WorldWideScience

Sample records for cava superior izquierda

  1. Ecocardiografia transesofágica e diagnóstico intraoperatório de veia cava superior esquerda persistente Ecocardiografía transesofágica y diagnóstico intraoperatorio de vena cava superior izquierda persistente Transesophageal echocardiography and intraoperative diagnosis of persistent left superior vena cava

    Directory of Open Access Journals (Sweden)

    Alexander Alves da Silva

    2009-12-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: A persistência da veia cava superior esquerda ocorre isoladamente em 0,5% da população normal, porém nos pacientes com cardiopatia congênita chega a estar presente em 3% a 10% dos casos. O objetivo deste relato foi apresentar um caso de diagnóstico intraoperatório com o auxílio da ecocardiografia transesofágica e ressaltar a importância da sua utilização rotineira em intervenções cirúrgicas para correção de cardiopatia congênita. RELATO DO CASO: Paciente do sexo masculino, 16 anos, ASA II, com diagnóstico prévio de comunicação interatrial (CIA tipo seio venoso superior com drenagem anômala parcial de veias pulmonares em programação para correção cirúrgica da cardiopatia. Após indução da anestesia geral foi realizado ecocardiograma transesofágico (ETE. O exame inicial mostrou dilatação das câmaras cardíacas direitas, CIA tipo seio venoso superior de 17 milímetros, drenagem anômala da veia pulmonar superior direita desembocando na veia cava superior (VCS direita e dilatação do seio coronário, o que aventou a possibilidade da persistência da veia cava superior esquerda. Para a confirmação da suspeita foram injetados no acesso venoso do braço esquerdo 10 mL de solução fisiológica a 0,9% (faz o papel de "contraste" no exame ecocardiográfico e imediatamente após foram visualizadas as microbolhas passando pelo seio coronário, teste positivo para o diagnóstico de VCS superior esquerda persistente. CONCLUSÕES: A ecocardiografia transesofágica rotineira no intraoperatório de pacientes com cardiopatia congênita tem fundamental importância como método auxiliar não só ao cirurgião, muitas vezes influenciando diretamente na técnica cirúrgica empregada, como também para o anestesiologista, que pode extrair do exame uma série de informações úteis no manuseio hemodinâmico do paciente.JUSTIFICATIVA Y OBJETIVOS: La persistencia de la vena cava superior izquierda ocurre

  2. Endovascular treatment of superior vena cava syndrome

    DEFF Research Database (Denmark)

    Duvnjak, Stevo; Andersen, Poul Erik

    2011-01-01

    clinically with superior vena cava syndrome and according caval stenosis confirmed by computed tomography. The causes of stenoses were non-small cell carcinoma in 22 patients and small cell carcinoma in 8 patients. RESULTS: In all patients the stents were placed as intended in all patients there was an...

  3. Tratamento da síndrome da veia cava superior Treatment of superior vena cava syndrome

    OpenAIRE

    Luís Marcelo Inaco Cirino; Rafael Ferreira Coelho; Ivan Dias da Rocha; Bernardo Pinheiro de Senna Nogueira Batista

    2005-01-01

    A veia cava superior é formada pela união das duas veias inominadas, direita e esquerda, e localiza-se no mediastino médio, à direita da artéria aorta e anteriormente à traquéia. A síndrome da veia cava superior representa um conjunto de sinais (dilatação das veias do pescoço, pletora facial, edema de membros superiores, cianose) e sintomas (cefaléia, dispnéia, tosse, edema de membro superior, ortopnéia e disfagia) decorrentes da obstrução do fluxo sanguíneo através da veia cava superior em d...

  4. Angiosarcoma of the superior vena cava

    International Nuclear Information System (INIS)

    The first reported case of an angiosarcoma apparently arising from the superior vena cava is presented. The patient, a 20-year-old white man, was treated by surgical excision and reconstruction with dacron grafts from the left and right brachiocephalic veins to the right atrium. This was followed by a course of mediastinal irradiation. The patient remained clinically disease-free at 24 months post-treatment. The patient had occasional occupational exposure to polyvinyl chloride

  5. Angiosarcoma of the superior vena cava

    Energy Technology Data Exchange (ETDEWEB)

    Abratt, R.P.; Williams, M.; Raff, M.; Dodd, N.F.; Uys, C.J.

    1983-08-15

    The first reported case of an angiosarcoma apparently arising from the superior vena cava is presented. The patient, a 20-year-old white man, was treated by surgical excision and reconstruction with dacron grafts from the left and right brachiocephalic veins to the right atrium. This was followed by a course of mediastinal irradiation. The patient remained clinically disease-free at 24 months post-treatment. The patient had occasional occupational exposure to polyvinyl chloride.

  6. Superior vena cava syndrome in children.

    OpenAIRE

    Gupta, Vineeta; Ambati, Srikanth R.; Pant, P.; Bhatia, Baldev

    1981-01-01

    Superior vena cava syndrome (SVCS) is rare in childhood. 18 cases of SVCS were seen in children ranging from 3–14 years with a mean age of 8.8 years. There were 15 males and 3 female children. Diagnosis could be confirmed in 17 cases as one child succumbed to severe respiratory distress without a definitive diagnosis. The commonest cause of SVCS was lymphoma. Non-Hodgkin’s lymphoma (NHL) was more common than Hodgkin’s disease. In two cases the final diagnosis was tuberculosis of mediastinal l...

  7. Superior vena cava syndrome in hemodialysis patient

    Directory of Open Access Journals (Sweden)

    Azeb Molhem

    2011-01-01

    Full Text Available Obstruction of blood flow in the superior vena cava (SVC results in symptoms and signs of SVC syndrome. SVC obstruction can be caused either by invasion or external compression of the SVC by contagious pathologic processes involving the right lung, lymph nodes, and other mediastinal structures, or by thrombosis of blood within the SVC. Occasionally, both mechanisms co-exist. We hereby report a case of a 28-year-old male, Saudi patient who was diagnosed with end-stage renal disease and was maintained on regular hemodiaysis via right jugular vein dual lumen catheter for ten months. Three years later, the patient presented with signs and symptoms suggestive of SVC obstruction that was successfully managed with SVC stenting.

  8. Right superior vena cava draining into the left atrium

    International Nuclear Information System (INIS)

    The right superior vena cava draining into the left atrium is a rare malformation causing cyanosis and clubbing in patients in whom no other signs of congenital heart defect are present. Diagnosis may be difficult as cyanosis may be mild and the anomaly is not always easily detectable by echocardiography. For this reason we report a 13-month-old male in whom we confirmed the clinical and echocardiographic suspicion of anomalous drainage of the right superior vena cava using multidetector CT. This allowed successful surgical reconnection of the right superior vena cava to the right atrium. (orig.)

  9. Superior vena cava syndrome: A radiation oncologist's perspective.

    Science.gov (United States)

    Talapatra, Kaustav; Panda, Soumadip; Goyle, Sandeep; Bhadra, Kallol; Mistry, Rajesh

    2016-01-01

    Superior vena cava syndrome is referred to as a constellation of symptoms and signs caused by obstruction of superior vena cava. It can occur due to both benign and malignant causes with the latter being the predominant. There is a paradigm shift in the approach to manage this condition. It is no longer considered a medical emergency and histological diagnosis is necessary before treatment. This article reviews the causes, symptoms, pathophysiology, and overall management policy which have changed over decades. PMID:27461602

  10. Large hemangioma in a persistent left superior vena cava.

    Science.gov (United States)

    Hu, Wen; Wang, Xiang; Tan, Sichuang; Fan, Songqing; Liu, Jun; Yu, Fenglei; Tang, Jingqun

    2012-12-01

    Cardiac hemangiomas represent 1 to 2% of all detected benign heart tumors. Tumors in the coronary sinus have been reported; however, to our knowledge, there have been no reports of masses in a persistent left superior vena cava. We report here the first case of a 58-year-old man with a rare huge unicamerate cardiac hemangiomas in a persistent left superior vena cava. A communication vein between the coronary sinus and hemangiomas could be identified, and thrombus formation was found in the hemangiomas as well. PMID:23180384

  11. Primary lung lymphoma involving the superior vena cava

    Directory of Open Access Journals (Sweden)

    Wei Sen

    2012-06-01

    Full Text Available Abstract Primary lung lymphoma (PLL presenting as a primary pulmonary lesion is rare and usually affects elderly people. Here we describe a 25-year-old Chinese man diagnosed with primary lung lymphoma, which presented as a huge lung tumor mimicking a primary lung cancer and involving the superior vena cava. He underwent double-sleeve reconstructions of bronchus and pulmonary arteries with right upper- and middle-lobe lobectomy along with replacement of the superior vena cava with a graft, and was then given standard chemotherapy of CHOP plus Rituximab. The patient has been well, showing no local recurrence or distal metastasis during a 27-month follow-up.

  12. [Mediastinal Mature Teratoma Necessitating Resection of Superior Vena Cava].

    Science.gov (United States)

    Aragaki, Masato; Iimura, Yasuaki; Hasegawa, Naoto; Kaga, Kichizo

    2015-09-01

    A 43-year-old woman was referred to our hospital for an abnormal shadow on chest X-ray. Computed tomography revealed a tumor with calcification of 9.8 cm in size at the anterior mediastinum. The infiltration into the left brachiocephalic vein and superior vena cava by tumor was suspected. Surgery was performed under a diagnosis of mature teratoma. The tumor was found to adhere firmly to superior vena cava (SVC), left brachiocephalic vein, right phrenic nerve, and the arch of the azygos vein. To ensure the blood flow, an artificial blood vessel was placed between left brachiocephalic vein and right atrium. Then SVC was clamped and the tumor was resected with the part of SVC. PMID:26329629

  13. Decompression of superior vena cava during bidirectional Glenn shunt

    OpenAIRE

    Kulkarni Venugopal; Mudunuri Ravikiran; Mulavisala Krishnaprasad; Byalal R

    2009-01-01

    Patients undergoing bi-directional Glenn shunt for various congenital anomalies of the heart will have their superior vena cava (SVC) clamped during the procedure. The duration of the procedure is variable, ranging from five to 30 minutes. This can affect the cerebral perfusion due to raised venous pressure [Cerebral blood flow = Mean arterial pressure − (Intracranial pressure + Central venous pressure)]. Shunting away the SVC blood is a well known technique to counter this probl...

  14. Acute lymphoid leukemia presenting with superior vena cava syndrome

    OpenAIRE

    Mohammad Emami Ardestani; Firouzeh Moeinzadeh

    2013-01-01

    When superior vena cava (SVC) compress or obstructed by internal or external pressure, we encounter to SVC syndrome. The cause of this compression is malignant or benign. Although the widespread use of permanent central venous access catheters coupled with the improved success of chemotherapy has increased the incidence of SVC syndrome not caused by direct tumor infiltration (non-malignant SVC syndrome) but SVC syndrome may be a sign of advanced malignancy. In this report, we present a 30-yea...

  15. Myofibroblastic tumor associated to superior vena cava syndrome

    International Nuclear Information System (INIS)

    Inflammatory myofibroblastic tumor (IMT) is an uncommon pathological entity of unknown cause, composed of differentiated myofibroblastic cells accompanied by plasma cells, lymphocytes and eosinophils, which involve extrapulmonary and pulmonary tissues. IMT has an unpredictable clinical course, rarely undergoes malignant transformation. Local invasion and involvement of the mediastinum and hiliar structures are unusual manifestations; however; we reports a case of superior vena cava syndrome and IMT

  16. Agenesia de cava superior associada a bloqueio atrioventricular de 3º grau Agenesis of the right superior vena cava associated with total heart block

    Directory of Open Access Journals (Sweden)

    Gustavo J. Ventura Couto

    2008-03-01

    Full Text Available A persistência de veia cava superior esquerda com ausência da veia cava superior é uma anomalia rara, principalmente quando associada a bloqueio atrioventricular de 3º grau. Relatamos o caso de uma paciente, na qual durante implante de marca-passo definitivo, para a correção de bloqueio atrioventricular total, foi detectada presença de veia cava superior esquerda com suspeição de ausência de veia cava superior, o que levou ao emprego de técnica diferenciada para fixação do eletrodo ventricular. Para confirmação da provável agenesia, foram realizados diversos exames complementares de imagem, demonstrando-se a dificuldade no diagnóstico da síndrome aqui descrita.The superior left vena cava with the absent superior vena cava is a rare abnormality, especially when associated with total heart block. We report a case of a patient in which the presence of superior left vena cava and the absence of the superior vena cava was detected during the implantation of a pacemaker for the correction of a total heart block, which led us to use a different technique for the fixation of the ventricular electrode. To confirm the supposed absence, several image exams were made showing the difficulty on the diagnosis of the described syndrome.

  17. Combined Double Sleeve Lobectomy and Superior Vena Cava Resection for Non-small Cell Lung Cancer with Persistent Left Superior Vena Cava.

    Science.gov (United States)

    Zhu, Daxing; Qiu, Xiaoming; Zhou, Qinghua

    2015-11-01

    A 65-year-old man with right central type of lung squamous carcinoma was admitted to our department. Bronchoscopy displayed complete obstruction of right upper lobe bronchus and infiltration of the bronchus intermedius with tumor. Chest contrast computed tomography revealed the tumor invaded right pulmonary artery, superior vena cava, and the persistant left superior vena cava flowed into the coronary sinus. The tumor was successfully removed by means of bronchial and pulmonary artery sleeve resection of the right upper and middle lobes combined with resection and reconstruction of superior vena cava (SVC) utilizing ringed polytetrafluoroethylene graft. To the best of our knowledge, this was the first report of complete resection of locally advanced lung cancer involving superior vena cava, right pulmonary artery trunk and main bronchus with persistant left superior vena cava. PMID:26582230

  18. Combined Double Sleeve Lobectomy and Superior Vena Cava Resection for Non-small Cell Lung Cancer with Persistent Left Superior Vena Cava

    Directory of Open Access Journals (Sweden)

    Daxing ZHU

    2015-11-01

    Full Text Available A 65-year-old man with right central type of lung squamous carcinoma was admitted to our department. Bronchoscopy displayed complete obstruction of right upper lobe bronchus and infiltration of the bronchus intermedius with tumor. Chest contrast computed tomography revealed the tumor invaded right pulmonary artery, superior vena cava, and the persistant left superior vena cava flowed into the coronary sinus. The tumor was successfully removed by means of bronchial and pulmonary artery sleeve resection of the right upper and middle lobes combined with resection and reconstruction of superior vena cava (SVC utilizing ringed polytetrafluoroethylene graft. To the best of our knowledge, this was the first report of complete resection of locally advanced lung cancer involving superior vena cava, right pulmonary artery trunk and main bronchus with persistant left superior vena cava.

  19. Síndrome de veia cava superior Superior vena cava syndrome

    Directory of Open Access Journals (Sweden)

    SAMUEL ZUÍNGLIO DE BIASI CORDEIRO

    2002-09-01

    Full Text Available A obstrução ao fluxo sanguíneo na VCS e suas manifestações clínicas têm hoje como causa principal o câncer de pulmão. A história relata que no século XVIII a sífilis e a tuberculose eram responsáveis por 40% dos casos conhecidos. O conhecimento das alterações hemodinâmicas compreendidas nesta síndrome assim como a apuração das técnicas de diagnóstico de imagem e de citopatologia permitem hoje que o médico possa tratar de seu paciente com mais segurança e conforto do que há 10 anos. A TC contrastada e a RM auxiliam no diagnóstico de localização da obstrução e técnicas mais antigas como a cavografia puderam ser abandonadas. O diagnóstico de obstrução da VCS e o estudo por Doppler realizado à beira do leito em muito contribuem para a realização de procedimentos de desobstrução como a angioplastia transluminal percutânea nos casos de trombose ou estenose do vaso. Também a utilização de próteses como PTFE é de importância fundamental na condução de casos de lesão traumática da VCS durante cirurgias para câncer pulmonar ou mediastinal. No campo da radioterapia, a técnica de fracionamento permite que altas doses de irradiação sejam administradas aos pacientes portadores de neoplasias malignas, com benefícios em 70% dos casos.Lung cancer is now the main cause of blood flow obstruction in the superior vena cava and of its clinical manifestations. History tells that in the 18th Century, syphilis and tuberculosis were responsible for 40% of the known cases. The knowledge of hemodynamic changes seen in this syndrome and the improvement of diagnostic and cytopathologic techniques allow for a safer and more comfortable treatment of the patient than 10 years ago. Contrast CT and MR added to the identification and location of the obstruction, and older techniques such as cavography could be abandoned. SVC obstruction diagnosis and Doppler studies carried out at the bed of the patient contribute to

  20. Ectopic Triggers of Superior Vena Cava in Atrial Fibrillation

    Directory of Open Access Journals (Sweden)

    Jayasree Pillarisetti MD

    2009-04-01

    Full Text Available Superior vena cava (SVC triggers constitute 6- 8% of non-pulmonary vein (PV foci that initiate atrial fibrillation (AF.1 Since SVC cardiomyocytes originate from the right sinus horn they possess enhanced automacity and after-depolarization leading to arrhythmogenicity.2 In a recent study by Arruda et al. 12% of patients had SVC triggers and empiric adjunctive isolation of SVC-right atrium along with PVisolation resulted in higher long term success rate than the group that underwent PVI alone. They demonstrated that adjunctive isolation of SVC along with PV isolation (PVI is a safe and feasible strategy for ablation of AF.

  1. A new Nitinol stent for use in superior vena cava syndrome

    DEFF Research Database (Denmark)

    Andersen, Poul Erik; Midtgaard, Annette; Brenøe, Anne-Sofie;

    2015-01-01

    time of stent deployment. RESULTS: All patients had superior vena cava obstruction and clinical superior vena cava syndrome caused by malignant expansive mediastinal disease (eight patients non-small cell lung cancer and four small cell lung cancer). The technical success with deployment of the stents......AIM: The aim of the study was to assess the early clinical experience with the Zilver Vena stent in treating patients with malignant superior vena cava syndrome. METHODS: Demographic, procedural, and follow-up data of 12 patients (seven women; mean age 69 years) treated for superior vena cava...

  2. Medical image of the week: persistent left superior vena cava

    Directory of Open Access Journals (Sweden)

    Hammode E

    2014-10-01

    Full Text Available No abstract available. Article truncated after 150 words. A 19 year old man with acute lymphocytic leukemia was admitted to the ICU with septic shock. Due to areas of cellulitis on the right side of the chest and neck and femoral venous thrombi, a left subclavian central access was attempted. The chest x-ray obtained after line placement is shown below (Figure 1. Blood gas done from the line was consistent with venous blood and venous tranduction was seen. A CT of the chest (Figure 2 confirmed the diagnosis of persistent left superior vena cava (PLSVC. A persistent left superior vena cava is the most common congenital thoracic venous anomaly, seen in 0.3-0.5% of the population (1. Incidence is increased in patients with congenital heart disease to 5%. In most patients a right sided SVC is also present; hence the term SVC duplication has also been used. Embryologically a PLSVC is formed when the left anterior cardinal vein is ...

  3. Abnormal draining of great cardiac vein into superior vena cava

    International Nuclear Information System (INIS)

    Full text: A 47-year-old man presented with atypical chest pain in last three months. Physical examination findings were normal. ECG showed normal sinus rhythm. Transthoracic echocardiography revealed normal left and right ventricular systolic functions. ECG gated coronary CT angiography was performed. The patient's coronary CT angiography showed normal coronary arteries, however the great cardiac vein course was abnormal. The course of the vein was not in atrioventicular groove, bypassing the coronary sinus and draining to superior vena cava. The coronary sinus of patient is formed by posterior marginal vein, middle cardiac vein and lateral marginal vein and drained into the right atrium. We also observed subtle myocardial bridges on coronary arteries. Myocardial bridges appeared to explain patient's chest pain. With optimal medical therapy, the patient's symptoms resolved

  4. A rare case of left superior vena cava draining into left atrium demonstrated by MDCT.

    Science.gov (United States)

    Ardilouze, Paul; Bricot, Vincent; Maurel, Christophe; Christiaens, Luc

    2009-01-01

    We describe a rare case of persistent left superior vena cava draining directly into the left atrium with no associated anomaly of the coronary sinus or the atrial septum, discovered by multidetector computed tomography. PMID:17692952

  5. Evaluation of superior vena cava syndrome by axial CT and CT phlebography

    International Nuclear Information System (INIS)

    Transverse axial computed tomography (CT) has been combined with CT digital phlebography to study nine patients with superior vena cava syndrome. Six were due to malignancy, two were secondary to benign disease, and one was a paraneoplastic manifestation. This combined CT approach successfully identified the abnormal morphology of the superior vena cava, demonstrating external compression, encasement, or intraluminal thrombus in all patients and the collateral venous channels in eight. This technique is a rapid, informative, and cost-effective method for the workup of superior vena cava syndrome. The CT digital phlebogram, however, is not successful in regularly and optimally opacifying the normal superior vena cava because of the limited amount of contrast material, dilution effect of the nonopacified incoming flow from the jugular and azygos veins, and the lack of image enhancement from the CT digital scanograms

  6. Evaluation of superior vena cava syndrome by axial CT and CT phlebography

    Energy Technology Data Exchange (ETDEWEB)

    Moncada, R.; Cardella, R.; Demos, T.C.; Churchill, R.J.; Cardoso, M.; Love, L.; Reynes, C.J.

    1984-10-01

    Transverse axial computed tomography (CT) has been combined with CT digital phlebography to study nine patients with superior vena cava syndrome. Six were due to malignancy, two were secondary to benign disease, and one was a paraneoplastic manifestation. This combined CT approach successfully identified the abnormal morphology of the superior vena cava, demonstrating external compression, encasement, or intraluminal thrombus in all patients and the collateral venous channels in eight. This technique is a rapid, informative, and cost-effective method for the workup of superior vena cava syndrome. The CT digital phlebogram, however, is not successful in regularly and optimally opacifying the normal superior vena cava because of the limited amount of contrast material, dilution effect of the nonopacified incoming flow from the jugular and azygos veins, and the lack of image enhancement from the CT digital scanograms.

  7. Tratamento cirúrgico da síndrome da veia cava superior causado por timoma invasivo Surgical treatment of superior vena cava syndrome caused by invasive thymoma

    OpenAIRE

    George Ronald Soncini da Rosa; Ney Takizawa; Douglas Schimidt; Mitur Sugita

    2010-01-01

    Paciente do sexo masculino, branco, 57 anos, portador de síndrome da veia cava superior havia 3 meses, devido a timoma invasivo em mediastino médio e anterior, levando a comprometimento da veia cava superior intrínseca e extrinsecamente. Após avaliação por tomografia computadorizada e angiorressonância magnética de tórax, o paciente foi submetido à ressecção radical do timoma - derivação venosa da veia subclávia esquerda para átrio direito, com tubo de PTFE (politetrafluoroetileno). Relevante...

  8. Prenatal diagnosis of isolated interrupted inferior vena cava with azygos continuation to superior vena cava

    Directory of Open Access Journals (Sweden)

    Do Thi Cam Giang

    2014-01-01

    Full Text Available Absence of inferior vena cava is an uncommon congenital abnormality. It is usually associated with other structural anomalies, typically left isomerism. We report a case of interrupted inferior vena cava with azygos continuation diagnosed as an isolated finding during routine prenatal ultrasound scan, confirmed by post-natal echocardiography. Detailed ultrasound examination of the fetal anatomy failed to demonstrate other anomalies. The neonatal course of this fetus was uneventful.

