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Sample records for aortic aneurysms complicated

  1. MULTIDETECTOR COMPUTED TOMOGRAPHY FOR IDENTIFICATION OF INSTABILITY OF AORTIC ANEURYSM WALL

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    M. V. Vishnyakova Jr.

    2015-01-01

    Full Text Available Background: Aortic aneurysm is characterized by high incidence, polymorphic clinical features and sudden onset of severe complications.Aim: To develop a standard multidetector computed tomography (MDCT protocol for aortic aneurysm examination and image analysis for detection the signs of aortic wall instability.Materials and methods: The data of 279 patients with aortic aneurysm who underwent MDCT examination during 2009–2014 was analyzed to identify aortic wall instability signs.Results: Complicated course of aortic aneurysm was observed in 100 cases (36%. The most common sign of aortic wall instability was aortic dissection. According to our results, a new definition of aortic aneurysm complications was elaborated. It included signs of aortic wall instability with incomplete and/or complete disruption of aortic wall layers. A scheme of the most common patterns of aortic wall abnormalities was proposed, allowing a radiologist to reach high accuracy in characterizing this pathology.Conclusion: A dedicated MDCT protocol for aortic aneurysm detection and image analysis can increase quality of radiologic assessment of aneurysm wall allowing to approach to the level of histological accuracy.

  2. Treatment strategy for ruptured abdominal aortic aneurysms.

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    Davidovic, L

    2014-07-01

    Rupture is the most serious and lethal complication of the abdominal aortic aneurysm. Despite all improvements during the past 50 years, ruptured abdominal aortic aneurysms are still associated with very high mortality. Namely, including patients who die before reaching the hospital, the mortality rate due to abdominal aortic aneurysm rupture is 90%. On the other hand, during the last twenty years, the number of abdominal aortic aneurysms significantly increased. One of the reasons is the fact that in majority of countries the general population is older nowadays. Due to this, the number of degenerative AAA is increasing. This is also the case for patients with abdominal aortic aneurysm rupture. Age must not be the reason of a treatment refusal. Optimal therapeutic option ought to be found. The following article is based on literature analysis including current guidelines but also on my Clinics significant experience. Furthermore, this article show cases options for vascular medicine in undeveloped countries that can not apply endovascular procedures at a sufficient level and to a sufficient extent. At this moment the following is evident. Thirty-day-mortality after repair of ruptured abdominal aortic aneurysms is significantly lower in high-volume hospitals. Due to different reasons all ruptured abdominal aortic aneurysms are not suitable for EVAR. Open repair of ruptured abdominal aortic aneurysm should be performed by experienced open vascular surgeons. This could also be said for the treatment of endovascular complications that require open surgical conversion. There is no ideal procedure for the treatment of AAA. Each has its own advantages and disadvantages, its own limits and complications, as well as indications and contraindications. Future reductions in mortality of ruptured abdominal aortic aneurysms will depend on implementation of population-based screening; on strategies to prevent postoperative organ injury and also on new medical technology

  3. Endovascular repair of abdominal aortic aneurysms: vascular anatomy, device selection, procedure, and procedure-specific complications.

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    Bryce, Yolanda; Rogoff, Philip; Romanelli, Donald; Reichle, Ralph

    2015-01-01

    Abdominal aortic aneurysm (AAA) is abnormal dilatation of the aorta, carrying a substantial risk of rupture and thereby marked risk of death. Open repair of AAA involves lengthy surgery time, anesthesia, and substantial recovery time. Endovascular aneurysm repair (EVAR) provides a safer option for patients with advanced age and pulmonary, cardiac, and renal dysfunction. Successful endovascular repair of AAA depends on correct selection of patients (on the basis of their vascular anatomy), choice of the correct endoprosthesis, and familiarity with the technique and procedure-specific complications. The type of aneurysm is defined by its location with respect to the renal arteries, whether it is a true or false aneurysm, and whether the common iliac arteries are involved. Vascular anatomy can be divided more technically into aortic neck, aortic aneurysm, pelvic perfusion, and iliac morphology, with grades of difficulty with respect to EVAR, aortic neck morphology being the most common factor to affect EVAR appropriateness. When choosing among the devices available on the market, one must consider the patient's vascular anatomy and choose between devices that provide suprarenal fixation versus those that provide infrarenal fixation. A successful technique can be divided into preprocedural imaging, ancillary procedures before AAA stent-graft placement, the procedure itself, postprocedural medical therapy, and postprocedural imaging surveillance. Imaging surveillance is important in assessing complications such as limb thrombosis, endoleaks, graft migration, enlargement of the aneurysm sac, and rupture. Last, one must consider the issue of radiation safety with regard to EVAR. (©)RSNA, 2015.

  4. Various complications of abdominal aortic aneurysm : CT findings

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    Lee, Sang Hoon; Byun, Jae Young; Kim, Bum Soo; Kim, Euy Neyung; Yoon, Yeo Dong; Kim, Ki Tae; Lee, Jae Mun; Shinn, Kyung Sub [The Catholic Univ. of Korea, College of Medicine, Seoul (Korea, Republic of)

    1997-03-01

    To evaluate on abdominal CT the type and incidence of various complications of abdominal aortic aneurysm (AAA). Twenty six suspected cases of AAA were confirmed by operation(n=21) and by CT(n=5). The etiology, size, shape and incidence of various complications of AAA were then retrospectively evaluated. In addition, post-operative complications were also evaluated in five cases. The etiology of the aneurysm was atherosclerotic in 18 cases and mycotic in three;it showed the presence of Behcet disease in three cases, of tuberculosis in one, and of Marfan syndrome in one. Among the 18 fusiform AAA, the mean maximum diameter of ruptured AAA(7.5{+-}3cm, n=3) was significantly larger than that of unruptured AAA(4.9{+-}1.6cm, n=15) (p<0.05). The saccular type was much more likely to rupture than the fusiform type(p<0.00001). Out of the eight saccular AAA, seven ruptured ; their mean maximum diameter was 3.9{+-}1.3cm This was significantly smaller than that of ruptured fusiform aneurysm(p<0.05). The most common complication was rupture, and occurred ten of 26 cases(38%). Others included hydronephrosis in three cases, bowel infarction in one, and perianeurysmal retroperitoneal fibrosis in one case. Various post-oper-ative complications developed in five patients; these comprised periprosthetic pseudoaneurysm with hematoma (two cases), bowel ischemia (one), focal renal infarction (one), and secondary aorticoduodenal fistula (one). The most common complication of AAA was rupture, the rate of which was much higher in the saccular type with smaller size than the fusiform type. Other various and uncommon complications were observed. CT was helpful in detecting complications arising from AAA and in planning its treatment.

  5. Various complications of abdominal aortic aneurysm : CT findings

    International Nuclear Information System (INIS)

    Lee, Sang Hoon; Byun, Jae Young; Kim, Bum Soo; Kim, Euy Neyung; Yoon, Yeo Dong; Kim, Ki Tae; Lee, Jae Mun; Shinn, Kyung Sub

    1997-01-01

    To evaluate on abdominal CT the type and incidence of various complications of abdominal aortic aneurysm (AAA). Twenty six suspected cases of AAA were confirmed by operation(n=21) and by CT(n=5). The etiology, size, shape and incidence of various complications of AAA were then retrospectively evaluated. In addition, post-operative complications were also evaluated in five cases. The etiology of the aneurysm was atherosclerotic in 18 cases and mycotic in three;it showed the presence of Behcet disease in three cases, of tuberculosis in one, and of Marfan syndrome in one. Among the 18 fusiform AAA, the mean maximum diameter of ruptured AAA(7.5±3cm, n=3) was significantly larger than that of unruptured AAA(4.9±1.6cm, n=15) (p<0.05). The saccular type was much more likely to rupture than the fusiform type(p<0.00001). Out of the eight saccular AAA, seven ruptured ; their mean maximum diameter was 3.9±1.3cm This was significantly smaller than that of ruptured fusiform aneurysm(p<0.05). The most common complication was rupture, and occurred ten of 26 cases(38%). Others included hydronephrosis in three cases, bowel infarction in one, and perianeurysmal retroperitoneal fibrosis in one case. Various post-oper-ative complications developed in five patients; these comprised periprosthetic pseudoaneurysm with hematoma (two cases), bowel ischemia (one), focal renal infarction (one), and secondary aorticoduodenal fistula (one). The most common complication of AAA was rupture, the rate of which was much higher in the saccular type with smaller size than the fusiform type. Other various and uncommon complications were observed. CT was helpful in detecting complications arising from AAA and in planning its treatment

  6. A case of megadolichobasilar anomaly complicated with abdominal aortic aneurysm

    International Nuclear Information System (INIS)

    Ohta, Sumio; Yamaguchi, Takenori; Ogata, Jun; Ito, Mamoru; Kikuchi, Haruhiko

    1985-01-01

    A 41 year-old hypertensive male was admitted because of progressing left hemiparesis and dysarthria. CT demonstrated hyperdense mass with partial contast enhancement, extending from the level of lower pons to that of suprasellar cistern. Reconstructed imaging of CT showed a huge mass lesion, in which a wide curvilinear hyperdensity was demonstrated by contrast enhancement. Cerebral angiography revealed markedly elongated and dilated basilar and carotid arteries. From these findings, the prepontine hyperdense mass lesion was diagnosed as megadolichobasilar anomaly with marked wall thickening. Findings of abdominal aortic angiography and abdominal CT suggested the presence of marked atherosclerosis and abdominal aortic aneurysm with mural thrombi. Six months after initial admission, neurological symptoms gradually deteriorated and CT showed dilatation of the 3rd and lateral ventricles, suggesting the development of hydrocephalus due to compression of the aqueduct by the megadolichobasilar anomaly. Magnetic resonance imaging at this time demonstrated more details of the lesion and the deformity of the brain stem, which was not detected by conventional CT. Complications of vascular anomalies other than intracranial vasculature, such as aortic aneurysm, have also been repoted. After the introduction of CT, demonstration of a long, wide, curvilinear structure with abnormal density in the prepontine region has been reported to be diagnostic for the megadolichobasilar anomaly. This patient has had hypertension for 10 years, which probably due to chronic nephritis. He had no definite findings for angitis, but had abdominal aortic aneurysm with mural thrombi. From these findings, atherosclerosis of large vessels may have played one of the roles in the pathogenesis of this anomaly in the present case. (J.P.N.)

  7. Imaging and management of complications of open surgical repair of abdominal aortic aneurysms

    International Nuclear Information System (INIS)

    Nayeemuddin, M.; Pherwani, A.D.; Asquith, J.R.

    2012-01-01

    Open repair is still considered the reference standard for long-term repair of abdominal aortic aneurysms (AAA). In contrast to endovascular aneurysm repair (EVAR), patients with open surgical repair of AAA are not routinely followed up with imaging. Although complications following EVAR are widely recognized and routinely identified on follow-up imaging, complications also do occur following open surgical repair. With frequent use of multi-slice computed tomography (CT) angiography (CTA) in vascular patients, there is now improved recognition of the potential complications following open surgical repair. Many of these complications are increasingly being managed using endovascular techniques. The aim of this review is to illustrate a variety of potential complications that may occur following open surgical repair and to demonstrate their management using both surgical and endovascular techniques.

  8. Importance of stent-graft design for aortic arch aneurysm repair

    Directory of Open Access Journals (Sweden)

    C Singh

    2017-02-01

    Full Text Available Aneurysm of the aorta is currently treated by open surgical repair or endovascular repair. However, when the aneurysm occurs in regions between the aortic arch and proximal descending aorta, it can be a complex pathology to treat due to its intricate geometry. When complex aortic aneurysms are treated with the conventional procedures, some of the patients present with significant post-operative complications and high mortality rate. Consequently, a clinically driven hybrid innovation known as the frozen elephant trunk procedure was introduced to treat complex aortic aneurysms. Although this procedure significantly reduces mortality rate and operating time, it is still associated with complications such as endoleaks, spinal cord ischemia, renal failure and stroke. Some of these complications are consequences of a mismatch in the biomechanical behaviour of the stent-graft device and the aorta. Research on complex aneurysm repair tended to focus more on the surgical procedure than the stent-graft design. Current stent-graft devices are suitable for straight vessels. However, when used to treat aortic aneurysm with complex geometry, these devices are ineffective in restoring the normal biological and biomechanical function of the aorta. A stent-graft device with mechanical properties that are comparable with the aorta and aortic arch could possibly lead to fewer post-operative complications, thus, better outcome for patients with complex aneurysm conditions. This review highlights the influence stent-graft design has on the biomechanical properties of the aorta which in turn can contribute to complications of complex aneurysm repair. Design attributes critical for minimising postoperative biomechanical mismatch are also discussed.

  9. Endovascular Aortic Aneurysm Repair for Abdominal Aortic Aneurysm: Single Center Experience in 122 Patients

    International Nuclear Information System (INIS)

    Lee, Yun Young; Song, Jang Hyeon; Kim, Yong Tae; Yim, Nam Yeol; Kim, Jae Kyu; Lee, Ho Kyun; Choi, Soo Jin Na; Chung, Sang Young; Kim, Soo Hyun; Chang, Nam Kyu

    2013-01-01

    To analyze a single center experience of endovascular aneurysm repair (EVAR) for abdominal aortic aneurysms. Results of 122 patients who underwent EVAR were analyzed, retrospectively. Sex, age, aneurysmal morphology, hostile neck anatomy, preprocedural and postprocedural sac-diameter, technical and clinical success, postprocedural complication and need of additional procedure were analyzed. A total of 111 male and 11 female patients were included. Morphology of the aneurysms was as follows: fusiform (n = 108), saccular (n = 3) and ruptured type (n = 11). Sixty-four patients had hostile neck anatomy. The preprocedural mean sac-diameter was 52.4 mm. Postprocedural sac-diameter was decreased or stable in 110 patients (90.2%) and increased in 8 patients (6.6%). Technical success rate was 100% and clinical success rate was 86.1%. Fifty-one patients showed endoleak (41.8%) and 15 patients (12.3%) underwent secondary intervention due to type I endoleak (n = 4), type II endoleak (n = 4) and stent-graft thrombosis (n = 7). EVAR is a safe and effective therapy for abdominal aortic aneurysm, and it has high technical success and clinical success rate, and low complication rate.

  10. Infected aortic aneurysm and inflammatory aortic aneurysm. In search of an optimal differential diagnosis

    International Nuclear Information System (INIS)

    Ishizaka, Nobukazu; Sohmiya, Koichi; Miyamura, Masatoshi; Umeda, Tatsuya; Tsuji, Motomu; Katsumata, Takahiro; Miyata, Tetsuro

    2012-01-01

    Infected aortic aneurysm and inflammatory aortic aneurysm each account for a minor fraction of the total incidence of aortic aneurysm and are associated with periaortic inflammation. Despite the similarity, infected aortic aneurysm generally shows a more rapid change in clinical condition, leading to a fatal outcome; in addition, delayed diagnosis and misuse of corticosteroid or immunosuppressing drugs may lead to uncontrolled growth of microorganisms. Therefore, it is mandatory that detection of aortic aneurysm is followed by accurate differential diagnosis. In general, infected aortic aneurysm appears usually as a saccular form aneurysm with nodularity, irregular configuration; however, the differential diagnosis may not be easy sometimes for the following reasons: symptoms, such as abdominal and/or back pain and fever, and blood test abnormalities, such as elevated C-reactive protein and enhanced erythrocyte sedimentation rate, are common in infected aortic aneurysm, but they are not found infrequently in inflammatory aortic aneurysm; some inflammatory aortic aneurysms are immunoglobulin (Ig) G4-related, but not all of them; the prevalence of IgG4 positivity in infected aortic aneurysm has not been well investigated; enhanced uptake of 18F-fluorodeoxyglucose (FDG) by 18F-FDG-positron emission tomography may not distinguish between inflammation mediated by autoimmunity and that mediated by microorganism infection. Here we discuss the characteristics of these two forms of aortic aneurysm and the points of which we have to be aware before reaching a final diagnosis. (author)

  11. Extra-anatomic endovascular repair of an abdominal aortic aneurysm with a horseshoe kidney supplied by the aneurysmal aorta.

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    Rey, Jorge; Golpanian, Samuel; Yang, Jane K; Moreno, Enrique; Velazquez, Omaida C; Goldstein, Lee J; Chahwala, Veer

    2015-07-01

    Abdominal aortic aneurysm complicated by a horseshoe kidney (HSK, fused kidney) represents a unique challenge for repair. Renal arteries arising from the aneurysmal aorta can further complicate intervention. Reports exist describing the repair of these complex anatomies using fenestrated endografts, hybrid open repairs (debranching), and open aneurysmorrhaphy with preservation of renal circulation. We describe an extra-anatomic, fully endovascular repair of an abdominal aortic aneurysm with a HSK partially supplied by a renal artery arising from the aneurysm. We successfully applied aortouni-iliac endografting, femorofemoral bypass, and retrograde renal artery perfusion via the contralateral femoral artery to exclude the abdominal aortic aneurysm and preserve circulation to the HSK. Copyright © 2015 Elsevier Inc. All rights reserved.

  12. Surgical treatment of pararenal aortic aneurysms in the elderly.

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    Illuminati, G; D'Urso, A; Ceccanei, G; Caliò, F; Vietri, F

    2007-12-01

    Until fenestrated endografts will become the standard treatment of pararenal aortic aneurysms, open surgical repair will currently be employed for the repair of this condition. Suprarenal aortic control and larger surgical dissection represent additional technical requirements for the treatment of pararenal aneurysms compared to those of open infrarenal aortic aneurysms, which may be followed by an increased operative mortality and morbidity rate. As this may be especially true when dealing with pararenal aneurysms in an elderly patients' population, we decided to retrospectively review our results of open pararenal aortic aneurysm repair in elderly patients, in order to compare them with those reported in the literature. Twenty-one patients over 75 years of age were operated on for pararenal aortic aneurysms in a ten-year period. Exposure of the aorta was obtained by means of a retroperitoneal access, through a left flank incision on the eleventh rib. When dealing with interrenal aortic aneurysm the left renal artery was revascularized with a retrograde bypass arising from the aortic graft, proximally bevelled on the ostium of the right renal artery. Two patients died of acute intestinal ischemia, yielding a postoperative mortality of 9.5%. Nonfatal complications included 2 pleural effusions, a transitory rise in postoperative serum creatinine levels in 3 cases, and one retroperitoneal hematoma. Mean renal ischemia time was 23 min, whereas mean visceral ischemia time was 19 min. Mean inhospital stay was 11 days. Pararenal aortic aneurysms in the elderly can be surgically repaired with results that are similar to those obtained in younger patients.

  13. Endovascular abdominal aortic aneurysm repair complicated by spondylodiscitis and iliaco-enteral fistula.

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    de Koning, Heleen D; van Sterkenburg, Steven M M; Pierie, Maurice E N; Reijnen, Michel M P J

    2008-06-01

    Infections of abdominal aortic endografts are rare. There are no reports on the association with spondylodiscitis. We report a case of a 74-year-old man who underwent endovascular aneurysm repair (EVAR) and subsequently femorofemoral bypass placement due to occlusion of the right limb of the endograft. Six months later, he presented with rectal bleeding, weight loss, back pain, and low abdominal pain. Computed tomography revealed extensive abscess formation with air in and around the endograft and psoas muscles, in continuity with destructive spondylodiscitis L3-4. There was a small bowel loop in close proximity to the occluded right leg of the endograft, which was filled with air bubbles. An axillofemoral bypass was created followed by a laparotomy. Intra-operatively, an iliaco-enteral fistula was found. The small bowel defect was sutured, the endograft completely removed, and the infrarenal aorta and both common iliac arteries were closed. Necrotic fragments of the former L3-4 disk were removed. The postoperative course was uneventful. Seven months postoperatively, the patient had recovered well. Iliaco-enteric fistula and spondylodiscitis are rare complications of aortic aneurysm repair. This is the first report of spondylodiscitis after EVAR.

  14. Infective Endocarditis of the Aortic Valve with Anterior Mitral Valve Leaflet Aneurysm

    NARCIS (Netherlands)

    Tomsic, Anton; Li, Wilson W. L.; van Paridon, Marieke; Bindraban, Navin R.; de Mol, Bas A. J. M.

    2016-01-01

    Mitral valve leaflet aneurysm is a rare and potentially devastating complication of aortic valve endocarditis. We report the case of a 48-year-old man who had endocarditis of the native aortic valve and a concomitant aneurysm of the anterior mitral valve leaflet. Severe mitral regurgitation occurred

  15. Transluminal endovascular stent-graft for the treatment of aortic aneurysms

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    Lee, Do Yun; Chang, Byung Chul; Shim, Won Heum; Cho, Seung Yun; Chung, Nam Sik; Kwon, Hyuk Moon; Lee, Young Joon; Lee, Jong Tae [Yonsei University College of Medicine, Seoul (Korea, Republic of)

    1995-09-15

    The standard treatment for aortic aneurysms is surgical replacement with a prosthetic graft. Currently there is great interest in endoluminal intervention for treatment of aortic aneurysm. The purpose of this study was to evaluate the safety and effectiveness of endoluminally placed Stent-graft for the treatment of aortic aneurysms. Transluminal endovascular Stent-graft placements were attempted in 9 patients with infra-renal aortic aneurysms(n 6), thoracic aortic aneurysm(n = 1), and aortic dissection(n = 2). The endovascular Stent-grafts were custom-designed for each patient and were constructed of self-expandable modified Gianturco Stents covered with polytetrafluroethylene. The Stent-grafts were introduced through a 16-18 French sheath and expanded to 17-30 mm in diameter. The endovascular therapy was performed using a common femoral artery cutdown with local anesthesia. The endovascular Stent-graft deployment was achieved in 7 of 9 patients. Two cases failed deployment of the Stent-graft due to iliac artery stenosis and tortousity. There were complete thrombosis of the thoracic and infra-renal aortic aneurysm surround the Stent-graft in 3 patients, and persistent leak with partial thrombosis in 2. Two patients with aortic dissection were successfully treated by obliteration of entry tears. There were no major complication associated with Stent-graft placement. These preliminary results show that transluminal endovascular Stent-grafts offer great promise and good results. Further investigation is needed to establish its long-term safety and efficacy.

  16. Transluminal endovascular stent-graft for the treatment of aortic aneurysms

    International Nuclear Information System (INIS)

    Lee, Do Yun; Chang, Byung Chul; Shim, Won Heum; Cho, Seung Yun; Chung, Nam Sik; Kwon, Hyuk Moon; Lee, Young Joon; Lee, Jong Tae

    1995-01-01

    The standard treatment for aortic aneurysms is surgical replacement with a prosthetic graft. Currently there is great interest in endoluminal intervention for treatment of aortic aneurysm. The purpose of this study was to evaluate the safety and effectiveness of endoluminally placed Stent-graft for the treatment of aortic aneurysms. Transluminal endovascular Stent-graft placements were attempted in 9 patients with infra-renal aortic aneurysms(n 6), thoracic aortic aneurysm(n = 1), and aortic dissection(n = 2). The endovascular Stent-grafts were custom-designed for each patient and were constructed of self-expandable modified Gianturco Stents covered with polytetrafluroethylene. The Stent-grafts were introduced through a 16-18 French sheath and expanded to 17-30 mm in diameter. The endovascular therapy was performed using a common femoral artery cutdown with local anesthesia. The endovascular Stent-graft deployment was achieved in 7 of 9 patients. Two cases failed deployment of the Stent-graft due to iliac artery stenosis and tortousity. There were complete thrombosis of the thoracic and infra-renal aortic aneurysm surround the Stent-graft in 3 patients, and persistent leak with partial thrombosis in 2. Two patients with aortic dissection were successfully treated by obliteration of entry tears. There were no major complication associated with Stent-graft placement. These preliminary results show that transluminal endovascular Stent-grafts offer great promise and good results. Further investigation is needed to establish its long-term safety and efficacy

  17. Abdominal Aortic Aneurysm (AAA)

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    ... Professions Site Index A-Z Abdominal Aortic Aneurysm (AAA) Abdominal aortic aneurysm (AAA) occurs when atherosclerosis or plaque buildup causes the ... weak and bulge outward like a balloon. An AAA develops slowly over time and has few noticeable ...

  18. Wall stress on ascending thoracic aortic aneurysms with bicuspid compared with tricuspid aortic valve.

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    Xuan, Yue; Wang, Zhongjie; Liu, Raymond; Haraldsson, Henrik; Hope, Michael D; Saloner, David A; Guccione, Julius M; Ge, Liang; Tseng, Elaine

    2018-03-08

    Guidelines for repair of bicuspid aortic valve-associated ascending thoracic aortic aneurysms have been changing, most recently to the same criteria as tricuspid aortic valve-ascending thoracic aortic aneurysms. Rupture/dissection occurs when wall stress exceeds wall strength. Recent studies suggest similar strength of bicuspid aortic valve versus tricuspid aortic valve-ascending thoracic aortic aneurysms; thus, comparative wall stress may better predict dissection in bicuspid aortic valve versus tricuspid aortic valve-ascending thoracic aortic aneurysms. Our aim was to determine whether bicuspid aortic valve-ascending thoracic aortic aneurysms had higher wall stresses than their tricuspid aortic valve counterparts. Patients with bicuspid aortic valve- and tricuspid aortic valve-ascending thoracic aortic aneurysms (bicuspid aortic valve = 17, tricuspid aortic valve = 19) greater than 4.5 cm underwent electrocardiogram-gated computed tomography angiography. Patient-specific 3-dimensional geometry was reconstructed and loaded to systemic pressure after accounting for prestress geometry. Finite element analyses were performed using the LS-DYNA solver (LSTC Inc, Livermore, Calif) with user-defined fiber-embedded material model to determine ascending thoracic aortic aneurysm wall stress. Bicuspid aortic valve-ascending thoracic aortic aneurysms 99th-percentile longitudinal stresses were 280 kPa versus 242 kPa (P = .028) for tricuspid aortic valve-ascending thoracic aortic aneurysms in systole. These stresses did not correlate to diameter for bicuspid aortic valve-ascending thoracic aortic aneurysms (r = -0.004) but had better correlation to tricuspid aortic valve-ascending thoracic aortic aneurysms diameter (r = 0.677). Longitudinal stresses on sinotubular junction were significantly higher in bicuspid aortic valve-ascending thoracic aortic aneurysms than in tricuspid aortic valve-ascending thoracic aortic aneurysms (405 vs 329 kPa, P = .023). Bicuspid

  19. Thoracoabdominal aortic aneurysm repair in patients with marfan syndrome.

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    Mommertz, G; Sigala, F; Langer, S; Koeppel, T A; Mess, W H; Schurink, G W H; Jacobs, M J

    2008-02-01

    We assessed the surgical outcome of descending thoracic aortic aneurysm repair (DTAA) and thoracoabdominal aortic aneurym (TAAA) repair in patients with Marfan syndrome. During a six year period, 206 patients underwent DTAA and TAAA repair. In 22 patients, Marfan syndrome was confirmed. The median age was 40 years with a range between 18 and 57 years. The extend of the aneurysms included 6 DTAA (1 with total arch, 2 with distal hemi-arch), 11 type II TAAA (2 with total arch, 3 with distal hemi-arch), 4 type III and one type IV TAAA. All patients suffered from previous type A (n=6) or type B (n=16) aortic dissection and 15 already underwent aortic procedures like Bentall (n=7) and ascending aortic replacement (n=8). All patients were operated on according to the standard protocol with cerebrospinal fluid drainage, distal aortic and selective organ perfusion and monitoring motor evoked potentials. In patients undergoing simultaneous arch replacement (via left thoracotomy), transcranial Doppler and EEG assessed cerebral physiology during antegrade brain perfusion. In four patients circulatory arrest under moderate hypothermia was required. In-hospital mortality did not occur. Major postoperative complications like paraplegia, renal failure, stroke and myocardial infarction were not encountered. Mean pre-operative creatinine level was 125mmol/L, which peaked to a mean maximal level of 130 and returned to 92mmol/L at discharge. Median intubation time was 1.5 days (range 0.33-30 days). Other complications included bleeding requiring surgical intervention (n=1), arrhythmia (n=2), pneumonia (n=2) and respiratory distress syndrome (n=1). At a median follow-up of 38 months all patients were alive. Using CT surveillance, new or false aneurysms were not detected, except in one patient who developed a visceral patch aneurysm six years after open type II repair. Surgical repair of descending and thoracoabdominal aortic aneurysms provides excellent short- and mid-term results in

  20. Postoperative CT findings of aortic aneurysm and dissection

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    Seong, Su Ok; Lee, Ghi Jai; Kim, Mi Young; Moon, Hi Eun; Shim, Jae Chan; Lee, Hong Sup; Kim, Ho Kyun; Han, Chang Yul

    1995-01-01

    To assess the postoperative CT findings of aortic aneurysms or dissections treared by resection-and graft replacement or continuous-suture graft-inclusion technique. We reviewed postoperative follow-up CT findings of 14 patients, 19 cases. There were 8 patients (10 cases) of aortic aneurysm and 6 patients (9 cases) of aortic dissection which involved the thoracic aorta in 9 patients (13 cases) and abdominal aorta in 5 patients (6 cases). The interval of follow-up after operation was from 9 days to 2 year 9 months. On CT scans, we analyzed the appearance of graft materials, differences of CT findings between two surgical techniques, and normal or abnormal postoperative CT findings. Most of grafts appeared as hyperdense ring on precontrast scan, and all of them were not separated from aortic lumen on postcontrast scan. On CT findings of patients who were operated by continuous-suture graft-inclusion technique, perigraft thrombus was concentrically located with sharp demarcation by native aortic wall and its density was homogeneous, but in cases of those operated by resection-and graft replacement, perigraft hematoma was eccentrically located with indistinct margin and its density was heterogeneous and native aortic wall could not be delineated. In patients without complication, perigraft thrombus or hematoma (15 cases), perigraft calcification (11 cases), residual intimal flap (6 cases), graft deformity (4 cases), perigraft air (2 cases) and reconstructed vessels (1 cases) were noted. And in one patient with complication, perigraft flow was noted with more increased perigraft hematoma. Precise knowledge of the differences of CT findings between two surgical techniques and normal postoperative CT findings is crucial to evaluated the postoperative CT findings in aortic aneurysm and dissection

  1. Tobacco smoking and aortic aneurysm

    DEFF Research Database (Denmark)

    Sode, Birgitte F; Nordestgaard, Børge; Grønbæk, Morten

    2013-01-01

    BACKGROUND: We determined the predictive power of tobacco smoking on aortic aneurysm as opposed to other risk factors in the general population. METHODS: We recorded tobacco smoking and other risk factors at baseline, and assessed hospitalization and death from aortic aneurysm in 15,072 individuals...... aneurysm in males and females consuming above 20g tobacco daily was 3.5% and 1.3%, among those >60years with plasma cholesterol >5mmol/L and a systolic blood pressure >140mmHg. CONCLUSIONS: Tobacco smoking is the most important predictor of future aortic aneurysm outcomes in the general population...

  2. MMP-2 Isoforms in Aortic Tissue and Serum of Patients with Ascending Aortic Aneurysms and Aortic Root Aneurysms

    Science.gov (United States)

    Tscheuschler, Anke; Meffert, Philipp; Beyersdorf, Friedhelm; Heilmann, Claudia; Kocher, Nadja; Uffelmann, Xenia; Discher, Philipp; Siepe, Matthias; Kari, Fabian A.

    2016-01-01

    Objective The need for biological markers of aortic wall stress and risk of rupture or dissection of ascending aortic aneurysms is obvious. To date, wall stress cannot be related to a certain biological marker. We analyzed aortic tissue and serum for the presence of different MMP-2 isoforms to find a connection between serum and tissue MMP-2 and to evaluate the potential of different MMP-2 isoforms as markers of high wall stress. Methods Serum and aortic tissue from n = 24 patients and serum from n = 19 healthy controls was analyzed by ELISA and gelatin zymography. 24 patients had ascending aortic aneurysms, 10 of them also had aortic root aneurysms. Three patients had normally functioning valves, 12 had regurgitation alone, eight had regurgitation and stenosis and one had only stenosis. Patients had bicuspid and tricuspid aortic valves (9/15). Serum samples were taken preoperatively, and the aortic wall specimen collected during surgical aortic repair. Results Pro-MMP-2 was identified in all serum and tissue samples. Pro-MMP-2 was detected in all tissue and serum samples from patients with ascending aortic/aortic root aneurysms, irrespective of valve morphology or other clinical parameters and in serum from healthy controls. We also identified active MMP-2 in all tissue samples from patients with ascending aortic/aortic root aneurysms. None of the analyzed serum samples revealed signals relatable to active MMP-2. No correlation between aortic tissue total MMP-2 or tissue pro-MMP-2 or tissue active MMP-2 and serum MMP-2 was found and tissue MMP-2/pro-MMP-2/active MMP-2 did not correlate with aortic diameter. This evidence shows that pro-MMP-2 is the predominant MMP-2 species in serum of patients and healthy individuals and in aneurysmatic aortic tissue, irrespective of aortic valve configuration. Active MMP-2 species are either not released into systemic circulation or not detectable in serum. There is no reliable connection between aortic tissue—and serum MMP-2

  3. Aortic Disease in the Young: Genetic Aneurysm Syndromes, Connective Tissue Disorders, and Familial Aortic Aneurysms and Dissections

    Directory of Open Access Journals (Sweden)

    Marcelo Cury

    2013-01-01

    Full Text Available There are many genetic syndromes associated with the aortic aneurysmal disease which include Marfan syndrome (MFS, Ehlers-Danlos syndrome (EDS, Loeys-Dietz syndrome (LDS, familial thoracic aortic aneurysms and dissections (TAAD, bicuspid aortic valve disease (BAV, and autosomal dominant polycystic kidney disease (ADPKD. In the absence of familial history and other clinical findings, the proportion of thoracic and abdominal aortic aneurysms and dissections resulting from a genetic predisposition is still unknown. In this study, we propose the review of the current genetic knowledge in the aortic disease, observing, in the results that the causative genes and molecular pathways involved in the pathophysiology of aortic aneurysm disease remain undiscovered and continue to be an area of intensive research.

  4. Delayed Presentation of a Giant Ascending Aortic Aneurysm following Aortic Valve Replacement

    Directory of Open Access Journals (Sweden)

    Tugrul Göncü

    2009-01-01

    Full Text Available Giant ascending aortic aneurysm formation following aortic valve replacement is rare. A 28-year-old man who underwent aortic valve replacement with a prosthetic valve for aortic regurgitation secondary to congenital bicuspid aortic valve about 10 years ago was diagnosed with a giant ascending aortic aneurysm about 16 cm in diameter in follow-up. The aneurysm was resected leaving the functional old mechanical prosthesis in place and implanted a 34-mm Hemashield woven graft, associated with the left and right coronary artery button implantation. Histological findings of the aortic aneurysm wall showed cystic medial necrosis. The postoperative course was uneventful and postoperative examination demonstrated good surgical results.

  5. Preoperative Evaluation and Endovascular Procedure of Intraoperative Aneurysm Rupture During Thoracic Endovascular Aortic Repair

    Energy Technology Data Exchange (ETDEWEB)

    Zha, Bin-Shan, E-mail: binszha2013@163.com; Zhu, Hua-Gang, E-mail: huagzhu@yeah.net; Ye, Yu-Sheng, E-mail: yeyusheng@aliyun.com; Li, Yong-Sheng, E-mail: 872868848@qq.com; Zhang, Zhi-Gong, E-mail: zzgedward@sina.com; Xie, Wen-Tao, E-mail: 345344347@qq.com [The First Affiliated Hospital of Anhui Medical University, Department of Vascular Surgery (China)

    2017-03-15

    Thoracic aortic aneurysms are now routinely repaired with endovascular repair if anatomically feasible because of advantages in safety and recovery. However, intraoperative aneurysm rupture is a severe complication which may have an adverse effect on the outcome of treatment. Comprehensive preoperative assessment and considerate treatment are keys to success of endovascular aneurysm repair, especially during unexpected circumstances. Few cases have reported on intraoperative aortic rupture, which were successfully managed by endovascular treatment. Here, we present a rare case of an intraoperative aneurysm rupture during endovascular repair of thoracic aortic aneurysm with narrow neck and angulated aorta arch (coarctation-associated aneurysm), which was successfully treated using double access route approach and iliac limbs of infrarenal devices.Level of EvidenceLevel 5.

  6. Mycotic Aneurysm of the Aortic Arch

    Directory of Open Access Journals (Sweden)

    Ji Hye Seo

    2014-08-01

    Full Text Available A mycotic aneurysm of the thoracic aorta is rare. We report a case of mycotic aneurysm that developed in the aortic arch. An 86-year-old man was admitted with fever and general weakness. Blood culture yielded methicillin-resistant Staphylococcus aureus. Chest X-ray showed an enlarged aortic arch, and computed tomography scan revealed an aneurysm in the aortic arch. The patient was treated only with antibiotics and not surgically. The size of the aneurysm increased rapidly, resulting in bronchial obstruction and superimposed pneumonia. The patient died of respiratory failure.

  7. Outcome after endovascular abdominal aortic aneurysm repair: a meta-analysis.

    NARCIS (Netherlands)

    Walschot, L.H.B.; Laheij, R.J.F.; Verbeek, A.L.M.

    2002-01-01

    PURPOSE: To determine the frequencies of complications and risk factors for complications following endovascular abdominal aortic aneurysm (AAA) repair (EVAR). METHODS: Thirty-nine articles published between October 1995 and October 1999 in English, German, French, or Dutch were identified in

  8. Ruptured Aortic Aneurysm From Late Type II Endoleak Treated by Transarterial Embolization

    International Nuclear Information System (INIS)

    Gunasekaran, Senthil; Funaki, Brian; Lorenz, Jonathan

    2013-01-01

    Endoleak is the most common complication after endovascular aneurysm repair. The most common type of endoleak, a type II endoleak, typically follows a benign course and is only treated when associated with increasing aneurysm size. In this case report, we describe a ruptured abdominal aortic aneurysm due to a late, type II endoleak occurring 10 years after endovascular aneurysm repair that was successfully treated by transarterial embolization.

  9. Hybrid endovascular treatment of an aortic root and thoracoabdominal aneurysm in a high-risk patient with Marfan syndrome.

    Science.gov (United States)

    Gelpi, Guido; Mazzaccaro, Daniela; Romagnoni, Claudia; Contino, Monica; Antona, Carlo

    2013-05-01

    This report describes the hybrid endovascular treatment of an aortic root dilatation and a thoracoabdominal aneurysm in a high-risk patient with Marfan syndrome. A 50-year-old male, in hemodialysis for polycystic kidney and polycystic liver, was referred to our department for aortic root dilatation of 5 cm and a 6.3-cm thoracoabdominal aneurysm . He already underwent surgical repair of abdominal aortic aneurysm 10 years ago, complicated by pseudoaneurysm of the proximal anastomosis that had been treated in another center, with an endoprosthesis. The patient underwent aortic root replacement, aortic valve sparing operation, and rerouting of the superior mesenteric artery and celiac trunk to the ascending aorta. The thoracoabdominal aneurysm was excluded with an endoprosthesis few days after the surgical step. The 12-month computed tomography scan confirmed the complete exclusion of the thoracoabdominal aneurysm.

  10. A case of acute ischemic colitis after endovascular abdominal aortic aneurysm repair

    Directory of Open Access Journals (Sweden)

    Grigorios Voulalas

    2016-01-01

    Full Text Available Colonic ischemia is a recognized complication of either open or endovascular abdominal aortic aneurysm repair. The clinical difficulty in establishing the diagnosis, the severity of this complication and the patient's poor physiological status may lead to a fatal outcome. We presented a case of ischemic colitis in a patient with patent hypogastric arteries that occurred after an endovascular abdominal aortic aneurysm repair as well as a review of the available literature. The patient's preoperative, intraoperative and postoperative data were recorded. A thorough search through the Google data and Medline to review similar cases or any analyses that referred to ischemic colitis after endovascular abdominal aneurysm repair was conducted. A 76-year-old male was admitted to our department for an elective endovascular repair of an 8 cm in diameter abdominal aortic aneurysm. A Zenith bifurcation graft was implanted. The whole procedure was uneventful and the final angiogram showed an accurate deployment of the endograft without endoleaks and patency of both hypogastric arteries. During the 1st postoperative day, the patient developed symptoms of acute abdomen in combination with metabolic acidosis and oliguria. He underwent an exploratory laparotomy, which revealed necrosis of the sigmoid. A Hartmann's procedure was performed; the patient was transferred to the intensive care unit where he deceased after 24 h. Postoperative ischemic colitis has been described after open abdominal aneurysm repair. The description of this complication has been reported since the early phase of endovascular abdominal aneurysm repair development with a current incidence of 1.5%–3.0%. Possible mechanisms that may contribute to ischemic colitis in spite of the presence of patent hypogastric arteries include atheroembolization, shock, vasopressive drugs and inferior mesenteric artery occlusion.

  11. Extensive spinal epidural hematoma: a rare complication of aortic coarctation

    Energy Technology Data Exchange (ETDEWEB)

    Zizka, J.; Elias, P.; Michl, A. [Dept. of Radiology, Charles University Hospital, Hradec Kralove (Czech Republic); Harrer, J. [Dept. of Cardiac Surgery, Charles University Hospital, Hradec Kralove (Czech Republic); Cesak, T. [Dept. of Neurosurgery, Charles University Hospital, Hradec Kralove (Czech Republic); Herman, A. [1. Dept. of Internal Medicine, Charles University Hospital, Hradec Kralove (Czech Republic)

    2001-07-01

    Development of collateral circulation belongs among the typical signs of aortic coarctation. Cerebral or spinal artery aneurysm formation with increased risk of subarachnoid hemorrhage represent the most common neurovascular complication of this disease. We report a case of a 20-year-old sportsman who developed acute non-traumatic paraplegia as a result of extensive spinal epidural hemorrhage from collateral vessels accompanying aortic coarctation which was unrecognized up to that time. To the best of our knowledge, acute spinal epidural hematoma as a complication of aortic coarctation has not been previously reported. (orig.)

  12. Extensive spinal epidural hematoma: a rare complication of aortic coarctation

    International Nuclear Information System (INIS)

    Zizka, J.; Elias, P.; Michl, A.; Harrer, J.; Cesak, T.; Herman, A.

    2001-01-01

    Development of collateral circulation belongs among the typical signs of aortic coarctation. Cerebral or spinal artery aneurysm formation with increased risk of subarachnoid hemorrhage represent the most common neurovascular complication of this disease. We report a case of a 20-year-old sportsman who developed acute non-traumatic paraplegia as a result of extensive spinal epidural hemorrhage from collateral vessels accompanying aortic coarctation which was unrecognized up to that time. To the best of our knowledge, acute spinal epidural hematoma as a complication of aortic coarctation has not been previously reported. (orig.)

  13. Perioperative nursing for patients receiving endovascular therapy for ruptured abdominal aortic aneurysm

    International Nuclear Information System (INIS)

    Dong Yanfen; Pan Wei; Zhang Hongpeng; Guo Wei; Liu Xiaoping; Wei Ren

    2010-01-01

    Objective: To discuss the nursing strategy and practical measures for patients with ruptured abdominal aortic aneurysm during the perioperative period of endovascular intervention. Methods: Endovascular therapy was carried out in 34 patients with ruptured abdominal aortic aneurysm,who were encountered in our department during the period of July 1997 to September 2008. The clinical data were retrospectively analyzed and the nursing points were summarized. Results: The average hospitalization days of the 34 patients were (14 ± 5) days, the mortality rate within 30 days was 23.5% (8/34). No nursing-related complications occurred. Conclusion: A comprehensive understanding of the mechanism, development and clinical evolution of ruptured abdominal aortic aneurysm is very important for nursing care. For nursing staff, well mastering the relevant nursing technique, carefully guarding against any nursing errors and lessening patient's suffering as far as possible, all these are the task of primary importance. (authors)

  14. Upper gastrointestinal obstruction secondary to aortoduodenal syndrome owing to a noninflammatory abdominal aortic aneurysm.

    LENUS (Irish Health Repository)

    Cahill, Kevin

    2012-01-31

    Aortoduodenal syndrome is a rare complication of an abdominal aortic aneurysm wherein the aneurysm sac obstructs the patient\\'s duodenum. It presents with the symptoms of an upper gastrointestinal tract obstruction and requires surgical intervention to relieve it. Previously, gastric bypass surgery was advocated, but now aortic replacement is the mainstay of treatment. We report a case of a 67-year-old woman whose aortoduodenal syndrome was successfully managed and review the literature on this topic.

  15. Atypical Presentation of a Type 2 Endoleak following Emergency Open Repair of a Ruptured Abdominal Aortic Aneurysm

    Directory of Open Access Journals (Sweden)

    K. Sharma

    Full Text Available : Background: An endoleak is a common complication following EVAR. Specifically, a Type 2 endoleak occurs because of retrograde flow from lumbar vessels outside the endograft within the aneurysm sac. Even though it is common following EVAR, it has not been identified as a complication following open ruptured abdominal aortic aneurysm (AAA repair. Report: A 73-year-old male underwent open repair of a ruptured AAA. Five months later, computed tomography revealed filling from a lumbar vessel mimicking a Type 2 “endoleak.” The initial ultrasound showed a single pair of lumbar vessels with aneurysm sac expansion 8 weeks later. The “endoleak” and expanding sac were treated, and the 2-year surveillance demonstrated sac shrinkage. Discussion: Because endoleak is a complication after EVAR, this case provides a unique presentation of Type 2 “endoleak” physiology following open repair of a ruptured AAA. It is believed that it is necessary to expand the list of possible complications after open ruptured AAA repair to include “endoleaks.” Keywords: Endoleak: EVAR, Ruptured aneurysm, Open abdominal aortic aneurysm

  16. Embolization by micro navigation for treatment of persistent type 2 Endoleaks after endovascular abdominal aortic aneurysm repair

    Directory of Open Access Journals (Sweden)

    Bruno Lorenção de Almeida

    2014-12-01

    Full Text Available Background:Endovascular repair has become established as a safe and effective method for treatment of abdominal aortic aneurysms. One major complication of this treatment is leakage, or endoleaks, of which type 2 leaks are the most common.Objective:To conduct a brief review of the literature and evaluate the safety and effectiveness of embolization by micronavigation for treatment of type 2 endoleaks.Method:A review of medical records from patients who underwent endovascular repair of abdominal aortic aneurysms identified 5 patients with persistent type 2 endoleaks. These patients were submitted to embolization by micronavigation.Results:In all cases, angiographic success was achieved and control CT scans showed absence of type 2 leaks and aneurysm sacs that had reduced in size after the procedure.Conclusion:Treatment of type 2 endoleaks using embolization by micronavigation is an effective and safe method and should be considered as a treatment option for this complication after endovascular repair of abdominal aortic aneurysms.

  17. Update on the prevention of death from ruptured abdominal aortic aneurysm.

    Science.gov (United States)

    Jacomelli, Jo; Summers, Lisa; Stevenson, Anne; Lees, Tim; Earnshaw, Jonothan J

    2017-09-01

    Objectives To monitor the early effect of a national population screening programme for abdominal aortic aneurysm in 65-year-old men. Setting The study used national statistics for death rates from abdominal aortic aneurysm (Office of National Statistics) and hospital admission data in England (Hospital Episode Statistics). Methods Information concerning deaths from abdominal aortic aneurysm (ruptured and non-ruptured) (1999-2014) and hospital admissions for ruptured abdominal aortic aneurysm (2000-2015) was examined. Results The absolute number of deaths from abdominal aortic aneurysm in men and women aged 65 and over has decreased by around 30% from 2001 to 2014, but as the population has increased, the relative reduction was 45.6% and 40.0%, respectively. Some 65% of all abdominal aortic aneurysm deaths are in men aged over 65; women aged 65 and over account for around 31%. Deaths from ruptured abdominal aortic aneurysm in men aged 60-74 (the screened group) appear to be declining at the same rate as in men aged 75 and over. The relative decline in admissions to hospital with ruptured abdominal aortic aneurysm may be greater in men and women aged 60-74 (which contains the screened group of men), than those older, giving the first possible evidence that abdominal aortic aneurysm screening is having an effect. Conclusion The death rate from abdominal aortic aneurysm is declining rapidly in England. There is the first evidence that screening may be contributing to this reduction.

  18. Microarray analysis to identify the similarities and differences of pathogenesis between aortic occlusive disease and abdominal aortic aneurysm.

    Science.gov (United States)

    Wang, Guofu; Bi, Lechang; Wang, Gaofeng; Huang, Feilai; Lu, Mingjing; Zhu, Kai

    2018-06-01

    Objectives Expression profile of GSE57691 was analyzed to identify the similarities and differences between aortic occlusive disease and abdominal aortic aneurysm. Methods The expression profile of GSE57691 was downloaded from Gene Expression Omnibus database, including 20 small abdominal aortic aneurysm samples, 29 large abdominal aortic aneurysm samples, 9 aortic occlusive disease samples, and 10 control samples. Using the limma package in R, the differentially expressed genes were screened. Followed by enrichment analysis was performed for the differentially expressed genes using database for annotation, visualization, and integrated discovery online tool. Based on string online tool and Cytoscape software, protein-protein interaction network and module analyses were carried out. Moreover, integrated TF platform database and Cytoscape software were used for constructing transcriptional regulatory networks. Results As a result, 1757, 354, and 396 differentially expressed genes separately were identified in aortic occlusive disease, large abdominal aortic aneurysm, and small abdominal aortic aneurysm samples. UBB was significantly enriched in proteolysis related pathways with a high degree in three groups. SPARCL1 was another gene shared by these groups and regulated by NFIA, which had a high degree in transcriptional regulatory network. ACTB, a significant upregulated gene in abdominal aortic aneurysm samples, could be regulated by CLIC4, which was significantly enriched in cell motions. ACLY and NFIB were separately identified in aortic occlusive disease and small abdominal aortic aneurysm samples, and separately enriched in lipid metabolism and negative regulation of cell proliferation. Conclusions The downregulated UBB, NFIA, and SPARCL1 might play key roles in both aortic occlusive disease and abdominal aortic aneurysm, while the upregulated ACTB might only involve in abdominal aortic aneurysm. ACLY and NFIB were specifically involved in aortic occlusive

  19. Repair of aortic arch aneurysm under cardiopulmonary bypass and deep hypothermia with low flow: A case report

    Directory of Open Access Journals (Sweden)

    Md. Rezwanul Hoque

    2016-07-01

    Full Text Available Aortic arch surgery is the challenging and most difficult surgery among the cardiovascular operations. Cerebral and spinal complications are the most feared and common complications of aortic arch surgery. With best available techniques for cerebral and spinal protection, anesthetic management and good post-operative care; aortic arch surgery is considerably safer nowadays and satisfactory results can be achieved in most patients. Also, selecting the sites for arterial cannulation to maintain whole body circulation, during isolation of the aortic arch to operate on it, need proper anatomical description of the extent of the aneurysm. This is also achievable by the availability of the imaging techniques like Computed Tomog­raphy (CT with or without contrast, CT Angiography (CTA and Magnetic Resonance Imaging (MRI. We are reporting a case of aneurysm of aortic arch in a young adult, who had undergone repair under cardiopulmonary bypass and deep hypothermia with low flow and had normal convalescence without any cerebral or spinal complications.

  20. Anesthetic Implications of Emergent Cesarean Section in a Parturient with Marfan Syndrome Complicated by Ascending Aortic Aneurysm and Heart Failure

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    Young Sung Kim

    2014-07-01

    Full Text Available Cardiovascular comorbidities to the Marfan syndrome may induce hemodynamic instability especially in the parturients during labor or delivery. For anesthesiologists, it is challenging to maintain hemodynamic stability during Cesarean section in those patients with Marfan syndrome. Remifentanil is an ultra-short-acting opioid with rapid onset and offset of action which provides cardiovascular stability during surgery. Together with remifentanil, the use of a laryngeal mask airway can reduce the risk of hypertensive response followed by tracheal intubation. We describe the successful administration of remifentanil and application of laryngeal mask airway for emergent Cesarean section performed under general anesthesia in a patient with Marfan syndrome complicated by ascending aortic aneurysm and heart failure. The use of remifentanil (loading dose of 1 μg/kg for 1 min, 2 min before induction; thereafter continuous infusion dose of 0.1 μg/kg/min was useful to maintain hemodynamic stability of the parturient throughout the surgery without neonatal respiratory depression. Keywords: Ascending Aortic Aneurysm; Cesarean section; Laryngeal mask airway; Marfan syndrome; Remifentanil

  1. Operated DeBakey type III dissecting aortic aneurysm: review of 12 cases

    International Nuclear Information System (INIS)

    Moon, Hi Eun; Lee, Ghi Jai; Oh, Sang Joon; Yoon, Sei Ra; Shim, Jae Chan; Kim, Ho Kyun; Han, Chang Yul

    1995-01-01

    We evaluated the indications of operation and radiologic findings in 12 operated DeBakey type III aortic dissections. We retrospectively reviewed radiologic findings of 12 operated DeBakey type III aortic dissections, using CT, MRI, or aortography, and correlations were made with clinical course of the patients. Three cases were uncomplicated dissections. There were aneurysm rupture in 4 cases, impending rupture in 4 cases, occlusion of common iliac artery in 2 cases, occlusion of renal artery in 1 case, and compression of bronchus and esophagus by dilated aorta in 1 case. Associated clinical sign and symptoms were chest and back pain in 12 cases, claudication in 3 cases, dyspnea and dysphagia in 1 case, hoarseness in 1 case, and hemoptysis in 1 case. Post-operative complications were death from aneurysm rupture in 1 case, paraplegia in 2 cases, acute renal failure in 3 cases, and hemopericardium in 1 case. Although medical therapy is preferred in management of DeBakey type III aortic dissection, surgical treatment should be considered in patients with radiological findings of aortic rupture, impending rupture, occlusion of aortic major branches

  2. A proposal for standardizing computed tomography reports on abdominal aortic aneurysms

    International Nuclear Information System (INIS)

    Torlai, Fabiola Goda; Meirelles, Gustavo S. Portes; Miranda Junior, Fausto; Fonseca, Jose Honorio A.P. da; Ajzen, Sergio; D'Ippolito, Giuseppe

    2006-01-01

    Objective: to propose a model to standardize computed tomography reports on abdominal aortic aneurysms. Materials and methods: interviews were carried out with members of the Vascular Surgery Division of our institution, in the period between April and October 2004, aiming at developing a standardized model of computed tomography reports on abdominal aortic aneurysms. Based on this model, a questionnaire was elaborated and sent to other nine surgeons, all of them experienced in the field of abdominal aortic surgery. The questionnaires response rate was 55.5% (5/9). Results: the most frequently mentioned parameters of interest for evaluation of abdominal aortic aneurysms were: maximum diameter of proximal aortic neck, proximal aortic neck length to lower renal arteries, shape of proximal aortic neck, maximum diameter of the aneurysm and diameter of the common iliac arteries. These data allowed the development of a proposal for a model to standardize computed tomography reports. Conclusion: a model for standardized tomographic analysis of abdominal aortic aneurysms has met vascular surgeons' needs for following-up patients and planning their treatment. (author)

  3. Perioperative management of endovascular abdominal aortic aneurysm repair

    International Nuclear Information System (INIS)

    Wang Haofu; Wang Yuwei; Li Jun; Zhao Zonggang; Qi Sen

    2010-01-01

    with prosthesis. Three cases developed type III endoleak. Balloon dilation followed by additional stent-graft placement was adopted in one case. Thoracic endovascular aortic repair with subsequent EVAR was carried out in another patient with Stanford type A aortic dissection. Re-examination with CTA was performed 7-10 days after the treatment, and once a year thereafter. Results: EVAR was successfully completed in all patients. The main complications included thrombosis due to vascular kinking (n=1) and disruption of abdominal incision (n=1). No death due to surgery occurred. During the follow-up period of 6 month to 5 years all patients remained alive. Conclusion: With the advantages of high imaging quality and usefulness for accurate measure of parameters, CTA is the gold standard for preoperative and postoperative evaluation. EVAR is a safe and effective treatment for abdominal aortic aneurysm in aged patients with high-risk. (authors)

  4. The effect of endoleak on intra-aneurysmal pressure after EVE for abdominal aortic aneurysm

    International Nuclear Information System (INIS)

    Huang Sheng; Jing Zaiping; Mei Zhijun; Lu Qingsheng; Zhao Jun; Zhang Suzhen; Zhao Xin; Cai Lili; Tang Jingdong; Xiong Jiang; Liao Mingfang

    2003-01-01

    Objective: To investigate the intra-aneurysmal pressure curve in the presence of endoleak after endovascular exclusion (EVE) for abdominal aortic aneurysm (AAA). Methods: Infrarenal aortic aneurysms were created with bovine jugular vein segments or patches. Then they were underwent incomplete endovascular exclusion of the aneurysm and formation of endoleaks. The pressures of blood flow outside the graft into the sac were measured. Results: The intrasac pressure was higher than systemic pressure in the presence of endoleak. After sealing the endoleak, pressure decreased significantly, and the pressure cure showed approximately linear. Conclusion: The change of intra-aneurysmal pressure curve reflected the load on aneurysmal wall after EVE, and can also help to determine the endoleak existence

  5. Bovine aortic arch and idiopathic pulmonary artery aneurysm associated with bronchial compression

    Directory of Open Access Journals (Sweden)

    Süleyman Sezai Yıldız

    2015-09-01

    Full Text Available The left common carotid artery originating from the brachiocephalic trunk is termed the bovine aortic arch. Although it is the third most-common normal variant found in 9% humans, the origin of this term remains unclear. Until now, It has not been reported in the literature bovine aortic arch togetherness with pulmonary aneurysm and bronchial compression. Herein, we present a case with bovine aorta arch and pulmonary artery aneurysm associated with bronchial compression, which is incidentally detected by X-ray film. A 56-year-old Caucasian female admitted to the cardiology clinic with complaint of chest pain. Physical examination was unremarkable. Blood biochemistry values and cardiac markers were in normal range. Chest radiography revealed a widened mediastinum and prominent pulmonary conus with no active pulmonary disease. A subsequent transthoracic echocardiography revealed left ventricular hypertrophy, left atrial enlargement (diameter: 41 mm, mild mitral and tricuspid valve insufficiency, dilatation of main pulmonary artery (parasternal short-axis view diameter: 33 mm, normal pulmonary artery pressure and normal left ventricular systolic function. Computed tomography revealed bovine aortic arch associated with pulmonary artery aneurysm (diameter: 53 mm. And left main bronch of trachea was critically squeezed by aortic arch. Aortic and pulmonary vascular anomalies should be considered in patients with chest pain. And, identification with imaging modalities is important for prevention of chronic and irreversible complications.

  6. Proteomic identification of differentially expressed proteins in aortic wall of patients with ruptured and nonruptured abdominal aortic aneurysms

    DEFF Research Database (Denmark)

    Urbonavicius, Sigitas; Lindholt, Jes S.; Vorum, Henrik

    2009-01-01

    To compare the basic proteomic composition of abdominal aortic aneurysm (AAA) wall tissue in patients with nonruptured and ruptured aneurysms.......To compare the basic proteomic composition of abdominal aortic aneurysm (AAA) wall tissue in patients with nonruptured and ruptured aneurysms....

  7. Thoracic aortic aneurysms and dissections: endovascular treatment.

    Science.gov (United States)

    Baril, Donald T; Cho, Jae S; Chaer, Rabih A; Makaroun, Michel S

    2010-01-01

    The treatment of thoracic aortic disease has changed radically with the advances made in endovascular therapy since the concept of thoracic endovascular aortic repair was first described 15 years ago. Currently, there is a diverse array of endografts that are commercially available to treat the thoracic aorta. Multiple studies, including industry-sponsored and single-institution reports, have demonstrated excellent outcomes of thoracic endovascular aortic repair for the treatment of thoracic aortic aneurysms, with less reported perioperative morbidity and mortality in comparison with conventional open repair. Additionally, similar outcomes have been demonstrated for the treatment of type B dissections. However, the technology remains relatively novel, and larger studies with longer term outcomes are necessary to more fully evaluate the role of endovascular therapy for the treatment of thoracic aortic disease. This review examines the currently available thoracic endografts, preoperative planning for thoracic endovascular aortic repair, and outcomes of thoracic endovascular aortic repair for the treatment of both thoracic aortic aneurysms and type B aortic dissections. Mt Sinai J Med 77:256-269, 2010. (c) 2010 Mount Sinai School of Medicine.

  8. Familial Abdominal Aortic Aneurysm : Clinical Features and Genetics

    NARCIS (Netherlands)

    K.M. van de Luijtgaarden (Koen)

    2016-01-01

    markdownabstractAbstract Cardiovascular disease is the most important cause of death in the world and encompasses occlusive as well as aneurysmal disease. The most common aneurysm in humans is the abdominal aortic aneurysm (AAA). The question is why the aorta dilates in aneurysmal disease and

  9. ADAMTS-1 in abdominal aortic aneurysm.

    Directory of Open Access Journals (Sweden)

    Emina Vorkapic

    Full Text Available Extracellular matrix degradation is a hallmark of abdominal aortic aneurysm (AAA. Among proteases that are capable of degrading extracellular matrix are a disintegrin and metalloproteases with thrombospondin motifs (ADAMTS. Pathogenesis of these proteases in AAA has not been investigated until date.Human aneurysmal and control aortas were collected and analyzed with RT-PCR measuring the ADAMTS-1, 4,5,6,8,9,10,13,17 and ADAMTSL-1. Expression of a majority of the investigated ADAMTS members on mRNA level was decreased in aneurysm compared to control aorta. ADAMTS-1 was one of the members that was reduced most. Protein analysis using immunohistochemistry and western blot for localization and expression of ADAMTS-1 revealed that ADAMTS-1 was present predominantly in areas of SMCs and macrophages in aneurysmal aorta and higher expressed in AAA compared to control aortas. The role of ADAMTS-1 in AAA disease was further examined using ADAMTS-1 transgenic/apoE-/- mice with the experimental angiotensin II induced aneurysmal model. Transgenic mice overexpressing ADAMTS-1 showed to be similar to ADAMTS-1 wild type mice pertaining collagen, elastin content and aortic diameter.Several of the ADAMTS members, and especially ADAMTS-1, are down regulated at mRNA level in AAA, due to unknown mechanisms, at the same time ADAMTS-1 protein is induced. The cleavage of its substrates, don't seem to be crucial for the pathogenesis of AAA but rather more important in the development of thoracic aortic aneurysm and atherosclerosis as shown in previous studies.

  10. Outcomes of fenestrated and branched endovascular repair of complex abdominal and thoracoabdominal aortic aneurysms.

    Science.gov (United States)

    Schanzer, Andres; Simons, Jessica P; Flahive, Julie; Durgin, Jonathan; Aiello, Francesco A; Doucet, Danielle; Steppacher, Robert; Messina, Louis M

    2017-09-01

    More than 80% of infrarenal aortic aneurysms are treated by endovascular repair. However, adoption of fenestrated and branched endovascular repair for complex aortic aneurysms has been limited, despite high morbidity and mortality associated with open repair. There are few published reports of consecutive outcomes, inclusive of all fenestrated and branched endovascular repairs, starting from the inception of a complex aortic aneurysm program. Therefore, we examined a single center's consecutive experience of fenestrated and branched endovascular repair of complex aortic aneurysms. This is a single-center, prospective, observational cohort study evaluating 30-day and 1-year outcomes in all consecutive patients who underwent fenestrated and branched endovascular repair of complex aortic aneurysms (definition: requiring one or more fenestrations or branches). Data were collected prospectively through an Institutional Review Board-approved registry and a physician-sponsored investigational device exemption clinical trial (G130210). We performed 100 consecutive complex endovascular aortic aneurysm repairs (November 2010 to March 2016) using 58 (58%) commercially manufactured custom-made devices and 42 (42%) physician-modified devices to treat 4 (4%) common iliac, 42 (42%) juxtarenal, 18 (18%) pararenal, and 36 (36%) thoracoabdominal aneurysms (type I, n = 1; type II, n = 4; type III, n = 12; type IV, n = 18; arch, n = 1). The repairs included 309 fenestrations, branches, and scallops (average of 3.1 branch arteries/case). All patients had 30-day follow-up for 30-day event rates: three (3%) deaths; six (6%) target artery occlusions; five (5%) progressions to dialysis; eight (8%) access complications; one (1%) paraparesis; one (1%) bowel ischemia; and no instances of myocardial infarction, paralysis, or stroke. Of 10 type I or type III endoleaks, 8 resolved (7 with secondary intervention, 1 without intervention). Mean follow-up time was 563 days (interquartile range

  11. Colorectal cancer associated with abdominal aortic aneurysm: results of EVAR followed by colectomy.

    Science.gov (United States)

    Illuminati, Giulio; Ceccanei, Gianluca; Pacilè, Maria A; Pizzardi, Giulia; Palumbo, Piergaspare; Vietri, Francesco

    2013-01-01

    The association of colorectal cancer and abdominal aortic aneurysm (AAA) is infrequent but poses special problems of priority of treatment under elective circumstances. The purpose of this study was to retrospectively evaluate the outcome of 16 consecutive patients undergoing endovascular aneurysm repair (EVAR) followed by colectomy. Operative mortality was nil. Operative morbidity included two transient rise of serum creatinine level and one extraperitoneal anastomotic leakage which evolved favourably with conservative treatment. EVAR allowed a very short delay of treatment of colorectal cancer after aneurysm repair, minimizing operative complications.

  12. Massive aggrecan and versican accumulation in thoracic aortic aneurysm and dissection.

    Science.gov (United States)

    Cikach, Frank S; Koch, Christopher D; Mead, Timothy J; Galatioto, Josephine; Willard, Belinda B; Emerton, Kelly B; Eagleton, Matthew J; Blackstone, Eugene H; Ramirez, Francesco; Roselli, Eric E; Apte, Suneel S

    2018-03-08

    Proteoglycan accumulation is a hallmark of medial degeneration in thoracic aortic aneurysm and dissection (TAAD). Here, we defined the aortic proteoglycanome using mass spectrometry, and based on the findings, investigated the large aggregating proteoglycans aggrecan and versican in human ascending TAAD and a mouse model of severe Marfan syndrome. The aortic proteoglycanome comprises 20 proteoglycans including aggrecan and versican. Antibodies against these proteoglycans intensely stained medial degeneration lesions in TAAD, contrasting with modest intralamellar staining in controls. Aggrecan, but not versican, was increased in longitudinal analysis of Fbn1mgR/mgR aortas. TAAD and Fbn1mgR/mgR aortas had increased aggrecan and versican mRNAs, and reduced expression of a key proteoglycanase gene, ADAMTS5, was seen in TAAD. Fbn1mgR/mgR mice with ascending aortic dissection and/or rupture had dramatically increased aggrecan staining compared with mice without these complications. Thus, aggrecan and versican accumulation in ascending TAAD occurs via increased synthesis and/or reduced proteolytic turnover, and correlates with aortic dissection/rupture in Fbn1mgR/mgR mice. Tissue swelling imposed by aggrecan and versican is proposed to be profoundly deleterious to aortic wall mechanics and smooth muscle cell homeostasis, predisposing to type-A dissections. These proteoglycans provide potential biomarkers for refined risk stratification and timing of elective aortic aneurysm repair.

  13. Comparative Study of Cerebral Protection during Surgery of Thoracic Aortic Aneurysm

    OpenAIRE

    Sueda, Taijiro; Nomimura, Takayuki; Kagawa, Tetsuya; Morita, Satoru; Hayashi, Saiho; Orihashi, Kazumasa; Shikata, Hiroo; Ryuu, Gou; Hamanaka, Yoshiharu; Matsuura, Yuichiro; Kawaue, Yasushi; Kanehiro, Keiichi; Ishihara, Hiroshi

    1992-01-01

    During the past 5 years, 30 cases of thoracic aortic aneurysm were treated. Selective cerebral perfusion (SCP) and retrograde cerebral perfusion (RCP) were conducted for cerebral protection during aortic cross clamping. SCP was carried out in 5 cases of dissecting aneurysm (all Stanford type A, including a case of AAE) and 3 cases of arch aneurysm. RCP was conducted in 5 cases of dissecting aneurysm (4 Stanford type A; 1 Stanford type B with retrograde dissection) and 2 cases of aortic arch a...

  14. Valve-sparing operation for aortic root aneurysm in patients with Marfan syndrome.

    Science.gov (United States)

    Wang, R; Ma, W G; Tian, L X; Sun, L Z; Chang, Q

    2010-03-01

    We report our experience with aortic valve-sparing procedures in patients with Marfan syndrome and aortic root aneurysm. Between August 2003 and July 2007, we performed aortic valve-sparing procedures in 20 patients with aortic root aneurysm resulting from Marfan syndrome. Mean age was 28 +/- 10 years (range, 10 to 57 years), and there were 9 females and 11 males. A reimplantation technique was used in 9 cases, a remodeling technique in 8 and a patch technique in 3 cases. Additional procedures included total aorta replacement in 1 patient, and aortic arch replacement plus stented elephant trunk in 2 patients. The mean follow-up time was 46 +/- 16 months (range, 17 to 64 months). No in-hospital or late death occurred. Reexploration for bleeding was required in one case on postoperative day 1. No valve-related complications occurred during the follow-up period. At the end of follow-up, trivial or no aortic regurgitation was demonstrated in 14 patients, mild in 4 patients, moderate in 1 and severe in 1. Two patients with moderate and severe aortic regurgitation required reoperation. The early and mid-term results of the valve-sparing operations were favorable, and the durability of the preserved valve should encourage use of this technique in patients with Marfan syndrome.

  15. Endovascular Treatment of Infrarenal Abdominal Aortic Aneurysm with Short and Angulated Neck in High-Risk Patient

    Directory of Open Access Journals (Sweden)

    Stylianos Koutsias

    2013-01-01

    Full Text Available Endovascular treatment of abdominal aortic aneurysms (AAA is an established alternative to open repair. However lifelong surveillance is still required to monitor endograft function and signal the need for secondary interventions (Hobo and Buth 2006. Aortic morphology, especially related to the proximal neck, often complicates the procedure or increases the risk for late device-related complications (Hobo et al. 2007 and Chisci et al. 2009. The definition of a short and angulated neck is based on length (60° (Hobo et al. 2007 and Chisci et al. 2009. A challenging neck also offers difficulties during open repairs (OR, necessitating extensive dissection with juxta- or suprarenal aortic cross-clamping. Patients with extensive aneurysmal disease typically have more comorbidities and may not tolerate extensive surgical trauma (Sarac et al. 2002. It is, therefore, unclear whether aneurysms with a challenging proximal neck should be offered EVAR or OR (Cox et al. 2006, Choke et al. 2006, Robbins et al. 2005, Sternbergh III et al. 2002, Dillavou et al. 2003, and Greenberg et al. 2003. In our case the insertion of a thoracic endograft followed by the placement of a bifurcated aortic endograft for the treatment of a very short and severely angulated neck proved to be feasible offering acceptable duration of aneurysm exclusion. This adds up to our armamentarium in the treatment of high-risk patients, and it should be considered in emergency cases when the fenestrated and branched endografts are not available.

  16. [Albert Einstein and his abdominal aortic aneurysm].

    Science.gov (United States)

    Cervantes Castro, Jorge

    2011-01-01

    The interesting case of Albert Einstein's abdominal aortic aneurysm is presented. He was operated on at age 69 and, finding that the large aneurysm could not be removed, the surgeon elected to wrap it with cellophane to prevent its growth. However, seven years later the aneurysm ruptured and caused the death of the famous scientist.

  17. Anterior mitral valve aneurysm: a rare sequelae of aortic valve endocarditis

    Directory of Open Access Journals (Sweden)

    Rajesh Janardhanan

    2016-05-01

    Full Text Available In intravenous drug abusers, infective endocarditis usually involves right-sided valves, with Staphylococcus aureus being the most common etiologic agent. We present a patient who is an intravenous drug abuser with left-sided (aortic valve endocarditis caused by Enterococcus faecalis who subsequently developed an anterior mitral valve aneurysm, which is an exceedingly rare complication. A systematic literature search was conducted which identified only five reported cases in the literature of mitral valve aneurysmal rupture in the setting of E. faecalis endocarditis. Real-time 3D-transesophageal echocardiography was critical in making an accurate diagnosis leading to timely intervention. Learning objectives: • Early recognition of a mitral valve aneurysm (MVA is important because it may rupture and produce catastrophic mitral regurgitation (MR in an already seriously ill patient requiring emergency surgery, or it may be overlooked at the time of aortic valve replacement (AVR. • Real-time 3D-transesophageal echocardiography (RT-3DTEE is much more advanced and accurate than transthoracic echocardiography for the diagnosis and management of MVA.

  18. Anterior mitral valve aneurysm: a rare sequelae of aortic valve endocarditis.

    Science.gov (United States)

    Janardhanan, Rajesh; Kamal, Muhammad Umar; Riaz, Irbaz Bin; Smith, M Cristy

    2016-03-01

    SummaryIn intravenous drug abusers, infective endocarditis usually involves right-sided valves, with Staphylococcus aureus being the most common etiologic agent. We present a patient who is an intravenous drug abuser with left-sided (aortic valve) endocarditis caused by Enterococcus faecalis who subsequently developed an anterior mitral valve aneurysm, which is an exceedingly rare complication. A systematic literature search was conducted which identified only five reported cases in the literature of mitral valve aneurysmal rupture in the setting of E. faecalis endocarditis. Real-time 3D-transesophageal echocardiography was critical in making an accurate diagnosis leading to timely intervention. Early recognition of a mitral valve aneurysm (MVA) is important because it may rupture and produce catastrophic mitral regurgitation (MR) in an already seriously ill patient requiring emergency surgery, or it may be overlooked at the time of aortic valve replacement (AVR).Real-time 3D-transesophageal echocardiography (RT-3DTEE) is much more advanced and accurate than transthoracic echocardiography for the diagnosis and management of MVA. © 2016 The authors.

  19. Progressive Supranuclear Palsy-like Syndrome After Aortic Aneurysm Repair: A Case Series

    Directory of Open Access Journals (Sweden)

    Sirisha Nandipati

    2013-12-01

    Full Text Available The syndrome of progressive supranuclear palsy‐like syndrome is a rare complication of ascending aortic aneurysm repair. We report two patients with videos and present a table of prior reported cases. To our knowledge there is no previously published video of this syndrome. The suspected mechanism is brainstem injury though neuroimaging is often negative for an associated infarct. We hope our report will increase recognition of this syndrome after aortic surgery, especially in patients with visual complaints.

  20. Endovascular aneurysm repair (EVAR) follow-up imaging: the assessment and treatment of common postoperative complications

    International Nuclear Information System (INIS)

    Ilyas, S.; Shaida, N.; Thakor, A.S.; Winterbottom, A.; Cousins, C.

    2015-01-01

    Endovascular abdominal aortic aneurysm repair (EVAR) is a well-established procedure, which has long-term mortality rates similar to that of open repair. It has the additional benefit of being less invasive, making it the favoured method of treating abdominal aortic aneurysms in elderly and high-risk patients with multiple co-morbidities. The main disadvantage of EVAR is the higher rate of re-intervention, due to device-related complications, including endoleaks, limb occlusion, stent migration, kinking, and infection. As a result lifelong surveillance is required. In order to avoid missing these complications, intricate knowledge of stent graft design, good-quality diagnostic ultrasound skills, multiplanar reformatting of CT images, and reproducible investigations are important. Most of these complications can be treated via an endovascular approach using cuff extensions, uncovered stents, coils, and liquid embolic agents. Open surgery is reserved for complex complications, where an endovascular approach is not feasible. - Highlights: • Comprehensive pictorial review of EVAR related complications. • Importance of life-long EVAR surveillance, to prevent aortic rupture or lower limb ischaemia. • Identification and management of endoleaks, rupture, migration, kink/infolding, occlusion and infection

  1. Sequential Hybrid Repair of Aorta and Bilateral Common Iliac Arteries Secondary to Chronic Aortic Dissection with Extensive Aneurysmal Degeneration in a Marfan Patient.

    Science.gov (United States)

    Hinojosa, Carlos A; Anaya-Ayala, Javier E; Laparra-Escareno, Hugo; Lizola, Rene; Torres-Machorro, Adriana

    2017-09-01

    Marfan syndrome is a connective tissue disorder associated with aortic dissection, aneurysmal degeneration and rupture. These cardiovascular complications represent the main cause of mortality, therefore repair is indicated. We present a 35-year-old woman who experienced acute onset of chest pain. Her imaging revealed a chronic DeBakey type I dissection with aortic root dilation and descending thoracic aneurysmal degeneration. She underwent a Bentall procedure and endovascular exclusion of the descending thoracic aortic aneurysm. She was closely followed and 2 years later a computed tomography angiography (CTA) revealed the aneurysmal degeneration of the thoracoabominal aorta and bilateral iliac arteries. The patient underwent a composite reconstruction using multi-visceral branched and bifurcated Dacron grafts. At 5 years from her last surgery, a CTA revealed no new dissection or further aneurysmal degenerations. Aortic disease in Marfan patients is a complex clinical problem that may lead to secondary or tertiary aortic reconstructions; close follow-up is mandatory.

  2. Management of Endovascular Aortic Aneurysm Complications via Retrograde Catheterization Through the Distal Stent-Graft Landing Zone.

    Science.gov (United States)

    Zhang, Xicheng; Sun, Yuan; Chen, Zhaolei; Jing, Yuanhu; Xu, Miao

    2017-08-01

    A retrograde technique through the gap between the distal stent landing zone and the iliac artery wall has been applied to treat type II endoleak after endovascular aortic aneurysm repair (EVAR). In this study, we tried to investigate its efficacy in the management of type III endoleak and intraoperative accidental events. We reported 2 complications of EVAR that were difficult to treat with conventional methods. One patient had a sustained type III endoleak after EVAR, and the right renal artery was accidentally sealed by a graft stent in the other patient during the operation. Both complications were managed by the retrograde technique from the distal stent landing zone. In the first case, the endoleak was easily embolized by the retrograde catheterization technique, and in the second case, a stent was implanted in the right renal artery using the retrograde technique to restore blood flow. In some EVAR cases, the technique of retrograde catheterization through the distal stent-graft landing zone is feasible, safe, and easy to perform.

  3. Aortocaval fistula (ACF) in patients operated for ruptured aortic aneurysm (rAAA)

    DEFF Research Database (Denmark)

    Warning, Karina; Houlind, Kim Christian; Ravn, Hans

    Aortocaval fistula (ACF) in patients operated for Ruptured Acute Aorta Aneurysm (rAAA): A surgical challenge. Introduction Aortocaval fistula is a rare complication of abdominal aortic aneurysm (AAA). It been reported to be present in less than 1% of all AAAs. ACF arise in patients with large...... aneurysms and is typically discovered peroperatively in patients with rAAA. Open surgical treatment is associated with high mortality and morbidity. ACF is a result of spontaneously rupture of large atherosclerotic aneurysms into the inferior vena cava in 80%, 15% arise after trauma and 5% are iatrogenic....... Patients During the last 9 month, we have operated three cases with rAAA and ACF. All patients had an open, acute operation. All ACFs detected during operation. Common for all operations was that the patients had large aneurysms (>10 cm) and extensive bleeding (3-4 l) immediately when the aneurysm...

  4. Bentall procedure in ascending aortic aneurysm: hospital mortality.

    Science.gov (United States)

    Galicia-Tornell, Matilde Myriam; Marín-Solís, Bertha; Fuentes-Orozco, Clotilde; Martínez-Martínez, Manuel; Villalpando-Mendoza, Esteban; Ramírez-Orozco, Fermín

    2010-01-01

    Ascending aortic aneurysm disease (AAAD) shows a low frequency, heterogeneous behavior, high risk of rupture, dissection and mortality, making elective surgery necessary. Several procedures have been developed, and the Bentall technique is considered as the reference standard. The objective was to describe the hospital mortality of AAAD surgically treated using the Bentall procedure. We carried out a descriptive study. Included were 23 patients with AAAD who were operated on between March 1, 2005 and September 30, 2008 at our hospital. Data were obtained from clinical files, and descriptive statistics were selected for analysis. The study population was comprised of 23 patients with an average age of 46 years; 83% were males. Etiology was nonspecific degeneration of the middle layer with valve implication in 43%, bivalve aorta in 22%, Marfan syndrome, Turner's syndrome and poststenotic aneurysms each represented 9%, and Takayasu disease and ankylosing spondylitis 4% each. Associated heart disease was reported in six (26%) patients as follows: aortic coarctation (2), ischemic cardiopathy (1), atrial septal defect (1), severe mitral insufficiency (1) and subaortic membrane (1). Procedures carried out were Bentall surgery in 20 (87%) patients and aortoplasty with valve prosthesis in three (13%) patients. Complications reported were abnormal bleeding with mediastinal exploration (17%), nosocomial pneumonia (13%), arrhythmia (13%), and septic shock (9%). Mortality was reported in three (13%) patients due to septic shock and ventricular fibrillation. Surgical mortality with the Bentall procedure is similar to published results by other specialized centers. Events related to the basic aortic pathology, surgical technique, aortic valve prosthesis and left ventricular dysfunction encourage longterm studies with follow-up.