  9. A case of bilateral superior vena cava with variations in the azygos system and in the heart.

    Science.gov (United States)

    Ortale, J R; Grill, E H

    1994-08-01

    A case of bilateral superior vena cava is described in an adult cadaver of undetermined sex and age. The persistent left superior vena cava had a larger diameter approximately equal to that of the right superior vena cava ending in a wide caliber coronary sinus. Variations in the azygos system were also found. The ventricles show thin walls with trabeculae carneae forming one to five strata in the left ventricle, and from one to three strata in the right ventricle. PMID:8085654

  10. Neuroimaging findings in neonates and infants from superior vena cava obstruction after cardiac operation

    International Nuclear Information System (INIS)

    Extraventricular obstructive hydrocephalus may develop after superior vena cava obstruction, an uncommon complication after cardiac surgery.Objective. To describe the neuroimaging findings in neonates and infants with superior vena cava thrombosis after cardiac surgery for congenital heart disease.Materials and methods. Between 1993 and 2001, 333 neonates and infants in our hospital underwent cardiac surgery, of whom 13 (3.9%) subsequently acquired superior vena cava syndrome. Eleven of these 13 children (7 boys, 4 girls) were evaluated by head ultrasound and computed tomography scans.Results. One child had normal findings on head ultrasound, and 10 children had extraventricular obstructive hydrocephalus (EVOH). In 6 children, aggravation of the hydrocephalus was noted up to 11.4 months after cardiac surgery; in 3 of them, the hydrocephalus was shunted to the peritoneum. One child had thrombosis of the dural sinuses, and 1 had hemorrhagic infarction. Two children died during follow-up.Conclusion. EVOH is a common complication of superior vena cava thrombosis, and head ultrasound should be performed in all neonates and infants with superior vena cava thrombosis after cardiac surgery. Long-term follow-up is needed, as the hydrocephalus may worsen even months after surgery. (orig.)

  11. Evaluation of the superior vena cava system in children with digital subtraction angiography

    International Nuclear Information System (INIS)

    The authors report a new pediatric application of digital subtraction angiography (DSA) that is the evaluation of the superior vena cava system. 22 children have been explored. All of them had a history of previous central venous catheter placement for parenteral nutrition (13), hemodialysis (5), chemotherapy or antibiotic therapy (4). The aim of the examination was to obtain a venous mapping before a new catheter placement (14 cases) or to look for a venous thrombosis origin of superior vena cava syndrom or septicemia (8 cases). Except failure of two examinations because of absence of venous injection site, DSA showed thrombosis of one vein in 7 cases and of multiple veins in 11 cases. A pulmonary embolus was also discovered. The authors conclude that this non invasive method yields very valuable information on superior vena cava system

  12. Superior vena cava obstruction in small-cell lung cancer

    International Nuclear Information System (INIS)

    Purpose: To identify prognostic or treatment factors influencing the response of superior vena cava obstruction (SVCO), time to SVCO recurrence, and overall survival of SCLC patients with SVCO at presentation; and to assess the role of retreatment in patients with SVCO at recurrent or persistent disease. Methods and Materials: Between January 1983 and November 1993, 76 consecutive patients who had small-cell lung cancer (SCLC) with SVCO were treated in our institution. Analysis was done according to the disease status at diagnosis of SVCO. The first analysis concerned a group of 50 patients who had SVCO at initial presentation. The second analysis concerned a group who had SVCO as a manifestation of persistent or recurrent disease. Results: In the first analysis, 93% had significant improvement in symptoms of SVCO after chemotherapy and 94% after mediastinal radiation. Response is almost universal despite a wide range of radiation fractionation and total dose used. Seventy percent remained SVCO-free before death. Thirty percent developed recurrence of SVCO symptoms 1-16 months (median 8) after the start of initial treatment. Those who received combined chemotherapy and radiation had a longer time to SVCO recurrence (p = 0.018) compared to those who received chemotherapy alone. This effect is mainly seen in limited-stage patients. The presence of SVCO recurrence tends to have an adverse effect on the overall survival (p = 0.077) irrespective of the time when the recurrences occurred (p = 0.296). The median survival of this whole group of 50 patients in the first analysis was 9.5 months, and the 2-year survival was 10%. Stage was strongly predictive of survival (p < 0.001). Sixteen percent (3 of 19) of the patients with limited-stage diseases were long-term survivors (two patients survived 35 months and one survived 70 months). The early mortality from SVCO was 2%. In the second analysis, 85% had previously been treated with chemotherapy alone. The response rate of

  13. Endovascular stenting for the management of port-a-cath associated superior vena cava syndrome.

    Science.gov (United States)

    Kostopoulou, Vasiliki; Tsiatas, Marinos L; Kelekis, Dimitrios A; Dimopoulos, Meletios-Athanasios; Papadimitriou, Christos A

    2009-03-01

    Port-a-cath systems are often essential for the administration of long-term chemotherapy in the treatment of malignancies because they improve venous access, but they are associated with complications, mainly thrombosis of central veins. In the present report, we describe a case of right subclavian and superior vena cava port-a-cath-related thrombosis causing superior vena cava syndrome (SVCS) in a patient affected by Hodgkin's disease. The patient underwent percutaneous revascularization with stent positioning, experiencing immediate relief of symptoms. Endovascular procedures for the treatment of nonmalignant SVCS seem to represent a challenging therapeutic option. PMID:18322718

  14. Surgical Management of Undiagnosed Laceration of Superior Vena Cava Caused by Blunt Trauma.

    Science.gov (United States)

    Bouabdallaoui, Nadia; Debbagh, Hassan; Schoell, Thibaut; Lebreton, Guillaume

    2016-05-01

    Intrapericardial rupture of the superior vena cava resulting from blunt thoracic trauma is a rare and life-threatening condition that has to be ruled out in the presence of signs of cardiac tamponade and a history of blunt thoracic trauma. We report the case of undiagnosed superior vena cava laceration caused by a high-speed road traffic accident in a 25 year-old patient revealed by cardiac tamponade. We highlight the need of urgent surgical exploration in all patients whose condition is unstable in the setting of blunt thoracic trauma regardless of imaging conclusions. PMID:27106431

  15. Surgical Management of Undiagnosed Laceration of Superior Vena Cava Caused by Blunt Trauma

    OpenAIRE

    Bouabdallaoui, Nadia; Debbagh, Hassan; Schoell, Thibaut; Lebreton, Guillaume

    2016-01-01

    International audience Intrapericardial rupture of the superior vena cava resulting from blunt thoracic trauma is a rare and life-threatening condition that has to be ruled out in the presence of signs of cardiac tamponade and a history of blunt thoracic trauma. We report the case of undiagnosed superior vena cava laceration caused by a high-speed road traffic accident in a 25 year-old patient revealed by cardiac tamponade. We highlight the need of urgent surgical exploration in all patien...

  16. White matter change on CT associated with superior vena cava syndrome: a case report

    International Nuclear Information System (INIS)

    An 11-year-old Japanese girl with nephrotic syndrome developed superior vena cava syndrome associated with hypercoagulability and an indwelling catheter. Cranial CT revealed diffuse low-density lesions in paraventricular white matter. Thrombectomy brought prompt relief of symptoms and correction of CT abnormalities. (orig.)

  17. Cardiac Metastasis from Invasive Thymoma Via the Superior Vena Cava: Cardiac MRI Findings

    International Nuclear Information System (INIS)

    Cardiac tumors are rare, and metastatic deposits are more common than primary cardiac tumors. We present cardiac magnetic resonance imaging (MRI) findings of a 50-year-old woman with invasive thymoma. Cardiac MRI revealed a heterogeneous, lobulated anterior mediastinal mass invading the superior vena cava and extending to the right atrium. In cine images there was no invasion to the right atrial wall.

  18. Thrombosis caused by polyurethane double-lumen subclavian superior vena cava catheter and hemodialysis

    DEFF Research Database (Denmark)

    Wanscher, Maria Rørbæk; Frifelt, J J; Smith-Sivertsen, C;

    1988-01-01

    During an 18-month period, 82 consecutive patients (37 women and 45 men), with a mean age of 50 yr (range 15 to 74), underwent hemodialysis with 91 polyurethane double-lumen subclavian superior vena cava catheters inserted via the right subclavian vein. Upon catheter removal, venograms were...

  19. Superior Vena Cava Syndrome: A Presenting Feature of Mediastinal Germ Cell Tumor

    Directory of Open Access Journals (Sweden)

    Mahua Roy

    2010-04-01

    Full Text Available Superior vena cava syndrome (SVCS is rare in children. Non-Hodgkin’s Lymphoma (NHL is the most common cause of SVCS in children. This report an adolescent male who presented with SVCS due to mixed germ cell tumor (GCT of the anterior mediastinum with predominant yolk cell component. Such etiology of SVCS is rarely reported.

  20. White matter change on CT associated with superior vena cava syndrome: a case report

    Energy Technology Data Exchange (ETDEWEB)

    Fukuda, M. (Department of Nephrology, Metropolitan Kiyose Children' s Hospital, Tokyo (Japan)); Nagai, T. (Department of Neurology, Metropolitan Kiyose Children' s Hospital, Tokyo (Japan)); Kamiyama, Y. (Department of Nephrology, Metropolitan Kiyose Children' s Hospital, Tokyo (Japan)); Kawamura, K. (Department of Nephrology, Metropolitan Kiyose Children' s Hospital, Tokyo (Japan)); Kawahara, K. (Department of Nephrology, Metropolitan Kiyose Children' s Hospital, Tokyo (Japan)); Honda, M. (Department of Nephrology, Metropolitan Kiyose Children' s Hospital, Tokyo (Japan))

    1993-03-01

    An 11-year-old Japanese girl with nephrotic syndrome developed superior vena cava syndrome associated with hypercoagulability and an indwelling catheter. Cranial CT revealed diffuse low-density lesions in paraventricular white matter. Thrombectomy brought prompt relief of symptoms and correction of CT abnormalities. (orig.)

  1. Superior Vena Cava Syndrome: A Presenting Feature of Mediastinal Germ Cell Tumor

    OpenAIRE

    Mahua Roy; Rajat Bandyopadhyay; Narayan Pandit; Soumita Sengupta

    2010-01-01

    Superior vena cava syndrome (SVCS) is rare in children. Non-Hodgkin’s Lymphoma (NHL) is the most common cause of SVCS in children. This report an adolescent male who presented with SVCS due to mixed germ cell tumor (GCT) of the anterior mediastinum with predominant yolk cell component. Such etiology of SVCS is rarely reported.

  2. The clinical application of the implantation of retrievable filters in superior vena cava

    International Nuclear Information System (INIS)

    Objective: To investigate the safety of the placement of Tulip retrievable filter in superior vena cava and to discuss the prevention of pulmonary embolism (PE). Methods: Implantation of Tulip retrievable filter in superior vena cava was performed in ten patients (6 males and 4 females, aged 42-60 years) with acute or subacute deep venous thrombosis in upper extremity or cephalo-cervical region. After the placement of filter, the local via-catheter thrombolysis was conducted. The clinical results, such as the improvement of venous obstructed symptoms at upper extremity or cephalo-cervical region, were recorded. The filter's shape and location were checked. The possible occurrence of pulmonary embolism was observed. Results: The filter was successfully implanted in supper vena cava in all patients, and the deep venous thrombosis at upper extremity and cephalo-cervical region responded well to the local via-catheter thrombolysis. The filters showed no displacement or tilting. The swelling at upper extremity and cephalo-cervical region was markedly faded away. No symptomatic pulmonary embolism occurred. the filter was successfully retrieved via the femoral vein in four patients. Conclusion: Tulip filter can be safety implanted in superior vena cava and can be smoothly retrieved. The occurrence of pulmonary embolism can be effectively prevented if corresponding local via-catheter thrombolysis is carried out. (authors)

  3. Absent right superior caval vein (vena cava) with normal atrial arrangement.

    OpenAIRE

    Choi, J. Y.; Anderson, R H; Macartney, F J

    1987-01-01

    Eight cases of absent right superior caval vein (vena cava) with normal atrial arrangement from the Great Ormond Street database were reviewed. In each case the right subclavian vein and jugular vein drained into a persistent left superior caval vein through a bridging vein. In six cases the left superior caval vein drained into the right atrium by way of the coronary sinus, and in two cases it drained into the left atrium directly because of the complete unroofing of the coronary sinus. The ...

  4. Persistent Left Superior Vena Cava: A Rare Case with Clinical Significance

    Science.gov (United States)

    Kumar, Raj; Yadav, Sankalp; Verma, Deepak

    2016-01-01

    Persistent Left Superior Vena Cava (PLSVC) is a rare congenital vascular anomaly (incidence of 0.3-0.5% of the general population) which being mostly asymptomatic in its presentation, is usually detected incidentally. There are many practical clinical implications associated with it including arrhythmias. We report a rare case of PLSVC with absent Right Superior Vena Cava (RSVC) (isolated PLSVC), in a 55-year-old lady who had complete heart block followed by sepsis and was diagnosed to have this condition during the permanent cardiac pacemaker implantation and central venous catheter insertion showing an abnormal path of the catheter/pacing leads. The authors also give an insight into its clinical relevance. PMID:27437282

  5. Superior vena cava syndrome from an invasive thymoma with transcaval invasion to the right atrium.

    Science.gov (United States)

    Afzal, Ashwad; Wong, Ivan; Korniyenko, Aleksandr; Ivanov, Alex; Worku, Berhane; Gulkarov, Iosif

    2016-01-01

    Invasive thymoma with transcaval extension to the right atrium is a rare cause of superior vena cava syndrome. We present a case on a 74-year-old female presenting with dyspnea on exertion, and facial and upper extremity swelling. Physical examination revealed mild facial swelling, non-pitting edema involving the upper extremities and distention of superficial veins of the anterior chest wall and jugular veins. An echocardiogram showed moderate right atrial dilation with a mobile mass in the atrial cavity prolapsing through the tricuspid valve. Cardiac magnetic resonance imaging revealed a 9.9 × 4.3 cm heterogeneous mass in the anterior mediastinum compressing the superior vena cava and endovenously extending into the right atrium. Tissue biopsy of the mediastinal mass revealed a type B1 thymoma, further staged as a Masaoka IVa invasive thymoma that underwent successfulen blocresection followed by removal of intracaval and right atrial mass. PMID:27099229

  6. Totally endoscopic robotic resection of left atrial myxoma with persistent left superior vena cava.

    Science.gov (United States)

    Tarui, Tatsuya; Ishikawa, Norihiko; Ohtake, Hiroshi; Watanabe, Go

    2016-07-01

    A 68-year old man with a cardiac tumour was admitted for robotic tumour resection using the da Vinci S Surgical System. While undergoing preoperative examination, he was found to have a persistent left superior vena cava. After general anaesthesia and single-lung ventilation, cardiopulmonary bypass was established, with venous drainage through bilateral internal jugular and right femoral veins and arterial return through the right femoral artery. Robotic tumour resection was performed by four ports in the right chest. There were no difficulties during the operation, and successful tumour resection was achieved with satisfactory margins. He was discharged without complications. Persistent left superior vena cava is very rare, but if diagnosed preoperatively and an appropriate operative plan is made, robotic cardiac surgery can be performed safely. With robotic surgery, cardiac tumour resection can be feasibly performed, with cosmetic benefits. PMID:26989070

  7. Treatment of pacemaker-induced superior vena cava syndrome by balloon angioplasty and stenting.

    LENUS (Irish Health Repository)

    Klop, B

    2011-01-01

    Superior vena cava (SVC) syndrome is a rare but serious complication after pacemaker implantation. This report describes three cases of SVC syndrome treated with venoplasty and venous stenting, with an average follow-up of 30.7 (±3.1) months. These cases illustrate that the definitive diagnosis, and the extent and location of venous obstruction, can only be determined by venography.

  8. Bilateral adrenal cystic neuroblastoma with superior vena cava syndrome and massive intracystic haemorrhage

    International Nuclear Information System (INIS)

    Bilateral cystic adrenal tumours are a rare presentation of neuroblastoma. Intratumoural haemorrhage is a frequent finding in neuroblastoma, but is rarely symptomatic. We present an 11-month-old girl with predominantly cystic bilateral neuroblastomas and distant lymph-node metastasis. Massive intracystic haemorrhage and superior vena cava (SVC) syndrome were ominous prognostic factors, leading to death. Large tumours with intracystic haemorrhage might require a conservative approach. (orig.)

  9. Pseudoaneurisma de aorta como causa de síndrome da veia cava superior: relato de caso Aortic pseudoaneurysm as cause of superior vena cava syndrome: a case report

    Directory of Open Access Journals (Sweden)

    Katsuro Harada Júnior

    2012-09-01

    Full Text Available A síndrome da veia cava superior representa o conjunto de sinais e sintomas decorrentes da sua obstrução. A síndrome tem como principais etiologias tumores malignos, como o carcinoma broncogênico, o linfoma e a metástase mediastinal. O câncer de pulmão é responsável por 80% dos casos, os linfomas mediastinais por 15%, e 5% correspondem às demais causas. Este relato de caso objetiva apresentar um caso incomum dessa síndrome, ocorrido em um paciente do sexo masculino após ferimento penetrante no tórax, resultando em pseudoaneurisma de arco aórtico e a síndrome da veia cava superior.The superior vena cava syndrome represents the set of signs and symptoms resulting from obstruction of superior vena cava. The syndrome has as main causes malignant tumors such as bronchogenic carcinoma, lymphoma and mediastinal metastases. Lung cancer accounts for 80% of cases, mediastinal lymphomas by 15% and 5% correspond to other causes. This case report aims to present an unusual case of this syndrome, which occurred in a male patient after penetrating wound in the chest, which developed a pseudoaneurysm of the aortic arch and superior vena cava syndrome.

  10. [Duplication of the superior vena cava and other malformations discovered at insertion of a port-a-cath].

    Science.gov (United States)

    Hammerer, V; Jeung, M; Mennecier, B; Demian, M; Pauli, G; Quoix, E

    2005-09-01

    We report a clinical case of a persistent left superior vena cava discovered in a 50-year-old female patient when a port-a-cath was inserted. This already seldom malformation was associated with an arteria lusoria and polysplenia with left inferior vena cava with hemiazygos continuation, right-sided stomach, short pancreas, preduodenal portal vein and intestinal malrotation, but without any cardiac abnormalities. PMID:16208194

  11. Digital subtraction phlebography of the arm veins and vena cava superior

    International Nuclear Information System (INIS)

    We report on the results of 40 digital subtraction phlebograms of the great veins of the upper extremities and the mediastinum in 32 patients. In all cases diagnostic satisfactory examinations were achieved that demonstrated the anatomy of the veins in question. The method can be either used for the primary diagnosis or for controls during lysis of thrombotic lesions. The v. cava superior could be opacified even after ipsilateral injection of diluted contrast media in one-sided thrombotic occlusions of these veins. (orig.)

  12. Primary mediastinal melanoma presenting as superior vena cava syndrome: A case study

    Directory of Open Access Journals (Sweden)

    Ann C Gaffey

    2016-03-01

    Full Text Available The rates of melanoma have increased over the past 30 years. Malignant melanoma most commonly occurs in the skin with secondary involvement of other organs. Here, we present an extremely rare case of malignant melanoma of the mediastinum with presentation of superior vena cava syndrome without clinical evidence of extrathoracic disease. The incidence of this clinical presentation is uncommon, resulting in only a handful of case reports in the literature. [Arch Clin Exp Surg 2016; 5(1.000: 56-58

  13. Azygos Tip Placement for Hemodialysis Catheters in Patients with Superior Vena Cava Occlusion

    International Nuclear Information System (INIS)

    Chronic central venous access is necessary for numerous life-saving therapies. Repeated access is complicated by thrombosis and occlusion of the major veins, such as the superior vena cava (SVC), which then require novel vascular approaches if therapy is to be continued. We present two cases of catheterization of the azygos system in the presence of an SVC obstruction. We conclude that the azygos vein may be used for long-term vascular access when other conduits are unavailable and that imaging studies such as magnetic resonance venography, contrast-enhanced computed tomography or conventional venography can be employed prior to the procedure to aid with planning and prevent unforeseen complications

  14. Treatment of Superior Vena Cava (SVC) Syndrome and Inferior Vena Cava (IVC) Thrombosis in a Patient with Colorectal Cancer: Combination of SVC Stenting and IVC Filter Placement to Palliate Symptoms and Pave the Way for Port Implantation

    International Nuclear Information System (INIS)

    Thrombosis of the inferior vena cava is a life-threatening complication in cancer patients leading to pulmonary embolism. These patients can also be affected by superior vena cava syndrome causing dyspnea followed by trunk or extremity swelling. We report the case of a 61-year-old female suffering from an extended colorectal tumor who became affected by both of the mentioned complications. Due to thrombus formation within the right vena jugularis interna, thrombosis of the inferior vena cava, and superior vena cava syndrome, a combined interventional procedure via a left jugular access with stenting of the superior vena cava and filter placement into the inferior vena cava was performed As a consequence, relief of the patient's symptoms, prevention of pulmonary embolism, and paving of the way for further venous chemotherapy were achieved.

  15. Endovascular Treatment of Malignant Superior Vena Cava Syndrome: Results and Predictive Factors of Clinical Efficacy

    Energy Technology Data Exchange (ETDEWEB)

    Fagedet, Dorothee, E-mail: DFagedet@chu-grenoble.fr [CHU de Grenoble, Clinique universitaire de medecine interne, Pole Pluridisciplinaire de Medecine (France); Thony, Frederic, E-mail: FThony@chu-grenoble.fr [CHU de Grenoble, Clinique universitaire de radiologie et imagerie medicale, Pole d' Imagerie (France); Timsit, Jean-Francois, E-mail: JFTimsit@chu-grenoble.fr [CHU de Grenoble, Clinique universitaire de reanimation, Pole Medecine Aiguee Communautaire (France); Rodiere, Mathieu, E-mail: MRodiere@chu-grenoble.fr [CHU de Grenoble, Clinique universitaire de radiologie et imagerie medicale, Pole d' Imagerie (France); Monnin-Bares, Valerie, E-mail: v-monnin@chu-montpellier.fr [CHRU Arnaud de Villeneuve, Imagerie Medicale Thoracique Cardiovasculaire (France); Ferretti, Gilbert R., E-mail: GFerretti@chu-grenoble.fr [CHU de Grenoble, Clinique universitaire de radiologie et imagerie medicale, Pole d' Imagerie (France); Vesin, Aurelien; Moro-Sibilot, Denis, E-mail: DMoro.pneumo@chu-grenoble.fr [University Grenoble 1 e Albert Bonniot Institute, Inserm U823 (France)

    2013-02-15

    To demonstrate the effectiveness of endovascular treatment (EVT) with self-expandable bare stents for malignant superior vena cava syndrome (SVCS) and to analyze predictive factors of EVT efficacy. Retrospective review of the 164 patients with malignant SVCS treated with EVT in our hospital from August 1992 to December 2007 and followed until February 2009. Endovascular treatment includes angioplasty before and after stent placement. We used self-expandable bare stents. We studied results of this treatment and looked for predictive factors of clinical efficacy, recurrence, and complications by statistical analysis. Endovascular treatment was clinically successful in 95% of cases, with an acceptable rate of early mortality (2.4%). Thrombosis of the superior vena cava was the only independent factor for EVT failure. The use of stents over 16 mm in diameter was a predictive factor for complications (P = 0.008). Twenty-one complications (12.8%) occurred during the follow-up period. Relapse occurred in 36 patients (21.9%), with effective restenting in 75% of cases. Recurrence of SVCS was significantly increased in cases of occlusion (P = 0.01), initial associated thrombosis (P = 0.006), or use of steel stents (P = 0.004). Long-term anticoagulant therapy did not influence the risk of recurrence or complications. In malignancy, EVT with self-expandable bare stents is an effective SVCS therapy. These results prompt us to propose treatment with stents earlier in the clinical course of patients with SVCS and to avoid dilatation greater than 16 mm.

  16. Endovascular stenting in superior vena cava syndrome: utility of a through-and-through guidewire technique

    Energy Technology Data Exchange (ETDEWEB)

    Clark, T.W.I. [Dalhousie Univ., Queen Elizabeth II Health Sciences Centre, Section of Interventional Radiology, Dept. of Diagnostic Imaging, Halifax, NS (Canada)

    2000-08-01

    Objective: To describe an ancillary technique when a conventional femoral approach to superior vena cava (SVC) stent placement is not feasible because of buckling of balloon catheters or stent-deployment systems during device advancement. Patients and methods: Three patients in whom device advancement across the SVC lesion from a femoral or axillary approach was unsuccessful were managed by accessing the right jugular vein; SVC lesions were crossed from an antegrade direction, and the jugular guidewire was secured at the femoral access site to create a through-and-through guidewire. Results: Countertraction on the through-and-through guidewire during stent placement and dilation permitted unhindered advancement of stent delivery systems and catheters across the SVC. Technical and clinical success was achieved in each patient with relief of SVC syndrome within 24-72 hours. Survival ranged from 26 to 137 days. Conclusion: A through-and-through guidewire technique is useful when stenting a highly stenotic or thrombosed SVC in patients with superior vena cava syndrome. (author)

  17. Accidental implantation of hemodialysis catheter in persistent left superior vena cava

    International Nuclear Information System (INIS)

    The implantation of central catheters for hemodialysis in patients with renal failure is a common practice. The venous access to the internal jugular vein through percutaneous puncture is the most recommended procedure because it produces the lowest percentage of stenosis. The right internal jugular vein puncture is the most appropriate one because it goes directly in vertical direction into the right atrium, but in some cases its canalization is impossible making it necessary to puncture the left internal jugular vein, the one next to the innominated vein that ends in the superior cava, with the result that its path is much curved. 3 cases in which the left intern jugular catheter that was inserted to perform hemodialysis accidentally canalized the anomaly in the persistent left superior vena cava were presented. In all the cases and before proceeding with the hemodialysis it was demonstrated by the gases of the punctuated vessel, echocardiogram or contrast medium that the catheter was positioned in the venous system that drains in the right atrium.

  18. Endovascular treatment of an iatrogenic superior vena cava perforation caused by the placement of a hemodialysis catheter: a case report

    Energy Technology Data Exchange (ETDEWEB)

    Kim, See Hyung; Kim, Young Hwan; Keum, Dong Yoon [Dongsan Medical Center, Keimyung University College of Medicine, Daegu (Korea, Republic of)

    2008-01-15

    The perforation of superior vena cava during the placement of a tunneled hemodialysis catheter, via the subclavian vein, is a rare complication, and is manifested by hemothorax or hemopericardium. The treatment of this complication requires an early diagnosis and open thoracic surgery. Herein, we report a patient with hemothorax due to the perforation of the superior vena cava during the placement of a tunneled hemodialysis catheter via the right subclavian vein which was successfully treated by embolization by way of a coil and histoacryl.

  19. Right-sided superior vena cava draining into the left atrium: a rare anomaly of systemic venous return

    Energy Technology Data Exchange (ETDEWEB)

    Aminololama-Shakeri, Shadi; Wootton-Gorges, Sandra L.; Reyes, Melissa; Moore, Elizabeth H. [University of California Davis, Medical Center and Children' s Hospital, Department of Radiology, Sacramento, CA (United States); Pretzlaff, Robert K. [University of California Davis, Medical Center and Children' s Hospital, Department of Pediatrics, Sacramento, CA (United States)

    2007-03-15

    The most commonly encountered systemic thoracic venous anomaly is a persistent left superior vena cava that drains into the right atrium via the coronary sinus. A much rarer systemic venous anomaly is that of isolated anomalous drainage of a normally positioned right superior vena cava (RSVC) into the left atrium (LA). This has been reported in approximately 20 patients with the diagnosis usually being made by cardiac catheterization. We report the case of a toddler with asymptomatic hypoxemia resulting from anomalous drainage of a normal RSVC into his LA. This was diagnosed non-invasively by contrast-enhanced chest CT. (orig.)

  20. Successful Venous Angioplasty of Superior Vena Cava Syndrome after Heart Transplantation

    Directory of Open Access Journals (Sweden)

    Thomas Strecker

    2014-01-01

    Full Text Available Introduction. For patients with terminal heart failure, heart transplantation (HTX has become an established therapy. Before transplantation there are many repeated measurements with a pulmonary artery catheter (PAC via the superior vena cava (SVC necessary. After transplantation, endomyocardial biopsy (EMB is recommended for routine surveillance of heart transplant rejection again through the SVC. Case Presentation. In this report, we present a HTX patient who developed a SVC syndrome as a possible complication of all these procedures via the SVC. This 35-year-old Caucasian male could be successfully treated by balloon dilatation/angioplasty. Conclusion. The SVC syndrome can lead to pressure increase in the venous system such as edema in the head and the upper part of the body and further serious complications like cerebral bleeding and ischemia, or respiratory problems. Balloon angioplasty and stent implantation are valid methods to treat stenoses of the SVC successfully.

  1. Surgical repair for giant ascending aortic aneurysm to superior vena cava fistula with positive syphilitic test.

    Science.gov (United States)

    Sekine, Yuji; Yamamoto, Shin; Fujikawa, Takuya; Oshima, Susumu; Ono, Makoto; Sasaguri, Shiro

    2015-10-01

    Syphilitic aortitis is usually associated with thoracic aortic saccular aneurysm, aortic regurgitation and coronary ostial stenosis. However, syphilitic aneurysms have rarely been reported today. Here, we report a patient with ascending aortic aneurysm with aorta-superior vena cava (SVC) fistula with positive syphilitic test. A 52-year-old man was admitted to our institution with a giant ascending aortic aneurysm complicated with SVC syndrome. Computed tomography revealed a giant ascending aneurysm 79 mm in diameter. The result of serodiagnostic tests for syphilis had not been judged yet preoperatively. Total arch replacement concomitant with elephant trunk was performed. Intraoperatively, we detected the ascending aorta to SVC fistula. Postoperatively, we suspected the syphilitic aneurysm strongly, because preoperative serodiagnostic test was concluded to be positive. However, histological examination did not show typical syphilitic features. The patient remains asymptomatic 1 year later. Although extremely rarely today, syphilitic aneurysm should be still considered in the differential diagnosis of ascending aortic aneurysm. PMID:24000069

  2. Dramatic response of follicular thyroid carcinoma with superior vena cava syndrome and tracheal obstruction to external-beam radiotherapy

    Energy Technology Data Exchange (ETDEWEB)

    Wilford, M.R.; Chertow, B.S.; Lepanto, P.B.; Leidy, J.W. Jr. (Section of Endocrinology, Marshall University School of Medicine, Huntington, West Virginia (USA))

    1991-06-01

    We report a patient with follicular thyroid carcinoma progressing to superior vena cava (SVC) syndrome and tracheal obstruction despite multiple doses of radioactive iodine therapy but subsequently responding dramatically to external-beam radiotherapy (RT). Although RT is not considered to be the treatment of choice for follicular carcinoma, RT in our patient produced unequivocal improvement of SVC syndrome and tracheal obstruction.

  3. Dialysis catheter-related superior vena cava syndrome with patent vena cava: Long term efficacy of unilateral viatorr stent-graft avoiding catheter manipulation

    International Nuclear Information System (INIS)

    Central venous catheters are the most frequent causes of benign central vein stenosis. We report the case of a 79-year-old woman on hemodialysis through a twin catheter in the right internal jugular vein, presenting with superior vena cava (SVC) syndrome with patent SVC. The clinically driven endovascular therapy was conducted to treat the venous syndrome with a unilateral left brachiocephalic stent-graft without manipulation of the well-functioning catheter. The follow-up was uneventful until death 94 months later.

  4. Dialysis catheter-related superior vena cava syndrome with patent vena cava: Long term efficacy of unilateral viatorr stent-graft avoiding catheter manipulation

    Energy Technology Data Exchange (ETDEWEB)

    Quaretti, Pietro; Galli, Franco; Maramarco, Lorenzo Paplo; Corti, Riccardo; Leati, Giovanni; Fiorina, Ilaria; Maestri, Marcello [IRCCS Policlinico San Matteo Foundation, Pavia (Italy)

    2014-06-15

    Central venous catheters are the most frequent causes of benign central vein stenosis. We report the case of a 79-year-old woman on hemodialysis through a twin catheter in the right internal jugular vein, presenting with superior vena cava (SVC) syndrome with patent SVC. The clinically driven endovascular therapy was conducted to treat the venous syndrome with a unilateral left brachiocephalic stent-graft without manipulation of the well-functioning catheter. The follow-up was uneventful until death 94 months later.

  5. Radiological diagnosis of total anomalous pulmonary venous connection with right superior vena cava

    International Nuclear Information System (INIS)

    Objective: To evaluate radiographic diagnosis in total anomalous pulmonary venous connection with right superior vena cava (RSVC-TAPVC) and analyze the variant of its pulmonary venous connection and the influence on surgical operation. Methods: In 11 patients who were diagnosed by angiocardiography and confirmed by surgical operation, all chest radiographs were studied retrospectively and compared with their angiocardiography and surgical results. The variant of pulmonary venous connection was analyzed and the influence on surgical operation was also discussed. Results: 6 patients showed 'right hemi-snowman sign' in posteroanterior view and 3 showed a pre-tracheal density on the lateral view or other sign caused by drainage vein. 6 of 9 angio-cardiographs showed pulmonary or drainage venous stenosis. There were 2, 4 and 3 cases respectively whose right pulmonary veins connected with common pulmonary or drainage veins in one, two, and three branches. 2 of 3 died cases were caused by mistaken ligation of right superior pulmonary vein during the operation. Conclusion: About 82% cases of the RSVC-TAPVC can be diagnosed by chest radiograph because of the 'right hemi-snowmen sign' and other supplementary signs. In about 78% cases, the right pulmonary veins join right drainage (or connecting) vein in two or more branches at separate levels and this variant has surgical implications

  6. Long-term success of endovascular treatment of benign superior vena cava occlusion with chylothorax and chylopericardium

    Energy Technology Data Exchange (ETDEWEB)

    Veroux, Pierfrancesco; Veroux, Massimiliano; Bonanno, Maria Giovanna; Tumminelli, Maria Giuseppina [Department of Surgery and Transplantation, University Hospital, Via S. Sofia, 78, 95123 Catania (Italy); Baggio, Elda [Department of Surgery and Gastroenterological Sciences, University Hospital of Verona (Italy); Petrillo, Giuseppe [Department of Radiology, University Hospital, Via S. Sofia, 78, 95123 Catania (Italy)

    2002-07-01

    The most likely etiology of benign obstruction of the superior vena cava (SVC) include fibrosing mediastinitis and iatrogenic etiologies such as sclerosis and obstruction caused by pacemakers and central venous catheter. Percutaneous stenting of SVC has been used with success both in malignant and benign superior vena cava syndrome; however, long-term follow-up of endovascular procedures is not well known. We present a case of a patient with complete occlusion of SVC of benign etiology, presenting dramatically with bilateral chylothorax and chylopericardium with cardiac tamponade, who underwent successful vena caval revascularization with thrombolytic therapy and placement of self-expanding metallic stent. The 42-month follow-up could encourage endovascular procedures even in SVC syndrome of benign etiology. (orig.)

  7. Downhill oesophageal varices resulting from superior vena cava graft occlusion after resection of a thymoma†

    Science.gov (United States)

    Inoue, Yoshimasa; Sakai, Shoji; Aoki, Teruhiro

    2013-01-01

    Downhill oesophageal varices (DEV) may occur as a rare complication of superior vena cava (SVC) obstruction. DEV are usually associated with SVC obstruction caused by systemic vasculitis or mediastinal tumours. In this report, we describe a very rare case of DEV resulting from SVC graft occlusion after resection of a thymoma. A 66-year old man with an invasive thymoma was treated by radical resection and bypass grafting from the right brachiocephalic vein to the right atrium. Occlusion of the SVC graft was diagnosed postoperatively; however, the patient could be managed conservatively. Although there had been no significant findings in the oesophagus in previous endoscopic examinations, grade F2 varices were found in the proximal oesophagus in the 19th postoperative month, and DEV caused by SVC graft occlusion was diagnosed. Until now, 2 years since the diagnosis, no apparent symptoms or deterioration of the DEV have been observed. The possible development of DEV should be borne in mind during the follow-up of patients with postoperative SVC graft occlusion. PMID:23686892

  8. Mesothelioma with superior vena cava obstruction in young female following short latency of asbestos exposure

    Directory of Open Access Journals (Sweden)

    Anupam Patra

    2015-01-01

    Full Text Available An 18 years female was admitted with right-sided chest pain, dry cough, and low-grade fever and weight loss for last 1 month. On examination, patient had features of superior vena cava (SVC syndrome with right-sided pleural effusion. Chest X-ray showed mediastinal widening with nonhomogenous opacity mainly in the periphery of right upper and mid zone with right-sided pleural effusion. Ultrasonography thorax confirmed mild pleural effusion. Pleural fluid analysis showed lymphocytic, exudative, low adenosine deaminase with negative for Pap smear. Contrast-enhanced computed tomography (CT thorax revealed large extensive nodular soft tissue lesion along right mediastinum as well as costal pleura, with enlarged pretracheal lymphadenopathy and SVC obstruction. CT guided Tru-cut biopsy report came as malignant epithelial tumor with polygonal shape, abundant eosinophilic cytoplasm and nuclei with prominent nucleoli suggestive of mesothelioma of epithelioid type. The tumor cell expressed calretinin, WT-1, and immunonegative for thyroid transcription factor-1.

  9. Persistent left superior vena cava mistaken for nodal metastasis: a case report

    Directory of Open Access Journals (Sweden)

    Papandrinopoulou Dimitra

    2010-06-01

    Full Text Available Abstract Introduction Evaluation of the mediastinum is crucial for patients with lung cancer. Mediastinal lymph node metastases play a dramatic role in the process of staging. Physicians should be aware of the potential pitfalls regarding mediastinal evaluation. This case report provides an example. Case presentation We report the case of a 57-year-old Caucasian man who presented with a four-month history of non-productive cough. He was diagnosed with non-small cell lung cancer. Initially, it was thought to be inoperable due to the presence of a para-aortic lymph node. A more careful examination of the mediastinum revealed that the "lymph node" was in fact a persistent left superior vena cava. Conclusions This study highlights the difficulties in mediastinal staging, especially when intravenous contrast is not used. The recognition of this vascular malformation dramatically changed the therapeutic decisions, giving our patient the opportunity of surgical resection. To the best of our knowledge, such correlation has not been described in English literature.

  10. Catheterobronchial fistula due to vena cava superior thrombosis as a late complication of ventriculoatrial shunt.

    Science.gov (United States)

    Parízek, J; Nytra, T; Zemánková, M; Eliás, P; Sercl, M; Nĕmecková, J; Jakubec, J

    1994-09-01

    A case of a catheterobronchial fistula as a rare late complication of a ventriculoatrial shunt is reported. The ventriculoatrial shunt was implanted in a 4-month-old boy suffering from extreme postinfectious hydrocephalus. During the following years, twelfth nerve palsy on the right, vertebralgias, and salty taste sensations in the mouth associated with intermittent coughing and swelling of the neck and supraclavicular region on the right side developed. Valvography established a diagnosis of fistula 12 years after the implantation of a shunt. Ultrasonography of the neck and mediastinum and contrast-enhanced dynamic computed tomographic scanning demonstrated a catheterobronchial fistula to the subsegmental bronchus of the anterior segment of the right upper lung lobe, a thrombosis of the right internal jugular and both right and left brachiocephalic veins and the superior vena cava, and an extensive collateral venous system mainly draining into the azygos vein. Normalization of cerebrospinal fluid and blood flow and pressure allowed extraction of the "atrial" catheter without complications. One year after surgery the boys is in good health and without signs of shunt dependence. PMID:7842439

  11. Superior Vena Cava Syndrome due to Thrombosis: A Rare Paraneoplastic Presentation of Bronchogenic Carcinoma

    Directory of Open Access Journals (Sweden)

    Avradip Santra

    2016-07-01

    Full Text Available Superior vena cava (SVC syndrome is not an uncommon occurrence in patients with malignancy and it is often described as a medical emergency. In majority of the cases, SVC syndrome occurs due to mechanical obstruction of the SVC by extraluminal compression with primary intrathoracic malignancies. However, intraluminal obstruction due to thrombosis can also produce symptoms and signs of SVC syndrome. Clot-related SVC obstruction is mostly associated with indwelling central venous catheter and pacemaker leads, although such thrombosis can occur spontaneously in a background of a hypercoagulable state, e.g., malignancy. Here, an unusual case of sudden onset SVC syndrome has been reported, which on initial radiologic evaluation was found to have a lung nodule without any significant mediastinal mass or adenopathy compressing SVC. Subsequent investigation with Doppler ultrasonography of the neck showed thrombosis in the right internal jugular, right subclavian and right brachiocephalic vein, which was responsible for SVC syndrome. Histopathological evaluation of lung nodule confirmed presence of an adenocarcinoma. Therefore, venous thromboembolism as a paraneoplastic syndrome should be kept in mind while evaluating a case of SVC obstruction in a cancer patient. Management of the underlying disease is of prime importance in such cases and anticoagulation is the mainstay of therapy. Ability to identify paraneoplastic syndrome may have a significant effect on clinical outcome, ranging from early diagnosis to improved quality of life of the patient.

  12. Congenital Aortocaval Fistula from Right Subclavian Artery to Superior Vena Cava in an Adult with Tetralogy of Fallot

    Directory of Open Access Journals (Sweden)

    Soheila Chamanian

    2014-11-01

    Full Text Available Congenital   aortocaval   fistula in association with complex congenital heart disease has never been described before. We represent an adult with tetralogy of fallot and an undiagnosed subclavian artery to superior vena cava fistula in previous catheterisms. He underwent surgical correction, successfully. After 8 months post operation he was doing well with improved functional capacity and no cyanosis.

  13. Innominate vein-right atrial bypass for relief of superior vena cava syndrome due to pacemaker lead thrombosis.

    Science.gov (United States)

    Deo, Salil V; Burkhart, Harold M; Araoz, Philip A; Brady, Peter A

    2010-11-01

    We present a patient with superior vena cava (SVC) obstruction due to multiple intraluminal pacemaker leads. Previous attempts at balloon dilatation of the SVC and surgical angioplasty did not provide a long-term solution. A Gore-Tex (W. L. Gore & Associates, Flagstaff, AZ, USA) conduit interposed between the innominate vein and right atrial appendage has resulted in symptomatic relief at a follow-up of 6 months. PMID:21039859

  14. Electrophysiological characteristics of paroxysmal atrial fibrillation originating from superior vena cava: a clinical analysis of 30 cases

    OpenAIRE

    Shi, Xiang-min; YUAN, HONG-TAO; Guo, Hong-Yang; Guo, Jian-Ping; Shan, Zhao-Liang; Wang, Yu-tang

    2015-01-01

    To analyze characteristics of electrocardiogram (ECG), electrophysiological intracardiac mapping and radiofrequency ablation (RF) of paroxysmal atrial fibrillation (PAF) originating from superior vena cava (SVC), aiming to investigate electrophysiological characteristics of PAF with SVC origin. Clinical data of 30 subjects (18 men and 12 women, aged, 58.6 ± 15.5 years) with PAF of SVC origin were retrospectively analyzed; All patients underwent RF during 2006.9-2012.7. ECG of AF and atrial pr...

  15. Persistent left superior vena cava draining to the left atrium: A case report and review of the literature

    International Nuclear Information System (INIS)

    Persistent left superior vena cava is a rare but important congenital vascular anomaly. However, PLSVC with absent RSVC (isolated PLSVC) is a very rare venous malformation We report on a rare case of persistent left superior vena cava (PLSVC) with absent right superior vena cava (RSVC). This venous malformation was identified incidentally in a 69-year-old woman during chest multi-detector computed tomography (MDCT). On chest MDCT, the SVC was noted on the left side. A bridging vein drained the right jugular and right subclavian veins and joined the left brachiocephalic vein in order to form the PLSVC, which descended on the left side of the mediastinum and drained into the left atrium (LA). The patient had no additional cardiac anomaly. Isolated PLSVC is usually asymptomatic but it can pose difficulties for establishing central venous access, pacemaker implantation and cardiothoracic surgery. This condition is also associated with an increased incidence of congenital heart disease, arrhythmias and conduction disturbances. A wide spectrum of clinicians should be aware of this anomaly, its variations and possible complications

  16. Radiation dose is associated with prognosis of small cell lung cancer with superior vena cava syndrome

    Science.gov (United States)

    Wang, Zhen-Bo; Ning, Fang-Ling; Wang, Xiao-Le; Cheng, Yu-Feng; Dong, Xin-Jun; Liu, Chang-Min; Chen, Shao-Shui

    2015-01-01

    Approximately 10% of small cell lung cancer (SCLC) cases develop superior vena cava syndrome (SVCS). Many SCLC patients with SVCS have relatively limited disease, requiring curative rather than palliative treatment. Besides chemotherapy, radiotherapy is important for treating SCLC with SVCS. We retrospectively evaluated the influence of radiotherapy dose on the prognosis of 57 patients with SCLC with SVCS treated with concurrent chemoradiotherapy. The mean biological equivalent radiation dose was 71.5 Gy. We administered etoposide/cisplatin as sequential and concurrent chemotherapy. All patients received at least one cycle of concurrent chemotherapy. All patients had partial or complete response; SVCS-associated symptoms were reduced in 87.7% (50/57) of patients within 3-10 days after treatment. Radiation dose did not affect 2-year local control (74.2% vs. 80.8%). Patients who received high-dose radiation had a lower 2-year overall survival rate than those who received low-dose radiation (11.6 vs. 33%; P = 0.024). The high dose group median survival was 15.0 months (95% confidence interval [CI]: 11.2-19.0) compared with 18.7 months (95% CI: 13.9-23.6) in the low dose group. Grade 3/4 neutropenia occurred in 22/26 high dose patients (84.6%) and 21/31 low dose patients (67.7%). In the high dose group, 30.8% of patients had grade 3/4 esophagitis compared with 19.4% of low dose patients. Only 29.0% of low dose patients received < 4 cycles of chemotherapy in the first 12 weeks after treatment began compared with 46.2% of high dose patients. Concurrent chemoradiotherapy is a tolerable modality for treating stage IIIA/IIIB SCLC with SVCS. Moderate-dose radiotherapy is preferable. PMID:26064339

  17. The implantation of retrievable superior vena cava filter: report of 6 cases

    International Nuclear Information System (INIS)

    Objective: To discuss the techniques and clinical value of the placement of retrievable superior vena cava (SVC) filter. Methods: Under DSA guidance, the placement of retrievable SVC filter was performed in 6 patients with jugular vein thrombosis or upper extremity deep vein thrombosis. The diagnoses were proved by colour Doppler ultrasound and venography. All patients were affected with malignancy. The venous thrombosis was caused by the insertion of PICC (n=3) or by the compression or invasion of tumor (n=3). Catheterization was carried out via the right femoral vein. After venography of SVC, the delivery system of SVC filter was inserted into SVC, and the filter was placed at the site slightly below the confluence of brachiocephalic veins. The retrieval of the filter was performed through the femoral vein route. Results: The retrievable filter was successfully placed in SVC in all cases. No dislodgement or migration of the filters occurred during the procedure. The filter was successfully retrieved via the femoral vein in two cases at 15 days and 28 days after the placement respectively as color Dopper ultrasound showed that the venous thrombus disappeared. The remaining 4 patients were unwilling to take the procedure of filter retrieval. All the patients were followed up periodically. During the follow-up course, five patients died of some causes (deterioration of the tumor, etc.) unrelated to filter placement in 2-16 months after the procedure. No serious complications such as SVC thrombosis, pulmonary embolism, migration of filter, vascular perforation, etc. occurred. Conclusion: The placement of retrievable SVC filter is technically simple, clinically feasible and safe, and the filter can be retrieved easily. This technique is very useful for preventing both the pulmonary embolism caused by jugular vein or upper extremity deep vein thrombosis and the complications related to long-term retention of the filter within SVC. (authors)

  18. Superior vena cava syndrome associated with right-to left shunt through systemic-to-pulmonary venous collaterals

    International Nuclear Information System (INIS)

    Superior vena cava (SVC) obstruction is associated with the gradual development of venous collaterals. We present a rare form of systemic-to-pulmonary subpleural collateral pathway that developed in the bridging subpleural pulmonary veins in a 54-year-old woman with complete SVC obstruction. This uncommon collateral pathway represents a rare form of acquired right-to-left shunt due to previous pleural adhesions with an increased risk of stroke due to right-to-left venous shunting, which requires lifelong anticoagulation.