  5. Renal failure after operation for abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Olsen, P S; Schroeder, T; Perko, M

    1990-01-01

    Among 656 patients undergoing surgery for abdominal aortic aneurysm, 81 patients (12%) developed postoperative renal failure. Before operation hypotension and shock occurred in 88% of the patients with ruptured aneurysm, whereas none of the patients operated electively were hypotensive. Dialysis...... was performed in 32 patients, while the remaining 49 patients were managed without dialysis. Within 30 days after the operation 47 patients (58%) had died. There was no difference in mortality between patients in dialysis and patients managed without dialysis. Thirteen patients died during follow-up. In six...... cases the death was caused by renal failure only or in combination with failure of other organs. Analysis of the cumulative survival shows that, if the patients survive the postoperative period, their life expectancy is comparable to that of patients without renal complications....

  6. A 10-year institutional experience with open branched graft reconstruction of aortic aneurysms in connective tissue disorders versus degenerative disease.

    Science.gov (United States)

    Hicks, Caitlin W; Lue, Jennifer; Glebova, Natalia O; Ehlert, Bryan A; Black, James H

    2017-11-01

    Aortic reconstruction for complex thoracoabdominal aortic aneurysms (TAAAs) can be challenging, especially in patients with connective tissue disorders (CTDs) in whom tissue fragility is a major concern. Branched graft reconstruction is a more complex operation compared with inclusion patch repair of the aorta but is frequently necessary in patients with CTDs or other pathologies because of anatomic reasons. We describe our institutional experience with open branched graft reconstruction of aortic aneurysms and compare outcomes for patients with CTDs vs degenerative pathologies. We retrospectively analyzed all patients undergoing open aortic reconstruction using branched grafts at our institution between July 2006 and December 2015. Postoperative outcomes, including perioperative morbidity and mortality, midterm graft patency, and the development of new aneurysms, were compared for patients with CTD vs degenerative disease. During the 10-year study period, 137 patients (CTD, 29; degenerative, 108) underwent aortic repair with branched graft reconstruction. CTD patients were significantly younger (39 ± 1.9 vs 68 ± 1.0 years; P disease, coronary artery disease; P degenerative disease. Perioperative mortality (CTD: 10% [n = 3] vs degenerative: 6% [n = 6]; P = .40) and any complication (62% vs 55%; P = .47) were similar between groups. At a median follow-up time of 14.5 months (interquartile range: 6.5, 43.9 months), CTD patients were more likely to develop both new aortic (21%) and nonaortic (14%) aneurysms compared with the degenerative group (7% and 4% for aortic and nonaortic aneurysms, respectively; P = .02). Loss of branch graft patency occurred in 0 of 99 grafts (0%) in CTD patients and in 13 of 167 grafts (7.8%) in degenerative disease patients (P = .005). Loss of branch graft patency occurred most commonly in left renal artery bypass grafts (77%) and was clinically asymptomatic (creatinine: 1.77 ± 0.13 mg/dL currently vs 1.41 ± 0

  7. Locally Different Endothelial Nitric Oxide Synthase Protein Levels in Ascending Aortic Aneurysms of Bicuspid and Tricuspid Aortic Valve

    Directory of Open Access Journals (Sweden)

    Salah A. Mohamed

    2012-01-01

    Full Text Available Aims. Dysregulated expression of the endothelial nitric oxide synthase (eNOS is observed in aortic aneurysms associated with bicuspid aortic valve (BAV. We determined eNOS protein levels in various areas in ascending aortic aneurysms. Methods and Results. Aneurysmal specimens were collected from 19 patients, 14 with BAV and 5 with tricuspid aortic valve (TAV. ENOS protein levels were measured in the outer curve (convexity, the opposite side (concavity, the distal and above the sinotubular junction (proximal aneurysm. Cultured aortic cells were treated with NO synthesis inhibitor L-NAME and the amounts of 35 apoptosis-related proteins were determined. In patients with BAV, eNOS levels were significantly lower in the proximal aorta than in the concavity and distal aorta. ENOS protein levels were also lower in the convexity than in the concavity. While the convexity and distal aorta showed similar eNOS protein levels in BAV and TAV patients, levels were higher in TAV proximal aorta. Inhibition of NO synthesis in aneurysmal aortic cells by L-NAME led to a cytosolic increase in the levels of mitochondrial serine protease HTRA2/Omi. Conclusion. ENOS protein levels were varied at different areas of the aneurysmal aorta. The dysregulation of nitric oxide can lead to an increase in proapoptotic HTRA2/Omi.

  8. Epidemiology and contemporary management of abdominal aortic aneurysms.

    Science.gov (United States)

    Ullery, Brant W; Hallett, Richard L; Fleischmann, Dominik

    2018-05-01

    Abdominal aortic aneurysm (AAA) is most commonly defined as a maximal diameter of the abdominal aorta in excess of 3 cm in either anterior-posterior or transverse planes or, alternatively, as a focal dilation ≥ 1.5 times the diameter of the normal adjacent arterial segment. Risk factors for the development of AAA include age > 60, tobacco use, male gender, Caucasian race, and family history of AAA. Aneurysm growth and rupture risk appear to be associated with persistent tobacco use, female gender, and chronic pulmonary disease. The majority of AAAs are asymptomatic and detected incidentally on various imaging studies, including abdominal ultrasound, and computed tomographic angiography. Symptoms associated with AAA may include abdominal or back pain, thromboembolization, atheroembolization, aortic rupture, or development of an arteriovenous or aortoenteric fistula. The Screening Abdominal Aortic Aneurysms Efficiently (SAAAVE) Act provides coverage for a one-time screening abdominal ultrasound at age 65 for men who have smoked at least 100 cigarettes and women who have family history of AAA disease. Medical management is recommended for asymptomatic patients with AAAs  5 mm/6 months), or presence of a fusiform aneurysm with maximum diameter of 5.5 cm or greater. Intervention for AAA includes conventional open surgical repair and endovascular aortic stent graft repair.

  9. Mild aerobic exercise blocks elastin fiber fragmentation and aortic dilatation in a mouse model of Marfan syndrome associated aortic aneurysm.

    Science.gov (United States)

    Gibson, Christine; Nielsen, Cory; Alex, Ramona; Cooper, Kimbal; Farney, Michael; Gaufin, Douglas; Cui, Jason Z; van Breemen, Cornelis; Broderick, Tom L; Vallejo-Elias, Johana; Esfandiarei, Mitra

    2017-07-01

    for a new focus on promoting regular exercise in Marfan patients at an optimum intensity and create a paradigm shift in clinical care of Marfan patients suffering from aortic aneurysm complications. Copyright © 2017 the American Physiological Society.

  10. Aortic aneurysm disease vs. aortic occlusive disease - differences in outcome and intensive care resource utilisation after elective surgery

    DEFF Research Database (Denmark)

    Bisgaard, Jannie; Gilsaa, Torben; Rønholm, Ebbe

    2013-01-01

    clamping is more pronounced in patients with aortic aneurysm disease, which may affect outcome. OBJECTIVES: The aim of this observational cohort study was to evaluate outcome after open elective abdominal aortic surgery, hypothesising a higher 30-day mortality, a higher incidence of postoperative organ...... dysfunction and a longer length of stay in patients with aortic aneurysm compared with aortic occlusive disease. DESIGN: Cohort observational study based on prospective registrations from national databases. SETTING: Eight Danish hospitals, including four university and four non-university centres, from 1...... or inotropes, ICU stay more than 24 h, hospital length of stay and mortality. RESULTS: Compared with aortic occlusive disease, more patients with aortic aneurysm disease had ICU stays more than 24 h (62 vs. 45%, P ...

  11. Results of aortic root reimplantation in patients with ascending aortic aneurysm and concomitant aortic insufficiency

    Directory of Open Access Journals (Sweden)

    А. М. Чернявский

    2016-01-01

    Full Text Available Objective. The research was designed to evaluate the results of valve-sparing operations: aortic root reimplantation versus aortic valve reimplantation when repairing an ascending aortic aneurysm with concomitant aortic insufficiency.Methods. Within a blind prospective randomized study conducted over a period from 2011 to 2015, 64 patients underwent aortic valve-sparing surgery. The inclusion criteria were the presence of an aortic aneurysm of the ascending aorta exceeding 4.5 cm and concomitant aortic insufficiency. All patients were divided into two groups: FS-group, aortic root reimplantation (modified Florida Sleeve technique (n = 32 and D-group, aortic valve reimplantation (David procedure (n = 32. The average age of patients was 57±13 (23–73 years in the FS-group and 55±11 (15–72 years in the D-group (p = 0.54. Both groups had 78% of males (p>0.99. A Marfan syndrome was identified in 6% and 9% in the FS-group and D-group respectively (p>0.99. Mean diameter of the sinuses of Valsalva was 51±7 mm and 56±10 mm (p = 0.09, aortic insufficiency 2.6±0.7 and 2.8±0.8 (p = 0.15 in the FS-group and D-group respectively. In the FS-group and D-group LVEDD amounted to 5.5±0.7 mm and 5.9±1.0 mm (p = 0.09 respectively. All patients took echocardiography in the preoperative, postoperative and follow-up periods.Results. In the long-term period, the degree of aortic regurgitation was 1.2±0.1 in the FS-group and 1.3±0.6 in the D-group (p = 0.72. LVEDD was 123±23 mm in the FS-group and 139.6±80 mm in the D-group at follow-up (p = 0.77. There were no statistically significant differences in the analysis of complications. Overall 30-day in-hospital mortality was 7.8%. There were 2 (6.3% deaths in the FS-group and 3 (9.4% in the D-group (p = 0.5.Late mortality was 6.3% in the FS-group and 3.1% in the D-group (p>0.99. Cumulative survival at 4 years was 84.3% and 84.8% in the FS-group and the D-group respectively (p = 0.94. Cumulative freedom from

  12. Aortic Arch Aneurysms: Treatment with Extra anatomical Bypass and Endovascular Stent-Grafting

    International Nuclear Information System (INIS)

    Kato, Noriyuki; Shimono, Takatsugu; Hirano, Tadanori; Mizumoto, Toru; Ishida, Masaki; Fujii, Hideki; Yada, Isao; Takeda, Kan

    2002-01-01

    Endovascular repair of thoracic aortic aneurysms is emerging as an attractive alternative to surgical graft replacement. However,patients with aortic arch aneurysms are often excluded from the target of endovascular repair because of lack of suitable landing zones, especially at the proximal ones. In this paper we describe our method for treating patients with aortic arch aneurysms using a combination of extra anatomical bypass surgery and endovascular stent-grafting

  13. Percutaneous endovascular stent-graft treatment of aortic aneurysms and dissections: new techniques and initial experience

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Do Yun; Choi, Dong Hoon; Kang, Sung Gwon; Lee, Kwang Hoon; Won, Jong Yun [Yonsei University College of Medicine, Seoul (Korea, Republic of); Kang, Sung Gwon [Chosun University College of Medicine, Gwangju (Korea, Republic of); Won, Je Whan [Aju University College of Medicine, Suwon (Korea, Republic of); Song, Ho Young [Ulsan University College of Medicine, Seoul (Korea, Republic of)

    2003-01-01

    To evaluate the feasibility, safety and effectiveness of a newly designed percutaneously implanted separate stent-graft (SSG) for the treatment of aortic aneurysms and dissections. Using a percutaneous technique, SSG placement (in the descending thoracic aorta in 26 cases and infrarenal abdominal aorta in 24) was attempted in 50 patients with aortic aneurysms (n=27) or dissection (n=23). All SSGs were individually constructed using self-expandable nitinol stents and a Dacron graft, and were introduced through a 12 F sheath and expanded to a diameter of 20-34 mm. In all cases, vascular access was through the femoral artery. The clinical status of each patient was monitored, and postoperative CT was performed within one week of the procedure and at 3-6 month intervals afterwards. Endovascular stent-graft deployment was technically successful in 49 of 50 patients (98%). The one failure was due to torsion of the unsupported graft during deployment. Successful exclusion of aneurysms and the primary entry tears of dissections was achieved in all but three patients with aortic dissection. All patients in whom technical success was achieved showed complete thrombosis of the thoracic false lumen or aneurysmal sac, and the overall technique success rate was 92%. In addition, sixteen patients demonstrated complete resolution of the dissected thoracic false lumen (n=9) or aneurysmal sac (n=7). Immediate post-operative complications occurred at the femoral puncture site in one patient with an arteriovenous fistula, and in two, a new saccular aneurysm developed at the distal margin of the stent. No patients died, and there was no instance of paraplegia, stroke, side-branch occlusion or infection during the subsequent mean follow-up period of 9.4 (range, 2 to 26) months. In patients with aortic aneurysm and dissection, treatment with a separate percutaneously inserted stent-graft is technically feasible, safe, and effective.

  14. Thoracic aortic aneurysm in a child due to cystic medial necrosis

    International Nuclear Information System (INIS)

    Kuribayashi, Sachio; Watabe, Tsuneya; Ohtaki, Makoto; Matsuyama, Shoya; Ogawa, Junichi

    1983-01-01

    The valuable role of computed tomography (CT) was stressed in the diagnosis of thoracic aortic aneurysm in an asymptomatic 12-year-old child. She initially presented mediastinal mass on plain chest film. A saccular thoracic aortic aneurysm was highly suspected from the CT findings, and it was confirmed on angiography. Pathological examination of the aneurysmal wall revealed cystic medial necrosis. (author)

  15. Aneurysm and dissection in a patient with syphilitic aortitis

    Directory of Open Access Journals (Sweden)

    Fernando Pivatto Júnior

    2017-05-01

    Full Text Available In the antibiotic era, aortic aneurysm is a rare complication of syphilis, what makes the diagnostic assumption even more difficult. Nonetheless, this condition should be suspected in patients with aortic aneurysm. Reports of aortic dissection complicating syphilitic aortitis have been distinctly rare in the literature, and their cause-effect relationship has not been definitely established. In this case report, we present a 62-year-old woman with aortic aneurysm and dissection associated with an unexpected diagnosis of syphilitic aortitis.

  16. Diagnosis of mycotic abdominal aortic aneurysm using 67-gallium citrate

    International Nuclear Information System (INIS)

    Blumoff, R.L.; McCartney, W.; Jaques, P.; Johnson, G. Jr.

    1982-01-01

    Mycotic aneurysms of the abdominal aorta are uncommon, but potentially lethal problems. Clinical subtleties may suggest their presence, but in the past, definitive diagnosis has been dependent on surgical exploration or autopsy findings. A case is presented in which 67-gallium citrate abdominal scanning localized the site of sepsis in an abdominal aortic aneurysm and allowed for prompt and successful surgical therapy. This noninvasive technique is recommended as a adjunct in the diagnosis of mycotic abdominal aortic aneurysms

  17. Ruptured Aortic Aneurysm Presenting as a Stridor

    Directory of Open Access Journals (Sweden)

    Feng Lin

    2010-06-01

    Full Text Available Stridor is an abnormal, high-pitched, whining breathing sound caused by a blockage in the throat or larynx that is usually heard in children. We describe an unusual case of an 81-year-old man brought to our emergency department with sudden onset of dyspnea and shortness of breath. Stridor could be heard without a stethoscope. We found a huge mass over the left upper chest on chest radiography, suggesting an aortic aneurysm. We believed that these symptoms were caused by a huge thoracic aortic aneurysm with trachea/bronchi compression. Chest computed tomography confirmed the diagnosis.

  18. The influence of atmospheric pressure on aortic aneurysm rupture--is the diameter of the aneurysm important?

    Science.gov (United States)

    Urbanek, Tomasz; Juśko, Maciej; Niewiem, Alfred; Kuczmik, Wacław; Ziaja, Damian; Ziaja, Krzysztof

    2015-01-01

    The rate of aortic aneurysm rupture correlates with the aneurysm's diameter, and a higher rate of rupture is observed in patients with larger aneurysms. According to the literature, contradictory results concerning the relationship between atmospheric pressure and aneurysm size have been reported. In this paper, we assessed the influence of changes in atmospheric pressure on abdominal aneurysm ruptures in relationship to the aneurysm's size. The records of 223 patients with ruptured abdominal aneurysms were evaluated. All of the patients had been admitted to the department in the period 1997-2007 from the Silesia region. The atmospheric pressures on the day of the rupture and on the days both before the rupture and between the rupture events were compared. The size of the aneurysm was also considered in the analysis. There were no statistically significant differences in pressure between the days of rupture and the remainder of the days within an analysed period. The highest frequency of the admission of patients with a ruptured aortic aneurysm was observed during periods of winter and spring, when the highest mean values of atmospheric pressure were observed; however, this observation was not statistically confirmed. A statistically non-significant trend towards the higher rupture of large aneurysms (> 7 cm) was observed in the cases where the pressure increased between the day before the rupture and the day of the rupture. This trend was particularly pronounced in patients suffering from hypertension (p = 0.1). The results of this study do not support the hypothesis that there is a direct link between atmospheric pressure values and abdominal aortic aneurysm ruptures.

  19. Wall stress analysis of abdominal aortic aneurysms using 3D ultrasound

    NARCIS (Netherlands)

    Kok, A. M.; Nguyen, V.L.; Speelman, L.; Schurink, G.W.H.; van de Vosse, F.N.; Lopata, R.G.P.

    2014-01-01

    Wall stress analysis of abdominal aortic aneurysms is a novel tool that has proven high potential to improve risk stratification of abdominal aortic aneurysms (AAAs). Wall stress analysis is based on computed tomography (CT) and magnetic resonance imaging, however, 3D ultrasound (US) has not been

  20. Chronic inflammation, immune response, and infection in abdominal aortic aneurysms

    DEFF Research Database (Denmark)

    Lindholt, Jes Sanddal; Shi, G-P

    2006-01-01

    Abdominal aortic aneurysms (AAA) are associated with atherosclerosis, transmural degenerative processes, neovascularization, decrease in content of vascular smooth muscle cells, and a chronic infiltration, mainly located in the outer aortic wall. The chronic infiltration consists mainly of macrop......Abdominal aortic aneurysms (AAA) are associated with atherosclerosis, transmural degenerative processes, neovascularization, decrease in content of vascular smooth muscle cells, and a chronic infiltration, mainly located in the outer aortic wall. The chronic infiltration consists mainly...... matrix metalloproteases and cysteine proteases for aortic matrix remodeling. The lymphocyte activation may be mediated by microorganisms as well as autoantigens generated from vascular structural proteins, perhaps through molecular mimicry. As in autoimmune diseases, the risk of AAA is increased...

  1. Abdominal aortic aneurysm surgery

    DEFF Research Database (Denmark)

    Gefke, K; Schroeder, T V; Thisted, B

    1994-01-01

    The goal of this study was to identify patients who need longer care in the ICU (more than 48 hours) following abdominal aortic aneurysm (AAA) surgery and to evaluate the influence of perioperative complications on short- and long-term survival and quality of life. AAA surgery was performed in 553...... patients, 51 (9%) of whom died within the first 48 hours. Of the 502 patients who survived for more than 48 hours, 109 required ICU therapy for more than 48 hours, whereas 393 patients were in the ICU for less than 48 hours. The incidence of preoperative risk factors was similar for the two groups...... combined failed to permit identification of patients in whom the perioperative survival rate was 0%. Even 20% of patients with multiorgan failure survived for 6 months. Of those patients who needed ICU therapy for more than 48 hours, 41 (38%) were alive at the end of 1988. In response to a questionnaire...

  2. A multicentre observational study of the outcomes of screening detected sub-aneurysmal aortic dilatation

    DEFF Research Database (Denmark)

    Wild, J B; Stather, P W; Biancari, F

    2013-01-01

    of patients with screening detected sub aneurysmal aortic dilatation. DESIGN AND METHODS: Individual patient data was obtained from 8 screening programmes that had performed long term follow up of patients with sub aneurysmal aortic dilatation. Outcome measures recorded were the progression to true aneurysmal...... dilatation (aortic diameter 30 mm or greater), progression to size threshold for surgical intervention (55 mm) and aneurysm rupture. RESULTS: Aortic measurements for 1696 men and women (median age 66 years at initial scan) with sub-aneurysmal aortae were obtained, median period of follow up was 4.0 years...... (range 0.1-19.0 years). Following Kaplan Meier and life table analysis 67.7% of patients with 5 complete years of surveillance reached an aortic diameter of 30 mm or greater however 0.9% had an aortic diameter of 54 mm. A total of 26.2% of patients with 10 complete years of follow up had an AAA...

  3. The effects of preoperative cardiology consultation prior to elective abdominal aortic aneurysm repair on patient morbidity.

    Science.gov (United States)

    Boniakowski, Anna E; Davis, Frank M; Phillips, Amanda R; Robinson, Adina B; Coleman, Dawn M; Henke, Peter K

    2017-08-01

    Objectives The relationship between preoperative medical consultations and postoperative complications has not been extensively studied. Thus, we investigated the impact of preoperative consultation on postoperative morbidity following elective abdominal aortic aneurysm repair. Methods A retrospective review was conducted on 469 patients (mean age 72 years, 20% female) who underwent elective abdominal aortic aneurysm repair from June 2007 to July 2014. Data elements included detailed medical history, preoperative cardiology consultation, and postoperative complications. Primary outcomes included 30-day morbidity, consult-specific morbidity, and mortality. A bivariate probit regression model accounting for the endogeneity of binary preoperative medical consult and patient variability was estimated with a maximum likelihood function. Results Eighty patients had preoperative medical consults (85% cardiology); thus, our analysis focuses on the effect of cardiac-related preoperative consults. Hyperlipidemia, increased aneurysm size, and increased revised cardiac risk index increased likelihood of referral to cardiology preoperatively. Surgery type (endovascular versus open repair) was not significant in development of postoperative complications when controlling for revised cardiac risk index ( p = 0.295). After controlling for patient comorbidities, there was no difference in postoperative cardiac-related complications between patients who did and did not undergo cardiology consultation preoperatively ( p = 0.386). Conclusions When controlling for patient disease severity using revised cardiac risk index risk stratification, preoperative cardiology consultation is not associated with postoperative cardiac morbidity.

  4. Strain measurement of abdominal aortic aneurysm with real-time 3D ultrasound speckle tracking.

    Science.gov (United States)

    Bihari, P; Shelke, A; Nwe, T H; Mularczyk, M; Nelson, K; Schmandra, T; Knez, P; Schmitz-Rixen, T

    2013-04-01

    Abdominal aortic aneurysm rupture is caused by mechanical vascular tissue failure. Although mechanical properties within the aneurysm vary, currently available ultrasound methods assess only one cross-sectional segment of the aorta. This study aims to establish real-time 3-dimensional (3D) speckle tracking ultrasound to explore local displacement and strain parameters of the whole abdominal aortic aneurysm. Validation was performed on a silicone aneurysm model, perfused in a pulsatile artificial circulatory system. Wall motion of the silicone model was measured simultaneously with a commercial real-time 3D speckle tracking ultrasound system and either with laser-scan micrometry or with video photogrammetry. After validation, 3D ultrasound data were collected from abdominal aortic aneurysms of five patients and displacement and strain parameters were analysed. Displacement parameters measured in vitro by 3D ultrasound and laser scan micrometer or video analysis were significantly correlated at pulse pressures between 40 and 80 mmHg. Strong local differences in displacement and strain were identified within the aortic aneurysms of patients. Local wall strain of the whole abdominal aortic aneurysm can be analysed in vivo with real-time 3D ultrasound speckle tracking imaging, offering the prospect of individual non-invasive rupture risk analysis of abdominal aortic aneurysms. Copyright © 2013 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.

  5. Hybrid treatment of a true thyreocervical trunk aneurysm in a patient with Type B aortic dissection

    Directory of Open Access Journals (Sweden)

    Nikolaos G Baikoussis

    2016-01-01

    Full Text Available We would like to describe a case with a complex aortic disease treated in hybrid fashion. We present an interesting case of a 65-year-old man with a medical history of hypertension, hyperlipidemia, and coronary artery disease percutaneously treated. An acute Type B aortic dissection occurred and treated with the implantation of a stent-graft which occluded the left subclavian artery due to its extension to the aortic arch. This event required a carotid-subclavian artery bypass due to ischemia of the left arm. An aneurysm in the innominate artery also detected, was treated with another stent-graft implantation 3 months later. At 5-year follow-up, an aneurysm of the thyreocervical trunk was found while the stent-graft of the aorta was well-tolerated without endoleak and the carotid-subclavian graft was patent. The aneurysm was asymptomatic but considering the risk of spontaneous rupture of an aneurysm of this size, elective surgery was indicated. Because the aneurysm was very close to the brachiocephalic bifurcation, open surgical repair would require a sternotomy. The right common carotid artery and right subclavian artery were exposed. The thyrocervical trunk, right internal mammary artery and right vertebral artery were occluded by ligations to isolate the aneurysm. An 8-mm Dacron graft was anastomosed end-to-end to the distal part of subclavian artery. We would like through this case, discuss the role of the hybrid cardiovascular surgery to minimize the postoperative complications in complex cardiovascular pathology. We also discuss the international bibliography about the thyreocervical trunk aneurysm and the treatment options.

  6. Risk stratification of aortic aneurysms : Predictors of natural and clinical course

    NARCIS (Netherlands)

    Schlösser, F.J.V.

    2008-01-01

    Rupture of an abdominal aortic aneurysm (AAA) is a dramatic and often fatal process with an overall risk of mortality that ranges from 79 to 94%. The risk of AAA rupture increases strongly with increasing diameter of the AAA. Approximately 14,000 persons die each year due to aortic aneurysm rupture

  7. Evaluation of chemokine receptors (CCRs expression on peripheral blood T-lymphocyte subsets in patients with thoracic aortic aneurysm

    Directory of Open Access Journals (Sweden)

    Kaushal Kishore Tiwari

    2016-03-01

    Full Text Available Background & Objectives: Mortality and morbidity from the complication of aortic aneurysm remain very high. Aortic size index, which classify thoracic aortic aneurysm patients in three risk groups for aortic rupture prediction. Recent data support that aortic wall remodeling is a dynamic process with active involvement of the chronic inflammation and immunological system. Aim of our study is to evaluate expression level of chemokine receptors known to be involved in the T-cells migration and to correlate them with aortic size index. Materials & Methods: Total 20 patients undergoing surgery for ascending aortic aneurysm and/or aortic valve surgery were enrolled. Aortic size index was calculated. Preoperatively blood samples collected. By flowcytometry and dual parameter dot plot technology percentage of positivity of CCR5 on these T-cell subsets were quantified. Results: Mean age of the patients was 67±5.93 years. Majority of patients had hypertension. Mean ascending aortic diameter was 42.1±8.14 mm. Mean Aortic size Index was 22.21±3.38 mm/m2. A statistical significance has observed between aortic size index and the expression of CCR5 on total CD4 positive T-cells (p-0.0949, and between aortic size index and CCR5 expression on the total CD3 positive T-cells (p-0.0293. Significant correlation observed between ASI and CCR5 expression on the CD8+/CD3+ T-cell subset (p-0.0183. Similarly, strong positive relationship between ASI and the expression of CCR5 on the cytotoxic CD28-/CD4+ T-cell subset (p-0.0055. Activated state of cytotoxic CD28-/CD4+ cell also correlated with aortic size index (p-0.0668.Conclusion: We conclude that T-cell mediated cytotoxic mechanism driven by CCR5 play an important role in the pathophysiology of the thoracic aortic aneurysm.JCMS Nepal. 2016;12(1:23-27.

  8. Treatment of abdominal aortic aneurysm in nine countries 2005-2009: a vascunet report

    DEFF Research Database (Denmark)

    Mani, K; Lees, T; Beiles, B

    2011-01-01

    To study contemporary treatment and outcome of abdominal aortic aneurysm (AAA) repair in nine countries.......To study contemporary treatment and outcome of abdominal aortic aneurysm (AAA) repair in nine countries....

  9. Radiation Exposure in Endovascular Infra-Renal Aortic Aneurysm Repair and Factors that Influence It

    Directory of Open Access Journals (Sweden)

    Rui Machado

    Full Text Available Abstract Objective: The endovascular repair of aortic abdominal aneurysms exposes the patients and surgical team to ionizing radiation with risk of direct tissue damage and induction of gene mutation. This study aims to describe our standard of radiation exposure in endovascular aortic aneurysm repair and the factors that influence it. Methods: Retrospective analysis of a prospective database of patients with abdominal infra-renal aortic aneurysms submitted to endovascular repair. This study evaluated the radiation doses (dose area product (DAP, fluoroscopy durations and their relationships to the patients, aneurysms, and stent-graft characteristics. Results: This study included 127 patients with a mean age of 73 years. The mean DAP was 4.8 mGy.m2, and the fluoroscopy time was 21.8 minutes. Aortic bilateral iliac aneurysms, higher body mass index, aneurysms with diameters larger than 60 mm, necks with diameters larger than 28 mm, common iliac arteries with diameters larger than 20 mm, and neck angulations superior to 50 degrees were associated with an increased radiation dose. The number of anatomic risk factors present was associated with increased radiation exposure and fluoroscopy time, regardless of the anatomical risk factors. Conclusion: The radiation exposure during endovascular aortic aneurysm repair is significant (mean DAP 4.8 mGy.m2 with potential hazards to the surgical team and the patients. The anatomical characteristics of the aneurysm, patient characteristics, and the procedure's technical difficulty were all related to increased radiation exposure during endovascular aortic aneurysm repair procedures. Approximately 40% of radiation exposure can be explained by body mass index, neck angulation, aneurysm diameter, neck diameter, and aneurysm type.

  10. Administration of platelets to ruptured abdominal aortic aneurysm patients before open surgery

    DEFF Research Database (Denmark)

    Lunen, T B; Johansson, P I; Jensen, L P

    2018-01-01

    BACKGROUND: In patients undergoing open surgery for a ruptured abdominal aortic aneurysm (rAAA), survivors demonstrate a high platelet count, and proactive administration of platelets (and fresh frozen plasma) appears to influence mortality. OBJECTIVES: This trial investigated the effect of plate......BACKGROUND: In patients undergoing open surgery for a ruptured abdominal aortic aneurysm (rAAA), survivors demonstrate a high platelet count, and proactive administration of platelets (and fresh frozen plasma) appears to influence mortality. OBJECTIVES: This trial investigated the effect...... vs 39; P = 0·15) were similar in the two groups of patients. No adverse reactions to platelet administration were observed. In addition, length of stay in the intensive care unit was unaffected by intervention. CONCLUSIONS: For patients planned for open repair of a rAAA, we observed no significant...... effect of early administration of platelets with regard to post-operative complications and stay in the ICU or in hospital and also no significant effect on mortality....

  11. Acute Testicular Ischemia following Endovascular Abdominal Aortic Aneurysm Repair Identified in the Emergency Department

    Directory of Open Access Journals (Sweden)

    Nathan Finnerty

    2014-01-01

    Full Text Available Endovascular aneurysm repair (EVAR is perhaps the most widely utilized surgical procedure for patients with large abdominal aortic aneurysms. This procedure is minimally invasive and reduces inpatient hospitalization requirements. The case involves a 72-year-old male who presented to the emergency department with right testicular ischemia two days following EVAR. Given the minimal inpatient hospitalization associated with this procedure, emergency physicians are likely to encounter associated complications. Ischemic and thromboembolic events following EVAR are extremely rare but require prompt vascular surgery intervention to minimize morbidity and mortality.

  12. CD1d deficiency inhibits the development of abdominal aortic aneurysms in LDL receptor deficient mice

    NARCIS (Netherlands)

    van Puijvelde, Gijs H. M.; Foks, Amanda C.; van Bochove, Rosemarie E.; Bot, Ilze; Habets, Kim L. L.; de Jager, Saskia C.; ter Borg, Mariëtte N. D.; van Osch, Puck; Boon, Louis; Vos, Mariska; de Waard, Vivian; Kuiper, Johan

    2018-01-01

    An abdominal aortic aneurysm (AAA) is a dilatation of the abdominal aorta leading to serious complications and mostly to death. AAA development is associated with an accumulation of inflammatory cells in the aorta including NKT cells. An important factor in promoting the recruitment of these

  13. Investigation on the Regional Loss Factor and Its Anisotropy for Aortic Aneurysms

    Directory of Open Access Journals (Sweden)

    Nastaran Shahmansouri

    2016-10-01

    Full Text Available An aortic aneurysm is a lethal arterial disease that mainly occurs in the thoracic and abdominal regions of the aorta. Thoracic aortic aneurysms are prevalent in the root/ascending parts of the aorta and can lead to aortic rupture resulting in the sudden death of patients. Understanding the biomechanical and histopathological changes associated with ascending thoracic aortic aneurysms (ATAAs, this study investigates the mechanical properties of the aorta during strip-biaxial tensile cycles. The loss factor—defined as the ratio of dissipated energy to the energy absorbed during a tensile cycle—the incremental modulus, and their anisotropy indexes were compared with the media fiber compositions for aneurysmal (n = 26 and control (n = 4 human ascending aortas. The aneurysmal aortas were categorized into the aortas with bicuspid aortic valves (BAV and tricuspid aortic valves (TAV. The strip-biaxial loss factor correlates well with the diameter of the aortas with BAV and TAV (for the axial direction, respectively, R2 = 0.71, p = 0.0022 and R2 = 0.54, p = 0.0096. The loss factor increases significantly with patients’ age in the BAV group (for the axial direction: R2 = 0.45, p = 0.0164. The loss factor is isotropic for all TAV quadrants, whereas it is on average only isotropic in the anterior and outer curvature regions of the BAV group. The results suggest that loss factor may be a useful surrogate measure to describe the histopathology of aneurysmal tissue and to demonstrate the differences between ATAAs with the BAV and TAV.

  14. Aneurysm growth after late conversion of thoracic endovascular aortic repair

    Directory of Open Access Journals (Sweden)

    Hirofumi Kasahara

    2015-01-01

    Full Text Available A 69-year-old man underwent thoracic endovascular aortic repair of a descending aortic aneurysm. Three years later, he developed impending rupture due to aneurysmal expansion that included the proximal landing zone. Urgent open surgery was performed via lateral thoracotomy, and a Dacron graft was sewn to the previous stent graft distally with Teflon felt reinforcement. Postoperatively, four sequential computed tomography scans demonstrated that the aneurysm was additionally increasing in size probably due to continuous hematoma production, suggesting a possibility of endoleaks. This case demonstrates the importance of careful radiologic surveillance after endovascular repair, and also after partial open conversion.

  15. Primary congenital abdominal aortic aneurysm: a case report with perinatal serial follow-up imaging

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jung Im; Lee, Whal; Chung, Jin Wook; Park, Jae Hyung [Seoul National University College of Medicine, Seoul National University Hospital, Department of Radiology, Seoul (Korea); Kim, Sang Joon [Seoul National University College of Medicine, Seoul National University Hospital, Department of Surgery, Seoul (Korea); Seo, Jeong-Wook [Seoul National University College of Medicine, Seoul National University Hospital, Department of Pathology, Seoul (Korea)

    2008-11-15

    Abdominal aortic aneurysms in neonates and infants are rare and are usually associated with infection, vasculitis, connective tissue disorder, or iatrogenic trauma such as umbilical catheterization. An idiopathic congenital abdominal aortic aneurysm is the least common category and there are few descriptions of the imaging features. We present the antenatal and postnatal imaging findings of an idiopathic congenital abdominal aortic aneurysm including the findings on US, MRI and CT. (orig.)

  16. Aortocaval fistula – rare complication of ruptured abdominal aortic ...

    African Journals Online (AJOL)

    in 0.2 - 1.3% of patients with degenerative aortic aneurysms. 1 This paper describes the presentation and successful management of a patient with such an ACF. We wish to highlight the need to maintain a high index of suspicion for this condition in patients with abdominal aortic aneurysms (AAA), particularly if they present ...

  17. Combined Repair of Ascending Aortic Pseudoaneurysm and Abdominal Aortic Aneurysm in a Patient with Marfan Syndrome

    Science.gov (United States)

    Kokotsakis, John N.; Lioulias, Achilleas G.; Foroulis, Christophoros N.; Skouteli, Eleni Anna T.; Milonakis, Michael K.; Bastounis, Elias A.; Boulafendis, Dimitrios G.

    2003-01-01

    Pseudoaneurysms of the ascending aorta after the original inclusion/wrap technique of the Bentall procedure present a difficult surgical management problem and are associated with substantial morbidity and mortality. Patients with Marfan syndrome frequently develop aneurysms and dissections that involve multiple aortic segments. We present the case of a Marfan patient who successfully underwent repair of a giant ascending aortic pseudoaneurysm and concomitant repair of an abdominal aortic aneurysm. An aggressive surgical strategy followed by life-long cardiovascular monitoring is warranted in order to prolong the survival of these patients. (Tex Heart Inst J 2003;30:233–5) PMID:12959210

  18. Concepts to optimize stent-grafting of abdominal aortic aneurysms based on results of experimental studies

    International Nuclear Information System (INIS)

    Chavan, A.; Kirchhoff, T.; Baus, S.; Galanski, M.; Pichlmaier, M.

    2001-01-01

    Purpose. In the endoluminal therapy of abdominal aortic aneurysms, a short proximal aneurysm neck, endoleaks and the large size and stiffness of the introducer systems are responsible for many of the complications and sub-optimal outcomes. The purpose of the present review article is to to suggest strategies to minimize these complications based on the results of experimental studies in animals. Material and methods. After implanting various types of stents across the renal artery origins, the functional and morphological changes in the kidneys and renal vessels were studied by various authors. In order to prevent progressive widening of the proximal aneurysmal neck and graft dislocation, Sonesson et al. performed a laparoscopic banding around the proximal neck in pigs. To study the effects of endoleaks, Marty, Schurink and Pitton carried out pressure measurements in experimental aneurysms with and without endoleaks. Sakaguchi and Pavcnik developed the 'Twin-tube endografts' (TTEG) and the 'Bifurcated drum occluder endografts' (BDOEG) and tested them in dogs. Results. Up to 3 months after suprarenal stent placement, Chavan et al. detected no significant fall in the mean inulin clearance in sheep (140±46 ml/min before, 137±58 ml/min after). Nasim et al. and Malina et al. reported similar observations with respect to renal function. Suprarenal fixation may result in isolated thrombotic occlusions of the renal arteries and microinfarcts in the kidneys. Mean aortic diameters at the level of banding were significantly smaller in the animals with aortic banding as opposed to those in the control group without banding (8 mm vs 11 mm, p=0.004). The banding caused a secure proximal fixation of the stent-graft. Persistent endoleaks resulted in significantly higher intraaneurysmal pressures. Although the TTEG and the BDOEG stent-grafts required smaller sheaths, occlusions were observed in 8% (TTEG) and 60% (BDOEG) of the graft limbs. (orig.) [de

  19. Aortic elongation in aortic aneurysm and dissection: the Tübingen Aortic Pathoanatomy (TAIPAN) project.

    Science.gov (United States)

    Krüger, Tobias; Sandoval Boburg, Rodrigo; Lescan, Mario; Oikonomou, Alexandre; Schneider, Wilke; Vöhringer, Luise; Lausberg, Henning; Bamberg, Fabian; Blumenstock, Gunnar; Schlensak, Christian

    2018-01-24

    To study the lengths and diameters of aortic segments in healthy and diseased aortas and to assess the role of aortic elongation in Type A aortic dissection (TAD) prediction. Ectasia and aneurysm were defined by ascending aorta diameters of 45-54 mm and ≥55 mm, respectively. Computed tomography angiography studies of 256 healthy, 102 ectasia, 38 aneurysm, 17 pre-TAD and 166 TAD aortas were analysed using curved multiplanar reformats. The study groups were structurally equal. The diameter of the ascending aorta was 35 mm in the control group and was larger (P TAD (43 mm) and TAD (56 mm) groups. The length of the ascending aorta from the aortic annulus to the brachiocephalic trunk was 92 mm in the control group, 113 mm in the ectasia group, 120 mm in the aneurysm group and 111 mm and 118 mm in the pre-TAD and TAD groups (all P TAD group and 48% of the TAD group. The correlation between the diameter and the length of the ascending aorta was r = 0.752; therefore, both parameters must be examined separately. A score considering both parameters identified 23.5% of pre-TAD patients, significantly more than the diameter alone, and 31.4% of ectasia aortas were elongated. Patients with ectatic (45-54 mm diameter) and elongated (≥120 mm) ascending aortas represent a high-risk subpopulation for TAD. © The Author(s) 2018. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.

  20. Ex vivo repair of renal artery aneurysm associated with surgical treatment of abdominal aortic aneurysm

    Directory of Open Access Journals (Sweden)

    Kostić Dušan M.

    2004-01-01

    Full Text Available INTRODUCTION Renal artery aneurysms is relatively uncommon with reported incidence ranges from 0.3% to 1%. However, considering all visceral artery aneurysms the percentage of renal artery aneurysms is relatively high between 15-25%. The distal forms of renal artery aneurysms sometimes require "ex vivo" reconstruction and kidney autotransplantation. CASE REPORT A 75-year-old male presented with the right abdominal and back pain. He suffered from a long history of arterial hypertension and chronic renal failure over the last few months (urea blood = 19.8 mmol/l; creatinine = 198 mmol/l. Duplex ultrasonography showed abdominal aortic aneurysm. Subsequent translumbarangiography revealed juxtarenal abdominal aortic aneurysm associated with distal right renal artery aneurysm. The operation was performed under combined thoracic epidural analgesia and general anesthesia using transperitoneal approach. After the laparotomy, the ascending colon was mobilized and reflected medially followed by Kocher maneuver. The result was visualization of the anterior aspect of the right kidney, the collecting system, ureter as well as the right renal vein and artery with large saccular aneurysm located distally. After mobilization of the renal vessels and careful dissection of the ureter, the kidney was explanted. The operation was continued by two surgical teams. The first team performed abdominal aortic aneurysm resection and reconstruction with bifurcated Dacron graft. The second team performed ex vivo reparation of renal artery aneurysm. All time during the explantation, the kidney was perfused by Collins' solution. The saccular right renal artery aneurysm 4 cm in diameter was located at the kidney hilus at the first bifurcation. Three branches originated from the aneurysm. The aneurysm was resected completely. The longest and widest of three branches arising from the aneurysmal sac was end-to-end anastomized with 6 mm PTFE graft. After this intervention, one of

  1. Idiopathic subvalvular aortic aneurysm masquerading as acute coronary syndrome.

    Science.gov (United States)

    Natarajan, Balaji; Ramanathan, Sundar; Subramaniam, Natarajan; Janardhanan, Rajesh

    2016-09-02

    Subvalvular aneurysms are the least common type of left ventricular (LV) aneurysms and can be fatal. Subaortic LV aneurysms are much rarer than submitral LV aneurysms and mostly reported in infancy. They can be congenital or acquired secondary to infections, cardiac surgery or trauma. Here, we report a unique presentation of a large, idiopathic subaortic aneurysm in an adult masquerading as an acute coronary syndrome. Diagnosis was made with the help of a CT aortography. Aneurysm was surgically resected with good results. This case highlights the clinical presentation and management of subaortic aneurysms, an important differential for congenital aortic malformations. 2016 BMJ Publishing Group Ltd.

  2. Fenestrated endovascular aortic aneurysm repair using physician-modified endovascular grafts versus company-manufactured devices.

    Science.gov (United States)

    Dossabhoy, Shernaz S; Simons, Jessica P; Flahive, Julie M; Aiello, Francesco A; Sheth, Parth; Arous, Edward J; Messina, Louis M; Schanzer, Andres

    2017-12-07

    Fenestrated endografts are customized, patient-specific endovascular devices with potential to reduce morbidity and mortality of complex aortic aneurysm repair. With approval from the U.S. Food and Drug Administration, our center began performing fenestrated endovascular aneurysm repair through a physician-sponsored investigational device exemption (IDE #G130210), using both physician-modified endografts (PMEGs) and company-manufactured devices (CMDs). Because these techniques are associated with specific advantages and disadvantages, we sought to investigate differences in outcomes between PMEG and CMD cases. A single-institution retrospective review of all fenestrated endovascular aneurysm repairs was performed. The cohort was analyzed by device type (PMEG or CMD) after matching of cases on the basis of (1) number of target vessels intended for treatment, (2) extent of aneurysm, (3) aneurysm diameter, (4) device configuration, and (5) date of operation. Outcomes of ruptures, common iliac artery aneurysms, and aortic arch aneurysms were excluded. Demographics, operative details, perioperative complications, length of stay, and reinterventions were compared. For patients with >1 year of follow-up time, survival, type I or type III endoleak rate, target artery patency, and reintervention rate were estimated using the Kaplan-Meier method. Between November 30, 2010, and July 30, 2016, 82 patients were identified and matched. The cohort included 41 PMEG and 41 CMD patients who underwent repair of 38 juxtarenal (PMEG, 17; CMD, 21; P = .38), 14 pararenal (PMEG, 6; CMD, 8; P = .56), and 30 thoracoabdominal type I to type IV (PMEG, 18; CMD, 12; P = .17) aneurysms. There were significant differences in presentation requiring urgent aneurysm repair (PMEG, 9; CMD, 0; P = .002), total fluoroscopy time (PMEG, 76 minutes; CMD, 61 minutes; P = .02), volume of contrast material used (PMEG, 88 mL; CMD, 70 mL; P = .02), in-operating room to out-of-operating room time

  3. Identification of peroxiredoxin-1 as a novel biomarker of abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Martinez-Pinna, Roxana; Ramos-Mozo, Priscila; Madrigal-Matute, Julio

    2011-01-01

    In the search of novel biomarkers of abdominal aortic aneurysm (AAA) progression, proteins released by intraluminal thrombus (ILT) were analyzed by a differential proteomic approach.......In the search of novel biomarkers of abdominal aortic aneurysm (AAA) progression, proteins released by intraluminal thrombus (ILT) were analyzed by a differential proteomic approach....

  4. Endovascular treatment of false-aneurysm ten years after dacron patch aortoplasty for coarctation of the aortic isthmus. Report of a case.

    Science.gov (United States)

    Illuminati, Giulio; Pacilè, Maria Antonietta; Palumbo, Piergaspare; Salvatori, Filippo Maria; Vietri, Francesco

    2013-01-01

    False aneurysm degeneration is a known complication of patch aortoplasty for coarctation of the aortic isthmus. Open surgical treatment consists of prosthetic graft repair of the involved aorta, often requires circulatory arrest to achieve a safe proximal aortic control and perform proximal anastomosis, and finally is associated with substantial perioperative morbidity. Endografting of the diseased aorta is a valuable alternative to open repair, when feasible, with good short and long term results. We now report one more case of false aneurysm ten years after Dacron patch aortoplasty for isthmic coarctation in a 26-year-old woman, successfully treated by endovascular repair via the left common iliac artery, and a complete exclusion of the aneurysm at two year follow-up.

  5. Association of aortic and main left coronary aneurysms with severe aortic insufficiency in Takayasu’s arteritis

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    Marcelo Ferraz de Freitas

    2011-04-01

    Full Text Available Takayasu’s arteritis is a granulomatous vasculitis of unknown etiology that affects mainly the aorta and its branches. As a result of intimal fibroproliferation, segmental stenosis, occlusion, dilatation, and aneurysmal formation of the involved vessels may develop. It is an uncommon disease and usually affects young Asian female patients during the second and third decades of life. Coronary arteries are exceptionally affected and coronary aneurysm formation is a very rare finding. We describe a case of a previously healthy 26-year-old Caucasian female whose Takayasu’s arteritis presented as a previously undescribed association of aortic and main left coronary aneurysms with severe aortic insufficiency.

  6. Association of aortic and main left coronary aneurysms with severe aortic insufficiency in Takayasu’s arteritis

    Science.gov (United States)

    Schafranski, Marcelo Derbli; Ferraz de Freitas, Marcelo; Valladão de Carvalho, Marcelo

    2011-01-01

    Takayasu’s arteritis is a granulomatous vasculitis of unknown etiology that affects mainly the aorta and its branches. As a result of intimal fibroproliferation, segmental stenosis, occlusion, dilatation, and aneurysmal formation of the involved vessels may develop. It is an uncommon disease and usually affects young Asian female patients during the second and third decades of life. Coronary arteries are exceptionally affected and coronary aneurysm formation is a very rare finding. We describe a case of a previously healthy 26-year-old Caucasian female whose Takayasu’s arteritis presented as a previously undescribed association of aortic and main left coronary aneurysms with severe aortic insufficiency. PMID:24765288

  7. Successful Aortic Banding for Type IA Endoleak Due to Neck Dilatation after Endovascular Abdominal Aortic Aneurysm Repair: Case Report.

    Science.gov (United States)

    Tashima, Yasushi; Tamai, Koichi; Shirasugi, Takehiro; Sato, Kenichiro; Yamamoto, Takahiro; Imamura, Yusuke; Yamaguchi, Atsushi; Adachi, Hideo; Kobinata, Toshiyuki

    2017-09-25

    A 69-year-old man with a type IA endoleak that developed approximately 21 months after endovascular abdominal aortic aneurysm repair (EVAR) of a 46 mm diameter aneurysm was referred to our department. He had impaired renal function, Parkinson's disease, and previous cerebral infarction. Computed tomography angiography showed a type IA endoleak with neck dilatation and that the aneurysm had grown to 60 mm in diameter. We decided to perform aortic banding. The type IA endoleak disappeared after banding and the patient was discharged on postoperative day 10. Aortic banding may be effective for type IA endoleak after EVAR and less invasive for high-risk patients in particular.

  8. Multiple Re-entry Closures After TEVAR for Ruptured Chronic Post-dissection Thoraco-abdominal Aortic Aneurysm

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    R. Kinoshita

    Full Text Available Introduction: Although thoracic endovascular aortic repair (TEVAR has become a promising treatment for complicated acute type B dissection, its role in treating chronic post-dissection thoraco-abdominal aortic aneurysm (TAA is still limited owing to persistent retrograde flow into the false lumen (FL through abdominal or iliac re-entry tears. Report: A case of chronic post-dissection TAA treatment, in which a dilated descending FL ruptured into the left thorax, is described. The primary entry tear was closed by emergency TEVAR and multiple abdominal re-entries were closed by EVAR. In addition, major re-entries at the detached right renal artery and iliac bifurcation were closed using covered stents. To close re-entries as far as possible, EVAR was carried out using the chimney technique, and additional aortic extenders were placed above the coeliac artery. A few re-entries remained, but complete FL thrombosis of the rupture site was achieved. Follow-up computed tomography showed significant shrinkage of the FL. Discussion: In treating post-dissection TAA, entry closure by TEVAR is sometimes insufficient, owing to persistent retrograde flow into the FL from abdominal or iliac re-entries. Adjunctive techniques are needed to close these distal re-entries to obtain complete FL exclusion, especially in rupture cases. Recently, encouraging results of complete coverage of the thoraco-abdominal aorta with fenestrated or branched endografts have been reported; however, the widespread employment of such techniques appears to be limited owing to technical difficulties. The present method with multiple re-entry closures using off the shelf and immediately available devices is an alternative for the endovascular treatment of post-dissection TAA, especially in the emergency setting. Keywords: Aortic dissection, Ruptured aortic aneurysm, Post-dissection thoracoabdominal aortic aneurysm, Endovascular aortic repair, Reentry closure, Endovascular procedures

  9. Trans-aortic repair of a sinus of valsalva aneurysm.

    Science.gov (United States)

    Kapetanakis, Emmanouil I; Ieromonachos, Constantinos; Stavridis, George; Antoniou, Theofani A; Athanassopoulos, George; Cokkinos, Dennis V; Alivizatos, Peter A

    2007-01-01

    Sinus of Valsalva aneurysms are rare and vary in their presentation and approach of surgical repair. We report on a case of isolated right sinus of Valsalva aneurysm that underwent successful excision and patch repair with individual sutures placed through the annulus of the aortic valve.

  10. Natural history of abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Perko, M J; Schroeder, T V; Olsen, P S

    1993-01-01

    During a 10-year period in which 735 patients presented with abdominal aortic aneurysms to our clinic, 63 were not offered operative treatment. The primary reason for choosing conservative treatment was concomitant diseases that increased the risk of operation. After 2 years of followup, half...

  11. Endovascular Therapy of Ruptured Abdominal Aortic Aneurysm: Mid- and Long-Term Results

    International Nuclear Information System (INIS)

    Kubin, Klaus; Sodeck, Gottfried H.; Teufelsbauer, H.; Nowatschka, Bernd; Kretschmer, Georg; Lammer, Johannes; Schoder, Maria

    2008-01-01

    As an alternative to open aneurysm repair, emergency endovascular aortic repair (EVAR) has emerged as a promising technique for ruptured abdominal aortic aneurysm (rAAA) within the last decade. The aim of this retrospective study is to present early and late outcomes of patients treated with EVAR for rAAA. Twenty-two patients (5 women, 17 men; mean age, 74 years) underwent EVAR for rAAA between November 2000 and April 2006. Diagnostic multislice computed tomography angiography was performed prior to stent-graft repair to evaluate anatomical characteristics and for follow-up examinations. Periprocedural patient characteristics and technical settings were evaluated. Mortality rates, hospital stay, and early and late complications, within a mean follow-up time of 744 ± 480 days, were also assessed. Eight of 22 patients were hemodynamically unstable at admission. Stent-graft insertion was successful in all patients. The total early complication rate was 54%, resulting in a 30-day mortality rate of 23%. The median intensive care unit stay was 2 days (range, 2-48 days), and the median hospital stay was 16 days (range, 9-210 days). During the follow-up period, three patients suffered from stent-graft-related complications. The overall mortality rate in our study group was 36%. EVAR is an acceptable, minimally invasive treatment option in patients with acute rAAA, independent of the patient's general condition. Short- and long-term outcomes are definitely comparable to those with open surgical repair procedures

  12. Plasma levels of plasmin-antiplasmin-complexes are predictive for small abdominal aortic aneurysms expanding to operation-recommendable sizes

    DEFF Research Database (Denmark)

    Lindholt, Jes Sanddal; Jørgensen, B; Fasting, H

    2001-01-01

    Three proteolytic systems seem involved in the aneurysmal degradation of the aortic wall. Plasmin is a common activator of the systems and could thus be predictive for the progression of abdominal aortic aneurysms (AAAs).......Three proteolytic systems seem involved in the aneurysmal degradation of the aortic wall. Plasmin is a common activator of the systems and could thus be predictive for the progression of abdominal aortic aneurysms (AAAs)....

  13. Critical role of mast cell chymase in mouse abdominal aortic aneurysm formation

    DEFF Research Database (Denmark)

    Sun, J; Zhang, J; Lindholt, Jes S.

    2009-01-01

    Mast cell chymase may participate in the pathogenesis of human abdominal aortic aneurysm (AAA), yet a direct contribution of this serine protease to AAA formation remains unknown.......Mast cell chymase may participate in the pathogenesis of human abdominal aortic aneurysm (AAA), yet a direct contribution of this serine protease to AAA formation remains unknown....

  14. Rupture of an abdominal aortic aneurysm in a young man with Marfan Syndrome

    DEFF Research Database (Denmark)

    Pedersen, Maria Weinkouff; Huynh, Khiem Dinh; Baandrup, Ulrik Thorngren

    2018-01-01

    Abdominal aortic aneurysms are very rare in Marfan syndrome. We present a case with a young non-smoking and normotensive male with Marfan syndrome, who developed an infrarenal abdominal aortic aneurysm that presented with rupture to the retroperitoneal cavity causing life-threatening bleeding shock...

  15. Hybrid repair of a very late, post-aortic coarctation surgery thoracic aneurysm: a case report

    Directory of Open Access Journals (Sweden)

    Tilea Ioan

    2012-08-01

    Full Text Available Abstract Introduction Local aneurysms after surgical repair of coarctation of the aorta occur mainly in patients surgically treated by Dacron patch plasty during adulthood. The management of these patients is always problematic, with frequent complications and increased mortality rates. Percutaneous stent-graft implantation avoids the need for surgical reintervention. Case presentation We report a case involving the hybrid treatment by stent-graft implantation and transposition of the left subclavian artery to the left common carotid artery of an aneurysmal dilatation of the thoracic aorta that occurred in a 64-year-old Caucasian man, operated on almost 40 years earlier with a Dacron patch plasty for aortic coarctation. Our patient presented to our facility for evaluation with back pain and shortness of breath after minimal physical effort. A physical examination revealed stony dullness to percussion of the left posterior thorax, with no other abnormalities. The results of chest radiography, followed by contrast-enhanced computed tomography and aortography, led to a diagnosis of giant aortic thoracic aneurysm. Successful treatment of the aneurysm was achieved by percutaneous stent-graft implantation combined with transposition of the left subclavian artery to the left common carotid artery. His post-procedural recovery was uneventful. Three months after the procedure, computed tomography showed complete thrombosis of the excluded aneurysm, without any clinical signs of left lower limb ischemia or new onset neurological abnormalities. Conclusions Our patient’s case illustrates the clinical outcomes of surgical interventions for aortic coarctation. However, the very late appearance of a local aneurysm is rather unusual. Management of such cases is always difficult. The decision-making should be multidisciplinary. A hybrid approach was considered the best solution for our patient.

  16. An extracardiac unruptured right sinus of valsalva aneurysm complicated with atherothrombosis

    Directory of Open Access Journals (Sweden)

    Jun Zhang

    2016-04-01

    Full Text Available We present quite a rare case of extracardiac unruptured right sinus of valsalva aneurysm (SVA complicated with atherothrombosis in a young adult man. A 35-year-old male with a giant unruptured SVA arising from the right coronary sinus (RCS with extracardiac protrusion was diagnosed by echocardiography. Contrast-enhanced computed tomography (CT revealed a huge calcified aneurysm with mural thrombi originating from the aortic root, and about 80% stenosis at the initial segment of the right coronary artery (RCA. Intraoperative exploration demonstrated a giant unruptured aneurysm arising from the RCS. Different from other SVAs reported before, this aneurismal wall appeared thick and atheromatous-like. In this aneurysm, there was a small localized intima tearing and mural thrombosis, and the orifice of the RCA was almost blocked. This patient underwent surgical patch repair to prevent aneurysm rupture and coronary artery bypass grafting for RCA revascularization. In conclusion, the pathological examination demonstrated marked foam cells, inflammatory cells, and thrombosis in the aneurismal wall. Learning points: • Echocardiographic characteristics of sinus of valsalva aneurysm (SVA. • Diagnostic evaluation of extracardiac unruptured SVA. • Pathology of rare SVA.

  17. 2D MR angiography of the aortic aneurysm

    International Nuclear Information System (INIS)

    Amanuma, Makoto; Hasegawa, Makoto; Watabe, Tsuneya; Heshiki, Atsuko

    1992-01-01

    2D time-of-flight MR angiography was performed in 6 cases of thoracic aortic aneurysm. Oblique saturation pulses were used to suppress the signals of the pulmonary artery and SVC, providing excellent selective MR aortograms. Three dimensional extension of the aneurysm and its relation with cervical branches were easily assessed. It could be possible to replace invasive aortography by this technique. (author)

  18. Infectious or Noninfectious? Ruptured, Thrombosed Inflammatory Aortic Aneurysm with Spondylolysis

    Energy Technology Data Exchange (ETDEWEB)

    Stefanczyk, Ludomir; Elgalal, Marcin, E-mail: telgalal@yahoo.co.uk [Medical University of Lodz, Department of Radiology and Diagnostic Imaging (Poland); Papiewski, Andrzej [Medical University of Lodz, Department of Gastroenterological Surgery (Poland); Szubert, Wojciech [Medical University of Lodz, Department of Radiology and Diagnostic Imaging (Poland); Szopinski, Piotr [Institute of Hematology and Transfusion Medicine, Clinic of Vascular Surgery (Poland)

    2013-06-15

    Osteolysis of vertebrae due to inflammatory aortic aneurysm is rarely observed. However, it is estimated that up to 10 % of infectious aneurysms coexist with bone tissue destruction, most commonly the vertebrae. Inflammatory aneurysms with no identified infection factor, along with infiltration of adjacent muscle and in particular extensive destruction of bone tissue have rarely been described in the literature. A case of inflammatory aneurysm with posterior wall rupture and inflammatory infiltration of the iliopsoas muscle and spine, together with extensive vertebral body destruction, is presented. The aneurysm was successfully treated with endovascular aneurysm repair EVAR.

  19. Infectious or Noninfectious? Ruptured, Thrombosed Inflammatory Aortic Aneurysm with Spondylolysis

    International Nuclear Information System (INIS)

    Stefańczyk, Ludomir; Elgalal, Marcin; Papiewski, Andrzej; Szubert, Wojciech; Szopiński, Piotr

    2013-01-01

    Osteolysis of vertebrae due to inflammatory aortic aneurysm is rarely observed. However, it is estimated that up to 10 % of infectious aneurysms coexist with bone tissue destruction, most commonly the vertebrae. Inflammatory aneurysms with no identified infection factor, along with infiltration of adjacent muscle and in particular extensive destruction of bone tissue have rarely been described in the literature. A case of inflammatory aneurysm with posterior wall rupture and inflammatory infiltration of the iliopsoas muscle and spine, together with extensive vertebral body destruction, is presented. The aneurysm was successfully treated with endovascular aneurysm repair EVAR.

  20. Male gender and smoking are related to single, but not to multiple, human aortic aneurysms.

    Science.gov (United States)

    Gutierrez, Paulo S; Leite, Thiago N P; Mangione, Fernanda M

    2015-01-01

    There is scanty information concerning multiple aortic aneurysms. Thus, we verified if clinical or pathological characteristics are different in patients with multiple (two or more) aortic aneurysms in comparison with those with only one. We selected at the necropsy files of the Heart Institute, São Paulo University School of Medicine, the last 100 cases with aortic aneurysms, comparing between the two groups: sex, age, presence of systemic arterial hypertension, diabetes, dyslipedemia, history of smoking habit, cause of the aneurysm, cause of death, and if the diagnosis was reached during life. Age was analysed by Mann-Whitney test, and the other variables by chi-square or Fisher's exact test. Multiple aneurysms corresponded to 14% of cases. The proportion of women among patients with multiple aneurysms was higher than among those with single aneurysm (64.3% versus 20.9%, P<.01), even if only cases with atherosclerosis were taken into consideration (women among multiple-6/10, 60.0%; among single-14/70, 20.0%; P=.01). Smoking was less reported in cases with multiple (4/14, 28.6%) than with single aneurysm (53/86, 61.6%; P=.04); considering cases with atherosclerosis, such difference decreases (40.0% of multiple versus 68.6% of single, P=.09). although atherosclerosis is present in most cases of both single and multiple aortic aneurysms, male gender and smoking, considered highly influential in such lesions, are less frequent in patients with multiple than in patients with single aneurysms. Thus mechanisms underlying multiple aortic aneurysms are probably different from those related to single, more common aneurysms. Copyright © 2015 Elsevier Inc. All rights reserved.

  1. Overexpression of interleukin-1β and interferon-γ in type I thoracic aortic dissections and ascending thoracic aortic aneurysms: possible correlation with matrix metalloproteinase-9 expression and apoptosis of aortic media cells.

    Science.gov (United States)

    Zhang, Lei; Liao, Ming-fang; Tian, Lei; Zou, Si-li; Lu, Qing-sheng; Bao, Jun-min; Pei, Yi-fei; Jing, Zai-ping

    2011-07-01

    To examine the expression of interleukin-1β and interferon-γ and their possible roles in aortic dissections and aneurysms. Aortic specimens were obtained from patients with type I thoracic aortic dissection, ascending thoracic aortic aneurysms, and control organ donors. The expression of interleukin-1β, interferon-γ, matrix metalloproteinase-9, and signal transduction factors phospho-p38 and phosphorylated c-jun N-terminal kinase (phospho-JNK) were detected by real time reverse transcription-polymerase chain reaction (real time RT-PCR), Western blot, and immunohistochemistry, respectively. Terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) staining was performed to detect apoptosis of media cells. The correlation of these factors and apoptosis was also studied. Apoptosis in the media of thoracic aortic dissection and in ascending thoracic aortic aneurysms was dramatically higher than in the control group. The expression of interleukin-1β gradually increased from the control group, thoracic aortic dissection to ascending thoracic aortic aneurysms (p matrix metalloproteinase-9 was significantly increased in the media of thoracic aortic dissection and ascending thoracic aortic aneurysms compared with the control group (p correlations between interleukin-1β versus matrix metalloproteinase-9, interleukin-1β versus phospho-p38 in thoracic aortic dissection (p matrix metalloproteinase-9, interferon-γ versus phospho-JNK, interferon-γ versus apoptosis, and interleukin-1β versus apoptosis in ascending thoracic aortic aneurysms (p = 0.02, 0.02, p matrix metalloproteinase-9 and the apoptosis of media cells in humans. Copyright © 2010 European Association for Cardio-Thoracic Surgery. Published by Elsevier B.V. All rights reserved.

  2. Dissecting aortic aneurysm in maintenance hemodialysis patients

    Directory of Open Access Journals (Sweden)

    Ounissi M

    2009-01-01

    Full Text Available The dissecting aortic aneurysm (DAA is a rare pathology that may result in fatal outcome. We report follow up of three cases of DAA patients undergoing maintenance hemo-dialysis who were managed conservatively.

  3. Aneurysm-Specific miR-221 and miR-146a Participates in Human Thoracic and Abdominal Aortic Aneurysms

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    Premakumari Venkatesh

    2017-04-01

    Full Text Available Altered microRNA expression is implicated in cardiovascular diseases. Our objective was to determine microRNA signatures in thoracic aortic aneurysms (TAAs and abdominal aortic aneurysms (AAAs compared with control non-aneurysmal aortic specimens. We evaluated the expression of fifteen selected microRNA in human TAA and AAA operative specimens compared to controls. We observed significant upregulation of miR-221 and downregulation of miR-1 and -133 in TAA specimens. In contrast, upregulation of miR-146a and downregulation of miR-145 and -331-3p were found only for AAA specimens. Upregulation of miR-126 and -486-5p and downregulation of miR-30c-2*, -155, and -204 were observed in specimens of TAAs and AAAs. The data reveal microRNA expression signatures unique to aneurysm location and common to both thoracic and abdominal pathologies. Thus, changes in miR-1, -29a, -133a, and -221 are involved in TAAs and miR-145, -146, and -331-3p impact AAAs. This work validates prior studies on microRNA expression in aneurysmal diseases.

  4. Long-term results after repair of ruptured and non-ruptured abdominal aortic aneurysm

    Directory of Open Access Journals (Sweden)

    Kuzmanović Ilija B.

    2004-01-01

    Full Text Available INTRODUCTION Abdominal aortic aneurysm can be repaired by elective procedure while asymptomatic, or immediately when it is complicated - mostly due to rupture. Treating abdominal aneurysm electively, before it becomes urgent, has medical and economical reason. Today, the first month mortality after elective operations of the abdominal aorta aneurysm is less than 3%; on the other hand, significant mortality (25%-70% has been recorded in patients operated immediately because of rupture of the abdominal aneurysm. In addition, the costs of elective surgical treatment are significantly lower. OBJECTIVE The objective of this study is to compare long-term survival of patients that underwent elective or immediate repair of abdominal aortic aneurysm (due to rupture, and to find out the factors influencing the long-term survival of these patients. MATERIAL AND METHODS Through retrospective review of prospectively collected data of the Institute for Cardiovascular Diseases of Clinical Center of Serbia, Belgrade, 56 patients that had elective surgery and 35 patients that underwent urgent operation due to rupture of abdominal aneurysm were followed up. Only the patients that survived 30 postoperative days were included in this review, and were followed up (ranging from 2 to 126 months. Electively operated patients were followed during 58.82 months on the average (range 7 to 122, and urgently operated were followed over 52.26 months (range 2 to 126. There was no significant difference of the length of postoperative follow-up between these two groups. RESULTS During this period, out of electively operated and immediately operated patients, 27 and 22 cases died, respectively. There was no significant difference (p>0,05a of long-term survival between these two groups. Obesity and early postoperative complications significantly decreased long-term survival of both electively and immediately operated patients. Graft infection, ventral hernia, aneurysm of

  5. Open Versus Endovascular Stent Graft Repair of Abdominal Aortic Aneurysms

    DEFF Research Database (Denmark)

    Firwana, Belal; Ferwana, Mazen; Hasan, Rim

    2014-01-01

    We performed an analysis to assess the need for conducting additional randomized controlled trials (RCTs) comparing open and endovascular aneurysm repair (EVAR) for abdominal aortic aneurysm (AAA). Trial sequential analysis (TSA) is a statistical methodology that can calculate the required inform...

  6. Endovascular Treatment of Late Thoracic Aortic Aneurysms after Surgical Repair of Congenital Aortic Coarctation in Childhood

    Science.gov (United States)

    Juszkat, Robert; Perek, Bartlomiej; Zabicki, Bartosz; Trojnarska, Olga; Jemielity, Marek; Staniszewski, Ryszard; Smoczyk, Wiesław; Pukacki, Fryderyk

    2013-01-01

    Background In some patients, local surgery-related complications are diagnosed many years after surgery for aortic coarctation. The purposes of this study were: (1) to systematically evaluate asymptomatic adults after Dacron patch repair in childhood, (2) to estimate the formation rate of secondary thoracic aortic aneurysms (TAAs) and (3) to assess outcomes after intravascular treatment for TAAs. Methods This study involved 37 asymptomatic patients (26 female and 11 male) who underwent surgical repair of aortic coarctation in the childhood. After they had reached adolescence, patients with secondary TAAs were referred to endovascular repair. Results Follow-up studies revealed TAA in seven cases (19%) (including six with the gothic type of the aortic arch) and mild recoarctation in other six (16%). Six of the TAA patients were treated with stentgrafts, but one refused to undergo an endovascular procedure. In three cases, stengrafts covered the left subclavian artery (LSA), in another the graft was implanted distally to the LSA. In two individuals, elective hybrid procedures were performed with surgical bypass to the supraaortic arteries followed by stengraft implantation. All subjects survived the secondary procedures. One patient developed type Ia endoleak after stentgraft implantation that was eventually treated with a debranching procedure. Conclusions The long-term course of clinically asymptomatic patients after coarctation patch repair is not uncommonly complicated by formation of TAAs (particularly in individuals with the gothic pattern of the aortic arch) that can be treated effectively with stentgrafts. However, in some patients hybrid procedures may be necessary. PMID:24386233

  7. Complications of endovascular treatment of cerebral aneurysms

    Energy Technology Data Exchange (ETDEWEB)

    Orrù, Emanuele, E-mail: surgeon.ema@gmail.com [Neuroradiology Department, Padua University Hospital, Via Giustiniani 2, Padua 35128 (Italy); Roccatagliata, Luca, E-mail: lroccatagliata@neurologia.unige.it [Neuroradiology Department, IRCCS San Martino University Hospital and IST, Largo Rosanna Benzi 10, Genoa 16132 (Italy); Department of Health Sciences (DISSAL), University of Genoa (Italy); Cester, Giacomo, E-mail: giacomo.cester@sanita.padova.it [Neuroradiology Department, Padua University Hospital, Via Giustiniani 2, Padua 35128 (Italy); Causin, Francesco, E-mail: francesco.causin@sanita.padova.it [Neuroradiology Department, Padua University Hospital, Via Giustiniani 2, Padua 35128 (Italy); Castellan, Lucio, E-mail: lucio.castellan@hsanmartino.it [Neuroradiology Department, IRCCS San Martino University Hospital and IST, Largo Rosanna Benzi 10, Genoa 16132 (Italy)

    2013-10-01

    The number of neuroendovascular treatments of both ruptured and unruptured aneurysms has increased substantially in the last two decades. Complications of endovascular treatments of cerebral aneurysms are rare but can potentially lead to acute worsening of the neurological status, to new neurological deficits or death. Some of the possible complications, such as vascular access site complications or systemic side effects associated with contrast medium (e.g. contrast medium allergy, contrast induced nephropathy) can also be encountered in diagnostic angiography. The most common complications of endovascular treatment of cerebral aneurysms are related to acute thromboembolic events and perforation of the aneurysm. Overall, the reported rate of thromboembolic complications ranges between 4.7% and 12.5% while the rate of intraprocedural rupture of cerebral aneurysms is about 0.7% in patients with unruptured aneurysms and about 4.1% in patients with previously ruptured aneurysms. Thromboembolic and hemorrhagic complications may occur during different phases of endovascular procedures and are related to different technical, clinical and anatomic reasons. A thorough knowledge of the different aspects of these complications can reduce the risk of their occurrence and minimize their clinical sequelae. A deep understanding of complications and of their management is thus part of the best standard of care.

  8. Association between osteopontin and human abdominal aortic aneurysm.

    Science.gov (United States)

    Golledge, Jonathan; Muller, Juanita; Shephard, Neil; Clancy, Paula; Smallwood, Linda; Moran, Corey; Dear, Anthony E; Palmer, Lyle J; Norman, Paul E

    2007-03-01

    In vitro and animal studies have implicated osteopontin (OPN) in the pathogenesis of aortic aneurysm. The relationship between serum concentration of OPN and variants of the OPN gene with human abdominal aortic aneurysm (AAA) was investigated. OPN genotypes were examined in 4227 subjects in which aortic diameter and clinical risk factors were measured. Serum OPN was measured by ELISA in two cohorts of 665 subjects. The concentration of serum OPN was independently associated with the presence of AAA. Odds ratios (and 95% confidence intervals) for upper compared with lower OPN tertiles in predicting presence of AAA were 2.23 (1.29 to 3.85, P=0.004) for the population cohort and 4.08 (1.67 to 10.00, P=0.002) for the referral cohort after adjusting for other risk factors. In 198 patients with complete follow-up of aortic diameter at 3 years, initial serum OPN predicted AAA growth after adjustment for other risk factors (standardized coefficient 0.24, P=0.001). The concentration of OPN in the aortic wall was greater in patients with small AAAs (30 to 50 mm) than those with aortic occlusive disease alone. There was no association between five single nucleotide polymorphisms or haplotypes of the OPN gene and aortic diameter or AAA expansion. Serum and tissue concentrations of OPN are associated with human AAA. We found no relationship between variation of the OPN gene and AAA. OPN may be a useful biomarker for AAA presence and growth.

  9. Analysis of blood flow patterns in aortic aneurysm by cine magnetic resonance imaging

    International Nuclear Information System (INIS)

    Matsuoka, Hiroshi

    1993-01-01

    Cine MRI (0.5 T) using rephased gradient echo technique was performed to study the patterns of blood flow in the aortic aneurysm of 16 patients with aortic aneurysm, and the data were compared with those of 5 healthy volunteers. In the transaxial section, the blood flow in normal aorta appeared as homogeneous high intensity during systole. On the other hand, the blood flow in the aneurysm appeared as inhomogeneous flow enhancement with flow void. In the sagittal scan, the homogeneous flow enhancement in a normal aorta was also observed during systole and its apex of flow enhancement was 'taper'. The blood flow patterns in the aneurysm were classified as 'irregular', 'zonal', 'eddy', and 'obscure' depending on the contrast of flow enhancement and flow void. Their apexes were 'taper' or 'round'. The blood flow patterns in the aneurysm were related to the size of aneurysm. In patients with a large size 'aneurysm, their flow patterns were 'eddy' or 'obscure' and the flow enhancement was 'round'. On the other hand, in patients with a small size aneurysm, their flow patterns were 'irregular' or 'zonal', and their flow enhancement was 'taper'. Though the exact mechanism of abnormal flow patterns in an aortic aneurysm remains to be determined, cine MRI gives helpful informations in assessing blood flow dynamics in the aneurysm. (author)

  10. Celiac Trunk Embolization, as a Means of Elongating Short Distal Descending Thoracic Aortic Aneurysm Necks, Prior to Endovascular Aortic Repair

    International Nuclear Information System (INIS)

    Belenky, Alexander; Haddad, Menashe; Idov, Igor; Knizhnik, Michael; Litvin, Sergey; Bachar, Gil N.; Atar, Eli

    2009-01-01

    The purpose of this study was to report our experience in elongating short distal necks of descending thoracic aortic aneurysms (DTAAs) by coil embolization of the celiac trunk prior to endovascular aneurysm repair (EVAR). During 6 years seven patients (five men and two women; mean age, 74) who had DTAAs with short distal necks unsuitable for conventional EVAR, and well patent superior and inferior mesenteric arteries based on CT, were treated in one session with EVAR after the celiac trunk was coil embolized to elongate the neck. All patients were followed by CT every 3 months in the first year and every 6 months thereafter. Technical success was achieved in all patients, and no early or late ischemic complications were noted. No procedural complications occurred and good aneurysm sealing was obtained in all patients. Three endoleaks were identified after 3 months (one patient) and 6 months (two patients); all were treated successfully with insertion of an additional stent-graft. In patients with DTAAs who are candidates for EVAR but have short aneurysm distal necks, celiac trunk embolization-only if the superior and inferior mesenteric arteries are patent-is a good and safe way to elongate the neck and enable EVAR.

  11. The validity of ultrasonographic scanning as screening method for abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Lindholt, Jes Sanddal; Vammen, Sten; Juul, Søren

    1999-01-01

    the sensitivity and specificity of screening for abdominal aortic aneurysms (AAAs) with ultrasonographic scanning (US) is unknown. The aim of the study was to validate US as screening test for AAAs.......the sensitivity and specificity of screening for abdominal aortic aneurysms (AAAs) with ultrasonographic scanning (US) is unknown. The aim of the study was to validate US as screening test for AAAs....

  12. Ten-Year Experience with Surgical Repair of Mycotic Aortic Aneurysms

    Directory of Open Access Journals (Sweden)

    I-Ming Chen

    2005-06-01

    Conclusion: Mycotic aneurysm of the aorta is a life-threatening disease, especially when rupture occurs. The high mortality rate is due not only to the high rupture rate, but also to sepsis. When mycotic aortic aneurysm is diagnosed, early surgical intervention is mandatory.

  13. Arteriovenous fistula complicating iliac artery pseudo aneurysm: diagnosis by CT angiography.

    Science.gov (United States)

    Huawei, L; Bei, D; Huan, Z; Zilai, P; Aorong, T; Kemin, C

    2002-01-01

    Fistula formation to the inferior vena cava is a rare complication of aortic aneurysm which is often misdiagnosed clinically. In one hundred of reported arteriocaval fistulae, none was originating from the right common iliac artery. We report a case of ileo-caval fistula due to a iatrogenic pseudoaneurysm. High resolution 3D imaging using breath-hold CT angiography is highly specific in identifying the location, extent of the aortocaval fistula as well as the neighbouring anatomic structures.

  14. Rupture of abdominal aortic aneurysm into sigmoid colon: A case report

    Science.gov (United States)

    Aksoy, Murat; Yanar, Hakan; Taviloglu, Korhan; Ertekin, Cemalettin; Ayalp, Kemal; Yanar, Fatih; Guloglu, Recep; Kurtoglu, Mehmet

    2006-01-01

    Primary aorto-colic fistula is rarely reported in the literature. Although infrequently encountered, it is an important complication since it is usually fatal unless detected. Primary aorto-colic fistula is a spontaneous rupture of abdominal aortic aneurysm into the lumen of the adjacent colon loop. Here we report a case of primary aorto-colic fistula in a 54-year old male. The fistulated sigmoid colon was repaired by end-to-end anastomosis. Despite inotropic support, the patient died of sepsis and multiorgan failure on the first postoperative day. PMID:17167850

  15. Acute Contained Ruptured Aortic Aneurysm Presenting as Left Vocal Fold Immobility

    OpenAIRE

    Gnagi, Sharon H.; Howard, Brittany E.; Hoxworth, Joseph M.; Lott, David G.

    2015-01-01

    Objective. To recognize intrathoracic abnormalities, including expansion or rupture of aortic aneurysms, as a source of acute onset vocal fold immobility. Methods. A case report and review of the literature. Results. An 85-year-old female with prior history of an aortic aneurysm presented to a tertiary care facility with sudden onset hoarseness. On laryngoscopy, the left vocal fold was immobile in the paramedian position. A CT scan obtained that day revealed a new, large hematoma surrounding ...

  16. [Surgical treatment of the aortic root aneurysm related to Marfan syndrome].

    Science.gov (United States)

    Zheng, Si-hong; Sun, Yan-qing; Meng, Xu; Zhang, Hong; Hou, Xiao-tong; Wang, Jian-gang; Gao, Feng

    2005-08-24

    To review the experience of surgical treatment of aortic root aneurysm of Marfan syndrome. We The clinical data of 84 Marfan syndrome patients, 61 males and 23 females, aged 35 +/- 12 (5 - 62), 41 cases presenting with aortic dissection (Debakey type I in 32 cases and type II in 9), 52 cases with moderate to severe aortic regurgitation, and 9 cases with moderate to severe mitral regurgitation, 43 cases with cardiac function of class I - II, 30 with class III and 11 with class IV according the New York Heart Association (NYHA) standard, who underwent surgical treatment for aortic root aneurysm with a mean diameter of 68 mm +/- 14 mm, were analyzed. Bentall procedure was performed in 68 cases, Wheat procedure in 6, Cabrol procedure in 5, and aortic valve replacement and aortoplasty in 5. Concomitant procedures included mitral value replacement and mitral valvuoplasty in 3 cases respectively. Urgent surgery was conducted in 28 cases, and elective operation in 56 cases. There were 3 in-hospital deaths (3.57%). 76 cases were followed up for a mean duration of 55 +/- 31 months. Three patients underwent reoperation. The cardiac function returned to class I - II except for 2 cases that remained at the class III. Bentall procedure should be the first choice of the surgery for aortic root aneurysm of Marfan syndrome with a low mortality and a good late outcome.

  17. Initial clinical experience with a sac-anchoring endoprosthesis for aortic aneurysm repair.

    Science.gov (United States)

    Donayre, Carlos E; Zarins, Christopher K; Krievins, Dainis K; Holden, Andrew; Hill, Andrew; Calderas, Carlos; Velez, Jaime; White, Rodney A

    2011-03-01

    All current aortic endografts depend on proximal and distal fixation to prevent migration. However, migration and rupture can occur, particularly in patients with aortic necks that are short or angulated, or both. We present our initial clinical experience with a new sac-anchoring endoprosthesis designed to anchor and seal the device within the aneurysm sac. The initial worldwide experience using a new endoprosthesis for the treatment of aortic aneurysms (Nellix Endovascular, Palo Alto, Calif) was reviewed. The endoprosthesis consists of dual balloon-expandable endoframes surrounded by polymer-filled endobags designed to obliterate the aneurysm sac and maintain endograft position. Clinical results and follow-up contrast computed tomography (CT) scans at 30 days and 6 and 12 months were reviewed. The endograft was successfully deployed in 21 patients with infrarenal aortic aneurysms measuring 5.7 ± 0.7 cm (range, 4.3-7.4 cm). Two patients with common iliac aneurysms were treated with sac-anchoring extenders that maintained patency of the internal iliac artery. Infusion of 71 ± 37 mL of polymer (range, 19-158 mL) into the aortic endobags resulted in complete aneurysm exclusion in all patients. Mean implant time was 76 ± 35 minutes, with 33 ± 17 minutes of fluoroscopy time and 180 ± 81 mL of contrast; estimated blood loss was 174 ± 116 mL. One patient died during the postoperative period (30-day mortality, 4.8%), and one died at 10 months from non-device-related causes. During a mean follow-up of 8.7 ± 3.1 months and a median of 6.3 months, there were no late aneurysm- or device-related adverse events and no secondary procedures. CT imaging studies at 6 months and 1 year revealed no increase in aneurysm size, no device migration, and no new endoleaks. One patient had a limited proximal type I endoleak at 30 days that resolved at 60 days and remained sealed. One patient has an ongoing distal type I endoleak near the iliac bifurcation, with no change in aneurysm

  18. Rectus sheath haematoma or leaking aortic aneurysm - a diagnostic challenge: a case report

    Directory of Open Access Journals (Sweden)

    Shaw Aidan G

    2009-11-01

    Full Text Available Abstract Introduction A rectus sheath haematoma is a rare condition that arises from the accumulation of blood within the rectus sheath from either muscular tear or rupture of the epigastric vessels. It is a known complication of either blunt abdominal trauma, anticoagulation therapy or the repetitive contraction of the rectus muscle such as paroxysms of coughing. It remains an uncommon and elusive entity and is often clinically misdiagnosed. Case presentation An 80-year-old British man with a known aortic aneurysm was admitted with sudden onset of right iliac fossa pain. The patient was hemodynamically stable and underwent a computed tomography scan which revealed an intact aorta and an acute rectus sheath hematoma. Conclusion To the best of our knowledge, no case has previously been reported involving the diagnostic challenge of a rectus sheath hematoma in a patient with a known aortic aneurysm. Here we discuss the symptoms and signs of a rectus sheath hematoma, as well as the radiological modalities that could be utilized to reach the diagnosis.

  19. Is Conventional Open Repair for Abdominal Aortic Aneurysm Feasible in Nonagenarians?

    Science.gov (United States)

    Uehara, Kyokun; Matsuda, Hitoshi; Inoue, Yosuke; Omura, Atsushi; Seike, Yoshimasa; Sasaki, Hiroaki; Kobayashi, Junjiro

    2017-09-25

    Background : Although endovascular repair for abdominal aortic aneurysm has been found to be beneficial in very elderly patients, some patients have contraindications to this procedure. For nonagenarians, the results of open repair remain unclear. The purpose of this study was to compare the outcomes of open vs. endovascular repair for abdominal aortic aneurysm in nonagenarian patients. Methods and Results : Fourteen patients undergoing open surgical repair and 24 undergoing endovascular repair for abdominal aortic aneurysm were evaluated. There was no significant difference in early mortality between the open and endovascular groups (0% vs. 4.1%, p=0.16). The open repair group required much longer hospital stays (26.4 vs. 10.6 days, respectively, p=0.003). Finally, 12 patients (86%) undergoing open repair vs. 21 (88%) undergoing endovascular repair returned home (p=0.49). During a mean follow-up period of 23.4±23.5 months, cumulative estimated 1- and 3-year survival rates were 90.0% and 48.0%, respectively in the open repair group and 90.6% and 54.9%, respectively in the endovascular repair group (p=0.51). Conclusion : Although endovascular repair for abdominal aortic aneurysm was superior in terms of recovery, the results of conventional open repair were acceptable even in nonagenarian patients. Open repair remains an alternative for patients with contraindications to endovascular repair.

  20. Computer tomography in refined diagnosis of abdominal aortic aneurysms: comparison of outcomes of radiation therapies Versus surgical and morphological studies of resected abdominal aortic fragments

    International Nuclear Information System (INIS)

    Denisova, L.B.; Platonova, A.G.; Demidov, I.N.; Emel'yanova, L.N.

    1998-01-01

    The results of computed tomography (CT) was compared with ultrasonographic and angiographic finding in 168 patients. All data of radiation diagnosis of abdominal aortic aneurysms (AAA) were compared with those of operations and morphological studies of the resected fragments of the aortic parts changed due to aneurysms. These comparisons provided a detailed characterization of the potentialities of CT performed on a third-generation unit in the presurgical diagnosis of this abnormally. At the same time, detailed XCT finding (semiotics of AAA and their complications) are given. The study shows benefits of the refined AAA by applying routine CT. The paper gives a diagnostic algorithm of using radiation studies (ultrasonography, CT, angiography) in the diagnosis of AAA. Third-generation CT units widely used in clinical practice are shown to provide necessary and complete information on the magnitude of AAA

  1. Maximum Diameter Measurements of Aortic Aneurysms on Axial CT Images After Endovascular Aneurysm Repair: Sufficient for Follow-up?

    International Nuclear Information System (INIS)

    Baumueller, Stephan; Nguyen, Thi Dan Linh; Goetti, Robert Paul; Lachat, Mario; Seifert, Burkhardt; Pfammatter, Thomas; Frauenfelder, Thomas

    2011-01-01

    Purpose: To assess the accuracy of maximum diameter measurements of aortic aneurysms after endovascular aneurysm repair (EVAR) on axial computed tomographic (CT) images in comparison to maximum diameter measurements perpendicular to the intravascular centerline for follow-up by using three-dimensional (3D) volume measurements as the reference standard. Materials and Methods: Forty-nine consecutive patients (73 ± 7.5 years, range 51–88 years), who underwent EVAR of an infrarenal aortic aneurysm were retrospectively included. Two blinded readers twice independently measured the maximum aneurysm diameter on axial CT images performed at discharge, and at 1 and 2 years after intervention. The maximum diameter perpendicular to the centerline was automatically measured. Volumes of the aortic aneurysms were calculated by dedicated semiautomated 3D segmentation software (3surgery, 3mensio, the Netherlands). Changes in diameter of 0.5 cm and in volume of 10% were considered clinically significant. Intra- and interobserver agreements were calculated by intraclass correlations (ICC) in a random effects analysis of variance. The two unidimensional measurement methods were correlated to the reference standard. Results: Intra- and interobserver agreements for maximum aneurysm diameter measurements were excellent (ICC = 0.98 and ICC = 0.96, respectively). There was an excellent correlation between maximum aneurysm diameters measured on axial CT images and 3D volume measurements (r = 0.93, P < 0.001) as well as between maximum diameter measurements perpendicular to the centerline and 3D volume measurements (r = 0.93, P < 0.001). Conclusion: Measurements of maximum aneurysm diameters on axial CT images are an accurate, reliable, and robust method for follow-up after EVAR and can be used in daily routine.

  2. Endovascular therapy of abdominal aortic aneurysm: results of a mid-term follow-up

    International Nuclear Information System (INIS)

    Pitton, M.B.; Schweitzer, H.; Herber, S.; Thelen, M.; Schmiedt, W.; Neufang, A.; Dueber, C.

    2003-01-01

    Prospective study to evaluate clinical results and complications of endovascular abdominal aortic aneurysm treatment in a mid-term follow-up. Materials and methods: A total of 122 patients (9 females, 113 males, average age 70.0±7,9 years) with abdominal aortic aneurysms were treated with stent grafts (53 Vanguard or Stentor endografts, 69 Talent endografts). Group I consisted of 40 patients who had all aortic tributaries of the aneurysm sac occluded prior to endovalscular grafting, either spontaneously by parietal thrombosis or by selective coil embolization of the respective ostia preserving collateral circulation distal to the vessel occlusion. Group II consisted of 82 patients and included all cases without or with incomplete coil embolization with at least one patent vessel. Stent grafting was performed in general anesthesia in the first 21 patients, followed by peridural anesthesia in 15 cases, and local anesthesia with conscious sedation in 86 cases. The results were evaluated with Spiral-CT, MRI and radiographs of the endovascular graft, with follow-up examinations obtained at 3, 6, 12 months, and every year - Implantation was successfully completed in all cases without primary conversion surgery, laparotomy or any significant complication. Mean follow-up was 29±21 months (maximum 82 months). The 30-day mortality was 0,8% due to a myocardial infarction 3 days after discharge from the hospital. A total of 47 re-interventions were performed in 29 patients (23.8%), with 35 re-interventions in 18 cases with Vanguard or Stentor endografts and 12 re-interventions in 11 patients with Talent endografts. 23 percutaneous re-interventions included distal graft extension (n=11), Wallstent for kinking and limb stenosis (n=3), and secondary coil embolization of collateral vessels (n=9). 24 surgical re-interventions included proximal graft extension (n=6), new endovascular grafts (n=3), surgical clipping of lumbar and mesenteric artery branches for type-II endoleaks

  3. Innovative chimney-graft technique for endovascular repair of a pararenal abdominal aortic aneurysm.

    Science.gov (United States)

    Galiñanes, Edgar Luis; Hernandez-Vila, Eduardo A; Krajcer, Zvonimir

    2015-02-01

    After abdominal aortic aneurysm repair, progressive degeneration of the aneurysm can be challenging to treat. Multiple comorbidities and previous operations place such patients at high risk for repeat surgery. Endovascular repair is a possible alternative; however, challenging anatomy can push the limits of available technology. We describe the case of a 71-year-old man who presented with a 5.3-cm pararenal aneurysm 4 years after undergoing open abdominal aortic aneurysm repair. To avoid reoperation, we excluded the aneurysm by endovascular means, using visceral-artery stenting, a chimney-graft technique. Low-profile balloons on a monorail system enabled the rapid exchange of coronary wires via a buddy-wire technique. This novel approach facilitated stenting and simultaneous angioplasty of multiple visceral vessels and the abdominal aorta.

  4. Aortic root reimplantation procedure: a new milestone in aortic valve-sparing operations

    Directory of Open Access Journals (Sweden)

    А. М. Чернявский

    2016-08-01

    Full Text Available Aim: Emphasis in this study was placed on clinical and functional assessment of a modified "Florida Sleeve" procedure during surgical correction of ascending aorta aneurysms with concomitant aortic insufficiency.Methods: 32 patients with an aneurysm of the ascending aorta and aortic insufficiency underwent a modified "Florida Sleeve" procedure. The average follow-up was 17 (0-60 months. The average age of patients was 57±13 (23-73 years 56±13 years.Results: The expected 4-year cumulative survival rate was 84.3%. Overall freedom from aortic insufficiency in the late period was 88.9%. Median aortic regurgitation was 1+ (1; 2. Long-term follow-up revealed no valve-associated complications.Conclusion: The aortic root reimplantation procedure enables optimal correction of the existing lesions of the aortic root without performing aortic valve replacement and demonstrates stable clinical and functional outcomes in the long-term period.Key words: aortic aneurysm; aortic valve; valve-sparing operations.FundingThe study had no sponsorship.Conflict of interestThe authors declare no conflict of interest.

  5. Abdominal aortic aneurysm calcification and thrombus volume are not associated with outcome following endovascular abdominal aortic aneurysm repair

    International Nuclear Information System (INIS)

    Rai, Divyajeet; Velu, Ramesh; Tosenovsky, Patrik; Quigley, Francis; Wisniowski, Brendan; Walker, Philip J.; Bradshaw, Barbara; Golledge, Jonathan

    2014-01-01

    Aortic calcification and thrombus have been postulated to worsen outcome following endovascular abdominal aortic aneurysm repair (EVAR). The purpose of this study was to assess the association of abdominal aortic aneurysm (AAA) calcification and thrombus volume with outcome following EVAR using a reproducible, quantifiable computed tomography (CT) assessment protocol. Patients with elective EVAR performed between January 2002 and 2012 at the Townsville Hospital, Mater Private Hospital (Townsville) and Royal Brisbane and Women's Hospital (RBWH) were included if preoperative CTAs were available for analysis. AAA calcification and thrombus volume were measured using a semiautomated workstation protocol. Outcomes were assessed in terms of clinical failure, endoleak (type I, type II) and reintervention. Univariate and multivariate analyses were performed. Median follow-up was 1.7 years and the interquartile range 1.0-3.8 years. One hundred thirty-four patients undergoing elective EVAR were included in the study. Rates of primary clinical success and freedom from reintervention were 82.8 % and 88.9 % at the 24-month follow-up. AAA calcification and thrombus volume were not associated with clinical failure, type I endoleak, type II endoleak or reintervention. AAA calcification and thrombus volume were not associated with poorer outcome after EVAR in this study. (orig.)

  6. Abdominal aortic aneurysm calcification and thrombus volume are not associated with outcome following endovascular abdominal aortic aneurysm repair

    Energy Technology Data Exchange (ETDEWEB)

    Rai, Divyajeet; Velu, Ramesh; Tosenovsky, Patrik; Quigley, Francis [James Cook University, Queensland Research Centre for Peripheral Vascular Disease, School of Medicine and Dentistry, Townsville, Queensland (Australia); The Townsville Hospital, Department of Vascular and Endovascular Surgery, Douglas (Australia); Wisniowski, Brendan; Walker, Philip J. [James Cook University, Queensland Research Centre for Peripheral Vascular Disease, School of Medicine and Dentistry, Townsville, Queensland (Australia); University of Queensland, School of Medicine and Centre for Clinical Research, Department of Vascular Surgery, Royal Brisbane and Women' s Hospital, Herston, QLD (Australia); Bradshaw, Barbara [James Cook University, Queensland Research Centre for Peripheral Vascular Disease, School of Medicine and Dentistry, Townsville, Queensland (Australia); Golledge, Jonathan [James Cook University, Queensland Research Centre for Peripheral Vascular Disease, School of Medicine and Dentistry, Townsville, Queensland (Australia); The Townsville Hospital, Department of Vascular and Endovascular Surgery, Douglas (Australia); University of Queensland, School of Medicine and Centre for Clinical Research, Department of Vascular Surgery, Royal Brisbane and Women' s Hospital, Herston, QLD (Australia)

    2014-08-15

    Aortic calcification and thrombus have been postulated to worsen outcome following endovascular abdominal aortic aneurysm repair (EVAR). The purpose of this study was to assess the association of abdominal aortic aneurysm (AAA) calcification and thrombus volume with outcome following EVAR using a reproducible, quantifiable computed tomography (CT) assessment protocol. Patients with elective EVAR performed between January 2002 and 2012 at the Townsville Hospital, Mater Private Hospital (Townsville) and Royal Brisbane and Women's Hospital (RBWH) were included if preoperative CTAs were available for analysis. AAA calcification and thrombus volume were measured using a semiautomated workstation protocol. Outcomes were assessed in terms of clinical failure, endoleak (type I, type II) and reintervention. Univariate and multivariate analyses were performed. Median follow-up was 1.7 years and the interquartile range 1.0-3.8 years. One hundred thirty-four patients undergoing elective EVAR were included in the study. Rates of primary clinical success and freedom from reintervention were 82.8 % and 88.9 % at the 24-month follow-up. AAA calcification and thrombus volume were not associated with clinical failure, type I endoleak, type II endoleak or reintervention. AAA calcification and thrombus volume were not associated with poorer outcome after EVAR in this study. (orig.)

  7. Visceral hybrid reconstruction of thoracoabdominal aortic aneurysm after open repair of type a aortic dissection by the Bentall procedure with the elephant trunk technique: A case report

    Directory of Open Access Journals (Sweden)

    Marjanović Ivan

    2014-01-01

    Full Text Available Introduction. Reconstruction of chronic type B dissection and thoracoabdominal aortic aneurysm (TAAA remaining after the emergency reconstruction of the ascending thoracic aorta and aortic arch for acute type A dissection represents one of the major surgical challenges. Complications of chronic type B dissection are aneurysmal formation and rupture of an aortic aneurysm with a high mortality rate. We presented a case of visceral hybrid reconstruction of TAAA secondary to chronic dissection type B after the Bentall procedure with the elephant trunk technique due to acute type A aortic dissection in a high-risk patient. Case report. A 62 year-old woman was admitted to our institution for reconstruction of Crawford type I TAAA secondary to chronic dissection. The patient had had an acute type A aortic dissection 3 years before and undergone reconstruction by the Bentall procedure with the elephant trunk technique with valve replacement. On admission the patient had coronary artery disease (myocardial infarction, two times in the past 3 years, congestive heart disease with ejection fraction of 25% and chronic obstructive pulmonary disease. On computed tomography (CT of the aorta TAAA was revealed with a maximum diameter of 93 mm in the descending thoracic aorta secondary to chronic dissection. All the visceral arteries originated from the true lumen with exception of the celiac artery (CA, and the end of chronic dissection was below the origin of the superior mesenteric artery (SMA. The patient was operated on using surgical visceral reconstruction of the SMA, CA and the right renal artery (RRA as the first procedure. Postoperative course was without complications. Endovascular TAAA reconstruction was performed as the second procedure one month later, when the elephant trunk was used as the proximal landing zone for the endograft, and distal landing zone was the level of origin of the RRA. Postoperatively, the patient had no neurological deficit and

  8. Appearance of femoropopliteal segment aneurysms in patients with abdominal aortic aneurysm

    Directory of Open Access Journals (Sweden)

    Maksić Milanko

    2012-01-01

    Full Text Available Background/Aim. To promote better treatment outcome, as well as economic benefit it is very important to find out patients with simultaneous occurrence of both aortic and arterial aneurysms. The aim of this prospective study was to determine the frequency and factors affecting femoropopliteal (F-P segment aneurysms appearance in patients with abdominal aortic aneurysms (AAA. Methods. This study included 70 patients who had underwent elective or urgent surgery of AAA from January 1, 2006 to December 31, 2007. After ultrasonographic examination of F-P segment, all the patients were divided into two groups - those with adjunctive F-P segment aneurysm (n = 20 and the group of 50 patients with no adjunctive F-P segment aneurysm. In both groups demographic characteristics (gender, age, risk factors (diabetes mellitus, elevated serum levels of cholesterol and triglycerides, arterial hypertension, smoking, obesity and cardiovascular comorbidity (cerebrovascular desease, ischemic heart desease were investigated. Results. Twenty (28.57% patients who had been operated on because of AAA, had adjunctive aneurysmal desease of F-P segment. Diabetes was no statistically significantly more present among the patients who, beside AAA, had adjunctive aneurismal desease of F-P segment (χ2 = 0.04; DF = 1; p > 0.05. Also, in both groups there was no statistically significant difference in gender structure (χ2 = 2. 05; DF = 2; p > 0.05, age (χ2 = 5. 46; DF = 1; p > 0.05, total cholesterol level (χ2 = 0.89; DF = 1; p > 0.05 and triglyceride (χ2 = 0.89; DF = 1; p > 0.05 levels, the presence of arterial hypertension (χ2 = 1.38; DF = 2; p > 0.05, smoking (χ2 = 1.74; DF = 1; p > 0.05, obesity (χ2 = 1.76; DF = 1; p > 0.05 and presence of cerebrovascular desease (χ2 = 2.34; DF = 1; p > 0.05. Conversly, ischemic heart desease was statistically significantly more present among the patients who, beside AAA, had adjunctive aneurismal desease of F-P segment (χ2 = 5

  9. Case report: ruptured aortic aneurysm into oesophagus - treatment by covered stent

    International Nuclear Information System (INIS)

    Young, N.; Tan, I.; Costa, R.

    2002-01-01

    Full text: A case report of a 70 year old man acutely presenting with a large descending thoracic aortic aneurysm, ruptured into the adjacent oesophagus. He was treated with an Aneurex covered stent (Medtronics). This patient has a long history of ischaemic heart disease, hypertension and previously treated abdominal aortic aneurysm. After diagnosis by CT, the bleeding was emergency temponaded by insertion of a Sengstaken-Blackmore tube into the oesophagus and inflated to arterial pressure. After stabilisation in ICU, it was decided that open surgery would probably prove fatal, and insertion of a covered thoracic aortic stent was performed in theatre with a femoral artery cut-down. Post-operatively the bleeding from the aortic aneurysm ceased. However, the patient has ongoing problems with large, open oesophageal ulcer with chronic ooze requiring intermittent transfusions, chronic infection with MRSA, requiring long term antibiotics, feeding via feeding gastrostomy tubes. The patient is stable 12 months after presentation. Treatment of this otherwise fatal problem by covered stent has permitted survival benefit. However, there are significant, unresolved issues of oesophageal ulcer and ongoing MRSA infection. Copyright (2002) Blackwell Science Pty Ltd

  10. Spontaneous Retroperitoneal Hematoma Simulating Ruptured Infrarenal Aortic Aneurysm in a Patient with End-Stage Renal Disease

    Science.gov (United States)

    Li, JYY; Chan, YC; Qing, KX; Cheng, SW

    2014-01-01

    We reported a case of spontaneous retroperitoneal hematoma (SRH) simulating a ruptured infrarenal aortic aneurysm. A 72-year-old man with a history of infrarenal aortic aneurysm and end-stage renal disease on hemodialysis presented with malaise and nonspecific central abdominal pain and left loin discomfort. An emergency computed tomography scan showed a large retroperitoneal hematoma and clinical suspicion of ruptured infrarenal aortic aneurysm. However, the hematoma was discontinuous with the aneurysm sac and raised the clinical suspicion on dual pathology. The SRH was treated conservatively with transfusion of blood products, and the aneurysm was treated with nonemergency endovascular repair electively. This case demonstrates the importance of recognizing different clinical and radiological characteristics and be aware of dual pathology. PMID:28031651

  11. Valve-sparing aortic root replacement and aortic valve repair in a patient with acromegaly and aortic root dilatation

    Directory of Open Access Journals (Sweden)

    Karel Van Praet

    2015-07-01

    Full Text Available Aortic regurgitation and dilatation of the aortic root and ascending aorta are severe complications of acromegaly. The current trend for management of an aortic root aneurysm is valve-sparing root replacement as well as restoring the diameter of the aortic sinotubular junction (STJ and annulus. Our case report supports the recommendation that in patients with acromegaly, severe aortic root involvement may indicate the need for surgery.

  12. [Aortic elastic properties and its clinical significance in intracranial aneurysms].

    Science.gov (United States)

    Pu, Zhao-xia; You, Xiang-dong; Weng, Wen-chao; Wang, Jian-an; Shi, Jian

    2011-09-01

    To investigate the aortic elastic properties and its clinical significance in intracranial aneurysms (IAs). One hundred and seven IAs patients (57 with hypertension) and 108 healthy subjects were recruited. The internal aortic diameters in systole and diastole were measured by the M-mode echocardiography, the aortic elasticity indexes were calculated and compared. The aortic distensibility (DIS) was lower and the aortic stiffness index (SI) was higher in IAs patients than those in controls (both P IAs patients with hypertension (IAs-HP) than those in IAs with no hypertension (P IAs patients and hypertension is closely related to the severity of aortic elasticity.

  13. Natural history of abdominal aortic aneurysm with and without coexisting chronic obstructive pulmonary disease

    DEFF Research Database (Denmark)

    Lindholt, Jes Sanddal; Heickendorff, Lene; Antonsen, Sebastian

    1998-01-01

    To study the relation between abdominal aortic aneurysms and chronical obstructive pulmonary disease (COPD), in particular the suggested common elastin degradation caused by elastase and smoking.......To study the relation between abdominal aortic aneurysms and chronical obstructive pulmonary disease (COPD), in particular the suggested common elastin degradation caused by elastase and smoking....

  14. Transretroperitoneal CT-guided Embolization of Growing Internal Iliac Artery Aneurysm after Repair of Abdominal Aortic Aneurysm: A Transretroperitoneal Approach with Intramuscular Lidocaine Injection Technique

    Energy Technology Data Exchange (ETDEWEB)

    Park, Joon Young, E-mail: pjy1331@hanmail.net; Kim, Shin Jung, E-mail: witdd2@hanmail.net; Kim, Hyoung Ook, E-mail: chaos821209@hanmail.net [Chonnam National University Hospital, Department of Radiology (Korea, Republic of); Kim, Yong Tae, E-mail: mono-111@hanmail.net [Chonnam National University Hwasun Hospital, Department of Radiology (Korea, Republic of); Lim, Nam Yeol, E-mail: apleseed@hanmail.net; Kim, Jae Kyu, E-mail: kjkrad@jnu.ac.kr [Chonnam National University Hospital, Department of Radiology (Korea, Republic of); Chung, Sang Young, E-mail: sycpvts@jnu.ac.kr; Choi, Soo Jin Na, E-mail: choisjn@jnu.ac.kr; Lee, Ho Kyun, E-mail: mhaha@hanmail.net [Chonnam National University Hospital, Department of Surgery (Korea, Republic of)

    2015-02-15

    This study was designed to evaluate the efficacy and safety of CT-guided embolization of internal iliac artery aneurysm (IIAA) after repair of abdominal aortic aneurysm by transretroperitoneal approach using the lidocaine injection technique to iliacus muscle, making window for safe needle path for three patients for whom CT-guided embolization of IIAA was performed by transretroperitoneal approach with intramuscular lidocaine injection technique. Transretroperitoneal access to the IIAA was successful in all three patients. In all three patients, the IIAA was first embolized using microcoils. The aneurysmal sac was then embolized with glue and coils without complication. With a mean follow-up of 7 months, the volume of the IIAAs remained stable without residual endoleaks. Transretroperitoneal CT-guided embolization of IIAA using intramuscular lidocaine injection technique is effective, safe, and results in good outcome.

  15. Follow-up on Small Abdominal Aortic Aneurysms Using Three Dimensional Ultrasound

    DEFF Research Database (Denmark)

    Ghulam, Q. M.; Bredahl, K. K.; Lönn, L.

    2017-01-01

    Objectives Rupture risk in abdominal aortic aneurysms (AAAs) is assessed using AAA diameter; yet 10% of ruptures occur in a small aneurysm. This underlines the inadequacy of diameter as a standalone parameter. In this prospective follow-up study, ultrasound determined aneurysm diameter was compared...... with aneurysm volume determined by three dimensional ultrasound (3D-US) in a group of 179 AAAs. Design This was a prospective cohort study with repeated diameter and volume measurements by 3D-US. Material and methods In total, 179 patients with small infrarenal AAAs (diameter 30–55 mm) were enrolled......L) were recorded. In post-hoc analysis, it was found that more AAAs with a stable diameter and a growing volume than AAAs with a stable diameter and volume were undergoing aortic repair during follow-up, based on the maximum diameter. Conclusion In this cohort of small AAAs, 40% of patients with a stable...

  16. Blood flow dynamic improvement with aneurysm repair detected by a patient-specific model of multiple aortic aneurysms.

    Science.gov (United States)

    Sughimoto, Koichi; Takahara, Yoshiharu; Mogi, Kenji; Yamazaki, Kenji; Tsubota, Ken'ichi; Liang, Fuyou; Liu, Hao

    2014-05-01

    Aortic aneurysms may cause the turbulence of blood flow and result in the energy loss of the blood flow, while grafting of the dilated aorta may ameliorate these hemodynamic disturbances, contributing to the alleviation of the energy efficiency of blood flow delivery. However, evaluating of the energy efficiency of blood flow in an aortic aneurysm has been technically difficult to estimate and not comprehensively understood yet. We devised a multiscale computational biomechanical model, introducing novel flow indices, to investigate a single male patient with multiple aortic aneurysms. Preoperative levels of wall shear stress and oscillatory shear index (OSI) were elevated but declined after staged grafting procedures: OSI decreased from 0.280 to 0.257 (first operation) and 0.221 (second operation). Graftings may strategically counter the loss of efficient blood delivery to improve hemodynamics of the aorta. The energy efficiency of blood flow also improved postoperatively. Novel indices of pulsatile pressure index (PPI) and pulsatile energy loss index (PELI) were evaluated to characterize and quantify energy loss of pulsatile blood flow. Mean PPI decreased from 0.445 to 0.423 (first operation) and 0.359 (second operation), respectively; while the preoperative PELI of 0.986 dropped to 0.820 and 0.831. Graftings contributed not only to ameliorate wall shear stress or oscillatory shear index but also to improve efficient blood flow. This patient-specific modeling will help in analyzing the mechanism of aortic aneurysm formation and may play an important role in quantifying the energy efficiency or loss in blood delivery.

  17. Combined Repair of Ascending Aortic Pseudoaneurysm and Abdominal Aortic Aneurysm in a Patient with Marfan Syndrome

    OpenAIRE

    Kokotsakis, John N.; Lioulias, Achilleas G.; Foroulis, Christophoros N.; Skouteli, Eleni Anna T.; Milonakis, Michael K.; Bastounis, Elias A.; Boulafendis, Dimitrios G.

    2003-01-01

    Pseudoaneurysms of the ascending aorta after the original inclusion/wrap technique of the Bentall procedure present a difficult surgical management problem and are associated with substantial morbidity and mortality. Patients with Marfan syndrome frequently develop aneurysms and dissections that involve multiple aortic segments. We present the case of a Marfan patient who successfully underwent repair of a giant ascending aortic pseudoaneurysm and concomitant repair of an abdominal aortic ane...

  18. Update: Complications and management of infrarenal EVAR

    International Nuclear Information System (INIS)

    Liaw, J.V.P.; Clark, M.; Gibbs, R.; Jenkins, M.; Cheshire, N.; Hamady, M.

    2009-01-01

    Endovascular aortic aneurysm repair (EVAR) is now an established technique for treating many patients with infrarenal abdominal aortic aneurysm. Familiarity with the complications associated with this technique and understanding treatment options are crucial for the lifelong performance of stent graft. This pictorial review article describes the currant role of different imaging modalities in surveillance and discusses the complications and its management strategies.

  19. Rupture of an Abdominal Aortic Aneurysm in a Young Man with Marfan Syndrome.

    Science.gov (United States)

    Pedersen, Maria Weinkouff; Huynh, Khiem Dinh; Baandrup, Ulrik Thorngren; Nielsen, Dorte Guldbrand; Andersen, Niels Holmark

    2018-04-01

    Abdominal aortic aneurysms (AAAs) are very rare in Marfan syndrome. We present a case with a young nonsmoking and normotensive male with Marfan syndrome, who developed an infrarenal AAA that presented with rupture to the retroperitoneal cavity causing life-threatening bleeding shock. The patient had acute aortic surgery and survived. Five months before this incident, the patient had uneventful elective aortic root replacement (ad modum David) due to an enlarged aortic root. At that time, his abdominal aorta was assessed with a routine ultrasound scan that showed a normal-sized abdominal aorta. This documents that the aneurysm had evolved very rapidly despite young age and absence of risk factors. Copyright © 2018 Elsevier Inc. All rights reserved.

  20. Acute contained ruptured aortic aneurysm presenting as left vocal fold immobility.

    Science.gov (United States)

    Gnagi, Sharon H; Howard, Brittany E; Hoxworth, Joseph M; Lott, David G

    2015-01-01

    Objective. To recognize intrathoracic abnormalities, including expansion or rupture of aortic aneurysms, as a source of acute onset vocal fold immobility. Methods. A case report and review of the literature. Results. An 85-year-old female with prior history of an aortic aneurysm presented to a tertiary care facility with sudden onset hoarseness. On laryngoscopy, the left vocal fold was immobile in the paramedian position. A CT scan obtained that day revealed a new, large hematoma surrounding the upper descending aortic stent graft consistent with an acute contained ruptured aortic aneurysm. She was referred to the emergency department for evaluation and treatment by vascular surgery. She was counseled regarding surgical options and ultimately decided not to pursue further treatment. Her vocal fold immobility was subsequently treated via office-based injection medialization two weeks after presentation and again 5 months after the initial injection which dramatically improved her voice. Follow-up CT scan at 8 months demonstrated a reduction of the hematoma. The left vocal cord remains immobile to date. Conclusion. Ortner's syndrome, or cardiovocal syndrome, is hoarseness secondary to left recurrent laryngeal nerve palsy caused by cardiovascular pathology. It is a rare condition and, while typically presenting gradually, may also present with acute symptomatology.

  1. Acute Contained Ruptured Aortic Aneurysm Presenting as Left Vocal Fold Immobility

    Directory of Open Access Journals (Sweden)

    Sharon H. Gnagi

    2015-01-01

    Full Text Available Objective. To recognize intrathoracic abnormalities, including expansion or rupture of aortic aneurysms, as a source of acute onset vocal fold immobility. Methods. A case report and review of the literature. Results. An 85-year-old female with prior history of an aortic aneurysm presented to a tertiary care facility with sudden onset hoarseness. On laryngoscopy, the left vocal fold was immobile in the paramedian position. A CT scan obtained that day revealed a new, large hematoma surrounding the upper descending aortic stent graft consistent with an acute contained ruptured aortic aneurysm. She was referred to the emergency department for evaluation and treatment by vascular surgery. She was counseled regarding surgical options and ultimately decided not to pursue further treatment. Her vocal fold immobility was subsequently treated via office-based injection medialization two weeks after presentation and again 5 months after the initial injection which dramatically improved her voice. Follow-up CT scan at 8 months demonstrated a reduction of the hematoma. The left vocal cord remains immobile to date. Conclusion. Ortner’s syndrome, or cardiovocal syndrome, is hoarseness secondary to left recurrent laryngeal nerve palsy caused by cardiovascular pathology. It is a rare condition and, while typically presenting gradually, may also present with acute symptomatology.

  2. 18F-FDG PET-CT uptake is a feature of both normal diameter and aneurysmal aortic wall and is not related to aneurysm size

    Energy Technology Data Exchange (ETDEWEB)

    Barwick, Tara D. [Imperial College Healthcare NHS Trust, Charing Cross Hospital, Department of Radiology/Nuclear Medicine, London (United Kingdom); Hammersmith Hospital, Department of Surgery and Cancer, Imperial College London, London (United Kingdom); Lyons, O.T.A.; Waltham, M. [King' s College London, BHF Centre of Research Excellence and NIHR Biomedical Research Centre at King' s Health Partners, Academic Department of Surgery, London (United Kingdom); Mikhaeel, N.G. [Guy' s and St Thomas' Foundation NHS Trust, Department of Oncology, London (United Kingdom); O' Doherty, M.J. [King' s Health Partners, Clinical PET Centre, St Thomas' Hospital, London (United Kingdom)

    2014-12-15

    Aortic metabolic activity is suggested to correlate with presence and progression of aneurysmal disease, but has been inadequately studied. This study investigates the 2-[{sup 18}F] fluoro-2-deoxy-D-glucose ({sup 18}F-FDG) uptake in a population of infra-renal abdominal aortic aneurysms (AAA), compared to a matched non-aneurysmal control group. The Positron Emission Tomography - Computed Tomography (PET/CT) database was searched for infra-renal AAA. Exclusion criteria were prior repair, vasculitis, and saccular/mycotic thoracic or thoraco-abdominal aneurysms. Matching of 159 non-aneurysmal (<3 cm diameter) controls from the same population was assessed. Infra-renal aortic wall FDG uptake was assessed using visual analysis; maximum standardized uptake value (SUV{sub max}) and target to background mediastinal blood pool ratio (TBR) were documented. Predictors of FDG uptake (age, sex, aortic diameter, hypertension, statin use, and diabetes) were assessed using univariate analysis. Follow-up questionnaires were sent to referring clinicians. Aneurysms (n = 151) and controls (n = 159) were matched (p > 0.05) for age, sex, diabetes, hypertension, smoking status, statin use, and indication for PET/CT. Median aneurysm diameter was 5.0 cm (range 3.2-10.4). On visual analysis there was no significant difference in the overall numbers with increased visual uptake 24 % (36/151) in the aneurysm group vs. 19 % (30/159) in the controls, p = ns. SUV{sub max} was slightly lower in the aneurysm group vs. controls (mean (2 SD) 1.75(0.79) vs. 1.84(0.58), p = 0.02). However there was no difference in TBR between the AAA group and controls (mean (2 SD) 1.03 (0.46) vs. 1.05(0.31), p = 0.36). During a median 18 (interquartile range 8-35) months' follow-up 20 were repaired and four were confirmed ruptured. The level of metabolic activity as assessed by {sup 18}F-FDG PET/CT in infra-renal AAA does not correlate with aortic size and does not differ between aneurysms and matched controls

  3. Tissue Responses to Stent Grafts with Endo-Exo-Skeleton for Saccular Abdominal Aortic Aneurysms in a Canine Model

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Il Young; Chung, Jin Wook; Kim, Hyo Cheol [Dept. of Radiology and Institute of Radiation Medicine, Seoul National University College of Medicine, Clinical Research Institute, Seoul (Korea, Republic of); Choi, Young Ho; So Young Ho [Dept. of Radiology, Seoul National University Boramae Hospital, Seoul (Korea, Republic of); Kim, Hyun Beom [Dept. of Radiology, National Cancer Center, Goyang (Korea, Republic of); Min, Seung Kee [Dept. of Surgery, Seoul National University College of Medicine, Seoul (Korea, Republic of); Park, Jae Hyung [Dept. of Radiology, Gachon University Gil Medical Center, Incheon (Korea, Republic of)

    2014-10-15

    We evaluated the effect of close contact between the stent and the graft on the induction of endothelial covering on the stent graft placed over an aneurysm. Saccular abdominal aortic aneurysms were made with Dacron patch in eight dogs. The stent graft consisted of an inner stent, a expanded polytetrafluoroethylene graft, and an outer stent. After sacrificing the animals, the aortas with an embedded stent graft were excised. The aortas were inspected grossly and evaluated microscopically. The animals were sacrificed at two (n = 3), six (n = 3), and eight months (n = 2) after endovascular repair. In two dogs, the aortic lumen was occluded at two months after the placement. On gross inspection of specimens from the other six dogs with a patent aortic lumen, stent grafts placed over the normal aortic wall were covered by glossy white neointima, whereas, stent grafts placed over the aneurysmal aortic wall were covered by brownish neointima. On microscopic inspection, stent grafts placed over the normal aortic wall were covered by thin neointima (0.27 ± 0.05 mm, mean ± standard deviation) with an endothelial layer, and stent grafts placed over the aneurysmal aortic wall were covered by thick neointima (0.62 ± 0.17 mm) without any endothelial lining. Transgraft cell migration at the normal aortic wall was more active than that at the aneurysmal aortic wall. Close contact between the stent and the graft, which was achieved with stent grafts with endo-exo-skeleton, could not enhance endothelial covering on the stent graft placed over the aneurysms.

  4. Induction of autoimmune abdominal aortic aneurysm in pigs

    DEFF Research Database (Denmark)

    Riber, Sara Schødt; Ali, Mulham; Bergseth, Sara Hveding

    2017-01-01

    of this study was to develop a large animal model for abdominal aortic aneurysm induction through autoimmunity by performing sheep-to-pig xenotransplantation. Methods Six pigs underwent a xenotransplantation procedure where the infrarenal porcine aorta was replaced by a decellularized sheep aorta...

  5. Early experience with transfemoral endovascular aneurysm management (TEAM) in the treatment of aortic aneurysms

    NARCIS (Netherlands)

    Balm, R.; Eikelboom, B. C.; May, J.; Bell, P. R.; Swedenborg, J.; Collin, J.

    1996-01-01

    OBJECTIVES: To evaluate the early experience with transfemoral endovascular aortic aneurysm management using the Endovascular Grafting System. DESIGN: Multi-centre prospective evaluation of the implantation procedure and early results (median follow-up 153 days). SETTING: Department of Surgery,

  6. Statin use and rupture of abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Wemmelund, H; Høgh, A; Hundborg, H H

    2014-01-01

    BACKGROUND: Ruptured abdominal aortic aneurysm (rAAA) is associated with high mortality. Research suggests that statins may reduce abdominal aortic aneurysm (AAA) growth and improve rAAA outcomes. However, the clinical impact of statins remains uncertain in relation to both the risk and prognosis...... of rAAA. METHODS: This nationwide, population-based, combined case-control and follow-up study included all patients (aged at least 50 years) with a first-time hospital admission for rAAA and 1:1 matched AAA controls without rupture in Denmark from 1996 to 2008. Individual-level data on preadmission...... drug use, co-morbidities, socioeconomic markers, healthcare contacts and death were obtained from Danish nationwide registries. RESULTS: The study included 3584 cases and 3584 matched controls. Current statin use was registered for 418 patients with rAAA (11.7 per cent) and 539 AAA controls (15.0 per...

  7. Thoracic aortic aneurysm: A rare cause of elevated hemidiaphragm

    Directory of Open Access Journals (Sweden)

    Md Arshad Ejazi

    2016-01-01

    Full Text Available Phrenic nerve palsy causing hemidiaphragm paralysis is a very uncommon feature of thoracic aortic aneurysm. In one case, a 30 year male complained of chronic dull aching chest pain, and hoarseness of voice; posteroanterior view chest radiograph revealed large spherical radiopacity on the left upper lung zone with smooth lobulated margin with elevated left hemidiaphragm. On Colour Doppler sonography, lesion was anechoic on gray scale sonography but on Doppler analysis revealed intense internal vascularity within it with characteristic "Ying Yang" sign. The finding favor the vascular origin of the lesion and a diagnosis of an arterial aneurysm was made Contrast-enhanced computed tomography (CT of the thorax revealed a large well defined spherical lesion of 8 × 10 cm size with smooth well defined margin arising from the aortic arch and attenuation of impending rupture or dissection were lesion on immediate post contrast and delayed scan was similar to that of aorta. Left hemidiaphragm elevation was explained by the gross mass effect of the aneurysm causing right phrenic nerve palsy.

  8. Subacute Staphylococcus epidermidis Bacterial Endocarditis Complicated by Mitral-Aortic Intervalvular Fibrosa Pseudoaneurysm

    Directory of Open Access Journals (Sweden)

    Diane Elegino-Steffens

    2012-01-01

    Full Text Available The patient is a 75-year-old man with a history significant for hypertension and congestive heart failure who underwent a bioprosthetic aortic valve replacement secondary to acute onset of aortic insufficiency. Cultures of the native valve were positive for Staphylococcus epidermidis sensitive to nafcillin and intravenous cefazolin was initiated. On postoperative day 24, he developed acute decompensated heart failure. A transesophageal echocardiogram demonstrated a structurally abnormal mitral valve with severe regurgitation, anterior and posterior leaflet vegetations, and scallop prolapse. There was also evidence of a mitral-aortic intervalvular fibrosa pseudoaneurysm (P-MAIF with systolic expansion and flow within the aneurysm. Antibiotic treatment was changed from cefazolin to vancomycin for presumed development of methicillin-resistant Staphylococcus. He subsequently underwent a bioprosthetic mitral valve replacement and has restoration of health without sequella. This case highlights the development of a P-MAIF as a rare complication of both aortic or mitral valve replacement and infective endocarditis.

  9. Hospital costs and benefits of screening for abdominal aortic aneurysms. Results from a randomised population screening trial

    DEFF Research Database (Denmark)

    Lindholt, Jes Sanddal; Juul, Søren; Fasting, H

    2002-01-01

    to analyse the hospital costs and benefits of screening older males for abdominal aortic aneurysm (AAA). MATERIALS and......to analyse the hospital costs and benefits of screening older males for abdominal aortic aneurysm (AAA). MATERIALS and...

  10. Logistic considerations for a successful institutional approach to the endovascular repair of ruptured abdominal aortic aneurysms.

    Science.gov (United States)

    Mayer, Dieter; Rancic, Zoran; Pfammatter, Thomas; Hechelhammer, Lukas; Veith, Frank J; Donas, Konstantin; Lachat, Mario

    2010-01-01

    The value of emergency endovascular aneurysm repair (EVAR) in the setting of ruptured abdominal aortic aneurysm remains controversial owing to differing results. However, interpretation of published results remains difficult as there is a lack of generally accepted protocols or standard operating procedures. Furthermore, such protocols and standard operating procedures often are reported incompletely or not at all, thereby making interpretation of results difficult. We herein report our integrated logistic system for the endovascular treatment of ruptured abdominal aortic aneurysms. Important components of this system are prehospital logistics, in-hospital treatment logistics, and aftercare. Further studies should include details about all of these components, and a description of these logistic components must be included in all future studies of emergency EVAR for ruptured abdominal aortic aneurysms.

  11. Resolved Abdominal Aortic Aneurysms Following Stent Graft Treatment: A Report of Five Cases

    International Nuclear Information System (INIS)

    Rimon, Uri; Garniek, Alexander; Golan, Gil; Bensaid, Paul; Galili, Yair; Schneiderman, Jacob; Morag, Benyamina

    2004-01-01

    Complete aneurysm resolution is the hallmark of successful endoluminal stent-graft treatment. We describe 5 patients in whom an abdominal aortic aneurysm (AAA) disappeared completely at mid-term follow-up after endovascular stent-graft placement. We reviewed 45 patients (43 men and 2 women) who underwent AAA repair using an endovascular technique, from April 1997 to December 2001. Mean AAA diameter was 58.3 mm. On 48-month follow-up, 12 aneurysms had not changed in size, 4 had grown, 16 had shrunk, and 5 had resolved completely. We describe these 5 patients in detail. The 5 patients were all men, mean age 68 years; their mean aneurysmal sac diameter was 54 mm. The only common finding in all of them was patency of lumbar and inferior mesenteric arteries at pre-procedure evaluation as well as at follow-up. Mean time to complete resolution was 18 months. No major complications were encountered. AAA may resolve completely after endovascular stent-graft implantation. Patent side branches may perhaps contribute to AAA disappearance by antegrade flow. A larger patient population should be reviewed, however, before any statistical conclusion can be drawn

  12. Discrepancies in abdominal aortic aneurysm expressions and repair

    NARCIS (Netherlands)

    Hurks, R.

    2011-01-01

    Abdominal Aortic Aneurysm (AAA) disease is a growing healthcare burden. Besides theassociated cardiovascular comorbidities, the AAA itself poses a risk for the patient in two fashions. First, it could rupture, which is associated with high mortality and morbidity. This thesis focused on the second,

  13. The impact of endovascular repair on specialties performing abdominal aortic aneurysm repair

    NARCIS (Netherlands)

    Ultee, Klaas H J; Hurks, Rob; Buck, Dominique B.; Dasilva, George S.; Soden, Peter A.; Van Herwaarden, Joost A.; Verhagen, Hence J M; Schermerhorn, Marc L.

    2015-01-01

    Background Abdominal aortic aneurysm (AAA) repair has been performed by various surgical specialties for many years. Endovascular aneurysm repair (EVAR) may be a disruptive technology, having an impact on which specialties care for patients with AAA. Therefore, we examined the proportion of AAA

  14. The impact of endovascular repair on specialties performing abdominal aortic aneurysm repair

    NARCIS (Netherlands)

    K.H.J. Ultee (Klaas); R. Hurks (Rob); D.B. Buck (Dominique B.); G.S. Dasilva (George S.); P.A. Soden (Peter A.); J.A. van Herwaarden (Joost); H.J.M. Verhagen (Hence); M.L. Schermerhorn (Marc)

    2015-01-01

    textabstractBackground Abdominal aortic aneurysm (AAA) repair has been performed by various surgical specialties for many years. Endovascular aneurysm repair (EVAR) may be a disruptive technology, having an impact on which specialties care for patients with AAA. Therefore, we examined the proportion

  15. Ruptured aortic aneurysm in a coyote (Canis latrans) from South Carolina.

    Energy Technology Data Exchange (ETDEWEB)

    Miller, Debra, Lee; Schrecengost, Joshua; Kilgo, John; Ray, Scott; Miller, Karl V.

    2007-07-01

    Abstract – A radio-collared adult female coyote (Canis latrans) from South Carolina was found dead with no apparent signs of trauma or struggle. Necropsy revealed a ruptured aortic aneurysm within the thoracic cavity as well as severe heartworm infection, with paracites present in the caudal vena cava. Histologically, inflammatory cell infiltrates were frequent in the aneurysm and consisted of eosinophils, neutrophils, lymphocytes, plasma cells, and macrophages. Bacteria, fungi, and paracites were not found in the aneurysm. Death was due to exsanguinations. This represents a first report of an aneurysm in a coyote.

  16. Atheroembolization and potential air embolization during aortic declamping in open repair of a pararenal aortic aneurysm: A case report.

    Science.gov (United States)

    Dregelid, Einar Børre; Lilleng, Peer Kåre

    2016-01-01

    When ischemic events ascribable to microembolization occur during open repair of proximal abdominal aortic aneurysms, a likely origin of atheroembolism is not always found. A 78-year old man with enlargement of the entire aorta underwent open repair for a pararenal abdominal aortic aneurysm using supraceliac aortic clamping for 20min. Then the graft was clamped, the supraceliac clamp was removed, and the distal and right renal anastomoses were also completed. The patient was stable throughout the operation with only transient drop in blood pressure on reperfusion. Postoperatively the patient developed ischemia, attributable to microembolization, in legs, small intestine, gall bladder and kidneys. He underwent fasciotomy, small bowel and gall bladder resections. Intestinal absorptive function did not recover adequately and he died after 4 months. Microscopic examination of hundreds of intestinal, juxtaintestinal mesenteric, and gall bladder arteries showed a few ones containing cholesterol emboli. It is unsure whether a few occluded small arteries out of several hundred could have caused the ischemic injury alone. There had been only moderate backbleeding from aortic branches above the proximal anastomosis while it was sutured. Inadvertently, remaining air in the graft, aorta, and aortic branches may have been whipped into the pulsating blood, resulting in air microbubbles, when the aortic clamp was removed. Although both atheromatous particles and air microbubbles are well-known causes of iatrogenic microembolization, the importance of air microembolization in open repair of pararenal aortic aneurysms is not known and need to be studied. Copyright © 2016 The Authors. Published by Elsevier Ltd.. All rights reserved.

  17. The effect of endograft device on patient outcomes in endovascular repair of ruptured abdominal aortic aneurysms.

    Science.gov (United States)

    Kansal, Vinay; Nagpal, Sudhir; Jetty, Prasad

    2017-12-01

    Objective Endovascular aneurysm repair for ruptured abdominal aortic aneurysm is being increasingly applied as the intervention of choice. The purpose of this study was to determine whether survival and reintervention rates after ruptured abdominal aortic aneurysm vary between endograft devices. Methods This cohort study identified all ruptured abdominal aortic aneurysms performed at The Ottawa Hospital from January 1999 to May 2015. Data collected included patient demographics, stability index at presentation, adherence to device instructions for use, endoleaks, reinterventions, and mortality. Kruskal-Wallis test was used to compare outcomes between groups. Mortality outcomes were assessed using Kaplan-Meier survival analysis, and multivariate Cox regression modeling. Results One thousand sixty endovascular aneurysm repairs were performed using nine unique devices. Ninety-six ruptured abdominal aortic aneurysms were performed using three devices: Cook Zenith ( n = 46), Medtronic Endurant ( n = 33), and Medtronic Talent ( n = 17). The percent of patients presented in unstable or extremis condition was 30.2, which did not differ between devices. Overall 30-day mortality was 18.8%, and was not statistically different between devices ( p = 0.16), although Medtronic Talent had markedly higher mortality (35.3%) than Cook Zenith (15.2%) and Medtronic Endurant (15.2%). AUI configuration was associated with increased 30-day mortality (33.3% vs. 12.1%, p = 0.02). Long-term mortality and graft-related reintervention rates at 30 days and 5 years were similar between devices. Instructions for use adherence was similar across devices, but differed between the ruptured abdominal aortic aneurysm and elective endovascular aneurysm repair cohorts (47.7% vs. 79.0%, p 30 days post-endovascular aneurysm repair ( p = 0.01). Type 1 endoleak rates differed significantly across devices (Cook Zenith 0.0%, Medtronic Endurant 18.2%, Medtronic Talent 17.6%, p = 0

  18. 18F-FDG PET-CT uptake is a feature of both normal diameter and aneurysmal aortic wall and is not related to aneurysm size

    International Nuclear Information System (INIS)

    Barwick, Tara D.; Lyons, O.T.A.; Waltham, M.; Mikhaeel, N.G.; O'Doherty, M.J.

    2014-01-01

    Aortic metabolic activity is suggested to correlate with presence and progression of aneurysmal disease, but has been inadequately studied. This study investigates the 2-[ 18 F] fluoro-2-deoxy-D-glucose ( 18 F-FDG) uptake in a population of infra-renal abdominal aortic aneurysms (AAA), compared to a matched non-aneurysmal control group. The Positron Emission Tomography - Computed Tomography (PET/CT) database was searched for infra-renal AAA. Exclusion criteria were prior repair, vasculitis, and saccular/mycotic thoracic or thoraco-abdominal aneurysms. Matching of 159 non-aneurysmal ( max ) and target to background mediastinal blood pool ratio (TBR) were documented. Predictors of FDG uptake (age, sex, aortic diameter, hypertension, statin use, and diabetes) were assessed using univariate analysis. Follow-up questionnaires were sent to referring clinicians. Aneurysms (n = 151) and controls (n = 159) were matched (p > 0.05) for age, sex, diabetes, hypertension, smoking status, statin use, and indication for PET/CT. Median aneurysm diameter was 5.0 cm (range 3.2-10.4). On visual analysis there was no significant difference in the overall numbers with increased visual uptake 24 % (36/151) in the aneurysm group vs. 19 % (30/159) in the controls, p = ns. SUV max was slightly lower in the aneurysm group vs. controls (mean (2 SD) 1.75(0.79) vs. 1.84(0.58), p = 0.02). However there was no difference in TBR between the AAA group and controls (mean (2 SD) 1.03 (0.46) vs. 1.05(0.31), p = 0.36). During a median 18 (interquartile range 8-35) months' follow-up 20 were repaired and four were confirmed ruptured. The level of metabolic activity as assessed by 18 F-FDG PET/CT in infra-renal AAA does not correlate with aortic size and does not differ between aneurysms and matched controls. (orig.)

  19. Endovascular Repair of Abdominal Aortic Aneurysms in the Presence of a Transplanted Kidney

    International Nuclear Information System (INIS)

    Silverberg, Daniel; Yalon, Tal; Halak, Moshe

    2015-01-01

    PurposeTo present our experience performing endovascular repair of abdominal aortic aneurysms in kidney transplanted patients.MethodsA retrospective review of all patients who underwent endovascular aneurysm repair (EVAR) for abdominal aortic aneurysms (AAA) performed at our institution from 2007 to 2014. We identified all patients who had previously undergone a kidney transplant. Data collected included: comorbidities, preoperative imaging modalities, indication for surgery, stent graft configurations, pre- and postoperative renal function, perioperative complications, and survival rates.ResultsA total of 267 EVARs were performed. Six (2 %) had a transplanted kidney. Mean age was 74 (range, 64–82) years; five were males. Mean time from transplantation to EVAR was 7.5 (range, 2–12) years. Five underwent preoperative planning with noncontrast modalities only. Devices used included bifurcated (n = 3), aortouniiliac (n = 2), and tube (n = 1) stent grafts. Technical success was achieved in all patients. None experienced deterioration in renal function. Median follow-up was 39 (range, 6–51) months. Four patients were alive at the time of the study. Two patients expired during the period of follow-up from unrelated causes.ConclusionsEVAR is an effective modality for the management of AAAs in the coexistence of a transplanted kidney. It can be performed with minimal morbidity and mortality without harming the transplanted kidney. Special consideration should be given to device configuration to minimize damage to the renal graft

  20. Endovascular Repair of Abdominal Aortic Aneurysms in the Presence of a Transplanted Kidney

    Energy Technology Data Exchange (ETDEWEB)

    Silverberg, Daniel, E-mail: silverberg-d@msn.com; Yalon, Tal; Halak, Moshe [The Chaim Sheba Medical Center, The Department of Vascular Surgery (Israel)

    2015-08-15

    PurposeTo present our experience performing endovascular repair of abdominal aortic aneurysms in kidney transplanted patients.MethodsA retrospective review of all patients who underwent endovascular aneurysm repair (EVAR) for abdominal aortic aneurysms (AAA) performed at our institution from 2007 to 2014. We identified all patients who had previously undergone a kidney transplant. Data collected included: comorbidities, preoperative imaging modalities, indication for surgery, stent graft configurations, pre- and postoperative renal function, perioperative complications, and survival rates.ResultsA total of 267 EVARs were performed. Six (2 %) had a transplanted kidney. Mean age was 74 (range, 64–82) years; five were males. Mean time from transplantation to EVAR was 7.5 (range, 2–12) years. Five underwent preoperative planning with noncontrast modalities only. Devices used included bifurcated (n = 3), aortouniiliac (n = 2), and tube (n = 1) stent grafts. Technical success was achieved in all patients. None experienced deterioration in renal function. Median follow-up was 39 (range, 6–51) months. Four patients were alive at the time of the study. Two patients expired during the period of follow-up from unrelated causes.ConclusionsEVAR is an effective modality for the management of AAAs in the coexistence of a transplanted kidney. It can be performed with minimal morbidity and mortality without harming the transplanted kidney. Special consideration should be given to device configuration to minimize damage to the renal graft.

  1. Aortic valve-sparing surgery in Marfan syndrome.

    Science.gov (United States)

    Nachum, Eyal; Shinfeld, Amichay; Kogan, Alexander; Preisman, Sergey; Levin, Shany; Raanani, Ehud

    2013-08-01

    Patients with Marfan syndrome are referred for cardiac surgery due to root aneurysm with or without aortic valve regurgitation. Because these patients are young and frequently present with normal-appearing aortic cusps, valve sparing is often recommended. However, due to the genetic nature of the disease, the durability of such surgery remains uncertain. Between February 2004 and June 2012, 100 patients in our department suffering from aortic aneurysm with aortic valve regurgitation underwent elective aortic valve-sparing surgery. Of them, 30 had Marfan syndrome, were significantly younger (30 +/- 13 vs. 53 +/- 16 years), and had a higher percentage of root aneurysm, compared with ascending aorta aneurysm in their non-Marfan counterparts. We evaluated the safety, durability, clinical and echocardiographic mid-term results of these patients. While no early deaths were reported in either group, there were a few major early complications in both groups. At follow-up (reaching 8 years with a mean of 34 +/- 26 months) there were no late deaths, and few major late complications in the Marfan group. Altogether, 96% and 78% of the patients were in New York Heart Association functional class I-II in the Marfan and non-Marfan groups respectively. None of the Marfan patients needed reoperation on the aortic valve. Freedom from recurrent aortic valve regurgitation > 3+ was 94% in the Marfan patients. Aortic valve-sparing surgery in Marfan symdrome patients is safe and yields good mid-term clinical outcomes.

  2. Cardiovascular Disease in Ageing: An Overview on Thoracic Aortic Aneurysm as an Emerging Inflammatory Disease

    Directory of Open Access Journals (Sweden)

    Calogera Pisano

    2017-01-01

    Full Text Available Medial degeneration associated with thoracic aortic aneurysm and acute aortic dissection was originally described by Erdheim as a noninflammatory lesion related to the loss of smooth muscle cells and elastic fibre fragmentation in the media. Recent evidences propose the strong role of a chronic immune/inflammatory process in aneurysm evocation and progression. The coexistence of inflammatory cells with markers of apoptotic vascular cell death in the media of ascending aorta with aneurysms and type A dissections raises the possibility that activated T cells and macrophages may contribute to the elimination of smooth muscle cells and degradation of the matrix. On the other hand, several inflammatory pathways (including TGF-β, TLR-4 interferon-γ, chemokines, and interferon-γ seem to be involved in the medial degeneration related to aged and dilated aorta. This is an overview on thoracic aortic aneurysm as an emerging inflammatory disease.

  3. Multimodality Imaging Approach towards Primary Aortic Sarcomas Arising after Endovascular Abdominal Aortic Aneurysm Repair: Case Series Report

    Energy Technology Data Exchange (ETDEWEB)

    Kamran, Mudassar, E-mail: kamranm@mir.wustl.edu; Fowler, Kathryn J., E-mail: fowlerk@mir.wustl.edu; Mellnick, Vincent M., E-mail: mellnickv@mir.wustl.edu [Washington University School of Medicine, Mallinckrodt Institute of Radiology (United States); Sicard, Gregorio A., E-mail: sicard@wudosis.wustl.edu [Washington University School of Medicine, Department of Surgery (United States); Narra, Vamsi R., E-mail: narrav@mir.wustl.edu [Washington University School of Medicine, Mallinckrodt Institute of Radiology (United States)

    2016-06-15

    Primary aortic neoplasms are rare. Aortic sarcoma arising after endovascular aneurysm repair (EVAR) is a scarce subset of primary aortic malignancies, reports of which are infrequent in the published literature. The diagnosis of aortic sarcoma is challenging due to its non-specific clinical presentation, and the prognosis is poor due to delayed diagnosis, rapid proliferation, and propensity for metastasis. Post-EVAR, aortic sarcomas may mimic other more common aortic processes on surveillance imaging. Radiologists are rarely knowledgeable about this rare entity for which multimodality imaging and awareness are invaluable in early diagnosis. A series of three pathologically confirmed cases are presented to display the multimodality imaging features and clinical presentations of aortic sarcoma arising after EVAR.

  4. Three-dimensional finite volume modelling of blood flow in simulated angular neck abdominal aortic aneurysm

    Science.gov (United States)

    Algabri, Y. A.; Rookkapan, S.; Chatpun, S.

    2017-09-01

    An abdominal aortic aneurysm (AAA) is considered a deadly cardiovascular disease that defined as a focal dilation of blood artery. The healthy aorta size is between 15 and 24 mm based on gender, bodyweight, and age. When the diameter increased to 30 mm or more, the rupture can occur if it is kept growing or untreated. Moreover, the proximal angular neck of aneurysm is categorized as a significant morphological feature with prime harmful effects on endovascular aneurysm repair (EVAR). Flow pattern in pathological vessel can influence the vascular intervention. The aim of this study is to investigate the blood flow behaviours in angular neck abdominal aortic aneurysm with simulated geometry based on patient’s information using computational fluid dynamics (CFD). The 3D angular neck AAA models have been designed by using SolidWorks Software. Consequently, CFD tools are used for simulating these 3D models of angular neck AAA in ANSYS FLUENT Software. Eventually, based on the results, we summarized that the CFD techniques have shown high performance in explaining and investigating the flow patterns for angular neck abdominal aortic aneurysm.

  5. Outcomes after open repair for ruptured abdominal aortic aneurysms in patients with friendly versus hostile aortoiliac anatomy

    NARCIS (Netherlands)

    van Beek, S. C.; Reimerink, J. J.; Vahl, A. C.; Wisselink, W.; Reekers, J. A.; Legemate, D. A.; Balm, R.

    2014-01-01

    In patients with a ruptured abdominal aortic aneurysm (RAAA), anatomic suitability for endovascular aneurysm repair (EVAR) depends on aortic neck and iliac artery characteristics. If the aortoiliac anatomy is unsuitable for EVAR ("hostile anatomy"), open repair (OR) is the next option. We

  6. Comparison of arterial stiffness and microcirculatory changes following abdominal aortic aneurysm grafting.

    LENUS (Irish Health Repository)

    Moloney, M A

    2012-02-01

    BACKGOUND: Abdominal aortic aneurysm (AAA) surgery provides a unique opportunity to study the impact of arterial stiffness on central haemodynamics, reflected in augmentation index (AI). The aneurysmal aorta is significantly stiffer than undilated age-matched aorta. AIM: We investigated whether replacement of an aneurysmal aorta with a compliant graft would result in a decrease in AI, which would thus decrease myocardial workload parameters. METHODS: Patients undergoing elective open or endovascular AAA repair were assessed with applanation tonometry and laser fluximetry pre-operatively, immediately and long-term post-operatively. RESULTS: Replacement of a small segment of abnormal conduit vessel resulted in improvements in AI, demonstrating that arterial stiffness can be surgically manipulated. CONCLUSIONS: These results reflect a decreased myocardial workload post-aortic grafting. This decrease in AI is important from a risk factor management perspective, and arterial stiffness should become a further recognised and screened for risk factor in patients with known aneurysmal disease.

  7. Comparison of arterial stiffness and microcirculatory changes following abdominal aortic aneurysm grafting.

    LENUS (Irish Health Repository)

    Moloney, M A

    2010-11-11

    BACKGOUND: Abdominal aortic aneurysm (AAA) surgery provides a unique opportunity to study the impact of arterial stiffness on central haemodynamics, reflected in augmentation index (AI). The aneurysmal aorta is significantly stiffer than undilated age-matched aorta. AIM: We investigated whether replacement of an aneurysmal aorta with a compliant graft would result in a decrease in AI, which would thus decrease myocardial workload parameters. METHODS: Patients undergoing elective open or endovascular AAA repair were assessed with applanation tonometry and laser fluximetry pre-operatively, immediately and long-term post-operatively. RESULTS: Replacement of a small segment of abnormal conduit vessel resulted in improvements in AI, demonstrating that arterial stiffness can be surgically manipulated. CONCLUSIONS: These results reflect a decreased myocardial workload post-aortic grafting. This decrease in AI is important from a risk factor management perspective, and arterial stiffness should become a further recognised and screened for risk factor in patients with known aneurysmal disease.

  8. Estimating overdiagnosis in Screening for Abdominal Aortic Aneurysm

    DEFF Research Database (Denmark)

    Johansson, Minna; Hansson, Anders; Brodersen, J.

    2015-01-01

    Clinical context: Abdominal aortic aneurysms (AAAs) are often asymptomatic until they rupture, when the death rate is greater than 80%. If diagnosed before rupture, AAA can be treated with surgery, which has a mortality of 4-5% Diagnostic change: Sweden, the UK, and the US have initiated screenin...

  9. Is tube repair of aortic aneurysm followed by aneurysmal change in the common iliac arteries?

    Science.gov (United States)

    Provan, J L; Fialkov, J; Ameli, F M; St Louis, E L

    1990-10-01

    To address the concern that tube repair of an abdominal aortic aneurysm might be followed by aneurysmal change in the common iliac arteries, 23 patients who had undergone the operation were re-examined 3 to 5 years later. Although 9 had had minimal ectasia of these arteries preoperatively, in none of the 23 was there symptomatic or radiologic evidence of aneurysmal change on follow-up. Measurements of the maximum intraluminal diameters were made by computed tomography; they indicated no significant differences between the preoperative and follow-up sizes of the common iliac arteries. The variation in time to follow-up also showed no significant correlation with change in artery diameter.

  10. Ruptured tuberculous false aneurysm of the abdominal aorta: a case report.

    Science.gov (United States)

    Mechchat, Alae; Lekehal, Brahim; Mesnaoui, Abbes; Ammar, Fannid; Bensaid, Younes

    2011-01-01

    Tuberculous false aneurysm of the aorta is rare and has an unpredictable complication of aneurysm rupture. We report a case of a 32-year old woman who was referred to the Department of Vascular Surgery, Avicenne Hospital for severe abdominal pain. Chest x-ray revealed miliary tuberculosis. Contrast enhanced computed tomography (CT) scan showed a false aortic aneurysm involving the juxtarenal aorta. Antituberculous treatment was started because of high presumption of tuberculosis. Five days later, the patient presented with symptoms of aneurysm rupture. She underwent an emergency a surgical resection of the aneurysm with repair of the aortic wall defect by a Dacron Silver patch. The histopathologic examination of the aortic wall showed features of tuberculosis.

  11. CD1d deficiency inhibits the development of abdominal aortic aneurysms in LDL receptor deficient mice.

    Directory of Open Access Journals (Sweden)

    Gijs H M van Puijvelde

    Full Text Available An abdominal aortic aneurysm (AAA is a dilatation of the abdominal aorta leading to serious complications and mostly to death. AAA development is associated with an accumulation of inflammatory cells in the aorta including NKT cells. An important factor in promoting the recruitment of these inflammatory cells into tissues and thereby contributing to the development of AAA is angiotensin II (Ang II. We demonstrate that a deficiency in CD1d dependent NKT cells under hyperlipidemic conditions (LDLr-/-CD1d-/- mice results in a strong decline in the severity of angiotensin II induced aneurysm formation when compared with LDLr-/- mice. In addition, we show that Ang II amplifies the activation of NKT cells both in vivo and in vitro. We also provide evidence that type I NKT cells contribute to AAA development by inducing the expression of matrix degrading enzymes in vSMCs and macrophages, and by cytokine dependently decreasing vSMC viability. Altogether, these data prove that CD1d-dependent NKT cells contribute to AAA development in the Ang II-mediated aneurysm model by enhancing aortic degradation, establishing that therapeutic applications which target NKT cells can be a successful way to prevent AAA development.

  12. Open Repair of Mycotic Abdominal Aortic Aneurysms With Biological Grafts

    DEFF Research Database (Denmark)

    Heinola, Ivika; Sörelius, Karl; Wyss, Thomas R

    2018-01-01

    BACKGROUND: The treatment of mycotic abdominal aortic aneurysm requires surgery and antimicrobial therapy. Since prosthetic reconstructions carry a considerable risk of reinfection, biological grafts are noteworthy alternatives. The current study evaluated the durability, infection resistance......, and midterm outcome of biological grafts in treatment of mycotic abdominal aortic aneurysm. METHODS AND RESULTS: All patients treated with biological graft in 6 countries between 2006 and 2016 were included. Primary outcome measures were 30- and 90-day survival, treatment-related mortality, and reinfection...... rate. Secondary outcome measures were overall mortality and graft patency. Fifty-six patients (46 males) with median age of 69 years (range 35-85) were included. Sixteen patients were immunocompromised (29%), 24 (43%) had concomitant infection, and 12 (21%) presented with rupture. Bacterial culture...

  13. A multidetector tomography protocol for follow-up of endovascular aortic aneurysm repair

    Directory of Open Access Journals (Sweden)

    Roberto Moraes Bastos

    2011-01-01

    Full Text Available OBJECTIVE: The purpose of this study was to improve the use of 64-channel multidetector computed tomography using lower doses of ionizing radiation during follow-up procedures in a series of patients with endovascular aortic aneurysm repair. METHODS: Thirty patients receiving 5 to 29 months of follow-up after endovascular aortic aneurysm repair were analyzed using a 64-channel multidetector computed tomography device by an exam that included pre-and postcontrast with both arterial and venous phases. Leak presence and type were classified based on the exam phase. RESULTS: Endoleaks were identified in 8/30 of cases; the endoleaks in 3/8 of these cases were not visible in the arterial phases of the exams. CONCLUSION: The authors conclude that multidetector computed tomography with pre-contrast and venous phases should be a part of the ongoing follow-up of patients undergoing endovascular aortic aneurysm repair. The arterial phase can be excluded when the aneurism is stable or regresses. These findings permit a lower radiation dose without jeopardizing the correct diagnosis of an endoleak.

  14. Elevation of Matrix Metalloproteinases in Different Areas of Ascending Aortic Aneurysms in Patients with Bicuspid and Tricuspid Aortic Valves

    Directory of Open Access Journals (Sweden)

    Salah A. Mohamed

    2012-01-01

    Full Text Available Our aim is to investigate the elevation of matrix proteins in tissues obtained from distal, above the sinotubular junction (proximal, concave, and convex sites of aneurysms in the ascending aorta using a simultaneous multiplex protein detection system. Tissues were collected from 41 patients with ascending aortic aneurysms. A total of 31 patients had a bicuspid aortic valve (BAV, whereas 10 had a tricuspid aortic valve (TAV. Concave and convex aortic site samples were collected from all patients, whereas proximal and distal convexity samples were obtained from 19 patients with BAV and 7 patients with TAV. Simultaneous detection of matrix metalloproteinases (MMPs and their inhibitors (TIMPs was performed at each of the four aortic sites. MMP-2 levels were higher in the concave aortic sites than in the convex aortic sites. In contrast, MMP-8 levels were higher in the convex sites than in the concave sites, as were MMP-9 levels. In both BAV and TAV patients, TIMP-3 levels were higher in the concave sites than in the convex sites. However, TIMP-2 and TIMP-4 levels were significantly elevated in the sinotubular proximal aorta of BAV patients. Simultaneous detection of MMPs and TIMPs revealed different levels at different aortic sites in the same patient.

  15. Reverse extra-anatomic aortic arch debranching procedure allowing thoracic endovascular aortic repair of a chronic ascending aortic aneurysm

    Directory of Open Access Journals (Sweden)

    Ludovic Canaud, MD, PhD

    2018-06-01

    Full Text Available A 79-year-old woman was admitted with a large chronic dissecting ascending aortic aneurysm starting 5 mm distal to the ostia of the left coronary artery and ending immediately proximal to the innominate artery. A reverse extra-anatomic aortic arch debranching procedure was performed. During the same operative time, through a transapical approach, a thoracic stent graft was deployed with the proximal landing zone just distal to the coronary ostia and the distal landing zone excluding the origin of the left common carotid artery. The postoperative course was uneventful. Computed tomography at 12 months documented patent extra-anatomic aortic arch debranching and no evidence of endoleak. Keywords: Ascending aorta, Thoracic aorta, Aortic dissection, Stent graft

  16. Commentary on “Inhibition of interleukin-1beta decreases aneurysm formation and progression in a novel model of thoracic aortic aneurysms”

    Directory of Open Access Journals (Sweden)

    Yonghua Bi

    2015-09-01

    Full Text Available Aortic aneurysm is a silent but life-threatening disease, whose pathogenesis remains poorly understood. Aneurysm models have been induced in small animals to study its pathogenesis, Johnston WF et al. successfully induced a novel model of thoracic aortic aneurysms (TAA by periadventitial application of elastase in mice. We comment on this model according to our experiment. We hypothesize that endogenous MMPs, especially MMP2, play a vital role in complex repair process of aneurysmal wall, which should be a key target in the investigation and treatment of aortic aneurysms.

  17. Mass or high-risk screening for abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Lindholt, Jes Sanddal; Henneberg, E W; Fasting, H

    1997-01-01

    Abdominal aortic aneurysm (AAA) is known to be associated with various diseases, especially hypertension, acute myocardial infarction (AMI), chronic obstructive airway disease (COAD), and intermittent claudication. These associations have led to a debate about whether screening of older men for AAA...

  18. Characterization of the mechanical behavior and pathophysiological state of abdominal aortic aneurysms based on 4D ultrasound strain imaging

    Science.gov (United States)

    Wittek, Andreas; Blase, Christopher; Derwich, Wojciech; Schmitz-Rixen, Thomas; Fritzen, Claus-Peter

    2017-06-01

    Abdominal aortic aneurysms (AAA) are a degenerative disease of the human aortic wall that may lead to weakening and eventually rupture of the wall with high mortality rates. Since the currently established criterion for surgical or endovascular treatment of the disease is imprecise in the individual case and treatment is not free of complications, the need for additional patient-individual biomarkers for short-term AAA rupture risk as basis for improved clinical decision making. Time resolved 3D ultrasound combined with speckle tracking algorithms is a novel non-invasive medical imaging technique that provides full-field displacement and strain measurements of aortic and aneurysmal wall motion. This is patient-individual information that has not been used so far to assess wall strength and rupture risk. The current study uses simple statistical indices of the heterogeneous spatial distribution of in-plane strain components as biomarkers for the pathological state of the aortic and aneurysmal wall. The pathophysiological rationale behind this approach are the known changes in microstructural composition of the aortic wall with progression of AAA development that results in increased stiffening and heterogeneity of the walls mechanical properties and in decreased wall strength. In a comparative analysis of the aortic wall motion of young volunteers without known cardiovascular diseases, aged arteriosclerotic patients without AAA, and AAA patients, mean values of all in-plane strain components were significantly reduced, and the heterogeneity of circumferential strain was significantly increased in the AAA group compared to both other groups. The capacity of the proposed method to differentiate between wall motion of aged, arteriosclerotic patients and AAA patients is a promising step towards a new method for in vivo assessment of AAA wall strength or stratification of AAA rupture risk as basis for improved clinical decision making on surgical or endovascular

  19. Non-coronary sinus of Valsalva aneurysm diagnosed after a road traffic accident

    OpenAIRE

    Ribeiro, A; Fernandes, F; Costeira, A; Simões, A; Rodrigues, P

    1999-01-01

    A 38 year old man with a huge unruptured sinus of Valsalva aneurysm, complicated with severe valvar aortic regurgitation, is described. The aneurysm was detected by echocardiography in the asymptomatic patient who presented with an intense precordial diastolic rumble after a road traffic accident. The patient had successful surgery for the aneurysm and aortic valve replacement. Possible aetiologies for the aneurysm and a brief revision of clinical aspects and treatment are discussed.


Keywor...

  20. Background differences in baseline and stimulated MMP levels influence abdominal aortic aneurysm susceptibility

    Science.gov (United States)

    Dale, Matthew A.; Ruhlman, Melissa K.; Zhao, Shijia; Meisinger, Trevor; Gu, Linxia; Swier, Vicki J.; Agrawal, Devendra K.; Greiner, Timothy C.; Carson, Jeffrey S.; Baxter, B. Timothy; Xiong, Wanfen

    2015-01-01

    Objective Evidence has demonstrated profound influence of genetic background on cardiovascular phenotypes. Murine models in Marfan syndrome (MFS) have shown that genetic background-related variations affect thoracic aortic aneurysm formation, rupture, and lifespan of mice. MFS mice with C57Bl/6 genetic background are less susceptible to aneurysm formation compared to the 129/SvEv genetic background. In this study, we hypothesize that susceptibility to abdominal aortic aneurysm (AAA) will be increased in 129/SvEv mice versus C57Bl/6 mice. We tested this hypothesis by assessing differences in aneurysm size, tissue properties, immune response, and MMP expression. Methods Mice of C57Bl/6 or 129/SvEv background underwent AAA induction by periaortic application of CaCl2. Baseline aortic diameters, tissue properties and MMP levels were measured. After aneurysm induction, diameters, MMP expression, and immune response (macrophage infiltration and bone marrow transplantation) were measured. Results Aneurysms were larger in 129/SvEv mice than C57Bl/6 mice (83.0% ± 13.6 increase compared to 57.8% ± 6.4). The aorta was stiffer in the 129/SvEv mice compared to C57Bl/6 mice (952.5 kPa ± 93.6 versus 621.4 kPa ± 84.2). Baseline MMP-2 and post-aneurysm MMP-2 and -9 levels were higher in 129/SvEv aortas compared to C57Bl/6 aortas. Elastic lamella disruption/fragmentation and macrophage infiltration were increased in 129/SvEv mice. Myelogenous cell reversal by bone marrow transplantation did not affect aneurysm size. Conclusions These data demonstrate that 129/SvEv mice are more susceptible to AAA compared to C57Bl/6 mice. Intrinsic properties of the aorta between the two strains of mice, including baseline expression of MMP-2, influence susceptibility to AAA. PMID:26546710

  1. Endovascular Treatment of Descending Thoracic Aortic Aneurysms with the EndoFit Stent-Graft

    International Nuclear Information System (INIS)

    Saratzis, N.; Saratzis, Athanasios; Melas, N.; Ginis, G.; Lioupis, A.; Lykopoulos, D.; Lazaridis, J.; Kiskinis, Dimitrios

    2007-01-01

    Objective. To evaluate the mid-term feasibility, efficacy, and durability of descending thoracic aortic aneurysm (DTAA) exclusion using the EndoFit device (LeMaitre Vascular). Methods. Twenty-three (23) men (mean age 66 years) with a DTAA were admitted to our department for endovascular repair (21 were ASA III+ and 2 refused open repair) from January 2003 to July 2005. Results. Complete aneurysm exclusion was feasible in all subjects (100% technical success). The median follow-up was 18 months (range 8-40 months). A single stent-graft was used in 6 cases. The deployment of a second stent-graft was required in the remaining 17 patients. All endografts were attached proximally, beyond the left subclavian artery, leaving the aortic arch branches intact. No procedure-related deaths have occurred. A distal type I endoleak was detected in 2 cases on the 1 month follow-up CT scan, and was repaired with reintervention and deployment of an extension graft. A nonfatal acute myocardial infarction occurred in 1 patient in the sixth postoperative month. Graft migration, graft infection, paraplegia, cerebral or distal embolization, renal impairment or any other major complications were not observed. Conclusion. The treatment of DTAAs using the EndoFit stent-graft is technically feasible. Mid-term results in this series are promising

  2. Marfan's syndrome presenting with abdominal aortic aneurysm: A ...

    African Journals Online (AJOL)

    We present the case of a 16-year old student with Marfan's syndrome and abdominal aortic aneurysm who presented with a diagnostic conundrum. He presented with a three months history of progressive painful left upper abdominal mass and back pain. It became severe in the last two weeks before presentation and was ...