  19. Focal Hepatic Hot Spot From Superior Vena Cava Occlusion Visualized on Ventilation/Perfusion Scintigraphy With Contrast-Enhanced CT Correlate.

    Science.gov (United States)

    Lawrence, Michael; Schuster, David M

    2016-05-01

    A 57-year-old woman with superior vena cava stenosis from repeated central line placements underwent ventilation/perfusion scanning after presenting with pleuritic chest pain. The ventilation/perfusion scan was not characteristic for pulmonary embolus, but perfusion images demonstrated abnormal radiotracer activity within hepatic segment 4, along with extensive collateral vessels as seen on SPECT/CT. Two months later, the patient presented with similar complaints and had a chest CT with contrast to evaluate for pulmonary embolus. This showed occlusion of the superior vena cava and arterial enhancement within segment 4 in a similar distribution to the radiotracer in the perfusion scan. PMID:26825208

  20. Scimitar syndrome of atypical, rare drainage of venous vessel to the superior vena cava. A case report

    International Nuclear Information System (INIS)

    Scimitar syndrome is a rare and complex congenital anomaly characterized by partial or complete anomalous pulmonary venous return from the right or left lung into the inferior vena cava, through drainage into the hepatic vein, right atrium or left atrium. The syndrome is commonly associated with hypoplasia of the right lung and right pulmonary artery. We present an 11-year-old female with atypical and rare type of scimitar syndrome. The girl has had cough for 2 months before admission, without fever or abnormalities on medical examination. X-ray films revealed inflammatory and atelectatic changes with mediastinal shift to the right. CT and CT angiography – hypoplasia of the right lung with no visible interlobar fissures. No areas of consolidation in the pulmonary parenchyma. Mediastinum shifted to the right. Single wide venous vessels draining the upper part of the right lung entering the superior vena cava. In our patient, clinical symptoms are mild, but a thorough physical examination could have helped diagnose the syndrome earlier

  1. Massive catheter-related thrombosis of vena cava superior protruding into the right atrium in a hemodialysis patient.

    Science.gov (United States)

    Mach, Lukas; Ondruskova, Olga; Nemec, Petr; Orban, Marek

    2015-10-01

    A 36-year-old man with chronic renal insufficiency secondary to type 1 diabetes mellitus was on hemodialysis via central venous catheter (CVC), newly placed into the right subclavian vein after his arteriovenous fistula became dysfunctional. Seven days after CVC insertion, the patient developed fever and on day 11 echocardiography showed a large nearly occluding thrombus in the superior vena cava (SVC) extending into the right atrium (RA). Emergency surgical thrombectomy was successfully performed and an 11 cm long thrombus extending from the RA cranially into the SVC occupying majority of the vein's lumen was removed. Cultures from the thrombus and CVC were negative, but polymerase chain reaction was positive for Staphylococcus aureus. This particular case was interesting for a marked discrepancy between large SVC occluding thrombosis and a relatively mild clinical presentation with fever, and it highlights the importance of correct timing of echocardiography exam which might prevent potentially fatal consequences such as pulmonary embolism. PMID:25645521

  2. Superior vena caval syndrome caused by the tumor of the left hilum in a patient with unilateral persistent left superior vena cava diagnosed with multislice spiral computed tomography-a case report

    International Nuclear Information System (INIS)

    Unilateral persistent left superior vena cava (PLSVC) is an infrequent finding with incidence of 18-20% among the individuals with PLSVC. The persistence of the left-sided superior vena cava is an effect of disturbances in development of the connection between the precardinal veins (anterior cardinal veins) and formation of the sinus venosus in early stages of embryogenesis. The paper presents a case of a 62-year-old patient with a mass lesion of the left hilum, which caused left-sided superior vena caval syndrome in the presence of unilateral SVC. Developmental mechanisms of superior vena caval syndrome are discussed. The evolution of changes related to infiltration and occlusion of PLSVC is shown on the basis of three selected MSCT examinations. (author)

  3. Covered stent placement for the treatment of malignant superior vena cava syndrome: Is unilateral covered stenting and effective?

    Energy Technology Data Exchange (ETDEWEB)

    Cho, Young Hoon; Gwon, Dong Il; Ko, Gi Young; Ko, Heung Kyu; Kim, Jin Hyoung; Shin, Ji Hoon; Yoon, Hyun Ki; Sung, Kyu Bo [Dept. of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul (Korea, Republic of)

    2014-02-15

    To evaluate the safety and efficacy of unilateral covered stent placement in patients with malignant superior vena cava (SVC) syndrome. Between October 2008 and November 2012, expanded polytetrafluoroethylene-covered stent placement for malignant SVC syndrome was performed in 40 consecutive patients (35 men and five women; mean age, 61.4 years; range, 35-81 years). All covered stents were unilaterally placed within the SVC or across the venous confluence when needed to relieve venous obstruction and prevent tumor overgrowth, regardless of patency of contralateral brachiocephalic veins. Stent placement was technically successful in all patients. There were no major complications. Of the 37 patients symptomatic prior to stent placement, 34 (92%) experienced complete symptomatic relief 1-8 days after stent placement. Of the 29 patients who underwent covered stent placement across the venous confluence, nine patients had patent contralateral brachiocephalic veins prior to stent placement. However, no sign of SVC obstruction or contralateral upper extremity venous thrombosis was observed during the follow-up period. Kaplan-Meier analysis revealed median patient survival of 163 days. Stent occlusion occurred in four (10%) of 40 patents. Cumulative stent patency rates at 1, 3, 6, and 12 months were 95%, 92%, 86%, and 86%, respectively. Unilateral covered stent placement appears to be a safe and effective method for treating malignant SVC syndrome, despite the location of SVC occlusion.

  4. The characteristics of action potential and nonselec-tive cation current of cardiomyocytes in rabbit superior vena cava

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    As a special focus in initiating and maintaining atrial fibrillation (AF), cardiomyocytes in superior vena cava (SVC) have distinctive electrophysiological characters. In this study, we found that comparing with the right atrial (RA) cardiomyoctyes, the SVC cardiomyoctyes had longer APD90 at the different basic cycle lengths; the conduction block could be observed on both RA and SVC cardiomyoctyes. A few of SVC cardiomyoctyes showed slow response action potentials with automatic activity and some others showed early afterdepolarization (EAD) spontaneously. Further more, we found that there are nonselective cation current (INs) in both SVC and RA cardiomyocytes. The peak density of INs in SVC cardiomyocytes was smaller than that in RA cardiomyocytes. Removal of extracellular divalent cation and glucose could increase INs in SVC cardiomyocytes. The agonist or the antagonist of INs may in-crease or decrease APD. To sum up, some SVC cardiomyocytes possess the ability of spontaneous activity; the difference of transmembrane action potentials between SVC and RA cardiomyocytes is partly because of the different density of INs between them; the agonist or the antagonist of INs can in-crease or decrease APD leading to the enhancement or reduction of EAD genesis in SVC cardiomyo-cytes. INs in rabbit myocytes is fairly similar to TRPC3 current in electrophysiological property, which might play an important role in the mechanisms of AF.

  5. Proton beam therapy for a patient with a giant thymic carcinoid tumor and severe superior vena cava syndrome

    Directory of Open Access Journals (Sweden)

    Kaori Sugawara

    2014-05-01

    Full Text Available Surgical resection is the first choice for treatment of a thymic carcinoid tumor and radiotherapy is often performed as adjuvant therapy. Here, we report a case of an unresectable and chemoresistant thymic carcinoid tumor that was treated successfully using standalone proton beam therapy (PBT. The patient was a 66-year-old woman in whom surgical resection of the tumor was impossible because of cardiac invasion. Therefore, chemotherapy was administered. However, the tumor grew to 15 cm in diameter and she developed severe superior vena cava (SVC syndrome. She was referred to our hospital and received PBT at a dose of 74 GyE in 37 fractions. PBT was conducted without severe early toxicities. After PBT, the tumor mildly shrunk to 13 cm in diameter and SVC syndrome almost disappeared. Subsequently, the tumor has continued to decrease in size slowly over the last 2 years and late toxicities have not been observed. Our experience with this case suggests that PBT may be effective for an unresectable thymic carcinoid tumor.

  6. The Incidental Finding of a Persistent Left Superior Vena Cava: Implications for Primary Care Providers—Case and Review

    Directory of Open Access Journals (Sweden)

    Loren Garrison Morgan

    2015-01-01

    Full Text Available Persistent left superior vena cava (PLSVC is the most common thoracic venous anomaly and is a persistent congenital remnant of the vena caval system from early cardiac development. Patients with congenital anomalous venous return are at increased risk of developing various cardiac arrhythmias, due to derangement of embryologic conductive tissue during the early development of the heart. Previously this discovery was commonly made during the placement of pacemakers or defibrillators for the treatment of the arrhythmias, when the operator encountered difficulty with proper lead deployment. However, in today’s world of various easily obtainable imaging modalities, PLSVC is being discovered more and more by primary care providers during routine testing or screening for other ailments. Given the known association between anomalous venous return and the propensity for cardiac arrhythmias, we review the embryology of PLSVC and the mechanisms by which it leads to conduction abnormalities. We also provide the practitioner with recommendations for certain baseline cardiac observations and suggestions for proper surveillance in hopes that better understanding will reduce unnecessary and potentially harmful testing, premature subspecialty referral, and unneeded patient anxiety.

  7. Analysis of Doppler flow spectra of the superior vena cava in a canine model of acute thromboembolic pulmonary hypertension.

    Science.gov (United States)

    Sun, Dan Dan; Chen, Hong Mao; Duan, Yun You; Yuan, Li Jun; Shang, Fu Jun; Liang, Ning Nan; Cao, Wei

    2011-10-01

    We aimed to establish a canine model of acute thromboembolic pulmonary hypertension (ATEPH) and to explore the feasibility of diagnosing pulmonary hypertension (PH) through the Doppler flow spectra of the superior vena cava (SVC). A canine model of ATEPH was developed by infusing thrombus into the right femoral vein. The pulmonary arterial pressure was simultaneously measured via a right heart catheter with the guidance of ultrasound. The maximum systolic peak flow velocity (SPV), ventricular reverse peak flow velocity (VRPV), diastolic peak flow velocity (DPV), and atrial reverse peak flow velocity (ARPV) of the SVC were measured by transthoracic echocardiography. ATEPH was successfully established in 24 dogs (88.9%) with the pulmonary arterial systolic pressure (PASP) greater than 30 mmHg. ARPV increased significantly with the increase of PASP, and was positively correlated with PASP (PSPV larger than 0.8 could be better adopted to identify all the subjects with PH in this study. The Doppler flow spectra of the SVC could be employed to assess the severity of ATEPH.  PMID:21916968

  8. Covered stent placement for the treatment of malignant superior vena cava syndrome: Is unilateral covered stenting and effective?

    International Nuclear Information System (INIS)

    To evaluate the safety and efficacy of unilateral covered stent placement in patients with malignant superior vena cava (SVC) syndrome. Between October 2008 and November 2012, expanded polytetrafluoroethylene-covered stent placement for malignant SVC syndrome was performed in 40 consecutive patients (35 men and five women; mean age, 61.4 years; range, 35-81 years). All covered stents were unilaterally placed within the SVC or across the venous confluence when needed to relieve venous obstruction and prevent tumor overgrowth, regardless of patency of contralateral brachiocephalic veins. Stent placement was technically successful in all patients. There were no major complications. Of the 37 patients symptomatic prior to stent placement, 34 (92%) experienced complete symptomatic relief 1-8 days after stent placement. Of the 29 patients who underwent covered stent placement across the venous confluence, nine patients had patent contralateral brachiocephalic veins prior to stent placement. However, no sign of SVC obstruction or contralateral upper extremity venous thrombosis was observed during the follow-up period. Kaplan-Meier analysis revealed median patient survival of 163 days. Stent occlusion occurred in four (10%) of 40 patents. Cumulative stent patency rates at 1, 3, 6, and 12 months were 95%, 92%, 86%, and 86%, respectively. Unilateral covered stent placement appears to be a safe and effective method for treating malignant SVC syndrome, despite the location of SVC occlusion.

  9. Advanced Stage T-Cell Non-Hodgkin lymphoma in an 11-Month-Old Infant and Related Superior Vena Cava Syndrome: Importance of Transthoracic Echocardiography.

    Science.gov (United States)

    Yilmaz, Osman; Karabag, Kezban; Keskin Yildirim, Zuhal; Calik, Muhammet; Kilic, Omer

    2014-01-01

    Superior vena cava syndrome (SVCS) is rare in infants. Non-Hodgkin lymphoma is the most common cause of SVCS in children. Swelling in the face and neck are the most common clinical symptoms associated with this syndrome. However, these clinical findings are also observed in allergic diseases, which therefore often leads to misdiagnosis. Here, we reported the importance of echocardiography in diagnosing SVCS in an infant with advanced stage non-Hodgkin lymphoma. PMID:24639614

  10. Advanced Stage T-Cell Non-Hodgkin lymphoma in an 11-Month-Old Infant and Related Superior Vena Cava Syndrome: Importance of Transthoracic Echocardiography

    OpenAIRE

    YILMAZ, Osman; KARABAG, Kezban; KESKIN YILDIRIM, Zuhal; CALIK, Muhammet; KILIC, Omer

    2014-01-01

    Superior vena cava syndrome (SVCS) is rare in infants. Non-Hodgkin lymphoma is the most common cause of SVCS in children. Swelling in the face and neck are the most common clinical symptoms associated with this syndrome. However, these clinical findings are also observed in allergic diseases, which therefore often leads to misdiagnosis. Here, we reported the importance of echocardiography in diagnosing SVCS in an infant with advanced stage non-Hodgkin lymphoma.

  11. The characteristics of action potential and nonselective cation current of cardiomyocytes in rabbit superior vena cava

    Institute of Scientific and Technical Information of China (English)

    WANG Pan; YANG XinChun; LIU XiuLan; BAO RongFeng; LIU TaiFeng

    2008-01-01

    As s special focus in initiating and maintaining atrial fibrillation (AF), cardiomyocytes in superior vena cavs (SVC) have distinctive electrophysiological characters. In this study, we found that comparing with the right atrial (RA) cardiomyoctyes, the SVC cardiomyoctyes had longer APD90 at the different basic cycle lengths; the conduction block could be observed on both RA and SVC cardiomyoctyes. A few of SVC cardiomyoctyes showed slow response action potentials with automatic activity and some others showed early afterdepolarization (EAD) spontaneously. Further more, we found that there are nonselective cation current (INs) in both SVC and RA cardiomyocytes. The peak density of INs in SVC cardiomyocytes was smaller than that in RA cardiomyocytes. Removal of extracellular divalent cation and glucose could increase INs in SVC cardiomyocytes. The agonist or the antagonist of INs may increase or decrease APD. To sum up, some SVC cardiomyocytes possess the ability of spontaneous activity; the difference of transmembrane action potentials between SVC and RA cardiomyocytes is partly because of the different density of INs between them; the agonist or the antagonist of INs can increase or decrease APD leading to the enhancement or reduction of EAD genesis in SVC cardiomyocytes. INs in rabbit myocytes is fairly similar to TRPC3 current in electrophysiological property, which might play an important role in the mechanisms of AF.

  12. Serum cortisol values, superior vena cava flow and illness severity scores in very low birth weight infants.

    LENUS (Irish Health Repository)

    Miletin, J

    2012-02-01

    OBJECTIVE: Recent evidence suggests that high cortisol concentrations are associated with increased morbidity and mortality in very low birth weight (VLBW) infants. Neonatal illness severity and mortality risk scores are reliable in predicting morbidity and mortality. The objectives were (i) to assess the correlation between serum cortisol levels and clinical assessment of multi-organ dysfunction\\/illness severity scores (CRIB II, SNAPPE-II and neonatal multiple organ dysfunction score (NEOMOD)) in first 24 h in VLBW infants and (ii) to assess the relationship between surrogates of end organ blood flow and serum cortisol levels. STUDY DESIGN: A prospective observational cohort study. Neonates with birth weight <1500 g were eligible for enrollment. Echocardiography evaluation of superior vena cava (SVC) flow was carried out in the first 24 h life. Cortisol levels were measured simultaneously and appropriate clinical scores were calculated. RESULT: A total of 54 VLBW neonates were enrolled following parental consent. Two patients were excluded because of congenital malformations. In 14 babies the cortisol value was not simultaneously obtained. The mean birth weight was 1.08 kg, mean gestational age was 27.8 weeks. There was a significant correlation between cortisol and NEOMOD score (P=0.006). There was no correlation between cortisol and CRIB II score (P=0.34), SVC flow (P=0.49) and mean arterial blood pressure respectively (P=0.35). CONCLUSION: There was no correlation between SVC flow and cortisol values or between cortisol and mean blood pressure values. There was a significant correlation between cortisol levels and neonatal organ dysfunction score evaluated suggesting that stressed VLBW infants do mount a cortisol response.

  13. Cerebral tissue oxygenation index and superior vena cava blood flow in the very low birth weight infant.

    LENUS (Irish Health Repository)

    Moran, M

    2012-02-01

    BACKGROUND: Superior vena cava (SVC) flow assesses blood flow from the upper body, including the brain. Near infrared spectroscopy (NIRS) provides information on brain perfusion and oxygenation. AIM: To assess the relationship between cerebral tissue oxygenation index (cTOI) and cardiac output measures in the very low birth weight (VLBW) infant in the first day of life. METHODS: A prospective observational cohort study. Neonates with birth weight less than 1500 g (VLBW) were eligible for enrollment. Newborns with congenital heart disease, major congenital malformations and greater than Papile grade1 Intraventricular Haemorrhage on day 1 of life were excluded. Echocardiographic evaluation of SVC flow was performed in the first 24 h of life. Low SVC flow states were defined as a flow less than 40 mL\\/kg\\/min. cTOI was measured using NIRO 200 Hamamatsu. RESULTS: Twenty-seven VLBW neonates had both echocardiography and NIRS performed. The median (range) gestation was 29\\/40 (25 + 3 to 31 + 5 weeks) and median birth weight was 1.2 kg (0.57-1.48 kg). The mean (SD) TOI was 68.1 (7.9)%. The mean (SD) SVC flow was 70.36(39.5) mLs\\/kg\\/min. The correlation coefficient of cerebral tissue oxygenation and SVC flow was r = 0.53, p-value 0.005. There was a poor correlation between right and left ventricular output and cTOI which is not surprising considering the influence of intra- and extracardiac shunts. CONCLUSION: There is a positive relationship between cerebral TOI values and SVC flow in the very low birth infant on day one of life.

  14. Electrophysiological characteristics of paroxysmal atrial fibrillation originating from superior vena cava: a clinical analysis of 30 cases.

    Science.gov (United States)

    Shi, Xiang-Min; Yuan, Hong-Tao; Guo, Hong-Yang; Guo, Jian-Ping; Shan, Zhao-Liang; Wang, Yu-Tang

    2015-01-01

    To analyze characteristics of electrocardiogram (ECG), electrophysiological intracardiac mapping and radiofrequency ablation (RF) of paroxysmal atrial fibrillation (PAF) originating from superior vena cava (SVC), aiming to investigate electrophysiological characteristics of PAF with SVC origin. Clinical data of 30 subjects (18 men and 12 women, aged, 58.6 ± 15.5 years) with PAF of SVC origin were retrospectively analyzed; All patients underwent RF during 2006.9-2012.7. ECG of AF and atrial premature contractions (APCs), procedure and fluoroscopic time, numbers of ablation sites within SVC, complications and success rate were studied. Compared with P wave of sinus rhythm (SR), APCs of SVC origin exhibited higher amplitude in lead II (0.23 ± 0.11 vs. 0.15 ± 0.06 mv), III (0.19 ± 0.09 vs. 0.13 ± 0.08 mv), AVF (0.21 ± 0.13 vs. 0.14 ± 0.10 mv), V2 (0.24 ± 0.07 vs. 0.15 ± 0.09 mv) and V3 (0.21 ± 0.09 vs. 0.12 ± 0.05 mv) (P atrial flutter within 1 month after completion of ablation and were controlled by antiarrhythmic drugs. The APCs and AF of SVC origin manifested distinctive ECG features, which could be helpful to distinguish SVC from other foci before ablation, the completion of SVCI required shorter procedure and fluoroscopic time, as well as less ablation points, and meanwhile, the success rate was high with less complication. PMID:25784993

  15. Tratamento convencional e endovascular para rara associação de doenças: síndrome de veia cava superior e aneurisma aorto-ilíaco - controle após 12 meses Conventional and endovascular treatment for a rare combination of diseases: superior vena cava syndrome and aortoiliac aneurysm - control after 12 months

    Directory of Open Access Journals (Sweden)

    Gustavo Petorossi Solano

    2011-09-01

    Full Text Available A associação entre a síndrome de veia cava superior e uma dilatação aneurismática das artérias aorta e ilíacas não é comum. A abordagem de cada uma destas patologias pode ser efetuada através do modo convencional, com cirurgia aberta ou pela técnica endovascular. Neste trabalho, relatamos as duas modalidades de intervenção cirúrgica executadas e discutimos suas indicações e os resultados deste caso em particular.The association between superior vena cava syndrome and an aorto-iliac aneurysm is not common. The approach to each of theses diseases can be either by the conventional way with open surgery or by endovascular techniques. We report the two methods of surgical intervention and discuss their indications and results in this particular case.

  16. Liver Trapping of (99m)Tc Macroaggregated Albumin During Ventilation/Perfusion Scintigraphy in a Patient With Superior Vena Cava Stenosis as Demonstrated by SPECT/CT.

    Science.gov (United States)

    Rousseau, Etienne; Leclerc, Yves; Prévost, Sylvain; Keu, Khun Visith

    2015-07-01

    A 50-year-old woman presented to our institution with a 1-day history of right posterior thoracic pain and dyspnea. She had a previous history of conservative resection of a high-grade basal-like infiltrating ductal carcinoma of the right breast 2 years before, subsequently treated by chemotherapy and radiotherapy. A ventilation and perfusion (VQ) scintigraphy performed for suspected pulmonary embolism showed an abnormal deposition of (99m)Tc macroaggregated albumin ((99m)Tc-MAA) in the left lobe of the liver. This unusual finding prompted additional imaging that demonstrated a superior vena cava stenosis. PMID:26018706

  17. Repositioning and Leaving In Situ the Central Venous Catheter During Percutaneous Treatment of Associated Superior Vena Cava Syndrome: A Report of Eight Cases

    International Nuclear Information System (INIS)

    Purpose: To describe a combined procedure of repositioning and leaving in situ a central venous catheter followed by immediate percutaneous treatment of associated superior vena cava syndrome (SVCS). Methods: Eight patients are presented who have central venous catheter-associated SVCS (n = 6 Hickman catheters, n = 2 Port-a-cath) caused by central vein stenosis (n = 4) or concomitant thrombosis (n = 4). With the use of a vascular snare introduced via the transcubital or transjugular approach, the tip of the central venous catheter could be engaged, and repositioned after deployment of a stent in the innominate or superior vena cava. Results: In all patients it was technically feasible to reposition the central venous catheter and treat the SVCS at the same time. In one patient flipping of the Hickman catheter in its original position provoked dislocation of the released Palmaz stent, which could be positioned in the right common iliac vein. Conclusion: Repositioning of a central venous catheter just before and after stent deployment in SVCS is technically feasible and a better alternative than preprocedural removal of the vascular access

  18. Suction against resistance: a new breathing technique to significantly improve the blood flow ratio of the superior and inferior vena cava

    International Nuclear Information System (INIS)

    Optimal contrast within the pulmonary artery is achieved by the maximum amount of contrast-enhanced blood flowing through the superior vena cava (SVC), while minimum amounts of non-contrasted blood should originate from the inferior vena cava (IVC). This study aims to clarify whether ''suction against resistance'' might optimise this ratio. Phase-contrast pulse sequences on a 1.5T MRI magnet were used for flow quantification mean flow (mL/s), stroke volume (Vol) in the SVC and IVC in volunteers. Different breathing manoeuvers were analysed repeatedly: free breathing; inspiration; expiration; suction against resistance, and Valsalva. To standardise breathing commands, volunteers performed suction and Valsalva manoeuvers with an MR-compatible manometer.??Suction against resistance was associated with a significant drop of the IVC/SVC flow quotient (1.63 [range 1.3-2.0] p 0.05).??Suction against resistance caused a significant drop in the IVC/SVC quotient. Theoretically, this breathing manoeuver might significantly improve the enhancement characteristics of CT angiography. (orig.)