  3. Infected aortic aneurysm presenting as prevertebral abscess in magnetic resonance imaging: A case report

    International Nuclear Information System (INIS)

    Yu, Jung Re; Ko, Seong Joo; Heo, Sang Taek; Kim, Jin Seok; Kim, Seung Hyoung

    2013-01-01

    The differential diagnosis of mass-like lesions around the aorta includes saccular pseudoaneurysms and abscesses. A 69-year-old female was admitted with multiple abscesses and fluid collections in several muscles and joints. Methicillin susceptible Staphylococcus aureus was isolated from her blood and pus. Even though she was treated with repeated operations and appropriate antibiotics, her conditions worsened with persistent fever and newly developed abscesses at other sites. Serial enhanced computed tomography (CT) revealed a newly developed saccular abdominal aortic aneurysm in the retroaortic space at the celiac axis level. However, the infected aortic aneurysm mimicked a prevertebral abscess on enhanced spinal magnetic resonance imaging (MRI) due to its heterogeneous signal intensity caused by intraaneurysmal turbulent blood flow. We report to alert the pitfall in the diagnosis of saccular aortic aneurysm using spinal MRI and the importance of serial enhanced CT study in highly suspicious patients.

  4. The same sequence variant on 9p21 associates with myocardial infarction, abdominal aortic aneurysm and intracranial aneurysm

    DEFF Research Database (Denmark)

    Helgadottir, Anna; Thorleifsson, Gudmar; Magnusson, Kristinn P

    2008-01-01

    . Here we report that rs10757278-G is associated with, in addition to CAD, abdominal aortic aneurysm (AAA; odds ratio (OR) = 1.31, P = 1.2 x 10(-12)) and intracranial aneurysm (OR = 1.29, P = 2.5 x 10(-6)), but not with T2D. This variant is the first to be described that affects the risk of AAA...

  5. Right-sided aortic arch with Kommerell′s aneurysm

    Directory of Open Access Journals (Sweden)

    Sanjay Orathi Patangi

    2014-01-01

    Full Text Available We present a case report of a 55-year-old lady who presented with progressive dysphagia and was diagnosed with a Kommerell′s aneurysm and a right-sided aortic arch. This case report outlines our management strategy and the challenges encountered during the perioperative period in a patient with this rare anomaly.

  6. [Aortic valve preservation in Marfan syndrome. Initial experience].

    Science.gov (United States)

    Forteza, Alberto; Cortina, Jose M; Sánchez, Violeta; Centeno, Jorge; López, M Jesús; Pérez de la Sota, Enrique; Rufilanchas, Juan J

    2007-05-01

    Preservation of the aortic valve using the technique described by David has been shown to be as effective as the Bentall-De Bono procedure. It avoids both the need for long-term anticoagulation and the complications associated with mechanical prostheses. We report our initial experience using this technique in patients with Marfan syndrome. Between April 2004 and April 2006, we used the David reimplantation technique in 40 patients with an aortic root aneurysm. Eighteen patients had Marfan syndrome. Their median age was 29 years (13-55 years). Echocardiography showed that the median diameter of the aortic sinus was 53 mm (46-59 mm). In 17 patients, aortic valve preservation was possible. No patient died during hospitalization and there were no significant complications. On echocardiography at discharge, no patient had greater than grade-II aortic regurgitation. During a median follow-up period of 8 months (1-24 months), one patient died due to rupture of an abdominal aneurysm. The others are all in New York Heart Association class I. Preservation of the aortic valve by means of valve reimplantation produced excellent results. It avoided both the thromboembolic and hemorrhagic complications associated with prostheses and the need for long-term anticoagulation. If reimplanted valves continue to function adequately over the long term, this technique should become the treatment of choice for aneurysms of the ascending aorta in patients with Marfan syndrome.

  7. Early and midterm outcomes of open stent-graft treatment for distal aortic arch aneurysm

    International Nuclear Information System (INIS)

    Yamada, Kazunori; Mochizuki, Takaaki; Tsubota, Hideki; Funamoto, Masaki

    2008-01-01

    The aim of this study was to investigate early and late outcomes for open stent-graft treatment, which was introduced as a less-invasive technique for thoracic aortic aneurysm of the distal arch, and to clarify the validity of and indications for this treatment. We retrospectively investigated 38 patients with thoracic aortic aneurysm of the distal arch who underwent open stent-graft placement at our hospital between June 2000 and September 2006. Five patients died in hospital (hospital mortality 13.2%). Age at the time of surgery and onset of postoperative paraplegia were identified as risk factors. Four patients (10.5%) had postoperative paraplegia, but no significant risk factors were seen. The size of the aneurysm was clearly reduced in 18 of the 25 patients (75.8%), in whom computed tomography was performed after discharge, and late outcomes were good. Mural thrombus thickness on the stent landing zone of <4 mm was a predictor for aneurysm shrinkage. Seven patients died during the late period, and the 5-year survival rate among hospital survivors was 80.1%. Early outcomes for open stent-graft are not necessarily good, and late survival is also not excellent. Open stent-graft thus cannot be regarded as an ideal technique for all patients with distal aortic arch aneurysm. However, after aneurysm shrinkage was confirmed during the early period, late outcomes were good. Absence of thick mural thrombus on the stent landing zone may represent a good indication for open stent-graft surgery. (author)

  8. Magnetic Resonance angiography with bolus contrast agent in abdominal aortic aneurysms

    International Nuclear Information System (INIS)

    Di Cesare, E.; Cerone, G.; Giordano, A.V.; Marsili, L.; Barile, A.; Michelini, O.; Masciocchi, C.; Spartera, C.

    2000-01-01

    Purpose of this paper is to investigate the potentials of 3D breath-hold contrast-enhanced Magnetic Resonance Angiography (MRA) in the diagnosis, follow-up and treatment planning of abdominal aortic aneurysms. Twenty-four patients with infrarenal aortic aneurysm underwent MRA. It was used a 1.5 T unit (GE Horizon, Echospeed 8.2), a phased array surface coil and 3D Fast SPGR T1-weighted sequences acquired on the coronal plane during patient breath-hold and after contrast agent i.v. administration. A bolus-test was done before angiography to optimize imaging delay time. After 3D MRA a Fast-SPGR T1-weighted sequence was acquired on the axial plane. The 3D MRA source images were processed with the MIP algorithm. Qualitative and quantitative analyses were carried out. Helical CT was performed in 6 cases and DSA in 7 cases. Surgery was the reference standard in 15 patients. MRA depicted aneurysm thrombosis in 22 cases, carrefour involvement in 18 cases and iliac arteries involvement in 3 cases. Accessory renal arteries were shown in 4 cases; iliac artery stenosis was associated in 5 cases. There was agreement between MR and Helical CT and DSA findings: surgery confirmed MRA results in 15/15 cases. 3D contrast-enhanced MRA can be considered the method of choice in the follow-up and treatment planning of abdominal aortic aneurysms, because it provides both angiographic and tomographic images: this allows to obtain more information, noninvasively and without the use of ionizing radiations [it

  9. Endovascular repair of abdominal aortic aneurysm.

    Science.gov (United States)

    Paravastu, Sharath Chandra Vikram; Jayarajasingam, Rubaraj; Cottam, Rachel; Palfreyman, Simon J; Michaels, Jonathan A; Thomas, Steven M

    2014-01-23

    An abnormal dilatation of the abdominal aorta is referred to as an abdominal aortic aneurysm (AAA). Due to the risk of rupture, surgical repair is offered electively to individuals with aneurysms greater than 5.5 cm in size. Traditionally, conventional open surgical repair (OSR) was considered the first choice approach. However, over the past two decades endovascular aneurysm repair (EVAR) has gained popularity as a treatment option. This article intends to review the role of EVAR in the management of elective AAA. To assess the effectiveness of EVAR versus conventional OSR in individuals with AAA considered fit for surgery, and EVAR versus best medical care in those considered unfit for surgery. This was determined by the effect on short, intermediate and long-term mortality, endograft related complications, re-intervention rates and major complications. The Cochrane Peripheral Vascular Diseases Group Trials Search Co-ordinator (TSC) searched the Specialised Register (January 2013) and the Cochrane Central Register of Controlled Trials (CENTRAL) (2012, Issue 12). The TSC also searched trial databases for details of ongoing or unpublished studies. Prospective randomised controlled trials (RCTs) comparing EVAR with OSR in individuals with AAA considered fit for surgery. and comparing EVAR with best medical care in individuals considered unfit for surgery. We excluded studies with inadequate data or using an inadequate randomisation technique. Three reviewers independently evaluated trials for appropriateness for inclusion and extracted data using pro forma designed by the Cochrane PVD Group. We assessed the quality of trials using The Cochrane Collaboration's 'Risk of bias' tool. We entered collected data in to Review Manager (version 5.2.3) for analysis. Where direct comparisons could be made, we determined odds ratios (OR). We tested studies for heterogeneity and, when present, we used a random-effects model; otherwise we used a fixed-effect model. We tabulated

  10. Abdominal aortic aneurysm development in men following a "normal" aortic ultrasound scan.

    Science.gov (United States)

    Hafez, H; Druce, P S; Ashton, H A

    2008-11-01

    To determine predictors related to abdominal aortic aneurysm (AAA) development following a "normal" aortic ultrasound scan. Over a 23-year period, 22 961 men participated in an AAA screening programme. Maximum aortic diameter of less than 30 mm was deemed "normal". 4308 of these "normal" individuals were later re-scanned at intervals for research purposes. AAA prevalence was 4.4% at initial scanning. In those with a normal scan, 46 patients subsequently presented with AAAs incidentally detected and 120 (2.8%) had AAAs identified as part of the ongoing surveillance. The median initial aortic size of these 166 men was 25 mm (range 15-29 mm). Over the follow-up period, there have been 24 (14%) AAA-related deaths, 24 patients underwent successful AAA surgery and 36 died of unrelated causes. In those with an initial aortic diameter of <25 mm who later developed an AAA, the odds ratio for AAA-related mortality was 2 (95% CI 1-4.1, p=0.03, x(2)). AAAs can develop following an initial "normal" scan and men with an aortic diameters of 25-29 mm appear to be at greater risk. Surveillance for this sub-group may further reduce the incidence of undiagnosed AAA and AAA-related mortality.

  11. The cardiac cycle is a major contributor to variability in size measurements of abdominal aortic aneurysms by ultrasound

    DEFF Research Database (Denmark)

    Grøndal, Nikolaj Fibiger; Bramsen, Morten; Thomsen, Marie Dahl

    2012-01-01

    The objective of the study was to evaluate the impact of the cardiac cycle on ultrasound measurements of abdominal aortic aneurysm (AAA) diameters.......The objective of the study was to evaluate the impact of the cardiac cycle on ultrasound measurements of abdominal aortic aneurysm (AAA) diameters....

  12. Endovascular Treatment of Various Aortic Pathologies: Review of the Latest Data and Technologies.

    Science.gov (United States)

    Maeda, Koji; Ohki, Takao; Kanaoka, Yuji

    2018-06-01

    The technologies and innovations applicable to endovascular treatment for complex aortic pathologies have progressed rapidly over the last two decades. Although the initial outcomes of an endovascular aortic repair have been excellent, as long-term data became available, complications including endoleaks, endograft migration, and endograft infection have become apparent and are of concern. Previously, the indication for endovascular therapy was restricted to descending thoracic aortic aneurysms and abdominal aortic aneurysms. However, its indication has expanded along with the improvement of techniques and devices, and currently, it has become possible to treat pararenal aortic aneurysms and Crawford type 4 thoracoabdominal aortic aneurysm (TAAA) using the off-the-shelf devices. Additionally, custom-made devices allow for the treatment of arch or more extensive TAAAs. Endovascular treatment is applied not only to aneurysms but also to acute/chronic dissections. However, long-term outcomes are still unclear. This article provides an overview of available devices and the results of endovascular treatment for various aortic pathologies.

  13. Arch translocation and the intra-arch elephant-trunk technique with collared graft for extended chronic dissecting aortic aneurysm

    Directory of Open Access Journals (Sweden)

    Ikenaga Shigeru

    2013-01-01

    Full Text Available Abstract Management of extensive, chronic, dissecting aortic aneurysms after prior repair of the ascending aorta presents a technical challenge for surgeons. A symptomatic 64-year-old patient was admitted for elective surgical repair of an aortic annular dilatation, causing severe aortic regurgitation, and a Crawford type II extended thoracoabdominal aneurysm, 4 years after he underwent primary repair of an acute aortic dissection. The aorta was diffusely dilated, and there were no sites beyond the distal aortic arch where anastomosis could be performed. We successfully performed total aortic replacement with a 2-stage strategy, using an arch translocation technique and an intra-arch elephant-trunk technique.

  14. Trends in treatment of ruptured abdominal aortic aneurysm: impact of endovascular repair and implications for future care.

    Science.gov (United States)

    Park, Brian D; Azefor, Nchang; Huang, Chun-Chih; Ricotta, John J

    2013-04-01

    Our aim was to determine national trends in treatment of ruptured abdominal aortic aneurysm (RAAA), with specific emphasis on open surgical repair (OSR) and endovascular aneurysm repair (EVAR) and its impact on mortality and complications. Data from the Nationwide Inpatient Sample (NIS) from 2005 to 2009 were queried to identify patients older than 59 years with RAAA. Three groups were studied: nonoperative (NO), EVAR, and OSR. Chi-square analysis was used to determine the relationship between treatment type and patient demographics, clinical characteristics, and hospital type. The impact of EVAR compared with OSR on mortality and overall complications was examined using logistic regression analysis. We identified 21,206 patients with RAAA from 2005 to 2009, of which 16,558 (78.1%) underwent operative repair and 21.8% received no operative treatment. In the operative group, 12,761 (77.1%) underwent OSR and 3,796 (22.9%) underwent EVAR. Endovascular aneurysm repair was more common in teaching hospitals (29.1% vs 15.2%, p < .0001) and in urban versus rural settings. Nonoperative approach was twice as common in rural versus urban hospitals. Reduced mortality was seen in patients transferred from another institutions (31.2% vs 39.4%, p = 0.014). Logistic regression analysis demonstrated a benefit of EVAR on both complication rate (OR = 0.492; CI, 0.380-0.636) and mortality (OR=0.535; CI, 0.395-0.724). Endovascular aneurysm repair use is increasing for RAAA and is more common in urban teaching hospitals while NO therapy is more common in rural hospitals. Endovascular aneurysm repair is associated with reduced mortality and complications across all age groups. Efforts to reduce mortality from RAAA should concentrate on reducing NO and OSR in patients who are suitable for EVAR. Copyright © 2013 American College of Surgeons. Published by Elsevier Inc. All rights reserved.

  15. Elective reconstruction of thoracoabdominal aortic aneurysm type IV by transabdominal approach

    Directory of Open Access Journals (Sweden)

    Marjanović Ivan

    2012-01-01

    Full Text Available Introduction. Thoracoabdominal aortic aneurysm (TAAA type IV represents an aortic dilatation from the level of the diaphragmatic hiatus to the iliac arteries branches, including visceral branches of the aorta. In the traditional procedure of TAAA type IV repair, the body is opened using thoractomy and laparotomy in order to provide adequate exposure of the descending thoracic and abdominal aorta for safe aortic reconstruction. Case report. We reported a 71-yearold man with elective reconstruction of the TAAA type IV performed by transabdominal approach. Computed tomography scans angiography revealed a TAAA type IV with diameter of 62 mm in the region of celiac trunk and superior mesenteric artery branching, and the largest diameter of 75 mm in the infrarenal aortic level. The patient comorbidity included a chronic obstructive pulmonary disease and hypertension, therefore he was treated for a prolonged period. In preparation for the planned aortic reconstruction asymptomatic carotid disease (occlusion of the left internal carotid artery and subtotal stenosis of the right internal carotid artery was diagnosed. Within the same intervention percutaneous transluminal angioplasty with stent placement in right internal carotid artery was made. In general, under endotracheal anesthesia and epidural analgesia, with transabdominal approach performed aortic reconstruction with tubular dakron graft 24 mm were, and reimplantation of visceral aortic branches into the graft performed. Postoperative course was uneventful, and the patient was discharged on the postoperative day 17. Control computed tomography scan angiography performed three months after the operation showed vascular state of the patient to be in order. Conclusion. Complete transabdominal approach to TAAA type IV represents an appropriate substitute for thoracoabdominal approach, without compromising safety of the patient. This approach is less traumatic, especially in patients with impaired

  16. Modelling and numerical simulation of the in vivo mechanical response of the ascending aortic aneurysm in Marfan syndrome.

    Science.gov (United States)

    García-Herrera, Claudio M; Celentano, Diego J; Herrera, Emilio A

    2017-03-01

    Marfan syndrome (MFS) is a genetic disorder that affects connective tissue, impairing cardiovascular structures and function, such as heart valves and aorta. Thus, patients with Marfan disease have a higher risk of developing circulatory problems associated with mitral and aortic valves prolapse, manifested as dilated aorta and aortic aneurysm. However, little is known about the biomechanical characteristics of these structures affected with MFS. This study presents the modelling and simulation of the mechanical response of human ascending aortic aneurysms in MFS under in vivo conditions with intraluminal pressures within normotensive and hypertensive ranges. We obtained ascending aortic segments from five adults with MFS subjected to a vascular prosthesis implantation replacing an aortic aneurysm. We characterised the arterial samples via ex vivo tensile test measurements that enable fitting the material parameters of a hyperelastic isotropic constitutive model. Then, these material parameters were used in a numerical simulation of an ascending aortic aneurysm subjected to in vivo normotensive and hypertensive conditions. In addition, we assessed different constraints related to the movement of the aortic root. Overall, our results provide not only a realistic description of the mechanical behaviour of the vessel, but also useful data about stress/stretch-based criteria to predict vascular rupture. This knowledge may be included in the clinical assessment to determine risk and indicate surgical intervention.

  17. Induction of continuous expanding infrarenal aortic aneurysms in a large porcine animal model

    DEFF Research Database (Denmark)

    Kloster, Brian Ozeraitis; Lund, Lars; Lindholt, Jes S.

    2015-01-01

    frequent complication was a neurological deficit in the lower limbs. ConclusionIn pigs it’s possible to induce continuous expanding AAA’s based upon proteolytic degradation and pathological flow, resembling the real life dynamics of human aneurysms. Because the lumbars are preserved, it’s also a potential......BackgroundA large animal model with a continuous expanding infrarenal aortic aneurysm gives access to a more realistic AAA model with anatomy and physiology similar to humans, and thus allows for new experimental research in the natural history and treatment options of the disease. Methods10 pigs......, hereafter the pigs were euthanized for inspection and AAA wall sampling for histological analysis. ResultsIn group A, all pigs developed continuous expanding AAA’s with a mean increase in AP-diameter to 16.26 ± 0.93 mm equivalent to a 57% increase. In group B the AP-diameters increased to 11.33 ± 0.13 mm...

  18. A Variant in LDLR Is Associated With Abdominal Aortic Aneurysm

    NARCIS (Netherlands)

    Bradley, Declan T.; Hughes, Anne E.; Badger, Stephen A.; Jones, Gregory T.; Harrison, Seamus C.; Wright, Benjamin J.; Bumpstead, Suzannah; Baas, Annette F.; Gretarsdottir, Solveig; Burnand, Kevin; Child, Anne H.; Clough, Rachel E.; Cockerill, Gillian; Hafez, Hany; Scott, D. Julian A.; Ariens, Robert A. S.; Johnson, Anne; Sohrabi, Soroush; Smith, Alberto; Thompson, Matthew M.; van Bockxmeer, Frank M.; Waltham, Matthew; Matthiasson, Stefan E.; Thorleifsson, Gudmar; Thorsteinsdottir, Unnur; Blankensteijn, Jan D.; Teijink, Joep A. W.; Wijmenga, Cisca; de Graaf, Jacqueline; Kiemeney, Lambertus A.; Wild, John B.; Edkins, Sarah; Gwilliam, Rhian; Hunt, Sarah E.; Potter, Simon; Lindholt, Jes S.; Golledge, Jonathan; Norman, Paul E.; van Rij, Andre; Powell, Janet T.; Eriksson, Per; Stefansson, Kari; Thompson, John R.; Humphries, Steve E.; Sayers, Robert D.; Deloukas, Panos; Samani, Nilesh J.; Bown, Matthew J.

    2013-01-01

    Background Abdominal aortic aneurysm (AAA) is a common cardiovascular disease among older people and demonstrates significant heritability. In contrast to similar complex diseases, relatively few genetic associations with AAA have been confirmed. We reanalyzed our genome-wide study and carried

  19. Collected world and single center experience with endovascular treatment of ruptured abdominal aortic aneurysms.

    NARCIS (Netherlands)

    Veith, F.J.; Lachat, M.; Mayer, D.; Malina, M.; Holst, J.; Mehta, M.; Verhoeven, E.L.; Larzon, T.; Gennai, S.; Coppi, G.; Lipsitz, E.C.; Gargiulo, N.J.; Vliet, J.A. van der; Blankensteijn, J.D.; Buth, J.; Lee, W.A.; Biasiol, G.; Deleo, G.; Kasirajan, K.; Moore, R.; Soong, C.V.; Cayne, N.S.; Farber, M.A.; Raithel, D.; Greenberg, R.K.; Sambeek, M.R. van; Brunkwall, J.S.; Rockman, C.B.; Hinchliffe, R.J.

    2009-01-01

    BACKGROUND: Case and single center reports have documented the feasibility and suggested the effectiveness of endovascular aneurysm repair (EVAR) of ruptured abdominal aortic aneurysms (RAAAs), but the role and value of such treatment remain controversial. OBJECTIVE: To clarify these we examined a

  20. Collected World and Single Center Experience With Endovascular Treatment of Ruptured Abdominal Aortic Aneurysms

    NARCIS (Netherlands)

    Veith, Frank J.; Lachat, Mario; Mayer, Dieter; Malina, Martin; Holst, Jan; Mehta, Manish; Verhoeven, Eric L. G.; Larzon, Thomas; Gennai, Stefano; Coppi, Gioacchino; Lipsitz, Evan C.; Gargiulo, Nicholas J.; van der Vliet, J. Adam; Blankensteijn, Jan; Buth, Jacob; Lee, W. Anthony; Biasi, Giorgio; Deleo, Gaetano; Kasirajan, Karthikeshwar; Moore, Randy; Soong, Chee V.; Cayne, Neal S.; Farber, Mark A.; Raithel, Dieter; Greenberg, Roy K.; van Sambeek, Marc R. H. M.; Brunkwall, Jan S.; Rockman, Caron B.; Hinchliffe, Robert J.

    2009-01-01

    Background: Case and single center reports have documented the feasibility and suggested the effectiveness of endovascular aneurysm repair (EVAR) of ruptured abdominal aortic aneurysms (RAAAs), but the role and value of such treatment remain controversial. Objective: To clarify these we examined a

  1. Long-term benefit and cost-effectiveness analysis of screening for abdominal aortic aneurysms from a randomized controlled trial

    DEFF Research Database (Denmark)

    Lindholt, J S; Sørensen, J; Søgaard, Rikke

    2010-01-01

    The aim was to estimate long-term mortality benefits and cost-effectiveness of screening for abdominal aortic aneurysm (AAA) in men aged 64-73 years.......The aim was to estimate long-term mortality benefits and cost-effectiveness of screening for abdominal aortic aneurysm (AAA) in men aged 64-73 years....

  2. Abdominal aortic aneurysms

    DEFF Research Database (Denmark)

    Lindholt, Jes S.

    2010-01-01

    Although the number of elective operations for abdominal aortic aneurysms (AAA) is increasing, the sex- and age-standardised mortality rate of AAAs continues to rise, especially among men aged 65 years or more. The lethality of ruptured AAA continues to be 80-95%, compared with 5-7% by elective...... surgery of symptomfree AAA. In order to fulfil all WHO, European, and Danish criteria for screening, a randomised hospitalbased screening trial of 12,639 65-73 year old men in Viborg County (Denmark) was initiated in 1994. It seemed that US screening is a valid, suitable and acceptable method of screening...... patients without previous hospital discharge diagnoses due to cardiovascular disease than among similar men without AAA. The absolute risk difference after 5 years was 16%. So, they will benefit from general cardiovascular preventive action as smoking cessation, statins and low-dose aspirin, which could...

  3. Medium-Term Outcomes Following Endovascular Repair of Infrarenal Abdominal Aortic Aneurysms with an Unfavourable Proximal Neck

    International Nuclear Information System (INIS)

    Saha, Prakash; Hughes, John; Patel, Ashish S.; Donati, Tommaso; Sallam, Morad; Patel, Sanjay D.; Bell, Rachel E.; Katsanos, Konstantinos; Modarai, Bijan; Zayed, Hany A.

    2015-01-01

    PurposeThe purpose of this study was to evaluate medium-term outcomes following endovascular repair of abdominal aortic aneurysms (EVAR) with unfavourable neck anatomy using stent grafts with a 36 mm or larger proximal diameter.Materials and MethodsA retrospective review of 27 patients who underwent elective EVAR between 2006 and 2008 using a stent graft with a 36 mm or larger proximal diameter was carried out. All patients had computed tomography angiography (CTA) for procedure planning, and detailed assessment of the aneurysm neck was performed using a three-dimensional CTA workstation. Patients were followed up with CTA at 3 and 12 months and annual duplex thereafter.ResultsThe median aneurysm diameter was 7 cm, and the median aneurysm neck diameter was 31 mm. Cook Zenith stent grafts were used in all patients, with a proximal diameter of 36 mm (n = 25) and 40 mm (n = 2). Primary and assisted primary technical success rates were 74 and 93 %, respectively. The follow-up period ranged from 62 to 84 months, with a median of 72 months. 15 patients died during follow-up. Two patients died from aortic rupture, and the remaining patients died from cardiac disease (n = 4), chest sepsis (n = 6), cancer (n = 2) and renal failure (n = 1). Complications included type I endoleak (n = 5), limb occlusion (n = 2), limb stenosis (n = 2), limb kinking (n = 1), dissection of an artery (n = 1), occlusion of a femorofemoral cross-over graft (n = 1) and poor attachment of a distal limb (n = 1).ConclusionsEVAR using stent grafts in the presence of an unfavourable neck has a high risk of complications. Medium-term survival in this group is low but mainly due to patient co-morbidities

  4. Medium-Term Outcomes Following Endovascular Repair of Infrarenal Abdominal Aortic Aneurysms with an Unfavourable Proximal Neck

    Energy Technology Data Exchange (ETDEWEB)

    Saha, Prakash, E-mail: prakash.2.saha@kcl.ac.uk; Hughes, John, E-mail: johnhughes387@rocketmail.com; Patel, Ashish S., E-mail: ashish.s.patel@kcl.ac.uk; Donati, Tommaso, E-mail: tommaso.donati@gstt.nhs.uk; Sallam, Morad, E-mail: morad.sallam@gstt.nhs.uk; Patel, Sanjay D., E-mail: sanjay.patel@gstt.nhs.uk; Bell, Rachel E. [King’s Health Partners, Department of Vascular Surgery, Guy’s and St. Thomas’ Hospitals, NHS Foundation Trust (United Kingdom); Katsanos, Konstantinos, E-mail: katsanos@med.upatras.gr [King’s Health Partners, Department of Interventional Radiology, Guy’s and St. Thomas’ Hospitals, NHS Foundation Trust (United Kingdom); Modarai, Bijan, E-mail: bijan.modarai@kcl.ac.uk; Zayed, Hany A., E-mail: hany.zayed@gstt.nhs.uk [King’s Health Partners, Department of Vascular Surgery, Guy’s and St. Thomas’ Hospitals, NHS Foundation Trust (United Kingdom)

    2015-08-15

    PurposeThe purpose of this study was to evaluate medium-term outcomes following endovascular repair of abdominal aortic aneurysms (EVAR) with unfavourable neck anatomy using stent grafts with a 36 mm or larger proximal diameter.Materials and MethodsA retrospective review of 27 patients who underwent elective EVAR between 2006 and 2008 using a stent graft with a 36 mm or larger proximal diameter was carried out. All patients had computed tomography angiography (CTA) for procedure planning, and detailed assessment of the aneurysm neck was performed using a three-dimensional CTA workstation. Patients were followed up with CTA at 3 and 12 months and annual duplex thereafter.ResultsThe median aneurysm diameter was 7 cm, and the median aneurysm neck diameter was 31 mm. Cook Zenith stent grafts were used in all patients, with a proximal diameter of 36 mm (n = 25) and 40 mm (n = 2). Primary and assisted primary technical success rates were 74 and 93 %, respectively. The follow-up period ranged from 62 to 84 months, with a median of 72 months. 15 patients died during follow-up. Two patients died from aortic rupture, and the remaining patients died from cardiac disease (n = 4), chest sepsis (n = 6), cancer (n = 2) and renal failure (n = 1). Complications included type I endoleak (n = 5), limb occlusion (n = 2), limb stenosis (n = 2), limb kinking (n = 1), dissection of an artery (n = 1), occlusion of a femorofemoral cross-over graft (n = 1) and poor attachment of a distal limb (n = 1).ConclusionsEVAR using stent grafts in the presence of an unfavourable neck has a high risk of complications. Medium-term survival in this group is low but mainly due to patient co-morbidities.

  5. Aneurysm pulsatility after endovascular exclusion: an experimental study using human aortic aneurysms

    Directory of Open Access Journals (Sweden)

    Hussein Amin Orra

    2008-01-01

    Full Text Available OBJECTIVE: To measure the pulsatility of human aneurysms before and after complete exclusion with an endograft. METHOD: Five aortic aneurysms obtained during necropsy were submitted to pulsatile perfusion before and after implantation of a bifurcated endograft. The specimens were contained in a closed chamber filled with saline solution. A vertical tube attached to the chamber was used to measure volume dislocation in each systole. Mural thrombus was kept intact, and the space around the device was filled with human blood. After each experiment, the aneurysm was opened to check for the correct positioning and attachment of the device. RESULTS: The level of the saline column oscillated during pulsation in each case, with respective amplitudes of 17, 16, 13, 7, and 25 cm before the endograft insertion. After the insertion, the amplitudes dropped to 13, 12, 9, 3.5, and 23 cm, respectively. The differences were not significant. During the post-experimental examination, all devices were found to be in position and well attached to the neck and iliacs. No endoleak was detected during perfusion or by visual inspection. CONCLUSION: Pulsation of an endograft is transmitted to the aneurysm wall even in the absence of endoleak, and should not be interpreted as procedural failure.

  6. Glycated Hemoglobin Is Associated With the Growth Rate of Abdominal Aortic Aneurysms

    DEFF Research Database (Denmark)

    Kristensen, Katrine Lawaetz; Dahl, Marie; Rasmussen, Lars Melholt

    2017-01-01

    and HbA1c in the total study population (P=0.002). Both crude and adjusted analyses identified slower growth for the group with the highest HbA1c tertile compared with the lowest HbA1c tertile. After 3 years, the mean difference was 1.8 mm (confidence interval, 0.98–2.64). Similar significant differences......OBJECTIVE—: An inverse association between abdominal aortic aneurysms (AAAs) and diabetes mellitus exists; however, the cause remains unknown. This study aimed to evaluate whether the degree of glycemia is associated with aneurysm growth. APPROACH AND RESULTS—: The study was based on VIVA trial...... (Viborg Vascular), the randomized clinically controlled screening trial for abdominal aortic aneurysm in men aged 65 to 74 years in the Central Denmark Region. The screening included measurement of the abdominal aorta by ultrasound, analysis of glycated hemoglobin (HbA1c), and follow-up for ≤5 years...

  7. Low-dose aspirin and rupture of abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Wemmelund, Holger; Jørgensen, Trine M M; Høgh, Annette

    2016-01-01

    OBJECTIVE: The use of low-dose aspirin (acetylsalicylic acid [ASA]) has been suggested to attenuate growth of abdominal aortic aneurysms (AAAs), yet solid clinical evidence of this hypothesis is still missing. This study aimed to investigate whether preadmission ASA use influenced the risk...

  8. Antimicrobial treatment to impair expansion of abdominal aortic aneurysm (AAA)

    DEFF Research Database (Denmark)

    Bergqvist, David; Lindeman, Johannes H N; Lindholt, Jes S

    2013-01-01

    Antimicrobial treatment to attenuate expansion of abdominal aortic aneurysm has been suggested, especially with the focus on Chlamydophila. In this systematic literature review only four randomized trials were identified. In two small studies there is an indication of an effect of roxithromycin. ...

  9. A variant in LDLR is associated with abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Bradley, Declan T; Hughes, Anne E; Badger, Stephen A

    2013-01-01

    Abdominal aortic aneurysm (AAA) is a common cardiovascular disease among older people and demonstrates significant heritability. In contrast to similar complex diseases, relatively few genetic associations with AAA have been confirmed. We reanalyzed our genome-wide study and carried through to re...

  10. Association of ficolin-3 with abdominal aortic aneurysm presence and progression

    DEFF Research Database (Denmark)

    Fernandez-García, C-E; Burillo, E; Lindholt, J S

    2017-01-01

    Essentials Abdominal aortic aneurysm (AAA) is asymptomatic and its evolution unpredictable. To find novel potential biomarkers of AAA, microvesicles are an excellent source of biomarkers. Ficolin-3 is increased in microvesicles obtained from activated platelets and AAA tissue. Increased ficolin-3...... plasma levels are associated with AAA presence and progression. SUMMARY: Background Abdominal aortic aneurysm (AAA) patients are usually asymptomatic and AAA evolution is unpredictable. Ficolin-3, mainly synthesized by the liver, is a molecule of the lectin complement-activation pathway involved in AAA...... pathophysiology. Objectives To define extra-hepatic sources of ficolin-3 in AAA and investigate the role of ficolin-3 as a biomarker of the presence and progression of AAA. Methods Microvesicles (exosomes and microparticles) were isolated from culture-conditioned medium of ADP-activated platelets, as well as from...

  11. β-Carotene Attenuates Angiotensin II-Induced Aortic Aneurysm by Alleviating Macrophage Recruitment in Apoe(-/- Mice.

    Directory of Open Access Journals (Sweden)

    Kaliappan Gopal

    Full Text Available Abdominal aortic aneurysm (AAA is a common chronic degenerative disease characterized by progressive aortic dilation and rupture. The mechanisms underlying the role of α-tocopherol and β-carotene on AAA have not been comprehensively assessed. We investigated if α-tocopherol and β-carotene supplementation could attenuate AAA, and studied the underlying mechanisms utilized by the antioxidants to alleviate AAA. Four-months-old Apoe(-/- mice were used in the induction of aneurysm by infusion of angiotensin II (Ang II, and were orally administered with α-tocopherol and β-carotene enriched diet for 60 days. Significant increase of LDL, cholesterol, triglycerides and circulating inflammatory cells was observed in the Ang II-treated animals, and gene expression studies showed that ICAM-1, VCAM-1, MCP-1, M-CSF, MMP-2, MMP-9 and MMP-12 were upregulated in the aorta of aneurysm-induced mice. Extensive plaques, aneurysm and diffusion of inflammatory cells into the tunica intima were also noticed. The size of aorta was significantly (P = 0.0002 increased (2.24±0.20 mm in the aneurysm-induced animals as compared to control mice (1.17±0.06 mm. Interestingly, β-carotene dramatically controlled the diffusion of macrophages into the aortic tunica intima, and circulation. It also dissolved the formation of atheromatous plaque. Further, β-carotene significantly decreased the aortic diameter (1.33±0.12 mm in the aneurysm-induced mice (β-carotene, P = 0.0002. It also downregulated ICAM-1, VCAM-1, MCP-1, M-CSF, MMP-2, MMP-9, MMP-12, PPAR-α and PPAR-γ following treatment. Hence, dietary supplementation of β-carotene may have a protective function against Ang II-induced AAA by ameliorating macrophage recruitment in Apoe(-/- mice.

  12. Impact of Aneurysm Projection on Intraoperative Complications During Surgical Clipping of Ruptured Posterior Communicating Artery Aneurysms.

    Science.gov (United States)

    Fukuda, Hitoshi; Hayashi, Kosuke; Yoshino, Kumiko; Koyama, Takashi; Lo, Benjamin; Kurosaki, Yoshitaka; Yamagata, Sen

    2016-03-01

    Surgical clipping of ruptured posterior communicating artery (PCoA) aneurysms is a well-established procedure to date. However, preoperative factors associated with procedure-related risk require further elucidation. To investigate the impact of the direction of aneurysm projection on the incidence of procedure-related complications during surgical clipping of ruptured PCoA aneurysms. A total of 65 patients with ruptured PCoA aneurysms who underwent surgical clipping were retrospectively analyzed from a single-center, prospective, observational cohort database in this study. The aneurysms were categorized into lateral and posterior projection groups, depending on direction of the dome. Characteristics and operative findings of each projection group were identified. We also evaluated any correlation of aneurysm projection with the incidence of procedure-related complications. Patients with ruptured PCoA aneurysms with posterior projection more likely presented with good-admission-grade subarachnoid hemorrhage (P = .01, χ test) and were less to also have intracerebral hematoma (P = .01). These aneurysms were found to be associated with higher incidence of intraoperative rupture (P = .02), complex clipping with fenestrated clips (P = .02), and dense adherence to PCoA or its perforators (P = .04) by univariate analysis. Aneurysms with posterior projection were also correlated with procedure-related complications, including postoperative cerebral infarction or hematoma formation (odds ratio, 5.87; 95% confidence interval, 1.11-31.1; P = .04) by multivariable analysis. Ruptured PCoA aneurysms with posterior projection carried a higher risk of procedure-related complications of surgical clipping than those with lateral projection.

  13. Recognition and treatment of outflow tract stenosis during and after endovascular exclusion for abdominal aortic aneurysm

    International Nuclear Information System (INIS)

    Lu Qingsheng; Jing Zaiping; Zhao Zhiqing; Bao Junmin; Zhao Jun; Feng Xiang; Feng Rui; Huang Sheng

    2003-01-01

    Objective: To study the cognition and treatment of outflow tract stenosis in and after endovascular exclusion for abdominal aortic aneurysm. Methods: From Mar 1997 to Oct 2002, in 136 patients undergoing abdominal aortic aneurysm endovascular exclusion, 8 patients had outflow tract stenosis during the operation, and 3 patients had outflow tract stenosis after operation. The stenosis of 5 patients occurred at the crotch of the graft-stent. PTA was done in 7 patients and stents were placed in stenotic segment in 2 patients. 2 patients were treated with crossover operation. Results: Following up 1 month to 2 years, all patients have no lower limbs ischemia. Conclusions: The diagnosis of outflow tract stenosis during and after abdominal endovascular exclusion for aortic aneurysm must be in time. The treatment should be according to the different causes of stenosis

  14. Elastin-derived peptides promote abdominal aortic aneurysm formation by modulating M1/M2 macrophage polarization1

    Science.gov (United States)

    Dale, Matthew A; Xiong, Wanfen; Carson, Jeffrey S; Suh, Melissa K; Karpisek, Andrew D.; Meisinger, Trevor M.; Casale, George P.; Baxter, B. Timothy

    2016-01-01

    Abdominal aortic aneurysm (AAA) is a dynamic vascular disease characterized by inflammatory cell invasion and extracellular matrix (ECM) degradation. Damage to elastin in the ECM results in release of elastin-derived peptides (EDPs), which are chemotactic for inflammatory cells such as monocytes. Their effect on macrophage polarization is less well known. Pro-inflammatory M1 macrophages initially are recruited to sites of injury but, if their effects are prolonged, they can lead to chronic inflammation that prevents normal tissue repair. Conversely, anti-inflammatory M2 macrophages reduce inflammation and aid in wound healing. Thus, a proper M1/M2 ratio is vital for tissue homeostasis. AAA tissue reveals a high M1/M2 ratio where pro-inflammatory cells and their associated markers dominate. In the present study, in vitro treatment of bone marrow-derived macrophages with EDPs induced M1 macrophage polarization. By using C57Bl/6 mice, antibody-mediated neutralization of EDPs reduced aortic dilation, matrix metalloproteinase activity, and pro-inflammatory cytokine expression at early and late time points after aneurysm induction. Furthermore, direct manipulation of the M1/M2 balance altered aortic dilation. Injection of M2 polarized macrophages reduced aortic dilation after aneurysm induction. EDPs promoted a pro-inflammatory environment in aortic tissue by inducing M1 polarization and neutralization of EDPs attenuated aortic dilation. The M1/M2 imbalance is vital to aneurysm formation. PMID:27183603

  15. Comparison of the strain field of abdominal aortic aneurysm measured by magnetic resonance imaging and stereovision: a feasibility study for prediction of the risk of rupture of aortic abdominal aneurysm.

    Science.gov (United States)

    Wang, Yufei; Joannic, David; Delassus, Patrick; Lalande, Alain; Juillion, Patrick; Fontaine, Jean-François

    2015-04-13

    The prediction of the risk of rupture of abdominal aortic aneurysm (AAA) is a complex problem. Currently the criteria to predict rupture of abdominal aortic aneurysms are aneurysm diameter and growth rates. It is generally believed that study of the wall strain distribution could be helpful to find a better decision criterion for surgery of aortic aneurysms before their rupture. The wall strain distribution depends on many biological and biomechanical factors such as elastic properties of the aorta, turbulent blood flow, anatomy of the aorta, presence of thrombus or not and so on. Recently, numerical simulations to estimate rupture-potential have received many attentions. However, none of the medical imaging tools for screening and monitoring of AAAs were studied in terms of mechanical behavior and experimentally to demonstrate their capability to measure relevant variables. The aim of this study was to develop a metrological approach for deployment testing of the ability of techniques for measuring local in-vitro deformations based on comparison of stereovision and MRI. In this paper, we present the implementation approach and results of the study based on cylindrical phantoms with or without AAA representing, respectively, healthy and unhealthy artery. Through this study, an experimental device was developed for the behavior study of AAA during a cardiac cycle. The results show that the stereovision techniques used in laboratory is well suited and is qualitatively and quantitatively equivalent with MRI measurements. Copyright © 2015 Elsevier Ltd. All rights reserved.

  16. The pathogenesis shared between abdominal aortic aneurysms and intracranial aneurysms: a microarray analysis.

    Science.gov (United States)

    Wang, Wen; Li, Hao; Zhao, Zheng; Wang, Haoyuan; Zhang, Dong; Zhang, Yan; Lan, Qing; Wang, Jiangfei; Cao, Yong; Zhao, Jizong

    2018-04-01

    Abdominal aortic aneurysms (AAAs) and intracranial saccular aneurysms (IAs) are the most common types of aneurysms. This study was to investigate the common pathogenesis shared between these two kinds of aneurysms. We collected 12 IAs samples and 12 control arteries from the Beijing Tiantan Hospital and performed microarray analysis. In addition, we utilized the microarray datasets of IAs and AAAs from the Gene Expression Omnibus (GEO), in combination with our microarray results, to generate messenger RNA expression profiles for both AAAs and IAs in our study. Functional exploration and protein-protein interaction (PPI) analysis were performed. A total of 727 common genes were differentially expressed (404 was upregulated; 323 was downregulated) for both AAAs and IAs. The GO and pathway analyses showed that the common dysregulated genes were mainly enriched in vascular smooth muscle contraction, muscle contraction, immune response, defense response, cell activation, IL-6 signaling and chemokine signaling pathways, etc. The further protein-protein analysis identified 35 hub nodes, including TNF, IL6, MAPK13, and CCL5. These hub node genes were enriched in inflammatory response, positive regulation of IL-6 production, chemokine signaling pathway, and T/B cell receptor signaling pathway. Our study will gain new insight into the molecular mechanisms for the pathogenesis of both types of aneurysms and provide new therapeutic targets for the patients harboring AAAs and IAs.

  17. Role of F-18 FDG PET/CT in the management of infected abdominal aortic aneurysm due to salmonella

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Seung Jin; Lee, Jin Soo; Cheong, Moon Hyun; Byun, Sung Su; Hyun, In Young [Inha University College of Medicine, Incheon (Korea, Republic of)

    2007-12-15

    We present a case of infected abdominal aortic aneurysm due to salmonella enteritidis. F-18 FDG PET/CT was performed to diagnosis and during follow-up after antibiotic treatment. Computed tomography (CT) is considered to be the best diagnostic imaging modality in infected aortic lesions. In this case, a combination of CT and FDG PET/CT provided accurate information for the diagnosis of infected abdominal aortic aneurysm. Moreover, FDG PET/CT made an important contribution of monitoring disease activity during antibiotic treatment.

  18. Model-based segmentation of abdominal aortic aneurysms in CTA images

    Science.gov (United States)

    de Bruijne, Marleen; van Ginneken, Bram; Niessen, Wiro J.; Loog, Marco; Viergever, Max A.

    2003-05-01

    Segmentation of thrombus in abdominal aortic aneurysms is complicated by regions of low boundary contrast and by the presence of many neighboring structures in close proximity to the aneurysm wall. We present an automated method that is similar to the well known Active Shape Models (ASM), combining a three-dimensional shape model with a one-dimensional boundary appearance model. Our contribution is twofold: we developed a non-parametric appearance modeling scheme that effectively deals with a highly varying background, and we propose a way of generalizing models of curvilinear structures from small training sets. In contrast with the conventional ASM approach, the new appearance model trains on both true and false examples of boundary profiles. The probability that a given image profile belongs to the boundary is obtained using k nearest neighbor (kNN) probability density estimation. The performance of this scheme is compared to that of original ASMs, which minimize the Mahalanobis distance to the average true profile in the training set. The generalizability of the shape model is improved by modeling the objects axis deformation independent of its cross-sectional deformation. A leave-one-out experiment was performed on 23 datasets. Segmentation using the kNN appearance model significantly outperformed the original ASM scheme; average volume errors were 5.9% and 46% respectively.

  19. Three-dimensional Ultrasound in the Management of Abdominal Aortic Aneurysms

    DEFF Research Database (Denmark)

    Lowe, C B; Ghulam, Q; Bredahl, K

    2016-01-01

    Three-dimensional (3D) ultrasound is an evolving modality that may have numerous applications in the management of abdominal aortic aneurysms. Many vascular specialists will not be familiar with the different ways in which 3D vascular ultrasound data can be acquired nor how potential applications...

  20. Biomechanical Indices for Rupture Risk Estimation in Abdominal Aortic Aneurysms

    NARCIS (Netherlands)

    Leemans, Eva L.; Willems, Tineke P.; van der Laan, Maarten J.; Slump, Cornelis H.; Zeebregts, Clark J.

    2017-01-01

    Purpose: To review the use of biomechanical indices for the estimation of abdominal aortic aneurysm (AAA) rupture risk, emphasizing their potential use in a clinical setting. Methods: A search of the PubMed, Embase, Scopus, and Compendex databases was made up to June 2015 to identify articles

  1. Nursing cooperation in endovascular aneurysm repair treatment for aortic dissection

    International Nuclear Information System (INIS)

    Xing Li; Yuan Chanjuan; Chen Rumei; Xiao Zhanqiang; Qi Youfei

    2014-01-01

    Objective: To summarize the main points of nursing cooperation in endovascular aneurysm repair treatment for aortic dissection. Methods: Preoperative psychological care and the other preparations were carefully conducted. During the operation, the patient's body was correctly placed. Active cooperation with the performance of angiography and close observation during heparinization were carried out. The proper delivery of catheter and stent to the operator was carefully done. Close observation for the patient's vital signs, the renal function and the changes of limb blood supply were made. Results: Under close cooperation of' the operators, nurses, anesthesiologists and technicians, the surgery was successfully accomplished in 35 patients. The monitoring of vital signs during the entire performance of operation was well executed. No surgical instruments delivery error's or surgery failure due to unsuitable cooperation occurred. Conclusion: Perfect preoperative preparation, strict nursing cooperation and team cooperation are the key points to ensure a successful endovascular aneurysm repair for aortic dissection. (authors)

  2. Vascular Rupture Caused by a Molding Balloon during Endovascular Aneurysm Repair: Case Report

    International Nuclear Information System (INIS)

    Lee, Hee Young; Do, Young Soo; Park, Hong Suk; Park, Kwang Bo; Kim, Young Wook; Kim, Dong Ik

    2011-01-01

    Endovascular aneurysm repair (EVAR) has been accepted as an alternative to traditional open surgery in selected patients. Despite the minimally invasiveness of this treatment, several complications may occur during or after EVAR. Complications include endoleak, aortic dissection, distal embolism, or iatrogenic injury to the access artery. However, there are few reports on the vascular rupture caused by a molding balloon during EVAR. We report two cases of infrarenal abdominal aortic aneurysms complicated by procedure-related aortic or iliac artery rupture by the molding balloon during EVAR. In our cases, we observed suddenly abrupt increase of the diameter of the endograft during balloon inflation, because we inflated the balloon rapidly. In conclusion, careful attention must be paid during inflation of the molding balloon to prevent vascular rupture.

  3. "Elephant trunk" and endovascular stentgrafting : a hybrid approach to the treatment of extensive thoracic aortic aneurysm

    OpenAIRE

    Holubec, Tomás; Raupach, Jan; Dominik, Jan; Vojácek, Jan

    2013-01-01

    A hybrid approach to elephant trunk technique for treatment of thoracic aortic aneurysms combines a conventional surgical and endovascular therapy. Compared to surgery alone, there is a presumption that mortality and morbidity is reduced. We present a case report of a 42-year-old man with a giant aneurysm of the entire thoracic aorta, significant aortic and tricuspid regurgitation and ventricular septum defect. The patient underwent multiple consecutive operations and interventions having, am...

  4. Dutch experience with the fenestrated Anaconda endograft for short-neck infrarenal and juxtarenal abdominal aortic aneurysm repair.

    Science.gov (United States)

    Dijkstra, Martijn L; Tielliu, Ignace F J; Meerwaldt, Robbert; Pierie, Maurice; van Brussel, Jerome; Schurink, Geert Willem H; Lardenoye, Jan-Willem; Zeebregts, Clark J

    2014-08-01

    In the past decennium, the management of short-neck infrarenal and juxtarenal aortic aneurysms with fenestrated endovascular aneurysm repair (FEVAR) has been shown to be successful, with good early and midterm results. Recently, a new fenestrated device, the fenestrated Anaconda (Vascutek, Renfrewshire, Scotland), was introduced. The aim of this study was to present the current Dutch experience with this device. A prospectively held database of patients treated with the fenestrated Anaconda endograft was analyzed. Decision to treat was based on current international guidelines. Indications for FEVAR included an abdominal aortic aneurysm (AAA) with unsuitable neck anatomy for EVAR. Planning was performed on computed tomography angiography images using a three-dimensional workstation. Between May 2011 and September 2013, 25 patients were treated in eight institutions for juxtarenal (n = 23) and short-neck AAA (n = 2). Median AAA size was 61 mm (59-68.5 mm). All procedures except one were performed with bifurcated devices. A total of 56 fenestrations were incorporated, and 53 (94.6%) were successfully cannulated and stented. One patient died of bowel ischemia caused by occlusion of the superior mesenteric artery. On completion angiography, three type I endoleaks and seven type II endoleaks were observed. At 1 month of follow-up, all endoleaks had spontaneously resolved. Median follow-up was 11 months (range, 1-29 months). There were no aneurysm ruptures or aneurysm-related deaths and no reinterventions to date. Primary patency at 1 month of cannulated and stented target vessels was 96%. Initial and short-term results of FEVAR using the fenestrated Anaconda endograft are promising, with acceptable technical success and short-term complication rates. Growing experience and long-term results are needed to support these findings. Copyright © 2014 Society for Vascular Surgery. Published by Mosby, Inc. All rights reserved.

  5. Allometric considerations when assessing aortic aneurysms in Turner syndrome: Implications for activity recommendations and medical decision-making.

    Science.gov (United States)

    Corbitt, Holly; Maslen, Cheryl; Prakash, Siddharth; Morris, Shaine A; Silberbach, Michael

    2018-02-01

    In Turner syndrome, the potential to form thoracic aortic aneurysms requires routine patient monitoring. However, the short stature that typically occurs complicates the assessment of severity and risk because the relationship of body size to aortic dimensions is different in Turner syndrome compared to the general population. Three allometric formula have been proposed to adjust aortic dimensions, all employing body surface area: aortic size index, Turner syndrome-specific Z-scores, and Z-scores based on a general pediatric and young adult population. In order to understand the differences between these formula we evaluated the relationship between age and aortic size index and compared Turner syndrome-specific Z-scores and pediatric/young adult based Z-scores in a group of girls and women with Turner syndrome. Our results suggest that the aortic size index is highly age-dependent for those under 15 years; and that Turner-specific Z-scores are significantly lower than Z-scores referenced to the general population. Higher Z-scores derived from the general reference population could result in stigmatization, inappropriate restriction from sports, and increasing the risk of unneeded medical or operative treatments. We propose that when estimating aortic dissection risk clinicians use Turner syndrome-specific Z-score for those under fifteen years of age. © 2017 Wiley Periodicals, Inc.

  6. Expanding arch aneurysm causing a "kink" in a Bentall graft and heart failure.

    Science.gov (United States)

    Al-Mohaissen, Maha A; Skarsgard, Peter; Khoo, Clarence; Virani, Sean A; Munt, Brad; Leipsic, Jonathon; Ignaszewski, Andrew

    2012-07-01

    Marfan syndrome is associated with a high incidence of aortic root aneurysm and life-threatening aortic dissection. With the successful use of surgical aortic root replacement, dissection-related mortality has been significantly reduced. We present the case of a patient with Marfan syndrome who presented with heart failure secondary to an unusual graft-related complication 14 years after a Bentall procedure. Investigations revealed a supra-aortic stenosis resulting from a kink in the Bentall graft caused by pressure from an expanding aortic arch aneurysm. The patient underwent surgery with improvement in his ejection fraction and heart failure symptoms.

  7. Screening for abdominal aortic aneurysm reduces overall mortality in men. A meta-analysis of the mid- and long-term effects of screening for abdominal aortic aneurysms

    DEFF Research Database (Denmark)

    Lindholt, Jes Sanddal; Norman, P

    2008-01-01

    Four randomised controlled trials of screening older men for abdominal aortic aneurysms (AAA) have been completed. A meta-analysis was performed to examine the pooled effects of screening on both mid- and long-term AAA-related and total mortality, and operations for AAA....

  8. Personal resources and satisfaction with life in Marfan syndrome patients with aortic pathology and in abdominal aortic aneurysm patients.

    Science.gov (United States)

    Stanišić, Michał-Goran; Rzepa, Teresa; Gawrońska, Alicja; Kubaszewski, Przemysław; Putowski, Maciej; Stefaniak, Sebastian; Perek, Bartłomiej

    2018-03-01

    Whether or not the source of aortic pathology is Marfan syndrome (MFS) or other processes leading to development of abdominal aorta aneurysms (AAA), the awareness of pathology may lead to an emotional upset and low assessment of satisfaction with life. To assess, in regard to MFS patients with aortic pathology and to abdominal aortic aneurysm patients: 1) whether or not self-efficacy (SE) and health locus of control (HLoC) affect the patients' satisfaction with life; 2) whether the two groups of patients differ in terms of mental dispositions. The study population consisted of 16 MFS patients with aortic pathology and 16 AAA patients, 9 men and 7 women in each group. The mean age of the MFS patients was 28.5 ±8.214, and of the AAA patients 64.25 ±7.019. The following scales were applied: Generalized Self-Efficacy Scale, Satisfaction With Life Scale, Multidimensional Health Locus of Control Scale. Abdominal aorta aneurysms patients compared to MFS patients gave a higher rating for SE ( MD = 33.94 and MD = 29.56), internal health locus of control ( MD = 25.00 and MD = 21.13), external personal HL o C ( MD = 24.50 and MD = 19.25), external impersonal HLoC ( MD = 23.06 and MD = 18.25), and satisfaction with life ( M = 22.06 and M = 20.13). Internal and external HL o C were significantly lower in MFS patients compared to AAA patients. In patients with aortic diseases, special attention must be paid to the state of personal resources (PR). Interactions made by medical professionals should focus on enhancing PR supporting the patients' self-knowledge on their SE. This will help to improve their satisfaction with life and form a positive attitude to the illness.

  9. [Marfan syndrome: clinical and pathomorphological restructurings after surgical treatment of aortic aneurysm].

    Science.gov (United States)

    Zhuraev, R K; Zerbino, D D

    2014-01-01

    The authors examined the state of patients suffering from Marfan syndrome (MS) who endured operation for ascending aorta aneurysm with replacement of the ascending aorta and aortic valve (Bentall operation), studying alterations of the skeleton, face, heart and eyes, as well as pathomorphological restructurings in the aortic wall. The study was carried out 7.0 ± 4.2 years after the operation. We examined a total of 39 patients with MS - 27 (69.2%) men and 12 (30.8%) women aged from 22 to 70 years old (average age - 42.1 ± 13.4 years). All patients were operated on for dissecting aneurysm of the ascending aorta accompanied by a considerable degree of aortic valve insufficiency or aortic ostium stenosis. The mean diameter of the aorta at the level of the sinuses of Valsalva amounted to 7.0 ± 1.3 cm (minimal - 5.0 cm, maximal - 12.0 cm), the Z-score prior to operation was 12.7 ± 6.5. The time form making the diagnosis of MS to surgical intervention for aortic aneurysm amounted to 9.6 ± 5.9 years. The condition after operative treatment in all patients was satisfactory, with the haemodynamic indices stable: systolic AP - 133.5 ± 19.1 mm Hg, diastolic AP 85.1 ± 12.9 mm Hg, heart rate 74.8 ± 7.2 bpm. The average systemic score for the symptoms and tests of MS patients amounted to 8.2 ± 3.3 points. Pathohistological alterations of the aorta in patients with Marfan syndrome consisted in pronounced restructuring of the wall with deep irreversible alternative changes. The pathological process extended in the middle aortic layer all alone the length, but not only in the portions of rupture and dissection. The main pathomorphological signs in MS were as follows: focal accumulations of mucoid substances, dystrophic alterations of smooth-muscle cells, ribbon-like anuclear zones, formation of cystlike cavities, alterations of elastic fibres - fragmentation, hyperelastosis, multiplication, thinning and straightening, zones of elastolysis.

  10. Effectiveness of treatment for octogenarians with acute abdominal aortic aneurysm

    NARCIS (Netherlands)

    Scheer, Margot L. J.; Pol, Robert A.; Haveman, Jan Willem; Tielliu, Ignace F. J.; Verhoeven, Eric L. G.; Van den Dungen, Jan J. A. M.; Nijsten, Maarten W.; Zeebregts, Clark J.

    Objective: To investigate whether advanced age may be a reason to refrain from treatment in patients with an acute abdominal aortic aneurysm (AAAA). Methods: This was a retrospective cohort study that took place in a tertiary care university hospital with a 45-bed intensive care unit. Two hundred

  11. Emergency abdominal aortic aneurysm repair with a preferential endovascular strategy : Mortality and cost-effectiveness analysis

    NARCIS (Netherlands)

    Kapma, Marten R.; Groen, Henk; Oranen, Bjorn I.; van der Hilst, Christian S.; Tielliu, Ignace F.; Zeebregts, Clark J.; Prins, Ted R.; van den Dungen, Jan J.; Verhoeven, Eric L.

    2007-01-01

    Purpose: To assess mortality and treatment costs of a new management protocol with preferential use of emergency endovascular aneurysm repair (eEVAR) for acute abdominal aortic aneurysm (AAA). Methods: From September 2003 until February 2005, 49 consecutive patients (45 men; mean age 71 years) with

  12. Aortic root surgery in Marfan syndrome: Comparison of aortic valve-sparing reimplantation versus composite grafting.

    Science.gov (United States)

    Karck, Matthias; Kallenbach, Klaus; Hagl, Christian; Rhein, Christine; Leyh, Rainer; Haverich, Axel

    2004-02-01

    The objective of this study was to compare the results of aortic valve-sparing reimplantation and aortic root replacement with mechanical valve conduits in patients with Marfan syndrome undergoing operation for aortic root aneurysms. Patients and methods Between March 1979 and April 2002, 119 patients with clinical evidence of Marfan syndrome underwent composite graft replacement with mechanical valve conduits (n = 74) or aortic valve-sparing reimplantation according to David (n = 45). The underlying causes were aortic dissection type A (43 patients) and aneurysms (76 patients). Patients undergoing aortic valve reimplantation were younger compared with patients undergoing composite grafting (28 vs 35 years, P =.002) and had longer intraoperative aortic crossclamp times (125 vs 78 minutes, P valve reimplantation (P =.15). Mean follow-up was 30 months for patients undergoing aortic valve reimplantation and 114 months for patients undergoing composite grafting. Freedom from reoperation and death after 5 years postoperatively was 92% and 89% in patients undergoing composite grafting and 84% and 96% in patients undergoing aortic valve reimplantation (P =.31; P =.54), respectively. Thromboembolic complications or late postoperative bleeding occurred in 17 patients undergoing composite grafting, and an early postoperative event occurred in 1 patient undergoing aortic valve reimplantation. The results of aortic valve reimplantation and composite grafting of the aortic valve and ascending aorta with mechanical valve conduits are similar with regard to early and mid-term postoperative mortality and to the incidence of late reoperations in patients with Marfan syndrome. The low risk of thromboembolic or bleeding complications favors aortic valve reimplantation in these patients.

  13. Evaluation of the levels of metalloproteinsase-2 in patients with abdominal aneurysm and abdominal hernias.

    Science.gov (United States)

    Antoszewska, Magdalena

    2013-05-01

    Abdominal aortic aneurysms and abdominal hernias become an important health problems of our times. Abdominal aortic aneurysm and its rupture is one of the most dangerous fact in vascular surgery. There are some theories pointing to a multifactoral genesis of these kinds of diseases, all of them assume the attenuation of abdominal fascia and abdominal aortic wall. The density and continuity of these structures depend on collagen and elastic fibers structure. Reducing the strength of the fibers may be due to changes in the extracellular matrix (ECM) by the proteolytic enzymes-matrix metalloproteinases (MMPs) that degrade extracellular matrix proteins. These enzymes play an important role in the development of many disease: malignant tumors (colon, breast, lung, pancreas), cardiovascular disease (myocardial infarction, ischemia-reperfusion injury), connective tissue diseases (Ehler-Danlos Syndrome, Marfan's Syndrome), complications of diabetes (retinopathy, nephropathy). One of the most important is matrix metalloproteinase-2 (MMP-2). The aim of the study was an estimation of the MMP-2 blood levels in patients with abdominal aortic aneurysm and primary abdominal hernia, and in patients with only abdominal aortic aneurysm. The study involved 88 patients aged 42 to 89 years, including 75 men and 13 women. Patients were divided into two groups: patients with abdominal aortic aneurysm and primary abdominal hernia (45 persons, representing 51.1% of all group) and patients with only abdominal aortic aneurysm (43 persons, representing 48,9% of all group). It was a statistically significant increase in MMP-2 blood levels in patients with abdominal aortic aneurysm and primary abdominal hernia compared to patients with only abdominal aortic aneurysm. It was a statistically significant increase in the prevalence of POCHP in patients with only abdominal aortic aneurysm compared to patients with abdominal aortic aneurysm and primary abdominal hernia. Statistically significant

  14. Participation of Arachidonic Acid Metabolism in the Aortic Aneurysm Formation in Patients with Marfan Syndrome

    Directory of Open Access Journals (Sweden)

    María E. Soto

    2018-02-01

    Full Text Available Marfan syndrome (MFS is a pleiotropic genetic disease involving the cardiovascular system where a fibrillin-1 mutation is present. This mutation is associated with accelerated activation of transforming growth factor β (TGFβ1 which contributes to the formation of aneurysms in the root of the aorta. There is an imbalance in the synthesis of thromboxane A2 (TXA2 and prostacyclin, that is a consequence of a differential protein expression of the isoforms of cyclooxygenases (COXs, suggesting an alteration of arachidonic acid (AA metabolism. The aim of this study was to analyze the participation of AA metabolism associated with inflammatory factors in the dilation and dissection of the aortic aneurysm in patients with MFS. A decrease in AA (p = 0.02, an increase in oleic acid (OA, TGFβ1, tumor necrosis factor alpha (TNFα, prostaglandin E2 (PGE2 (p < 0.05, and COXs activity (p = 0.002 was found. The expressions of phospholipase A2 (PLA2, cytochrome P450 (CYP450 4A, 5-lipoxygenase (5-LOX, COX2 and TXA2R (p < 0.05 showed a significant increase in the aortic aneurysm of patients with MFS compared to control subjects. COX1, 6-keto-prostaglandin 1 alpha (6-keto-PG1α and 8-isoprostane did not show significant changes. Histological examination of the aortas showed an increase of cystic necrosis, elastic fibers and collagen in MFS. The results suggest that there are inflammatory factors coupled to genetic factors that predispose to aortic endothelial dysfunction in the aortic tissue of patients with MFS. There is a decrease in the percentage of AA, associated with an increase of PLA2, COX2/TXA2R, CYP450 4A, and 5-LOX which leads to a greater synthesis of PGE2 than of 6-keto-PGF1α, thus contributing to the formation of the aortic aneurysm. The evident loss of the homeostasis in these mechanisms confirms that there is a participation of the AA pathway in the aneurysm progression in MFS.

  15. Vascular complications associated with transcatheter aortic valve replacement.

    Science.gov (United States)

    Sardar, M Rizwan; Goldsweig, Andrew M; Abbott, J Dawn; Sharaf, Barry L; Gordon, Paul C; Ehsan, Afshin; Aronow, Herbert D

    2017-06-01

    Transcatheter aortic valve replacement (TAVR) is now an accepted pathway for aortic valve replacement for patients who are at prohibitive, severe and intermediate risk for traditional aortic valve surgery. However, with this rising uptrend and adaptation of this new technology, vascular complications and their management remain an Achilles heel for percutaneous aortic valve replacement. The vascular complications are an independent predictor of mortality for patients undergoing TAVR. Early recognition of these complications and appropriate management is paramount. In this article, we review the most commonly encountered vascular complications associated with currently approved TAVR devices and their optimal percutaneous management techniques.

  16. Relationships between activators and inhibitors of plasminogen, and the progression of small abdominal aortic aneurysms

    DEFF Research Database (Denmark)

    Lindholt, Jes Sanddal; Jørgensen, B; Shi, G-P

    2003-01-01

    plasmin is a common activator of the known proteolytic systems involved in the aneurysmal degradation, and is reported to be associated with the expansion of abdominal aortic aneurysms (AAA). The aim of this study was to study the activating pathways of plasminogen as predictors of the progression...

  17. Cost-effectiveness analysis of screening for abdominal aortic aneurysms based on five year results from a randomised hospital based mass screening trial

    DEFF Research Database (Denmark)

    Lindholt, Jes Sanddal; Juul, Søren; Fasting, H

    2006-01-01

    The aim of this study was to estimate the cost effectiveness of screening for abdominal aortic aneurysm (AAA).......The aim of this study was to estimate the cost effectiveness of screening for abdominal aortic aneurysm (AAA)....

  18. Jaundice as a Rare Indication for Aortic Aneurysm Repair.

    Science.gov (United States)

    Rieß, Henrik C; Tsilimparis, Nikolaos; Behrendt, Christian A; Wipper, Sabine; Debus, Eike S; Larena-Avellaneda, Axel

    2015-10-01

    Compression of adjacent anatomic structures by an abdominal aortic aneurysm (AAA) can result in a variety of symptoms. We describe the case of an 88-year-old Caucasian woman with jaundice, elevated laboratory parameters for extrahepatic and intrahepatic cholestasis, and concomitant juxtarenal AAA compressing the liver hilum. Following exclusion of other common causes for cholestasis, the patient was considered to have a symptomatic AAA. Open abdominal aortic surgery revealed a contained rupture and was repaired. Obstructive jaundice secondary to a compromising AAA is a rare condition and to the best of our knowledge has not been reported to date. Copyright © 2015 Elsevier Inc. All rights reserved.

  19. Monozygotic twins with Marfan's syndrome and ascending aortic aneurysm.

    Science.gov (United States)

    Redruello, Héctor Jorge; Cianciulli, Tomas Francisco; Rostello, Eduardo Fernandez; Recalde, Barbara; Lax, Jorge Alberto; Picone, Victorio Próspero; Belforte, Sandro Mario; Prezioso, Horacio Alberto

    2007-08-01

    Marfan's syndrome is a hereditary connective tissue disease, in which cardiovascular abnormalities (especially aortic root dilatation) are the most important cause of morbidity and mortality. In this report, we describe two 24-year-old twins, with a history of surgery for lens subluxation and severe cardiovascular manifestations secondary to Marfan's syndrome. One of the twins suffered a type A aortic dissection, which required replacement of the ascending aorta, and the other twin had an aneurysmal dilatation of the ascending aorta (46mm) and was prescribed medical treatment with atenolol and periodic controls to detect the presence of a critical diameter (50mm) that would indicate the need for prophylactic surgery.

  20. Endovascular Treatment of a Symptomatic Thoracoabdominal Aortic Aneurysm by Chimney and Periscope Techniques for Total Visceral and Renal Artery Revascularization

    Energy Technology Data Exchange (ETDEWEB)

    Cariati, Maurizio, E-mail: cariati.maurizio@sancarlo.mi.it [San Carlo Borromeo Hospital, Department of Diagnostic Sciences (Italy); Mingazzini, Pietro; Dallatana, Raffaello [San Carlo Borromeo Hospital, Department of Vascular Surgery (Italy); Rossi, Umberto G. [San Carlo Borromeo Hospital, Department of Diagnostic Sciences (Italy); Settembrini, Alberto [San Carlo Borromeo Hospital, Università degli Studi di Milano (Italy); Santuari, Davide [San Carlo Borromeo Hospital, Department of Vascular Surgery (Italy)

    2013-05-02

    Conventional endovascular therapy of thoracoabdominal aortic aneurysm with involving visceral and renal arteries is limited by the absence of a landing zone for the aortic endograft. Solutions have been proposed to overcome the problem of no landing zone; however, most of them are not feasible in urgent and high-risk patients. We describe a case that was successfully treated by total endovascular technique with a two-by-two chimney-and-periscope approach in a patient with acute symptomatic type IV thoracoabdominal aortic aneurysm with supra-anastomotic aneurysm formation involving the renal and visceral arteries and a pseduaneurismatic sac localized in the left ileopsoas muscle.

  1. An Animal Model of Abdominal Aortic Aneurysm Created with Peritoneal Patch: Technique and Initial Results

    International Nuclear Information System (INIS)

    Maynar, Manuel; Qian Zhong; Hernandez, Javier; Sun Fei; Miguel, Carmen de; Crisostomo, Veronica; Uson, Jesus; Pineda, Luis-Fernando; Espinoza, Carmen G.; Castaneda, Wilfrido R.

    2003-01-01

    The purpose of this study was to develop an abdominal aortic aneurysm model that more closely resembles themorphology of human aneurysms with potential for further growth of the sac. An infrarenal abdominal aortic aneurysm (AAA) model was created with a double-layered peritoneal patch in 27 domestic swine. The patch,measuring in average from 6 to 12 cm in length and from 2 to 3 cm in width, was sutured to the edge of an aortotomy. Pre- and postsurgical digital subtraction aortograms (DSA) were obtained to document the appearance and dimensions of the aneurysm. All animals were followed with DSA for up to 5 months. Laparoscopic examination enhanced by the use of laparoscopic ultrasound was also carried out in 2 animals to assess the aneurysm at 30 and 60 days following surgery. Histological examination was performed on 4 animals. All the animals that underwent the surgical creation of the AAA survived the surgical procedure.Postsurgical DSA demonstrated the presence of the AAA in all animals,defined as more than 50% increase in diameter. The aneurysmal mean diameter increased from the baseline of 10.27 ± 1.24 to 16.69± 2.29 mm immediately after surgery, to 27.6 ± 6.59 mm at 14 days, 32.45 ± 8.76 mm at 30 days (p <0.01), and subsequently decreased to 25.98 ± 3.75 mm at 60 days. A total of 15 animals died of aneurysmal rupture that occurred more frequently in the long aneurysms (≥6 cm in length) than the short aneurysms (<6 cm in length) during the first 2 weeks after surgery(p < 0.05). No rupture occurred beyond 16 days after surgery. Four animals survived and underwent 60-day angiographic follow-up. Laparoscopic follow-up showed strong pulses, a reddish external appearance and undetectable suture lines on the aneurysmal wall. On pathology, the patches were well incorporated into the aortic wall, the luminal wall appeared almost completely endothelialized, and cellular and matrix proliferation were noted in the aneurysmal wall. A reproducible technique for the

  2. Preliminary ten year results from a randomised single centre mass screening trial for abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Lindholt, Jes Sanddal; Juul, Søren; Fasting, H

    2006-01-01

    At present, several regions and countries are considering screening for abdominal aortic aneurysm (AAA). However, The Chichester Aneurysms Screening Trial has reported poor long term benefit of screening for AAA. We therefore supplement previously published data with a preliminary analysis...

  3. Real chimney technique for total debranching of supra-aortic trunks.

    Science.gov (United States)

    Kato, Masaaki; Kagaya, Hideo; Kubo, Yoji; Banno, Hiroshi; Ohkubo, Nobukazu

    2015-02-01

    Side-clamping of the ascending aorta is an indispensable technique for proximal anastomosis in total debranching of supra-aortic trunks and in endovascular aneurysm repair for arch aneurysm. However, this procedure may lead to the dislodging of multiple plaques and to clamp injury of the ascending aorta. We developed a clampless technique to achieve proximal anastomosis between the ascending aorta and an artificial graft used for total debranching of supra-aortic trunks. We applied this method in six patients with arch aneurysm and a plaque-rich ascending aorta and were able to achieve total debranching of the supra-aortic trunks in all of the patients without side-clamping the ascending aorta and no procedurally related complications. This clampless anastomosis technique ("real chimney technique") in the ascending aorta is a valuable option for total debranching of supra-aortic trunks in the hybrid repair of arch aneurysms. Copyright © 2015 The Authors. Published by Elsevier Inc. All rights reserved.

  4. Endovascular Aortic Aneurysm Repair with Chimney and Snorkel Grafts: Indications, Techniques and Results

    Energy Technology Data Exchange (ETDEWEB)

    Patel, Rakesh P., E-mail: rpatel9@nhs.net [Northwick Park Hospital, Department of Vascular Radiology (United Kingdom); Katsargyris, Athanasios, E-mail: kthanassos@yahoo.com; Verhoeven, Eric L. G., E-mail: Eric.Verhoeven@klinikum-nuernberg.de [Klinikum Nuernberg, Department of Vascular and Endovascular Surgery (Germany); Adam, Donald J., E-mail: donald.adam@tiscali.co.uk [Heartlands Hospital, Department of Vascular Surgery (United Kingdom); Hardman, John A., E-mail: johnhardman@doctors.org.uk [Royal United Hospital Bath, Department of Vascular Radiology (United Kingdom)

    2013-12-15

    The chimney technique in endovascular aortic aneurysm repair (Ch-EVAR) involves placement of a stent or stent-graft parallel to the main aortic stent-graft to extend the proximal or distal sealing zone while maintaining side branch patency. Ch-EVAR can facilitate endovascular repair of juxtarenal and aortic arch pathology using available standard aortic stent-grafts, therefore, eliminating the manufacturing delays required for customised fenestrated and branched stent-grafts. Several case series have demonstrated the feasibility of Ch-EVAR both in acute and elective cases with good early results. This review discusses indications, technique, and the current available clinical data on Ch-EVAR.

  5. Aortic valve-sparing operations in aortic root aneurysms: remodeling or reimplantation?

    Science.gov (United States)

    Rahnavardi, Mohammad; Yan, Tristan D; Bannon, Paul G; Wilson, Michael K

    2011-08-01

    A best evidence topic was written according to a structured protocol. The question addressed was whether the reimplantation (David) technique or the remodeling (Yacoub) technique provides the optimum event free survival in patients with an aortic root aneurysm suitable for an aortic valve-sparing operation. In total, 392 papers were found using the reported search criteria, of which 14 papers provided the best evidence to answer the clinical question. A total of 1338 patients (Yacoub technique in 606 and David technique in 732) from 13 centres were included. In most series, cardiopulmonary bypass time and aortic cross-clamp time were longer for the David technique compared to the Yacoub technique. Early mortality was comparable between the two techniques (0-6.9% for the Yacoub technique and 0-6% for the David technique). There is a tendency for a higher freedom from significant long-term aortic insufficiency in the David group than the Yacoub group, which does not necessarily result in a higher reoperation rate in the Yacoub group. In the largest series reported, freedom from a moderate-to-severe aortic insufficiency at 12 years was 82.6 ± 6.2% in the Yacoub and 91.0 ± 3.8% in the David group (P=0.035). Freedom from reoperation at the same time point was 90.4 ± 4.7% in the Yacoub group and 97.4 ± 2.2% in the David group (P=0.09). In another series, freedom from reoperation at a follow-up time of about four years was 89 ± 4% in the Yacoub group and 98 ± 2% in the David group. Although some authors merely preferred the Yacoub technique for a bicuspid aortic valve, the accumulated evidence in the current review indicates comparable results for both techniques in a bicuspid aortic valve. Current evidence is in favour of the David rather than the Yacoub technique in pathologies such as Marfan syndrome, acute type A aortic dissection, and excessive annular dilatation that may impair aortic root integrity. Careful selection of patients for each technique and

  6. Tube Stent-Grafts for Infrarenal Aortic Aneurysm: A Matched-Paired Analysis Based on EUROSTAR Data

    International Nuclear Information System (INIS)

    Ruppert, Volker; Leurs, Lina J.; Hobo, Roel; Buth, Jacob; Rieger, Johannes; Umscheid, Thomas

    2007-01-01

    Objective. Tube stent-grafts for treatment of infrarenal aortic aneurysms (AAAs) are a nearly forgotten concept. For focal aortic pathologies tube stent-grafts may be a treatment option. We have performed a retrospective matched-paired analysis of the EUROSTAR registry regarding the outcome of tube vs. bifurcated stent-grafts for AAA. Tapered aortomonoiliac stent-grafts were not the objective of this study. Materials and methods. From July 1997 to June 2006, 7581 patients who underwent an endovascular AAA repair were entered in the EUROSTAR registry by 164 centers. One hundred fifty-three patients were treated with tube stent-grafts. For each of these 153 patients we selected one patient from a bifurcated stent-graft group (BGG-original, 7428 patients) matched according to gender, ASA, age, AAA diameter, and type of anesthesia. Differences in preoperative details between the two study groups were analyzed using chi-square test for discrete variables and Wilcoxon rank-sum test for continuous variables. Multivariate logistic regression analysis was performed on early complications. Midterm outcomes (>30 days) were analyzed by Kaplan-Meier and multivariate Cox proportional hazard model. Results. The duration of the procedure was shorter in the tube stent-graft group (TGG; 102.3 ± 52.2) than in BGG (128.3 ± 55.0; p 0.0002). Type II endoleak was less frequent in TGG (4.0%; mean follow-up, 23.12 ± 23.9 months) than in BGG (14.3%; mean follow-up, 20.77 ± 20.0 months; p = 0.0394). Type I endoleaks and migration were distributed equally, without significant differences between the groups. Combined 30-day and late mortality was higher for TGG (p = 0.0346) and was obviously not aneurysm related. Conclusions. We conclude that after selection of patients, tube stent-grafts for infrarenal aortic repair can be performed with great safety regarding endoleaks and migration. The combined higher 30-day mortality and non-aneurysm-related mortality during follow-up were mainly

  7. Endovascular Aneurysm Repair of Acute Occlusion of Abdominal Aortic Aneurysm with Intra-Aneurysmal Dissection.

    Science.gov (United States)

    Terai, Yasuhiko; Mitsuoka, Hiroshi; Nakai, Masanao; Goto, Shinnosuke; Miyano, Yuta; Tsuchiya, Hirokazu; Yamazaki, Fumio

    2015-11-01

    To report a rare case of acute abdominal aortic aneurysm (AAA) occlusion successfully treated by endovascular aneurysm repair (EVAR). An 89-year-old man complained of severe back pain and weakness in the bilateral lower extremities. Although there were neither acute ischemic signs on the brain computed tomography (CT) nor critical leg ischemia, the patient presented progressing weakness in the bilateral lower extremities and decreased sensation in the perianal and saddle area. Contrast-enhanced CT demonstrated an infrarenal AAA, the formation of an ulcer-like lesion in the aneurysmal wall, and the complete occlusion of distal AAA because of the caudal extension of intramural hematoma. Both common iliac arteries were patent because of the development of collateral vessels. The neurologic symptoms were considered to be caused by the occlusion of lumbar radicular arteries. EVAR seemed anatomically feasible, if the occlusion could be crossed by guidewires from both side of the common femoral artery. Wires easily traversed the occlusion, and the stent graft could be smoothly unwrapped and opened. The patient could recover decent iliac arterial flow. The neurovascular deficits recovered within 4 days after the procedure. Although our experience may not be reproduced in all case of AAA occlusion, EVAR warrants consideration to reduce the high mortality rate associated with the classical treatments. Copyright © 2015 Elsevier Inc. All rights reserved.

  8. 3D printing of an aortic aneurysm to facilitate decision making and device selection for endovascular aneurysm repair in complex neck anatomy.

    Science.gov (United States)

    Tam, Matthew D B S; Laycock, Stephen D; Brown, James R I; Jakeways, Matthew

    2013-12-01

    To describe rapid prototyping or 3-dimensional (3D) printing of aneurysms with complex neck anatomy to facilitate endovascular aneurysm repair (EVAR). A 75-year-old man had a 6.6-cm infrarenal aortic aneurysm that appeared on computed tomographic angiography to have a sharp neck angulation of ~90°. However, although the computed tomography (CT) data were analyzed using centerline of flow, the true neck length and relations of the ostial origins were difficult to determine. No multidisciplinary consensus could be reached as to which stent-graft to use owing to these borderline features of the neck anatomy. Based on past experience with rapid prototyping technology, a decision was taken to print a model of the aneurysm to aid in visualization of the neck anatomy. The CT data were segmented, processed, and converted into a stereolithographic format representing the lumen as a 3D volume, from which a full-sized replica was printed within 24 hours. The model demonstrated that the neck was adequate for stent-graft repair using the Aorfix device. Rapid prototyping of aortic aneurysms is feasible and can aid decision making and device delivery. Further work is required to test the value of 3D replicas in planning procedures and their impact on procedure time, radiation dose, and procedure cost.

  9. Value of computed tomography for the diagnosis and pre and post-treatment workup of aortic aneurysms. Comparison with angiographic findings. A report of data in 112 cases

    International Nuclear Information System (INIS)

    Senac, J.P.; Giron, J.; Ovchinnikoff, S.; Mourre, P.; Joffre, P.; Mary, H.; Novati, J.P.

    1987-01-01

    The authors report that CT scan provided decisive or complementary data, as compared to angiography, in 112 cases of aortic aneurysm. CT scan thus emerges as a useful tool. The inadequate angiographies were either nearly normal, or showed evidence that pointed to total arterial occlusion whose thrombotic and aneurysmal nature was demonstrated only upon computed tomography; CT scan proved irreplaceable for evaluating prostheses and postoperative complications. The axial transverse plane of CT sections explains why computed tomography is so informative: the channel, thrombosis, wall and peri-adventicia (fibrosis, fissuration) are visible successively from the center to the periphery. In the authors' opinion, the pretreatment evaluation of an aortic aneurysm should include a CT angioscan in addition to an angiography as the two procedures complement one another. After surgery, CT scan is even more widely indicated. CT scan is the primary procedure for controlling a prosthesis and often makes other investigations unnecessary [fr

  10. Problems and prospects of managing thoracic aortic aneurysm at the Nnamdi Azikiwe University Teaching Hospital, Nnewi, Nigeria.

    Science.gov (United States)

    Chianakwana, Gabriel U; Odike, Maxy A C; Nwofor, Alexander M E

    2004-03-01

    The objective of this report is to highlight the problems encountered in managing thoracic aortic aneurysm in a third-generation teaching hospital serving a purely rural community in the heartland of Anambra State, in the southeastern part of Nigeria. This report also proffers solutions aimed at assisting in providing better care for patients afflicted with this condition. From time to time, patients present with vascular diseases, including aneurysm, but the condition is only occasionally suspected and sparingly investigated. This is a report of two cases within the setting of the Nnamdi Azikiwe University Teaching Hospital (NAUTH), Nnewi Nigeria. After the death of these two patients, one of whom was a member of the staff of the hospital, post mortem examinations revealed that they had died of ruptured thoracic aortic aneurysm. Their medical records were retrieved from the Medical Records Department and reviewed with the aim of analyzing their clinical features and management in the light of the unexpected post-mortem examination results. The survey of the patient records revealed that the diagnosis of thoracic aortic aneurysm was not suspected in either patient even though both had symptoms pointing to this condition. The staff member was a 55-year old man and the other patient was a 31-year old woman in her 30th week of pregnancy. We conclude by drawing the attention of medical practitioners in our community to the fact that thoracic aortic aneurysms are probably more common than we thought. Only a high index of suspicion will lead to clinical diagnosis and treatment.

  11. Dynamic CT in dissecting aortic aneurysm

    International Nuclear Information System (INIS)

    Fujita, Nobuyuki; Matsuoka, Yosuke; Mizuo, Hideyo; Shirato, Hiroki; Irie, Goro

    1985-01-01

    especially about the branching of major vessels Eight cases of aortic dissection were analysed to evaluate detectability of the branching of major vessels from a ture or false lumen, by dynamic CT. Although recognition of the branching is easy when the direct continuity to a dissected lumen is demonstrated, but without visualization of direct continuity or with no information about dissected lumens, it is sometimes difficult or leads us to misdiagnosis. The diagnostic accuracy is 100% when direct continuity to a dissected lumen is demonstrated, or dynamic CT revealed branching pattern distinctly. Dynamic CT is useful for a diagnosis of dissecting aneurysm and branching pattern of major vessels. (author)

  12. Screening for abdominal aortic aneurysms Rastreamento de aneurismas da aorta abdominal

    Directory of Open Access Journals (Sweden)

    Telmo Pedro Bonamigo

    2003-01-01

    Full Text Available OBJECTIVE AND METHODS: Screening for abdominal aortic aneurysms may be useful to decrease mortality related to rupture. We conducted a study to assess the prevalence of abdominal aortic aneurysms in southern Brazil and to define risk factors associated with high prevalence of this disorder. The screening was conducted using abdominal ultrasound. Three groups were studied: Group 1 - cardiology clinic patients; Group 2 - individuals with severe ischemic disease and previous coronary surgery, or important lesions on cardiac catheterism; Group 3 - individuals without cardiac disease selected from the general population. All individuals were male and older than 54 years of age. The ultrasonographic diagnosis of aneurysm was based on an anteroposterior abdominal aorta diameter of 3 cm, or on an abdominal aorta diameter 0.5 cm greater than that of the supra-renal aorta. RESULTS: A total of 2.281 people were screened for abdominal aortic aneurysms in all groups: Group 1 - 768 individuals, Group 2 - 501 individuals, and Group 3 - 1012 individuals. The prevalence of aneurysms was 4.3%, 6.8% and 1.7%, respectively. Age and cigarette smoking were significantly associated with increased prevalence of aneurysms, as was the diagnosis of peripheral artery disease. DISCUSSION: We concluded that screening may be an important tool to prevent the mortality associated with abdominal aortic aneurysms surgery. Additionally, the cost of screening can be decreased if only individuals presenting significant risk factors, such as coronary and peripheral artery disease, smokers and relatives of aneurysm patients, are examined.OBJETIVO E MÉTODOS: O rastreamento de aneurisma da aorta abdominal infra-renal é importante pois pode diminuir a mortalidade relacionada à ruptura. Realizamos um estudo para definir a prevalência desses aneurismas em diversos segmentos da população em nossa região do Brasil. O rastreamento foi realizado utilizando-se a ecografia de abdômen. Tr

  13. Importance of initial stress for abdominal aortic aneurysm wall motion: Dynamic MRI validated finite element analysis

    NARCIS (Netherlands)

    Merkx, M.A.G.; Veer, van 't M.; Speelman, L.; Breeuwer, M.; Buth, J.; Vosse, van de F.N.

    2009-01-01

    Currently the transverse diameter is the primary decision criterion to assess rupture risk in patients with an abdominal aortic aneurysm (AAA). To obtain a measure for more patient-specific risk assessment, aneurysm wall stress, calculated using finite element analysis (FEA), has been evaluated in

  14. Role of myeloperoxidase in abdominal aortic aneurysm formation: mitigation by taurine.

    Science.gov (United States)

    Kim, Ha Won; Blomkalns, Andra L; Ogbi, Mourad; Thomas, Manesh; Gavrila, Daniel; Neltner, Bonnie S; Cassis, Lisa A; Thompson, Robert W; Weiss, Robert M; Lindower, Paul D; Blanco, Victor M; McCormick, Michael L; Daugherty, Alan; Fu, Xiaoming; Hazen, Stanley L; Stansfield, Brian K; Huo, Yuqing; Fulton, David J; Chatterjee, Tapan; Weintraub, Neal L

    2017-12-01

    Oxidative stress plays a fundamental role in abdominal aortic aneurysm (AAA) formation. Activated polymorphonuclear leukocytes (or neutrophils) are associated with AAA and express myeloperoxidase (MPO), which promotes inflammation, matrix degradation, and other pathological features of AAA, including enhanced oxidative stress through generation of reactive oxygen species. Both plasma and aortic MPO levels are elevated in patients with AAA, but the role of MPO in AAA pathogenesis has, heretofore, never been investigated. Here, we show that MPO gene deletion attenuates AAA formation in two animal models: ANG II infusion in apolipoprotein E-deficient mice and elastase perfusion in C57BL/6 mice. Oral administration of taurine [1% or 4% (wt/vol) in drinking water], an amino acid known to react rapidly with MPO-generated oxidants like hypochlorous acid, also prevented AAA formation in the ANG II and elastase models as well as the CaCl 2 application model of AAA formation while reducing aortic peroxidase activity and aortic protein-bound dityrosine levels, an oxidative cross link formed by MPO. Both MPO gene deletion and taurine supplementation blunted aortic macrophage accumulation, elastin fragmentation, and matrix metalloproteinase activation, key features of AAA pathogenesis. Moreover, MPO gene deletion and taurine administration significantly attenuated the induction of serum amyloid A, which promotes ANG II-induced AAAs. These data implicate MPO in AAA pathogenesis and suggest that studies exploring whether taurine can serve as a potential therapeutic for the prevention or treatment of AAA in patients merit consideration. NEW & NOTEWORTHY Neutrophils are abundant in abdominal aortic aneurysm (AAA), and myeloperoxidase (MPO), prominently expressed in neutrophils, is associated with AAA in humans. This study demonstrates that MPO gene deletion or supplementation with the natural product taurine, which can scavenge MPO-generated oxidants, can prevent AAA formation

  15. Reproducibility of ECG-gated Ultrasound Diameter Assessment of Small Abdominal Aortic Aneurysms

    DEFF Research Database (Denmark)

    Bredahl, K; Eldrup, N; Meyer, C

    2013-01-01

    No standardised ultrasound procedure to obtain reliable growth estimates for abdominal aortic aneurysms (AAA) is currently available. We investigated the feasibility and reproducibility of a novel approach controlling for a combination of vessel wall delineation and cardiac cycle variation....

  16. Redox stress in Marfan syndrome: Dissecting the role of the NADPH oxidase NOX4 in aortic aneurysm.

    Science.gov (United States)

    Jiménez-Altayó, Francesc; Meirelles, Thayna; Crosas-Molist, Eva; Sorolla, M Alba; Del Blanco, Darya Gorbenko; López-Luque, Judit; Mas-Stachurska, Aleksandra; Siegert, Ana-Maria; Bonorino, Fabio; Barberà, Laura; García, Carolina; Condom, Enric; Sitges, Marta; Rodríguez-Pascual, Fernando; Laurindo, Francisco; Schröder, Katrin; Ros, Joaquim; Fabregat, Isabel; Egea, Gustavo

    2018-04-01

    Marfan syndrome (MFS) is characterized by the formation of ascending aortic aneurysms resulting from altered assembly of extracellular matrix fibrillin-containing microfibrils and dysfunction of TGF-β signaling. Here we identify the molecular targets of redox stress in aortic aneurysms from MFS patients, and investigate the role of NOX4, whose expression is strongly induced by TGF-β, in aneurysm formation and progression in a murine model of MFS. Working models included aortae and cultured vascular smooth muscle cells (VSMC) from MFS patients, and a NOX4-deficient Marfan mouse model (Fbn1 C1039G/+ -Nox4 -/- ). Increased tyrosine nitration and reactive oxygen species levels were found in the tunica media of human aortic aneurysms and in cultured VSMC. Proteomic analysis identified nitrated and carbonylated proteins, which included smooth muscle α-actin (αSMA) and annexin A2. NOX4 immunostaining increased in the tunica media of human Marfan aorta and was transcriptionally overexpressed in VSMC. Fbn1 C1039G/+ -Nox4 -/- mice aortas showed a reduction of fragmented elastic fibers, which was accompanied by an amelioration in the Marfan-associated enlargement of the aortic root. Increase in the contractile phenotype marker calponin in the tunica media of MFS mice aortas was abrogated in Fbn1 C1039G/+ -Nox4 -/- mice. Endothelial dysfunction evaluated by myography in the Marfan ascending aorta was prevented by the absence of Nox4 or catalase-induced H 2 O 2 decomposition. We conclude that redox stress occurs in MFS, whose targets are actin-based cytoskeleton members and regulators of extracellular matrix homeostasis. Likewise, NOX4 have an impact in the progression of the aortic dilation in MFS and in the structural organization of the aortic tunica media, the VSMC phenotypic modulation, and endothelial function. Copyright © 2018 Elsevier Inc. All rights reserved.

  17. Value of computed tomography for the diagnosis and pre and post-treatment work-up of aortic aneurysms. Comparison with angiographic findings. A report of data in 112 cases

    International Nuclear Information System (INIS)

    Senac, J.P.; Giron, J.; Ovchinnickoff, S.; Mourre, P.; Joffre, P.; Mary, H.; Novati, J.P.

    1986-01-01

    The authors report that CT scan provided decisive or complementary data, as compared to angiography, in 112 cases of aortic aneurysm. CT scan thus emerges as an useful tool. The inadequate angiographies were either nearly normal, or showed evidence that pointed to total arterial occlusion whose thrombotic and aneurysmal nature was demonstrated only upon computed tomography; CT scan proved irreplaceable for evaluating prostheses and postoperative complications. The axial transverse plane of CT sections explains why computed tomography is so informative: the channel, thrombosis, wall and peri-adventicia (fibrosis, fissuration) are visible successively from the center to the periphery. In the authors' opinion, the pretreatment evaluation of an aortic aneurysm should include a CT angioscan in addition to an angiography as the two procedures complement one another. After surgery, CT scan is even more widely indicated. CT scan is the primary procedure for controlling a prosthesis and often makes other investigations unnecessary [fr

  18. Endovascular Exclusion of an Abdominal Aortic Aneurysm in Patients with Concomitant Abdominal Malignancy: Early Experience

    Energy Technology Data Exchange (ETDEWEB)

    Choi, You Ri; Chang, Nam Kyu [Chonnam National University Hwasun Hospital, Hwasun (Korea, Republic of); Shin, Hyo Hyun; Oh, Hyun Jun; Kim, Jae Kyu; Choi, Soo Jin Na; Chung, Sang Young [Chonnam National University Hospital, Gwangju (Korea, Republic of); Yim, Nam Yeol [Armed Forces Yangju Hospital, Yangju (Korea, Republic of)

    2010-08-15

    To assess the outcomes of endovascular aortic aneurysm repair (EVAR) for the treatment of an abdominal aortic aneurysm in patients undergoing curative surgical treatment for concomitant abdominal malignancy. The study included 12 patients with abdominal neoplasia and an abdominal aortic aneurysm (AAA), which was treated by surgery and stent EVAR. The neoplasm consisted of the gastric, colorectal, pancreas, prostate, and gall bladder. The follow up period was 3-21 months (mean 11.8 months). All medical records and imaging analyses were reviewed by CTA and/or color Doppler US, retrospectively. Successful endoluminal repair was accomplished in all twelve patients. The mean interval time between EVAR and surgery was 58.6 days. Small amounts of type 2 endoleaks were detected in two patients (17%). One patient developed adult respiratory distress syndrome after Whipple's operation 20 days after surgery, which led to hopeless discharge. No procedure-related mortality, morbidity, or graft-related infection was noted. Exclusion of AAA in patients with accompanying malignancy show with a relatively low procedure morbidity and mortality. Hence, endoluminal AAA repair in patients with synchronous neoplasia may allow greater flexibility in the management of an offending malignancy

  19. Endovascular Exclusion of an Abdominal Aortic Aneurysm in Patients with Concomitant Abdominal Malignancy: Early Experience

    International Nuclear Information System (INIS)

    Choi, You Ri; Chang, Nam Kyu; Shin, Hyo Hyun; Oh, Hyun Jun; Kim, Jae Kyu; Choi, Soo Jin Na; Chung, Sang Young; Yim, Nam Yeol

    2010-01-01

    To assess the outcomes of endovascular aortic aneurysm repair (EVAR) for the treatment of an abdominal aortic aneurysm in patients undergoing curative surgical treatment for concomitant abdominal malignancy. The study included 12 patients with abdominal neoplasia and an abdominal aortic aneurysm (AAA), which was treated by surgery and stent EVAR. The neoplasm consisted of the gastric, colorectal, pancreas, prostate, and gall bladder. The follow up period was 3-21 months (mean 11.8 months). All medical records and imaging analyses were reviewed by CTA and/or color Doppler US, retrospectively. Successful endoluminal repair was accomplished in all twelve patients. The mean interval time between EVAR and surgery was 58.6 days. Small amounts of type 2 endoleaks were detected in two patients (17%). One patient developed adult respiratory distress syndrome after Whipple's operation 20 days after surgery, which led to hopeless discharge. No procedure-related mortality, morbidity, or graft-related infection was noted. Exclusion of AAA in patients with accompanying malignancy show with a relatively low procedure morbidity and mortality. Hence, endoluminal AAA repair in patients with synchronous neoplasia may allow greater flexibility in the management of an offending malignancy

  20. Acute Symptomatic Abdominal Aortic Aneurysm Secondary to Endovascular Stent Graft Associated Type II Endoleak

    Directory of Open Access Journals (Sweden)

    Karen Ka Leung Chan

    2006-07-01

    Full Text Available Endovascular abdominal aneurysm repair (EVAR is popular because of its low invasiveness and feasibility for high-risk patients. Endoleak is common after EVAR and is characterized by blood flow within the aneurysm sac but outside the stent graft. Type II or collateral endoleak commonly results from retrograde filling of the aneurysm from collateral visceral vessels, lumbar, inferior mesenteric, accessory renal or sacral arteries. Collateral leaks are generally thought to be benign and over half of the early leaks will seal spontaneously. Sporadically, collateral endoleak could lead to aneurysm sac pressurization and place the patient at ongoing risk of rupture. Herein, we report an uncommon case of early post-stent graft placement symptomatic abdominal aortic aneurysm associated with type II endoleak.

  1. Suspected leaking abdominal aortic aneurysm: use of sonography in the emergency room.

    Science.gov (United States)

    Shuman, W P; Hastrup, W; Kohler, T R; Nyberg, D A; Wang, K Y; Vincent, L M; Mack, L A

    1988-07-01

    To determine the value of sonography in the emergent evaluation of suspected leaking abdominal aortic aneurysms, the authors examined 60 patients in the emergency department using sonography and a protocol involving advance radio notification from the ambulance; arrival of sonographic personnel and equipment in the triage room before patient arrival; and, during other triage activities, rapid sonographic evaluation of the aorta for aneurysm and of the paraaortic region for extraluminal blood. Sonographic findings were correlated with surgical results and clinical outcome. When performed under these circumstances, sonography was accurate in demonstrating presence or absence of aneurysm (98%), but its sensitivity for extraluminal blood was poor (4%). A combination of sonographic confirmation of aneurysm, abdominal pain, and unstable hemodynamic condition resulted in the correct decision to perform emergent surgery in 21 of 22 patients (95%). An abbreviated sonographic examination done in the emergency room can provide accurate, useful information about the presence of aneurysm; this procedure does not significantly delay triage of these patients.

  2. Repair of left coronary artery aneurysm, recurrent ascending aortic aneurysm, and mitral valve prolapse 19 years after Bentall's procedure in a patient with Marfan syndrome.

    Science.gov (United States)

    Badmanaban, Balaji; Mallon, Peter; Campbell, Norman; Sarsam, Mazin A I

    2004-01-01

    A 45-year-old female with Marfan syndrome had a Bentall's procedure performed 19 years ago. She presented with a 4-year history of gradually worsening dyspnea and decreasing exercise tolerance. Investigations revealed severe mitral valve prolapse, a left main stem coronary artery (LMSCA) aneurysm, and a recurrent aneurysm of the ascending aorta. The mitral valve was replaced and the aortic aneurysmal sac and the LMSCA aneurysm were then repaired by a modified Bentall procedure. The patient made an uneventful recovery and was discharged home.

  3. Fluid, solid and fluid-structure interaction simulations on patient-based abdominal aortic aneurysm models.

    Science.gov (United States)

    Kelly, Sinead; O'Rourke, Malachy

    2012-04-01

    This article describes the use of fluid, solid and fluid-structure interaction simulations on three patient-based abdominal aortic aneurysm geometries. All simulations were carried out using OpenFOAM, which uses the finite volume method to solve both fluid and solid equations. Initially a fluid-only simulation was carried out on a single patient-based geometry and results from this simulation were compared with experimental results. There was good qualitative and quantitative agreement between the experimental and numerical results, suggesting that OpenFOAM is capable of predicting the main features of unsteady flow through a complex patient-based abdominal aortic aneurysm geometry. The intraluminal thrombus and arterial wall were then included, and solid stress and fluid-structure interaction simulations were performed on this, and two other patient-based abdominal aortic aneurysm geometries. It was found that the solid stress simulations resulted in an under-estimation of the maximum stress by up to 5.9% when compared with the fluid-structure interaction simulations. In the fluid-structure interaction simulations, flow induced pressure within the aneurysm was found to be up to 4.8% higher than the value of peak systolic pressure imposed in the solid stress simulations, which is likely to be the cause of the variation in the stress results. In comparing the results from the initial fluid-only simulation with results from the fluid-structure interaction simulation on the same patient, it was found that wall shear stress values varied by up to 35% between the two simulation methods. It was concluded that solid stress simulations are adequate to predict the maximum stress in an aneurysm wall, while fluid-structure interaction simulations should be performed if accurate prediction of the fluid wall shear stress is necessary. Therefore, the decision to perform fluid-structure interaction simulations should be based on the particular variables of interest in a given

  4. Influence of diabetes mellitus on the endovascular treatment of abdominal aortic aneurysms.

    NARCIS (Netherlands)

    Leurs, L.J.; Laheij, R.J.F.; Buth, J.

    2005-01-01

    PURPOSE: To investigate the influence of diabetes mellitus on outcome after endovascular abdominal aortic aneurysm (AAA) repair. METHODS: Of 6017 patients enrolled in the EUROSTAR registry after undergoing endovascular AAA repair between May 1994 and December 2003, 731 (12%) had diabetes mellitus

  5. Sac Angiography and Glue Embolization in Emergency Endovascular Aneurysm Repair for Ruptured Abdominal Aortic Aneurysm

    Energy Technology Data Exchange (ETDEWEB)

    Koike, Yuya, E-mail: r06118@hotmail.co.jp; Nishimura, Jun-ichi, E-mail: jun-ichi-n@nifty.com; Hase, Soichiro, E-mail: haseman@hotmail.co.jp; Yamasaki, Motoshige, E-mail: genyamasaki@gmail.com [Kawasaki Saiwai Hospital, Department of Interventional Radiology (Japan)

    2015-04-15

    PurposeThe purpose of this study was to demonstrate a sac angiography technique and evaluate the feasibility of N-butyl cyanoacrylate (NBCA) embolization of the ruptured abdominal aortic aneurysm (AAA) sac in emergency endovascular aneurysm repair (EVAR) in hemodynamically unstable patients.MethodsA retrospective case series of three patients in whom sac angiography was performed during emergency EVAR for ruptured AAA was reviewed. After stent graft deployment, angiography within the sac of aneurysm (sac angiography) was performed by manually injecting 10 ml of contrast material through a catheter to identify the presence and site of active bleeding. In two patients, sac angiography revealed active extravasation of the contrast material, and NBCA embolization with a coaxial catheter system was performed to achieve prompt sealing.ResultsSac angiography was successful in all three patients. In the two patients who underwent NBCA embolization for aneurysm sac bleeding, follow-up computed tomography (CT) images demonstrated the accumulation of NBCA consistent with the bleeding site in preprocedural CT images.ConclusionsEVAR is associated with a potential risk of ongoing bleeding from type II or IV endoleaks into the disrupted aneurysm sac in patients with severe coagulopathy. Therefore, sac angiography and NBCA embolization during emergency EVAR may represent a possible technical improvement in the treatment of ruptured AAA in hemodynamically unstable patients.

  6. [Congenital anomalies of cerebral artery and intracranial aneurysm].

    Science.gov (United States)

    Nakajima, K; Ito, Z; Hen, R; Uemura, K; Matsuoka, S

    1976-02-01

    It is well known that congenital anomalies such as polycystic kidney, aortic coarctation, Marfan syndrome, Ehler-Danlos syndrome are apt to be complicated by intracranial aneurysms. In this report we attempt to reveal the relation and incidence between cerebrovascular anomalies and intracranial aneurysms. The etiology of aneurysms has been discussed, too. 12 cases of persistent trigeminl artery, 2 cases of persistent hypoglossal artery and 11 cases of fenestration were obtained from 3841 patients who were angiographically examined in our clinic for 5 years. The incidence is 0.31%, 0.05% and 0.29%, respectively. Persistent trigeminal arteries were complicated by 2 cases of intracranial aneurysms and one case of arterivenous malformations (AVM), persistent hypoglossal arteries were complicated by one case of aneurysm, and fenestrations were complicated by 2 cases of aneurysms and one case of AVM. One case of congenital agenesis of right internal carotid artery was obtained which was complicated by aneurysm of anterior communicating artery. Totally, 8 cases of aneurysms and AVM were obtained from 26 cases of cerebrovascular anomalies (incidence 30.8%). On the other hand, thalamic or caudate hemorrhage revealed the highest incidence of complication of intracranial aneurysms among intracerebral hematomas (10.7%). Compared with the incidence of aneurysms between cerebro vascular anomalies (30.8%) and thalamic or caudate hemorrhage (10.7%), the difference is statistically signigicant (P less than 0.05). The cause of intracranial aneurysm has not yet been clarified. But it is well accepted that the defect of tunica media vasorum is most responsible factor as to the occurrence of intracranial aneurysms. We concluded that the genetic error of cerebral vessels including defect of media caused intracranial aneurysms, and this result was supported from the evidence that cerebrovascular anomalies showed statistically high incidence of complication of intracranial aneurysms.

  7. Elective visceral hybrid repair of type III thoracoabdominal aortic aneurysm

    Directory of Open Access Journals (Sweden)

    Marjanović Ivan

    2012-01-01

    Full Text Available Introduction. According to the classification given by Crawford et al. type III thoracoabdominal aortic aneurysm (TAAA is dilatation of the aorta from the level of the rib 6 to the separation of the aorta below the renal arteries, capturing all the visceral branch of aorta. Visceral hybrid reconstruction of TAAA is a procedure developed in recent years in the world, which involves a combination of conventional, open and endovascular aortic reconstruction surgery at the level of separation of the left subclavian artery to the level of visceral branches of aorta. Case report. We presented a 75-years-old man, with elective visceral hybrid reconstruction of type III TAAA. Computerized scanning (CT angiography of the patient showed type III TAAA with the maximum transverse diameter of aneurysm of 92 mm. Aneurysm started at the level of the sixth rib, and the end of the aneurysm was 1 cm distal to the level of renal arteries. Aneurysm compressed the esophagus, causing the patient difficulty in swallowing act, especially solid food, and frequent back pain. From the other comorbidity, the patient had been treated for a long time, due to chronic obstructive pulmonary disease and hypertension. In general endotracheal anesthesia with epidural analgesia, the patient underwent visceral hybrid reconstruction of TAAA, which combines classic, open vascular surgery and endovascular procedures. Classic vascular surgery is visceral reconstruction using by-pass procedure from the distal, normal aorta to all visceral branches: celiac trunk, superior mesenteric artery and both renal arteries, with ligature of all arteries very close to the aorta. After that, by synchronous endovascular technique a complete aneurysmal exclusion of thoracoabdominal aneurysm with thoracic stent-graft was performed. The postoperative course was conducted properly and the patient left the Clinic for Vascular Surgery on postoperative day 21. Control CT, performed 3 months after the surgery

  8. Causes and Implications of Readmission after Abdominal Aortic Aneurysm Repair

    Science.gov (United States)

    Greenblatt, David Yu; Greenberg, Caprice C.; Kind, Amy J.H.; Havlena, Jeffrey A.; Mell, Matthew W.; Nelson, Matthew T.; Smith, Maureen A.; Kent, K. Craig

    2012-01-01

    Objective To determine the frequency, causes, predictors, and consequences of 30-day readmission after abdominal aortic aneurysm (AAA) repair. Summary Background Data CMS will soon reduce total Medicare reimbursements for hospitals with higher-than-predicted 30-day readmission rates after vascular surgical procedures including AAA repair. However, causes and factors leading to readmission in this population have never before been systematically analyzed. Methods We analyzed elective AAA repairs over a two-year period from the CMS Chronic Conditions Warehouse, a 5% national sample of Medicare beneficiaries. Results 2481 patients underwent AAA repair – 1502 endovascular (EVAR) and 979 open. 30-day readmission rates were equivalent for EVAR (13.3%) and open repair (12.8%). While wound complication was the most common reason for readmission after both procedures, the relative frequency of other causes differed – e.g., bowel obstruction was common following open repair and graft complication after EVAR. In multivariate analyses, preoperative comorbidities had a modest effect on readmission; however, postoperative factors including serious complications leading to prolonged length of stay and discharge destination other than home had a profound influence on the probability of readmission. The one-year mortality in readmitted patients was 23.4% versus 4.5% in those not readmitted (preadmission is common after AAA repair. Adjusting for comorbidities, postoperative events predict readmission, suggesting that proactively preventing, detecting, and managing postoperative complications may provide an approach to decreasing readmissions, with the potential to reduce cost and possibly enhance long-term survival. PMID:22964736

  9. Trends in aortic aneurysm- and dissection-related mortality in the state of São Paulo, Brazil, 1985–2009: multiple-cause-of-death analysis

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    Santo Augusto

    2012-10-01

    Full Text Available Abstract Background Aortic aneurysm and dissection are important causes of death in older people. Ruptured aneurysms show catastrophic fatality rates reaching near 80%. Few population-based mortality studies have been published in the world and none in Brazil. The objective of the present study was to use multiple-cause-of-death methodology in the analysis of mortality trends related to aortic aneurysm and dissection in the state of Sao Paulo, between 1985 and 2009. Methods We analyzed mortality data from the Sao Paulo State Data Analysis System, selecting all death certificates on which aortic aneurysm and dissection were listed as a cause-of-death. The variables sex, age, season of the year, and underlying, associated or total mentions of causes of death were studied using standardized mortality rates, proportions and historical trends. Statistical analyses were performed by chi-square goodness-of-fit and H Kruskal-Wallis tests, and variance analysis. The joinpoint regression model was used to evaluate changes in age-standardized rates trends. A p value less than 0.05 was regarded as significant. Results Over a 25-year period, there were 42,615 deaths related to aortic aneurysm and dissection, of which 36,088 (84.7% were identified as underlying cause and 6,527 (15.3% as an associated cause-of-death. Dissection and ruptured aneurysms were considered as an underlying cause of death in 93% of the deaths. For the entire period, a significant increased trend of age-standardized death rates was observed in men and women, while certain non-significant decreases occurred from 1996/2004 until 2009. Abdominal aortic aneurysms and aortic dissections prevailed among men and aortic dissections and aortic aneurysms of unspecified site among women. In 1985 and 2009 death rates ratios of men to women were respectively 2.86 and 2.19, corresponding to a difference decrease between rates of 23.4%. For aortic dissection, ruptured and non-ruptured aneurysms, the

  10. CT diagnosis of ruptured abdominal aortic aneurysm

    International Nuclear Information System (INIS)

    Sacknoff, R.; Novelline, R.A.; Wittenberg, J.; Waltman, A.C.; De Luca, S.A.; Rhea, J.T.; Lawrason, J.N.

    1986-01-01

    Ruptured abdominal aortic aneurysm (AAA) is a life-threatening condition requiring immediate diagnosis and surgery. In a series of 23 consecutive patients scanned by CT for suspected ruptured AAA, CT proved 100% accurate. In seven patients with surgically or pathologically proved ruptured AAA, CT demonstrated a similar distribution of hemorrhage into the perirenal space and to a lesser degree into the anterior and posterior pararenal spaces. The 16 true-negative examinations included ten in patients with unruptured AAA and six in patients with other diseases. The authors conclude that patients in stable condition with suspected ruptured AAA should be examined by CT

  11. Mast Cells in Abdominal Aortic Aneurysms

    DEFF Research Database (Denmark)

    Shi, Guo-Ping; Lindholt, Jes Sanddal

    2013-01-01

    Mast cells (MCs) are proinflammatory cells that play important roles in allergic responses, tumor growth, obesity, diabetes, atherosclerosis, and abdominal aortic aneurysm (AAA). Although the presence and function of MCs in atherosclerotic lesions have been thoroughly studied in human specimens......, in primary cultured vascular cells, and in atherosclerosis in animals, their role in AAA was recognized only recently. Via multiple activation pathways, MCs release a spectrum of mediators � including histamine, inflammatory cytokines, chemokines, growth factors, proteoglycans, and proteases � to activate...... neighboring cells, degrade extracellular matrix proteins, process latent bioactive molecules, promote angiogenesis, recruit additional inflammatory cells, and stimulate vascular cell apoptosis. These activities associate closely with medial elastica breakdown, medial smooth-muscle cell loss and thinning...

  12. Infective endarteritis and false mycotic aneurysm complicating aortic coarctation

    Directory of Open Access Journals (Sweden)

    Ziadi Jaleleddine

    2012-01-01

    Full Text Available A 12-year-old boy with coarctation of aorta developed infective endarteritis and mycotic aneurysm at the site distal to coarctation. The computed tomography angiogram was very helpful in the diagnosis. Medical management and early surgical intervention was curative. Infective endarteritis in coarctation may be underdiagnosed.

  13. Preadmission use of renin-angiotensin blockers and rupture of abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Wemmelund, Holger; Høgh, Annette; Hundborg, Heidi H.

    2016-01-01

    PURPOSE: Rupture of abdominal aortic aneurysms (rAAA) is associated with high mortality. Use of angiotensin converting enzyme inhibitors (ACE-inhibitors) and angiotensin receptor blockers (ARBs) has been suggested to reduce the risk of rAAA. This nationwide, combined case-control and follow-up st...

  14. Fatal late multiple emboli after endovascular treatment of abdominal aortic aneurysm. Case report

    DEFF Research Database (Denmark)

    Lindholt, Jes Sanddal; Sandermann, Jes; Bruun-Petersen, J

    1998-01-01

    The short term experience of endovascular treatment of abdominal aortic aneurysms (AAA) seems promising but long term randomised data are lacking. Consequently, cases treated by endovascular procedures need to be closely followed for potential risks and benefits....

  15. Characterizing saccular aortic arch aneurysms from the geometry-flow dynamics relationship.

    Science.gov (United States)

    Natsume, Kayoko; Shiiya, Norihiko; Takehara, Yasuo; Sugiyama, Masataka; Satoh, Hiroshi; Yamashita, Katsushi; Washiyama, Naoki

    2017-06-01

    Low wall shear stress (WSS) has been reported to be associated with accelerated atherosclerosis, aneurysm growth, or rupture. We evaluated the geometry of aortic arch aneurysms and their relationship with WSS by using the 4-dimensional flow magnetic resonance imaging to better characterize the saccular aneurysms. We analyzed the geometry in 100 patients using multiplanar reconstruction of computed tomography. We evaluated WSS and vortex flow using 4-dimensional flow magnetic resonance imaging in 16 of them, which were compared with 8 age-matched control subjects and eight healthy young volunteers. Eighty-two patients had a saccular aneurysm, and 18 had a fusiform aneurysm. External diameter/aneurysm length ratio and sac depth/neck width ratio of the fusiform aneurysms were constant at 0.76 ± 0.18 and 0.23 ± 0.09, whereas those of saccular aneurysms, especially those involving the outer curvature, were higher and more variable. Vortex flow was always present in the aneurysms, resulting in low WSS. When the sac depth/neck width ratio was less than 0.8, peak WSS correlated inversely with luminal diameter even in the saccular aneurysms. When this ratio exceeded 0.8, which was the case only with the saccular aneurysms, such correlation no longer existed and WSS was invariably low. Fusiform aneurysms elongate as they dilate, and WSS is lower as the diameter is larger. Saccular aneurysms dilate without proportionate elongation, and they, especially those occupying the inner curvature, have higher and variable sac depth/neck width ratio. When this ratio exceeds 0.8, WSS is low regardless of diameter, which may explain their malignant clinical behavior. Copyright © 2016 The American Association for Thoracic Surgery. Published by Elsevier Inc. All rights reserved.

  16. Complicated infective endocarditis: a case series.

    Science.gov (United States)

    Kim, Joo Seop; Kang, Min-Kyung; Cho, A Jin; Seo, Yu Bin; Kim, Kun Il

    2017-05-08

    Infective endocarditis is associated with not only cardiac complications but also neurologic, renal, musculoskeletal, and systemic complications related to the infection, such as embolization, metastatic infection, and mycotic aneurysm. We report three cases (the first patient is Chinese and the other two are Koreans) of complicated infective endocarditis; two of the cases were associated with a mycotic aneurysm, and one case was associated with a splenic abscess. One case of a patient with prosthetic valve endocarditis was complicated by intracerebral hemorrhage caused by mycotic aneurysm rupture. A second case of a patient with right-sided valve endocarditis associated with a central catheter was complicated by an abdominal aortic mycotic aneurysm. The third patient had a splenic infarction and abscess associated with infected cardiac thrombi. Complicated infective endocarditis is rare and is associated with cardiac, neurologic, renal, musculoskeletal, and systemic complications related to infection, such as embolization, metastatic infection, and mycotic aneurysm. Infective endocarditis caused by Staphylococcus aureus is more frequently associated with complications. Because the mortality rate increases when complications develop, aggressive antibiotic therapy and surgery, combined with specific treatments for the complications, are necessary.

  17. Emergency Endovascular Treatment of Abdominal Aortic Aneurysms: Feasibility and Results

    International Nuclear Information System (INIS)

    Lagana, Domenico; Carrafiello, Gianpaolo; Mangini, Monica; Fontana, Federico; Caronno, Roberto; Castelli, Patrizio; Cuffari, Salvatore; Fugazzola, Carlo

    2006-01-01

    Purpose. To assess the feasibility and effectiveness of emergency endovascular treatment of abdominal aortic aneurysms (AAAs). Methods. During 36 months we treated, on an emergency basis, 30 AAAs with endovascular exclusion. In 21 hemodynamically stable patients preoperative CT angiography (CTA) was performed to confirm the diagnosis and to plan the treatment; 9 patients with hemorrhagic shock were evaluated with angiography performed in the operating room. Twenty-two Excluder (Gore) and 8 Zenith (Cook) stent-grafts (25 bifurcated and 5 aorto-uni-iliac) were used. The follow-up was performed by CTA at 1, 3, 6, and 12 months. Results. Technical success was achieved in 100% of cases with a 10% mortality rate. The total complication rate was 23% (5 increases in serum creatinine level and 2 wound infections). During the follow-up, performed in 27 patients (1-36 months, mean 15.2 months), 4 secondary endoleaks (15%) (3 type II, 2 spontaneously thrombosed and 1 under observation, and 1 type III treated by iliac extender insertion) and 1 iliac leg occlusion (treated with femoro-femoral bypass) occurred. We observed a shrinkage of the aneurysmal sac in 8 of 27 cases and stability in 19 of 27 cases; we did not observe any endotension. Conclusions. Endovascular repair is a good option for emergency treatment of AAAs. The team's experience allows correct planning of the procedure in emergency situations also, with technical results comparable with elective repair. In our experience the bifurcated stent-graft is the device of choice in patients with suitable anatomy because the procedure is less time-consuming than aorto-uni-iliac stent-grafting with surgical crossover, allowing faster aneurysm exclusion. However, further studies are required to demonstrate the long-term efficacy of endovascular repair compared with surgical treatment

  18. Contemporary strategies for repair of complex thoracoabdominal aortic aneurysms: real-world experiences and multilayer stents as an alternative

    Directory of Open Access Journals (Sweden)

    Ralf Robert Kolvenbach

    Full Text Available Abstract Thoracoabdominal aortic aneurysms (TAAA present special challenges for repair due to their extent, their distinctive pathology, and the fact that they typically cross the ostia of one or more visceral branch vessels. Historically, the established treatment for TAAA was open surgical repair, with the first procedure reported in 1955. Endovascular repair of TAAA with fenestrated and/ or branched endografts, has been studied since the beginning of the current century as a means of mechanical aneurysm exclusion. More recently, flow modulator stents have been employed with the aim at reducing shear stress on aortic aneurysmal wall. In this review we present technical and main results of these techniques, based on literature review and personal experience.

  19. Contemporary Management of Type B Aortic Dissection in the Endovascular Era.

    Science.gov (United States)

    Bannazadeh, Mohsen; Tadros, Rami O; McKinsey, James; Chander, Rajiv; Marin, Michael L; Faries, Peter L

    2016-04-01

    Aortic dissection (AD) is one of the most common catastrophic pathologies affecting the aorta. Anatomic classification is based on the origin of entry tear and its extension. Type A dissections originate in the ascending aorta, whereas the entry tear in Type B dissections starts distal to the left subclavian artery. The patients with aortic dissection who manifest complications such as rupture, malperfusion, aneurysmal degeneration, and intractable pain are classified as complicated AD. Risk factors for developing aortic dissection include age, male gender, and aortic wall structural abnormalities. The most common presenting symptom of acute aortic dissection is pain. Malperfusion occurs as a result of end-organ ischemia due to involvement of aortic branches from the dissecting process. This can happen in various locations causing mesenteric ischemia (mesenteric vessels), stroke (aortic arch vessels), renal failure (renal arteries), spinal ischemia, and limb ischemia (iliac or subclavian arteries). Aneurysmal degeneration is the most common complication of patients with chronic Type B dissection who are managed with medical therapy. Management of Type B aortic dissection (TBAD) remains controversial. Many groups recommend conservative therapy for newly diagnosed TBAD and reserve surgical management for patients who develop complications such as rupture, malperfusion, aneurysmal dilatation, and refractory pain. The mainstay of medical therapy includes antihypertensive medication to reduced ΔP/ ΔT by lowering blood pressure and heart rate. With the continued success of thoracic endovascular aortic repair (TEVAR), this procedure has been extended to treat TBAD in selected patients. The outcomes of TEVAR are promising, with early mortality rates from 10% to 20%. With promising results from these series, some groups recommend early TEVAR in uncomplicated TBAD to prevent future adverse events. The goals of endovascular treatment of TBAD are to cover the entry tear

  20. Aneurysm of the membranous septum

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    Goebel, N; Haller, D; Hinterauer, L; Jenni, R

    1984-02-01

    Amongst 9000 patients on whom angiocardiograms has been carried out, a membranous septum aneurysm (MSA) was found in 47. In nine patients out of 27 the MSA could be demonstrated by sonography. The most common abnormalities accompanying this lesion were disturbances in rhythm and conduction (in 29 patients), ventricular septal defect in 29 and aortic insufficiency in 14. Complications included bacterial endocarditis in five patients (three with aortic insufficiency and two with sepsis lenta), aortic insufficiency (which was not of rheumatic or bacterial origin in three patients with conduction defects) and thirteen patients with abnormalities of cardiac rhythm with small VSDs.

  1. Aneurysm of the membranous septum

    International Nuclear Information System (INIS)

    Goebel, N.; Haller, D.; Hinterauer, L.; Jenni, R.; Zurich Univ.

    1984-01-01

    Amongst 9000 patients on whom angiocardiograms has been carried out, a membranous septum aneurysm (MSA) was found in 47. In nine patients out of 27 the MSA could be demonstrated by sonography. The most common abnormalities accompanying this lesion were disturbances in rhythm and conduction (in 29 patients), ventricular septal defect in 29 and aortic insufficiency in 14. Complications included bacterial endocarditis in five patients (three with aortic insufficiency and two with sepsis lenta), aortic insufficiency (which was not of rheumatic or bacterial origin in three patients with conduction defects) and thirteen patients with abnormalities of cardiac rhythm with small VSDs. (orig.) [de

  2. How to manage a case of aymptomatic thoraco-abdominal aortic aneurysm with occluded mesenteric arteries

    Directory of Open Access Journals (Sweden)

    Abhisekh Mohanty

    2015-12-01

    Full Text Available We report a unique case of a 57-year-old male having a suprarenal thoraco-abdominal aortic aneurysm which is extending till the origin of superior mesenteric artery (SMA. The origins of celiac artery and SMA were totally occluded and filled retrogradely through dense collateral vessels arising from the inferior mesenteric artery. Surprisingly, the patient was not having any symptoms related to mesenteric ischemia. We decided to use a conventional aortic aneurysm stent graft to repair it without revascularizing the occluded mesenteric arteries. After 1 month, CT aortogram was repeated which revealed a well-apposed stent graft with no endoleaks. He did not have any clinical signs and symptoms attributable to mesenteric ischemia.

  3. Development of a New Intravascular Low-Profile Device for Exclusion of Aortic Aneurysm: An Experimental Pilot Study

    International Nuclear Information System (INIS)

    Strecker, Ernst-Peter; Haberstroh, Joerg; Boos, Irene; Metz, Stephan; Langer, Mathias; Moliner, Manuel Maynar

    2004-01-01

    Purpose: To present a new intravascular device for the treatment of aorto-iliac aneurysms. Methods: This new device was tested in five dogs with abdominal aortic aneurysm created experimentally by overdilation of a balloon-expandable stent with a 16 or 18 mm wide PTA balloon catheter. The design of the device is based on a self-expanding aortic stent which consists of two stretchable circular frames filled with a textile Dacron mesh membrane that is suspended horizontally into the infrarenal abdominal aorta proximally to the aneurysm. The frames are part of a preshaped double helical structure that is introduced longitudinally through a catheter in a parallel fashion and forming the desired shape at the vessel site to be occluded. Two iliac stent-grafts are introduced in a low-profile status through the membrane sealing the aneurysm sac and holding the stent-grafts in place. After stent-graft expansion, a new bifurcation located more proximally than the natural one is created. The follow-up of the dogs was performed clinically and angiographically, and specimens were evaluated histomorphologically. Results: The membrane device can be introduced through a 9 Fr vascular sheath. Technical success was achieved in four of five dogs. Nine of ten stent-grafts could be fixed securely within the membrane, thus preventing dislocation. Aneurysms were excluded immediately, and blood flow to the external iliac arteries was restored by the stent-grafts. At 6-9 months follow-up of technically successful implanted devices, there were no endoleaks, no migration, no stenoses at contact sites between the implant material and vascular wall, and no stenosis or occlusion of the stent-grafts. At microscopic evaluation, the interspace between the membranes was filled with thrombotic material, thus ensuring exclusion of the aneurysm. Conclusion: This new device was found to be flexible, low profile and useful in excluding abdominal aortic aneurysm in the experimental setting

  4. Pilot study of dynamic cine CT angiography for the evaluation of abdominal aortic aneurysms : Implications for endograft treatment

    NARCIS (Netherlands)

    Teutelink, A; Rutten, A; Muhs, BE; Olree, M; van Herwaarden, JA; de Vos, AM; Prokop, M; Moll, FL; Verhagen, HJM

    Purpose: To utilize 40-slice electrocardiographically (ECG)-gated cine computed tomographic angiography (CTA) to characterize normal aortic motion during the cardiac cycle at relevant anatomical landmarks in preoperative abdominal aortic aneurysm (AAA) patients. Methods: In 10 consecutive

  5. Reinforced aortic root reconstruction for acute type A aortic dissection involving the aortic root

    Directory of Open Access Journals (Sweden)

    Han Qing-qi

    2013-06-01

    Full Text Available OBJECTIVE: There are debates regarding the optimal approach for AAAD involving the aortic root. We described a modified reinforced aortic root reconstruction approach for treating AAAD involving the aortic root. METHODS: A total of 161 patients with AAAD involving the aortic root were treated by our modified reinforced aortic root reconstruction approach from January 1998 to December 2008. Key features of our modified approach were placement of an autologous pericardial patch in the false lumen, lining of the sinotubular junction lumen with a polyester vascular ring, and wrapping of the vessel with Teflon strips. Outcome measures included post-operative mortality, survival, complications, and level of aortic regurgitation. RESULTS: A total of 161 patients were included in the study (mean age: 43.3 1 15.5 years. The mean duration of follow-up was 5.1 1 2.96 years (2-12 years. A total of 10 (6.2% and 11 (6.8% patients died during hospitalization and during follow-up, respectively. Thirty-one (19.3% patients experienced postoperative complications. The 1-, 3-, 5-, and 10-year survival rates were 99.3%, 98%, 93.8%, and 75.5%, respectively. There were no instances of recurrent aortic dissection, aortic aneurysm, or pseudoaneurysm during the entire study period. The severity of aortic regurgitation dramatically decreased immediately after surgery (from 28.6% to 0% grade 3-4 and thereafter slightly increased (from 0% to 7.2% at 5 years and 9.1% at 10 years. CONCLUSION: This modified reinforced aortic root reconstruction was feasible, safe and durable/effective, as indicated by its low mortality, low postoperative complications and high survival rate.

  6. Rupture of sinus of Valsalva aneurysm into both right atrium and ...

    African Journals Online (AJOL)

    A young man had a congenital sinus of Valsalva aneurysm originating from the right coronary sinus, complicated by fistulas draining into both right atrium and right ventricle, as well as a congenitally abnormal aortic valve with mild aortic insufficiency. His dramatic clinical presentation, with the sudden appearance of severe ...

  7. Pathogenetic Basis of Aortopathy and Aortic Valve Disease

    Science.gov (United States)

    2018-02-19

    Aortopathies; Thoracic Aortic Aneurysm; Aortic Valve Disease; Thoracic Aortic Disease; Thoracic Aortic Dissection; Thoracic Aortic Rupture; Ascending Aortic Disease; Descending Aortic Disease; Ascending Aortic Aneurysm; Descending Aortic Aneurysm; Marfan Syndrome; Loeys-Dietz Syndrome; Ehlers-Danlos Syndrome; Shprintzen-Goldberg Syndrome; Turner Syndrome; PHACE Syndrome; Autosomal Recessive Cutis Laxa; Congenital Contractural Arachnodactyly; Arterial Tortuosity Syndrome

  8. Immediate endovascular treatment of an aortoiliac aneurysm ruptured into the inferior vena cava.

    Science.gov (United States)

    Kopp, Reinhard; Weidenhagen, Rolf; Hoffmann, Ralf; Waggershauser, Tobias; Meimarakis, Georgios; Andrassy, Joachim; Clevert, Dirk; Czerner, Stephan; Jauch, Karl-Walter

    2006-07-01

    An aortocaval fistula is a severe complication of an aortoiliac aneurysm, usually associated with high perioperative morbidity and mortality during open operative repair. We describe the successful endovascular treatment of a symptomatic infrarenal aortic aneurysm ruptured into the inferior vena cava with secondary interventional coiling of a persistent type II endoleak because of retrograde perfusion of the inferior mesenteric artery. Endovascular exclusion of ruptured abdominal aneurysms seems to be a valuable treatment option for selected patients even with complicated vascular conditions like an aortocaval fistula.

  9. Chronic Contained Rupture of an Abdominal Aortic Aneurysm: From Diagnosis to Endovascular Resolution

    International Nuclear Information System (INIS)

    Gandini, Roberto; Chiocchi, Marcello; Maresca, Luciano; Pipitone, Vincenzo; Messina, Massimo; Simonetti, Giovanni

    2008-01-01

    A male patient, 69 years old, presented with fever, leucocytosis, and persistent low back pain; he also had an abdominal aortic aneurysm (AAA), as previously diagnosed by Doppler UltraSound (US), and was admitted to our hospital. On multislice computed tomography (msCT), a large abdominal mass having no definite border and involving the aorta and both of the psoas muscles was seen. This mass involved the forth-lumbar vertebra with lysis, thus simulating AAA rupture into a paraspinal collection; it was initially considered a paraspinal abscess. After magnetic resonance imaging examination and culture of the fluid aspirated from the mass, no infective organisms were found; therefore, a diagnosisof chronically contained AAA rupture was made, and an aortic endoprosthesis was subsequently implanted. The patient was discharged with decreased lumbar pain. At 12-month follow-up, no evidence of leakage was observed. To our knowledge, this is the first case of endoprosthesis implantation in a patient, who was a poor candidate for surgical intervention due to renal failure, leucocytosis and high fever, having a chronically contained AAA ruptured simulatingspodilodiscitis abscess. Appropriate diagnosis and therapy resolved potentially crippling pathology and avoided surgical graft-related complications.

  10. Evaluation of Aneurysm Neck Angle Change After Endovascular Aneurysm Repair Clinical Investigations

    Energy Technology Data Exchange (ETDEWEB)

    Le, Trong Binh; Moon, Mi Hyoung [Inha University Hospital, Endovascular Training Center (Korea, Republic of); Jeon, Yong Sun, E-mail: radjeon@inha.ac.kr [Inha University Hospital, Inha University School of Medicine, Department of Radiology (Korea, Republic of); Hong, Kee Chun [Inha University School of Medicine, Department of Vascular Surgery (Korea, Republic of); Cho, Soon Gu [Inha University Hospital, Inha University School of Medicine, Department of Radiology (Korea, Republic of); Park, Keun-Myoung [Inha University School of Medicine, Department of Vascular Surgery (Korea, Republic of)

    2016-05-15

    PurposeTo evaluate the aneurysm neck angle changes and post-endovascular aneurysm repair (EVAR) complications.MethodsWe retrospectively analyzed 72 cases of elective EVAR for abdominal aortic aneurysm among 109 consecutive cases from December 2005 to April 2014. Patients were divided into angulated and non-angulated groups. The angulated group was defined as neck angulation ≥60°. Neck angle was evaluated pre- and post-EVAR during short- (within 1 month), mid- (3–6 months), and long-term (>1 year) follow-up. Aneurysm sac diameter change, aneurysm neck morphology other than angulation, endoleaks, and other post-procedural complications were also documented.ResultsA total of 34 patients were enrolled in the angulated group. There were no statistical differences in age, sex, follow-up duration, and aneurysm neck profile between the two groups (p > 0.05). Both groups showed statistically significant and consistent decreases in angulation during the follow-up period (p < 0.01). The angulated group revealed 22.45 % more straightening than the non-angulated group. Recoil of the Endurant device occurred in the angulated group. No statistically significant intergroup differences were observed in any endoleaks, complications, or re-intervention rates (p > 0.05). Pre-EVAR angle was the only predictor for post-procedural angle change (p < 0.001).ConclusionEVAR is applicable for patients with highly angulated aneurysm neck and provides consistent neck straightening over long-term follow-up. Recoil was evident in the angulated group using the Endurant device.

  11. Ruptured Abdominal Aortic Aneurysm: Prediction of Mortality From Clinical Presentation and Glasgow Aneurysm Score.

    Science.gov (United States)

    Weingarten, Toby N; Thompson, Lauren T; Licatino, Lauren K; Bailey, Christopher H; Schroeder, Darrell R; Sprung, Juraj

    2016-04-01

    To examine association of presenting clinical acuity and Glasgow Aneurysm Score (GAS) with perioperative and 1-year mortality. Retrospective chart review. Major tertiary care facility. Patients with ruptured abdominal aortic aneurysm (rAAA) from 2003 through 2013. Emergency repair of rAAA. The authors reviewed outcomes after stable versus unstable presentation and by GAS. Unstable presentation included hypotension, cardiac arrest, loss of consciousness, and preoperative tracheal intubation. In total, 125 patients (40 stable) underwent repair. Perioperative mortality rates were 41% and 12% in unstable and stable patients, respectively (pClinical presentation and GAS identified patients with rAAA who were likely to have a poor surgical outcome. GAS≥96 was associated with poor long-term survival, but>20% of these patients survived 1 year. Thus, neither clinical presentation nor GAS provided reliable guidance for decisions regarding futility of surgery. Copyright © 2016 Elsevier Inc. All rights reserved.

  12. Familial Thoracic Aortic Aneurysm with Dissection Presenting as Flash Pulmonary Edema in a 26-Year-Old Man

    Directory of Open Access Journals (Sweden)

    Sabry Omar

    2014-01-01

    Full Text Available We are reporting a case of familial thoracic aortic aneurysm and dissection in a 26-year-old man with no significant past medical history and a family history of dissecting aortic aneurysm in his mother at the age of 40. The patient presented with cough, shortness of breath, and chest pain. Chest X-ray showed bilateral pulmonary infiltrates. CT scan of the chest showed a dissection of the ascending aorta. The patient underwent aortic dissection repair and three months later he returned to our hospital with new complaints of back pain. CT angiography showed a new aortic dissection extending from the left carotid artery through the bifurcation and into the iliac arteries. The patient underwent replacement of the aortic root, ascending aorta, total aortic arch, and aortic valve. The patient recovered well postoperatively. Genetic studies of the patient and his children revealed no mutations in ACTA2, TGFBR1, TGFBR2, TGFB2, MYH11, MYLK, SMAD3, or FBN1. This case report focuses on a patient with familial TAAD and discusses the associated genetic loci and available screening methods. It is important to recognize potential cases of familial TAAD and understand the available screening methods since early diagnosis allows appropriate management of risk factors and treatment when necessary.

  13. Ultrasound screening for abdominal aortic aneurysms.

    Science.gov (United States)

    Engelberger, Stephan; Rosso, Raffaele; Sarti, Manuela; Del Grande, Filippo; Canevascini, Reto; van den Berg, Jos C; Prouse, Giorgio; Giovannacci, Luca

    2017-03-21

    This pilot study aimed to assess the feasibility, acceptance and costs of an ultrasound scan screening programme for abdominal aortic aneurysms (AAA) in the elderly male population resident in Canton Ticino, Switzerland. The target population were male patients aged 65-80 years who attended the outpatient clinics of the Lugano Regional Hospital in 2013. The patients showing interest were contacted by phone to verify their eligibility and fix the appointment for the ultrasound scan of the abdominal aorta. Patients with recent examinations suitable for AAA detection were excluded. Aneurysm was defined as an abdominal aorta with sagittal and/or axial diameter  30 mm. Patients' characteristics and study results were presented as descriptive statistics. The chi-squared test was used to compare categorical variables with p rate was 68.3%. A previously unknown AAA was diagnosed in 31 patients (4.2%, 95% confidence interval 2.8-5.9%). Age and area of residence had a statistically significant impact on patient's acceptance rate (p <0.05). The mean cost per screened patient was CHF 88. AAA screening of male patients aged 65-80 years is feasible with limited financial and organisational effort. Adherence might be improved by a larger community-based programme and involvement of general practitioners.

  14. In vivo characterization of a new abdominal aortic aneurysm mouse model with conventional and molecular magnetic resonance imaging

    NARCIS (Netherlands)

    Klink, Ahmed; Heynens, Joeri; Herranz, Beatriz; Lobatto, Mark E.; Arias, Teresa; Sanders, Honorius M. H. F.; Strijkers, Gustav J.; Merkx, Maarten; Nicolay, Klaas; Fuster, Valentin; Tedgui, Alain; Mallat, Ziad; Mulder, Willem J. M.; Fayad, Zahi A.

    2011-01-01

    The goal of this study was to use noninvasive conventional and molecular magnetic resonance imaging (MRI) to detect and characterize abdominal aortic aneurysms (AAAs) in vivo. Collagen is an essential constituent of aneurysms. Noninvasive MRI of collagen may represent an opportunity to help detect

  15. Aortic aneurysm and non-Hodgkin’s lymphoma in Marfan syndrome

    Directory of Open Access Journals (Sweden)

    Sujoy Ghosh

    2009-03-01

    Full Text Available The combination of Marfan syndrome with lymphoma is extremely rare. This report describes a case of Marfan syndrome who presented with chest discomfort and was diagnosed to have an aortic aneurysm and an additional incidental mediastinal mass that on further investigation turned out to be a diffuse large B cell lymphoma. We have suggested a hypothesis which can explain the occurrence of lymphoma in Marfan syndrome.

  16. Hoarseness —As a presenting feature of aortic arch aneurysm

    OpenAIRE

    Mathai, John; Swapna, U. P.

    2006-01-01

    Hoarseness due to left recurrent laryngeal nerve paralysis (LRLN) caused by identifiable cardiovascular disease is described as Ortner’s syndrome or Cardiovocal syndrome. This was first described by Ortner in 1897 to describe left recurrent laryngeal nerve palsy secondary to Mitral Stenosis. The common conditions which gave rise to Ortners’ syndrome include mitral stenosis, mitral valve prolapse, aortic aneurysm, septal defect, following cardiothoracic surgery, high altitude pulmonary hyperte...

  17. Endovascular repair of early rupture of Dacron aortic graft--two case reports.

    LENUS (Irish Health Repository)

    Sultan, Sherif

    2005-01-01

    Complications after open aortic surgery pose a challenge both to the vascular surgeon and the patient because of aging population, widespread use of cardiac revascularization, and improved survival after aortic surgery. The perioperative mortality rate for redo elective aortic surgery ranges from 5% to 29% and increases to 70-100% in emergency situation. Endovascular treatment of the postaortic open surgery (PAOS) patient has fewer complications and a lower mortality rate in comparison with redo open surgical repair. Two cases of ruptured abdominal aortic aneurysm (AAA) were managed with the conventional open surgical repair. Subsequently, spiral contrast computer tomography scans showed reperfusion of the AAA sac remnant mimicking a type III endoleak. These graft-related complications presented as vascular emergencies, and in both cases endovascular aneurysm repair (EVAR) procedure was performed successfully by aortouniiliac (AUI) stent graft and femorofemoral crossover bypass. These 2 patients add further merit to the cases reported in the English literature. This highlights the crucial importance of endovascular grafts in the management of such complex vascular problems.

  18. Metformin treatment does not affect the risk of ruptured abdominal aortic aneurysms

    DEFF Research Database (Denmark)

    Kristensen, Katrine L.; Pottegård, Anton; Hallas, Jesper

    2017-01-01

    Objective: Diabetes counteracts formation and rupture of abdominal aortic aneurysms, possibly through arterial matrix accumulation. Use of metformin, on the other hand, reduces arterial accumulation of matrix molecules. Consequently, we hypothesized that metformin treatment may reverse...... the protective role of diabetes on the development and course of aneurysms, that is, that metformin would be associated with aneurysm rupture among individuals with diabetes. Methods: Using nationwide Danish registry data, we performed a nested case-control study on the association between long-term use....... In total, 22.4% of the case population were long-term metformin users compared with 28.8% of the controls. We found a statistically nonsignificant protective effect of long-term metformin use toward RAAA with crude odds ratio (OR) of 0.74 (confidence interval, 0.54-1.00). When adjusted for covariates...

  19. Chimney-Graft as a Bail-Out Procedure for Endovascular Treatment of an Inflammatory Juxtarenal Abdominal Aortic Aneurysm

    Directory of Open Access Journals (Sweden)

    Francesca Fratesi

    2015-01-01

    Full Text Available Inflammatory and juxtarenal Abdominal Aortic Aneurysm (j-iAAA represents a technical challenge for open repair (OR due to the peculiar anatomy, extensive perianeurysmal fibrosis, and dense adhesion to the surrounding tissues. A 68-year-old man with an 11 cm asymptomatic j-iAAA was successfully treated with elective EVAR and chimney-graft (ch-EVAR without postprocedural complications. Target vessel patency and normal renal function are present at 24-month follow-up. The treatment of j-iAAA can be technically challenging. ch-EVAR is a feasible and safe bail-out method for elective j-iAAA with challenging anatomy.

  20. Aneurisma de la aorta abdominal: Tratamiento endovascular con una endoprótesis fenestrada Abdominal aortic aneurysm: Endovascular treatment with fenestrated endoprothesis

    Directory of Open Access Journals (Sweden)

    Román Rostagno

    2008-12-01

    Full Text Available El tratamiento endovascular de los aneurismas de aorta abdominal es una alternativa a la cirugía abierta para pacientes de alto riesgo. Consiste en la exclusión del saco aneurismático mediante la interposición de una endoprótesis colocada por vía femoral. El tratamiento endovascular no puede ser utilizado en todos los pacientes. Una limitación frecuente la constituye el nacimiento de una arteria visceral desde el saco aneurismático. Para contrarrestar esta limitación recientemente se han desarrollado endoprótesis fenestradas que presentan orificios que se corresponden con el nacimiento de las arterias involucradas en el aneurisma evitando su oclusión, permitiendo de esta manera el tratamiento endovascular. En esta comunicación se presenta un caso de tratamiento endovascular de un aneurisma de aorta abdominal mediante la colocación de una endoprótesis fenestrada en un paciente cuya arteria renal izquierda nacía directamente del saco aneurismático.Endovascular treatment of the abdominal aortic aneurysm is consider an alternative to open surgery for high risk patients. Its goal is to exclude the aneurysm from the circulation by using an endoprothesis introduced from a femoral approach. Patients must be strictly selected to avoid possible complications. The most frequent limitation is related to anatomic contraindications such as visceral arteries involved in the aneurysm. Fenestrated endograft have been recently developed to allow endovascular treatment when anatomic features contraindicate classic endovascular procedures. Fenestrated endograft have holes that match with the origin of the visceral arteries maintaining its potency. In this paper we report the endovascular treatment of an abdominal aortic aneurysm by using a fenestrated endoprothesis in a patient whose left renal artery is originated from the aneurysm.

  1. Duplex ultrasound and computed tomography angiography in the follow-up of endovascular abdominal aortic aneurysm repair: a comparative study

    International Nuclear Information System (INIS)

    Cantador, Alex Aparecido; Siqueira, Daniel Emilio Dalledone; Jacobsen, Octavio Barcellos; Baracat, Jamal; Pereira, Ines Minniti Rodrigues; Menezes, Fabio Hüsemann; Guillaumon, Ana Terezinha

    2016-01-01

    Objective: To compare duplex ultrasound and computed tomography (CT) angiography in terms of their performance in detecting endoleaks, as well as in determining the diameter of the aneurysm sac, in the postoperative follow-up of endovascular abdominal aortic aneurysm repair. Materials and Methods: This was a prospective study involving 30 patients who had undergone endovascular repair of infrarenal aortoiliac aneurysms. Duplex ultrasound and CT angiography were performed simultaneously by independent radiologists. Measurements of the aneurysm sac diameter were assessed, and the presence or absence of endoleaks was determined. Results: The average diameter of the aneurysm sac, as determined by duplex ultrasound and CT angiography was 6.09 ± 1.95 and 6.27 ± 2.16 cm, respectively. Pearson's correlation coefficient showing a statistically significant correlation (R = 0.88; p < 0.01). Comparing the duplex ultrasound and CT angiography results regarding the detection of endoleaks, we found that the former had a negative predictive value of 92.59% and a specificity of 96.15%. Conclusion: Our results show that there is little variation between the two methods evaluated, and that the choice between the two would have no significant effect on clinical management. Duplex ultrasound could replace CT angiography in the postoperative follow-up of endovascular aneurysm repair of the infrarenal aorta, because it is a low-cost procedure without the potential clinical complications related to the use of iodinated contrast and exposure to radiation. (author)

  2. Duplex ultrasound and computed tomography angiography in the follow-up of endovascular abdominal aortic aneurysm repair: a comparative study

    Energy Technology Data Exchange (ETDEWEB)

    Cantador, Alex Aparecido; Siqueira, Daniel Emilio Dalledone; Jacobsen, Octavio Barcellos; Baracat, Jamal; Pereira, Ines Minniti Rodrigues; Menezes, Fabio Hüsemann; Guillaumon, Ana Terezinha, E-mail: alex_cantador@yahoo.com.br [Universidade Estadual de Campinas (FCM/UNICAMP), Campinas, SP (Brazil). Faculdade de Ciencias Medicas

    2016-07-15

    Objective: To compare duplex ultrasound and computed tomography (CT) angiography in terms of their performance in detecting endoleaks, as well as in determining the diameter of the aneurysm sac, in the postoperative follow-up of endovascular abdominal aortic aneurysm repair. Materials and Methods: This was a prospective study involving 30 patients who had undergone endovascular repair of infrarenal aortoiliac aneurysms. Duplex ultrasound and CT angiography were performed simultaneously by independent radiologists. Measurements of the aneurysm sac diameter were assessed, and the presence or absence of endoleaks was determined. Results: The average diameter of the aneurysm sac, as determined by duplex ultrasound and CT angiography was 6.09 ± 1.95 and 6.27 ± 2.16 cm, respectively. Pearson's correlation coefficient showing a statistically significant correlation (R = 0.88; p < 0.01). Comparing the duplex ultrasound and CT angiography results regarding the detection of endoleaks, we found that the former had a negative predictive value of 92.59% and a specificity of 96.15%. Conclusion: Our results show that there is little variation between the two methods evaluated, and that the choice between the two would have no significant effect on clinical management. Duplex ultrasound could replace CT angiography in the postoperative follow-up of endovascular aneurysm repair of the infrarenal aorta, because it is a low-cost procedure without the potential clinical complications related to the use of iodinated contrast and exposure to radiation. (author)

  3. Influence of atmospheric pressure on infrarenal abdominal aortic aneurysm rupture.

    Science.gov (United States)

    Robert, Nicolas; Frank, Michael; Avenin, Laure; Hemery, Francois; Becquemin, Jean Pierre

    2014-04-01

    Meteorologic conditions have a significant impact on the occurrence of cardiovascular events. Previous studies have shown that abdominal aortic aneurysm rupture (AAAR) may be associated with atmospheric pressure, with conflicting results. Therefore, we aimed to further investigate the nature of the correlation between atmospheric pressure variations and AAAR. Hospital admissions related to AAAR between 2005-2009 were assessed in 19 districts of metropolitan France and correlated with geographically and date-matched mean atmospheric pressures. In parallel and from 2005-2009, all fatal AAARs as reported by death certificates were assessed nationwide and correlated to local atmospheric pressures at the time of aortic rupture. Four hundred ninety-four hospital admissions related to AAAR and 6,358 deaths nationwide by AAAR were identified between 2005-2009. Both in-hospital ruptures and aneurysm-related mortality had seasonal variations, with peak/trough incidences in January and June, respectively. Atmospheric pressure peaks occurred during winter. Univariate analysis revealed a significant association (P atmospheric pressure values and AAAR. After multivariate analysis, mean maximum 1-month prerupture atmospheric pressure had a persistent correlation with both in-hospital relative risk (1.05 [95% confidence interval: 1.03-1.06]; P atmospheric pressure. Copyright © 2014 Elsevier Inc. All rights reserved.

  4. Comparison of Colour Duplex Ultrasound with Computed Tomography to Measure the Maximum Abdominal Aortic Aneurysmal Diameter

    Directory of Open Access Journals (Sweden)

    C. Gray

    2014-01-01

    Full Text Available Introduction. Maximum diameter of an abdominal aortic aneurysm (AAA is the main indication for surgery. This study compared colour duplex ultrasound (CDU and computed tomography (CT in assessing AAA diameter. Patients and Methods. Patients were included if they had both scans performed within 90 days. Pearson’s correlation coefficient, paired t-test, and limits of agreement (LOA were calculated for the whole group. Subgroup analysis of small (6.5 cm aneurysms was performed. A P value of <0.05 was considered statistically significant. Results. 389 patients were included, giving 130 pairs of tests for comparison. Excellent correlation was in the whole group (r = 0.95 and in the subgroups (r = 0.94; 0.69; 0.96, resp.. Small LOA between the two imaging modalities was found in all subgroups. Conclusion. Small aneurysms can be accurately measured using CDU. CDU is preferable for small AAAs, but cannot supplant CT for planning aortic intervention.

  5. Clinical and genetic aspects of Marfan syndrome and familial thoracic aortic aneurysms and dissections

    NARCIS (Netherlands)

    Hilhorst-Hofstee, Yvonne

    2013-01-01

    This thesis concerns the clinical and genetic aspects of familial thoracic aortic aneurysms and dissections, in particular in Marfan syndrome. It includes the Dutch multidisciplinary guidelines for diagnosis and management of Marfan syndrome. These guidelines contain practical directions for

  6. Plasma levels of cathepsins L, K, and V and risks of abdominal aortic aneurysms

    DEFF Research Database (Denmark)

    Lv, Bing-Jie; Lindholt, Jes S; Wang, Jing

    2013-01-01

    Cathepsin L (CatL), cathepsin K (CatK), and cathepsin V (CatV) are potent elastases implicated in human arterial wall remodeling. Whether plasma levels of these cathepsins are altered in patients with abdominal aortic aneurysms (AAAs) remains unknown....

  7. Risk of abdominal aortic aneurysm (AAA) among male and female relatives of AAA patients.

    Science.gov (United States)

    van de Luijtgaarden, Koen M; Rouwet, Ellen V; Hoeks, Sanne E; Stolker, Robert J; Verhagen, Hence Jm; Majoor-Krakauer, Danielle

    2017-04-01

    Sex affects the presentation, treatment, and outcomes of abdominal aortic aneurysm (AAA). Although AAAs are less prevalent in women, at least in the general population, women with an AAA have a poorer prognosis in comparison to men. Sex differences in the genetic predisposition for aneurysm disease remain to be established. In this study we investigated the familial risk of AAA for women compared to men. All living AAA patients included in a 2004-2012 prospective database were invited to the multidisciplinary vascular/genetics outpatient clinic between 2009 and 2012 for assessment of family history using detailed questionnaires. AAA risk for male and female relatives was calculated separately and stratified by sex of the AAA patients. Families of 568 AAA patients were investigated and 22.5% of the patients had at least one affected relative. Female relatives had a 2.8-fold and male relatives had a 1.7-fold higher risk than the estimated sex-specific population risk. Relatives of female AAA patients had a higher aneurysm risk than relatives of male patients (9.0 vs 5.9%, p = 0.022), corresponding to 5.5- and 2.0-fold increases in aneurysm risk in the female and male relatives, respectively. The risk for aortic aneurysm in relatives of AAA patients is higher than expected from population risk. The excess risk is highest for the female relatives of AAA patients and for the relatives of female AAA patients. These findings endorse targeted AAA family screening for female and male relatives of all AAA patients.

  8. Abdominal aortic aneurysm in a premature neonate with disseminated candidiasis: Ultrasound and angiography

    Energy Technology Data Exchange (ETDEWEB)

    Khoss, A.E.; Ponhold, W.; Pollak, A.; Schlemmer, M.; Weninger, M.

    1985-09-01

    When using ultrasound for detection of kidney enlargement, we found an acute abdominal aortic aneurysm secondary to aortitis arising from umbilical artery catheterisation in a premature neonate with systemic candidiasis. Aortography was performed to provide vascular details such as involvement of celiac, renal, iliac and femoral arteries.

  9. Induction of continuous expanding infrarenal aortic aneurysms in a large porcine animal model

    DEFF Research Database (Denmark)

    Kloster, Brian Ozeraitis; Lund, Lars; Lindholt, Jes S.

    2015-01-01

    BackgroundA large animal model with a continuous expanding infrarenal aortic aneurysm gives access to a more realistic AAA model with anatomy and physiology similar to humans, and thus allows for new experimental research in the natural history and treatment options of the disease. Methods10 pigs...

  10. Anatomic changes of target vessels after fenestrated and branched aortic aneurysm repair.

    Science.gov (United States)

    Kalder, J; Keschenau, P; Tamm, M; Jalaie, H; Jacobs, M J; Greiner, A

    2014-04-01

    Objective of this study was to evaluate the anatomic changes of the stented target vessels after endovascular repair of complex aortic aneurysms. Between July 2011 and December 2013, 53 aortic aneurysms were treated in our department with fenestrated and branched stent-graft devices. Forty-two of these patients were pre- and postoperatively scanned with a high resolution computer tomography (CT) (Cook Zenith® fenestrated or branched, Australia Pty. Ltd., Brisbane, Australia: N.=19; AnacondaTM fenestrated, Vascutek, Glasgow, Scotland, UK: N.=23). The other 11 out of the 53 patients did not receive a CT scan, because of a pre-existing renal failure. In the CT scans we retrospectively evaluated the anatomic vessel deviation at the origin of the target vessel and the vessel shift distal to the stent. For the first measurement the CT scans were loaded into OsiriX MD®, and the pre- and postoperative angles of the target vessels were measured and subtracted. For matching, the CT-scans were normalized at vertebral body lumbar 2. The second measured angle was the maximal measured angle distal to the target vessel stent-graft. Altogether, 113 target vessels were stented (celiac trunk [CT] 15, superior mesenteric arteries [SMA] 26, renal arteries [RA] 72), with 97 balloon-expandable PTFE stents: 90 Atrium V12 (Maquet Getinge group, Hudson, NH, USA), 7 BeGrafts (Bentley InnoMed, Hechingen, Germany) and 16 self-expandable fluency PTFE stents (Bard, Karlsruhe, Germany). The mean anatomic deviation at the target vessel origin was 28±17.3 and the mean vessel shift distal to the stent was 36.3±18.8. There were no significant differences between the main device and the target vessel stent types. Fenestrated and branched stent-graft solutions for aortic aneurysm repair induce changes of the target vessel anatomy. We did not observe significant differences between the several devices.

  11. Extending Abdominal Aortic Aneurysm Detection to Older Age Groups

    DEFF Research Database (Denmark)

    Makrygiannis, Georgios; Labalue, Philippe; Erpicum, Marie

    2016-01-01

    . Current screening policies (e.g., men aged 65-74 years), however, do not account for aging and increased life expectancy of Western populations. This study investigated AAA detection by extending the target population to older age groups (75-85 years). METHODS: AAA screening was conducted in the County......-74 age group but rose to 7.3% in the age-extended group (75-85 years). Further in addition to age, height, current smoking, history of coronary artery disease, hypercholesterolemia, peripheral artery disease of the lower limbs, and varicose veins were significantly associated with the presence of AAA......BACKGROUND: There is evident benefit in terms of reduced aneurysm-related mortality from screening programs of abdominal aortic aneurysm (AAA) in men aged 65 years and more. Recent studies in the United Kingdom and Sweden have shown a decline of the prevalence of AAA in the general population...