  19. Case report: Completely unroofed coronary sinus with a left superior vena cava draining into the left atrium studied by cardiovascular magnetic resonance

    International Nuclear Information System (INIS)

    A persistent left superior vena cava (LSVC) draining through a dilated coronary sinus into the right atrium is a relatively common congenital cardiovascular anomaly. It is readily identified by cardiovascular magnetic resonance (CMR). However, a LSVC draining into the left atrium (LA) and associated with unroofing of the coronary sinus, with resulting interatrial communication, is rare and may have important clinical consequences. As with any large atrial septal defect, it can be associated with a higher than expected incidence of pulmonary arterial hypertension, systemic embolization, and brain abscesses. In this report, we present a case of a completely unroofed coronary sinus with a persistent LSVC draining directly into the LA and illustrate the role of CMR in the diagnosis and evaluation of such anomalies

  20. Revista Izquierdas, N° 21, Octubre 2014

    OpenAIRE

    Pérez, Aníbal; Bortolotti, Mariana; Figueroa, Noelia; Grimaldi, Nicolás; Aiziczón, Fernando; Ponce, José Ignacio; Serra, María Loreto; Corvalán, Luis; Garrido, Pablo; Díaz, Francisco; Chaia de Bellis, Jonás; Samaniego, Augusto

    2015-01-01

    Revista Izquierdas, publicación científica dedicada a la historiografía sobre el socialismo latinoamericano, http://www.izquierdas.cl/ Publicada por el Instituto de Estudios Avanzados de la Universidad de Santiago de Chile

  1. Real-time phase-contrast flow MRI of haemodynamic changes in the ascending aorta and superior vena cava during Mueller manoeuvre

    International Nuclear Information System (INIS)

    Aim: To evaluate the potential of real-time phase-contrast flow magnetic resonance imaging (MRI) at 40 ms resolution for the simultaneous determination of blood flow in the ascending aorta (AA) and superior vena cava (SVC) in response to reduced intrathoracic pressure (Mueller manoeuvre). Materials and methods: Through-plane flow was assessed in 20 healthy young subjects using real-time phase-contrast MRI based on highly undersampled radial fast low-angle shot (FLASH) with image reconstruction by regularized non-linear inversion. Haemodynamic alterations (three repetitions per subject = 60 events) were evaluated during normal breathing (10 s), inhalation with nearly closed epiglottis (10 s), and recovery (20 s). Results: Relative to normal breathing and despite interindividual differences, reduced intrathoracic pressure by at least 30 mmHg significantly decreased the initial peak mean velocity (averaged across the lumen) in the AA by −24 ± 9% and increased the velocity in the SVC by +28 ± 25% (p < 0.0001, n = 23 successful events). Respective changes in flow volume per heartbeat were −25 ± 9% in the AA and +49 ± 44% in the SVC (p < 0.0001, n = 23). Flow parameters returned to baseline during sustained pressure reduction, while the heart rate was elevated by 10% (p < 0.0001) after the start (n = 24) and end (n = 17) of the manoeuvre. Conclusions: Real-time flow MRI during low intrathoracic pressure non-invasively revealed quantitative haemodynamic adjustments in both the AA and SVC. - Highlights: • Direct monitoring of rapid haemodynamic adjustments can be achieved using real-time phase contrast MRI. • This technique allows for the simultaneous measurement of blood flow in multiple vessels. • It may improve our understanding of the cardiovascular consequences of sleep apnoea

  2. Malignant thrombosis of the superior vena cava caused by non-small-cell lung cancer treated with radiation and erlotinib: a case with complete and prolonged response over 3 years

    Directory of Open Access Journals (Sweden)

    Wang JY

    2013-07-01

    Full Text Available Jianyang Wang,1 Jun Liang,1 Wenqing Wang,1 Han Ouyang,2 Luhua Wang11Department of Radiation Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 2Department of Diagnostic Radiology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of ChinaAbstract: Most cases of superior vena cava (SVC syndrome resulting from neoplasm, especially from lung cancer, remain a serious challenge to treat. Here, for the first time as far as we are aware, we report the case of a non-small-cell lung cancer patient with a massive SVC malignant thrombosis who was treated with thoracic irradiation and erlotinib. The treatment regimen consisted of erlotinib 150 mg/day and a total dose of 66 Gy/33 fractions delivered to the tumor, malignant thrombosis, and metastasis mediastinal lymph nodes. The malignant thrombosis responded dramatically and the combined regimen was well tolerated. After discharge, the erlotinib was prescribed as maintenance therapy. The patient was followed closely for the next 3 years. During this time, positron emission tomography/computed tomography scans and serum tumor marker screens were undertaken. By 6 months, the primary tumor showed complete response and by 9 months, the SVC thrombosis had disappeared. No sign of relapse has been found to date.Keywords: superior vena cava syndrome, radiotherapy, thoracic irradiation, neoplasm

  3. La izquierda chilena contemparánea

    Directory of Open Access Journals (Sweden)

    Manuel Antonio Garretón

    2006-01-01

    Full Text Available En este artículo, el autor examina las particularidades de la izquierda chilena para entender su papel en los gobiernos democráticos desde los años 70. El autor parte de la premisa de la existencia, durante los años 90, de dos izquierdas: una, el socialismo dentro de la coalición; la otra, el comunismo fuera de ella. En el trabajo se sostiene que la izquierda socialista ha sido el principal motor de la coalición y su papel específico se ha concentrado en los temas socio-económicos ligados a la igualdad, a la justicia, a los derechos humanos y a las propuestas culturales de tipo progresista. Asimismo, se analizan las particularidades esenciales de los gobiernos democráticos chilenos y se examinan los temas y las tareas pendientes. El artículo concluye con un balance del papel de la izquierda y de los retos que aún tiene por delante.

  4. 上腔静脉X线投影测量与患者相关因素的探讨%Studying and analyzing the relationship between X-ray cephalometry of superior vena cava and patient-related factors

    Institute of Scientific and Technical Information of China (English)

    耿才正; 陈姬雅; 王建铭

    2012-01-01

    Objective The aim of this study was to explore the relationship between the variables (age, sex, height, weight) and the lower segment of superior vena cava on the posteroanterior thorax radiograph, and to improve the in-vitro measurements accuracy of beside PICC. Methods The data of 100 cases adults physical examination were collected in Tai-Zhou hospital. We measnred the distance between the middle of the lower segment of superior vena cava to the inner side of the right clavicle, observed the front rib units which was projected the middle of the lower segment of superior vena cava, and then analyzed the correlation between the data (distance between vertical segment, the front rib units) and the variable (age, sex, height, weight) with IBM SPSS Statistics vl9 software. Results The front rib units planes was no significant correlation with sex. age, height and weight ( r =0. 196~0. 130, P =0. 051~0. 936). The distance between vertical segment was obvious correlation with body height and sex ( r =0. 197, -0. 339, P =0. 049,0. 001) and no significant correlation with age and body weight( r =0. 052, -0. 066, F =0. 604, 0. 512). Conclusion The projection of the lower segment of superior vena cava has the individual differences, which is affected by many factors besides age, sex, height and weight. Thus, it is difficult to improve the in-vitro measurements accuracy of beside PICC by analyzing the age. sex, height and weight of the patient.%目的 探讨成人上腔静脉下段后前位胸片投影是否与性别、年龄、身高、体重相关,以期提高床旁PICC体外测量的准确性.方法 成人体检资料100份,在后前位胸片上测量上腔静脉下段中点至右锁骨内端下缘距离(即横L体外测量法垂直段距离,以下简称“垂直段距离”),上腔静脉下段中点所在前肋肋单元平面,各数据会同性别、年龄、身高、体重,利用IBM SPSS Statistics v19统计软件作Pearson相关分析.结果 上腔静脉下段中点

  5. Pregnancy complicated by superior vena cava thrombosis and pulmonary embolism in a patient with Behcet disease and the use of heparin for treatment

    International Nuclear Information System (INIS)

    Batch disease is a multi systemic vasculitis of unknown origin. Vascular involvement has been considered to result from systemic vasculitis, occurs in 5-10% of these patients. We report a 34-year-old pregnant woman complicated by superior vena ca va thrombosis, and pulmonary embolism in a patient with Batch disease. (author)

  6. México: una izquierda mercurial

    OpenAIRE

    Raphael, Ricardo

    2006-01-01

    Este artículo explora la naturaleza de la actual izquierda en México, a la luz de la revisión de algimos de los cambios que han operado en las identidades de las diversas formaciones que se reconocen como parte de dicha corriente política. El autor se propone resaltar tanto las consistencias como las contradicciones de una corriente política que no ha logrado decidir con claridad entre la democracia y la revolución.

  7. La izquierda y los derechos humanos en el siglo XXI

    Directory of Open Access Journals (Sweden)

    Manuel Alcaraz Ramos

    2000-01-01

    Full Text Available El artículo trata de ofrecer una visión general de las relaciones históricas entre la izquierda, en sus diversas tradiciones, y los problemas políticos planteados por la emergencia y desarrollo conceptual y práctico de los Derechos Humanos. Se resalta que la relación entre izquierdas y Derechos Humanos ha estado marcada, en muchas ocasiones, por la contradicción cuando no por determinadas incompresiones y desencuentros. Sin embargo, el fin de la Guerra Fría y las convulsiones producidas en la izquierda por los cambios experimentados abren un nuevo curso ideológico a la relación izquierda - Derechos humanos, hasta el punto de que el autor considera inevitable que la defensa radical de éstos debe comvertirse en un eje central de la recuperación de la identidad perdida de las izquierdas.

  8. Failure of Femoral Access to Electrophysiological Evaluation Due to Aplasia of the Inferior Vena Cava

    Science.gov (United States)

    Parahuleva, Mariana S.; Burgazli, Mehmet; Soydan, Nedim; Franzen, Wolfgang; Güttler, Norbert; Erdogan, Ali

    2016-01-01

    We report an interesting case of a man with a persistent left superior vena cava (PLSVC) with left azygos vein who underwent electrophysiological evaluation. Further evaluation revealed congenital dilated azygos vein, while a segment connecting the inferior vena cava (IVC) to the hepatic vein and right atrium was missing. The azygos vein drained into the superior vena cava, and the hepatic veins drained directly into the right atrium. The patient did not have congenital anomalies of the remaining thoracoabdominal vasculature. PMID:27257399

  9. The Role of Nasopharyngeal Temperature Monitoring in Detection of a Malpositioned Superior Vena Cava Cannula in an Emergency Coronary Artery Bypass in a Patient With Ventricular Septal Defect

    Directory of Open Access Journals (Sweden)

    A Dabbagh

    2010-03-01

    Full Text Available A 55 year-old woman was admitted to the CCU ward of our university hospital due to typical chest pain. The patient received supportive care and was transferred to the operating room for an emergency repair of the ventricular septal defect (VSD and myocardial revascularization. The surgical team was notified regarding the tolerance to cooling detected by the temperature monitoring and also, the congestion of eye and blanching of forehead. After a few maneuvers, the cannula was repositioned. In a few seconds, the forehead was cooled, while the airlocking episodes were lifted completely and the blanching and chemosis in the face and eyes all resolved. The septal defect was approached through the left ventricle; a 15 in 20 mm foramen, due to the ischemic rupture of the superior portion of the anteroseptal wall, was repaired with a patch of hemoshield. The incision over the LV was then repaired with 2 parallel bands of felt. The patient was operated on and transferred to the intensive care unit.

  10. 支架植入术治疗上腔静脉综合征:金属支架的选择%Stent implantation for the treatment of superior vena cava syndrome:Selection of metallic stents

    Institute of Scientific and Technical Information of China (English)

    杨维竹; 潘恒; 黄兢姚; 江娜; 郑曲彬; 林俊清

    2013-01-01

    目的 探讨支架植入术治疗上腔静脉综合征(SVCS)中选择金属支架的要点.方法 收集51例SVCS,CT均显示上腔静脉(SVC)明显狭窄或闭塞;经股静脉穿刺插管,以球囊扩张狭窄或闭塞段后植入1枚或多枚金属内支架(Smart支架、Z-Stent支架、Fluency支架),直至复查造影显示SVC血流通畅.术后评价疗效.结果 51例SVCS中,50例双侧头臂静脉汇合处受累.支架植入术均获成功,28例植入Smart支架,17例植入Z-Stent,4例植入Fluency支架,2例为Smart支架内套Fluency支架;31例植入1枚支架,12例植入2枚支架,8例植入3枚支架.支架植入后48例临床症状明显改善,上腔静脉压显著下降.术中无SVC破裂等严重并发症发生.46例接受随访,其中18例于随访期内重现SVC阻塞症状,包括11例植入Smart支架、7例植入Z-Stent支架者,植入Fluency支架者未见复发.结论 根据SVC病变程度、位置,选择植入结构和特性适当的金属支架可使介入治疗SVCS安全、有效.%Objective To investigate the elective points of different types of metallic stents for implantation in patients with superior vena cava syndrome (SVCS).Methods Fifty-one patients with SVCS were enrolled.Enhanced CT showed obvious stenosis or occlusion of the superior vena cava (SVC) in all patients.Stent implantation was performed after balloon dilatation through femoral vein.One or more stents (Smart stent,Z-Stent and Fluency stent) were positioned till the obstruction of SVC flow was relieved.The therapeutic effects of stent implantation were evaluated.Results Among all 51 patients,invasion of bilateral brachiocephalic veins were observed in 50 patients.Technical success of stent implantation was achieved in all patients including 28 patients with Smart stent,17 with Z-Stent,4 with Fluency stent and 2 patients with Fluency+Smart stent.Significant improvements of SVCS symptoms was noticed in 48 patients after stent implantation,and the pressure of SVC

  11. VENA RENAL IZQUIERDA RETRO-AÓRTICA. VENA RENAL IZQUIERDA RETRO-AÓRTICA

    OpenAIRE

    Russo, Alejandro M.

    2013-01-01

    Understanding of the renal venous anatomy and its variations is essential to perform any procedure in the region. We report a variation of the left renal venous tree found during a cadaveric dissection, the retro-aortic left renal vein. It was a unique venous trunk that emerged from the left renal hilum and traveled dorsally to the abdominal aorta before reaching the inferior vena cava. The existence of this vessel is associated to the embryology of the inferior vena cava. We discuss the surg...

  12. 胎儿永存左上腔静脉和相关先天异常的产前MRI诊断%Prenatal Diagnosis of Persistent Left Superior Vena Cava and Its Associated Congenital Anomalies by MRI

    Institute of Scientific and Technical Information of China (English)

    董素贞; 朱铭; 李奋; 钟玉敏

    2012-01-01

    Purpose: To evaluate the associated conditions and the appearances of persistent left superior vena cava (PLSVC) detected in fetal life by MRI. Methods: Twelve pregnant women with gestation from 21 to 35 weeks were studied on a 1.5 T superconductive MR unit within 24 to 48 hours after ultrasound studies. The imaging protocols included fast-imaging employing steady-state acquisition (FIESTA) or balanced fast field echo (B-FFE), single-shot fast spin echo (SSFSE) or single shot turbo spin echo (SSTSE) and non-gated cine FIESTA/ "real-time" B-TFE sequences in the axial, coronal, and sagittal planes relative to the fetal brain, thorax, abdomen, especially thorax and heart. Prenatal US and MR imaging findings were compared with postnatal diagnoses. Postnatal evaluation included postnatal imaging, surgery and autopsy. Results: All 12 cases were with bilateral superior vena cava, one of the cases accompanied the bridging vein. According to the associated congenital anomalies, ten cases accompanied cardiac malformations, one case accompanied oligohydramnios and one case with no associated condition. Four of ten cases with cardiac malformations also accompanied etracardiac malformations. For PLSVC, all 12 cases were diagnosed correctly by MRI, and by prenatal US five cases were accurately diagnosed and seven cases were missed. For associated cardiac malformations, Prenatal MRI provided accurate diagnosis in seven cases, misdiagnosis in one case and missed diagnosis in two cases, prenatal US with accurate diagnosis in seven cases, misdiagnosis in two cases and missed diagnosis in one case. Conclusion: Prenatal MRI is effective in the assessment of fetal PLSVC. The diagnostic accuracy of prenatal ultrasound for associated cardiac abnormalities was better than MRI, but the diagnostic accuracy of prenatal ultrasound for associated extracardiac abnormalities was not better than MRI.%目的:探讨胎儿永存左上腔静脉和相关畸形的产

  13. El nuevo dilema de la izquierda: identidad vs justicia social

    OpenAIRE

    José María Seco Martínez; Rafael Rodríguez Prieto

    2011-01-01

    ResumenLa izquierda carece en la actualidad de iniciativa real. Desde la caída del muro se vio ampliamente desbordada por el neocapitalismo. La idea de justicia social dejaba entonces de tener valor. Desde entonces los partidos de izquierda no asumen posiciones diáfanas en este sentido. No reivindican la justicia social y son ambiguos frente a las condiciones que impone el capitalismo. Sitúan el eje de sus discurso político en cuestiones más relacionadas con la identidad, que con la justicia ...

  14. La izquierda colombiana, un caso particular en el escenario latinoamericano

    Directory of Open Access Journals (Sweden)

    Jeisson Oswaldo Martínez Leguízamo

    2015-04-01

    Full Text Available En los últimos 25 años en el panorama político de Latinoamérica se pueden apreciar dos fenómenos evidentes. Primero, la crisis del modelo neoliberal instaurado en el continente a partir del Consenso de Washington y, segundo, la respuesta popular que condujo al ascenso de movimientos pertenecientes a un amplio espectro de la izquierda. Colombia, a pesar de mantener una activa movilización social, no ha logrado sumarse a esta tendencia regional. La intervención permanente de los EE.UU., la violencia usada como instrumento político por parte de las élites colombianas y la dispersión de la izquierda aparecen entre las principales explicaciones de este hecho. Como respuesta a la violencia estatal y ante el cierre de los espacios democráticos, una parte de la izquierda se alzó en armas impugnando la legitimidad del régimen, mientras que otra se mantuvo dentro de la institucionalidad a pesar de los riesgos que ello conllevaba. El Estado, decidido a terminar por la fuerza con el alzamiento armado, adoptó una tendencia militarista encaminada a la persecución de las guerrillas, pero que se extendió al conjunto de la izquierda democrática y del movimiento social. Sin embargo, los Diálogos de Paz han abierto la posibilidad de superar la confrontación. Ante la eventual firma de un acuerdo de paz, vuelve a cobrar vigencia el debate sobre la unidad de la izquierda, pero esta vez con un elemento adicional: la posibilidad de que los movimientos políticos que resulten del acuerdo puedan sumarse a la tan anhelada convergencia.

  15. 冠状窦顶重建治疗无顶综合征合并心内膜垫缺损和永存左上腔静脉%Reestablishment the roof of coronary sinus in treating unroofed coronary sinus syndrome with endocardial cushion defect and persistent left superior vena cava

    Institute of Scientific and Technical Information of China (English)

    范祥明; 闫军; 王强; 罗国华; 吕晓东; 刘迎龙

    2010-01-01

    目的 总结冠状静脉窦顶重建在无顶冠状静脉窦综合征合并心内膜垫缺损和永存左上腔静脉的外科治疗经验.方法 2000年1月至2008年1月共753例心内膜垫缺损病人行畸形矫治手术,15例(2%)同时合并永存左上腔静脉和无顶冠状静脉窦综合征,包括部分型心内膜垫缺损12例,完全型心内膜垫缺损3例.均在行心内膜垫缺损矫治术同期重建冠状静脉窦顶,1例直接结扎左上腔静脉,14例将左上腔静脉隔入右房,其中10例用自体心包补片,4例通过折叠左房后壁完成冠状静脉窦顶的重建,最后在重建的冠状静脉窦开口的左侧缝合修补房间隔缺损.结果 术后早期1例死于严重肺部感染.术后随访3个月~6年,无远期死亡病例.14例术后均未见腔静脉、肺静脉回流梗阻和心房水平残余分流.1例行左房后壁折叠分隔左上腔静脉者术后早期超声心动图提示左上腔静脉入左房顶处血流速度偏快.结论 合并心内膜垫缺损和永存左上腔静脉的无顶冠状静脉窦综合征外科治疗有难度,冠状窦顶重建技术能够取得良好的治疗效果.%Objective To summarize the surgical procedures of unroofed coronary sinus syndrome with endocardial cushion defect and persistent left superior vena cava.Methods From 2000 to 2008,753 cases of endocardial cushion defect underwent surgical repair.Among them 15 cages(2.0%)were associated with persistent left superior vena cava and unroofed coronary sinus syndrome.The drainage of the persistent left superior vena cava and coronary vein were corrected simultaneously during the operation by reestablishing the roof of the coronary sinus.The persistent left superior vena cava were drained to right atrium by intra-atrial tunnel with pericardial patch or left atrium folding in 14 cases and it was ligated in the remain one.Most of the coronary veins were drained into right atrium after the correction of cardiac defect.Results One patient

  16. El nuevo dilema de la izquierda: identidad vs justicia social

    Directory of Open Access Journals (Sweden)

    José María Seco Martínez

    2011-06-01

    Full Text Available ResumenLa izquierda carece en la actualidad de iniciativa real. Desde la caída del muro se vio ampliamente desbordada por el neocapitalismo. La idea de justicia social dejaba entonces de tener valor. Desde entonces los partidos de izquierda no asumen posiciones diáfanas en este sentido. No reivindican la justicia social y son ambiguos frente a las condiciones que impone el capitalismo. Sitúan el eje de sus discurso político en cuestiones más relacionadas con la identidad, que con la justicia social y la clase social. De la respuesta a la pregunta ¿sigue siendo hoy una prioridad para la izquierda la búsqueda de la justicia social?, dependerá en buena medida la razón de su existencia. Abstract Nowadays the left lacks initiative. Since the fall of the Berlin Wall it was widely exceded by neocapitalism. At that time the idea of social justice had no longer any importance. Since then the left parties did not take up a strong stance, they do not demand social justice and they are ambiguous  facing the conditions imponed by capitalism. They focus their political programme mainly on identity more than  social justice and social class. Their raison d´être will depend to a great extent on the way they can answer the question, is it still today a priority for the left the search for social justice?

  17. La izquierda en Venezuela: evolución y situación actual

    OpenAIRE

    González Fuentes, Sonia

    2009-01-01

    Históricamente, la izquierda en Venezuela se ha caracterizado por el enfrentamiento entre la izquierda socialdemócrata y la izquierda radical. Durante mucho tiempo la primera estuvo liderada por AD y la segunda por el PCV. En ambos partidos surgieron disidentes que crearon nuevas formaciones pasando de una a otra corriente. Así de AD surgió el MIR y el MEP, y del PCV, el MAS y LCR. Uno de los factores que más ha condicionado el avance electoral y el surgimiento de las fuerzas de izquierda ha ...