  12. “ELEPHANT TRUNK” AND ENDOVASCULAR STENTGRAFTING – A HYBRID APPROACH TO THE TREATMENT OF EXTENSIVE THORACIC AORTIC ANEURYSM

    Directory of Open Access Journals (Sweden)

    Tomáš Holubec

    2013-01-01

    Full Text Available A hybrid approach to elephant trunk technique for treatment of thoracic aortic aneurysms combines a conventional surgical and endovascular therapy. Compared to surgery alone, there is a presumption that mortality and morbidity is reduced. We present a case report of a 42-year-old man with a giant aneurysm of the entire thoracic aorta, significant aortic and tricuspid regurgitation and ventricular septum defect. The patient underwent multiple consecutive operations and interventions having, among others, finally replaced the entire thoracic aorta with the use of the hybrid elephant trunk technique.

  13. Aortic dissection. Basic aspects and endovascular management

    International Nuclear Information System (INIS)

    Jaramillo, Nicolas I; Alviar, Carlos I

    2005-01-01

    Treatment of thoracic aortic pathology is complicated by the morbidity associated to the surgical procedure and to the frailty of an elderly and difficult population. Surgical operation in this kind of population frequently bears a significant incidence of death and long-term disability. In an effort to reduce the incidence of negative outcomes, minimally invasive techniques in the form of endovascular stenting have been introduced during the past decade. The technology, originally described by Parodi, and initially designed for its use in abdominal aortic aneurysms, has been adapted for the treatment of thoracic aortic aneurysms. Furthermore, an improved understanding of the pathophysiology and the natural history of thoracic aortic disease as well as the analysis of the outcomes have facilitated our treatment decisions in terms of the timing for an appropriate intervention. Treatment of thoracic aortic dissection using endovascular Stent is one of the more recent advances in this condition and is receiving increasing attention, as it is a less invasive alternative to an open surgical repair. Although this technology is still innovative, significant improvements have been made lately in the design and deployment of the endovascular Stent-grafts. These prostheses have been increasingly used to treat aneurysms, dissections and traumatic ruptures, as well as giant penetrating ulcers and intramural hematomas of the descending thoracic aorta with good early and mid-term outcomes. The rareness, complexity and severity of the pathology and the theoretically high risk of complications should render the surgeon extremely cautious especially with young patients. Conceptually, the endo luminal treatment in the acute phase seems to be the solution and will probably become a preferred therapy while technical refinement is under way. Worldwide experience is growing and with this a better understanding of the indications and limitations of this innovative therapy will be

  14. Computational Fluid Dynamics: Hemodynamic Changes in Abdominal Aortic Aneurysm After Stent-Graft Implantation

    International Nuclear Information System (INIS)

    Frauenfelder, Thomas; Lotfey, Mourad; Boehm, Thomas; Wildermuth, Simon

    2006-01-01

    The aim of this study was to demonstrate quantitatively and qualitatively the hemodynamic changes in abdominal aortic aneurysms (AAA) after stent-graft placement based on multidetector CT angiography (MDCT-A) datasets using the possibilities of computational fluid dynamics (CFD). Eleven patients with AAA and one patient with left-side common iliac aneurysm undergoing MDCT-A before and after stent-graft implantation were included. Based on the CT datasets, three-dimensional grid-based models of AAA were built. The minimal size of tetrahedrons was determined for grid-independence simulation. The CFD program was validated by comparing the calculated flow with an experimentally generated flow in an identical, anatomically correct silicon model of an AAA. Based on the results, pulsatile flow was simulated. A laminar, incompressible flow-based inlet condition, zero traction-force outlet boundary, and a no-slip wall boundary condition was applied. The measured flow volume and visualized flow pattern, wall pressure, and wall shear stress before and after stent-graft implantation were compared. The experimentally and numerically generated streamlines are highly congruent. After stenting, the simulation shows a reduction of wall pressure and wall shear stress and a more equal flow through both external iliac arteries after stenting. The postimplantation flow pattern is characterized by a reduction of turbulences. New areas of high pressure and shear stress appear at the stent bifurcation and docking area. CFD is a versatile and noninvasive tool to demonstrate changes of flow rate and flow pattern caused by stent-graft implantation. The desired effect and possible complications of a stent-graft implantation can be visualized. CFD is a highly promising technique and improves our understanding of the local structural and fluid dynamic conditions for abdominal aortic stent placement

  15. Outcomes and Prognostic Factors of Endovascular Abdominal Aortic Aneurysm Repair in Patients with Hostile Neck Anatomy

    International Nuclear Information System (INIS)

    Jung, Hye Doo; Lee, Yun Young; Lee, Seung Jin; Yim, Nam Yeol; Kim, Jae Kyu; Choi, Soo Jin Na; Jung, Sang Young; Chang, Nam Kyu; Lim, Jae Hoon

    2012-01-01

    To evaluate the outcomes and find the prognostic factors of endovascular abdominal aortic aneurysm repair (EVAR) in patients with hostile neck anatomy of the abdominal aorta. This study was performed on 100 patients with abdominal aneurysm who were treated with EVAR between March 2006 and December 2010. We divided the patients into two groups: good neck anatomy (GNA), and hostile neck anatomy (HNA) and then compared the primary success rate and the incidence rate of complications with EVAR between the two groups. Our aim was to determine the factors related to the complications of EVAR among HNA types. There were no significant differences of primary success rate and incidence rate of complications between the two groups. Among the types of HNA, the short neck angle [odd ratio (OR), 4.23; 95% confidence interval (CI), 1.21-18.70; p = 0.023] and large neck angle (OR, 2.58; 95% CI, 0.15-11.85; p = 0.031) showed a low primary success rate. The short neck angle (OR, 2.32; 95% CI, 1.18-12.29; p = 0.002) and large neck angle (OR, 4.67; 95% CI, 0.14-19.07; p = 0.032) showed a high incidence rate of early type 1 complication. In the case of the large neck angle (OR, 3.78; 95% CI, 0.96-20.80; p = 0.047), the large neck thrombus (OR, 2.23; 95% CI, 0.24-7.12; p = 0.035) and large neck calcification (OR, 2.50; 95% CI, 0.08-18.37; p 0.043) showed a high incidence rate of complications within a year. The results suggest that patients with hostile neck anatomy can be treated with EVAR successfully, although there was a higher incidence of complications in patients with a short neck length, severe neck angulation, circumferential thrombosis, and calcified proximal neck.

  16. Extra-Thoracic Supra-aortic Bypass Surgery Is Safe in Thoracic Endovascular Aortic Repair and Arterial Occlusive Disease Treatment.

    Science.gov (United States)

    Gombert, Alexander; van Issum, Lea; Barbati, Mohammad E; Grommes, Jochen; Keszei, Andras; Kotelis, Drosos; Jalaie, Houman; Greiner, Andreas; Jacobs, Michael J; Kalder, Johannes

    2018-04-20

    The safety and feasibility of supra-aortic debranching as part of endovascular aortic surgery or as a treatment option for arterial occlusive disease (AOD) remains controversial. The aim of this study was to assess the clinical outcome of this surgery. This single centre, retrospective study included 107 patients (mean age 69.2 years, 38.4% women) who underwent supra-aortic bypass surgery (carotid-subclavian bypass, carotid-carotid bypass, and carotid-carotid-subclavian bypass) because of thoracic or thoraco-abdominal endovascular aortic repair (57%; 61/107) or as AOD treatment (42.9%; 46/107) between January 2006 and January 2015. Mortality, morbidity with a focus on neurological complications, and patency rate were assessed. Twenty-six of 107 (14.2%) of the debranching patients were treated under emergency conditions because of acute type B dissection or symptomatic aneurysm. Follow up, conducted by imaging interpretation and telephone interviews, continued till March 2017 (mean 42.1, 0-125, months). The in hospital mortality rate was 10.2% (11/107), all of these cases from the debranching group and related to emergency procedures (p supra-aortic bypass surgery involves low complication rates and high mid-term bypass patency rates. It is a safe and feasible treatment option in the form of debranching in combination with endovascular aortic aneurysm repair and in AOD. Copyright © 2018 European Society for Vascular Surgery. Published by Elsevier B.V. All rights reserved.

  17. Abdominal aortic aneurysm in a premature neonate with disseminated candidiasis: Ultrasound and angiography

    International Nuclear Information System (INIS)

    Khoss, A.E.; Ponhold, W.; Pollak, A.; Schlemmer, M.; Weninger, M.

    1985-01-01

    When using ultrasound for detection of kidney enlargement, we found an acute abdominal aortic aneurysm secondary to aortitis arising from umbilical artery catheterisation in a premature neonate with systemic candidiasis. Aortography was performed to provide vascular details such as involvement of celiac, renal, iliac and femoral arteries. (orig.)

  18. The relevance of aortic endograft prosthetic infection

    NARCIS (Netherlands)

    Cernohorsky, Paul; Reijnen, Michel M. P. J.; Tielliu, Ignace F. J.; van Sterkenburg, Steven M. M.; van den Dungen, Jan J. A. M.; Zeebregts, Clark J.

    Background: Vascular prosthetic graft infection is a severe complication after open aortic aneurysm repair. Reports of infected endografts are scarce. General treatment consensus with infected graft material is that it should be removed completely. The objective of this study was to describe the

  19. Preventative valve-sparing aortic root replacement and pregnancy outcome in Marfan syndrome.

    Science.gov (United States)

    Sokol, Vesna; Zlopasa, Gordan; Herman, Mislav; Planinić, Pavao; Micevska, Ana

    2012-06-01

    In Marfan syndrome, with dilatation of the aortic root secondary to an underlying connective tissue defect, pregnancy can cause hemodynamic stress leading to the development of an aortic aneurysm and even a fatal aortic dissection. In the presence of existing aortic root enlargement and a family history of aortic dissection, preventative elective surgery is suggested. Aortic root replacement with or without a valve-sparing procedure is superior to total aortic root replacement with prosthetic valve/tube graft. It provides excellent survival with low rates of aortic - valve related complications.

  20. Andrographolide Ameliorates Abdominal Aortic Aneurysm Progression by Inhibiting Inflammatory Cell Infiltration through Downregulation of Cytokine and Integrin Expression

    Science.gov (United States)

    Ren, Jun; Liu, Zhenjie; Wang, Qiwei; Giles, Jasmine; Greenberg, Jason; Sheibani, Nader; Kent, K. Craig

    2016-01-01

    Abdominal aortic aneurysm (AAA), characterized by exuberant inflammation and tissue deterioration, is a common aortic disease associated with a high mortality rate. There is currently no established pharmacological therapy to treat this progressive disease. Andrographolide (Andro), a major bioactive component of the herbaceous plant Andrographis paniculata, has been found to exhibit potent anti-inflammatory properties by inhibiting nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB) activity in several disease models. In this study, we investigated the ability of Andro to suppress inflammation associated with aneurysms, and whether it may be used to block the progression of AAA. Whereas diseased aortae continued to expand in the solvent-treated group, daily administration of Andro to mice with small aneurysms significantly attenuated aneurysm growth, as measured by the diminished expansion of aortic diameter (165.68 ± 15.85% vs. 90.62 ± 22.91%, P < 0.05). Immunohistochemistry analyses revealed that Andro decreased infiltration of monocytes/macrophages and T cells. Mechanistically, Andro inhibited arterial NF-κB activation and reduced the production of proinflammatory cytokines [CCL2, CXCL10, tumor necrosis factor α, and interferon-γ] in the treated aortae. Furthermore, Andro suppressed α4 integrin expression and attenuated the ability of monocytes/macrophages to adhere to activated endothelial cells. These results indicate that Andro suppresses progression of AAA, likely through inhibition of inflammatory cell infiltration via downregulation of NF-κB–mediated cytokine production and α4 integrin expression. Thus, Andro may offer a pharmacological therapy to slow disease progression in patients with small aneurysms. PMID:26483397

  1. Abdominal aortic aneurysms do not develop more aggressively among patients with a positive family history of the disease

    DEFF Research Database (Denmark)

    Mejnert Jørgensen, Trine; Wemmelund, Holger; Green, Anders

    Title: Abdominal aortic aneurysms no not develop more aggressively among patients with a positive family history of the disease Authors: Trine M. M. Joergensen, Holger Wemmelund, Anders Green, Jes Lindholt, Kim Houlind. Introduction: It is well known, that a family history of abdominal aortic...... aneurysm (AAA) strongly increases the risk of developing AAA, but it is still uncertain whether familial AAA’s develops differently than non-familial AAA’s. Objectives: To investigate whether familial AAA’s develop more aggressively than non-familial AAA’s by looking at growth rate, risk of surgery...... and rupture, as well as the size of the aneurysm at the time of diagnosis and the patient´s age at the time of operation, rupture and diagnosis. Design: Observational retrospective longitudinal study Materials: 318 patients (273 men and 45 women) with AAA diagnosed between 1996-2008 in Jutland, Denmark...

  2. Multifactorial dyspahgia complicated by esophago-bronchial fistula

    Directory of Open Access Journals (Sweden)

    Sebastian Julie

    2007-01-01

    Full Text Available Dysphagia in an elderly patient necessitates urgent clinical evaluation to exclude the possibility of an underlying esophageal malignancy. Atherosclerotic aortic aneurysms are common in old age, but dysphagia aortica resulting from compression of the esophagus by an aortic aneurysm is a rare cause for dysphagia. Development of a malignant esophago-airway fistula can occur from a variety of tumors, the most common of which is esophageal cancer. A case of longstanding dysphagia resulting from dysphagia aortica later developing an esophageal malignancy complicated by esophago-bronchial fistula is outlined in this unique case report.

  3. Enhanced caspase activity contributes to aortic wall remodeling and early aneurysm development in a murine model of Marfan syndrome.

    Science.gov (United States)

    Emrich, Fabian C; Okamura, Homare; Dalal, Alex R; Penov, Kiril; Merk, Denis R; Raaz, Uwe; Hennigs, Jan K; Chin, Jocelyn T; Miller, Miquell O; Pedroza, Albert J; Craig, Juliana K; Koyano, Tiffany K; Blankenberg, Francis G; Connolly, Andrew J; Mohr, Friedrich W; Alvira, Cristina M; Rabinovitch, Marlene; Fischbein, Michael P

    2015-01-01

    Rupture and dissection of aortic root aneurysms remain the leading causes of death in patients with the Marfan syndrome, a hereditary connective tissue disorder that affects 1 in 5000 individuals worldwide. In the present study, we use a Marfan mouse model (Fbn1(C1039G/+)) to investigate the biological importance of apoptosis during aneurysm development in Marfan syndrome. Using in vivo single-photon emission computed tomographic-imaging and ex vivo autoradiography for Tc99m-annexin, we discovered increased apoptosis in the Fbn1(C1039G/+) ascending aorta during early aneurysm development peaking at 4 weeks. Immunofluorescence colocalization studies identified smooth muscle cells (SMCs) as the apoptotic cell population. As biological proof of concept that early aortic wall apoptosis plays a role in aneurysm development in Marfan syndrome, Fbn1(C1039G/+) mice were treated daily from 2 to 6 weeks with either (1) a pan-caspase inhibitor, Q-VD-OPh (20 mg/kg), or (2) vehicle control intraperitoneally. Q-VD-OPh treatment led to a significant reduction in aneurysm size and decreased extracellular matrix degradation in the aortic wall compared with control mice. In vitro studies using Fbn1(C1039G/+) ascending SMCs showed that apoptotic SMCs have increased elastolytic potential compared with viable cells, mostly because of caspase activity. Moreover, in vitro (1) cell membrane isolation, (2) immunofluorescence staining, and (3) scanning electron microscopy studies illustrate that caspases are expressed on the exterior cell surface of apoptotic SMCs. Caspase inhibition attenuates aneurysm development in an Fbn1(C1039G/+) Marfan mouse model. Mechanistically, during apoptosis, caspases are expressed on the cell surface of SMCs and likely contribute to elastin degradation and aneurysm development in Marfan syndrome. © 2014 American Heart Association, Inc.

  4. Abdominal ultrasound-scanning versus non-contrast computed tomography as screening method for abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Liisberg, Mads; Diederichsen, Axel C.; Lindholt, Jes S.

    2017-01-01

    Background: Validating non-contrast-enhanced computed tomography (nCT) compared to ultrasound sonography (US) as screening method for abdominal aortic aneurysm (AAA) screening. Methods: Consecutively attending men (n = 566) from the pilot study of the randomized Danish CardioVascular Screening......CT seems superior to US concerning sensitivity, and is able to detect aneurysmal lesions not detectable with US. Finally, the prevalence of AAA in Denmark seems to remain relatively high, in this small pilot study group....

  5. Hybrid aortic repair with antegrade supra-aortic and renovisceral debranching from ascending aorta.

    Science.gov (United States)

    Del Castro-Madrazo, José Antonio; Rivas-Domínguez, Margarita; Fernández-Prendes, Carlota; Zanabili Al-Sibbai, Amer; Llaneza-Coto, José Manuel; Alonso-Pérez, Manuel

    2017-05-01

    Aortic dissection is a life threatening condition. Hybrid repair has been described for the treatment of complex aortic pathology such as thoracoabdominal aortic aneurysms (TAAA) and type A and B dissections, although open and total endovascular repair are also possible. Open surgery is still associated with substantial perioperative morbi-mortality rates, thus less invasive techniques such as endovascular repair and hybrid procedures can achieve good results in centers with experience. We present the case of a patient with a chronic type B dissection and TAAA degeneration that was treated in a single stage hybrid procedure with antegrade supra-aortic and renovisceral debranching from the ascending aorta and TEVAR. At three-year follow up, the patient is free of intervention-related complications.

  6. An anatomic risk model to screen post endovascular aneurysm repair patients for aneurysm sac enlargement.

    Science.gov (United States)

    Png, Chien Yi M; Tadros, Rami O; Beckerman, William E; Han, Daniel K; Tardiff, Melissa L; Torres, Marielle R; Marin, Michael L; Faries, Peter L

    2017-09-01

    Follow-up computed tomography angiography (CTA) scans add considerable postimplantation costs to endovascular aneurysm repairs (EVARs) of abdominal aortic aneurysms (AAAs). By building a risk model, we hope to identify patients at low risk for aneurysm sac enlargement to minimize unnecessary CTAs. 895 consecutive patients who underwent EVAR for AAA were reviewed, of which 556 met inclusion criteria. A Probit model was created for aneurysm sac enlargement, with preoperative aneurysm morphology, patient demographics, and operative details as variables. Our final model included 287 patients and had a sensitivity of 100%, a specificity of 68.9%, and an accuracy of 70.4%. Ninety-nine (35%) of patients were assigned to the high-risk group, whereas 188 (65%) of patients were assigned to the low-risk group. Notably, regarding anatomic variables, our model reported that age, pulmonary comorbidities, aortic neck diameter, iliac artery length, and aneurysms were independent predictors of post-EVAR sac enlargement. With the exception of age, all statistically significant variables were qualitatively supported by prior literature. With regards to secondary outcomes, the high-risk group had significantly higher proportions of AAA-related deaths (5.1% versus 1.1%, P = 0.037) and Type 1 endoleaks (9.1% versus 3.2%, P = 0.033). Our model is a decent predictor of patients at low risk for post AAA EVAR aneurysm sac enlargement and associated complications. With additional validation and refinement, it could be applied to practices to cut down on the overall need for postimplantation CTA. Copyright © 2017 Elsevier Inc. All rights reserved.

  7. Randomized double-blind controlled trial of roxithromycin for prevention of abdominal aortic aneurysm expansion

    DEFF Research Database (Denmark)

    Vammen, Sten; Lindholt, Jes Sanddal; Ostergaard, L

    2001-01-01

    Macrolide treatment has been reported to lower the risk of recurrent ischaemic heart disease. The influence of macrolides on the expansion rate of abdominal aortic aneurysms (AAAs) remains unknown. The aim was to investigate the effect of roxithromycin on the expansion rate of small AAAs....

  8. Duodenal Obstruction after Elective Abdominal Aortic Aneurysm Repair: A Case Report

    Directory of Open Access Journals (Sweden)

    Chun-Yao Lin

    2004-10-01

    Full Text Available Gastrointestinal tract complications after abdominal aortic aneurysm (AAA repair are well known. The reported frequency ranges from 6.6% to 21%. However, the incidence of duodenal obstruction following AAA has probably been underestimated. This report concerns a 78-year-old male who was admitted for elective repair of an infrarenal AAA. On the ninth postoperative day, the patient presented with large quantities of bile-stained vomitus despite passing flatus per rectum. Metoclopramide and ranitidine were given under the initial impression of paralytic ileus. However, the upper gastrointestinal obstruction persisted, and on day 12, computerized tomography (CT revealed marked distension of the gastric tube and duodenum, down to the level of the third portion, with abrupt change of caliber at the point of the superior mesenteric artery (SMA. SMA syndrome was diagnosed. After nasogastric tube aspiration, parenteral nutrition, and 11 days of conservative treatment, abdominal CT and upper gastrointestinal series showed no apparent duodenal obstruction. The patient was discharged on the 29th postoperative day; follow-up abdominal CT 4 months later was unremarkable.

  9. Bio-chemo-mechanics of thoracic aortic aneurysms.

    Science.gov (United States)

    Wagenseil, Jessica E

    2018-03-01

    Most thoracic aortic aneurysms (TAAs) occur in the ascending aorta. This review focuses on the unique bio-chemo-mechanical environment that makes the ascending aorta susceptible to TAA. The environment includes solid mechanics, fluid mechanics, cell phenotype, and extracellular matrix composition. Advances in solid mechanics include quantification of biaxial deformation and complex failure behavior of the TAA wall. Advances in fluid mechanics include imaging and modeling of hemodynamics that may lead to TAA formation. For cell phenotype, studies demonstrate changes in cell contractility that may serve to sense mechanical changes and transduce chemical signals. Studies on matrix defects highlight the multi-factorial nature of the disease. We conclude that future work should integrate the effects of bio-chemo-mechanical factors for improved TAA treatment.

  10. Echocardiographic diagnosis of rare pathological patterns of sinus of Valsalva aneurysm.

    Directory of Open Access Journals (Sweden)

    Yali Yang

    Full Text Available To evaluate the value and improve the diagnostic accuracy of echocardiography in the diagnosis of a sinus of Valsalva aneurysm (SVA with rare pathological patterns.Echocardiographic features and surgical findings from 270 Chinese patients with SVA treated in the last 18 years (1995-2013 at the Union Hospital were compared retrospectively; 22 of 270 cases had rare patterns.The patients with SVA, a rare origin, a rare extending position, or a rare course accounted for 3.4%, 7.4%, and 0.4% of the 270 cases, respectively. The three most common aneurysmal complications of the patients with rare patterns were severe aortic regurgitation (16, obstruction of the ventricular outflow tract or valvular orifice (3, and conduction disturbance (3. The origin, course, extending position and rupture status of the SVAs determined by echocardiography were entirely consistent with surgical findings in 81.8% of the 22 cases. With the exception of one failed diagnosis of an aneurysmal wall dissection and one misdiagnosis of a descending aortic dissection, the echocardiographic results of SVA complications and associated cardiovascular lesions were also confirmed.We could accurately diagnose SVAs with rare pathological patterns by echocardiographic identification of distinguishing features. However, for several conditions, we could not accurately identify the origin or course of the aneurysm or define its relationship to adjacent structures using conventional echocardiography alone. Therefore, we recommend combining conventional echocardiography with different imaging techniques, such as transesophageal echocardiography, three-dimensional echocardiography, computed tomography angiography, and aortic angiography.

  11. Endo-luminal grafting for treatment of abdominal aortic aneurysms

    International Nuclear Information System (INIS)

    Fu Weiguo; Wang Yuqi; Chen Fuzhen; Ye Jianrong; Wang Jianhua; Yan Zhiping; Cheng Jiemin

    2000-01-01

    Objective: To evaluate the preliminary clinical results of endovascular procedures for abdominal aortic aneurysms (AAA) in a prospective study. Methods: Six patients (average age 70 years, range 56 to 78) with infrarenal AAA were enrolled in Shanghai Zhongshan hospital from February 1998 to February 1999. Computed tomography and angiography were done in every patient for measurement of the length, diameter, and angulation of the proximal and distal AAA necks, aneurysm sac, and common and external iliac arteries. The average diameter of the aneurysm was 6.3 cm (range 4.6 cm to 8.0 cm). The mean proximal neck diameter was 2.0 cm (range 1.8 cm to 2.2 cm) and proximal neck length was 3.0 cm (range 2.5 cm to 3.5 cm). All patients were treated with the endo-luminal grafting for exclusion of AAA. Results: Two tubular and 4 bifurcated endo-grafts were used. All endo-graft procedures were completed successfully. One patient died of renal failure 72 hours after the procedure because of the prolonged operative time and excessive contrast medium. Aortography after the procedure showed the AAA were excluded by endo-graft and no endo-leak in the proximal or distal connections was detected. The patients could take meal and were ambulatory on the first and second postoperative day, respectively. Clinical success (aneurysm exclusion with no death or endo-leak) at 30 days was 83.3%. In the 24 months follow-up in 5 cases, no migration, endo-leak, and increasing aneurysm size were detected with spiral CT or color Duplex ultrasound. Conclusion: Based on initial results and a short term mean follow-up period of 24 months, the endovascular treatment of AAA with stent-graft system is feasible and safe. Further study will be required to observe the long term result in the exclusion of AAA

  12. Multidirectional flow analysis by cardiovascular magnetic resonance in aneurysm development following repair of aortic coarctation

    Directory of Open Access Journals (Sweden)

    Stalder Aurelien F

    2008-06-01

    Full Text Available Abstract Aneurysm formation is a life-threatening complication after operative therapy in coarctation. The identification of patients at risk for the development of such secondary pathologies is of high interest and requires a detailed understanding of the link between vascular malformation and altered hemodynamics. The routine morphometric follow-up by magnetic resonance angiography is a well-established technique. However, the intrinsic sensitivity of magnetic resonance (MR towards motion offers the possibility to additionally investigate hemodynamic consequences of morphological changes of the aorta. We demonstrate two cases of aneurysm formation 13 and 35 years after coarctation surgery based on a Waldhausen repair with a subclavian patch and a Vosschulte repair with a Dacron patch, respectively. Comprehensive flow visualization by cardiovascular MR (CMR was performed using a flow-sensitive, 3-dimensional, and 3-directional time-resolved gradient echo sequence at 3T. Subsequent analysis included the calculation of a phase contrast MR angiography and color-coded streamline and particle trace 3D visualization. Additional quantitative evaluation provided regional physiological information on blood flow and derived vessel wall parameters such as wall shear stress and oscillatory shear index. The results highlight the individual 3D blood-flow patterns associated with the different vascular pathologies following repair of aortic coarctation. In addition to known factors predisposing for aneurysm formation after surgical repair of coarctation these findings indicate the importance of flow sensitive CMR to follow up hemodynamic changes with respect to the development of vascular disease.

  13. Genetic variants in FBN-1 and risk for thoracic aortic aneurysm and dissection.

    Science.gov (United States)

    Iakoubova, Olga A; Tong, Carmen H; Rowland, Charles M; Luke, May M; Garcia, Veronica E; Catanese, Joseph J; Moomiaie, Remo M; Sotonyi, Peter; Ascady, Gyorgy; Nikas, Demitrios; Dedelias, Panagiotis; Tranquilli, Maryann; Elefteriades, John A

    2014-01-01

    A recent genome wide association study (GWAS) by LeMaire et al. found that two single nucleotide polymorphisms (SNPs), rs2118181 and rs10519177 in the FBN-1 gene (encoding Fibrillin-1), were associated with thoracic aortic dissection (TAD), non-dissecting thoracic aortic aneurysm (TAA), and thoracic aortic aneurysm or dissection (TAAD); the largest effect was observed for the association of rs2118181 with TAD. We investigated whether rs2118181 and rs10519177 were associated with TAD, TAA, and TAAD in the Yale study. The genotypes of rs2118181 and rs10519177 were determined for participants in the Yale study: 637 TAAD cases (140 TAD, 497 TAA) and 275 controls from the United States, Hungary, and Greece. The association of the genotypes with TAD, TAA and TAAD were assessed using logistic regression models adjusted for sex, age, study center and hypertension. In the Yale study, rs2118181 was associated with TAD: compared with non-carriers, carriers of the risk allele had an unadjusted odds ratio for TAD of 1.80 (95% CI 1.15-2.80) and they had odds ratio for TAD of 1.87 (95% CI 1.09-3.20) after adjusting for sex, age, study center and hypertension. We did not find significant differences in aortic size, a potential confounder for TAD, between rs2118181 risk variant carriers and non-carriers: mean aortic size was 5.56 (95% CI: 5.37-5.73) for risk variant carriers (CC+CT) and was 5.48 (95% CI: 5.36-5.61) for noncarriers (TT) (p = 0.56). rs2118181 was not associated with TAA or TAAD. rs10519177 was not associated with TAD, TAA, or TAAD in the Yale study. Thus, the Yale study provided further support for the association of the FBN-1 rs2118181SNP with TAD.

  14. DOMINANCE OF CORONARY ARTERY DISEASE AMONG PATIENTS WITH ANEURYSM OF ABDOMINAL AORTA

    Directory of Open Access Journals (Sweden)

    Maja Zdravkovic

    2007-12-01

    Full Text Available Persons with aneurysm of the abdominal aorta have high prevalence of risk factors of cardiovascular disease. It cannot be stated with certainty whether these persons die in a large number due to the existence of risk factors or the genesis and complications of aneurysm itself. In patients with aneurysm of the abdominal aorta, there is a high correlation with the coronary artery disease; therefore, the aim of the study was to prove whether or not this is the case. The patients in preparation for the resection of the abdominal aorta aneurysm at the Institute of Cardiovascular Disease underwent the examination. The study included 377 examinees, of whom 341 males and 36 females, aged 45 to 83 years, during the three-year interval (from 2004 to 2006. The aim of the study was to determine the dominance of the coronary artery disease among the patients with aneurysm of the abdominal aorta. In the process of analyzing the data obtained from patients and medical evidence, it was found out that a large number of the abdominal aortic aneurysm patients were at the same time the coronary artery disease patients (55,2%; Hi=15,04; p80 kg was larger, as well as the percentage of patients with hypertension (89% and increased levels of cholesterol and triglycerides (67%. There was a great number of those with the inherited factor (40%. It has been proven that the risk factors for the development of coronary artery disease are in direct association with the risk factors for the abdominal aortic aneurysm. Also, there is a great predominance of the coronary artery disease among the patients with aneurysm of the abdominal aorta. The coronary artery disease is one of the main risk factors. If we managed to prevent the appearance of this disease or achieve the timely diagnosing of it and eventual curing, we would be able to decrease the development of the abdominal aortic aneurysm well as the consequences and further complications.

  15. Endovascular Treatment of Ruptured Abdominal Aortic Aneurysm with Aortocaval Fistula

    International Nuclear Information System (INIS)

    Guzzardi, Giuseppe; Fossaceca, Rita; Divenuto, Ignazio; Musiani, Antonello; Brustia, Piero; Carriero, Alessandro

    2010-01-01

    Aortocaval fistula (ACF) is a rare complication of abdominal aortic aneurysm (AAA). We report the endovascular repair of an AAA rupture into the inferior vena cava. A 78-year-old woman was admitted to our hospital for acute hypotension. She presented with a pulsatile abdominal mass and became rapidly anuric. Abdominal computed tomography (CT) showed an AAA rupture into the inferior vena cava. The features of the AAA made it suitable for endovascular repair. To prevent pulmonary embolism caused by the presence of sac thrombosis near the vena cava lumen, a temporary vena cava filter was deployed before the procedure. A bifurcated stent-graft was placed with the patient under local anaesthesia, and the AAA was successfully treated. A transient type II endoleak was detected on CT 3 days after endograft placement. At routine follow-up 6 and 12 months after the procedure, the patient was in good clinical condition, and the type II endoleak had sealed completely. Endovascular treatment offers an attractive therapeutic alternative to open repair in case of ACF; however, only small numbers of patients have been treated, and long-term follow-up interval is lacking.

  16. Office-based ultrasound screening for abdominal aortic aneurysm.

    Science.gov (United States)

    Blois, Beau

    2012-03-01

    To assess the efficacy of an office-based, family physician–administered ultrasound examination to screen for abdominal aortic aneurysm (AAA). A prospective observational study. Consecutive patients were approached by nonphysician staff. Rural family physician offices in Grand Forks and Revelstoke, BC. The Canadian Society for Vascular Surgery screening recommendations for AAA were used to help select patients who were at risk of AAA. All men 65 years of age or older were included. Women 65 years of age or older were included if they were current smokers or had diabetes, hypertension, a history of coronary artery disease, or a family history of AAA. A focused “quick screen”, which measured the maximal diameter of the abdominal aorta using point-of-care ultrasound technology, was performed in the office by a resident physician trained in emergency ultrasonography. Each patient was then booked for a criterion standard scan (i.e., a conventional abdominal ultrasound scan performed by a technician and interpreted by a radiologist). The maximal abdominal aortic diameter measured by ultrasound in the office was compared with that measured by the criterion standard method. The time to screen each patient was recorded. Forty-five patients were included in data analysis; 62% of participants were men. The mean age was 73 years. The mean pairwise difference between the office-based ultrasound scan and the criterion standard scan was not statistically significant. The mean absolute difference between the 2 scans was 0.20 cm (95% CI 0.15 to 0.25 cm). Correlation between the scans was 0.81. The office-based ultrasound scan had both a sensitivity and a specificity of 100%. The mean time to screen each patient was 212 seconds (95% CI 194 to 230 seconds). Abdominal aortic aneurysm screening can be safely performed in the office by family physicians who are trained to use point-of- care ultrasound technology. The screening test can be completed within the time constraints of a

  17. Plasma cytokine levels and risks of abdominal aortic aneurysms

    DEFF Research Database (Denmark)

    Liao, Mengyang; Liu, Cong-Lin; Lv, Bing-Jie

    2015-01-01

    BACKGROUND: Abdominal aortic aneurysm (AAA) is characterized by inflammatory cell accumulation in AAA lesions that produce inflammatory cytokines and advance its pathogenesis. Peripheral cytokines may predict the degree or risk of AAA. METHODS AND RESULTS: ELISA determined plasma interleukin-6 (IL6......), IL10, IL17A, IFN-γ, and C-reactive protein (CRP) from 476 AAA patients and 200 controls. AAA patients had lower IL6, IFN-γ, IL10, IL17A, and higher CRP than controls. IL10 correlated positively with IFN-γ, IL17A, or IL6, but not CRP in control or AAA populations. IL10 associated negatively...... with systolic blood pressure, whereas CRP associated positively with diastolic blood pressure and body mass index. CRP was an independent AAA risk factor and correlated positively with aortic diameters before and after adjustments for other risk factors. IFN-γ, IL17A, and CRP correlated positively with cross...

  18. Monocyte chemoattractant protein-1 (MCP-1 regulates macrophage cytotoxicity in abdominal aortic aneurysm.

    Directory of Open Access Journals (Sweden)

    Qiwei Wang

    Full Text Available AIMS: In abdominal aortic aneurysm (AAA, macrophages are detected in the proximity of aortic smooth muscle cells (SMCs. We have previously demonstrated in a murine model of AAA that apoptotic SMCs attract monocytes and other leukocytes by producing MCP-1. Here we tested whether infiltrating macrophages also directly contribute to SMC apoptosis. METHODS AND RESULTS: Using a SMC/RAW264.7 macrophage co-culture system, we demonstrated that MCP-1-primed RAWs caused a significantly higher level of apoptosis in SMCs as compared to control macrophages. Next, we detected an enhanced Fas ligand (FasL mRNA level and membrane FasL protein expression in MCP-1-primed RAWs. Neutralizing FasL blocked SMC apoptosis in the co-culture. In situ proximity ligation assay showed that SMCs exposed to primed macrophages contained higher levels of receptor interacting protein-1 (RIP1/Caspase 8 containing cell death complexes. Silencing RIP1 conferred apoptosis resistance to SMCs. In the mouse elastase injury model of aneurysm, aneurysm induction increased the level of RIP1/Caspase 8 containing complexes in medial SMCs. Moreover, TUNEL-positive SMCs in aneurysmal tissues were frequently surrounded by CD68(+/FasL(+ macrophages. Conversely, elastase-treated arteries from MCP-1 knockout mice display a reduction of both macrophage infiltration and FasL expression, which was accompanied by diminished apoptosis of SMCs. CONCLUSION: Our data suggest that MCP-1-primed macrophages are more cytotoxic. MCP-1 appears to modulate macrophage cytotoxicity by increasing the level of membrane bound FasL. Thus, we showed that MCP-1-primed macrophages kill SMCs through a FasL/Fas-Caspase8-RIP1 mediated mechanism.

  19. Suprarenal fixation barbs can induce renal artery occlusion in endovascular aortic aneurysm repair.

    Science.gov (United States)

    Subedi, Shree K; Lee, Andy M; Landis, Gregg S

    2010-01-01

    Renal artery occlusion following endovascular abdominal aortic aneurysm repair with suprarenal fixation is uncommon. We report one patient who was found to develop renal artery occlusion and parenchymal infarction 6 months after repair using an endovascular graft with suprarenal fixation. Our patient underwent emergent endovascular repair of a symptomatic 6 cm abdominal aortic aneurysm. The covered portion of the endograft was inadvertently deployed well below the renal artery orifices. At the completion of the procedure both renal arteries were confirmed to be patent. One month postoperatively, a computed tomographic (CT) scan showed exclusion of the aortic sac and normal enhancement of both kidneys. At 6 months, the patient was found to have elevated serum creatinine levels despite having no clinical symptoms. CT scanning revealed a nonenhancing left kidney, and angiography demonstrated an occlusion of the left renal artery. A barb welded to the bare metal stent appeared to be impinging on the renal artery. We believe that renal artery occlusion after endovascular repair can occur due to repetitive injury to the renal artery orifice from barbs welded to the bare metal stent. To our knowledge, this is the first reported case of renal artery occlusion caused by repetitive injury from transrenal fixation systems. Copyright 2010 Annals of Vascular Surgery Inc. Published by Elsevier Inc. All rights reserved.

  20. Outcomes of Endovascular Abdominal Aortic Aneurysm Repair in Patients with Hostile Neck Anatomy

    International Nuclear Information System (INIS)

    Choke, Edward; Munneke, Graham; Morgan, Robert; Belli, Anna-Maria; Loftus, Ian; McFarland, Robert; Loosemore, Thomas; Thompson, Matthew M.

    2006-01-01

    Purpose. The principal anatomic contraindication to endovascular aneurysm repair (EVR) is an unfavorable proximal aortic neck. With increasing experience, a greater proportion of patients with unfavorable neck anatomy are being offered EVR. This study aimed to evaluate outcomes in patients with challenging proximal aortic neck anatomy. Methods. Prospectively collected data from 147 consecutive patients who underwent EVR between December 1997 and April 2005 were supplemented with a retrospective review of medical records and radiological images. Unfavorable anatomic features were defined as neck diameter >28 mm, angulation >60 deg., circumferential thrombus >50%, and length 30 days) (p = 0.57), distal type I endoleak (p = 0.40), type III endoleak (p 0.51), secondary interventions (p = 1.0), aneurysm sac expansion (p = 0.44), or 30 day mortality (p = 0.70). The good neck group had a significantly increased incidence of type II endoleak (p = 0.023). By multivariate analysis, the incidence of intraoperative adjunctive procedures was significantly increased in the presence of severe angulation (p = 0.041, OR 3.08, 95% CI 1.05-9.04). Conclusion. Patients with severely hostile proximal aortic neck anatomy may be treated with EVR, although severely angulated necks require additional intraoperative procedures. Early outcomes are encouraging and suggest that indications for EVR may be expanded to include patients with hostile neck anatomy

  1. Correlation between intrasac pressure measurements of a pressure sensor and an angiographic catheter during endovascular repair of abdominal aortic aneurysm

    Directory of Open Access Journals (Sweden)

    Pierre Galvagni Silveira

    2008-01-01

    Full Text Available PURPOSE: To establish a correlation between intrasac pressure measurements of a pressure sensor and an angiographic catheter placed in the same aneurysm sac before and after its exclusion by an endoprosthesis. METHODS: Patients who underwent endovascular abdominal aortic aneurysm repair and received an EndoSureTM wireless pressure sensor implant between March 19 and December 11, 2004 were enrolled in the study. Simultaneous readings of systolic, diastolic, mean, and pulse pressure within the aneurysm sac were obtained from the catheter and the sensor, both before and after sac exclusion by the endoprosthesis (Readings 1 and 2, respectively. Intrasac pressure measurements were compared using Pearson's correlation and Student's t test. Statistical significance was set at p0.05, mean (p>0.05, and pulse (p0.05 by the sensor. CONCLUSION: The excellent agreement between intrasac pressure readings recorded by the catheter and the sensor justifies use of the latter for detection of post-exclusion abdominal aortic aneurysm pressurization.

  2. [Aneurysm of the ascending aorta, hyperthyroidism and pregnancy. Case report].

    Science.gov (United States)

    Zavala-Barrios, Berenice; García-Castanedo, Carla; Viruez-Soto, José Antonio; Briones-Garduño, Jesús Carlos; Coronel-Cruz, Fausto

    2015-10-01

    Aortic aneurysms are a rare condition in childhood and youth, etiology, evolution, natural progression and prognosis in pregnancy unknown. Hyperthyroidism occurs when there is a synthesis and/or excessive secretion of thyroid hormones during pregnancy poses difficulty for diagnosis. The new monitoring hemodynamics in pregnancy by transthoracic bioimpedance is a feasible alternative, noninvasive and real-time hemodynamic monitoring pregnant women. Primiparity 18, is referred to present tachycardia, hyperthyroidism is diagnosed and drug treatment is initiated with antithyroid from week 14.1 echocardiogram reports bivalve aortic aneurysm in the sinus of Valsalva is performed. He was determined to continue the same under strict hemodynamic and fetal monitoring. Pregnancy concludes at the end obtained through the abdomen, at 40.4 weeks, with male product, weight 2250 g, Apgar 9/9, with growth restriction type I. The mother and baby were discharged simultaneously without complications. The hyperdynamic state of pregnant patients in hyperthyroidism and aneurysms is complex and potentially complicable is why the hemodynamic patient monitoring is essential to detect changes in it that endanger the life of the binomial to this condition. Heart disease and hyperthyroidism, in this case, consistent with a fetal complications level is described as intrauterine growth restriction, however narrow and multidisciplinary monitoring and timely interventions binomial lead to satisfactory results in this case.

  3. Vascular dysfunctions in the isolated aorta of double-transgenic hypertensive mice developing aortic aneurysm

    DEFF Research Database (Denmark)

    Waeckel, L.; Badier-Commander, C.; Damery, T.

    2015-01-01

    Angiotensin-II and oxidative stress are involved in the genesis of aortic aneurysms, a phenomenon exacerbated by endothelial nitric oxide synthase (eNOS) deletion or uncoupling. The purpose of this work was to study the endothelial function in wild-type C57BL/6 (BL) and transgenic mice expressing...

  4. A prospective clinical, economic, and quality-of-life analysis comparing endovascular aneurysm repair (EVAR), open repair, and best medical treatment in high-risk patients with abdominal aortic aneurysms suitable for EVAR: the Irish patient trial.

    LENUS (Irish Health Repository)

    Hynes, Niamh

    2007-12-01

    To report the results of a trial comparing endovascular aneurysm repair (EVAR) to open repair (OR) and best medical therapy (BMT) involving high-risk patients with abdominal aortic aneurysms (AAA) suitable for EVAR.

  5. Statin use is associated with reduced all-cause mortality after endovascular abdominal aortic aneurysm repair.

    NARCIS (Netherlands)

    Leurs, L.J.; Visser, P.; Laheij, R.J.F.; Buth, J.; Harris, P.L.; Blankensteijn, J.D.

    2006-01-01

    It has been shown that preoperative statin therapy reduces all-cause and cardiovascular mortality in patients undergoing major noncardiac vascular surgery. In this report, we investigated the influence of statin use on early and late outcome following endovascular abdominal aortic aneurysm repair

  6. Long-Term Risk for Aortic Complications After Aortic Valve Replacement in Patients With Bicuspid Aortic Valve Versus Marfan Syndrome.

    Science.gov (United States)

    Itagaki, Shinobu; Chikwe, Joanna P; Chiang, Yuting P; Egorova, Natalia N; Adams, David H

    2015-06-09

    Bicuspid aortic valves are associated with valve dysfunction, ascending aortic aneurysm and dissection. Management of the ascending aorta at the time of aortic valve replacement (AVR) in these patients is controversial and has been extrapolated from experience with Marfan syndrome, despite the absence of comparative long-term outcome data. This study sought to assess whether the natural history of thoracic aortopathy after AVR in patients with bicuspid aortic valve disease is substantially different from that seen in patients with Marfan syndrome. In this retrospective comparison, outcomes of 13,205 adults (2,079 with bicuspid aortic valves, 73 with Marfan syndrome, and 11,053 control patients with acquired aortic valve disease) who underwent primary AVR without replacement of the ascending aorta in New York State between 1995 and 2010 were compared. The median follow-up time was 6.6 years. The long-term incidence of thoracic aortic dissection was significantly higher in patients with Marfan syndrome (5.5 ± 2.7%) compared with those with bicuspid valves (0.55 ± 0.21%) and control group patients (0.41 ± 0.08%, p Marfan syndrome (10.8 ± 4.4%) compared with those with bicuspid valves (4.8 ± 0.8%) and control group patients (1.4 ± 0.2%) (p Marfan syndrome were significantly more likely to undergo thoracic aortic surgery in late follow-up (10.4 ± 4.3%) compared with those with bicuspid valves (2.5 ± 0.6%) and control group patients (0.50 ± 0.09%) (p Marfan syndrome compared with those with bicuspid aortic valves confirm that operative management of patients with bicuspid aortic valves should not be extrapolated from Marfan syndrome and support discrete treatment algorithms for these different clinical entities. Copyright © 2015 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

  7. A two-system, single-analysis, fluid-structure interaction technique for modelling abdominal aortic aneurysms.

    Science.gov (United States)

    Kelly, S C; O'Rourke, M J

    2010-01-01

    This work reports on the implementation and validation of a two-system, single-analysis, fluid-structure interaction (FSI) technique that uses the finite volume (FV) method for performing simulations on abdominal aortic aneurysm (AAA) geometries. This FSI technique, which was implemented in OpenFOAM, included fluid and solid mesh motion and incorporated a non-linear material model to represent AAA tissue. Fully implicit coupling was implemented, ensuring that both the fluid and solid domains reached convergence within each time step. The fluid and solid parts of the FSI code were validated independently through comparison with experimental data, before performing a complete FSI simulation on an idealized AAA geometry. Results from the FSI simulation showed that a vortex formed at the proximal end of the aneurysm during systolic acceleration, and moved towards the distal end of the aneurysm during diastole. Wall shear stress (WSS) values were found to peak at both the proximal and distal ends of the aneurysm and remain low along the centre of the aneurysm. The maximum von Mises stress in the aneurysm wall was found to be 408kPa, and this occurred at the proximal end of the aneurysm, while the maximum displacement of 2.31 mm occurred in the centre of the aneurysm. These results were found to be consistent with results from other FSI studies in the literature.

  8. Elevated expression levels of lysyl oxidases protect against aortic aneurysm progression in Marfan syndrome.

    Science.gov (United States)

    Busnadiego, O; Gorbenko Del Blanco, D; González-Santamaría, J; Habashi, J P; Calderon, J F; Sandoval, P; Bedja, D; Guinea-Viniegra, J; Lopez-Cabrera, M; Rosell-Garcia, T; Snabel, J M; Hanemaaijer, R; Forteza, A; Dietz, H C; Egea, G; Rodriguez-Pascual, F

    2015-08-01

    Patients with Marfan syndrome (MFS) are at high risk of life-threatening aortic dissections. The condition is caused by mutations in the gene encoding fibrillin-1, an essential component in the formation of elastic fibers. While experimental findings in animal models of the disease have shown the involvement of transforming growth factor-β (TGF-β)- and angiotensin II-dependent pathways, alterations in the vascular extracellular matrix (ECM) may also play a role in the onset and progression of the aortic disease. Lysyl oxidases (LOX) are extracellular enzymes, which initiates the formation of covalent cross-linking of collagens and elastin, thereby contributing to the maturation of the ECM. Here we have explored the role of LOX in the formation of aortic aneurysms in MFS. We show that aortic tissue from MFS patients and MFS mouse model (Fbn1(C1039G/+)) displayed enhanced expression of the members of the LOX family, LOX and LOX-like 1 (LOXL1), and this is associated with the formation of mature collagen fibers. Administration of a LOX inhibitor for 8weeks blocked collagen accumulation and aggravated elastic fiber impairment, and these effects correlated with the induction of a strong and rapidly progressing aortic dilatation, and with premature death in the more severe MFS mouse model, Fbn1(mgR/mgR), without any significant effect on wild type animals. This detrimental effect occurred preferentially in the ascending portion of the aorta, with little or no involvement of the aortic root, and was associated to an overactivation of both canonical and non-canonical TGF-β signaling pathways. The blockade of angiotensin II type I receptor with losartan restored TGF-β signaling activation, normalized elastic fiber impairment and prevented the aortic dilatation induced by LOX inhibition in Fbn1(C1039G/+) mice. Our data indicate that LOX enzymes and LOX-mediated collagen accumulation play a critical protective role in aneurysm formation in MFS. Copyright © 2015 Elsevier

  9. Hybrid Endovascular Aortic Aneurysm Repair: Preservation of Pelvic Perfusion with External to Internal Iliac Artery Bypass.

    Science.gov (United States)

    Mansukhani, Neel A; Havelka, George E; Helenowski, Irene B; Rodriguez, Heron E; Hoel, Andrew W; Eskandari, Mark K

    2017-07-01

    Diminished pelvic arterial flow as a result of intentional coverage/embolization of internal iliac arteries (IIA) during isolated endovascular common iliac artery aneurysm (CIAA) repair or endovascular repair of abdominal aortic aneurysms (EVAR) may result in symptomatic pelvic ischemia. Although generally well tolerated, in severe cases, pelvic ischemia may manifest as recalcitrant buttock claudication, vasculogenic impotence, or perineal, vesicle, rectal, and/or spinal cord ischemia. Branched graft technology has recently become available; however, many patients are not candidates for endovascular repair with these devices. Therefore, techniques to preserve pelvic arterial flow are needed. We reviewed our outcomes of isolated endovascular CIAA repair or EVAR in conjunction with unilateral external-internal iliac artery bypass. Single-center, retrospective review of 10 consecutive patients who underwent hybrid endovascular abdominal aortic aneurysm (AAA) or CIAA repair with concomitant external-internal iliac artery bypass between 2006 and 2015. Demographics, index procedural details, postoperative symptoms, hospital length of stay (LOS), follow-up imaging, and bypass patency were recorded. The cohort of 10 patients was all men with a mean age of 71 years (range: 56-84). Hybrid repair consisted of contralateral IIA coil embolization followed by EVAR with external iliac artery-internal iliac artery (EIA-IIA) bypass. All EIA-IIA bypasses were performed via a standard lower quadrant retroperitoneal approach with a prosthetic bypass graft. Technical success was 100%, and there were no perioperative deaths. One patient developed transient paraplegia, 1 patient had buttock claudication on the side of his hypogastric embolization contralateral to his iliac bypass, and 1 developed postoperative impotence. 20% of patients sustained long-term complications (buttock claudication and postoperative impotence). Mean LOS was 2.8 days (range: 1-9 days). Postoperative imaging

  10. Daily diurnal variation in admissions for ruptured abdominal aortic aneurysms.

    LENUS (Irish Health Repository)

    Killeen, Shane

    2012-02-03

    BACKGROUND: Many vascular events, such as myocardial infarction and cerebrovascular accident, demonstrate a circadian pattern of presentation. Blood pressure is intimately related to these pathologies and is the one physiological variable consistently associated with abdominal aortic aneurysm rupture. It also demonstrates a diurnal variation. The purpose of this study was to determine if rupture of an abdominal aortic aneurysm (RAAA) exhibits a diurnal variation. METHODS: A retrospective cohort-based study was performed to determine the timing of presentation of RAAA to the vascular unit of Cork University Hospital over a 15-year period. Time of admission, symptom onset, and co-morbidities such as hypertension were noted. Fournier\\'s analysis and chi-squared analysis were performed. To ameliorate possible confounding factors, patients admitted with perforated peptic ulcers were examined in the same manner. RESULTS: A total of 148 cases of RAAA were identified, with a male preponderance (71.7% [124] male versus 29.3% [44] female patients) and a mean age of 74.4 +\\/- 7.2 years at presentation. 70.9% (105) were known to have hypertension, 52.2% (77) were current smokers, and 46.8% (69) were being treated for chronic obstructive airway disease (COAD). Time of symptom onset was recorded in 88.5% (131) of patients. There was a marked early morning peak in RAAA admissions, with the highest number of RAAA being admitted between 08.00 and 09.59. A second, smaller peak was observed at 14.00-15.59. These findings were suggestive of diurnal variation. [chi(2) =16.75, p < 0.003]. Some 40% (59) of patients were admitted between 00.00 and 06.00, an incidence significantly higher than for other time periods (06.00-12.00, 12.00-18.00, and 18.00-24.00) [chi(2) = 18.72; df = 3; p < 0.0003]. A significantly higher number of patients admitted between 00.00 and 06.00 were known hypertensives (chi(2) = 7.94; p < 0.05). CONCLUSIONS: The findings of this study suggest a distinct

  11. Impact of abdominal aortic aneurysm screening on quality of life

    OpenAIRE

    Bath, M. F.; Sidloff, D.; Saratzis, A.; Bown, M. J.

    2018-01-01

    Background Screening for abdominal aortic aneurysm (AAA) is known to reduce AAA‐related mortality; however, the psychological impact of population AAA screening is unclear. The aim was to assess the impact of AAA diagnosis on quality of life (QoL) using data from an established AAA screening programme. Methods Mental and physical QoL scores for men diagnosed with AAA through participation in the English and Welsh AAA screening programmes were compared with no‐AAA controls. Participants were i...

  12. JAG Tearing Technique with Radiofrequency Guide Wire for Aortic Fenestration in Thoracic Endovascular Aneurysm Repair

    International Nuclear Information System (INIS)

    Ricci, Carmelo; Ceccherini, Claudio; Leonini, Sara; Cini, Marco; Vigni, Francesco; Neri, Eugenio; Tucci, Enrico; Benvenuti, Antonio; Tommasino, Giulio; Sassi, Carlo

    2012-01-01

    An innovative approach, the JAG tearing technique, was performed during thoracic endovascular aneurysm repair in a patient with previous surgical replacement of the ascending aorta with a residual uncomplicated type B aortic dissection who developed an aneurysm of the descending thoracic aorta with its lumen divided in two parts by an intimal flap. The proximal landing zone was suitable to place a thoracic stent graft. The distal landing zone was created by cutting the intimal flap in the distal third of the descending thoracic aorta with a radiofrequency guide wire and intravascular ultrasound catheter.

  13. Epidemiology of aortic disease - aneurysm, dissection, occlusion

    International Nuclear Information System (INIS)

    Steckmeier, B.

    2001-01-01

    The physiological infrarenal aortic diameter varies between 12.4 mm in women an 27.6 mm in men. As defined, an aneurysmatic dilatation begins with 29 mm. According to that, 9% of all people above the age of 65 are affected by an abdominal aortic aneurysm (AAA). Compared with the female sex, the male sex predominates at a rate of about 5:1. The disease is predominant in men of the white race. In black men, black and white women the incidence of AAA is identical. 38 to 50 percent of the AAA patients (patients) suffer from hypertension, 33 to 60% from coronary, 28% from cerebrovascular and 25% from peripheral occlusive disease. The AAA expansion rate varies between 0.2 and 0.8 cm per year and is exponential from a diameter of 5 cm on. In autopsy studies, the rupture rates with AAA diameters of 7 cm were below 5%, 39% and 65%, respecitvely. 70% of the AAA patients do not die of a rupture, but of a cardiac disease. Serum markers, such as metalloproteinases and procollagen peptides are significantly increased in AAA patients. Thoraco-abdominal aneurysms (TAA) make up only 2 to 5% of all degenerative aneurysms. 20 to 30% of the TAA patients are also affected by an AAA. 80% of the TAA are degenerative, 15 to 20% are a consequence of the chronic dissection - including 5% of Marfan patients -, 2% occur in case of infections and 1 to 2% in case of aortitis. The TAA incidence in 100,000 person-years is 5.9% during a monitoring period of 30 years. In case of TAA, an operation is indicated with a maximum diameter of 5.5 to 6 cm and more and, in case of a Marfan's syndrome (incidence of 1:10,000), with a maximum diameter of 5.5 cm and more. With regard to aorto-iliac occlusive diseases, there are defined 3 types of distribution. Type I refers to the region of the bifurcation itself. Type II defines the diffuse aortoiliac spread of the disease. Type III designates multiple-level occlusions also beyond the inguinal ligament. Type I patients in most cases are female and more

  14. Epidemiology of abdominal aortic aneurysms in the Asian community.

    Science.gov (United States)

    Spark, J I; Baker, J L; Vowden, P; Wilkinson, D

    2001-03-01

    Studies relating to the ethnic origin of patients with an abdominal aortic aneurysm (AAA) are few and are mainly concerned with the differences between black and white Americans. The purpose of this study was to determine whether the incidence of AAA among the Asian population of Bradford is different from that in the Caucasian population. A retrospective study of patients with an AAA was carried out between 1990 and 1997 using data collected by the Patient Administrative Service, personal databases of the vascular consultants and theatre records. Information about the ethnic composition of the population of Bradford was obtained from the 1991 national census. Demographic data, including ethnic origin and clinical details, were obtained from patient notes. Two hundred and thirty-three patients with an AAA were identified during the study interval. The Asian population comprised 14.0 per cent of the total population of Bradford. Twenty-eight AAAs would be expected per year. All of the aneurysms identified occurred in the Caucasian population and none in the Asian community. These early results suggest that AAA is rare among the Asian population.

  15. Preoperative evaluation of the artery of adamkiewicz by MR angiography and CT angiography in patients with a thoracic aortic aneurysm

    International Nuclear Information System (INIS)

    Niinuma, Hiroyuki; Ohira, Atsushi; Makita, Shinji; Moriai, Yoshiteru; Hiramori, Katsuhiko; Yoshioka, Kunihiro; Nakajima, Takayuki; Kawazoe, Kohei

    2002-01-01

    Paraplegia is known as an extremely serious and important complication of surgical repair in patients with a thoraco-abdominal aortic aneurysm. It is important to evaluate the artery of Adamkiewicz (AdA) before surgical repair to prevent paraplegia. But the AdA is difficult to visualize by the invasive and hazardous, conventional selective angiography. The aim of this study was to visualize AdA by MR angiography (MRA) and CT angiography (CTA). Twenty-one consecutive patients with a thoracic aortic aneurysm underwent both gadolinium-enhanced, three-dimensional MRA and CTA using multislice helical CT. The AdA was successfully visualized in 15 of the 21 patients (71.4%) by MRA, and in 17 of those 21 patients (80.9%) by CTA. Its continuity was depicted in 12 of 15 patients (80%) by MRA, and in 9 of 17 patients (47%) by CTA. AdA was visualized at 85.7% by MRA or CTA, respectively. This study shows that CTA is a much more sensitive method to detect AdA than MRA. On the other hand, MRA is better to evaluate the continuity of AdA from the descending aorta to the anterior spinal artery, than CTA. Therefore, MRA and CTA are both useful for a preoperative evaluation of AdA and its detailed vascular anatomy from the aorta to the anterior spinal artery. (author)

  16. Suprarenal fixation resulting in intestinal malperfusion after endovascular aortic aneurysm repair.

    Science.gov (United States)

    Siani, Andrea; Accrocca, Federico; De Vivo, Gennaro; Marcucci, Giustino

    2016-05-01

    Superior mesenteric artery (SMA) and coeliac axis (CA) occlusion after endovascular abdominal aneurysm aortic repair (EVAR-AAA), using endograft with suprarenal fixation, are uncommon. However, we are reporting a case of visceral malperfusion, which occurred 7 days after successful EVAR with suprarenal fixation for symptomatic AAA. Endograft metal stent barbs caused severe stenosis of SMA and CA. A successful recovery of SMA was carried out by means of a balloon-expandable stent released through bare metal stent barbs. We believe that an unfavourable anatomy of a proximal aortic neck and visceral aorta may have caused a wrong stent strut deployment with the coverage of CA and SMA. © The Author 2016. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.

  17. Aortic reconstruction with bovine pericardial grafts

    Directory of Open Access Journals (Sweden)

    Silveira Lindemberg Mota

    2003-01-01

    Full Text Available INTRODUCTION: Glutaraldehyde-treated crimped bovine pericardial grafts are currently used in aortic graft surgery. These conduits have become good options for these operations, available in different sizes and shapes and at a low cost. OBJECTIVE:To evaluate the results obtained with bovine pericardial grafts for aortic reconstruction, specially concerning late complications. METHOD: Between January 1995 and January 2002, 57 patients underwent different types of aortic reconstruction operations using bovine pericardial grafts. A total of 29 (50.8% were operated on an urgent basis (mostly acute Stanford A dissection and 28 electively. Thoracotomy was performed in three patients for descending aortic replacement (two patients and aortoplasty with a patch in one. All remaining 54 underwent sternotomy, cardiopulmonary bypass and aortic resection. Deep hypothermia and total circulatory arrest was used in acute dissections and arch operations. RESULTS: Hospital mortality was 17.5%. Follow-up was 24.09 months (18.5 to 29.8 months confidence interval and complication-free actuarial survival curve was 92.3% (standard deviation ± 10.6. Two patients lately developed thoracoabdominal aneurysms following previous DeBakey II dissection and one died from endocarditis. One "patch" aortoplasty patient developed local descending aortic pseudoaneurysm 42 months after surgery. All other patients are asymptomatic and currently clinically evaluated with echocardiography and CT scans, showing no complications. CONCLUSION: Use of bovine pericardial grafts in aortic reconstruction surgery is adequate and safe, with few complications related to the conduits.

  18. Mycotic pulmonary artery aneurysm as an unusual complication of thoracic actinomycosis

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Hyung-Soo; Lee, Sang-Yeub [Wonkwang University College, Iksan (Korea, Republic of); Oh, Yu-Whan; Noh, Hyung-Jun; Lee, Ki-Yeol; Kang, Eun-Young [Korea University Hospital and Korea University College, Seoul (Korea, Republic of)

    2004-03-15

    Although pulmonary artery aneurysms are a rare vascular anomaly, they are seen in a wide variety of conditions, such as congenital heart disease, infection, trauma, pulmonary hypertension, cystic medial necrosis and generalized vasculitis. To our knowledge, mycotic aneurysms caused by pulmonary actinomycosis have not been reported in the radiologic literature. Herein, a case of pulmonary actinomycosis complicated by mycotic aneurysm is presented. On CT scans, this case showed focal aneurysmal dilatation of a peripheral pulmonary artery within necrotizing pneumonia of the right lower lobe, which was successfully treated with transcatheter embolization using wire coils.

  19. Mycotic pulmonary artery aneurysm as an unusual complication of thoracic actinomycosis

    International Nuclear Information System (INIS)

    Kim, Hyung-Soo; Lee, Sang-Yeub; Oh, Yu-Whan; Noh, Hyung-Jun; Lee, Ki-Yeol; Kang, Eun-Young

    2004-01-01

    Although pulmonary artery aneurysms are a rare vascular anomaly, they are seen in a wide variety of conditions, such as congenital heart disease, infection, trauma, pulmonary hypertension, cystic medial necrosis and generalized vasculitis. To our knowledge, mycotic aneurysms caused by pulmonary actinomycosis have not been reported in the radiologic literature. Herein, a case of pulmonary actinomycosis complicated by mycotic aneurysm is presented. On CT scans, this case showed focal aneurysmal dilatation of a peripheral pulmonary artery within necrotizing pneumonia of the right lower lobe, which was successfully treated with transcatheter embolization using wire coils

  20. The mechanical role of thrombus on the growth rate of an abdominal aortic aneurysm (AAA)

    NARCIS (Netherlands)

    Speelman, L.; Schurink, G.W.H.; Bosboom, E.M.H.; Buth, J.; Breeuwer, M.; Vosse, van de F.N.; Jacobs, M.J.H.M.

    2010-01-01

    Objectives: In the decision for surgical repair of abdominal aortic aneurysms (AAAs), the maximum diameter is the main factor. Several studies have concluded that the diameter may not be reliable as rupture risk criterion for the individual patient and wall stress was found to have a higher

  1. Flow and wall shear stress characterization following endovascular aneurysm repair and endovascular aneurysm sealing in an infrarenal aneurysm model

    NARCIS (Netherlands)

    Boersen, Johannes T.; Groot Jebbink, Erik; Versluis, Michel; Slump, Cornelis H.; Ku, David N.; de Vries, Jean-Paul P.M.; Reijnen, Michel M.P.J.

    2017-01-01

    Background Endovascular aneurysm repair (EVAR) with a modular endograft has become the preferred treatment for abdominal aortic aneurysms. A novel concept is endovascular aneurysm sealing (EVAS), consisting of dual endoframes surrounded by polymer-filled endobags. This dual-lumen configuration is

  2. Endovascular treatment of type II endoleak following thoracic endovascular aortic repair for thoracic aortic aneurysm: Case report of squeeze technique to reach the aneurysmal sac

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Hyun Jung; Kim, Chang Won; Lee, Tae Hong; Song, Seung Hwan; Lee, Chung Won; Chung, Sung Woon [Pusan National University Hospital, School of Medicine, Pusan National University, Busan (Korea, Republic of)

    2014-12-15

    Type II endoleaks are common after thoracic endovascular aortic repair (TEVAR). Various strategies are introduced to manage type II endoleaks, such as the use of coils, plugs, or liquid embolic agents (histoacryl, thrombin, onyx, etc.) through a transarterial approach or a direct puncture of the aneurysmal sac. We herein report a case of a type II endoleak caused by reverse blood flow through intercostal artery after TEVAR which was successfully treated with n-butyl cyanoacrylate (histoacryl)-lipiodol mixture by a squeeze technique to reach the aneurismal sac using a microcatheter.

  3. Aortic Stent-Graft Infection Following Septic Complications of a Kidney Stone

    International Nuclear Information System (INIS)

    Berg, H. Rogier van den; Leijdekkers, Vanessa J.; Vahl, Anco

    2006-01-01

    A 73-year-old man was treated because of a renal pelvis blowout of the left kidney for which he received a nephrostomy catheter without antibiotic prophylaxis. Almost a year previously this patient had undergone endovascular repair of a symptomatic infrarenal abdominal aorta aneurysm. Four weeks after the diagnosis and treatment of the ruptured renal pelvis, a new computed tomography scan and ultrasound-guided fine needle aspiration confirmed the diagnosis of infected aortic stent-graft. An extra-anatomic axillo-uniiliac bypass and graft excision was performed. Two weeks after discharge the patient returned to the hospital with an occlusion of his left renal artery and died of renal failure. This is the first time an infected aortic stent-graft after a renal pelvis blowout has been reported. Although infections of aortic stent-grafts occur rarely, one should be aware of the possibility in aortic stent-graft patients undergoing abdominal procedures without antibiotic prophylaxis

  4. Common and uncommon CT findings in rupture and impending rupture of abdominal aortic aneurysms

    International Nuclear Information System (INIS)

    Ahmed, M.Z.; Ling, L.; Ettles, D.F.

    2013-01-01

    The rapid imaging evaluation and diagnosis of rupture and impending rupture of an abdominal aortic aneurysm (AAA) is imperative. This article describes the imaging findings of rupture, impending rupture, and other abdominal aortic abnormalities. It is important not to overlook AAA as the consequences can be life threatening. All patients who had open or endovascular repair of AAA rupture over 6 years (2008–2012) were identified from our departmental database. The computed tomography (CT) images of 99 patients were reviewed for relevant findings. The mean age of the patients was 65 years and 85% were male

  5. Medical image of the week: atherosclerotic aneurysm of aortic arch and descecnding thoracic aorta

    Directory of Open Access Journals (Sweden)

    Parasram M

    2016-02-01

    Full Text Available No abstract available. Article truncated after 150 words. A 94-year-old Spanish-speaking woman presented to the hospital with intermittent episodes of dyspnea and abdominal pain for one week. Her past medical history was notable for 30 pack-year smoking history and hypertension, which was reportedly controlled with medical therapy. Physical exam showed trace peripheral edema bilaterally, intact peripheral pulses, and a mild abdominal bruit. Work up at the emergency department revealed a non-ST elevation myocardial infarction with troponin T of 0.34 ng/mL but no ST-wave abnormality on electrocardiography. Chest x-ray displayed an incidental thoracic aneurysm (Figure 1. Chest computed tomography with contrast demonstrated a continuous aneurysm of the aortic arch and descending thoracic aorta with diameters measuring 6.8 cm and 6 cm, respectively (Figure 2A and 2B. Eccentric thrombi are noted in the aortic arch and the descending aorta. Interestingly, the distal descending thoracic aorta curves as it transitions to the abdominal aorta, which is evidence of a tortuous descending ...

  6. Endoluminal Treatment of Ruptured Abdominal Aortic Aneurysm with Small Intestinal Submucosa Sandwich Endografts: A Pilot Study in Sheep

    International Nuclear Information System (INIS)

    Yamada, Katsuyuki; Pavcnik, Dusan; Uchida, Barry T.; Timmermans, Hans A.; Corless, Christopher L.; Yin, Qiang; Yamakado, Koichiro; Wha Park, Joong; Roesch, Josef; Keller, Frederick S.; Sato, Morio; Yamada, Ryusaku

    2001-01-01

    Purpose: To evaluate efficacy of small intestinal submucosa (SIS) Sandwich endografts for the treatment of acute rupture of abdominal aortic aneurysms (AAA) and to explore the short-term reaction of the aorta to this material.Methods: In eight adult sheep, an infrarenal AAA was created transluminally by dilation of a short Palmaz stent. In six sheep, the aneurysm was then ruptured by overdilation of the stent with a large angioplasty balloon. Two sheep with AAAs that were not ruptured served as controls. A SIS Sandwich endograft, consisting of a Z stent frame with 5 bodies and covered inside and out with SIS, was used to exclude the ruptured and non-ruptured AAAs. Follow-up aortography was done immediately after the procedure and before sacrifice at 4, 8, or 12 weeks. Autopsy and histologic studies followed.Results: Endograft placement was successful in all eight sheep. Both ruptured and non-ruptured AAAs were successfully excluded. Three animals with AAA rupture developed hind leg paralysis due to compromise of the arterial supply to the lower spinal cord and were sacrificed 1 day after the procedure. In five animals, three with rupture and two controls, follow-up aortograms revealed no aortic stenoses and no perigraft leaks. Gross and histologic studies revealed incorporation of the endografts into the aortic wall with replacement of SIS by dense neointima that was completely endothelialized in areas where the endograft was in direct contact with the aortic wall. In central portions of the endograft, in contact with the thrombosed aneurysm, endothelialization was incomplete even at 12 weeks.Conclusion: The SIS Sandwich endografts effectively excluded simple AAAs and ruptured AAAs. They were rapidly incorporated into the aortic wall. A detailed long-term study is warranted

  7. [Bentall operation combined with total arch replacement and stented elephant trunk implantation for serious Debakey I aortic dissecting aneurysm].

    Science.gov (United States)

    Gu, Tian-Xiang; Wang, Chun; Zhang, Yu-Hai

    2008-12-01

    To summarize the clinical experience of Bentall operation combined with total arch replacement and stented elephant trunk implantation for serious Debakey I aortic dissecting aneurysm. Twelve patients with serious Debakey I aortic dissecting aneurysm underwent surgical treatment from January 2005 to December 2007. There were 10 male and 2 female with the mean age of (40.1 +/- 9.5) years old. There were acute aortic dissection in 9 cases, chronic aortic dissection in 3 cases. The inner diameter of aorta was (5.3 +/- 1.8) cm. There were Marfan syndrome in 4 cases, aortic regurgitation in all cases, severely persistent chest pain in 9 cases, acute left heart failure in 8 cases, and cardiac tamponade in 4 cases. Bentall operations combined with total arch replacement and stented elephant trunk implantation were performed by using deep hypothermic circulatory arrest and antegrade selective cerebral perfusion in all cases. Urgent surgery underwent in 9 cases. The mean interval between the onset of aortic dissection and the accomplishment of surgery was (41.0 +/- 15.9) hours. Cardiopulmonary bypass time was (191 +/- 26) min, average cross clamp time was (134 +/- 31) min, and average deep hypothermic circulatory arrest time was (50.0 +/- 14.5) min. One patient died in hospital. The time stayed in ICU was 3 to 27 d. Mental disorder in 6 cases, hemi-paralysis in 1 case, amputation in 1 case, hemorrhage of anastomosis in 1 case, hemorrhage of alimentary tract in 1 case, and pleural effusion in 4 cases were recorded. Eleven cases were followed-up for 8 weeks to 36 months. There were no bending of the stents and no obstruction in the vascular prosthesis.No re-operation was needed. One case died 6 months postoperatively. Bentall operation combined with total arch replacement and stented elephant trunk implantation is safe and effective for serious Debakey I aortic dissecting aneurysm, while good organs protection and consummate cardiopulmonary bypass were taken.

  8. Surgical treatment of Marfan patients with aneurysms and dissection of the proximal aorta.

    Science.gov (United States)

    Mingke, D; Dresler, C; Pethig, K; Heinemann, M; Borst, H G

    1998-02-01

    The authors retrospectively analyzed early and late results of surgical treatment for 79 Marfan patients with aneurysms and dissection of the proximal aorta. From September 1979 to February 1996, 79 patients with Marfan syndrome underwent aortic root replacement using composite grafts (n=68, Bentall-technique 63, button-technique 5), and ascending aortic replacement with a valve-sparing procedure (n=11). There were 12 patients (15.2%) who simultaneously received partial or total arch replacement. 55 patients (69.6%) were male, and 24 female (30.4%). The average age was 33.8 years. Forty-one patient (51.9%) had non-dissecting aneurysms while the remaining 38 patients suffered from either acute (24.0%) or chronic aortic dissection (24.0%). The aortic valve was involved in 97.5% of all cases. The total early mortality (valve-sparing operation and in those with chronic aortic dissection. The follow-up rate was 98.7%. During a mean follow-up of 68+/-25 months 10 patients (13.3%) died and cardiac complications were a common cause of the late deaths. There was no late mortality in the valve-sparing operations during a mean follow-up period of 8+/-6 months, however, 1 required valve replacement. 19 (25.3%) of the 75 patients surviving late have undergone 25 secondary operations on the cardiovascular system. Reoperations at aortic sites distant from the original were much more frequent after primary repair for acute and chronic dissection when compared to non-dissecting aneurysms (pMarfan-patients with non-dissecting and dissecting aneurysms of the aortic root. Our early experience in 11 patients with valve-sparing procedures indicated that this,variant may be the better choice in selected patients.

  9. Ascending aortic aneurysm and diaphragmatic hernia in a case of Marfan syndrome.

    Science.gov (United States)

    Kothari, Jignesh; Hinduja, Manish; Baria, Kinnaresh; Pandya, Himani

    2017-06-01

    Marfan syndrome commonly affects the skeletal, ocular, and cardiovascular systems. Involvement of the gastrointestinal system is known but uncommon. Intervention depends upon the system involved and the severity of symptoms. Special awareness is required for the diagnosis and management of gastrointestinal involvement in these patients. We report a rare case of simultaneous surgical repair of an ascending aortic aneurysm and a type IV hiatal hernia in a 35-year-old man with Marfan syndrome.

  10. Developing a new endograft for the treatment of juxtarenal aortic aneurysms: definition and experimentation

    Directory of Open Access Journals (Sweden)

    Sergio Q. Belczak

    2015-06-01

    Full Text Available OBJECTIVES: To analyze angiotomographic parameters of juxtarenal aneurysms to assess the applicability of an endograft model to patients and to create in vitro and in vivo models to assess the new endograft. METHODS: A total of 49 patients with juxtarenal aneurysms were submitted to angiotomographic evaluation, and parameters such as the aortic diameter, the length of the neck, and the angulations of the celiac trunk, superior mesenteric artery and renal arteries; the distances between them; and anatomic variations were analyzed. Based on these parameters, an endograft model was developed and tested in a newly created in vitro model of juxtarenal aneurysm. An experimental model of juxtarenal aneurysm was then established in six pigs weighing 50-60 kg to assess the new endograft model. RESULTS: The angiotomographic parameters of juxtarenal aneurysm measured in this study were similar to those reported in the literature and allowed the development of an endograft based on the hourglass concept, which was applicable to 85.8% of the patients. The in vitro model of juxtarenal aneurysm evidenced good radiopacity and functionality and permitted adjustments in the new device and technical improvements in the procedures for treating these aneurysms. In addition, the porcine model of juxtarenal aneurysm was successfully created in all six animals using a bovine pericardial patch, and use of the new endograft in three pilot procedures evidenced its feasibility. CONCLUSIONS: The Hourglass endograft was rendered applicable to treatment of the majority of patients with juxtarenal aneurysms simply by changing its diameter. Moreover, the new in vitro and in vivo models were shown to be effective for assessing both the presented endograft and experiments assessing the endovascular treatment of juxtarenal aneurysms.

  11. Preoperative evaluation of the abdominal aortic aneurysm using spiral CT

    International Nuclear Information System (INIS)

    Chisuwa, Hisanao; Nishimaki, Keiji; Arai, Masayuki; Honda, Haruyasu; Urata, Koichi; Miyagawa, Yusuke; Makuuchi, Masatoshi; Shimizu, Mikio; Okamoto, Kohei.

    1995-01-01

    Six patients with abdominal aortic aneurysm (AAA) were studied with three-dimensionally reconstructed CT angiography (3D-CTA) in order to evaluate its usefulness as a diagnostic tool for vascular surgery patients. Images of the intravenously contrasted abdominal aorta were obtained with spiral scan during a single breath hold. The images of the abdominal aorta and its major branches were three-dimensionally reconstructed with a shaded surface display mode. The three-dimensional image reconstruction was successful in all the six cases and performed without difficulties. Shaded surface display presented a deficit to depict the aortic wall with mural thrombus. However, multidirectional display of the abdominal aorta and its branches facilitated interpretation of the anatomical details of the lesions and planning of surgical repair. 3D-CTA is an alternative to conventional aortography for preoperative diagnosis of AAA. Moreover it was shown to be noninvasive, easy to proceed. It presented good angiographical resolution that can be used as a precise diagnostic tool in vascular surgery. (author)

  12. Atmospheric Pressure and Abdominal Aortic Aneurysm Rupture : Results from a Time Series Analysis and Case-Crossover Study

    NARCIS (Netherlands)

    Penning De Vries, Bas B.L.; Kolkert, Joé L.P.; Meerwaldt, Robbert; Groenwold, Rolf H.H.

    2017-01-01

    Background: Associations between atmospheric pressure and abdominal aortic aneurysm (AAA) rupture risk have been reported, but empirical evidence is inconclusive and largely derived from studies that did not account for possible nonlinearity, seasonality, and confounding by temperature. Methods:

  13. Outcomes of Aortic Valve-Sparing Operations in Marfan Syndrome.

    Science.gov (United States)

    David, Tirone E; David, Carolyn M; Manlhiot, Cedric; Colman, Jack; Crean, Andrew M; Bradley, Timothy

    2015-09-29

    In many cardiac units, aortic valve-sparing operations have become the preferred surgical procedure to treat aortic root aneurysm in patients with Marfan syndrome, based on relatively short-term outcomes. This study examined the long-term outcomes of aortic valve-sparing operations in patients with Marfan syndrome. All patients with Marfan syndrome operated on for aortic root aneurysm from 1988 through 2012 were followed prospectively for a median of 10 years. Follow-up was 100% complete. Time-to-event analyses were calculated using the Kaplan-Meier method with log-rank test for comparisons. A total of 146 patients with Marfan syndrome had aortic valve-sparing operations. Reimplantation of the aortic valve was performed in 121 and remodeling of the aortic root was performed in 25 patients. Mean age was 35.7 ± 11.4 years and two-thirds were men. Nine patients had acute, 2 had chronic type A, and 3 had chronic type B aortic dissections before surgery. There were 1 operative and 6 late deaths, 5 caused by complications of dissections. Mortality rate at 15 years was 6.8 ± 2.9%, higher than the general population matched for age and sex. Five patients required reoperation on the aortic valve: 2 for endocarditis and 3 for aortic insufficiency. Three patients developed severe, 4 moderate, and 3 mild-to-moderate aortic insufficiency. Rate of aortic insufficiency at 15 years was 7.9 ± 3.3%, lower after reimplantation than remodeling. Nine patients developed new distal aortic dissections during follow-up. Rate of dissection at 15 years was 16.5 ± 3.4%. Aortic valve-sparing operations in patients with Marfan syndrome were associated with low rates of valve-related complications in long-term follow-up. Residual and new aortic dissections were the leading cause of death. Copyright © 2015 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

  14. Lack of association between inguinal hernia and abdominal aortic aneurysm in a population-based male cohort

    DEFF Research Database (Denmark)

    Henriksen, N A; Sorensen, L T; Jorgensen, L N

    2013-01-01

    Previous studies have reported a higher prevalence of inguinal hernia in patients with abdominal aortic aneurysm (AAA). The aim of this study was to explore the association between inguinal hernia and AAA in a large population-based cohort of men who had screening for AAA....