  18. Frecuencia de hipertrofia ventricular izquierda en pacientes con enfermedad vascular cerebral

    OpenAIRE

    Juan Manuel Pérez Zúñiga; Alberto Trejo González; Óscar Gerardo Velasco Luna; Víctor García Barrera

    2011-01-01

    Antecedentes: la enfermedad vascular cerebral es la cuarta causa de muerte en México. Los pacientes con hipertrofia ventricular izquierda tienen un cociente de probabilidad de padecerla de incluso 3.0. Objetivo: determinar la frecuencia de hipertrofia ventricular izquierda en pacientes con enfermedad vascular cerebral, en un hospital de tercer nivel del ISSSTE. Pacientes y método: se hizo un estudio observacional, prospectivo, descriptivo, transversal y abierto en pacientes con diagnóstico...

  19. Nociones sobre “democracia obrera” y “burocracia sindical” en la izquierda de los años 70. Una comparación entre la izquierda peronista y la izquierda marxista

    OpenAIRE

    Farace, Rafael; Gabriela JÄKEL

    2016-01-01

    Este trabajo estudia las nociones sobre democracia obrera y burocracia sindical utilizadas por las organizaciones de izquierda durante la década de 1970 a partir del análisis de fuentes documentales como volantes, boletines, prensa y documentos partidarios. Se examinará en particular los casos de dos organizaciones peronistas (Montoneros y Peronismo de Base) y una organización marxista (Partido Revolucionario de los Trabajadores – Ejército Revolucionario del Pueblo), establecié...

  20. A Novel Technique for Inferior Vena Cava Filter Extraction

    Energy Technology Data Exchange (ETDEWEB)

    Johnston, Edward William, E-mail: ed.johnston@doctors.org.uk; Rowe, Luke Michael Morgan; Brookes, Jocelyn; Raja, Jowad; Hague, Julian, E-mail: julian.hague@uclh.nhs.uk [University College Hospital, Multidisciplinary Endovascular Team (United Kingdom)

    2013-05-02

    Inferior vena cava (IVC) filters are used to protect against pulmonary embolism in high-risk patients. Whilst the insertion of retrievable IVC filters is gaining popularity, a proportion of such devices cannot be removed using standard techniques. We describe a novel approach for IVC filter removal that involves snaring the filter superiorly along with the use of flexible forceps or laser devices to dissect the filter struts from the caval wall. This technique has used to successfully treat three patients without complications in whom standard techniques failed.

  1. Traumatismos de veia cava inferior Inferior vena cava injuries

    Directory of Open Access Journals (Sweden)

    Cleinaldo de Almeida Costa

    2005-10-01

    Full Text Available OBJETIVO: Avaliar a incidência, o perfil clínico e as estratégias operatórias dos ferimentos de Veia Cava Inferior (VCI. MÉTODOS: Foram analisados retrospectivamente os prontuários de 76 doentes com ferimento de VCI atendidos nos dois prontossocorros de Manaus, no período de janeiro de 1997 a julho de 2002. Mecanismo de lesão, mortalidade, estado hemodinâmico, índice de trauma abdominal penetrante (PATI, achados intra-operatórios e conduta cirúrgica foram estudados. RESULTADOS: Quarenta e nove (65% doentes sofreram lesão por arma branca, 26 (34% por arma de fogo e um por traumatismo abdominal fechado. Quarenta e um (54% doentes sobreviveram. Quase todos chegaram acordados, entretanto 40% estavam hipotensos (pressão arterial sistólica BACKGROUND: Injuries of inferior vena cava (IVC require immediate and definitive action. Our objective is to evaluate the incidence, the clinical findings and the operative approach to IVC injuries. METHODS: We retrospectively studied 76 patients with IVC injuries treated in two Emergency Hospitals of Manaus, AM, Brazil, from January 1997 to July 2002. Mechanisms of injuries, mortality, hemodynamic status, penetrating abdominal trauma index (PATI, intraoperative findings and surgical approach were among assessed data. RESULTS: Fourty-nine patients (65% had stab wounds, 26 (34% gunshot wounds, and one had blunt abdominal trauma. Fourty-one (54% patients survived. Almost all patients entered the emergency room awake, although 40% were hypotensive (systolic blood pressure < 70 mmHg, and the penetrating abdominal trauma index average was above 40. At laparotomy, active retroperitoneal bleeding or an expanding retroperitoneal hematoma were detected in all cases. Caval injury was retro-hepatic in 21 patients, and infrahepatic in the other 55. The prevailing surgical approach was lateral repair in 65 patients. Atrial-caval shunting was tried in six patients, with only three survivals. CONCLUSIONS: We

  2. Animal experimental study of safety for a self-made vena cava stent-filter

    International Nuclear Information System (INIS)

    Objective: To evaluate the safety of a self-made vena cava stent-filter(VCSF)for prevention of pulmonary embolism. Methods: Fusiform unmhrella-like vena cava filter was made of Nitinol wires and stainless steel metal pole, and then ten mongrel dogs were implanted with these self-made filters and divided into 5 groups according to the different periods (2, 3, 4, 5 and 6 w) of filter placement, with 2 dogs in each group. After the VCSFs were placed in inferior vena cava via the right femoral vein approach, the dogs in each group were bred for 2-6 weeks, respectively. The blood flow of inferior vena cava and the position of the filters were inspected by inferior vena-cavography according to the indwelling periods. Finally the metal pole was retrieved via the femoral vein, leaving the VCSF as permanent venousz stent. The feasibility of retrieval and the free state of filter net with the adhering vascular wall were evaluated. Laparotomies were performed to remove the inferior vena cava from the animals for gross and electron microscopic examinations of the inferior vena cava intimal changes of the involved segment. Results: All 10 VCSFs were placed at the right positions of the dogs successfully. Angiography showed patent inferior vena cava without filter thrombosis at 2-6 weeks. There were no tilting and migration of the filter and all the metal poles were successfully retrieved. The superior and inferior extremities of filter nets could be set free with all the filters turning into venous stents. Postmortem displayed retroperitoneal hemorrhage and caval thrombosis. The barbs of the filters penetrated over the caval adventitial coat. Under electron microscope, a thin layer of neointima already covered the braiding net of VCSFs at 2 weeks after the deployment. The tunica intima became slightly thick at 3-4 weeks and with moderate proliferation at 5-6 weeks. Conclusions: The self-made vena cava stent-filter possesses rather long indwelling period according to the

  3. De revolucionarios, partidos y utopismos. Algunas reflexiones en torno a la izquierda mexicana

    Directory of Open Access Journals (Sweden)

    Alejandro González Gutiérrez

    2015-01-01

    Full Text Available En este ensayo se hace un análisis histórico sobre la política, la ideología y la postura de la izquierda comunista mexicana frente al Estado a lo largo del siglo XX. A partir de la experiencia del Partido Comunista Mexicano, el objetivo es arrojar una luz sobre la naturaleza histórica del sistema político mexicano a fin de comprender que la contención de las oposiciones políticas se logró mediante un complejo mecanismo de concesión y coerción. Fue gracias al empleo de ese mecanismo dual que el régimen logró afianzar su proyecto político en detrimento de otras propuestas como fue el caso de la izquierda. Frente a la imposición del neoliberalismo, este ensayo busca abrir espacios de reflexión sobre los retos, límites y alcances de la izquierda en el pasado y el presente.

  4. Research progress in non-permanent vein cava filters

    International Nuclear Information System (INIS)

    Vein cava filter placement has already become one of the most effective measures for preventing pulmonary embolism which is usually secondary to deep vein thrombosis. With the development of research, non-permanent vein cava filter has been widely used. This paper aims to describe the recent progress in the research of non-permanent vein cava filters. (authors)

  5. Inferior vena cava aneurysm. A case report

    International Nuclear Information System (INIS)

    Aneurysmal dilatation of the inferior vena cava can occur in patients with heart disease or, very likely, with congenital weakness of the vascular wall. Chest x-ray discloses a mass in right cardiophrenic angle. The diagnosis can be confirmed by ultrasound, more invasive measures being unnecessary. (Author) 6 refs

  6. Creating a Fontan fenestration in a child with dextrocardia and interrupted inferior vena cava

    Directory of Open Access Journals (Sweden)

    Pradeepkumar Charlagorla

    2016-01-01

    Full Text Available Plastic bronchitis is a rare life-threatening complication of the Fontan operation. Transcatheter Fontan fenestration can ameliorate symptoms by decompressing elevated venous pressures. Transcatheter creation of a fenestration can be technically challenging in cases with complex venous anatomy. We report a case of a 5-year-old boy with heterotaxy, dextrocardia with unbalanced atrioventricular canal (AVC, atrial and visceral situs inversus, left-sided superior vena cava (SVC, and left-sided interrupted inferior vena cava (IVC with azygos continuation. With few modifications to the equipment, a successful Fontan fenestration with stent implantation was performed via transjugular approach. At 2-year follow-up, his symptoms of plastic bronchitis improved significantly.

  7. Referentes internacionales para el giro reformista de la izquierda chilena (1975-1990

    Directory of Open Access Journals (Sweden)

    Marcelo Mella Polanco

    2011-01-01

    Full Text Available El presente artículo analiza el giro reformista de la izquierda chilena durante el régimen autoritario de Pinochet. Para lograrlo, se expone cómo la penetración de ideas provenientes del marxismo analítico homogeneizó un importante sector de intelectuales y expertos opositores de Pinochet, constituyendo, de esta forma, un nuevo mainstream político-académico capaz de renovar los marcos epistémicos de las ciencias sociales y diseñar la transición a la democracia.

  8. Imágenes y representaciones en el periodismo de izquierda en México

    OpenAIRE

    Maricruz Castro Ricalde

    2006-01-01

    El artículo presenta los resultados de una investigación acerca de los imaginarios de la cinematografía dirigida por mujeres, creados por la prensa de izquierda en México durante la década de los ochenta. El modelo de análisis aplicado parte de la propuesta de Michel Pêcheux sobre las formaciones imaginarias, pero tomando en cuenta las condiciones de producción, circulación y recepción del discurso, y no sólo el estudio de los elementos intradiscursivos, ...

  9. Nociones sobre “democracia obrera” y “burocracia sindical” en la izquierda de los años 70. Una comparación entre la izquierda peronista y la izquierda marxista

    Directory of Open Access Journals (Sweden)

    Rafael FARACE

    2016-02-01

    Full Text Available Este trabajo estudia las nociones sobre democracia obrera y burocracia sindical utilizadas por las organizaciones de izquierda durante la década de 1970 a partir del análisis de fuentes documentales como volantes, boletines, prensa y documentos partidarios. Se examinará en particular los casos de dos organizaciones peronistas (Montoneros y Peronismo de Base y una organización marxista (Partido Revolucionario de los Trabajadores – Ejército Revolucionario del Pueblo, estableciéndose comparaciones que den cuenta de la importancia de la adscripción ideológica y la estrategia política como condicionantes de los sentidos otorgados a la burocracia y democracia sindical. Por otra parte, se focalizará el estudio de publicaciones realizadas en el año 1975 debido a que en el marco de las jornadas de lucha obrera desarrolladas ese año se concentraron y profundizaron debates y concepciones al calor de la experiencia inédita de la clase trabajadora.

  10. Percutaneous insertion of the inferior vena cava filter

    International Nuclear Information System (INIS)

    Objective: To evaluate the effect of inferior vena cava filter for prevention of pulmonary embolus (PE) formation. Methods: Twenty-eight cases of deep venous thrombosis (DVT) were treated with insertion of the inferior vena cava filter. Results: The filter was implanted into inferior vena cava below the rena vein. There were no severe complications occurred in the group. Twenty-seven cases were followed up to 2-34 months, and no migration of the filters were found. And no pulmonary embolism were revealed in fifteen cases without pulmonary thromboembolism. Conclusions: The inferior vena cava filter implantation is a safe and effective method to prevent pulmonary thromboembolism

  11. Bilhemia: a fatal complication following percutaneous placement of a transhepatic inferior vena cava catheter in a child

    International Nuclear Information System (INIS)

    A transhepatic central venous catheter was implanted in a 2-year-old child with a history of multiple venous access procedures and superior and inferior vena cava thrombosis. After 2 weeks, inadvertent dislodgement of the catheter was complicated by a biloma. The biloma was percutaneously drained, but a biliary-venous fistula led to a rapidly progressive and fatal bilhemia. We report this case as an infrequent complication of transhepatic catheterization. (orig.)

  12. Bilhemia: a fatal complication following percutaneous placement of a transhepatic inferior vena cava catheter in a child

    Energy Technology Data Exchange (ETDEWEB)

    Sierre, Sergio; Lipsich, Jose; Questa, Horacio [Hospital de Pediatria Prof JP Garrahan, Department of Interventional Radiology, Buenos Aires (Argentina)

    2007-05-15

    A transhepatic central venous catheter was implanted in a 2-year-old child with a history of multiple venous access procedures and superior and inferior vena cava thrombosis. After 2 weeks, inadvertent dislodgement of the catheter was complicated by a biloma. The biloma was percutaneously drained, but a biliary-venous fistula led to a rapidly progressive and fatal bilhemia. We report this case as an infrequent complication of transhepatic catheterization. (orig.)

  13. Militares, democracia e izquierda : Las relaciones entre las fuerzas armadas y el gobierno de Tabaré Vázquez en Uruguay

    OpenAIRE

    Viera, José

    2008-01-01

    Este trabajo analiza las actuales relaciones cívico militares establecidas en el Uruguay a partir de la asunción del gobierno de izquierda de Tabaré Vázquez. Las fuerzas armadas uruguayas consideraron a la izquierda durante décadas como un enemigo interno, y durante el período dictatorial tuvieron como uno de sus objetivos perseguir y combatir a los militantes de dicha fuerza. Luego de 24 años de la reapertura democrática, la izquierda obtiene la presidencia del país mediante un porcentaje de...

  14. De revolucionarios, partidos y utopismos. Algunas reflexiones en torno a la izquierda mexicana

    OpenAIRE

    Alejandro González Gutiérrez

    2015-01-01

    En este ensayo se hace un análisis histórico sobre la política, la ideología y la postura de la izquierda comunista mexicana frente al Estado a lo largo del siglo XX. A partir de la experiencia del Partido Comunista Mexicano, el objetivo es arrojar una luz sobre la naturaleza histórica del sistema político mexicano a fin de comprender que la contención de las oposiciones políticas se logró mediante un complejo mecanismo de concesión y coerción. Fue gracias al empleo de ese mecanismo dual que ...

  15. Pseudo-aneurisma post-traumático de tronco de arteria coronaria izquierda

    Directory of Open Access Journals (Sweden)

    Melina M. Gallo

    2011-08-01

    Full Text Available El pseudo-aneurisma de arteria coronaria es extremadamente raro. Su historia natural es poco conocida y su tratamiento discutido. Se presenta el caso de un paciente con pseudo-aneurisma de tronco de la coronaria izquierda e infarto antero-apical del ventrículo izquierdo cinco años después de un paro cardíaco secundario a un traumatismo no penetrante de tórax. Se consideró entonces que la lesión no era pasible de corrección percutánea o quirúrgica por lo que se optó por tratamiento médico conservador. Una angiografía coronaria por tomografía computarizada multicorte realizada 10 años después del evento inicial mostró ausencia de progresión de la lesión.

  16. Clinical application and advancement of inferior vena cava filter

    International Nuclear Information System (INIS)

    Deep venous thrombosis is a common disorder, with a considerably high incidence and mortality. Inferior vena cava filter provides fruitful means in decrease and prevention of fatal pulmonary embolism. The authors reviewed the history, indications and applications of inferior vena cava filter for different types of deep venous thrombosis, with outlook of future trends. (authors)

  17. [Des]igualdad y anarquismo. Derecha e izquierda en el ideario anarquista

    Directory of Open Access Journals (Sweden)

    Garaventa, Carlos A.

    2011-12-01

    Full Text Available Dentro del ideario anarquista podemos encontrar muchísimas vertientes ideológicas diferentes que nos hacen imposible dar una definición unívoca de esta corriente de pensamiento o, mejor dicho, de vida. Podemos señalar, sin embargo, una característica común a todo ideal ácrata: la oposición al Estado. Es posible señalar también, en un anarquismo puro, el respeto de los tres pilares fundadores de la Revolución Francesa, pero con una dinámica diferente: en lugar de considerarlos aisladamente, para el anarquismo puro, el trinomio debe funcionar como un todo único. Esto da lugar al triángulo virtuoso de libertad, igualdad y fraternidad; sin embargo, no todos los anarquistas defienden íntegramente este triángulo. Hay autores que, por ejemplo, no prestan atención a la igualdad. Siguiendo el esquema de distinción política que da Norberto Bobbio en Derecha e izquierda podemos realizar una diferenciación entre los anarquistas de ambos lados del abanico político. Esta diferencia la marca, según Bobbio, la aspiración, o no, a una sociedad igualitaria. En consecuencia, serán de izquierda aquellos anarquistas que defiendan la igualdad y, por ende, el triángulo virtuoso. Serán anarquistas de derecha, en cambio, aquellos que deseen la abolición del Estado pero haciendo caso omiso de si la sociedad se vuelve o no igualitaria.

  18. Mesoaortic entrapment of a left inferior vena cava

    International Nuclear Information System (INIS)

    A persistent left inferior vena cava (IVC) is a rare anomaly, with a reported incidence of only 0.2-0.5%. When present, it courses between the superior mesenteric artery and the aorta to continue as the right IVC, similar to the course of a left renal vein (LRV). This anomaly is usually asymptomatic, but there may be vague abdominal complaints if the IVC is compressed in the mesoaortic angle. Although symptomatic compression of the LRV (anterior nutcracker syndrome) is well recognized, there has been only one report in the literature of a similar compression of a persistent left IVC. Because of its rarity, this anomaly may be missed or mistaken for other conditions on imaging. An accurate diagnosis is crucial as the presence of this anomaly may have implications for surgical treatment of aortic lesions or placement of an IVC filter. Magnetic resonance angiography and, more recently, multidetector computed tomography scan, can provide an exquisite three-dimensional demonstration of vascular abnormalities

  19. Computational Modeling of Blood Flow in the TrapEase Inferior Vena Cava Filter

    Energy Technology Data Exchange (ETDEWEB)

    Singer, M A; Henshaw, W D; Wang, S L

    2008-02-04

    To evaluate the flow hemodynamics of the TrapEase vena cava filter using three dimensional computational fluid dynamics, including simulated thrombi of multiple shapes, sizes, and trapping positions. The study was performed to identify potential areas of recirculation and stagnation and areas in which trapped thrombi may influence intrafilter thrombosis. Computer models of the TrapEase filter, thrombi (volumes ranging from 0.25mL to 2mL, 3 different shapes), and a 23mm diameter cava were constructed. The hemodynamics of steady-state flow at Reynolds number 600 was examined for the unoccluded and partially occluded filter. Axial velocity contours and wall shear stresses were computed. Flow in the unoccluded TrapEase filter experienced minimal disruption, except near the superior and inferior tips where low velocity flow was observed. For spherical thrombi in the superior trapping position, stagnant and recirculating flow was observed downstream of the thrombus; the volume of stagnant flow and the peak wall shear stress increased monotonically with thrombus volume. For inferiorly trapped spherical thrombi, marked disruption to the flow was observed along the cava wall ipsilateral to the thrombus and in the interior of the filter. Spherically shaped thrombus produced a lower peak wall shear stress than conically shaped thrombus and a larger peak stress than ellipsoidal thrombus. We have designed and constructed a computer model of the flow hemodynamics of the TrapEase IVC filter with varying shapes, sizes, and positions of thrombi. The computer model offers several advantages over in vitro techniques including: improved resolution, ease of evaluating different thrombus sizes and shapes, and easy adaptation for new filter designs and flow parameters. Results from the model also support a previously reported finding from photochromic experiments that suggest the inferior trapping position of the TrapEase IVC filter leads to an intra-filter region of recirculating

  20. Injuries of the inferior vena cava.

    Science.gov (United States)

    Burch, J M; Feliciano, D V; Mattox, K L; Edelman, M

    1988-12-01

    Beginning in 1946, 577 patients with inferior vena cava injuries were managed at a single institution. After decreasing from 37 to 30 percent, the mortality rate showed a distinct increase in the last 7 years studied. This increase was related to an increasing percentage of patients who arrived in the emergency center in severe shock and required resuscitative thoracotomy. In-hospital care advances have not kept pace with improvements in prehospital care. Although venous complications have not been infrequent, morbidity has not been a significant long-term problem. Fatal pulmonary embolism occurred and was a special problem for patients over the age of 50. More basic research is needed to expedite diagnosis and vascular control in addition to understanding and treating the severe metabolic problems of patients dying from shock and hemorrhage. PMID:3202271

  1. Neoplasms of the inferior vena cava - pictorial essay

    International Nuclear Information System (INIS)

    This pictorial essay reviews common and rare neoplasms affecting the inferior vena cava (IVC, Table 1), with a particular emphasis on the clinical implications and the role and efficacy of the various imaging techniques. (author)

  2. Imágenes y representaciones en el periodismo de izquierda en México

    Directory of Open Access Journals (Sweden)

    Maricruz Castro Ricalde

    2006-01-01

    Full Text Available El artículo presenta los resultados de una investigación acerca de los imaginarios de la cinematografía dirigida por mujeres, creados por la prensa de izquierda en México durante la década de los ochenta. El modelo de análisis aplicado parte de la propuesta de Michel Pêcheux sobre las formaciones imaginarias, pero tomando en cuenta las condiciones de producción, circulación y recepción del discurso, y no sólo el estudio de los elementos intradiscursivos, de manera acorde con los presupuestos de la Escuela Francesa del Discurso. La de los ochenta fue una época en la cual el movimiento feminista en México parecía haberse consolidado y, como consecuencia, podría suponerse el interés de los medios de comunicación hacia los problemas de género, el quehacer femenino y sus ámbitos de acción, especialmente en aquellos medios que acababan de surgir como alternativa a las tendencias oficiales.

  3. Infancia, dictadura y resistencia: hijos e hijas de la izquierda chilena (1973-1989

    Directory of Open Access Journals (Sweden)

    Patricia Eliana Castillo-Gallardo, Chile

    2015-07-01

    Full Text Available (Descriptivo En este artículo de investigación recuperamos la voz de los hijos-niños e hijas-niñas de la gente militante de la izquierda de Chile, a partir del análisis de sus producciones simbólicas y registros de la vida cotidiana tales como cartas, dibujos, objetos realizados entre 1973 y 1989, y entrevistas registradas en documentales de la época que se encuentran actualmente en el Museo de la Memoria y los Derechos Humanos de Santiago de Chile, analizadas desde la perspectiva de los nuevos estudios de la infancia. Reflexionamos respecto al modo en que los niños y niñas elaboran su juicio y sentido de la realidad y construyen un sentido ético que dialoga con la herencia intergeneracional, pero la excede, reflejando su activa participación en la construcción de una comunidad afectiva que trasciende los vínculos consanguíneos.

  4. Troubleshooting OptEase inferior vena cava filter retrieval.

    Science.gov (United States)

    Nakashima, Masaya; Kobayashi, Hideaki; Kobayashi, Masayoshi

    2016-01-01

    For treatment of deep vein thrombosis and prevention of pulmonary thromboembolism, a retrievable inferior vena cava filter is commonly utilized as an effective bridge to anticoagulation. However, we have experienced difficulties in retrieving inferior vena cava filters. Endovascular retrieval assisted by disposable biopsy forceps is an appropriate approach because it provides a less-invasive low-cost way to remove a migrated filter. We suggest this troubleshooting technique to deal with filter hook migration into the caval wall. PMID:24828829

  5. Syndrome of the superior caval vene - clinical findings, etiology and case reports

    Energy Technology Data Exchange (ETDEWEB)

    Serdarevic, M.; Loehr, E.; Reidemeister, J.C.

    1984-06-01

    The so-called superior-Cava Syndrome is caused by obstructions by centrally localized tumors by thrombosis or by inflammations of the mediastinum. In cases of tumorous infiltration a graft can be inserted. The different phenomena of thrombosis caused by nutritial catheters and pace makers are of clinical importance. Acute thrombosis of the brachio-cervical veins and the Vena Cava can be treated successfully by means of thrombolysis. Besides CT bilateral brachial phlebography communicates optimal information concerning localization of vascular obstruction and collateral circuits.

  6. Analysing Temporally Annotated Corpora with CAVaT

    CERN Document Server

    Derczynski, Leon

    2012-01-01

    We present CAVaT, a tool that performs Corpus Analysis and Validation for TimeML. CAVaT is an open source, modular checking utility for statistical analysis of features specific to temporally-annotated natural language corpora. It provides reporting, highlights salient links between a variety of general and time-specific linguistic features, and also validates a temporal annotation to ensure that it is logically consistent and sufficiently annotated. Uniquely, CAVaT provides analysis specific to TimeML-annotated temporal information. TimeML is a standard for annotating temporal information in natural language text. In this paper, we present the reporting part of CAVaT, and then its error-checking ability, including the workings of several novel TimeML document verification methods. This is followed by the execution of some example tasks using the tool to show relations between times, events, signals and links. We also demonstrate inconsistencies in a TimeML corpus (TimeBank) that have been detected with CAVaT...

  7. Trimodality Therapy for an Advanced Thymic Carcinoma With Both Aorta and Vena Cava Invasion.

    Science.gov (United States)

    Momozane, Tohru; Inoue, Masayoshi; Shintani, Yasushi; Funaki, Soichiro; Kawamura, Tomohiro; Minami, Masato; Shirakawa, Yukitoshi; Kuratani, Toru; Sawa, Yoshiki; Okumura, Meinoshin

    2016-08-01

    A case of locally advanced thymic carcinoma that was successfully resected with the great vessels after chemoradiation therapy is reported. A 57-year-old man with Masaoka stage III thymic carcinoma received two cycles of cisplatin/docetaxel and 60 Gy irradiation. The response was stable disease with 19% size reduction, and a radical resection with the ascending aorta and superior vena cava with the patient under circulatory arrest with the use of cardiopulmonary bypass was performed. The postoperative course was uneventful, and the patient has been free of disease for 28 months. Trimodality therapy with use of a cardiovascular surgical procedure might be a valuable option in locally advanced thymic carcinoma. PMID:27449450

  8. La España democrática y la primera revista de izquierdas: 'La Calle' (1978-1982

    Directory of Open Access Journals (Sweden)

    Lic. Vanessa Sáiz Echezarreta

    1999-01-01

    Full Text Available En plena transición de la dictadura de Franco al régimen democrático en España, pudieron salir a la luz pública las revistas de ideología de izquierdas, revistas que llevaban casi cuatro décadas en el exilio o la clandestinidad. Una de las primeras en aparecer fue 'La Calle', subtitulada "La primera a la izquierda", en la que se tratan temas prohibidos como las nacionalidades, el terrorismo del País Vasco, etc. En ella colaboraron jóvenes como Alfaya, Raúl del Pozo, Vázquez Montalbán y otros periodistas que todavía hoy crean opinión pública en prensa, radio y televisión en España. Su desaparición coincidiendo con la llegada del Partido Socialista al poder, el año 1982, es un hito de difícil explicación y que intentan argumentar los autores del artículo.

  9. Leiomiossarcoma da veia cava inferior: relato de caso

    Directory of Open Access Journals (Sweden)

    Rafael Lemos Nascif

    2014-12-01

    Full Text Available Relatamos um caso de paciente do sexo feminino, 48 anos, com quadro clínico de dor abdominal de moderada intensidade e abaulamento do abdome. Ao exame físico constatou-se massa abdominal palpável. A tomografia computadorizada mostrou volumosa massa retroperitoneal, com realce heterogêneo e íntima relação com a veia cava inferior. Realizou-se ressecção em bloco da massa e do segmento invadido da veia cava. A histologia revelou leiomiossarcoma.

  10. Liver trauma and transection of the inferior vena cava

    International Nuclear Information System (INIS)

    CT of a child with severe liver trauma due to a seat belt injury demonstrated avulsion of a portion of the lateral segment of the left lobe of the liver. The location of nondependent extravasated contrast material aided in identification of the visceral fracture site (the sentinel contrast sign). Associated transection of the inferior vena cava was evidenced by hypoatenuating zones adjacent to all the major hepatic veins and vena cava (hepatic perivenous tracking). Recognition of these two signs is important so that the radiologist can help the surgeon select the optimal operative approach. (orig.)

  11. Bilateral inferior vena cava filter insertion in a patient with duplication of the infrarenal vena cava.

    LENUS (Irish Health Repository)

    Leong, S

    2010-06-19

    BACKGROUND: Inferior vena cava (IVC) filter insertion is a commonly performed procedure for indications such as recurrent pulmonary emboli or contraindication to anticoagulation. Symptomatic duplication of the IVC is exceedingly rare with only a handful of cases being described in the literature. AIM: We report an unusual case of a patient with symptomatic duplication of the IVC. RESULT: A 53-year-old woman presented at our hospital for resection of a cerebral metastasis from a non-small cell lung cancer following a recent diagnosis of bilateral lower limb deep venous thrombosis. This required perioperative reversal of anticoagulation and IVC filter insertion. Conventional venography performed during filter insertion documented the existence of a duplicated IVC. CONCLUSION: We present a case of a symptomatic duplication of the IVC requiring filter insertion. We review the developmental anatomy of the IVC along with the diagnostic findings and management strategies available.

  12. (Mis)placed central venous catheter in the left superior intercostal vein

    International Nuclear Information System (INIS)

    Chest X-ray is routinely performed to check the position of the central venous catheter (CVC) inserted through the internal jugular or subclavian vein, while the further evaluation of CVC malfunction is usually performed by contrast venography. In patients with superior vena cava obstruction, the tip of the catheter is often seen in collateral mediastinal venous pathways, rather than in the superior vena cava. In such cases detailed knowledge of thoracic vessel anatomy is necessary to identify the exact location of the catheter. We report a case of 32-year-old female patient with relapsing mediastinal lymphoma and previous superior vena cava obstruction with collateral azygos-hemiazygos venous pathways. The patient had CVC inserted through the left subclavian vein and its position was detected by CT to be in the dilated left superior intercostal vein and accessory hemiazygos vein. Considering that dilated accessory hemiazygos vein can tolerate infusion, the CVC was left in place and the patient had no complaints related to CVC (mal)position. Furthermore, we present anatomical and radiological observations on the azygos-hemiazygos venous system with the special emphasis on the left superior intercostal vein. Non-contrast CT scans can be a valuable imaging tool in the detection of the CVC position, especially in patients with renal insufficiency and contrast media hypersensitivity

  13. Duodenal Perforation Caused by an Inferior Vena Cava Filter

    OpenAIRE

    Bae, Mi Ju; Chung, Sung Woon; Lee, Chung Won; Kim, Sangpil; Song, Seunghwan

    2012-01-01

    The inferior vena cava (IVC) filter is known as an effective and safe method for preventing fatal pulmonary thromboembolism in patients with deep vein thrombosis. Usually, the remaining IVC filters are asymptomatic and do not cause clinical problems. We report a case of duodenal perforation caused by a remaining IVC filter.

  14. Duodenal perforation caused by an inferior vena cava filter.

    Science.gov (United States)

    Bae, Mi Ju; Chung, Sung Woon; Lee, Chung Won; Kim, Sangpil; Song, Seunghwan

    2012-02-01

    The inferior vena cava (IVC) filter is known as an effective and safe method for preventing fatal pulmonary thromboembolism in patients with deep vein thrombosis. Usually, the remaining IVC filters are asymptomatic and do not cause clinical problems. We report a case of duodenal perforation caused by a remaining IVC filter. PMID:22363914

  15. Hepatic and postrenal segment anomalies of inferior vena cava

    Energy Technology Data Exchange (ETDEWEB)

    Choe, Yeon Hyeon; Park, Jae Hyung; Yeon, Kyung Mo; Han, Man Chung [Seoul National University College of Medicine, Seoul (Korea, Republic of)

    1986-06-15

    Postrenal segment anomalies of inferior vena cava such as bilateral inferior vena cava and left-sided inferior vena cava can simulate lymphadenopathy on CT scan and these anomalous veins need consideration in retroperitoneal operations such as procedures for prevention of venous embolism, splenorenal shunt operation and aortic prosthetic replacement. Retrocaval ureter is a rare cause of obstructive uropathy or medical deviation of ureter. We analyzed 16 cases of postrenal segment anomalies diagnosed by CT, vena cavography, retrograde pyelography and ultrasonography including six rare positional anomalies at hepatic segment of inferior vena cava diagnosed by cardiac angiography. The results were as follows. 1. Postrenal segment anomalies were 6 cases of bilateral IVC, 8 cases of left-sided IVC and 2 cases of retrocaval ureters. On CT scan, 3 cases of bilateral IVC and 4 cases of left-sided IVC were accompanied by malignant tumors, but caval veins could be discriminated from enlarged nodes because of continuous tubular nature of vein on consecutive sections with homogeneous strong enhancement. Two cases of retrocaval ureters showed hydroureteronephrosis due to ureteral compression by IVC. 2. Hepatic segment anomalies were 6 cases. Five cases of IVC on left side of vertebra crossed midline at live to enter right-sided right atrium and one case of IVC on right side crossed midline to enter left-sided right atrium. Four cases of complex cardiac anomalies, 4 cases of annapolis and 2 cases of situs ambiguous were associated with these anomalies.

  16. Acetylcholinesterase and Butyrylcholinesterase Inhibitory Compounds from Corydalis cava (Fumariaceae)

    Czech Academy of Sciences Publication Activity Database

    Chlebek, J.; Macáková, K.; Cahlíková, L.; Kurfürst, Milan; Kuneš, J.; Opletal, J.

    2011-01-01

    Roč. 6, č. 5 (2011), s. 607-610. ISSN 1934-578X Institutional research plan: CEZ:AV0Z40720504 Keywords : corydalis cava * fumariaceae * alzheimer ´s disease Subject RIV: CF - Physical ; Theoretical Chemistry Impact factor: 1.242, year: 2011

  17. Persistent Left Superior Vena Cava, The View of a Rare Case

    Directory of Open Access Journals (Sweden)

    H.Volkan Kara

    2013-10-01

    Full Text Available The glenohumeral joint is the most commonly dislocated joint in the human body. Anterior dislocatin is the most common type and posterior dislocations account for <1% of shoulder dislocations.  A 68-yearold woman was brought to the emergency department by ambulance  with shoulder pain following a fall from stairs. On local physical examination, there was severe pain on the left proximal humerus. The left arm was in internal rotation in the adducted position. Active and passive movements of the left shoulder were painful and limited. The neurovascular examination of the left upper extremity revealed no deficit. Radiographs of her left shoulder were performed and no significant pathology was identified in the left shoulder anteroposterior (AP X-ray (Figure 1. Axillary radiography could not be performed because of painful arm movements. Therefore, CT was performed to clarify any existing shoulder pathology (Figure 2. Closed reduction under conscious sedation was performed with longitudinal and lateral traction on the arm to protect the humeral head. Control CT was performed and this revealed that reduction had improved the shoulder (Figure 3. She was then treated with an arm sling and discharged with an outpatient orthopaedic control visit.

  18. Persistent Left Superior Vena Cava, The View of a Rare Case

    OpenAIRE

    H.Volkan Kara

    2013-01-01

    The glenohumeral joint is the most commonly dislocated joint in the human body. Anterior dislocatin is the most common type and posterior dislocations account for <1% of shoulder dislocations.  A 68-yearold woman was brought to the emergency department by ambulance  with shoulder pain following a fall from stairs. On local physical examination, there was severe pain on the left proximal humerus. The left arm was in internal rotation in the adducted position. Active and passive mo...

  19. Superior vena thrombosis with peripartum dilated cardiomyopathy

    International Nuclear Information System (INIS)

    A 30 years multiparous female with history of emergency caesarean section 10 days back was referred to us with cough, severe breathlessness at rest, orthopnea with pain in neck and arms. Clinical examination revealed signs of heart failure. Echocardiography showed ejection fraction of 15%, with no right ventricular strain. A diagnosis of peripartum cardiomyopathy was made. Doppler ultrasound of neck veins showed bilateral internal jugular vein thrombosis. Subsequent multislice CT examination showed thrombosis of superior vena cava and both internal jugular veins (with collateral formation) and pulmonary embolism. There were no mediastinal abnormalities on the CT scan. Her thrombophilia screen and CT scan brain was normal. She was managed in collaboration with cardiologist. Following treatment with subcutaneous enoxaparin therapy and warfarin her symptoms of upper limb pain improved. She responded very well to medical therapy for heart failure with marked improvement of NYHA functional class. (author)

  20. La renta básica universal en Cataluña. ¿Una propuesta de izquierdas?

    OpenAIRE

    Carpio Aznar, Marina

    2015-01-01

    Con alrededor de un 20% de la población catalana por debajo del umbral de la pobreza, hay partidos que defienden la renta mínima de inserción vigente; otros, en cambio, apuestan por una renta garantizada de ciudadanía. Pero, ¿hay algún partido que contemple la implementación de la renta básica universal en Cataluña? A priori, podría asociarse esta propuesta a una ideología de izquierdas, debido a su carácter plenamente igualitario. Esta es, de hecho, la principal hipótesis del presente estudi...

  1. Management of the Thrombosed Filter-Bearing Inferior Vena Cava

    OpenAIRE

    Sildiroglu, Onur; Ozer, Harun; Turba, Ulku Cenk

    2012-01-01

    Inferior vena cava (IVC) filter thrombosis is a complex problem. Thrombus within an IVC filter may range from an asymptomatic small thrombus to critical IVC occlusion that affects both lower extremities. The published experience of IVC thrombosis management in relation to filters is either anecdotal or limited to a small group of patients; however, endovascular treatment methods appear to be safe and effective in patients with IVC thrombosis. This review focuses on filter-related IVC thrombos...

  2. Unusual variant of infrarenal duplication of inferior vena cava

    Directory of Open Access Journals (Sweden)

    Ranjan Kumar Sahoo

    2016-01-01

    Full Text Available Infrarenal inferior vena cava (IVC duplication is a rare anomaly. Most of the cases are asymptomatic and are detected incidentally. Prior knowledge of the anomaly is essential for safe procedure by intervention radiologist, retroperitoneal operation, and multi-visceral recovery operation from deceased donor by surgeon. We report a case of infrarenal IVC duplication detected incidentally during contrast-enhanced computed tomography examination of abdomen of a patient presenting with viral hepatitis and mild obstructive jaundice.

  3. Asymptomatic Duodenal Perforation from an Inferior Vena Cava Filter

    OpenAIRE

    Park, Jean R.; Oza, Veeral M; Krishna, Somashekar G

    2014-01-01

    Recent exponential increase in inferior vena cava (IVC) filter placements has led to a higher rate of filter complications. A 46-year-old man with a past history of IVC filter placement for bilateral deep vein thrombosis presented with lower abdominal pain. Imaging studies demonstrated IVC filter strut penetrations into multiple structures. Upper endoscopy confirmed an uncomplicated single IVC filter strut penetration into the duodenal wall. The abdominal pain was determined to be unrelated t...

  4. Modeling Flow Past a Tilted Vena Cava Filter

    International Nuclear Information System (INIS)

    Inferior vena cava filters are medical devices used to prevent pulmonary embolism (PE) from deep vein thrombosis. In particular, retrievable filters are well-suited for patients who are unresponsive to anticoagulation therapy and whose risk of PE decreased with time. The goal of this work is to use computational fluid dynamics to evaluate the flow past an unoccluded and partially occluded Celect inferior vena cava filter. In particular, the hemodynamic response to thrombus volume and filter tilt is examined, and the results are compared with flow conditions that are known to be thrombogenic. A computer model of the filter inside a model vena cava is constructed using high resolution digital photographs and methods of computer aided design. The models are parameterized using the Overture software framework, and a collection of overlapping grids is constructed to discretize the flow domain. The incompressible Navier-Stokes equations are solved, and the characteristics of the flow (i.e., velocity contours and wall shear stresses) are computed. The volume of stagnant and recirculating flow increases with thrombus volume. In addition, as the filter increases tilt, the cava wall adjacent to the tilted filter is subjected to low velocity flow that gives rise to regions of low wall shear stress. The results demonstrate the ease of IVC filter modeling with the Overture software framework. Flow conditions caused by the tilted Celect filter may elevate the risk of intrafilter thrombosis and facilitate vascular remodeling. This latter condition also increases the risk of penetration and potential incorporation of the hook of the filter into the vena caval wall, thereby complicating filter retrieval. Consequently, severe tilt at the time of filter deployment may warrant early clinical intervention.

  5. Modeling Flow Past a Tilted Vena Cava Filter

    Energy Technology Data Exchange (ETDEWEB)

    Singer, M A; Wang, S L

    2009-06-29

    Inferior vena cava filters are medical devices used to prevent pulmonary embolism (PE) from deep vein thrombosis. In particular, retrievable filters are well-suited for patients who are unresponsive to anticoagulation therapy and whose risk of PE decreased with time. The goal of this work is to use computational fluid dynamics to evaluate the flow past an unoccluded and partially occluded Celect inferior vena cava filter. In particular, the hemodynamic response to thrombus volume and filter tilt is examined, and the results are compared with flow conditions that are known to be thrombogenic. A computer model of the filter inside a model vena cava is constructed using high resolution digital photographs and methods of computer aided design. The models are parameterized using the Overture software framework, and a collection of overlapping grids is constructed to discretize the flow domain. The incompressible Navier-Stokes equations are solved, and the characteristics of the flow (i.e., velocity contours and wall shear stresses) are computed. The volume of stagnant and recirculating flow increases with thrombus volume. In addition, as the filter increases tilt, the cava wall adjacent to the tilted filter is subjected to low velocity flow that gives rise to regions of low wall shear stress. The results demonstrate the ease of IVC filter modeling with the Overture software framework. Flow conditions caused by the tilted Celect filter may elevate the risk of intrafilter thrombosis and facilitate vascular remodeling. This latter condition also increases the risk of penetration and potential incorporation of the hook of the filter into the vena caval wall, thereby complicating filter retrieval. Consequently, severe tilt at the time of filter deployment may warrant early clinical intervention.

  6. Double vena cava inferior:A report of three cases

    Institute of Scientific and Technical Information of China (English)

    Isin Ureyen; Zeynep Kestel; Elif Gulsah Sahin; Alper Karalok; Taner Turan; Nurettin Boran; Gokhan Tulunay

    2013-01-01

    Congenital anomalies of the vena cava inferior (VCI) develop as a result of the persistence of the embryonic venous system. The majority of cases is clinically silent and is diagnosed in routine dissection studies, in retroperitoneal surgeries, or through imaging for other reasons. We report three cases with a double VCI. We outline our operative policy, summarize the embryological development of the VCI and present these cases as a reminder of this rare anatomical variation.

  7. Detection by means of CT of inferior vena cava filters

    International Nuclear Information System (INIS)

    Vena cava filters are an excellent tool for the prevention of pulmonary embolism (PE) in patients with deep vein thrombosis (DVT) of the lower limbs. However, these devices are not entirely free of complications as thrombi can develop inside them, threatening to occlude them completely. The objective of this report is to study the incidence of thrombosis in vena cava filters, as well as their impact on prognosis. We also mention the importance of CT as an imaging technique in the study of this complication. We present 30 patients in whom different filters were implanted and their prospective follow-up by means of CT over a mean follow-up period of 36 months. Chi-square analysis was used to determine whether there was a significant relationship among the complications encountered (p<0,05), and their course over time was studied by means of Kaplan-Meyer curves. Five cases (16%) of complete thrombosis of the filter were observed among patients in whom the Gunther model had been implanted, yielding an index of probability of complete permeability of the inferior vena cava at 13 months of 82%. Thrombi of different degrees (between 5% and 60%) were also observed inside the filter in ten patients (33%) with Gunther, Simon-Nitional and LGM models. Filter thrombosis was not significantly associated with the onset of recurrent PE or of venous disorders involving lower limbs, the relationship between PE and preimplantation presence of inferior vena cava thrombosis was significant (p<0.01). It was also observed that post implantation anti coagulation did not significantly prevent later onset of filter thrombosis. (Author)

  8. Inferior vena cava leiomyosarcoma confirmed by catheter suction biopsy during digital subtraction angiography

    OpenAIRE

    Wei, Ning; Xu, Xiang-Dong; Xu, Hao; ZU, MAO-HENG

    2014-01-01

    Leiomyosarcoma of vascular origin is a rare disease and most cases arise in the inferior vena cava. Inferior vena cava leiomyosarcoma (IVCLMS) usually presents in females in their sixth decade of life. The clinical symptoms are often non-specific and the diagnosis is often delayed. Current imaging techniques can accurately differentiate inferior vena cava neoplasms from other non-neoplastic lesions. However, definitive diagnosis of IVCLMS needs histologic evidence. We report a case of IVCLMS ...

  9. Upper terminal of the inferior vena cava and development of the heart atriums: a study using human embryos

    Science.gov (United States)

    Hwang, Si Eun; Rodríguez-Vázquez, José Francisco; Murakami, Gen; Cho, Baik Hwan

    2014-01-01

    In the embryonic heart, the primitive atrium is considered to receive the bilateral sinus horns including the upper terminal of the inferior vena cava (IVC). To reveal topographical anatomy of the embryonic venous pole of the heart, we examined horizontal serial paraffin sections of 15 human embryos with crown-rump length 9-31 mm, corresponding to a gestational age of 6-7 weeks or Carnegie stage 14-16. The IVC was often fixed to the developing right pulmonary vein by a mesentery-like fibrous tissue. Rather than the terminal portion of the future superior vena cava, the IVC contributed to form a right-sided atrial lumen at the stage. The sinus venosus or its left horn communicated with the IVC in earlier specimens, but in later specimens, the left atrium extended caudally to separate the sinus and IVC. In contrast, the right atrium consistently extended far caudally, even below the sinus horn, along the IVC. A small (or large) attachment between the left (or right) atrium and IVC in adult hearts seemed to be derived from the left (or right) sinus valve. This hypothesis did not contradict with the incorporation theory of the sinus valves into the atrial wall. Variations in topographical anatomy around the IVC, especially of the sinus valves, might not always depend on the stages but partly in individual differences. PMID:25548721

  10. Origen anómalo de la coronaria izquierda en la arteria pulmonar: resultados de la cirugía correctora

    Directory of Open Access Journals (Sweden)

    Andrés J. Schlichter

    2010-01-01

    Full Text Available IntroducciónEl origen anómalo de la arteria coronaria izquierda en la arteria pulmonar es una cardiopatía congénita rara que produce isquemia miocárdica con disfunción ventricular izquierda e insuficiencia mitral de grado variable. Las técnicas actuales han modificado la historia natural de esta enfermedad mediante el restablecimiento de un sistema de doble irrigación coronaria.ObjetivosEvaluar la experiencia institucional en la corrección quirúrgica del origen anómalo de la coronaria izquierda en la arteria pulmonar.Material y métodosEntre febrero de 2000 y mayo de 2008 fueron operados 13 pacientes con este diagnóstico. Seis eran menores de 1 año; mediana: 2,5 años; rango: 45 días a 21 años. Antes de la cirugía, el 61% de los pacientes presentaban insuficiencia cardíaca, el 69% signos de infarto y el 84% cardiomegalia moderada a grave. La fracción de acortamiento promedio era del 26,07% y existía insuficiencia mitral moderada a grave en el 46% de los casos. El diagnóstico se confirmó por cateterismo en 11 pacientes.En un paciente se realizó cirugía de Takeuchi y en los 12 restantes se efectuó el reimplante de la coronaria izquierda en la aorta. En un paciente se realizó plástica mitral. Seis recibieron perfusión y cardioplejía de la coronaria anómala por la arteria pulmonar.ResultadosLa mortalidad al presente, con un seguimiento promedio de 74,76 meses, es del 0%. Ningún paciente presentaba insuficiencia cardíaca al alta. En 9 de los 11 pacientes con cardiomegalia, ésta se redujo. La fracción de acortamiento promedio posoperatoria fue del 39,92%. La insuficiencia mitral disminuyó en todos los que la presentaban, excepto en uno. Ninguno presentó insuficiencia grave en el posoperatorio alejado.ConclusionesLos resultados de la cirugía correctora del origen anómalo de la coronaria izquierda en la arteria pulmonar son excelentes en todos los grupos etarios, con mejoría significativa de la función mioc

  11. The Media Politics of Latin America’s Leftist Governments La política de medios de los gobiernos de izquierda en América Latina

    Directory of Open Access Journals (Sweden)

    Philip Kitzberger

    2012-01-01

    Full Text Available Does Latin America’s left turn matter in media politics? Has ideology any impact on governments’ practices and policies regarding media and journalistic institutions? This essay focuses on the existence of a specific kind of media activism on the part of leftist governments in Latin America. It does so by assessing discourses on the media, direct-communication practices, and media regulation policies. While showing that the current binary distinctions stressing the existence of two lefts – “populist” and “nonpopulist” – obscure important commonalities and continuities, the author demonstrates that institutional and structural constraints account for the differences among the various leftist governments in Latin America. In sum, the paper challenges the prevailing neglect of ideology as a relevant factor in explaining developments in government–media relationships in the region.¿Ha sido relevante el giro a la izquierda en América Latina para la política de medios? ¿Tuvo impacto la ideología en las prácticas y políticas gubernamentales relativas a los medios y las instituciones políticas? Por medio de una evaluación de los discursos sobre los medios, de las prácticas de comunicación directa y de las políticas de regulación del sector mediático por parte de los recientes gobiernos de izquierda en América Latina, el presente ensayo focaliza en la existencia de un activismo mediático de los gobiernos de izquierda en la región. En tanto muestra cómo las distinciones binarias corrientes que afirman la existencia de dos izquierdas – populista y no-populista – oscurece importantes rasgos comunes y continuidades, el autor plantea que las restricciones institucionales y estructurales dan cuenta de las diferencias entre los varios gobiernos de izquierda en América Latina. En suma, el artículo desafía la prevaleciente subestimación del factor ideológico en las explicaciones de las relaciones entre medios y

  12. Vena cava agenesi kan vise sig som inkarcereret lyskebrok

    DEFF Research Database (Denmark)

    Safir-Hansen, Kristina; Achiam, Michael Patrick

    The case describes a 45-year-old man with a rare finding of vena cava agenesia presented as incarcerated groin hernia. From childhood the patient had developed dilatation of subcutaneous veins with establishment of aneurismal dilatation in the lower right side of the abdomen and groin. The patient...... was submitted with severe abdominal pain in the lower right side. The case describes the difficulties of an initially incorrect radiological diagnosis of incarcerated groin hernia and the discrepancy of the clinical findings. The case stresses the importance of a thorough evaluation of each patient....