  15. Right Valsalva Sinus Aneurysm Protruding Into the Right Ventricle: A Case Report

    Directory of Open Access Journals (Sweden)

    Ata H. Afshar

    2015-09-01

    Full Text Available A separation between the aortic media and annulus fibrosus causes a rare cardiac abnormality called sinus of Valsalva aneurysm (SVA that may be congenital or acquired. It is more prevalent in the right coronary sinus (65%-85% but it has been seen rarely in non-coronary (10%-30%or Left coronary sinus (<5%. The most common complication is rupture of the Aneurysm. We present an 80-year-old male with expanding right Valsalva sinus aneurysm and protruding into right ventricle. The conventional treatment is surgical repair under cardio-pulmonary bypass or percutaneous catheter closure. The aneurysm was successfully excised surgically under direct guidance of trans-esophageal echocardiography (TEE.

  16. Do Scoring Systems Help in Predicting Survival Following Ruptured Abdominal Aortic Aneurysm Surgery?

    Science.gov (United States)

    Gatt, Marcel; Goldsmith, Paul; Martinez, Marcos; Barandiaran, Jesus; Grover, Kartikae; El-Barghouti, Naif; Perry, Eugene P

    2009-01-01

    INTRODUCTION The aim of this study was to assess the value of the Hardman Index and the Glasgow Aneurysm Score in predicting postoperative mortality in patients with ruptured abdominal aortic aneurysm (rAAA), and to assess the correlation between the two. PATIENTS AND METHODS Patients admitted with rAAA were identified from a hospital database. Hospital records were reviewed and a retrospective Hardman Index and Glasgow Aneurysm Score was calculated. Poor postoperative prognosis was considered at a Glasgow Aneurysm Score > 95 or a Hardman Index ≥ 3. RESULTS A total of 96 patients with a median age of 77.5 years (interquartile range, 71–83 years) and a male:female ratio of 2:1 were identified. Of these, 37 patients were not offered surgery and this was associated with 100% mortality. Of the 59 operated patients, 36 (61%) patients died postoperatively. Operated patients had a median Glasgow Aneurysm Score of 91 (interquartile range, 77–101) and a Hardman Index of 2 (interquartile range, 1–2). In this group, a Glasgow Aneurysm Score > 95 or a Hardman Index ≥ 3 was not associated with mortality (P = 0.10 and P = 0.79, respectively). Correlation between the scoring systems was poor (+0.42 τb). CONCLUSIONS The scoring systems assessed did not help predict the outcome of rAAA surgery, and correlated poorly with each other. They do not aid clinical judgement. PMID:19102824

  17. Shared Genetic Risk Factors of Intracranial, Abdominal, and Thoracic Aneurysms

    NARCIS (Netherlands)

    van 't Hof, Femke N G; Ruigrok, Ynte M; Lee, Cue Hyunkyu; Ripke, Stephan; Anderson, Graig; de Andrade, Mariza; Baas, Annette F; Blankensteijn, Jan D; Böttinger, Erwin P; Bown, Matthew J; Broderick, Joseph; Bijlenga, Philippe; Carrell, David S; Crawford, Dana C; Crosslin, David R; Ebeling, Christian; Eriksson, Johan G; Fornage, Myriam; Foroud, Tatiana; von Und Zu Fraunberg, Mikael; Friedrich, Christoph M; Gaál, Emília I; Gottesman, Omri; Guo, Dong-Chuan; Harrison, Seamus C; Hernesniemi, Juha; Hofman, Albert; Inoue, Ituro; Jääskeläinen, Juha E; Jones, Gregory T; Kiemeney, Lambertus A L M; Kivisaari, Riku; Ko, Nerissa; Koskinen, Seppo; Kubo, Michiaki; Kullo, Iftikhar J; Kuivaniemi, Helena; Kurki, Mitja I; Laakso, Aki; Lai, Dongbing; Leal, Suzanne M; Lehto, Hanna; LeMaire, Scott A; Low, Siew-Kee; Malinowski, Jennifer; McCarty, Catherine A; Milewicz, Dianna M; Mosley, Thomas H; Nakamura, Yusuke; Nakaoka, Hirofumi; Niemelä, Mika; Pacheco, Jennifer; Peissig, Peggy L; Pera, Joanna; Rasmussen-Torvik, Laura; Ritchie, Marylyn D; Rivadeneira, Fernando; van Rij, Andre M; Santos-Cortez, Regie Lyn P; Saratzis, Athanasios; Slowik, Agnieszka; Takahashi, Atsushi; Tromp, Gerard; Uitterlinden, André G; Verma, Shefali S; Vermeulen, Sita H; Wang, Gao T; Han, Buhm; Rinkel, Gabriël J E; de Bakker, Paul I W

    2016-01-01

    BACKGROUND: Intracranial aneurysms (IAs), abdominal aortic aneurysms (AAAs), and thoracic aortic aneurysms (TAAs) all have a familial predisposition. Given that aneurysm types are known to co-occur, we hypothesized that there may be shared genetic risk factors for IAs, AAAs, and TAAs. METHODS AND

  18. Shared genetic risk factors of intracranial, abdominal, and thoracic aneurysms

    NARCIS (Netherlands)

    van 't Hof, Femke N G; Ruigrok, Ynte M; Lee, Cue Hyunkyu; Ripke, Stephan; Anderson, Graig; de Andrade, Mariza; Baas, Annette F; Blankensteijn, Jan D; Böttinger, Erwin P; Bown, Matthew J; Broderick, Joseph; Bijlenga, Philippe; Carrell, David S; Crawford, Dana C; Crosslin, David R; Ebeling, Christian; Eriksson, Johan G; Fornage, Myriam; Foroud, Tatiana; von Und Zu Fraunberg, Mikael; Friedrich, Christoph M; Gaál, Emília I; Gottesman, Omri; Guo, Dong-Chuan; Harrison, Seamus C; Hernesniemi, Juha; Hofman, Albert; Inoue, Ituro; Jääskeläinen, Juha E; Jones, Gregory T; Kiemeney, Lambertus A L M; Kivisaari, Riku; Ko, Nerissa; Koskinen, Seppo; Kubo, Michiaki; Kullo, Iftikhar J; Kuivaniemi, Helena; Kurki, Mitja I; Laakso, Aki; Lai, Dongbing; Leal, Suzanne M; Lehto, Hanna; LeMaire, Scott A; Low, Siew-Kee; Malinowski, Jennifer; McCarty, Catherine A; Milewicz, Dianna M; Mosley, Thomas H; Nakamura, Yusuke; Nakaoka, Hirofumi; Niemelä, Mika; Pacheco, Jennifer; Peissig, Peggy L; Pera, Joanna; Rasmussen-Torvik, Laura; Ritchie, Marylyn D; Rivadeneira, Fernando; van Rij, Andre M; Santos-Cortez, Regie Lyn P; Saratzis, Athanasios; Slowik, Agnieszka; Takahashi, Atsushi; Tromp, Gerard; Uitterlinden, André G; Verma, Shefali S; Vermeulen, Sita H; Wang, Gao T; Han, Buhm; Rinkel, Gabriël J E; de Bakker, Paul I W

    2016-01-01

    Background--Intracranial aneurysms (IAs), abdominal aortic aneurysms (AAAs), and thoracic aortic aneurysms (TAAs) all have a familial predisposition. Given that aneurysm types are known to co-occur, we hypothesized that there may be shared genetic risk factors for IAs, AAAs, and TAAs. Methods and

  19. Retrograde ascending aortic dissection during or after thoracic aortic stent graft placement: insight from the European registry on endovascular aortic repair complications

    DEFF Research Database (Denmark)

    Eggebrecht, Holger; Thompson, Matt; Rousseau, Hervé

    2009-01-01

    BACKGROUND: Single-center reports have identified retrograde ascending aortic dissection (rAAD) as a potentially lethal complication of thoracic endovascular aortic repair (TEVAR). METHODS AND RESULTS: Between 1995 and 2008, 28 centers participating in the European Registry on Endovascular Aortic...

  20. Intimal aortic sarcoma mimicking ruptured thoracoabdominal type IV aneurysm. a rare case report and review of the literature

    Directory of Open Access Journals (Sweden)

    Dedeilias Panagiotis

    2011-12-01

    Full Text Available Abstract Primary intimal aortic sarcoma represents a very rare and highly lethal medical entity. Diagnosis is made either by embolic events caused by the tumor or by surrounding tissue symptoms such as pain. Herein we report an extremely rare case of a 51-year-old man previously operated for ascending aortic aneurysm, who presented with clinical and radiological findings suggestive of a ruptured thoracoabdominal type IV aneurysm. The patient underwent radical resection of the aorta and surrounding tissue with placement of a composite 4-branched graft. The diagnosis was made by frozen section and regular histopathologic examination of the specimen and the patient received adjuvant chemotherapy. Nine months after surgery the patient is still alive and has no signs of recurrence. We review the literature and discuss the option of postoperative chemotherapy.

  1. Contemporary management of isolated chronic infrarenal abdominal aortic dissections.

    Science.gov (United States)

    Faries, Christopher M; Tadros, Rami O; Lajos, Paul S; Vouyouka, Ageliki G; Faries, Peter L; Marin, Michael L

    2016-11-01

    mortality rate for endovascular intervention was 0%. The only open surgical repair performed was on a patient with a ruptured AAA, which the patient did not survive. Angioplasty with stent or stent graft placement was performed in four patients for the treatment of symptomatic arterial insufficiency resulting from aortic dissection. No patients experienced restenosis, and no reinterventions were performed. Isolated infrarenal aortic dissection is an uncommon vascular disease that is related to hypertension, hyperlipidemia, and atherosclerosis and may be associated with infrarenal AAA formation. The presence of dissection does not appear to increase the risk of complication or mortality for repair of concomitant aneurysm or for treatment of stenosis. Copyright © 2016. Published by Elsevier Inc.

  2. Technical and clinical success of infrarenal endovascular abdominal aortic aneurysm repair: A 10-year single-center experience

    International Nuclear Information System (INIS)

    Steingruber, I.E.; Neuhauser, B.; Seiler, R.; Greiner, A.; Chemelli, A.; Kopf, H.; Walch, C.; Waldenberger, P.; Jaschke, W.; Czermak, B.

    2006-01-01

    Objective: The aim of our retrospective study was to review our single-center experience with aortic abdominal aneurysm (AAA) repair retrospectively. Material and methods: From 1995 to 2005, 70 consecutive patients affected by AAA were treated by endovascular stent-graft repair. Mean follow-up was 23.9 months. Follow-up investigations were performed at 6 and 12 months and yearly thereafter. Five different stent-graft designs were compared to each other. Primary technical success (PTS), assisted primary technical success (APTS), primary clinical success (PCS) and secondary clinical success (SCS) were evaluated. Results: All over PTS was achieved in 94.3%, APTS in 97.1%, PCS in 61.4%, APCS in 64.3% and SCS in 70%. There were 3 type I endoleaks, 25 type II endoleaks, 4 type III endoleaks, 8 limb problems, 5 conversions to open surgery, 10 aneurysm sac expansions and 14 device migrations. Patients with newer generation devices showed better results than patients with first generation prosthesis. In addition results were better for grafts with suprarenal fixation (versus infrarenal fixation) and grafts with barbs and hooks (versus grafts without barbs and hooks). Patients with bad anatomic preconditions showed a higher complication rate. Conclusion: Contrary to first generation products, new stent-graft designs show acceptable technical and clinical results in endovascular AAA aneurysm repair. However, this therapy still should be reserved only for patients with significant comorbities and suitable anatomic conditions

  3. Technical and clinical success of infrarenal endovascular abdominal aortic aneurysm repair: A 10-year single-center experience

    Energy Technology Data Exchange (ETDEWEB)

    Steingruber, I.E. [Department of Radiology, University Hospital Innsbruck, Anichstr. 35, A-6020 Innsbruck (Austria)]. E-mail: iris.steingruber@uibk.ac.at; Neuhauser, B. [Department of Vascular Surgery, University Hospital Innsbruck, Anichstr. 35, A-6020 Innsbruck (Austria); Seiler, R. [Department of Vascular Surgery, University Hospital Innsbruck, Anichstr. 35, A-6020 Innsbruck (Austria); Greiner, A. [Department of Vascular Surgery, University Hospital Innsbruck, Anichstr. 35, A-6020 Innsbruck (Austria); Chemelli, A. [Department of Radiology, University Hospital Innsbruck, Anichstr. 35, A-6020 Innsbruck (Austria); Kopf, H. [Department of Radiology, University Hospital Innsbruck, Anichstr. 35, A-6020 Innsbruck (Austria); Walch, C. [Department of Radiology, University Hospital Innsbruck, Anichstr. 35, A-6020 Innsbruck (Austria); Waldenberger, P. [Department of Radiology, University Hospital Innsbruck, Anichstr. 35, A-6020 Innsbruck (Austria); Jaschke, W. [Department of Radiology, University Hospital Innsbruck, Anichstr. 35, A-6020 Innsbruck (Austria); Czermak, B. [Department of Radiology, University Hospital Innsbruck, Anichstr. 35, A-6020 Innsbruck (Austria)

    2006-09-15

    Objective: The aim of our retrospective study was to review our single-center experience with aortic abdominal aneurysm (AAA) repair retrospectively. Material and methods: From 1995 to 2005, 70 consecutive patients affected by AAA were treated by endovascular stent-graft repair. Mean follow-up was 23.9 months. Follow-up investigations were performed at 6 and 12 months and yearly thereafter. Five different stent-graft designs were compared to each other. Primary technical success (PTS), assisted primary technical success (APTS), primary clinical success (PCS) and secondary clinical success (SCS) were evaluated. Results: All over PTS was achieved in 94.3%, APTS in 97.1%, PCS in 61.4%, APCS in 64.3% and SCS in 70%. There were 3 type I endoleaks, 25 type II endoleaks, 4 type III endoleaks, 8 limb problems, 5 conversions to open surgery, 10 aneurysm sac expansions and 14 device migrations. Patients with newer generation devices showed better results than patients with first generation prosthesis. In addition results were better for grafts with suprarenal fixation (versus infrarenal fixation) and grafts with barbs and hooks (versus grafts without barbs and hooks). Patients with bad anatomic preconditions showed a higher complication rate. Conclusion: Contrary to first generation products, new stent-graft designs show acceptable technical and clinical results in endovascular AAA aneurysm repair. However, this therapy still should be reserved only for patients with significant comorbities and suitable anatomic conditions.

  4. Impact of bicuspid aortic valve on complications and death in infective endocarditis of native aortic valves.

    Science.gov (United States)

    Kahveci, Gokhan; Bayrak, Fatih; Pala, Selcuk; Mutlu, Bulent

    2009-01-01

    We retrospectively investigated the impact of bicuspid aortic valve on the prognosis of patients who had definite infective endocarditis of the native aortic valve.Of 51 patients, a bicuspid aortic valve was present in 22 (43%); the other 29 had tricuspid aortic valves. On average, the patients who had bicuspid valves were younger than those who had tricuspid valves. Patients with a tricuspid valve had larger left atrial diameters and were more likely to have severe mitral regurgitation.Periannular complications, which we detected in 19 patients (37%), were much more common in the patients who had a bicuspid valve (64% vs 17%, P = 0.001). The presence of a bicuspid valve was the only significant independent predictor of periannular complications. The in-hospital mortality rate in the bicuspid group was lower than that in the tricuspid group; however, this figure did not reach statistical significance (9% vs 24%, P = 0.15). In multivariate analysis, left atrial diameter was the only independent predictor associated with an increased risk of death (hazard ratio, 2.19; 95% confidence interval, 1.1-4.5; P = 0.031).In our study, patients with infective endocarditis in a bicuspid aortic valve were younger and had a higher incidence of periannular complications. Although a worse prognosis has been reported previously, we found that infective endocarditis in a native bicuspid aortic valve is not likely to increase the risk of death in comparison with infective endocarditis in native tricuspid aortic valves.

  5. Neurofibromatosis 1 vasculopathy manifesting as a peripheral aneurysm in an adolescent

    Energy Technology Data Exchange (ETDEWEB)

    Farmakis, Shannon G.; Khanna, Geetika [Washington University School of Medicine, Mallinckrodt Institute of Radiology, St. Louis, MO (United States); Han, Min; White, Frances [Washington University School of Medicine, Department of Pathology and Immunology, St. Louis, MO (United States)

    2014-10-15

    Arterial vasculopathy is a well-recognized but uncommon manifestation of neurofibromatosis type 1 (NF-1). It can manifest as stenoses, aneurysms or arteriovenous malformations. NF-1 vasculopathy typically involves the aorta, visceral arteries or carotid-vertebral circulation. Aortic and visceral vasculopathy typically presents as stenotic lesions, while aneurysms have been reported primarily in the subclavian/vertebral arteries. Aneurysms of the peripheral/extremity arteries are an extremely rare complication of NF-1 that may present as a mass or spontaneous rupture. We present the case of a teenage boy with an arm mass secondary to an aneurysm. We hope this case will increase recognition of the variable clinical manifestations of NF-1 vasculopathy among radiologists. (orig.)

  6. Abdominal aortic aneurysm screening program in Poland.

    Science.gov (United States)

    Jawien, A; Formankiewicz, B; Derezinski, T; Migdalski, A; Brazis, P; Woda, L

    Screening for abdominal aortic aneurysms (AAA) is currently recommended by several vascular societies. In countries where it has been introduced the prevalence of AAAs differed greatly and was mainly related to cigarette smoking. The screening program also had an enormous impact on the decrease of AAA ruptures and reduced mortality rate. These facts have led to the introduction of the first screening program for AAAs in Poland. The aim of the study was to determine the prevalence of AAAs among men aged 60 years and older undergoing ultrasound examination of the abdominal aorta. A single ultrasonography of the abdomen was performed to assess the aorta from the renal arteries to the bifurcation and the diameter of the aorta was measured at its widest point. The cut-off value for determining an aortic aneurysm was set at a diameter of ≥ 30 mm. All ultrasonography measurements were performed by physicians in outpatient departments throughout the Kuyavian-Pomeranian Province. Additionally, each subject had to fill out a questionnaire with demographic data, smoking habits, existing comorbidities and familial occurrence of AAAs. The study was conducted from October 2009 to November 2011. The abdominal aorta ultrasound examinations were carried out in 1556 men aged 60 years and older. The prevalence of AAA in the study population was 6.0 % (94 out of 1556). The average age of the men was 69 years (SD 6 years, range 60-92 years). In the study population 55 % of the men smoked or had smoked and 3 % were aware of the presence of AAAs in family members. There were three risk factors significantly associated with the presence of AAAs: age (p < 0.05), smoking (72.3 % vs 53.9 %, p = 0.004) and family history of AAAs (9.6 % vs 2.7 %, p = 0.017). The prevalence of AAAs among men in Poland is higher than in other European countries and the USA. The screening program for AAAs is an easy and reliable method for detecting early stages of the disease and

  7. Abdominal aortic aneurysm neck remodeling after Anaconda stent graft implantation.

    Science.gov (United States)

    Vukovic, Elisabeth; Czerny, Martin; Beyersdorf, Friedhelm; Wolkewitz, Martin; Berezowski, Mikolaj; Siepe, Matthias; Blanke, Philipp; Rylski, Bartosz

    2018-05-24

    The aim of this study was to define how the proximal landing zone changes geometrically after endovascular abdominal aortic aneurysm repair (EVAR) with the Anaconda (Vascutek, Inchinnan, United Kingdom) stent graft. Among 230 patients who underwent Anaconda stent graft implantation between 2005 and 2014, we included 126 with adequate computed tomography (CT) image quality and follow-up. CT analysis entailed the geometric changes in the main body, proximal rings, and proximal landing zone. The median CT follow-up was 2.0 years (345.8 patients-years). The proximal portion of the main body ring system flattened within the first year after EVAR, resulting in an up to 30° increase in the upper ring's angle in 40% patients and up to 40° increase in 24% patients. One year after EVAR, the upper ring angle increase slowed down. Aortic diameter measured at the level of the upper and lower ring expanded by 2 to 4 mm within 1 year, but remained unchanged afterward. The main body migrated continuously down toward the aortic bifurcation, attaining an average 6-mm increase in the distance between the superior mesenteric artery and main body within 4 years. Freedom from endoleak type IA was 95 ± 2% and 93 ± 3% after 1 and 4 years, respectively. The Anaconda main body ring system in its proximal portion flattens within the first year after EVAR, leading to an increase of 2 to 4 mm in the proximal landing zone's aortic diameter. The main body migrates slowly but continuously down toward the aortic bifurcation. Copyright © 2018 Society for Vascular Surgery. Published by Elsevier Inc. All rights reserved.

  8. Fluid-structure interaction of a patient-specific abdominal aortic aneurysm treated with an endovascular stent-graft.

    LENUS (Irish Health Repository)

    Molony, David S

    2009-01-01

    BACKGROUND: Abdominal aortic aneurysms (AAA) are local dilatations of the infrarenal aorta. If left untreated they may rupture and lead to death. One form of treatment is the minimally invasive insertion of a stent-graft into the aneurysm. Despite this effective treatment aneurysms may occasionally continue to expand and this may eventually result in post-operative rupture of the aneurysm. Fluid-structure interaction (FSI) is a particularly useful tool for investigating aneurysm biomechanics as both the wall stresses and fluid forces can be examined. METHODS: Pre-op, Post-op and Follow-up models were reconstructed from CT scans of a single patient and FSI simulations were performed on each model. The FSI approach involved coupling Abaqus and Fluent via a third-party software - MpCCI. Aneurysm wall stress and compliance were investigated as well as the drag force acting on the stent-graft. RESULTS: Aneurysm wall stress was reduced from 0.38 MPa before surgery to a value of 0.03 MPa after insertion of the stent-graft. Higher stresses were seen in the aneurysm neck and iliac legs post-operatively. The compliance of the aneurysm was also reduced post-operatively. The peak Post-op axial drag force was found to be 4.85 N. This increased to 6.37 N in the Follow-up model. CONCLUSION: In a patient-specific case peak aneurysm wall stress was reduced by 92%. Such a reduction in aneurysm wall stress may lead to shrinkage of the aneurysm over time. Hence, post-operative stress patterns may help in determining the likelihood of aneurysm shrinkage post EVAR. Post-operative remodelling of the aneurysm may lead to increased drag forces.

  9. HAS-1 genetic polymorphism in sporadic abdominal aortic aneurysm

    Directory of Open Access Journals (Sweden)

    Alberto Balbarini

    2009-04-01

    Full Text Available The hyaluronan synthase 1 (HAS-1 gene encodes a plasma membrane protein that synthesizes hyaluronan (HA, an extracellular matrix molecule. Accumulating evidence emphasizes the relevance of HA metabolism in an increasing number of processes of clinical interest, including abdominal aortic aneurysm (AAA. The existence of aberrant splicing variants of the HAS-1 gene could partly explain the altered extracellular matrix architecture and influence various biological functions, resulting in progressive arterial wall failure in the development of AAA. In the present study, we assessed the hypothesis that HAS-1 genetic 833A/G polymorphism could be associated with the risk of AAA by performing a case-control association study, involving AAA patients and healthy matched donors.

  10. Matrix metalloproteinase-2 gene variants and abdominal aortic aneurysm.

    Science.gov (United States)

    Smallwood, L; Warrington, N; Allcock, R; van Bockxmeer, F; Palmer, L J; Iacopetta, B; Golledge, J; Norman, P E

    2009-08-01

    To investigate associations between two polymorphisms of the matrix metalloproteinase-2 gene (MMP2) and the incidence and progression of abdominal aortic aneurysm (AAA). Cases and controls were recruited from a trial of screening for AAAs. The association between two variants of MMP2 (-1360C>T, and +649C>T) in men with AAA (n=678) and in controls (n=659) was examined using multivariate analyses. The association with AAA expansion (n=638) was also assessed. In multivariate analyses with adjustments for multiple testing, no association between either SNP and AAA presence or expansion was detected. MMP2 -1360C>T and +649C>T variants are not risk factors for AAA.

  11. Computerized tomographic evaluation of aortic prosthetic graft complications

    International Nuclear Information System (INIS)

    Kay, D.; Kalmar, J.A.

    1985-01-01

    Computerized tomography has been found to be an accurate and sensitive method of diagnosing complications of synthetic aortic grafts. Complications in this series of four cases included aortoesophageal fistula, aortoduodenal fistula, pseudoaneurysm, and retroperitoneal hematoma. 6 references, 5 figures

  12. Prevention and management of the complications during embolizing intracranial aneurysm with GDC

    International Nuclear Information System (INIS)

    Zhong Ming; Tan Xianxi; Wang Junlu; Hu Wenhao; Fan Lianghao

    2002-01-01

    Objective: To sum up the experience of embolization of intracranial aneurysm with Guglielmi detachable coil (GDC) and to discuss how to prevent and manage the complications during the endovascular treatment. Methods: 108 patients with intracranial aneurysm were embolized with GDC. 24 accident out of 20 patients during embolization were reviewed. Results: Among the 24 accidents, there were 10 aneurysm rupture, 5 over- embolization 5 coils end protruding to parent artery, and 4 thrombosis. Once the aneurysm ruptures, neutralizing heparin and continuing embolization was administered. Among 10 cases of aneurysm ruptures, 4 were death, 1 was severe deformity, 1 was mild deformity. Thrombolysis, heparinisation and raising blood pressure were used to control over-embolization, coil protrusion, and thrombosis. Among 5 cases of over-embolization, 1 died, 4 recovered. Among 5 cases of coils end protruding, 1 was severe deformity, 1 was mild deformity. Among 4 cases of embolization, 1 died, 1 was led sensory aphasics. The accidents resulted in 5 deaths (4.6%), 4 permanent neurological deficits (3.7%). Conclusion: The correct management of the complications during the treatment, the better understanding of the aneurysm and its parent artery angio-anatomy and the improved skill of embolizing technique are helpful to reduce the accidents and increase the cure rate

  13. Short-term curative effect of endovascular stent-graft treatment for aortic diseases in China: a systematic review.

    Directory of Open Access Journals (Sweden)

    Siwen Wang

    Full Text Available INTRODUCTION: We analyzed the short-term efficacy of endovascular treatment for aortic diseases by summarizing all available published data on endovascular stent-graft treatment for abdominal aortic aneurysm (AAA, thoracic aortic aneurysm (TAA, type A aortic dissection (type A AD and type B aortic dissection (type B AD in China. METHODS: We performed a systematic analysis of 935 published series on retrograde endovascular treatment for aortic diseases in China from January 1996 to November 2010. Based on the inclusion criteria, 159 studies, involving a total of 5531 patients, were included. RESULTS: There were no significant differences in procedural success among the studies (P>0.05. The rates of overall neurologic complications and stroke were significantly different in all two-group comparisons (P0.05. A significant difference was noted between the 30-day mortality rate of the type A AD patients and the AAA or type B AD patients (P<0.05. CONCLUSION: Endovascular stent-graft is a feasible and safe treatment for aortic diseases, with high procedural success and low incidences of post-procedural complications and short-term mortality. Endovascular treatment for AAA and type B AD is more efficient than for type A AD and TAA.

  14. From tissue iron retention to low systemic haemoglobin levels, new pathophysiological biomarkers of human abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Martinez-Pinna, Roxanna; Lindholt, Jes Sanddal; Madrigal-Matute, Julio

    2014-01-01

    Iron deposits are observed in tissue of abdominal aortic aneurysm (AAA) patients, although the underlying mechanisms are not completely elucidated. Therefore we explored circulating markers of iron metabolism in AAA patients, and tested if they could serve as biomarkers of AAA. Increased red bloo...

  15. Polymorphisms of the interleukin-6 gene promoter and abdominal aortic aneurysm.

    Science.gov (United States)

    Smallwood, L; Allcock, R; van Bockxmeer, F; Warrington, N; Palmer, L J; Iacopetta, B; Norman, P E

    2008-01-01

    Elevated levels of circulating interleukin-6 (IL-6) have been reported in patients with abdominal aortic aneurysms (AAAs). Although this implicates inflammation as a cause of AAAs, there is also evidence that the aneurysmal aorta may secrete IL-6 into the circulation as a result of aortic proteolysis. Genetic association studies are one means of trying to clarify the role of specific mediators in the causal pathway. The aim of the present study was to examine the association between variants of the IL-6 gene and AAAs. An association study involving 677 men with screen-detected AAAs and 656 age-matched controls was performed. Three variants in the IL-6 promoter region were analysed: IL-6-174G>C (rs1800795), IL-6-572G>C (rs1800796) and IL-6-597G>A (rs1800797). Univariate regression of SNP genotype on AAA as a binary outcome was initially performed under a range of genetic models (additive, dominant and recessive). This was followed by multivariate analyses, testing the same models but including risk factors known to be associated with AAAs. All analyses and haplotype estimation were performed under a generalized linear model framework. IL-6-572G>C polymorphism (frequency 1.5% in cases) was identified as an independent risk factor for AAA with an odds ratio (OR) of 6.00 (95%CI: 1.22, 29.41) when applied to the recessive model. No association was seen in the additive or dominant models. In a multivariate analysis using the most common haplotype (h.111, frequency 48.7%) as a reference, h.211 (frequency 4.4%) was an independent risk factor for AAA (OR 1.56, 95%CI: 1.02, 2.39). The IL-6 572G>C polymorphism (and h.211 haplotype) is associated with AAA, however it is too rare to be an important cause of most AAAs. This does not support the concept that the elevated level of IL-6 reported in patients with AAAs is a primary cause of the aneurysmal process.

  16. Can an accessory renal artery be safely covered during endovascular aortic aneurysm repair?

    OpenAIRE

    Antoniou, George A.; Karkos, Christos D.; Antoniou, Stavros A.; Georgiadis, George S.

    2013-01-01

    A best evidence topic was constructed according to a structured protocol. The question addressed was whether coverage of an accessory renal artery (ARA) in patients undergoing endovascular aortic aneurysm repair (EVAR) is associated with increased risk of renal impairment. Altogether, 106 papers were located using the reported searches, of which 5 represented the best evidence to answer the question. The authors, journal, date and country of publication, study type, patient group studied, rel...

  17. Effect of exercise on patient specific abdominal aortic aneurysm flow topology and mixing.

    Science.gov (United States)

    Arzani, Amirhossein; Les, Andrea S; Dalman, Ronald L; Shadden, Shawn C

    2014-02-01

    Computational fluid dynamics modeling was used to investigate changes in blood transport topology between rest and exercise conditions in five patient-specific abdominal aortic aneurysm models. MRI was used to provide the vascular anatomy and necessary boundary conditions for simulating blood velocity and pressure fields inside each model. Finite-time Lyapunov exponent fields and associated Lagrangian coherent structures were computed from blood velocity data and were used to compare features of the transport topology between rest and exercise both mechanistically and qualitatively. A mix-norm and mix-variance measure based on fresh blood distribution throughout the aneurysm over time were implemented to quantitatively compare mixing between rest and exercise. Exercise conditions resulted in higher and more uniform mixing and reduced the overall residence time in all aneurysms. Separated regions of recirculating flow were commonly observed in rest, and these regions were either reduced or removed by attached and unidirectional flow during exercise, or replaced with regional chaotic and transiently turbulent mixing, or persisted and even extended during exercise. The main factor that dictated the change in flow topology from rest to exercise was the behavior of the jet of blood penetrating into the aneurysm during systole. Copyright © 2013 John Wiley & Sons, Ltd.

  18. 3D printed abdominal aortic aneurysm phantom for image guided surgical planning with a patient specific fenestrated endovascular graft system

    Science.gov (United States)

    Meess, Karen M.; Izzo, Richard L.; Dryjski, Maciej L.; Curl, Richard E.; Harris, Linda M.; Springer, Michael; Siddiqui, Adnan H.; Rudin, Stephen; Ionita, Ciprian N.

    2017-03-01

    Following new trends in precision medicine, Juxatarenal Abdominal Aortic Aneurysm (JAAA) treatment has been enabled by using patient-specific fenestrated endovascular grafts. The X-ray guided procedure requires precise orientation of multiple modular endografts within the arteries confirmed via radiopaque markers. Patient-specific 3D printed phantoms could familiarize physicians with complex procedures and new devices in a risk-free simulation environment to avoid periprocedural complications and improve training. Using the Vascular Modeling Toolkit (VMTK), 3D Data from a CTA imaging of a patient scheduled for Fenestrated EndoVascular Aortic Repair (FEVAR) was segmented to isolate the aortic lumen, thrombus, and calcifications. A stereolithographic mesh (STL) was generated and then modified in Autodesk MeshMixer for fabrication via a Stratasys Eden 260 printer in a flexible photopolymer to simulate arterial compliance. Fluoroscopic guided simulation of the patient-specific FEVAR procedure was performed by interventionists using all demonstration endografts and accessory devices. Analysis compared treatment strategy between the planned procedure, the simulation procedure, and the patient procedure using a derived scoring scheme. Results: With training on the patient-specific 3D printed AAA phantom, the clinical team optimized their procedural strategy. Anatomical landmarks and all devices were visible under x-ray during the simulation mimicking the clinical environment. The actual patient procedure went without complications. Conclusions: With advances in 3D printing, fabrication of patient specific AAA phantoms is possible. Simulation with 3D printed phantoms shows potential to inform clinical interventional procedures in addition to CTA diagnostic imaging.

  19. TGFβ (Transforming Growth Factor-β) Blockade Induces a Human-Like Disease in a Nondissecting Mouse Model of Abdominal Aortic Aneurysm.

    Science.gov (United States)

    Lareyre, Fabien; Clément, Marc; Raffort, Juliette; Pohlod, Stefanie; Patel, Meghana; Esposito, Bruno; Master, Leanne; Finigan, Alison; Vandestienne, Marie; Stergiopulos, Nikolaos; Taleb, Soraya; Trachet, Bram; Mallat, Ziad

    2017-11-01

    Current experimental models of abdominal aortic aneurysm (AAA) do not accurately reproduce the major features of human AAA. We hypothesized that blockade of TGFβ (transforming growth factor-β) activity-a guardian of vascular integrity and immune homeostasis-would impair vascular healing in models of nondissecting AAA and would lead to sustained aneurysmal growth until rupture. Here, we test this hypothesis in the elastase-induced AAA model in mice. We analyze AAA development and progression using ultrasound in vivo, synchrotron-based ultrahigh resolution imaging ex vivo, and a combination of biological, histological, and flow cytometry-based cellular and molecular approaches in vitro. Systemic blockade of TGFβ using a monoclonal antibody induces a transition from a self-contained aortic dilatation to a model of sustained aneurysmal growth, associated with the formation of an intraluminal thrombus. AAA growth is associated with wall disruption but no medial dissection and culminates in fatal transmural aortic wall rupture. TGFβ blockade enhances leukocyte infiltration both in the aortic wall and the intraluminal thrombus and aggravates extracellular matrix degradation. Early blockade of IL-1β or monocyte-dependent responses substantially limits AAA severity. However, blockade of IL-1β after disease initiation has no effect on AAA progression to rupture. Endogenous TGFβ activity is required for the healing of AAA. TGFβ blockade may be harnessed to generate new models of AAA with better relevance to the human disease. We expect that the new models will improve our understanding of the pathophysiology of AAA and will be useful in the identification of new therapeutic targets. © 2017 American Heart Association, Inc.

  20. Development of an abdominal aortic aneurysm model for stent-graft insertion

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Tae Hyung; Lee, Jong Heon; Shin, Dong Ik; Sung, Kyu Bo; Ko, Gi Young; Lim, Jin Oh [College of Medicine, Univ. of Ulsan, Seoul (Korea, Republic of); Kim, Si Hoon [S and G Biotech Research Institute, Seoul (Korea, Republic of)

    2002-03-01

    To determine the efficacy of an abdominal aortic aneurysm model for stent-graft placement. The model consists of two parts, the heart and the vascular system. A peristaltic pump and a solenoid valve were used to simulate a pulsatile flow from the heart. A ball-shaped piece of clay was placed inside a square box and liquid silicone was poured. After the silicone was formed, the clay was removed and a silicone tube was used to connect the heart model and the aneurysm model. The silicone tube was also used to simulate the iliac arteries and one end of the artery was clampled and the other one was extended to water bath. Water at 37 .deg. C was circulated through the model, and the pressure at the thoracic aorta, aneurysm and iliac artery was measured with the outlet valve opening at 25, 50, and 100% before and after stent-graft placement. The liquid pressure measurements were 253/252, 271/162 and 264/166 mmHg at the thoracic aorta, aneurysm and iliac artery, respectively, when the outlet was 100% open. They were 173/121, 145/99, 145/106 mmHg when the outlet was 50% open, and 35/28, 61/44, 24/22 mmHg when it was 25% open. After placement of the stent-graft, the pressure measurements were 170/128, and 167/128 mmHg, respectively. Since it was easy to produce, the model was useful for in-vitro stent-graft testing, and a wide range of pressure could be applied.

  1. Modified conduit preparation creates a pseudosinus in an aortic valve-sparing procedure for aneurysm of the ascending aorta.

    Science.gov (United States)

    Cochran, R P; Kunzelman, K S; Eddy, A C; Hofer, B O; Verrier, E D

    1995-06-01

    no evidence of congestive symptoms. One patient who had extensive thoracoabdominal aneurysmal disease has undergone subsequent replacement of the descending aorta to the level of the renal arteries and has done well. Aortic valve-sparing replacement of the aortic root is an excellent procedure for any patient with an ascending aortic aneurysm and an anatomically salvageable valve. We believe that by modifying the proximal conduit and creating a "pseudosinus" into which the leaflets can retract without contact of the cylindrical conduit we may increase the longevity of the native aortic valve in this procedure.

  2. Two cases of false aneurysm rupture induced by nonvascular tumor

    International Nuclear Information System (INIS)

    Nakamura, Hiromasa; Komiya, Tatsuhiko; Tamura, Nobushige; Sakaguchi, Genichi; Kobayashi, Taira; Furukawa, Tomokuni; Matsushita, Akihito; Sunagawa, Gengo; Murashita, Takashi

    2008-01-01

    We presented here 2 cases of rare nonvascular tumor involving the aorta. A 69-year-old woman. She presented leg edema and dyspnea on admission. Computed tomography revealed abdominal aortic aneurysm perforating left common iliac vein. Abdominal aortic aneurysm replacement and fistula closure were done on an emergency basis. Immunohistologic examination revealed that malignant mesothelioma invaded the aortic wall. A 47-year-old woman presented with dyspnea. Enhanced computed tomography revealed rupture of the descending aortic aneurysm (saccular type). Aortic replacement was done on an emergency basis. One year after the operation, computed tomography revealed a giant mass (160 x 70 mm) surrounding the descending thoracic aorta. On biopsy, malignant schwannoma was found to invade the descending aorta. Sometimes nonvascular tumors form aneurysms. So we should be careful in diagnosis before operation. (author)

  3. Atmospheric pressure variations and abdominal aortic aneurysm rupture.

    LENUS (Irish Health Repository)

    Killeen, S D

    2012-02-03

    BACKGROUND: Ruptured abdominal aortic aneurysm (RAAA) presents with increased frequency in the winter and spring months. Seasonal changes in atmospheric pressure mirrors this pattern. AIM: To establish if there was a seasonal variation in the occurrence of RAAA and to determine if there was any association with atmospheric pressure changes. METHODS: A retrospective cohort-based study was performed. Daily atmospheric pressure readings for the region were obtained. RESULTS: There was a statistically significant monthly variation in RAAA presentation with 107 cases (52.5%) occurring from November to March. The monthly number of RAAA and the mean atmospheric pressure in the previous month were inversely related (r = -0.752, r (2) = 0.566, P = 0.03), and there was significantly greater daily atmospheric pressure variability on days when patients with RAAA were admitted. CONCLUSION: These findings suggest a relationship between atmospheric pressure and RAAA.

  4. Animal Models Used to Explore Abdominal Aortic Aneurysms

    DEFF Research Database (Denmark)

    Lysgaard Poulsen, J; Stubbe, J; Lindholt, J S

    2016-01-01

    OBJECTIVE: Experimental animal models have been used to investigate the formation, development, and progression of abdominal aortic aneurysms (AAAs) for decades. New models are constantly being developed to imitate the mechanisms of human AAAs and to identify treatments that are less risky than...... those used today. However, to the authors' knowledge, there is no model identical to the human AAA. The objective of this systematic review was to assess the different types of animal models used to investigate the development, progression, and treatment of AAA and to highlight their advantages...... and limitations. METHODS: A search protocol was used to perform a systematic literature search of PubMed and Embase. A total of 2,830 records were identified. After selection of the relevant articles, 564 papers on animal AAA models were included. RESULTS: The most common models in rodents, including elastase...

  5. Perfusion computed tomography imaging of abdominal aortic aneurysms may be of value for patient specific rupture risk estimation.

    Science.gov (United States)

    Kontopodis, Nikolaos; Galanakis, Nikolaos; Tsetis, Dimitrios; Ioannou, Christos V

    2017-04-01

    Abdominal aortic aneurysm (AAA) continues to pose a significant cause of unexpected mortality in the developed countries with its incidence constantly rising. The indication of elective surgical repair is currently based on the maximum diameter and growth rate criteria which represent an oversimplification of the Law of Laplace stating that the stress exerted in a cylinder or sphere is proportional to its radius. These criteria fail to capture the complex pathophysiology of the aneurismal disease thus often leading to therapeutic inaccuracies (treating large AAAs with a very low actual rupture risk while observing smaller ones with a much greater risk). Aneurysmal disease is mainly a degenerative process leading to loss of structural integrity of the diseased aortic wall which cannot withhold the stresses due to systemic pressurization. Moreover aortic wall degeneration has been shown to be a localized phenomenon and rupture depends on the pointwise comparison of strength and stress rather than a global aortic wall weakening. Ex-vivo mechanical studies have related vessel wall hypoxia to loss of structural endurance and reduced wall strength. Therefore a module to capture in vivo variation of aortic wall blood supply and oxygenation would be of value for the evaluation of AAA rupture risk. Perfusion computed tomography (PCT) imaging represents a novel technique which has been already used to estimate tissue vascularity in several clinical conditions but not aneurismal disease. We hypothesize that PCT could be used as an adjunct tool during AAA diagnostics in order to evaluate aortic wall oxygenation in vivo, therefore providing a possible means to identify weak spots making the lesion amenable to rupture. Copyright © 2017 Elsevier Ltd. All rights reserved.

  6. Personalised External Aortic Root Support (PEARS Compared with Alternatives for People with Life-Threatening Genetically Determined Aneurysms of the Aortic Root

    Directory of Open Access Journals (Sweden)

    Tom Treasure

    2015-01-01

    Full Text Available Personalised external aortic support was first proposed in 2000 by Tal Golesworthy, an engineer with familial Marfan syndrome and an aortic root aneurysm. After putting together a research and development team, and finding a surgeon to take on the challenge to join him in this innovative approach, he was central to the manufacture of the device, custom made for his own aorta. He was the patient for the ‘first in man’ operation in 2004. Ten years later he is well and 45 other people have had their own personalised device implanted. In this account, the stepwise record of proof of principle, comparative quantification of the surgical and perioperative requirements, 10 years of results, and development and research plans for the future are presented.

  7. Utilization of the National Inpatient Sample for abdominal aortic aneurysm research.

    Science.gov (United States)

    Dua, Anahita; Ali, Fadwa; Traudt, Elizabeth; Desai, Sapan S

    2017-10-01

    Large administrative databases, including the Medicare database by the Centers for Medicare and Medicaid Services, the National Surgical Quality Improvement Project database sponsored by the American College of Surgeons, and the National Inpatient Sample, have been used by major public health agencies for years. More recently, medical researchers have turned to database research to power studies on diseases that are noted to be relatively scarce. This study aimed to review and discuss the utilization of the National Inpatient Sample for abdominal aortic aneurysm research, inclusive of its advantages, disadvantages, and best practices. Copyright © 2017 Elsevier Inc. All rights reserved.

  8. Ten-Year Follow-Up of Endovascular Aneurysm Treatment with Talent Stent-Grafts

    International Nuclear Information System (INIS)

    Pitton, Michael B.; Scheschkowski, Tobias; Ring, Markus; Herber, Sascha; Oberholzer, Katja; Leicher-Dueber, Annegret; Neufang, Achim; Schmiedt, Walther; Dueber, Christoph

    2009-01-01

    The purpose of this study was to evaluate the clinical results, complications, and secondary interventions during long-term follow-up after endovascular aneurysm repair (EVAR) and to investigate the impact of endoleak sizes on aneurysm shrinkage. From 1997 to March 2007, 127 patients (12 female, 115 male; age, 73.0 ± 7.2 years) with abdominal aortic aneurysms were treated with Talent stent-grafts. Follow-up included clinical visits, contrast-enhanced MDCT, and radiographs at 3, 6, and 12 months and then annually. Results were analyzed with respect to clinical outcome, secondary interventions, endoleak rate and management, and change in aneurysm size. There was no need for primary conversion surgery. Thirty-day mortality was 1.6% (two myocardial infarctions). Procedure-related morbidity was 2.4% (paraplegia, partial infarction of one kidney, and inguinal bleeding requiring surgery). Mean follow-up was 47.7 ± 34.2 months (range, 0-123 months). Thirty-nine patients died during follow-up; three of the deaths were related to aneurysm (aneurysm rupture due to endoleak, n = 1; secondary surgical reintervention n = 2). During follow-up, a total of 29 secondary procedures were performed in 19 patients, including 14 percutaneous procedures (10 patients) and 15 surgical procedures (12 patients), including 4 cases with late conversion to open aortic repair (stent-graft infection, n = 1; migration, endoleak, or endotension, n = 3). Overall mean survival was 84.5 ± 4.7 months. Mean survival and freedom from any event was 66.7 ± 4.5 months. MRI depicted significantly more endoleaks compared to MDCT (23.5% vs. 14.3%; P 10% of the aneurysm area were associated with reduced aneurysm shrinkage compared to no endoleaks or <10% endoleaks (Δ at 3 years, -1.8% vs. -12.0%; P < 0.05). In conclusion, endovascular aneurysm treatment with Talent stent-grafts demonstrated encouraging long-term results with moderate secondary intervention rates. Primary occlusion of all aortic side

  9. Early Enlargement of Aneurysmal Sac and Separation of EndoBags of Nellix Endovascular Aneurysm Sealing System as Signs of Increased Risk of Later Aneurysm Rupture

    Energy Technology Data Exchange (ETDEWEB)

    Cheng, Lik Fai, E-mail: rickieclf@yahoo.com.hk [Princess Margaret Hospital, Department of Radiology (China); Cheung, Kwok Fai; Chan, Kwong Man [Princess Margaret Hospital, Department of Surgery (China); Ma, Johnny Ka Fai; Luk, Wing Hang [Princess Margaret Hospital, Department of Radiology (China); Chan, Micah Chi King [Princess Margaret Hospital, Department of Surgery (China); Ng, Carol Wing Kei; Mahboobani, Neeraj Ramesh [Princess Margaret Hospital, Department of Radiology (China); Ng, Wai Kin [Princess Margaret Hospital, Department of Surgery (China); Wong, Ting [Princess Margaret Hospital, Department of Radiology (China)

    2016-11-15

    Nellix Endovascular Aneurysm Sealing (EVAS) system is a new concept and technology of abdominal aortic aneurysm (AAA) repair. Elective EVAS using Nellix device was performed for a 83-year-old man with AAA. 2-month post-EVAS CTA surveillance demonstrated mild enlargement of aneurysmal sac and separation of the EndoBags, but without detectable endoleak. The patient developed sudden AAA rupture with retroperitoneal hematoma at about 4 months after EVAS. We postulated that early enlargement of aneurysmal sac and separation of EndoBags of Nellix devices after EVAS, even without detectable endoleak, might indicate significant aneurysmal wall weakening with increased risk of later AAA rupture. To the best of the authors’ knowledge, this was the first reported case of aortic rupture after EVAS without detectable endoleak during and after the procedure.

  10. Early Enlargement of Aneurysmal Sac and Separation of EndoBags of Nellix Endovascular Aneurysm Sealing System as Signs of Increased Risk of Later Aneurysm Rupture

    International Nuclear Information System (INIS)

    Cheng, Lik Fai; Cheung, Kwok Fai; Chan, Kwong Man; Ma, Johnny Ka Fai; Luk, Wing Hang; Chan, Micah Chi King; Ng, Carol Wing Kei; Mahboobani, Neeraj Ramesh; Ng, Wai Kin; Wong, Ting

    2016-01-01

    Nellix Endovascular Aneurysm Sealing (EVAS) system is a new concept and technology of abdominal aortic aneurysm (AAA) repair. Elective EVAS using Nellix device was performed for a 83-year-old man with AAA. 2-month post-EVAS CTA surveillance demonstrated mild enlargement of aneurysmal sac and separation of the EndoBags, but without detectable endoleak. The patient developed sudden AAA rupture with retroperitoneal hematoma at about 4 months after EVAS. We postulated that early enlargement of aneurysmal sac and separation of EndoBags of Nellix devices after EVAS, even without detectable endoleak, might indicate significant aneurysmal wall weakening with increased risk of later AAA rupture. To the best of the authors’ knowledge, this was the first reported case of aortic rupture after EVAS without detectable endoleak during and after the procedure.

  11. High prevalence of intracranial aneurysms in patients with aortic dissection or aneurysm: feasibility of extended aorta CT angiography with involvement of intracranial arteries.

    Science.gov (United States)

    Lee, Dahye; Ahn, Sung Jun; Cho, Eun-Suk; Kim, Yong Bae; Song, Suk-Won; Jung, Woo Sang; Suh, Sang Hyun

    2017-10-01

    Previous studies have suggested a higher prevalence of intracranial aneurysms (IAs) in patients with aortic aneurysms (AAs). To carry out a preliminary study to evaluate the prevalence of IAs in these patients and the diagnostic feasibility of extended aorta CT angiography (CTA), including intracranial arteries as well as the aorta. We retrospectively reviewed all patients with a clinical diagnosis of AA or aortic dissection (AD) who had undergone aorta CTA as well as MR angiography, CTA, and/or DSA of the brain between 2009 and 2014. Since 2012, the extended aorta CTA protocol has been applied in these patients. Characteristics of IAs were classified with baseline clinical data. For quantitative and qualitative assessment by two independent raters, brain images obtained by extended aorta CTA and brain CTA were compared. The radiation dose of the two aorta protocols was compared. The prevalence of IA was 22.2% (35/158). All IAs were detected by extended aorta CTA, except one small aneurysm (product of the extended aorta CTA increased with increment of the scan range (p=0.048). With a high prevalence of IAs in patients with ADs or AAs, extended aorta CTA could be used to evaluate aorta disease and IA in a single session. However, further prospective studies are needed to prove efficacy and safety of the extended aorta CTA protocol in patients with AAs or ADs. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

  12. Automatic determination of the dynamic geometry of abdominal aortic aneurysm from MR with application to wall stress simulations

    NARCIS (Netherlands)

    Putter, de S.; Breeuwer, M.; Kose, U.; Vosse, van de F.N.; Gerritsen, F.A.; Lemke, H.U.

    2005-01-01

    The current surgical intervention criterion for abdominal aortic aneurysm is based on the maximum transverse diameter of the aorta. Recent research advances indicate that a better rupture predictor may be derived from the wall stress, which can be computed with the finite element method. An

  13. Meta-Analysis of Genome-Wide Association Studies for Abdominal Aortic Aneurysm Identifies Four New Disease-Specific Risk Loci

    NARCIS (Netherlands)

    Jones, G.T.; Tromp, G.; Kuivaniemi, H.; Gretarsdottir, S.; Baas, A.F.; Giusti, B.; Strauss, E.; Hof, F.N. van 't; Webb, T.R.; Erdman, R.; Ritchie, M.D.; Elmore, J.R.; Verma, A.; Pendergrass, S.; Kullo, I.J.; Ye, Z.; Peissig, P.L.; Gottesman, O.; Verma, S.S.; Malinowski, J.; Rasmussen-Torvik, L.J.; Borthwick, K.M.; Smelser, D.T.; Crosslin, D.R.; Andrade, M. de; Ryer, E.J.; McCarty, C.A.; Bottinger, E.P.; Pacheco, J.A.; Crawford, D.C.; Carrell, D.S.; Gerhard, G.S.; Franklin, D.P.; Carey, D.J.; Phillips, V.L.; Williams, M.J.; Wei, W.; Blair, R.; Hill, A.A.; Vasudevan, T.M.; Lewis, D.R.; Thomson, I.A.; Krysa, J.; Hill, G.B.; Roake, J.; Merriman, T.R.; Oszkinis, G.; Galora, S.; Saracini, C.; Abbate, R.; Pulli, R.; Pratesi, C.; Saratzis, A.; Verissimo, A.R.; Bumpstead, S.; Badger, S.A.; Clough, R.E.; Cockerill, G.; Hafez, H.; Scott, D.J.; Futers, T.S.; Romaine, S.P.; Bridge, K.; Griffin, K.J.; Bailey, M.A.; Smith, A.; Thompson, M.M.; Bockxmeer, F.M. van; Matthiasson, S.E.; Thorleifsson, G.; Thorsteinsdottir, U.; Blankensteijn, J.D.; Teijink, J.A.; Wijmenga, C.; Graaf, J. de; Kiemeney, L.A.L.M.; Lindholt, J.S.; Hughes, A.; Bradley, D.T.; Stirrups, K.; Golledge, J.; Norman, P.E.; Powell, J.T.; Humphries, S.E.; Hamby, S.E.; Goodall, A.H.; Nelson, C.P.; Sakalihasan, N.; Courtois, A.; Ferrell, R.E.; Eriksson, P.; Folkersen, L.; Franco-Cereceda, A.; Eicher, J.D.; Johnson, A.D.; Betsholtz, C.; Ruusalepp, A.; Franzen, O.; Schadt, E.E.; Bjorkegren, J.L.; et al.,

    2017-01-01

    RATIONALE: Abdominal aortic aneurysm (AAA) is a complex disease with both genetic and environmental risk factors. Together, 6 previously identified risk loci only explain a small proportion of the heritability of AAA. OBJECTIVE: To identify additional AAA risk loci using data from all available

  14. [Bacteremia associated with mycotic aneurysm of the transversal aortic arch and myocarditis caused by Salmonella enteritidis].

    Science.gov (United States)

    Martínez-Martínez, L; Mesa, E; Rodríguez, J E; Sánchez, M P; Ugarte, J; Algora Weber, A; Dámaso, D; Daza, R M; Mendaza, P

    1989-02-01

    A 60-year-old male with diabetes mellitus had Salmonella enteritidis bacteremia associated with mycotic aneurysm of the transverse aortic arc and myocarditis. Antibiotic therapy with ampicillin and chloramphenicol was ineffective despite the fact that the microorganism was sensitive in vitro to those antimicrobials, and the patient had a progressive clinical deterioration which culminated in death.

  15. Transperitoneal versus retroperitoneal approach for open abdominal aortic aneurysm repair in the targeted vascular National Surgical Quality Improvement Program

    NARCIS (Netherlands)

    Buck, Dominique B.; Ultee, Klaas H J; Zettervall, Sara L.; Soden, Pete A.; Darling, Jeremy; Wyers, Mark; van Herwaarden, Joost A.; Schermerhorn, Marc L.

    Objective: We sought to compare current practices in patient selection and 30-day outcomes for transperitoneal and retroperitoneal abdominal aortic aneurysm (AAA) repairs. Methods: All patients undergoing elective transperitoneal or retroperitoneal surgical repair for AAA between January 2011 and

  16. Left atrium and pulmonary artery compression due to aortic aneurysm causing heart failure symptoms.

    Science.gov (United States)

    Jorge, Antonio José Lagoeiro; Martins, Wolney de Andrade; Moutinho, Victor M; Rezende, Juliano M; Alves, Patricia Y; Villacorta, Humberto; Silveira, Pedro F; Couto, Antonio A

    2018-05-09

    Patients with thoracic aortic aneurysm (TAA) are mostly asymptomatic and TAA is rarely related to heart failure (HF). We report the case of an 80-year-old female patient, with type A TAA without dissection, with right pulmonary artery and left atrium compression, who presented with HF, preserved ejection fraction and acute pulmonary edema. Copyright © 2018 Sociedade Portuguesa de Cardiologia. Publicado por Elsevier España, S.L.U. All rights reserved.

  17. Spontaneous perforation of a syphilitic aneurysm of the aortic arch into the pulmonary artery

    International Nuclear Information System (INIS)

    Stampfel, G.

    1983-01-01

    An aortopulmonary fistula in case of a bag-shaped aneurysm of the aortic arch is demonstrated via angiography. A diagnosis to the effect that the existence of this phenomenon is suspected, can already be arrived at when examining the plain radiography of the thorax. We can say that a sign of an aortopulmonary fistula is represented, in case of an aneurysm of the aorta ascendens and of the arcus aortae, by the existence of a left-right shunt with hypercirculation in the pulmonary circulation, in most cases also signs of right ventricular insufficiency. This is often combined with a typical previous history of sudden dyspnoeas and thoracic pain. The article points out the theoretical possibility of balloon catheter occlusion of the fistula to relieve the acute right ventricular load. (orig.) [de

  18. Supra-aortic interventions for endovascular exclusion of the entire aortic arch.

    Science.gov (United States)

    Andrási, Terézia B; Grossmann, Marius; Zenker, Dieter; Danner, Bernhard C; Schöndube, Friedrich A

    2017-07-01

    Our aim was to analyze the outcomes of endovascular exclusion of the entire aortic arch (proximal landing in zone 0, distal landing in zone III or beyond, after Ishimaru) in which complete surgical debranching of the supra-aortic vessels (I), endovascular supra-aortic revascularization (chimney, fenestrated, or branched grafts) with partial surgical debranching (II), or total endovascular supra-aortic revascularization (III) was additionally performed. Publications describing endovascular repair of the aortic arch (2000-2016) were systematically searched and reviewed. From a total of 53 relevant studies including 1853 patients, only 1021 patients undergoing 35 different total aortic arch procedures were found eligible for further evaluation and included in group I, II, or III (429, 190, and 402 patients, respectively). Overall early mortality was higher in group I vs groups II and III (P = .001; 1 - β = 95.6%) but exceeded in group III (18.6%) and group II (14.0%) vs group I (8.0%; P = .044; 1 - β = 57.4%) for diseases involving zone 0. Mortality was higher in all subgroups treated for zone 0 disease compared with corresponding subgroups treated for zone I to zone III disease. The incidence of cerebral ischemic events was increased in groups I and II vs group III (7.5% and 11% vs 1.7%; P = .0001) and correlated with early mortality (R 2  = .20; P = .033). The incidence of type II endoleaks and endovascular reintervention was similar between groups and correlated with each other (R 2  = .37; P = .004). Type Ia endoleak occurred more often in groups II and III than in group I (7.1% and 12.1% vs 5.8%; P = .023) and correlated with midterm mortality (R 2  = .53; P = .005). Retrograde type A dissection was low in all groups, whereas aneurysm growth was higher in group III (2.6%, 4.2%, 10.7%; P = .002), correlating with midterm mortality (R 2  = .311; P = .009). Surgical revision slightly correlated with surgical complications (R 2  = .18; P = .044

  19. Periprocedural and long-term outcomes of endovascular abdominal aortic aneurysm repair in cardiology practice.

    Science.gov (United States)

    Basoor, Abhijeet; Patel, Kiritkumar C; Halabi, Abdul R; Todorov, Mina; Senthilvadivel, Prashanth; Choksi, Nishit; Phan, Thanh; LaLonde, Thomas; Yamasaki, Hiroshi; DeGregorio, Michele

    2014-12-01

    Endovascular repair of abdominal aortic aneurysm (AAA) has recently been made a class I indication in the treatment of AAA. In comparison to the conventional open surgical treatment, endovascular AAA repair (EVAR) is associated with equivalent long-term morbidity and mortality rates. Vascular surgeons perform majority of EVAR. There are no reports for the long-term results of this intervention performed by interventional cardiologists. We present one of the first reports of periprocedural and long-term outcomes of EVAR performed by interventional cardiologists. Retrospective chart review on patients with attempted EVAR between September 2005 and January 2011 was performed. Included cases were all consecutive patients who had attempted EVAR by interventional cardiologists. During the study period EVAR was attempted in 170 patients, with 27% being women. The mean age was 74 years (range 52-93). The endovascular graft placement was successful in 96% (163/170) of patients. Procedure failures were more common in women (6 of 46 vs 1 of 124, P = 0.003). The 30-day mortality was 1.8 % (3 of 170). In patients with successful EVAR the mean follow-up was 30 months and mean length of hospital stay was 3.5 ± 3.2 days. Major periprocedural complications were noted in 9% patients (15 of 167). During follow-up, six patients (3.5%) required re-intervention and additional 16 patients died with no aneurysm related deaths. EVAR primarily performed by interventional cardiologists demonstrates high periprocedural and long-term success rates. A higher EVAR failure rate has been observed in women. © 2014 Wiley Periodicals, Inc.

  20. Is there a prospect for hybrid aortic arch surgery?

    Science.gov (United States)

    Bashir, Mohamad; Harky, Amer; Bilal, Haris

    2018-05-16

    The surge of endovascular repair of aortic aneurysm in current modern aortic surgery practice has been the key for surgical management of elective cases of thoracic aortic aneurysms. This has paved way for the combined hybrid approach to be amongst the armamentarium for the management of aortic arch disease. The pivotal understanding of the aortic arch natural history coupled with device technology advancement allowed surgeons insight into delivery of hybrid surgery with acceptable morbidity and mortality results. This review article provides current insights into hybrid technique of aortic arch aneurysm repair and the evidences behind its applicability to arch surgery. It is aimed to highlight the challenges encountered for this innovative approach and correlate its challenges to those that are met by the conventional open aortic arch repair.

  1. Anatomical Features and Early Outcomes of Endovascular Repair of Abdominal Aortic Aneurysm from a Korean Multicenter Registry.

    Science.gov (United States)

    Kwon, Hyunwook; Lee, Do Yun; Choi, Soo Jin Na; Park, Ki Hyuk; Min, Seung-Kee; Chang, Jeong-Hwan; Huh, Seung; Jeon, Yong Sun; Won, Jehwan; Byun, Seung Jae; Park, Sang Jun; Jang, Lee Chan; Kwon, Tae-Won

    2015-09-01

    To introduce a nation-based endovascular aneurysm repair (EVAR) registry in South Korea and to analyze the anatomical features and early clinical outcomes of abdominal aortic aneurysms (AAA) in patients who underwent EVAR. The Korean EVAR registry (KER) was a template-based online registry developed and established in 2009. The KER recruited 389 patients who underwent EVAR from 13 medical centers in South Korea from January 2010 to June 2010. We retrospectively reviewed the anatomic features and 30-day clinical outcomes. Initial deployment without open conversion was achieved in all cases and procedure-related 30-day mortality rate was 1.9%. Anatomic features showed the following variables: proximal aortic neck angle 48.8±25.7° (mean±standard deviation), vertical neck length 35.0±17.2 mm, aneurysmal sac diameter 57.2±14.2 mm, common iliac artery (CIA) involvement in 218 (56.3%) patients, and median right CIA length 34.9 mm. Two hundred and nineteen (56.3%) patients showed neck calcification, 98 patients (25.2%) had neck thrombus, and the inferior mesenteric arteries of 91 patients (23.4%) were occluded. Anatomical features of AAA in patients from the KER were characterized as having angulated proximal neck, tortuous iliac artery, and a higher rate of CIA involvement. Long-term follow-up and ongoing studies are required.

  2. Morphological and Biomechanical Differences in the Elastase and AngII apoE−/− Rodent Models of Abdominal Aortic Aneurysms

    Directory of Open Access Journals (Sweden)

    Evan H. Phillips

    2015-01-01

    Full Text Available An abdominal aortic aneurysm (AAA is a potentially fatal cardiovascular disease with multifactorial development and progression. Two preclinical models of the disease (elastase perfusion and angiotensin II infusion in apolipoprotein-E-deficient animals have been developed to study the disease during its initiation and progression. To date, most studies have used ex vivo methods to examine disease characteristics such as expanded aortic diameter or analytic methods to look at circulating biomarkers. Herein, we provide evidence from in vivo ultrasound studies of the temporal changes occurring in biomechanical parameters and macromolecules of the aortic wall in each model. We present findings from 28-day studies in elastase-perfused rats and AngII apoE−/− mice. While each model develops AAAs specific to their induction method, they both share characteristics with human aneurysms, such as marked changes in vessel strain and blood flow velocity. Histology and nonlinear microscopy confirmed that both elastin and collagen, both important extracellular matrix molecules, are similarly affected in their levels and spatial distribution. Future studies could make use of the differences between these models in order to investigate mechanisms of disease progression or evaluate potential AAA treatments.

  3. Long-Term Follow-Up After Endovascular Treatment of Acute Aortic Emergencies

    International Nuclear Information System (INIS)

    Pitton, M. B.; Herber, S.; Schmiedt, W.; Neufang, A.; Dorweiler, B.; Dueber, C.

    2008-01-01

    Purpose. To investigate the long-term outcome and efficacy of emergency treatment of acute aortic diseases with endovascular stent-grafts. Methods. From September 1995 to April 2007, 37 patients (21 men, 16 women; age 53.9 ± 19.2 years, range 18-85 years) with acute complications of diseases of the descending thoracic aorta were treated by endovascular stent-grafts: traumatic aortic ruptures (n = 9), aortobronchial fistulas due to penetrating ulcer or hematothorax (n = 6), acute type B dissections with aortic wall hematoma, penetration, or ischemia (n = 13), and symptomatic aneurysm of the thoracic aorta (n = 9) with pain, penetration, or rupture. Diagnosis was confirmed by contrast-enhanced CT. Multiplanar reformations were used for measurement of the landing zones of the stent-grafts. Stent-grafts were inserted via femoral or iliac cut-down. Two procedures required aortofemoral bypass grafting prior to stent-grafting due to extensive arteriosclerotic stenosis of the iliac arteries. In this case the bypass graft was used for introduction of the stent-graft. Results. A total of 46 stent-grafts were implanted: Vanguard/Stentor (n = 4), Talent (n = 31), and Valiant (n = 11). Stent-graft extension was necessary in 7 cases. In 3 cases primary graft extension was done during the initial procedure (in 1 case due to distal migration of the graft during stent release, in 2 cases due to the total length of the aortic aneurysm). In 4 cases secondary graft extensions were performed-for new aortic ulcers at the proximal stent struts (after 5 days) and distal to the graft (after 8 months) and recurrent aortobronchial fistulas 5 months and 9 years after the initial procedure-resulting in a total of 41 endovascular procedures. The 30-day mortality rate was 8% (3 of 37) and the overall follow-up was 29.9 ± 36.6 months (range 0-139 months). All patients with traumatic ruptures demonstrated an immediate sealing of bleeding. Patients with aortobronchial fistulas also demonstrated a

  4. Hybrid Repair of Complex Thoracic Aortic Arch Pathology: Long-Term Outcomes of Extra-anatomic Bypass Grafting of the Supra-aortic Trunk

    Energy Technology Data Exchange (ETDEWEB)

    Lotfi, S., E-mail: shamim.lotfi@kcl.ac.uk; Clough, R. E.; Ali, T. [Guy' s and St. Thomas' NHS Trust, Vascular Surgery (United Kingdom); Salter, R. [Guy' s and St. Thomas' NHS Trust, Interventional Radiology (United Kingdom); Young, C. P. [Guy' s and St. Thomas' NHS Trust, Cardiac Surgery (United Kingdom); Bell, R.; Modarai, B.; Taylor, P., E-mail: peter.taylor@gstt.nhs.uk [Guy' s and St. Thomas' NHS Trust, Vascular Surgery (United Kingdom)

    2013-02-15

    Hybrid repair constitutes supra-aortic debranching before thoracic endovascular aortic repair (TEVAR). It offers improved short-term outcome compared with open surgery; however, longer-term studies are required to assess patient outcomes and patency of the extra-anatomic bypass grafts. A prospectively maintained database of 380 elective and urgent patients who had undergone TEVAR (1997-2011) was analyzed retrospectively. Fifty-one patients (34 males; 17 females) underwent hybrid repair. Median age was 71 (range, 18-90) years with mean follow-up of 15 (range, 0-61) months. Perioperative complications included death: 10 % (5/51), stroke: 12 % (6/51), paraplegia: 6 % (3/51), endoleak: 16 % (8/51), rupture: 4 % (2/51), upper-limb ischemia: 2 % (1/51), bypass graft occlusion: 4 % (2/51), and cardiopulmonary complications in 14 % (7/51). Three patients (6 %) required emergency intervention for retrograde dissection: (2 aortic root repairs; 2 innominate stents). Early reintervention was performed for type 1 endoleak in two patients (2 proximal cuff extensions). One patient underwent innominate stenting and revision of their bypass for symptomatic restenosis. At 48 months, survival was 73 %. Endoleak was detected in three (6 %) patients (type 1 = 2; type 2 = 1) requiring debranching with proximal stent graft (n = 2) and proximal extension cuff (n = 1). One patient had a fatal rupture of a mycotic aneurysm and two arch aneurysms expanded. No bypass graft occluded after the perioperative period. Hybrid operations to treat aortic arch disease can be performed with results comparable to open surgery. The longer-term outcomes demonstrate low rates of reintervention and high rates of graft patency.

  5. Hybrid Repair of Complex Thoracic Aortic Arch Pathology: Long-Term Outcomes of Extra-anatomic Bypass Grafting of the Supra-aortic Trunk

    International Nuclear Information System (INIS)

    Lotfi, S.; Clough, R. E.; Ali, T.; Salter, R.; Young, C. P.; Bell, R.; Modarai, B.; Taylor, P.

    2013-01-01

    Hybrid repair constitutes supra-aortic debranching before thoracic endovascular aortic repair (TEVAR). It offers improved short-term outcome compared with open surgery; however, longer-term studies are required to assess patient outcomes and patency of the extra-anatomic bypass grafts. A prospectively maintained database of 380 elective and urgent patients who had undergone TEVAR (1997–2011) was analyzed retrospectively. Fifty-one patients (34 males; 17 females) underwent hybrid repair. Median age was 71 (range, 18–90) years with mean follow-up of 15 (range, 0–61) months. Perioperative complications included death: 10 % (5/51), stroke: 12 % (6/51), paraplegia: 6 % (3/51), endoleak: 16 % (8/51), rupture: 4 % (2/51), upper-limb ischemia: 2 % (1/51), bypass graft occlusion: 4 % (2/51), and cardiopulmonary complications in 14 % (7/51). Three patients (6 %) required emergency intervention for retrograde dissection: (2 aortic root repairs; 2 innominate stents). Early reintervention was performed for type 1 endoleak in two patients (2 proximal cuff extensions). One patient underwent innominate stenting and revision of their bypass for symptomatic restenosis. At 48 months, survival was 73 %. Endoleak was detected in three (6 %) patients (type 1 = 2; type 2 = 1) requiring debranching with proximal stent graft (n = 2) and proximal extension cuff (n = 1). One patient had a fatal rupture of a mycotic aneurysm and two arch aneurysms expanded. No bypass graft occluded after the perioperative period. Hybrid operations to treat aortic arch disease can be performed with results comparable to open surgery. The longer-term outcomes demonstrate low rates of reintervention and high rates of graft patency.

  6. Sinus of Valsalva aneurysm and bicuspid aortic valve: detection and mechanism by cardiac magnetic resonance imaging

    Directory of Open Access Journals (Sweden)

    Jen Li Looi

    2011-09-01

    Full Text Available Cardiac magnetic resonance imaging (CMR demonstrated a sinus of Valsalva aneurysm (SVA with severe dilatation of the right coronary sinus in association with a congenital bicuspid aortic valve (BAV and subaortic membrane. The SVA had not been apparent on echocardiography as the dilatation was outside standard echo image planes. On both CMR and echo, blood flow was eccentrically directed into the right coronary sinus by the domed posterior leaflet of the BAV. The impact of the aortic jet on the wall of the right coronary sinus is probably important in the aetiology of the sinus dilatation. CMR proved valuable in demonstrating the SVA and understanding its aetiology.

  7. Sinus of Valsalva aneurysm and bicuspid aortic valve: detection and mechanism by cardiac magnetic resonance imaging

    Directory of Open Access Journals (Sweden)

    Jen Li Looi

    2011-10-01

    Full Text Available Cardiac magnetic resonance imaging (CMR demonstrated a sinus of Valsalva aneurysm (SVA with severe dilatation of the right coronary sinus in association with a congenital bicuspid aortic valve (BAV and subaortic membrane. The SVA had not been apparent on echocardiography as the dilatation was outside standard echo image planes. On both CMR and echo, blood flow was eccentrically directed into the right coronary sinus by the domed posterior leaflet of the BAV. The impact of the aortic jet on the wall of the right coronary sinus is probably important in the aetiology of the sinus dilatation. CMR proved valuable in demonstrating the SVA and understanding its aetiology.

  8. Prevalence of abdominal aortic aneurysm (AAA) in a population undergoing computed tomography colonography in Canterbury, New Zealand.

    Science.gov (United States)

    Khashram, M; Jones, G T; Roake, J A

    2015-08-01

    There is compelling level 1 evidence in support of screening men for abdominal aortic aneurysm (AAA) to reduce AAA mortality. However, New Zealand (NZ) lacks data on AAA prevalence, and national screening has not been implemented. The aim of this study was to determine the prevalence of AAA in a population undergoing a computed tomography colonography (CTC) for gastrointestinal symptoms. This was an observational study; all consecutive CTCs performed in three regions of the South Island of NZ over a 4 year period were reviewed. Data on abdominal and thoracic aorta diameters ≥30 mm, and iliac and femoral aneurysms ≥20 mm were recorded. Previous aortic surgical grafts or endovascular stents were also documented. Demographics, survival, and AAA related outcomes were collected and used for analysis. Included were 4,893 scans on 4,644 patients (1,933 men [41.6%], 2,711 women [58.4%]) with a median age of 69.3 years (range 17.0-97.0 years). There were 309 scans on 289 patients (75.4% men) who had either an aneurysm or a previous aortic graft with a median age of 79.6 years (range 57.0-96.0 years). Of these, 223 had a native AAA ≥30 mm. The prevalence of AAA rose with age from 1.3% in men aged 55-64 years, to 9.1% in 65-74 year olds, 16.8% in 75-84 year olds, and 22.0% in ≥85 year olds. The corresponding figures in women were 0.4%, 2%, 3.9%, and 6.2%, respectively. In this observational study, the prevalence of AAA was high and warrants further evaluation. The results acquired help to define a population that may benefit from a national AAA screening programme. Copyright © 2015 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.

  9. Reoperative Aortic Root Replacement in Patients with Previous Aortic Root or Aortic Valve Procedures

    Directory of Open Access Journals (Sweden)

    Byung Kwon Chong

    2016-08-01

    Full Text Available Background: Generalization of standardized surgical techniques to treat aortic valve (AV and aortic root diseases has benefited large numbers of patients. As a consequence of the proliferation of patients receiving aortic root surgeries, surgeons are more frequently challenged by reoperative aortic root procedures. The aim of this study was to evaluate the outcomes of redo-aortic root replacement (ARR. Methods: We retrospectively reviewed 66 patients (36 male; mean age, 44.5±9.5 years who underwent redo-ARR following AV or aortic root procedures between April 1995 and June 2015. Results: Emergency surgeries comprised 43.9% (n=29. Indications for the redo-ARR were aneurysm (n=12, pseudoaneurysm (n=1, or dissection (n=6 of the residual native aortic sinus in 19 patients (28.8%, native AV dysfunction in 8 patients (12.1%, structural dysfunction of an implanted bioprosthetic AV in 19 patients (28.8%, and infection of previously replaced AV or proximal aortic grafts in 30 patients (45.5%. There were 3 early deaths (4.5%. During follow- up (median, 54.65 months; quartile 1–3, 17.93 to 95.71 months, there were 14 late deaths (21.2%, and 9 valve-related complications including reoperation of the aortic root in 1 patient, infective endocarditis in 3 patients, and hemorrhagic events in 5 patients. Overall survival and event-free survival rates at 5 years were 81.5%±5.1% and 76.4%±5.4%, respectively. Conclusion: Despite technical challenges and a high rate of emergency conditions in patients requiring redo-ARR, early and late outcomes were acceptable in these patients.

  10. Pathogenic sequence for dissecting aneurysm formation in a hypomorphic polycystic kidney disease 1 mouse model

    NARCIS (Netherlands)

    Hassane, S.; Claij, N.; Lantinga-van Leeuwen, I.S.; Munsteren, J.C. van; Lent, N. van; Hanemaaijer, R.; Breuning, M.H.; Peters, D.J.M.; Ruiter, M.C. de

    2007-01-01

    OBJECTIVE - Autosomal Dominant Polycystic Kidney Disease (ADPKD) is a multi-system disorder characterized by progressive cyst formation in the kidneys. Serious complications of ADPKD are intracranial and aortic aneurysms. The condition is mainly caused by mutations in the PKD1 or PKD2 gene. We have

  11. Computational predictions of damage propagation preceding dissection of ascending thoracic aortic aneurysms.

    Science.gov (United States)

    Mousavi, S Jamaleddin; Farzaneh, Solmaz; Avril, Stéphane

    2018-04-01

    Dissections of ascending thoracic aortic aneurysms (ATAAs) cause significant morbidity and mortality worldwide. They occur when a tear in the intima-media of the aorta permits the penetration of the blood and the subsequent delamination and separation of the wall in 2 layers, forming a false channel. To predict computationally the risk of tear formation, stress analyses should be performed layer-specifically and they should consider internal or residual stresses that exist in the tissue. In the present paper, we propose a novel layer-specific damage model based on the constrained mixture theory, which intrinsically takes into account these internal stresses and can predict appropriately the tear formation. The model is implemented in finite-element commercial software Abaqus coupled with user material subroutine. Its capability is tested by applying it to the simulation of different exemplary situations, going from in vitro bulge inflation experiments on aortic samples to in vivo overpressurizing of patient-specific ATAAs. The simulations reveal that damage correctly starts from the intimal layer (luminal side) and propagates across the media as a tear but never hits the adventitia. This scenario is typically the first stage of development of an acute dissection, which is predicted for pressures of about 2.5 times the diastolic pressure by the model after calibrating the parameters against experimental data performed on collected ATAA samples. Further validations on a larger cohort of patients should hopefully confirm the potential of the model in predicting patient-specific damage evolution and possible risk of dissection during aneurysm growth for clinical applications. Copyright © 2017 John Wiley & Sons, Ltd.

  12. Alginate oligosaccharide indirectly affects toll-like receptor signaling via the inhibition of microRNA-29b in aneurysm patients after endovascular aortic repair

    Directory of Open Access Journals (Sweden)

    Yang Y

    2017-09-01

    Full Text Available Yong Yang,1–4,* Zhenhuan Ma,1–4,* Guokai Yang,1–4 Jia Wan,1–4 Guojian Li,1–4 Lingjuan Du,1–4 Ping Lu1–4 1Department of Vascular Surgery, The Second People’s Hospital of Yunnan Province, Kunming, China; 2Department of Vascular Surgery, The Fourth Affiliated Hospital of Kunming Medical University, Kunming, China; 3Department of Vascular Surgery, Vascular Surgery Centre in Yunnan Province, Kunming, China; 4Department of Vascular Surgery, Abdominal Surgery Centre in Yunnan Province, Kunming, China *These authors contributed equally to this work Abstract: Endovascular aortic repair (EVAR is often followed by aneurysm recurrence. Alginate oligosaccharide (AOS has potential antitumor properties as a natural product while the related mechanisms remain unclear. Toll-like receptor (TLR signaling is associated with inflammatory activity of aneurysm and may be affected by miR-29b. Thus, inhibitory function of AOS on aneurysms was explored by measuring the important molecules in TLR4 signaling. After EVAR, a total of 248 aortic aneurysm patients were recruited and randomly assigned into two groups: AOS group (AG, oral administration 10-mg AOS daily and control group (CG, placebo daily. The size of residual aneurysms, aneurysm recurrence, and side effects were investigated. Aneurysm recurrence was determined by Kaplan–Meier analysis. After 2 years, eight and two patients died in the CG and AG, respectively. The sizes of residual aneurysms were significantly larger in the CG than in the AG (P<0.05. The incidence of aneurysm recurrence was also significantly higher in the CG than in the AG (P<0.05. AOS treatment reduced the levels of miR-29b, TLR4, mitogen-activated protein kinase (MAPK, nuclear factor kappa B (NF-kappa B, interleukin 1 (IL-1 beta, and interleukin 6 (IL-6. Overexpression and silence of miR-29b increased and reduced the level of TLR4, phospho-p65 NF-kappa B, phospho-p38 MAPK, IL-1 beta, and IL-6. Spearman’s rank correlation

  13. Influence of endoleaks on aneurysm volume and hemodynamics after endovascular aneurysm repair

    International Nuclear Information System (INIS)

    Pitton, M.B.; Welter, B.; Schmenger, P.; Thelen, M.; Dueber, C.; Neufang, A.

    2003-01-01

    Purpose: To evaluate the aneurysm volume and the intra-aneurysmatic pressure and maximal pressure pulse (dp/dtmax) in completely excluded aneurysms and cases with endoleaks. Materials and Methods: In 36 mongrel dogs, experimental autologous aneurysms were treated with stent-grafts. All aortic side branches were ligated in 18 cases (group I) but were preserved in group II (n=18). Aneurysm volumes were calculated from CT scans before and after intervention, and from follow-up CT scans at 1 week, 6 weeks and 6 months. Finally, for hemodynamic measurements, manometer-tipped catheters were introduced into the excluded aneurysm sac (group I and II), selectively in endoleaks (group II), and intraluminally for aortic reference measurement. Systemic hypertension was induced by volume load and pharmacologic stress. Pressure curves and dp/dt were simultaneously recorded and the ratios of aneurysm pressure to systemic reference pressure calculated. Results: At follow-up, type-II, endoleaks were excluded in all cases of group I by selective angiography. In contrast, endoleaks were evident in all cases of group II. Volumetric analysis of the aneurysms showed a benefit for group I with an improved aneurysm shrinkage: ΔVolume +0.08%, -1.62% and -9.76% at 1 week, 6 weeks and 6 months follow-up (median, group I), compared to +1.43%, +0.67%, and -4.04% (group II), p [de

  14. Endovascular treatment of thoracic aorta aneurysm and dissection

    International Nuclear Information System (INIS)

    Petrov, I.; Stankov, Z.; Stefanov, St.; Stoyanov, Hr.

    2015-01-01

    Full text: The aim is to give up to date information about modern endovascular treatment of aortic pathology Dissection and aneurysms of the aorta are life threatening condition requiring in most of the cases prompt surgical or endovascular treatment because of the poor natural evolution. Purpose: to assess the immediate and 1-year outcome of endovascular treatment in broad spectrum of acute and subacute aortic syndrome during the last 3 years (November 2012 - August 2015) in City Clinic (Sofia, Bulgaria). We performed endovascular treatment of 47 patients (43 men, 4 women) at average age 54 y. with dissection (24) and aneurysms (23) of the aortic arch and thoracic aorta (in 5 emergent treatment was performed for aortic rupture). All patients were treated with minimal surgical femoral approach. In 4 (9%) of them initial carotid to carotid bypass was performed in order to provide a sufficient landing zone for the endograft implantation.the last 9 patients (19%) were treated without general anesthesia with either deep sedation or epidural anesthesia. Results: In all patients successful endograft implantation was achieved. Additional stent-graft or open cell stent was implanted in 4 cases in order to centralize the flow in the compressed true lumen. In 5 cases additional vascular plug or large coil was delivered in the left subclavian arteryostium in order to interrupt retrograde aneurysm or false lumen filling. Complications: 30 days mortality-2.2%, neurologic disorders (4.4%). one year survival- 45 (90.5%). 3 and 6 mo control CT scan showed no migration of the graft in 100%, full false lumen isolation in 19 out of 24 dissections (80%) and aneurysm free of expansion in 20 out of 23 (86%), patent carotid bay-pass graft in 4 of 4 (100%). This one center study showed excellent immediate and 1 year clinical and device results from endovascular repair of potentially fatal disease. Endovascular treatment is a method of choice for broad spectrum of aortic pathology

  15. Treatment of a Chronic Aneurysmal Aortic Dissection in a Patient with Marfan Syndrome Using a Staged Hybrid Procedure and a Fenestrated Endograft

    International Nuclear Information System (INIS)

    Walkden, R. Miles; Morgan, Rob A.; Loftus, Ian; Thompson, Matt

    2008-01-01

    Patients with aneurysmal dissections involving both the thoracic and the abdominal aorta are particularly challenging to treat with endovascular techniques because of the natural communications at the level of the visceral arteries. We present the case of a patient with Marfan syndrome with an aneurysmal aortic dissection involving the thoracic and abdominal aorta who was treated by a combination of endografts, surgical bypass, and a fenestrated tube graft.

  16. Outcomes of endovascular aortic repair in the modern era

    DEFF Research Database (Denmark)

    Budtz-Lilly, Jacob; Wanhainen, Anders; Mani, Kevin

    2018-01-01

    Monitoring outcomes following endovascular aortic repair (EVAR) is critical. Although evidence from randomized controlled trials has solidified the role of EVAR, the analysis of outcomes and "real-world" data has uncovered limitations, improved the selection of appropriate patients, and underscored...... the importance of instructions for use. Subsequent studies demonstrated the learning curve of EVAR and gradual improvement of outcomes over time. Outcomes analyses will continue to play an important role, particularly as technological growth of endovascular therapy has enabled treatment of more complex aneurysm...... pathologies and patients. The important analyses are herein reviewed, following the development of EVAR in the treatment of intact abdominal aortic aneurysms (AAA) to ruptured AAAs, and finally to complex aneurysms, including thoracoabdominal aortic aneurysms and mycotic aneurysms. This includes an overview...

  17. Proteins associated with the size and expansion rate of the abdominal aortic aneurysm wall as identified by proteomic analysis

    DEFF Research Database (Denmark)

    Urbonavicius, Sigitas; Lindholt, Jes S.; Delbosc, Sandrine

    2010-01-01

    Identification of biomarkers for the natural history of abdominal aortic aneurysms (AAA) holds the key to non-surgical intervention and improved selection for AAA repair. We aimed to associate the basic proteomic composition of AAA wall tissue with the expansion rate and size in patients with AAA....

  18. Systemic MCP1/CCR2 blockade and leukocyte specific MCP1/CCR2 inhibition affect aortic aneurysm formation differently

    NARCIS (Netherlands)

    de Waard, Vivian; Bot, Ilze; de Jager, Saskia C. A.; Talib, Sara; Egashira, Kensuke; de Vries, Margreet R.; Quax, Paul H. A.; Biessen, Erik A. L.; van Berkel, Theo J. C.

    2010-01-01

    Objective: CCR2, the receptor for monocyte chemoattractant protein 1 (MCP1), is involved in atherosclerosis and abdominal aortic aneurysms (AAAs). Here, we explored the potential beneficial blockade of the MCP1/CCR2 pathway. Methods: We applied an AAA model in aging apolipoprotein E deficient mice

  19. Retrograde type A dissection following hybrid supra-aortic endovascular surgery in high-risk patients unfit for conventional open repair.

    Science.gov (United States)

    Yip, Hon C; Chan, Yiu C; Qing, Kai X; Cheng, Stephen W

    2018-04-01

    Hybrid procedures with combined open extra-anatomical supra-aortic bypasses and endovascular surgery are less invasive for patients with complex aortic arch pathology. The aim of this paper is to report patients who developed retrograde type A aortic dissection following initially successful hybrid endovascular treatment. Retrospective review of prospectively collected computerized departmental database. All patients with supra-aortic hybrid endovascular surgery and post-procedure retrograde type A dissection were identified. Patient demographics, comorbid conditions, perioperative parameters, procedural details and post-operative complications were collected. From May 2005 to July 2014, 163 patients underwent thoracic aortic endovascular procedures at our institution. From the 46 patients who had supra-aortic hybrid endovascular repair, six patients (6/46, 13% of all supra-aortic hybrid cases, 3 males) developed retrograde type A aortic dissection. All were elective cases, with 3 chronic dissecting aneurysms and 3 atherosclerotic aneurysms. All had one-stage hybrid procedures: 2 patients had carotid-carotid bypass grafts, one had carotid-carotid-left subclavian bypass graft, and 3 had bypass grafts from ascending aorta to innominate artery and left carotid artery. Five patients had Cook Zenith thoracic stent-grafts (Cook Medical, Bloomington, IN, USA), and one had Medtronic Valiant stent-grafts (Medtronic Vascular Inc, Santa Rosa, CA, USA). The retrograde type A dissection occurred with sudden symptoms at day 5, 6, 10, 20, 105 and 128, respectively. There were 3 immediate fatalities and 2 patients treated conservatively deemed unfit for reintervention (one died of pneumonia at 9 months, and one remained alive at 7 months post-complication). One patient underwent successful emergency open surgery and survived. Supra-aortic hybrid procedures in treating aortic arch pathology may be at risk of developing retrograde type A dissection. This post-operative complication

  20. Meta-analysis of individual-patient data from EVAR-1, DREAM, OVER and ACE trials comparing outcomes of endovascular or open repair for abdominal aortic aneurysm over 5 years

    NARCIS (Netherlands)

    Powell, J. T.; Sweeting, M. J.; Ulug, P.; Blankensteijn, J. D.; Lederle, F. A.; Becquemin, J.-P.; Greenhalgh, R. M.; Beard, J. D.; Buxton, M. J.; Brown, L. C.; Harris, P. L.; Rose, J. D. G.; Russell, I. T.; Sculpher, M. J.; Thompson, S. G.; Lilford, R. J.; Bell, P. R. F.; Whitaker, S. C.; Poole-Wilson, The Late P. A.; Ruckley, C. V.; Campbell, W. B.; Dean, M. R. E.; Ruttley, M. S. T.; Coles, E. C.; Halliday, A.; Gibbs, S. J.; Epstein, D.; Hannon, R. J.; Johnston, L.; Bradbury, A. W.; Henderson, M. J.; Parvin, S. D.; Shepherd, D. F. C.; Mitchell, A. W.; Edwards, P. R.; Abbott, G. T.; Higman, D. J.; Vohra, A.; Ashley, S.; Robottom, C.; Wyatt, M. G.; Byrne, D.; Edwards, R.; Leiberman, D. P.; McCarter, D. H.; Taylor, P. R.; Reidy, J. F.; Wilkinson, A. R.; Ettles, D. F.; Clason, A. E.; Leen, G. L. S.; Wilson, N. V.; Downes, M.; Walker, S. R.; Lavelle, J. M.; Gough, M. J.; McPherson, S.; Scott, D. J. A.; Kessell, D. O.; Naylor, R.; Sayers, R.; Fishwick, N. G.; Gould, D. A.; Walker, M. G.; Chalmers, N. C.; Garnham, A.; Collins, M. A.; Gaines, P. A.; Ashour, M. Y.; Uberoi, R.; Braithwaite, B.; Davies, J. N.; Travis, S.; Hamilton, G.; Platts, A.; Shandall, A.; Sullivan, B. A.; Sobeh, M.; Matson, M.; Fox, A. D.; Orme, R.; Yusef, W.; Doyle, T.; Horrocks, M.; Hardman, J.; Blair, P. H. B.; Ellis, P. K.; Morris, G.; Odurny, A.; Vohra, R.; Duddy, M.; Thompson, M.; Loosemore, T. M. L.; Belli, A. M.; Morgan, R.; Adiseshiah, M.; Brookes, J. A. S.; McCollum, C. N.; Ashleigh, R.; Aukett, M.; Baker, S.; Barbe, E.; Batson, N.; Bell, J.; Blundell, J.; Boardley, D.; Boyes, S.; Brown, O.; Bryce, J.; Carmichael, M.; Chance, T.; Coleman, J.; Cosgrove, C.; Curran, G.; Dennison, T.; Devine, C.; Dewhirst, N.; Errington, B.; Farrell, H.; Fisher, C.; Fulford, P.; Gough, M.; Graham, C.; Hooper, R.; Horne, G.; Horrocks, L.; Hughes, B.; Hutchings, T.; Ireland, M.; Judge, C.; Kelly, L.; Kemp, J.; Kite, A.; Kivela, M.; Lapworth, M.; Lee, C.; Linekar, L.; Mahmood, A.; March, L.; Martin, J.; Matharu, N.; McGuigen, K.; Morris-Vincent, P.; Murray, S.; Murtagh, A.; Owen, G.; Ramoutar, V.; Rippin, C.; Rowley, J.; Sinclair, J.; Spencer, S.; Taylor, V.; Tomlinson, C.; Ward, S.; Wealleans, V.; West, J.; White, K.; Williams, J.; Wilson, L.; Grobbee, D. E.; Bak, A. A. A.; Buth, J.; Pattynama, P. M.; Verhoeven, E. L. G.; van Voorthuisen, A. E.; Balm, R.; Cuypers, P. W. M.; Prinssen, M.; van Sambeek, M. R. H. M.; Baas, A. F.; Hunink, M. G.; van Engelshoven, J. M.; Jacobs, M. J. H. M.; de Mol, B. A. J. M.; van Bockel, J. H.; Reekers, J.; Tielbeek, X.; Wisselink, W.; Boekema, N.; Heuveling, L. M.; Sikking, I.; de Bruin, J. L.; Tielbeek, A. V.; Pattynama, P.; Prins, T.; van der Ham, A. C.; van der Velden, J. J. I. M.; van Sterkenburg, S. M. M.; ten Haken, G. B.; Bruijninckx, C. M. A.; van Overhagen, H.; Tutein Nolthenius, R. P.; Hendriksz, T. R.; Teijink, J. A. W.; Odink, H. F.; de Smet, A. A. E. A.; Vroegindeweij, D.; van Loenhout, R. M. M.; Rutten, M. J.; Hamming, J. F.; Lampmann, L. E. H.; Bender, M. H. M.; Pasmans, H.; Vahl, A. C.; de Vries, C.; Mackaay, A. J. C.; van Dortmont, L. M. C.; van der Vliet, A. J.; Schultze Kool, L. J.; Boomsma, J. H. B.; van Dop, H. R.; de Mol van Otterloo, J. C. A.; de Rooij, T. P. W.; Smits, T. M.; Yilmaz, E. N.; van den Berg, F. G.; Visser, M. J. T.; van der Linden, E.; Schurink, G. W. H.; de Haan, M.; Smeets, H. J.; Stabel, P.; van Elst, F.; Poniewierski, J.; Vermassen, F. E. G.; Freischlag, J. A.; Kohler, T. R.; Latts, E.; Matsumura, J.; Padberg, F. T.; Kyriakides, T. C.; Swanson, K. M.; Guarino, P.; Peduzzi, P.; Antonelli, M.; Cushing, C.; Davis, E.; Durant, L.; Joyner, S.; Kossack, The Late A.; LeGwin, Mary; McBride, V.; O'Connor, T.; Poulton, J.; Stratton, The Late S.; Zellner, S.; Snodgrass, A. J.; Thornton, J.; Haakenson, C. M.; Stroupe, K. T.; Jonk, Y.; Hallett, J. W.; Hertzer, N.; Towne, J.; Katz, D. A.; Karrison, T.; Matts, J. P.; Marottoli, R.; Kasl, S.; Mehta, R.; Feldman, R.; Farrell, W.; Allore, H.; Perry, E.; Niederman, J.; Randall, F.; Zeman, M.; Beckwith, The Late D.; O'Leary, T. J.; Huang, G. D.; Bader, M.; Ketteler, E. R.; Kingsley, D. D.; Marek, J. M.; Massen, R. J.; Matteson, B. D.; Pitcher, J. D.; Langsfeld, M.; Corson, J. D.; Goff, J. M.; Kasirajan, K.; Paap, C.; Robertson, D. C.; Salam, A.; Veeraswamy, R.; Milner, R.; Guidot, J.; Lal, B. K.; Busuttil, S. J.; Lilly, M. P.; Braganza, M.; Ellis, K.; Patterson, M. A.; Jordan, W. D.; Whitley, D.; Taylor, S.; Passman, M.; Kerns, D.; Inman, C.; Poirier, J.; Ebaugh, J.; Raffetto, J.; Chew, D.; Lathi, S.; Owens, C.; Hickson, K.; Dosluoglu, H. H.; Eschberger, K.; Kibbe, M. R.; Baraniewski, H. M.; Endo, M.; Busman, A.; Meadows, W.; Evans, M.; Giglia, J. S.; El Sayed, H.; Reed, A. B.; Ruf, M.; Ross, S.; Jean-Claude, J. M.; Pinault, G.; Kang, P.; White, N.; Eiseman, M.; Jones, The Late R.; Timaran, C. H.; Modrall, J. G.; Welborn, M. B.; Lopez, J.; Nguyen, T.; Chacko, J. K. Y.; Granke, K.; Vouyouka, A. G.; Olgren, E.; Chand, P.; Allende, B.; Ranella, M.; Yales, C.; Whitehill, T. A.; Krupski, The Late W. C.; Nehler, M. R.; Johnson, S. P.; Jones, D. N.; Strecker, P.; Bhola, M. A.; Shortell, C. K.; Gray, J. L.; Lawson, J. H.; McCann, R.; Sebastian, M. W.; Kistler Tetterton, J.; Blackwell, C.; Prinzo, P. A.; Lee, N.; Cerveira, J. J.; Zickler, R. W.; Hauck, K. A.; Berceli, S. A.; Lee, W. A.; Ozaki, C. K.; Nelson, P. R.; Irwin, A. S.; Baum, R.; Aulivola, B.; Rodriguez, H.; Littooy, F. N.; Greisler, H.; O'Sullivan, M. T.; Kougias, P.; Lin, P. H.; Bush, R. L.; Guinn, G.; Bechara, C.; Cagiannos, C.; Pisimisis, G.; Barshes, N.; Pillack, S.; Guillory, B.; Cikrit, D.; Lalka, S. G.; Lemmon, G.; Nachreiner, R.; Rusomaroff, M.; O'Brien, E.; Cullen, J. J.; Hoballah, J.; Sharp, W. J.; McCandless, J. L.; Beach, V.; Minion, D.; Schwarcz, T. H.; Kimbrough, J.; Ashe, L.; Rockich, A.; Warner-Carpenter, J.; Moursi, M.; Eidt, J. F.; Brock, S.; Bianchi, C.; Bishop, V.; Gordon, I. L.; Fujitani, R.; Kubaska, S. M.; Behdad, M.; Azadegan, R.; Ma Agas, C.; Zalecki, K.; Hoch, J. R.; Carr, S. C.; Acher, C.; Schwarze, M.; Tefera, G.; Mell, M.; Dunlap, B.; Rieder, J.; Stuart, J. M.; Weiman, D. S.; Abul-Khoudoud, O.; Garrett, H. E.; Walsh, S. M.; Wilson, K. L.; Seabrook, G. R.; Cambria, R. A.; Brown, K. R.; Lewis, B. D.; Framberg, S.; Kallio, C.; Barke, R. A.; Santilli, S. M.; d'Audiffret, A. C.; Oberle, N.; Proebstle, C.; Johnson, L. L.; Jacobowitz, G. R.; Cayne, N.; Rockman, C.; Adelman, M.; Gagne, P.; Nalbandian, M.; Caropolo, L. J.; Pipinos, I. I.; Johanning, J.; Lynch, T.; DeSpiegelaere, H.; Purviance, G.; Zhou, W.; Dalman, R.; Lee, J. T.; Safadi, B.; Coogan, S. M.; Wren, S. M.; Bahmani, D. D.; Maples, D.; Thunen, S.; Golden, M. A.; Mitchell, M. E.; Fairman, R.; Reinhardt, S.; Wilson, M. A.; Tzeng, E.; Muluk, S.; Peterson, N. M.; Foster, M.; Edwards, J.; Moneta, G. L.; Landry, G.; Taylor, L.; Yeager, R.; Cannady, E.; Treiman, G.; Hatton-Ward, S.; Salabsky, The Late B.; Kansal, N.; Owens, E.; Estes, M.; Forbes, B. A.; Sobotta, C.; Rapp, J. H.; Reilly, L. M.; Perez, S. L.; Yan, K.; Sarkar, R.; Dwyer, S. S.; Perez, S.; Chong, K.; Hatsukami, T. S.; Glickerman, D. G.; Sobel, M.; Burdick, T. S.; Pedersen, K.; Cleary, P.; Back, M.; Bandyk, D.; Johnson, B.; Shames, M.; Reinhard, R. L.; Thomas, S. C.; Hunter, G. C.; Leon, L. R.; Westerband, A.; Guerra, R. J.; Riveros, M.; Mills, J. L.; Hughes, J. D.; Escalante, A. M.; Psalms, S. B.; Day, N. N.; Macsata, R.; Sidawy, A.; Weiswasser, J.; Arora, S.; Jasper, B. J.; Dardik, A.; Gahtan, V.; Muhs, B. E.; Sumpio, B. E.; Gusberg, R. J.; Spector, M.; Pollak, J.; Aruny, J.; Kelly, E. L.; Wong, J.; Vasilas, P.; Joncas, C.; Gelabert, H. A.; DeVirgillio, C.; Rigberg, D. A.; Cole, L.; Marzelle, J.; Sapoval, M.; Favre, J.-P.; Watelet, J.; Lermusiaux, P.; Lepage, E.; Hemery, F.; Dolbeau, G.; Hawajry, N.; Cunin, P.; Harris, P.; Stockx, L.; Chatellier, G.; Mialhe, C.; Fiessinger, J.-N.; Pagny, L.; Kobeiter, H.; Boissier, C.; Lacroix, P.; Ledru, F.; Pinot, J.-J.; Deux, J.-F.; Tzvetkov, B.; Duvaldestin, P.; Jourdain, C.; DAVID, V.; Enouf, D.; Ady, N.; Krimi, A.; Boudjema, N.; Jousset, Y.; Enon, B.; Blin, V.; Picquet, J.; L'Hoste, P.; Thouveny, F.; Borie, H.; Kowarski, S.; Pernes, J.-M.; Auguste, M.; Desgranges, P.; Allaire, E.; Meaulle, P.-Y.; Chaix, D.; Juliae, P.; Fabiani, J. N.; Chevalier, P.; Combes, M.; Seguin, A.; Belhomme, D.; Baque, J.; Pellerin, O.; Favre, J. P.; Barral, X.; Veyret, C.; Peillon, C.; Plissonier, D.; Thomas, P.; Clavier, E.; Martinez, R.; Bleuet, F.; C, Dupreix; Verhoye, J. P.; Langanay, T.; Heautot, J. F.; Koussa, M.; Haulon, S.; Halna, P.; Destrieux, L.; Lions, C.; Wiloteaux, S.; Beregi, J. P.; Bergeron, P.; Patra, P.; Costargent, A.; Chaillou, P.; D'Alicourt, A.; Goueffic, Y.; Cheysson, E.; Parrot, A.; Garance, P.; Demon, A.; Tyazi, A.; Pillet, J.-C.; Lescalie, F.; Tilly, G.; Steinmetz, E.; Favier, C.; Brenot, R.; Krause, D.; Cercueil, J. P.; Vahdat, O.; Sauer, M.; Soula, P.; Querian, A.; Garcia, O.; Levade, M.; Colombier, D.; Cardon, J.-M.; Joyeux, A.; Borrelly, P.; Dogas, G.; Magnan, P.-É; Branchereau, A.; Bartoli, J.-M.; Hassen-Khodja, R.; Batt, M.; Planchard, P.-F.; Bouillanne, P.-J.; Haudebourg, P.; Bayne, J.; Gouny, P.; Badra, A.; Braesco, J.; Nonent, M.; Lucas, A.; Cardon, A.; Kerdiles, Y.; Rolland, Y.; Kassab, M.; Brillu, C.; Goubault, F.; Tailboux, L.; Darrieux, H.; Briand, O.; Maillard, J.-C.; Varty, K.; Cousins, C.

    2017-01-01

    The erosion of the early mortality advantage of elective endovascular aneurysm repair (EVAR) compared with open repair of abdominal aortic aneurysm remains without a satisfactory explanation. An individual-patient data meta-analysis of four multicentre randomized trials of EVAR versus open repair

  1. Valve-Sparing Root Replacement Compared With Composite Valve Graft Procedures in Patients With Aortic Root Dilation.

    Science.gov (United States)

    Ouzounian, Maral; Rao, Vivek; Manlhiot, Cedric; Abraham, Nachum; David, Carolyn; Feindel, Christopher M; David, Tirone E

    2016-10-25

    Although aortic valve-sparing (AVS) operations are established alternatives to composite valve graft (CVG) procedures for patients with aortic root aneurysms, comparative long-term outcomes are lacking. This study sought to compare the results of patients undergoing AVS procedures with those undergoing CVG operations. From 1990 to 2010, a total of 616 patients age Marfan syndrome and lower rates of bicuspid aortic valve than those undergoing bio-CVG or m-CVG procedures. In-hospital mortality (0.3%) and stroke rate (1.3%) were similar among groups. After adjusting for clinical covariates, both bio-CVG and m-CVG procedures were associated with increased long-term major adverse valve-related events compared with patients undergoing AVS (hazard ratio [HR]: 3.4, p = 0.005; and HR: 5.2, p valve-related complications when compared with bio-CVG and m-CVG. AVS is the treatment of choice for young patients with aortic root aneurysm and normal or near-normal aortic cusps. Copyright © 2016 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

  2. Early and late results of graft replacement for dissecting aneurysm of thoracoabdominal aorta in patients with Marfan syndrome.

    Science.gov (United States)

    Omura, Atsushi; Tanaka, Akiko; Miyahara, Shunsuke; Sakamoto, Toshihito; Nomura, Yoshikatsu; Inoue, Takeshi; Oka, Takanori; Minami, Hitoshi; Okada, Kenji; Okita, Yutaka

    2012-09-01

    When treating dissecting aneurysm of the thoracoabdominal aorta surgically in patients with Marfan syndrome, we have usually performed graft replacement- including the entire thoracoabdominal aorta and reconstruction of all visceral branches, even if dilatation is mild in some segments-to avoid further aortic operations in the follow-up period. From October 1999 through July 2011, 20 consecutive patients with Marfan syndrome underwent repair of dissecting aneurysm of the thoracoabdominal aorta (median age, 45 years; range, 19-65 years). All patients underwent surgical intervention with cerebrospinal fluid (CSF) drainage and distal aortic and selective organ perfusion. Deep hypothermia was used in 13 patients for spinal cord protection. No in-hospital mortality was observed. One patient had temporary spinal cord ischemia but was fully recovered by discharge. Other complications included exploration for bleeding (n=1), prolonged ventilation (n=1), and graft infection (n=1). At a mean follow-up of 54 months (range, 9-129 months), 1 patient had died of interstitial pneumonia at 38 months postoperatively. Survival at 8% years was 91.2±9.0%. Two patients required additional aortic procedures (total arch replacement and aortic valve-sparing surgery). Actuarial rate of freedom from aortic operations at 8 years was 83.9%±10.5%, but no patient needed required repeated thoracotomy for an aortic procedure. Neither false nor patch aneurysms were observed using computed tomography (CT) during follow-up surveillance. Graft replacement for dissecting aneurysm of the thoracoabdominal aorta in Marfan syndrome offers good early and long-term results. We believe total aortic replacement including the entire thoracoabdominal aorta and reconstruction of all visceral arteries should be recommended for selected patients with Marfan syndrome. Copyright © 2012 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.

  3. [Modern aortic surgery in Marfan syndrome--2011].

    Science.gov (United States)

    Kallenbach, K; Schwill, S; Karck, M

    2011-09-01

    Marfan syndrome is a hereditary disease with a prevalence of 2-3 in 10,000 births, leading to a fibrillin connective tissue disorder with manifestations in the skeleton, eye, skin, dura mater and in particular the cardiovascular system. Since other syndromes demonstrate similar vascular manifestations, but therapy may differ significantly, diagnosis should be established using the revised Ghent nosology in combination with genotypic analysis in specialized Marfan centres. The formation of aortic root aneurysms with the subsequent risk of acute aortic dissection type A (AADA) or aortic rupture limits life expectancy in patients with Marfan syndrome. Therefore, prophylactic replacement of the aortic root needs to be performed before the catastrophic event of AADA can occur. The goal of surgery is the complete resection of pathological aortic tissue. This can be achieved with excellent results by using a (mechanically) valved conduit that replaces both the aortic valve and the aortic root (Bentall operation). However, the need for lifelong anticoagulation with Coumadin can be avoided using the aortic valve sparing reimplantation technique according to David. The long-term durability of the reconstructed valve is favourable, and further technical improvements may improve longevity. Although results of prospective randomised long-term studies comparing surgical techniques are lacking, the David operation has become the surgical method of choice for aortic root aneurysms, not only at the Heidelberg Marfan Centre. Replacement of the aneurysmal dilated aortic arch is performed under moderate hypothermic circulatory arrest combined with antegrade cerebral perfusion using a heart-lung machine, which we also use in thoracic or thoracoabdominal aneurysms. Close post-operative follow-up in a Marfan centre is pivotal for the early detection of pathological changes on the diseased aorta.

  4. The Burden of Hard Atherosclerotic Plaques Does Not Promote Endoleak Development After Endovascular Aortic Aneurysm Repair: A Risk Stratification

    International Nuclear Information System (INIS)

    Petersen, Johannes; Glodny, Bernhard

    2011-01-01

    Purpose: To objectify the influence of the atherosclerotic burden in the proximal landing zone on the development of endoleaks after endovascular abdominal aortic aneurysm repair (EVAR) or thoracic endovascular aneurysm repair (TEVAR) using objective aortic calcium scoring (ACS). Materials and Methods: This retrospective observation study included 267 patients who received an aortic endograft between 1997 and 2010 and for whom preoperative computed tomography (CT) was available to perform ACS using the CT-based V600 method. The mean follow-up period was 2 ± 2.3 years. Results: Type I endoleaks persisted in 45 patients (16.9%), type II in 34 (12.7%), type III in 8 (3%), and type IV or V in 3 patients, respectively (1.1% each). ACS in patients with type I endoleaks was not increased: 0.029 ± 0.061 ml compared with 0.075 ± 0.1349 ml in the rest of the patients, (p > 0.05; Whitney–Mann U-Test). There were significantly better results for the indication “traumatic aortic rupture” than for the other indications (p < 0.05). In multivariate logistic regression analyses, age was an independent risk factor for the development of type I endoleaks in the thoracic aorta (Wald 9.5; p = 0.002), whereas ACS score was an independent protective factor (Wald 6.9; p = 0.009). In the abdominal aorta, neither age nor ACS influenced the development of endoleaks. Conclusion: Contrary to previous assumptions, TEVAR and EVAR can be carried out without increasing the risk of an endoleak of any type, even if there is a high atherosclerotic “hard-plaque” burden of the aorta. The results are significantly better for traumatic aortic.

  5. Aneurysm Complications

    Science.gov (United States)

    ... Susco Chair of Research North Shore University Hospital, Brain Aneurysm Center Chair of Research The Christopher C. Getch, MD Chair of Research Carol W. Harvey Memorial Chair of Research Kristen’s Legacy of Love Chair of Research TeamCindy Alcatraz Chair of Research ...

  6. Valve-sparing root replacement in children with aortic root aneurysm: mid-term results.

    Science.gov (United States)

    Lange, Rüdiger; Badiu, Catalin C; Vogt, Manfred; Voss, Bernhard; Hörer, Jürgen; Prodan, Zsolt; Schreiber, Christian; Mazzitelli, Domenico

    2013-05-01

    We aimed at evaluating the results of aortic valve-sparing root replacement (AVSRR) in children with aortic root aneurysm (ARA) due to genetic disorders in terms of mortality, reoperation and recurrent aortic valve regurgitation (AVR). Thirteen patients (mean age 9.7 ± 6.5 years, 10 months-18 years) underwent AVSRR for ARA between 2002 and 2011. Six of the 13 patients had Marfan syndrome, 3 Loeys-Dietz syndrome (LDS), 2 bicuspid aortic valve syndrome and 2 an unspecified connective tissue disorder. AVR was graded as none/trace, mild and severe in 5, 7 and 1 patient, respectively. The mean pre-operative root diameter was 45 ± 10 mm (mean Z-score 10.3 ± 2.0). Remodelling of the aortic root was performed in 4 patients, reimplantation of the aortic valve in 9 and a concomitant cusp repair in 4. The diameter of the prostheses used for root replacement varied from 22 to 30 mm (mean Z-score = 2.3 ± 3). The follow-up was 100% complete with a mean follow-up time of 3.7 years. There was no operative mortality. One patient with LDS died 2.5 years after the operation due to spontaneous rupture of the descending aorta. Root re-replacement with mechanical conduit was necessary in 1 patient for severe recurrent AVR 8 days after remodelling of the aortic root. At final follow-up, AVR was graded as none/trace and mild in all patients. Eleven patients presented in New York Heart Association functional Class I and 1 in Class II. In paediatric patients with ARA, valve-sparing root replacement can be performed with low operative risk and excellent mid-term valve durability. Hence, prosthetic valve-related morbidity may be avoided. Due to the large diameters of the aortic root and the ascending aorta, the size of the implanted root prostheses will not limit later growth of the native aorta.

  7. Editor's Choice - High Annual Hospital Volume is Associated with Decreased in Hospital Mortality and Complication Rates Following Treatment of Abdominal Aortic Aneurysms: Secondary Data Analysis of the Nationwide German DRG Statistics from 2005 to 2013.

    Science.gov (United States)

    Trenner, Matthias; Kuehnl, Andreas; Salvermoser, Michael; Reutersberg, Benedikt; Geisbuesch, Sarah; Schmid, Volker; Eckstein, Hans-Henning

    2018-02-01

    The aim of this study was to analyse the association between annual hospital procedural volume and post-operative outcomes following repair of abdominal aortic aneurysms (AAA) in Germany. Data were extracted from nationwide Diagnosis Related Group (DRG) statistics provided by the German Federal Statistical Office. Cases with a diagnosis of AAA (ICD-10 GM I71.3, I71.4) and procedure codes for endovascular aortic repair (EVAR; OPS 5-38a.1*) or open aortic repair (OAR; OPS 5-38.45, 5-38.47) treated between 2005 and 2013 were included. Hospitals were empirically grouped to quartiles depending on the overall annual volume of AAA procedures. A multilevel multivariable regression model was applied to adjust for sex, medical risk, type of procedure, and type of admission. Primary outcome was in hospital mortality. Secondary outcomes were complications, use of blood products, and length of stay (LOS). The association between AAA volume and in hospital mortality was also estimated as a function of continuous volume. A total of 96,426 cases, of which 11,795 (12.6%) presented as ruptured (r)AAA, were treated in >700 hospitals (annual median: 501). The crude in hospital mortality was 3.3% after intact (i)AAA repair (OAR 5.3%; EVAR 1.7%). Volume was inversely associated with mortality after OAR and EVAR. Complication rates, LOS, and use of blood products were lower in high volume hospitals. After rAAA repair, crude mortality was 40.4% (OAR 43.2%; EVAR 27.4%). An inverse association between mortality and volume was shown for rAAA repair; the same accounts for the use of blood products. When considering volume as a continuous variate, an annual caseload of 75-100 elective cases was associated with the lowest mortality risk. In hospital mortality and complication rates following AAA repair are inversely associated with annual hospital volume. The use of blood products and the LOS are lower in high volume hospitals. A minimum annual case threshold for AAA procedures might improve

  8. Increased levels of thioredoxin in patients with abdominal aortic aneurysms (AAAs). A potential link of oxidative stress with AAA evolution

    DEFF Research Database (Denmark)

    Martinez-Pinna, R; Lindholt, Jes S.; Blanco-Colio, L M

    2010-01-01

    Oxidative stress is a main mechanism involved in vascular pathologies. Increased thioredoxin (TRX) levels have been observed in several oxidative stress-associated cardiovascular diseases. We aim to test the potential role of TRX as a biomarker of oxidative stress in abdominal aortic aneurysm (AAA)....

  9. MCP-1, ICAM-1 and VCAM-1 are present in early aneurysmal dilatation in experimental rats

    International Nuclear Information System (INIS)

    Jun Fan; Hao-Tong; Jing Di; Fang Liu; Hai-Hua Zhao; Shu-Ling Bai; Xiang Li; Linlin Zhong

    2010-01-01

    Recent studies have suggested that inflammation actively participates in ascending aortic aneurysm formation. The aim of the present study was to evaluate the expression changes of adhesion molecules and MMPs in an experimental model of ascending aortic aneurysm induced by ascending aorta banding in Wistar rats. Twelve rats developed aortic dilation after ascending aorta banding treatment, while nine normal animals underwent surgery without banding were used as controls. Light microscope and scanning electron microscope showed that the wall of the ascending aorta became disorganized as well as infiltration by inflammatory cells in aneurysmal rats. By using immunohistochemical techniques, a significant increase in the immunostaining of MCP-1 was observed in the aneurysmal wall as compared to the normal aortic wall. Under similar experimental conditions, we also found that the immunostaining of ICAM-1 and VCAM-1 was markedly increased in the aneurysmal wall. In addition, gelatin zymo graphic analysis showed that the expression and activities of MMP-2 and MMP-9 were remarkably enhanced in the ascending aorta of ascending aortic aneurysmal rats as compared to normal rats. These results demonstrate that MCP-1, ICAM-1 and VCAM-1 are involved in the pathogenesis of ascending aortic aneurysm and an increase in the immunostaining and activity of MMP-2 and MMP-9 may promote the progression of ascending aortic aneurysm. (authors)

  10. Valve-sparing aortic root replacement in patients with Marfan syndrome enrolled in the National Registry of Genetically Triggered Thoracic Aortic Aneurysms and Cardiovascular Conditions.

    Science.gov (United States)

    Song, Howard K; Preiss, Liliana R; Maslen, Cheryl L; Kroner, Barbara; Devereux, Richard B; Roman, Mary J; Holmes, Kathryn W; Tolunay, H Eser; Desvigne-Nickens, Patrice; Asch, Federico M; Milewski, Rita K; Bavaria, Joseph; LeMaire, Scott A

    2014-05-01

    The long-term outcomes of aortic valve-sparing (AVS) root replacement in Marfan syndrome (MFS) patients remain uncertain. The study aim was to determine the utilization and outcomes of AVS root replacement in MFS patients enrolled in the Registry of Genetically Triggered Thoracic Aortic Aneurysms and Cardiovascular Conditions (GenTAC). At the time of this analysis, 788 patients with MFS were enrolled in the GenTAC Registry, of whom 288 had undergone aortic root replacement. Patients who had undergone AVS procedures were compared to those who had undergone aortic valve replacement (AVR). AVS root replacement was performed in 43.5% of MFS patients, and the frequency of AVS was increased over the past five years. AVS patients were younger at the time of surgery (31.0 versus 36.3 years, p = 0.006) and more likely to have had elective rather than emergency surgery compared to AVR patients, in whom aortic valve dysfunction and aortic dissection was the more likely primary indication for surgery. After a mean follow up of 6.2 +/- 3.6 years, none of the 87 AVS patients had required reoperation; in contrast, after a mean follow up of 10.5 +/- 7.6 years, 11.5% of AVR patients required aortic root reoperation. Aortic valve function has been durable, with 95.8% of AVS patients having aortic insufficiency that was graded as mild or less. AVS root replacement is performed commonly among the MFS population, and the durability of the aortic repair and aortic valve function have been excellent to date. These results justify a continued use of the procedure in an elective setting. The GenTAC Registry will be a useful resource to assess the long-term durability of AVS root replacement in the future.

  11. Valve Sparing Aortic Root Replacement in Patients with Marfan Syndrome Enrolled in the National Registry of Genetically Triggered Thoracic Aortic Aneurysms and Cardiovascular Conditions

    Science.gov (United States)

    Song, Howard K.; Preiss, Liliana R.; Maslen, Cheryl L.; Kroner, Barbara; Devereux, Richard B.; Roman, Mary J.; Holmes, Kathryn W.; Tolunay, H. Eser; Desvigne-Nickens, Patrice; Asch, Federico M.; Milewski, Rita K.; Bavaria, Joseph; LeMaire, Scott A.

    2016-01-01

    Background The long-term outcomes of aortic valve sparing (AVS) root replacement in Marfan syndrome (MFS) patients remain uncertain. We sought to determine the utilization and outcomes of AVS root replacement in MFS patients enrolled in the Registry of Genetically Triggered Thoracic Aortic Aneurysms and Cardiovascular Conditions (GenTAC). Methods At the time of this analysis, 788 patients with MFS were enrolled in the GenTAC Registry, of whom 288 have undergone aortic root replacement. Patients who have undergone AVS procedures were compared to those who have undergone aortic valve replacing (AVR) procedures. Results AVS root replacement was performed in 43.5% of MFS patients and the frequency of AVS increased over the past 5 years. AVS patients were younger at the time of surgery (31.0 vs. 36.3 years, p=0.006) and more likely to have had elective rather than emergency surgery compared to AVR patients. AVR patients were more likely to have had aortic valve dysfunction and aortic dissection as a primary indication for surgery. After mean follow-up of 6.2 (SD=3.6) years, none of the 87 AVS patients have required reoperation; in contrast, after mean follow up of 10.5 (SD=7.6) years, 11.5% of AVR patients have required aortic root reoperation. Aortic valve function has been durable with 95.8% of AVS patients with aortic insufficiency graded as mild or less. Conclusions AVS root replacement is performed commonly in the MFS population. The durability of the aortic repair and aortic valve function have been excellent to date. These results justify the continued use of the procedure in the elective setting. The GenTAC Registry will be a useful resource to assess the long-term durability of AVS root replacement in the future. PMID:25296451

  12. Robotic aortic surgery.

    Science.gov (United States)

    Duran, Cassidy; Kashef, Elika; El-Sayed, Hosam F; Bismuth, Jean

    2011-01-01

    Surgical robotics was first utilized to facilitate neurosurgical biopsies in 1985, and it has since found application in orthopedics, urology, gynecology, and cardiothoracic, general, and vascular surgery. Surgical assistance systems provide intelligent, versatile tools that augment the physician's ability to treat patients by eliminating hand tremor and enabling dexterous operation inside the patient's body. Surgical robotics systems have enabled surgeons to treat otherwise untreatable conditions while also reducing morbidity and error rates, shortening operative times, reducing radiation exposure, and improving overall workflow. These capabilities have begun to be realized in two important realms of aortic vascular surgery, namely, flexible robotics for exclusion of complex aortic aneurysms using branched endografts, and robot-assisted laparoscopic aortic surgery for occlusive and aneurysmal disease.

  13. Bovine aortic arch: A novel association with thoracic aortic dilation

    International Nuclear Information System (INIS)

    Malone, C.D.; Urbania, T.H.; Crook, S.E.S.; Hope, M.D.

    2012-01-01

    Aim: To investigate whether there is a link between bovine arch and thoracic aortic aneurysm. Materials and methods: Computed tomography (CT) and magnetic resonance imaging (MRI) images of the thorax of 191 patients with dilated thoracic aortas and 391 consecutive, unselected patients as controls were retrospectively reviewed. Bovine arch was considered present if either a shared origin of the left common carotid and innominate arteries or an origin of the left common carotid from the innominate artery was identified. A chi-square test was used to evaluate the significance of differences between subgroups. Results: A trend towards increased prevalence of bovine arch was seen in patients with dilated aortas (26.2%) compared to controls (20.5%, p = 0.12). The association was statistically significant in patients over 70 years old (31.9%, p = 0.019) and when dilation involved the aortic arch (47.6%, p = 0.003). Conclusions: An association between bovine arch and aortic dilation is seen in older patients, and when dilation involves the aortic arch. Bovine arch should be considered a potential risk factor for thoracic aortic aneurysm.

  14. Finite Element Implementation of a Structurally-Motivated Constitutive Relation for the Human Abdominal Aortic Wall with and without Aneurysms

    DEFF Research Database (Denmark)

    Enevoldsen, Marie Sand; Henneberg, Kaj-Åge; Lönn, L

    2011-01-01

    aneurysm (AAA) patients. Next the constitu-tive model is implemented in an anisotropic 3D FEM formula-tion for future simulation of intact aortic geometries. The 2D simulations of the biaxial test experiment show good agree-ment with experimental data with a standard deviation below 0.5% in all cases...

  15. Endovascular stent-graft placement for the treatment of acute onset and chronic aortic dissections of the descending aorta (Short-term follow-up)

    International Nuclear Information System (INIS)

    Petrov, I; Jorgova, J.; Trendafilova, D.

    2004-01-01

    The leading cause of death for patients with surgically untreated thoracic aortic aneurysms is the rupture of the aneurysm. Almost one half of these patients are left to medical treatment assuming the risk of late rupture and aneurysm sac enlargement - the late surgical treatment of these patients is too risky and with poor results. On the other hand the emergent surgical treatment of these cases is related with relatively high mortality rate. Recently, thoracic aortic stent-grafting has emerged as a less traumatic alternative therapeutic modality for patients with thoracic aortic aneurysms and aortic dissections. The first case of stent implantation in a dissected descending aorta was performed in Bulgaria at 09.04.2003. Since then we implanted in 8 patients thoracic stent grafts, The mean age of the patients was 67.5 years. The primary success was 100%. One died on the second postoperative day by abdominal aorta rupture. No other complications were registered. The mean follow-up of 5 months proved to be uneventful and the control CT revealed efficacious sealing of the entry and false lumen thrombosis in all except one cases. We report our initial clinical experience of endovascular stent-graft repair for dissection of the descending aorta that is encouraging. These preliminary data suggest that endovascular stent-grafting is a viable treatment for acute onset and chronic aortic dissection type B

  16. Left Ventricular Assist Device Implantation with Concomitant Aortic Valve and Ascending Aortic Replacement.

    Science.gov (United States)

    Huenges, Katharina; Panholzer, Bernd; Cremer, Jochen; Haneya, Assad

    2018-01-01

    Left ventricular assist device (LVAD) is nowadays a routine therapy for patients with advanced heart failure. We present the case of a 74-year-old male patient who was admitted to our center with terminal heart failure in dilated cardiomyopathy and ascending aortic aneurysm with aortic valve regurgitation. The LVAD implantation with simultaneous aortic valve and supracoronary ascending aortic replacement was successfully performed.

  17. Analysis of positional candidate genes in the AAA1 susceptibility locus for abdominal aortic aneurysms on chromosome 19

    Directory of Open Access Journals (Sweden)

    Ferrell Robert E

    2011-01-01

    Full Text Available Abstract Background Abdominal aortic aneurysm (AAA is a complex disorder with multiple genetic risk factors. Using affected relative pair linkage analysis, we previously identified an AAA susceptibility locus on chromosome 19q13. This locus has been designated as the AAA1 susceptibility locus in the Online Mendelian Inheritance in Man (OMIM database. Methods Nine candidate genes were selected from the AAA1 locus based on their function, as well as mRNA expression levels in the aorta. A sample of 394 cases and 419 controls was genotyped for 41 SNPs located in or around the selected nine candidate genes using the Illumina GoldenGate platform. Single marker and haplotype analyses were performed. Three genes (CEBPG, PEPD and CD22 were selected for DNA sequencing based on the association study results, and exonic regions were analyzed. Immunohistochemical staining of aortic tissue sections from AAA and control individuals was carried out for the CD22 and PEPD proteins with specific antibodies. Results Several SNPs were nominally associated with AAA (p CEBPG, peptidase D (PEPD, and CD22. Haplotype analysis found a nominally associated 5-SNP haplotype in the CEBPG/PEPD locus, as well as a nominally associated 2-SNP haplotype in the CD22 locus. DNA sequencing of the coding regions revealed no variation in CEBPG. Seven sequence variants were identified in PEPD, including three not present in the NCBI SNP (dbSNP database. Sequencing of all 14 exons of CD22 identified 20 sequence variants, five of which were in the coding region and six were in the 3'-untranslated region. Five variants were not present in dbSNP. Immunohistochemical staining for CD22 revealed protein expression in lymphocytes present in the aneurysmal aortic wall only and no detectable expression in control aorta. PEPD protein was expressed in fibroblasts and myofibroblasts in the media-adventitia border in both aneurysmal and non-aneurysmal tissue samples. Conclusions Association testing

  18. Does Lower Limb Exercise Worsen Renal Artery Hemodynamics in Patients with Abdominal Aortic Aneurysm?

    OpenAIRE

    Sun, Anqiang; Tian, Xiaopeng; Zhang, Nan; Xu, Zaipin; Deng, Xiaoyan; Liu, Ming; Liu, Xiao

    2015-01-01

    Renal artery stenosis (RAS) and renal complications emerge in some patients after endovascular aneurysm repair (EVAR) to treat abdominal aorta aneurysm (AAA). The mechanisms for the causes of these problems are not clear. We hypothesized that for EVAR patients, lower limb exercise could negatively influence the physiology of the renal artery and the renal function, by decreasing the blood flow velocity and changing the hemodynamics in the renal arteries. To evaluate this hypothesis, pre- and ...

  19. Hemoglobin induces monocyte recruitment and CD163-macrophage polarization in abdominal aortic aneurysm

    DEFF Research Database (Denmark)

    Rubio-Navarro, Alfonso; Amaro Villalobos, Juan Manuel; Lindholt, Jes S

    2015-01-01

    BACKGROUND: Increased hemoglobin (Hb) accumulation was reported in abdominal aortic aneurysms (AAAs). CD163 is a macrophage receptor involved in tissue Hb clearance, however its role in AAA has not been reported. We investigated the role of Hb on monocyte recruitment and differentiation towards CD......163 expressing macrophages ex vivo, in vitro and in human AAA. METHODS AND RESULTS: CD163 mRNA and protein expression was significantly higher in human AAA (n=7) vs. healthy wall (n=6). CD163 was predominantly found in adventitia of AAA, coinciding with areas rich in hemosiderin and adjacent...

  20. Endovascular Repair of Acute Symptomatic Pararenal Aortic Aneurysm With Three Chimney and One Periscope Graft for Complete Visceral Artery Revascularization

    International Nuclear Information System (INIS)

    Brechtel, Klaus; Ketelsen, Dominik; Endisch, Andrea; Heller, Stephan; Heuschmid, Martin; Stock, Ulrich A.; Kalender, Guenay

    2012-01-01

    PurposeTo describe a modified endovascular technique for complete revascularization of visceral and renal arteries in symptomatic pararenal aortic aneurysm (PRAA).TechniqueArterial access was surgically established in both common femoral arteries (CFAs) and the left subclavian artery (LSA). Revascularization of the left renal artery, the celiac trunk, and the superior mesenteric artery was performed through one single sheath via the LSA. Suitable covered stents were put in the aortic branches but not deployed. The right renal artery was accessed over the left CFA. Due to the longitudinal extension of the presented aneurysm two stent-grafts were introduced via the right CFA. After deploying the aortic stent-grafts, all covered stents in the side branches were deployed consecutively with a minimum overlap of 5 mm over the cranial and caudal stent-graft edges. Simultaneous ballooning was performed to fully expand all stent-grafts and warranty patency. Conclusion: This is the first report in the literature of chimney grafting in PRAA for complete revascularization of visceral and renal branches by using more than two covered stents introduced from one side through one single sheath. However this technique is modified, it should be used only in bailout situations when branched stent-grafts are not available and/or surgery is not suitable.

  1. Fenestrated Stent Graft Repair of Abdominal Aortic Aneurysm: Hemodynamic Analysis of the Effect of Fenestrated Stents on the Renal Arteries

    Energy Technology Data Exchange (ETDEWEB)

    Sun, Zhonghua; Chaichana, Thanapong [Curtin University of Technology, Perth (Australia)

    2010-02-15

    We wanted to investigate the hemodynamic effect of fenestrated stents on the renal arteries with using a fluid structure interaction method. Two representative patients who each had abdominal aortic aneurysm that was treated with fenestrated stent grafts were selected for the study. 3D realistic aorta models for the main artery branches and aneurysm were generated based on the multislice CT scans from two patients with different aortic geometries. The simulated fenestrated stents were designed and modelled based on the 3D intraluminal appearance, and these were placed inside the renal artery with an intra-aortic protrusion of 5.0-7.0 mm to reflect the actual patients' treatment. The stent wire thickness was simulated with a diameter of 0.4 mm and hemodynamic analysis was performed at different cardiac cycles. Our results showed that the effect of the fenestrated stent wires on the renal blood flow was minimal because the flow velocity was not significantly affected when compared to that calculated at pre-stent graft implantation, and this was despite the presence of recirculation patterns at the proximal part of the renal arteries. The wall pressure was found to be significantly decreased after fenestration, yet no significant change of the wall shear stress was noticed at post-fenestration, although the wall shear stress was shown to decrease slightly at the proximal aneurysm necks. Our analysis demonstrates that the hemodynamic effect of fenestrated renal stents on the renal arteries is insignificant. Further studies are needed to investigate the effect of different lengths of stent protrusion with variable stent thicknesses on the renal blood flow, and this is valuable for understanding the long-term outcomes of fenestrated repair.

  2. Fenestrated Stent Graft Repair of Abdominal Aortic Aneurysm: Hemodynamic Analysis of the Effect of Fenestrated Stents on the Renal Arteries

    International Nuclear Information System (INIS)

    Sun, Zhonghua; Chaichana, Thanapong

    2010-01-01

    We wanted to investigate the hemodynamic effect of fenestrated stents on the renal arteries with using a fluid structure interaction method. Two representative patients who each had abdominal aortic aneurysm that was treated with fenestrated stent grafts were selected for the study. 3D realistic aorta models for the main artery branches and aneurysm were generated based on the multislice CT scans from two patients with different aortic geometries. The simulated fenestrated stents were designed and modelled based on the 3D intraluminal appearance, and these were placed inside the renal artery with an intra-aortic protrusion of 5.0-7.0 mm to reflect the actual patients' treatment. The stent wire thickness was simulated with a diameter of 0.4 mm and hemodynamic analysis was performed at different cardiac cycles. Our results showed that the effect of the fenestrated stent wires on the renal blood flow was minimal because the flow velocity was not significantly affected when compared to that calculated at pre-stent graft implantation, and this was despite the presence of recirculation patterns at the proximal part of the renal arteries. The wall pressure was found to be significantly decreased after fenestration, yet no significant change of the wall shear stress was noticed at post-fenestration, although the wall shear stress was shown to decrease slightly at the proximal aneurysm necks. Our analysis demonstrates that the hemodynamic effect of fenestrated renal stents on the renal arteries is insignificant. Further studies are needed to investigate the effect of different lengths of stent protrusion with variable stent thicknesses on the renal blood flow, and this is valuable for understanding the long-term outcomes of fenestrated repair

  3. Development of stroke-induced quadriplegia after endovascular repair of blunt aortic injury pseudoaneurysm.

    Science.gov (United States)

    Amoudi, Abdullah S; Merdad, Anas A; Makhdoom, Ahmed Q; Jamjoom, Reda A

    2015-01-01

    Endovascular repair of blunt aortic injury is now a first-line approach in management. This can warrant coverage of the left subclavian artery (LSA), which could lead to posterior strokes. In this case report, we present a severe complication of endovascular repair of a traumatic aortic aneurysm. A 53-year-old man presented with blunt aortic injury, endovascular repair was carried out where the left subclavian artery was covered. The intervention had a 100% technical success. Twelve hours later, he was discovered to have quadriplegia, a CT scan showed a large left cerebellar infarction extending to the medulla oblongata and proximal spinal cord. Strokes complicate 3% of thoracic endovascular aortic repairs, 80% of those strokes occur in patients who had their LSA`s covered. Most patients however, tolerate the coverage. Although our patient had a dominant right vertebral artery, and lacked risks for these strokes, he developed an extensive stroke that left him quadriplegic.

  4. Evaluation of the thrombus of abdominal aortic aneurysms using contrast enhanced ultrasound - preliminary results

    Science.gov (United States)

    Łukasiewicz, Adam; Garkowski, Adam; Rutka, Katarzyna; Janica, Jacek; Łebkowska, Urszula

    2016-09-01

    It is hypothesized that the degree of vascularization of the thrombus may have a significant impact on the rupture of aortic aneurysms. The presence of neovascularization of the vessel wall and mural thrombus has been confirmed only in histopathological studies. However, no non-invasive imaging technique of qualitative assessment of thrombus and neovascularization has been implemented so far. Contrast-enhanced ultrasound (CEUS) has been proposed as a feasible and minimally invasive technique for in vivo visualization of neovascularization in the evaluation of tumors and atherosclerotic plaques. The aim of this study was the evaluation of mural thrombus and AAAs wall with CEUS. CEUS was performed in a group of seventeen patients with AAAs. The mural thrombus enhancement was recognized in 12 cases, yet no significant correlation between the degree of contrast enhancement and AAAs diameter, thrombus width, and thrombus echogenicity was found. We observed a rise in AAAs thrombus heterogeneity with the increase in the aneurysm diameter (r = 0.62, p = 0.017). In conclusion CEUS can visualize small channels within AAAs thrombus, which could be a result of an ongoing angiogenesis. There is a need for further research to find out whether the degree of vascularization of the thrombus may have a significant impact on the rupture of aneurysms.

  5. Medical image of the week: massive abdominal aortic aneurysm

    Directory of Open Access Journals (Sweden)

    Larson M

    2016-07-01

    Full Text Available No abstract available. Article truncated at 150 words. An 88 year-old presented to the emergency department with left flank and lower back pain as well as lower abdominal fullness. The fullness had started 2 days prior, but the left flank pain acutely started in the early morning before presenting. He had a history of unmedicated hypertension, hyperlipidemia, and mild vertigo. His review of systems was positive for chills and difficulty urinating but no hematuria. He was a non-smoker, and had undergone orthopedic surgeries but had otherwise avoided emergent hospitalizations. On exam, vitals were unremarkable; there was no flank nor costovertebral angle tenderness; however, a midline pulsatile mass was present. An initial non-contrast CT abdomen/pelvis revealed a massive abdominal aortic aneurysm (AAA, Figure 1. Follow-up CT angiogram of the AAA can be seen in Figure 2. Upon further questioning, he had undergone a research study some 30 years earlier involving ultrasound to screen for AAA and was told he ...

  6. Pathogenesis of Abdominal Aortic Aneurysms: Role of Nicotine and Nicotinic Acetylcholine Receptors

    Directory of Open Access Journals (Sweden)

    Zong-Zhuang Li

    2012-01-01

    Full Text Available Inflammation, proteolysis, smooth muscle cell apoptosis, and angiogenesis have been implicated in the pathogenesis of abdominal aortic aneurysms (AAAs, although the well-defined initiating mechanism is not fully understood. Matrix metalloproteinases (MMPs such as MMP-2 and -9 and other proteinases degrading elastin and extracellular matrix are the critical pathogenesis of AAAs. Among the risk factors of AAAs, cigarette smoking is an irrefutable one. Cigarette smoke is practically involved in various aspects of the AAA pathogenesis. Nicotine, a major alkaloid in tobacco leaves and a primary component in cigarette smoke, can stimulate the MMPs expression by vascular SMCs, endothelial cells, and inflammatory cells in vascular wall and induce angiogenesis in the aneurysmal tissues. However, for the inflammatory and apoptotic processes in the pathogenesis of AAAs, nicotine seems to be moving in just the opposite direction. Additionally, the effects of nicotine are probably dose dependent or associated with the exposure duration and may be partly exerted by its receptors—nicotinic acetylcholine receptors (nAChRs. In this paper, we will mainly discuss the pathogenesis of AAAs involving inflammation, proteolysis, smooth muscle cell apoptosis and angiogenesis, and the roles of nicotine and nAChRs.

  7. Proposta para padronização do relatório de tomografia computadorizada nos aneurismas da aorta abdominal A proposal for standardizing computed tomography reports on abdominal aortic aneurysms

    Directory of Open Access Journals (Sweden)

    Fabiola Goda Torlai

    2006-08-01

    Full Text Available OBJETIVO: Propor um modelo de padronização de relatório para aneurisma da aorta abdominal na tomografia computadorizada. MATERIAIS E MÉTODOS: Foram realizadas, no período de abril a outubro de 2004, entrevistas com integrantes da Disciplina de Cirurgia Vascular da nossa instituição, para elaboração de um modelo de padronização de relatório de tomografia computadorizada para o estudo do aneurisma da aorta abdominal. A partir deste modelo foi elaborado um questionário, enviado a nove outros cirurgiões, todos com experiência em cirurgia da aorta abdominal. O índice de resposta aos questionários foi de 55,5% (5/9. RESULTADOS: Os parâmetros de interesse citados mais freqüentemente para a avaliação dos aneurismas de aorta abdominal foram: diâmetro máximo do colo proximal, extensão do colo proximal até a artéria renal mais baixa, forma do colo proximal, diâmetro máximo do aneurisma e diâmetro das artérias ilíacas comuns. Estes dados permitiram elaborar uma proposta de modelo para padronização de relatório na tomografia computadorizada. CONCLUSÃO: Um modelo para a análise tomográfica padronizada do aneurisma de aorta abdominal permite atender às necessidades dos cirurgiões vasculares para acompanhar a evolução e planejar o tratamento destes pacientes.OBJECTIVE: To propose a model to standardize computed tomography reports on abdominal aortic aneurysms. MATERIALS AND METHODS: Interviews were carried out with members of Vascular Surgery Division of our institution, in the period between April and October 2004, aiming at developing a standardized model of computed tomography reports on abdominal aortic aneurysms. Based on this model, a questionnaire was elaborated and sent to other nine surgeons, all of them experienced in the field of abdominal aortic surgery. The questionnaires response rate was 55.5% (5/9. RESULTS: The most frequently mentioned parameters of interest for evaluation of abdominal aortic aneurysms

  8. Overexpression of Catalase in Vascular Smooth Muscle Cells Prevents the Formation of Abdominal Aortic Aneurysms

    Science.gov (United States)

    Parastatidis, Ioannis; Weiss, Daiana; Joseph, Giji; Taylor, W Robert

    2013-01-01

    Objective Elevated levels of oxidative stress have been reported in abdominal aortic aneurysms (AAA), but which reactive oxygen species (ROS) promotes the development of AAA remains unclear. Here we investigate the effect of the hydrogen peroxide (H2O2) degrading enzyme catalase on the formation of AAA. Approach and Results AAA were induced with the application of calcium chloride (CaCl2) on mouse infrarenal aortas. The administration of PEG-catalase, but not saline, attenuated the loss of tunica media and protected against AAA formation (0.91±0.1 mm vs. 0.76±0.09 mm). Similarly, in a transgenic mouse model, catalase over-expression in the vascular smooth muscle cells (VSMC) preserved the thickness of tunica media and inhibited aortic dilatation by 50% (0.85±0.14 mm vs. 0.57±0.08 mm). Further studies showed that injury with CaCl2 decreased catalase expression and activity in the aortic wall. Pharmacologic administration or genetic over-expression of catalase restored catalase activity and subsequently decreased matrix metalloproteinase activity. In addition, a profound reduction in inflammatory markers and VSMC apoptosis was evident in aortas of catalase over-expressing mice. Interestingly, as opposed to infusion of PEG-catalase, chronic over-expression of catalase in VSMC did not alter the total aortic H2O2 levels. Conclusions The data suggest that a reduction in aortic wall catalase activity can predispose to AAA formation. Restoration of catalase activity in the vascular wall enhances aortic VSMC survival and prevents AAA formation primarily through modulation of matrix metalloproteinase activity. PMID:23950141

  9. Impact of Discordant Views in the Management of Descending Thoracic Aortic Aneurysm.

    Science.gov (United States)

    Chiu, Peter; Sailer, Anna-Margaretha; Baiocchi, Michael; Goldstone, Andrew B; Schaffer, Justin M; Trojan, Jeff; Fleischmann, Dominik; Mitchell, R Scott; Miller, D Craig; Dake, Michael D; Woo, Y Joseph; Lee, Jason T; Fischbein, Michael P

    2017-01-01

    Thoracic endovascular aortic repair has a lower perceived risk than open surgical repair and has become an increasingly popular alternative. Whether general consensus exists regarding candidacy for either operation among open and endovascular specialists is unknown. A retrospective review of isolated descending thoracic aortic aneurysm at our institution between January 2005 and October 2015 was performed, excluding trauma and dissection. Two cardiac surgeons, 2 cardiovascular surgeons, 1 vascular surgeon, and 1 interventional radiologist gave their preference for open vs endovascular repair. Interobserver agreement was assessed with the kappa coefficient. k-means clustering agnostically grouped various patterns of agreement. The mean rating was predicted using least absolute shrinkage and selection operator regression. Negative binomial regression predicted the discrepancy between our panel of raters and the historical operation. Generalized estimating equation modeling was then used to evaluate the association between the extent of discrepancy and the adverse perioperative outcome. There were 77 patients with preoperative imaging studies. Pairwise interobserver agreement was only fair (median weighted kappa 0.270 [interquartile range 0.211-0.404]). Increasing age and proximal neck length predicted an increasing preference for thoracic endovascular aortic repair in our panel; larger proximal neck diameter predicted a general preference for open surgical repair. Increasing proximal neck diameter predicted a larger discrepancy between our panel and the historical operation. Greater discrepancy was associated with adverse outcome. Substantial disagreement existed among our panel, and an exploratory analysis of the effect of increasing discrepancy demonstrated an association with adverse perioperative outcome. An investigation of the effect of a thoracic aortic team with open and endovascular specialists is warranted. Copyright © 2017 Elsevier Inc. All rights

  10. Separate origins of the left internal and external carotid arteries from the aortic arch and cervical internal carotid artery aneurysm in a patient with Noonan syndrome.

    Science.gov (United States)

    Tahir, Rizwan Ahmad; Asmaro, Karam; Pabaney, Aqueel; Kole, Max; Nypaver, Timothy; Marin, Horia

    2017-04-01

    Distinct origins of the external carotid artery and the internal carotid artery (ICA) from the aortic arch have been rarely described, and represent an aberrant development of the aortic arches during fetal life. This anatomical variation is usually discovered incidentally; infrequently, an aneurysm of the cervical ICA might accompany this rare configuration. We describe one such case in a patient with Noonan syndrome who presented with pulsatile neck mass. The diagnostic features and management of the aneurysm and a review of the literature are presented. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

  11. Potential Long-Term Complications of Endovascular Stent Grafting for Blunt Thoracic Aortic Injury

    Directory of Open Access Journals (Sweden)

    Larry E. Miller

    2012-01-01

    Full Text Available Blunt thoracic aortic injury (BTAI is a rare, but lethal, consequence of rapid deceleration events. Most victims of BTAI die at the scene of the accident. Of those who arrive to the hospital alive, expedient aortic intervention significantly improves survival. Thoracic endovascular aortic repair (TEVAR has been accepted as the standard of care for BTAI at many centers, primarily due to the convincing evidence of lower mortality and morbidity in comparison to open surgery. However, less attention has been given to potential long-term complications of TEVAR for BTAI. This paper focuses on these complications, which include progressive aortic expansion with aging, inadequate stent graft characteristics, device durability concerns, long-term radiation exposure concerns from follow-up computed tomography scans, and the potential for (Victims of Modern Imaging Technology VOMIT.

  12. Endovascular repair of para-anastomotic aortoiliac aneurysms.

    LENUS (Irish Health Repository)

    Tsang, Julian S

    2009-11-01

    The purpose of this study is to evaluate the use of endovascular stent grafts in the treatment of para-anastomotic aneurysms (PAAs) as an alternative to high-risk open surgical repair. We identified all patients with previous open aortic aneurysm repair who underwent infrarenal endovascular aneurysm repair (EVAR) at our institution from June 1998 to April 2007. Patient demographics, previous surgery, and operative complications were recorded. One hundred forty-eight patients underwent EVAR during the study period and 11 patients had previous aortic surgery. Of these 11 redo patients, the mean age was 62 years at initial surgery and 71 years at EVAR. All patients were male. Initial open repair was for rupture in five (45%) patients. The average time between initial and subsequent reintervention was 9 years. All patients were ASA Grade III or IV. Fifty-five percent of the PAAs involved the iliac arteries, 36% the abdominal aorta, and 9% were aortoiliac. Ten patients had endovascular stent-grafts inserted electively, and one patient presented with a contained leak. Aorto-uni-iliac stent-grafts were deployed in seven patients, and bifurcated stent-grafts in four patients. A 100% successful deployment rate was achieved. Perioperative mortality was not seen and one patient needed surgical reintervention to correct an endoleak. Endovascular repair of PAAs is safe and feasible. It is a suitable alternative and has probably now become the treatment of choice in the management of PAAs.

  13. Polymorphisms of the MMP-9 gene and abdominal aortic aneurysm

    Science.gov (United States)

    Smallwood, Linda; Allcock, Richard; van Bockxmeer, Frank; Warrington, Nicole; Palmer, Lyle J; Iacopetta, Barry; Golledge, Jonathan; Norman, Paul E

    2008-01-01

    Background Increased matrix metalloproteinase-9 (MMP-9) activity has been implicated in the formation of abdominal aortic aneurysms (AAAs). The aim of the present study was to explore the association between potentially functional variants of the MMP-9 gene and AAA. Method The −1562C>T and −1811A>T variants of the MMP-9 gene were genotyped in 678 men with AAAs (>30mm in diameter) and 659 controls (aortic diameter 19−22mm) recruited from a population-based trial of screening for AAAs. The levels of MMP-9 were measured in a random subset of 300 cases and 84 controls. The association between genetic variants (including haplotypes) and AAA was assessed using multivariate logistic regression. Results There was no association between the MMP-9 −1562C>T (OR 0.70 95%CI 0.27, 1.82) or −1811A>T (OR 0.71, 95%CI 0.28, 1.85) genotypes, or the most common haplotype (OR 0.81 95%CI 0.62, 1.05), and AAA. The serum MMP-9 concentration (ng/mL) was higher in cases than controls and in minor allele carriers in cases and controls although the differences were not statistically significant. Conclusion The results suggest that a genetic tendency to have higher levels of circulating MMP-9 is not associated with AAAs. PMID:18763261

  14. Intensive Care Management of Thoracic Aortic Surgical Patients, Including Thoracic and Infradiaphragmatic Endovascular Repair (EVAR/TEVAR).

    Science.gov (United States)

    Cole, Sheela Pai

    2015-12-01

    The patient with thoracic aortic disease can present for open or endovascular repair. Thoracic endovascular aortic repair (TEVAR) has emerged as a minimally invasive option for a multitude of aortic pathology, including dissections, aneurysms, traumatic injuries, and ulcers. Postoperative management of these patients depends on the extent of procedure, whether it was open or endovascular, and, finally, on the preoperative comorbidities present. While procedural success has catapulted TEVAR to popularity, midterm results have been mixed. Additionally, periprocedural complications such as paraplegia and renal failure remain a significant morbidity in these patients. © The Author(s) 2015.

  15. Transcatheter closure of ruptured sinus of valsalva aneurysms: evaluation of therapeutic results

    International Nuclear Information System (INIS)

    Wu Guangwei; Xu Nengwen; Wang Mengjie; Wu Xubin

    2014-01-01

    Objective: To discuss the clinical effects and safety, of transcatheter closure in treating ruptured sinus of valsalva aneurysm (RSVA). Methods: During the period from May 2007 to June 2012, 5 patients (4 males and 1 female) with RSVA were treated with interventional occlusion therapy at authors' hospital. The aortic root angiography and echocardiography indicated that all the five patients had single sinus of valsalva aneurysm, including rupture of right coronary sinus of valsalva aneurysm into the right ventricle (n=3) and into the right atrium (n=2). Results: The occluder placement was successfully accomplished in all the 5 patients. Patent arterial duct occluder was employed in two patients, while ventricular septal defect occluder was adopted in three patients, After the procedure, the five patients were followed up for 12- 60 months (mean 30.2 months), and echocardiography and electrocardiography were conducted to evaluate the clinical effects. After the interventional occlusion therapy, in all patients the inner-diameters of the right ventricular and right atrium were markedly reduced, and the heart murmur disappeared. The occluder was situated in the right place. No complications such as hemolysis or aortic regurgitation occurred. Conclusion: Transcatheter closure is a mini-invasive, safe, simple and effective technique for the treatment of ruptured sinus of valsalva aneurysm. The short-term result is satisfactory, although its long-term efficacy needs to be further studied. (authors)

  16. Losartan prevents from the formation and interferes with the development of calcium chloride-induced abdominal aortic aneurysms

    International Nuclear Information System (INIS)

    Yan Huimin; Cui Bing; Yang Hongzhen; Hu Zhuowei; Chen Zhong; Tang Xiaobin

    2010-01-01

    Objective: Abdominal aortic aneurysm (AAA), a chronic inflammatory vascular disorder, results in progressive expansion and rupture of the aorta with high mortality among the elderly. Multiple factors contribute to the pathogenesis of AAA that somehow induces aneurysmal manifestations. There are no effective drugs available currently. This study aims to find out whether losartan, an angiotensin II type 1 receptor (AT1) antagonist, can prevent and treat the CaCl 2 -induced AAA. Methods: We chose periaortic application of 0.5 mol/L CaCl 2 -induced mouse AAA model. Ultrasonographic and histological studies were conducted to evaluate the formation of AAA in mice. Results: Losartan not only protected against the formation of AAA, but also hindered the development of AAA. Losartan reduced aortic expansion and elastic lamina degradation. Conclusion: The prophylactic and therapeutic effects of losartan are associated with the regulation of vascular fibrosis and inflammation. Losartan inhibits the infiltration of inflammatory cells and decreases the expression of several cytokines in the vascular tissue of AAA. Our studies will provide insight into the pathogenesis of AAA induced by CaCl 2 and offer more evidence that losartan has a great potential for the development of therapeutic agents against AAA. (authors)

  17. Endovascular stent-graft management of thoracic aortic diseases

    International Nuclear Information System (INIS)

    Dake, Michael D.

    2001-01-01

    The traditional standard therapy for descending thoracic aortic aneurysm (TAA) is open operative repair with graft replacement of the diseased aortic segment. Despite important advances in surgical techniques, anesthetic management, and post-operative care over the last 30 years, the mortality and morbidity of surgery remains considerable, especially in patients at high risk for thoracotomy because of coexisting severe cardiopulmonary abnormalities or other medical diseases. The advent of endovascular stent-graft technology provides an alternative to open surgery for selected patients with TAA. The initial experience suggests that stent-graft therapy potentially may reduce the operative risk, hospital stay and procedural expenses of TAA repair. These potential benefits are especially attractive for patients at high risk for open TAA repair. Current results of endovascular TAA therapy document operative mortalities of between 0 and 4%, aneurysm thrombosis in 90 and 100% of cases, and paraplegia as a complication in 0 and 1.6% of patients. The early success of stent-graft repair of TAA has fostered the application of these devices for the management of a wide variety of thoracic aortic pathologies, including acute and chronic dissection, intramural hematoma, penetrating ulcer, traumatic injuries, and other diseases. The results of prospective controlled trials that compare the outcomes of stent-graft therapy with those of surgical treatment in patients with specific types of aortic disease are anxiously awaited before recommendations regarding the general use of these new devices can be made with confidence

  18. Variation in Medicare Expenditures for Treating Perioperative Complications: The Cost of Rescue.

    Science.gov (United States)

    Pradarelli, Jason C; Healy, Mark A; Osborne, Nicholas H; Ghaferi, Amir A; Dimick, Justin B; Nathan, Hari

    2016-12-21

    Treating surgical complications presents a major challenge for hospitals striving to deliver high-quality care while reducing costs. Costs associated with rescuing patients from perioperative complications are poorly characterized. To evaluate differences across hospitals in the costs of care for patients surviving perioperative complications after major inpatient surgery. Retrospective cohort study using claims data from the Medicare Provider Analysis and Review files. We compared payments for patients who died vs patients who survived after perioperative complications occurred. Hospitals were stratified using average payments for patients who survived following complications, and payment components were analyzed across hospitals. Administrative claims database of surgical patients was analyzed at hospitals treating Medicare patients nationwide. This study included Medicare patients aged 65 to 100 years who underwent abdominal aortic aneurysm repair (n = 69 207), colectomy for cancer (n = 107 647), pulmonary resection (n = 91 758), and total hip replacement (n = 307 399) between 2009 and 2012. Data analysis took place between November 2015 and March 2016. Clinical outcome of surgery (eg, no complication, complication and death, or complication and survival) and the individual hospital where a patient received an operation. Risk-adjusted, price-standardized Medicare payments for an episode of surgery. Risk-adjusted perioperative outcomes were also assessed. The mean age for Medicare beneficiaries in this study ranged from 74.1 years (pulmonary resection) to 78.2 years (colectomy). The proportion of male patients ranged from 37% (total hip replacement) to 77% (abdominal aortic aneurysm repair), and most patients were white. Among patients who experienced complications, those who were rescued had higher price-standardized Medicare payments than did those who died for all 4 operations. Assessing variation across hospitals, payments for patients

  19. Can Early Computed Tomography Angiography after Endovascular Aortic Aneurysm Repair Predict the Need for Reintervention in Patients with Type II Endoleak?

    Energy Technology Data Exchange (ETDEWEB)

    Dudeck, O., E-mail: oliver.dudeck@med.ovgu.de [University of Magdeburg, Department of Radiology and Nuclear Medicine (Germany); Schnapauff, D. [Charité Universitätsmedizin Berlin, Department of Radiology (Germany); Herzog, L.; Löwenthal, D.; Bulla, K.; Bulla, B. [University of Magdeburg, Department of Radiology and Nuclear Medicine (Germany); Halloul, Z.; Meyer, F. [University of Magdeburg, Department of General, Visceral and Vascular Surgery (Germany); Pech, M. [University of Magdeburg, Department of Radiology and Nuclear Medicine (Germany); Gebauer, B. [Charité Universitätsmedizin Berlin, Department of Radiology (Germany); Ricke, J. [University of Magdeburg, Department of Radiology and Nuclear Medicine (Germany)

    2015-02-15

    PurposeThis study was designed to identify parameters on CT angiography (CTA) of type II endoleaks following endovascular aortic aneurysm repair (EVAR) for abdominal aortic aneurysm (AAA), which can be used to predict the subsequent need for reinterventions.MethodsWe retrospectively identified 62 patients with type II endoleak who underwent early CTA in mean 3.7 ± 1.9 days after EVAR. On the basis of follow-up examinations (mean follow-up period 911 days; range, 373–1,987 days), patients were stratified into two groups: those who did (n = 18) and those who did not (n = 44) require reintervention. CTA characteristics, such as AAA, endoleak, as well as nidus dimensions, patency of the inferior mesenteric artery, number of aortic branch vessels, and the pattern of endoleak appearance, were recorded and correlated with the clinical outcome.ResultsUnivariate and receiver operating characteristic curve regression analyses revealed significant differences between the two groups for the endoleak volume (surveillance group: 1391.6 ± 1427.9 mm{sup 3}; reintervention group: 3227.7 ± 2693.8 mm{sup 3}; cutoff value of 2,386 mm{sup 3}; p = 0.002), the endoleak diameter (13.6 ± 4.3 mm compared with 25.9 ± 9.6 mm; cutoff value of 19 mm; p < 0.0001), the number of aortic branch vessels (2.9 ± 1.2 compared with 4.2 ± 1.4 vessels; p = 0.001), as well as a “complex type” endoleak pattern (13.6 %, n = 6 compared with 44.4 %, n = 8; p = 0.02).ConclusionsEarly CTA can predict the future need for reintervention in patients with type II endoleak. Therefore, treatment decision should be based not only on aneurysm enlargement alone but also on other imaging characteristics.

  20. Increased galectin-3 levels are associated with abdominal aortic aneurysm progression and inhibition of galectin-3 decrease elastase-induced AAA development

    DEFF Research Database (Denmark)

    Fernandez-García, Carlos-Ernesto; Tarin, Carlos; Roldan-Montero, Raquel

    2017-01-01

    Abdominal aortic aneurysm (AAA) evolution is unpredictable. Moreover, no specific treatment exists for AAA, except surgery to prevent aortic rupture. Galectin-3 has been previously associated with CVD, but its potential role in AAA have not been addressed. Galectin-3 levels were increased in plasma...... of AAA patients (n=225) compared to controls (n=100). Moreover, galectin-3 concentrations were associated with need for surgical repair, independently of potential confounding factors. Galectin-3 mRNA and protein expression were increased in human AAA samples compared to healthy aortas. Experimental AAA...... in mice was induced by aortic elastase perfusion. Mice were treated i.v. with the galectin-3 inhibitor modified citrus pectin (MCP, 10mg/kg, every other day) or saline. Similar to humans, galectin-3 serum and aortic mRNA levels were also increased in elastase-induced AAA mice compared to control mice...