  13. Retrievable Inferior Vena Cava Filters for Venous Thromboembolism

    International Nuclear Information System (INIS)

    Inferior vena cava (IVC) filters are used as an alternative to anticoagulants for prevention of fatal pulmonary embolism (PE) in venous thromboembolic disorders. Retrievable IVC filters have become an increasingly attractive option due to the long-term risks of permanent filter placement. These devices are shown to be technically feasible in insertion and retrieval percutaneously while providing protection from PE. Nevertheless, there are complications and failed retrievals with these retrievable filters. The aim of the paper is to review the retrievable filters and their efficacy, safety, and retrievability

  14. Inferior Vena Cava Duplication: Incidental Case in a Young Woman.

    Science.gov (United States)

    Coco, Danilo; Cecchini, Sara; Leanza, Silvana; Viola, Massimo; Ricci, Stefano; Campagnacci, Roberto

    2016-01-01

    A case of a double inferior vena cava (IVC) with retroaortic left renal vein, azygos continuation of the IVC, and presence of the hepatic portion of the IVC drained into the right renal vein is reported and the embryologic, clinical, and radiological significance is discussed. The diagnosis is suggested by multidetector computed tomography (MDCT), which reveals the aberrant vascular structures. Awareness of different congenital anomalies of IVC is necessary for radiologists to avoid diagnostic pitfalls and they should be remembered because they can influence several surgical interventions and endovascular procedures. PMID:27217964

  15. Radiological evaluation of inferior vena cava obstruction: pictorial essay

    International Nuclear Information System (INIS)

    The clinical diagnosis of inferior vena cava (IVC) obstruction is often difficult, since patients may present with a multitude of signs and symptoms. The clinical manifestations depend on several factors: the underlying cause, the level of obstruction, the adequacy of collateral circulation, the presence of intercurrent disease, and the organ system involved. Although the most common clinical manifestations are deep venous thrombosis in the legs, abdominal pain, low back pain, loin pain and hematuria, patients may present with unusual and varied pathologic conditions. IVC obstruction may resemble or be associated with such conditions as congestive cardiac failure, cirrhosis of the liver or renal disease. (author)

  16. Estudi i millora d'una planta productora de cava

    OpenAIRE

    Boza Macías, Marta

    2008-01-01

    El present projecte té com a objectiu principal l’automatització d’una part del procés productiu del cava. Concretament, la millora que es desitja realitzar consisteix en la instal·lació d’un autòmat programable que controli l’emplenat i buidat dels dipòsits d’emmagatzematge. Aquest control es realitzarà utilitzant sensors capacitius, encarregats de controlar els nivells, tant alt com baix, dels citats dipòsits. A part de controlar en tot moment l’estat en que es troben les ...

  17. Ausência de veia cava inferior: relato de caso Absence of the inferior vena cava: case report

    Directory of Open Access Journals (Sweden)

    Elton Correia Alves

    2010-12-01

    Full Text Available A ausência congênita de veia cava inferior é achado incomum e ocasional durante exames complementares ou cirurgias do abdome. Em razão de a maioria dos pacientes sem outras malformações serem assintomáticos, há dificuldade em estimar a prevalência dessas anomalias. O objetivo deste trabalho foi relatar o caso de um paciente de 28 anos, sexo masculino, referido para radiografia de tórax devido a quadro de febre alta (39ºC não-responsiva à medicação. Radiografia de tórax sugeriu dilatação de veia ázigos. Em inquérito dirigido para sintomas cardiovasculares, referiu dor torácica (durante atividade física e em repouso e dispneia ocasionais durante o sono associada ao período em que intensificou a prática de exercícios. Realizada tomografia computadorizada sem contraste e, posteriormente, contrastada. As mesmas não esclareceram o caso, fazendo-se necessário angiotomografia, a qual evidenciou ausência de veia cava inferior torácica.The congenital absence of the inferior vena cava is a rare and occasional finding at complementary exams or abdominal surgeries. As the majority of patients without other malformations are asymptomatic, it is hard to estimate the prevalence of these anomalies. Our goal was to report a case of a 28-year-old patient, male, referred to thorax X-ray due to high fever state (39ºC, nonresponder to medication. The X-ray suggested azygos vein dilatation. The interview about cardiovascular symptoms revealed thoracic pain during both physical exercises and at rest, and occasional dyspnea during sleep related to the period of intensification of physical exercises. Computadorized tomography with and without contrast did not solve the case, what explain the request of an angiotomography, that showed absence of thoracic inferior vena cava.

  18. Advanced Techniques for Removal of Retrievable Inferior Vena Cava Filters

    Energy Technology Data Exchange (ETDEWEB)

    Iliescu, Bogdan; Haskal, Ziv J., E-mail: ziv2@mac.com [University of Maryland School of Medicine, Division of Vascular and Interventional Radiology (United States)

    2012-08-15

    Inferior vena cava (IVC) filters have proven valuable for the prevention of primary or recurrent pulmonary embolism in selected patients with or at high risk for venous thromboembolic disease. Their use has become commonplace, and the numbers implanted increase annually. During the last 3 years, in the United States, the percentage of annually placed optional filters, i.e., filters than can remain as permanent filters or potentially be retrieved, has consistently exceeded that of permanent filters. In parallel, the complications of long- or short-term filtration have become increasingly evident to physicians, regulatory agencies, and the public. Most filter removals are uneventful, with a high degree of success. When routine filter-retrieval techniques prove unsuccessful, progressively more advanced tools and skill sets must be used to enhance filter-retrieval success. These techniques should be used with caution to avoid damage to the filter or cava during IVC retrieval. This review describes the complex techniques for filter retrieval, including use of additional snares, guidewires, angioplasty balloons, and mechanical and thermal approaches as well as illustrates their specific application.

  19. Prevalencia de hipertrofia ventricular izquierda en pacientes diabéticos Prevalence of left ventricular hypertrophy in diabetic patients

    Directory of Open Access Journals (Sweden)

    Diego Valarezo-Sevilla

    2013-03-01

    Full Text Available Con el objetivo de establecer la prevalencia de hipertrofia ventricular izquierda (HVI en pacientes con diabetes mellitus tipo 2 (DM, se realizó un estudio transversal en estos pacientes, estableciendo sus características antropométricas, presión arterial y control metabólico. Para evaluar la presencia de HVI se empleó ecocardiografía transtorácica. El estudio incluyó 91 pacientes, en los cuales la prevalencia de HVI fue de 63,7%, siendo más frecuente en mujeres que en varones (p=0,001. Adicionalmente, se encontró un 46,2% de pacientes con disfunción diastólica del ventrículo izquierdo. Se concluye que existe una importante prevalencia de HVI en pacientes diabéticos sin antecedentes de causas definidas de hipertrofia. No se encontró relación con sexo, control metabólico, IMC y tiempo de diagnósticoIn order to establish the prevalence of left ventricular hypertrophy (LVH in patients with type 2 diabetes mellitus, (DM a cross-sectional study was conducted in these patients studying their anthropometric characteristics, blood pressure and metabolic control. To evaluate the presence of LVH, a trans-thoracic echocardiogram was used. The study included 91 patients, finding a 63.7% prevalence of HVI, with women being more affected than men (p=0.001. Additionally, 46.2% of patients were found to have diastolic dysfunction of the left ventricle. We conclude that there is an important prevalence of LVH in diabetic patients without defined causes of hypertrophy. There was no association with sex, metabolic control, BMI and time of diagnosis

  20. Simon nitinol vena cava filters: effectiveness and complications; Simon Nitinol-Vena-cava-Filter: Wirksamkeit und Komplikationen

    Energy Technology Data Exchange (ETDEWEB)

    Wolf, F.; Thurnher, S.; Lammer, J. [Universitaetsklinik fuer Radiodiagnostik, Vienna (Austria). Abt. fuer Angiographie und Interventionelle Radiologie

    2001-10-01

    Purpose: The aim of this retrospective analysis was to evaluate the clinical safety and effectiveness of the simon nitinol inferior vena cava filter (SNF) for prevention of pulmonary embolism. Patients and Methods: 117 patients (63 male, 54 female; aged 58.38 {+-} 14.59 years) underwent percutaneous implantation of an SNF from 1993 through 1999. Patient reports were retrospectively analysed for complications during and after implantation and deep venous thrombosis (DVT) and pulmonary embolism before and after implantation. Helical-CT with contrast media and plain abdominal radiography were performed on 35 patients, helical-CT alone on two patients. We checked the position and configuration of the SNF and looked for a perforation of the filter legs through the wall of the inferior vena cava (IVC). The IVC and deep pelvic veins were analysed for patency. Results: During implantation 10 of 117 (9%) patients had minor complications, major complications were reported in 0.9% (1/117). There was no significant increase in thrombosis of the deep pelvic veins and the IVC after implantation. Pulmonary re-embolism (PE) was documented in 9 out of 117 patients (7.7%). One out of the 35 examined patients (2.9%) showed a single strut fracture of the SNF. Tilting more than 15 was seen in 7 out of 37 patients (19%). Dislocation of the SNF more than 10 mm occurred in one out of 35 patients (2.9%), perforation through the wall of the IVC in all 37 patients. We found no occlusion of the IVC. (orig.) [German] Ziel: Das Ziel dieser Arbeit war, in einer retrospektiven Analyse die Sicherheit und Effektivitaet des simon nitinol vena cava filters (SNF) zu untersuchen. Patienten und Methoden: Zwischen 1993 und 1999 wurde bei 117 Patienten (63 Maenner, 54 Frauen; 58,38 Jahre {+-} 14,59 Jahre) ein SNF perkutan in die vena cava inferior (VCI) implantiert. Retrospektiv wurden die Krankengeschichten aller 117 Patienten studiert und auf Komplikationen in Bezug auf den SNF sowie auf neu

  1. Inferior vena cava leiomyosarcoma confirmed by catheter suction biopsy during digital subtraction angiography.

    Science.gov (United States)

    Wei, Ning; Xu, Xiang-Dong; Xu, Hao; Zu, Mao-Heng

    2014-01-01

    Leiomyosarcoma of vascular origin is a rare disease and most cases arise in the inferior vena cava. Inferior vena cava leiomyosarcoma (IVCLMS) usually presents in females in their sixth decade of life. The clinical symptoms are often non-specific and the diagnosis is often delayed. Current imaging techniques can accurately differentiate inferior vena cava neoplasms from other non-neoplastic lesions. However, definitive diagnosis of IVCLMS needs histologic evidence. We report a case of IVCLMS in a 61-year old Chinese woman. This is the first IVCLMS case confirmed by catheter suction biopsy during digital subtraction angiography. PMID:25232438

  2. Tratamiento de la compresión del tronco de la arteria coronaria izquierda en pacientes con hipertensión pulmonar

    OpenAIRE

    2011-01-01

    La angina de pecho es un síntoma frecuente en pacientes con hipertensión pulmonar (HP) de cualquier etiología. Aunque su fisiopatología no está aclarada, las causas propuestas son: la isquemia subendocárdica por aumento del estrés parietal del ventrículo derecho, la dilatación de la arteria pulmonar por incrementos transitorios de la presión pulmonar y la compresión extrínseca del tronco de la arteria coronaria izquierda (TCI) por la arteria pulmonar (AP) dilatada. Se presentan tres casos que...

  3. De "El Auténtico" a "La Voz": el pensamiento de la izquierda peronista antes y después de la dictadura (1975-1984

    Directory of Open Access Journals (Sweden)

    Joaquín Baeza Belda

    2010-01-01

    Full Text Available En 1975, en el contexto del conflictivo y cada vez más represivo gobierno de Isabel Perón, la organización armada Montoneros, de la izquierda peronista, decide lanzar un partido político propio, el Partido Peronista Auténtico, con la intención de desarrollar una labor fuera de la clandestinidad. El partido editó además el periódico El Auténtico, en el que se expresaban las ideas de este importante segmento de la izquierda peronista. Tras el golpe de 1976 y varios años de dura represión, durante los primeros pasos de la apertura política se creó el diario La Voz, en torno al que se reagrupó gran parte de la izquierda peronista superviviente que se desarrollaba a partir de la línea interna Intransigencia y Movilización. Si bien no es posible encontrar una sucesión directa entre ambas publicaciones, las continuidades son evidentes y su comparación permite estudiar los cambios producidos en el ideario y en la cultura política del peronismo y sus sectores de izquierda durante la transición a la democracia.______________ABSTRACT:In 1975, in the context of the troubled and ever more repressive government of Isabel Peron, the Montoneros, a guerrilla force from the peronist left, decided to create their own political party: Partido Peronista Auténtico. Their aim was to develop their activities outside clandestinity.  Besides, they started to publish El Autentico, a newspaper through which they expressed the ideas of this important segment of the peronist left. After the 1976 coup d’état, and several years of harsh repression, the first steps to political liberalization were taken. It was in those years that the newspaper La Voz was created as a meeting point for most of the surviving peronist left, which formed part of the Intransigencia y Movilización movement, an internal line within the party.  Although there is no direct succesion between both publications, there is a clear continuity between them. This is why their

  4. Simon nitinol vena cava filters: effectiveness and complications

    International Nuclear Information System (INIS)

    Purpose: The aim of this retrospective analysis was to evaluate the clinical safety and effectiveness of the simon nitinol inferior vena cava filter (SNF) for prevention of pulmonary embolism. Patients and Methods: 117 patients (63 male, 54 female; aged 58.38 ± 14.59 years) underwent percutaneous implantation of an SNF from 1993 through 1999. Patient reports were retrospectively analysed for complications during and after implantation and deep venous thrombosis (DVT) and pulmonary embolism before and after implantation. Helical-CT with contrast media and plain abdominal radiography were performed on 35 patients, helical-CT alone on two patients. We checked the position and configuration of the SNF and looked for a perforation of the filter legs through the wall of the inferior vena cava (IVC). The IVC and deep pelvic veins were analysed for patency. Results: During implantation 10 of 117 (9%) patients had minor complications, major complications were reported in 0.9% (1/117). There was no significant increase in thrombosis of the deep pelvic veins and the IVC after implantation. Pulmonary re-embolism (PE) was documented in 9 out of 117 patients (7.7%). One out of the 35 examined patients (2.9%) showed a single strut fracture of the SNF. Tilting more than 15 was seen in 7 out of 37 patients (19%). Dislocation of the SNF more than 10 mm occurred in one out of 35 patients (2.9%), perforation through the wall of the IVC in all 37 patients. We found no occlusion of the IVC. (orig.)

  5. Estudo comparativo da biocompatibilidade da submucosa intestinal porcina e pericárdio bovino usados como enxertos na veia cava de cães Comparative study of the biocompatibility of the porcine intestinal submucosa and bovine pericardium used as grafts in the inferior cava vein of dogs

    Directory of Open Access Journals (Sweden)

    Fernando Hintz Greca

    2005-08-01

    Full Text Available OBJETIVO: Comparar a biocompatibilidade entre submucosa de intestino delgado (SID porcino e o pericárdio bovino como enxerto no reparo de lesões criadas na veia cava inferior de cães. MÉTODOS: Dezesseis cães foram submetidos a laparotomia. Após a abertura da cavidade abdominal a veia cava foi identificada e em seguida procedeu-se com a retirada de um segmento elíptico de 1,5X3cm de sua parede anterior. Em 8 animais o defeito foi reparado com SID porcino (grupo A e nos 8 animais restantes o defeito foi reparado com pericárdio bovino (grupo B.No 30° dia de P.O. realizou-se uma ultra-sonografia e a eutanásia foi realizada no 40°dia de pós-operatório. RESULTADOS: Observou-se estenose da veia cava em 1 cão do grupo do grupo A e em 2 animais do grupo B além de trombose em 1 cão desse mesmo grupo. A análise microscópica revelou um processo inflamatório crônico moderado em ambos os grupos. A endotelização do enxerto, regeneração de fibras musculares lisas e depósito de colágeno também foi similar nos 2 grupos estudados. CONCLUSÃO: A SID provou ser um excelente substrato para a regeneração vascular quando implantado em veia cava superior, contudo os resultados encontrados não diferem daqueles observados com o uso de pericárdio bovino.PURPOSE: To compare the biocompatibility of the bovine pericardium and the small intestine submucosa (SIS when used to repair a created defect in the inferior vena cava of dogs. METHODS: Sixteen male mongrel dogs were submitted to a midline laparotomy incision. An elliptical segment (1,5 X 3,0 cm of the inferior vena cava, below the renal veins, was excised. In 8 dogs, the A group, a patch of porcine small bowel submucosa was used to repair the defect. In the 8 remaining dogs, the B group, a bovine pericardium was implanted in the vena cava. On the 30th post-operative day an ultrasound was performed in order to identify stenosis. The euthanasia was accomplished in the 40th post-operative day

  6. Temporary vena cava filter for the thrombolytic treatment of venous thrombosis

    International Nuclear Information System (INIS)

    Objective: To study the value of the temporary vena cava filter in the prevention of ectopic embolism formation in cases with thrombolytic therapy of venous thrombosis. Methods: Of 11 patients, 10 suffered from venous thrombosis of lower limb and 1 from thrombosis of right internal jugular vein with persistent truncus arteriosus were treated by inserting permanent or temporary vena cava filter via median vein. Results: In all 11 case control of symptoms followed this treatment occurred 7 to 15 days, thrombi were completely or partly dissolute, the blood vessels re-canalized, and finally removed the temporary vena cava filter. There were no complication and ectopic emboli related to thrombolytic therapy. Conclusions: The observation indicated that temporary vena cava filter insertion is safe and effective to prevent ectopic embolism in thrombolytic therapy of venous thrombosis

  7. ¿Fascistas o revolucionarios? Política de izquierda y de derecha entre los campesinos pobres ¿Fascistas o revolucionarios? Política de izquierda y de derecha entre los campesinos pobres

    Directory of Open Access Journals (Sweden)

    Leslie Anderson

    2001-01-01

    Full Text Available La expansión de la democracia en América Latina y su extensión en el tiempo ha puesto de manifiesto una tendencia sorprendente y preocupante. Muchos de los nuevos electores latinoamericanos han dado su apoyo a candidatos de derecha y no democráticos que una vez en el poder han atentado de diversas maneras contra la democracia. Dentro del electorado se constata que ese apoyo a las fuerzas antidemocráticas es mayor en la población rural. A la luz de la bibliografía de los años 70 y 80 sobre las revoluciones campesinas de Rusia, China, Cuba o Nicaragua, este derechismo campesino es un rompecabezas: ¿los campesinos son fascistas o revolucionarios? Para descifrar este enigma, el trabajo en primer lugar analiza cuatro casos de apoyo rural al fascismo o al autoritarismo populista en la primera mitad del siglo XX (Francia, Italia, Alemania y Argentina. Compara los factores explicativos que emergen de esa comparación con los resultados obtenidos de la investigación sobre el izquierdismo campesino en China, Rusia, Cuba y Nicaragua. La conclusión del trabajo es que hay dos conjuntos de factores que explican el apoyo de los campesinos a la izquierda o a la derecha. El primer tipo de factores, de transfondo, incluye el contexto económico y las relaciones sociales de propiedad y tenencia de la tierra. El segundo tipo de factores, de primer plano,incluye el tipo de liderazgo, el estilo organizativo y la habilidad política, así como el tipo de retórica que se usa para atraer el voto campesino. La población rural no es por naturaleza ni de derecha ni de izquierda, sino que su apoyo puede llevarse a cualquiera de los dos lados dependiendo del trasfondo económico-social y de la escena política. En América Latina hay que estudiar en detalle los estilos de liderazgo y las retóricas de los candidatos. Estas variables de primera instancia nos van a permitir dictaminar si el apoyo electoral dará lugar a panoramas fascistas o autoritarios como los

  8. A novel technique to remove inferior vena cava filters using a homemade snare device.

    Science.gov (United States)

    Singh, Kuldeep; Zia, Saqib; Khan, Muhammad Asad; Marco, Sean; Hill, David

    2014-01-01

    The need to retrieve inferior vena cava filters is quite evident due to the long-term complications. We present a novel technique to remove inferior vena cava filters using a homemade snare created using a looped a 0.014-inch semistiff wire. Employing this technique, 18 consecutive retrievable filters were removed. All filters were easily snared on the very first attempt, and no complications occurred. Our novel technique to retrieve filters is efficient, safe, and cost-effective. PMID:26992977

  9. Living donor liver transplantation in the absence of inferior vena cava: a case report.

    Science.gov (United States)

    Hatipoglu, S; Olmez, A; Ozgor, D; Kayaalp, C; Yilmaz, S

    2012-01-01

    Because of difficulties in the supply of cadaveric organs, of living donor liver transplantations are performed in increasing numbers. Congenital hepatic fibrosis associated with fibrosis and atrophy of the inferior vena cava were present in a potential recipient of living donor liver transplantation. This case report documented living donor liver transplantation as a treatment modality for a patient with absence of the inferior vena cava due to chronic liver failure. PMID:22841266

  10. Anatomy of the ostia venae hepaticae and the retrohepatic segment of the inferior vena cava.

    OpenAIRE

    Camargo, A M; Teixeira, G G; Ortale, J R

    1996-01-01

    In 30 normal adult livers the retrohepatic segment of inferior vena cava had a length of 6.7 cm and was totally encircled by liver substance in 30% of cases. Altogether 442 ostia venae hepaticae were found, averaging 14.7 per liver and classified as large, medium, small and minimum. The localisation of the openings was studied according to the division of the wall of the retrohepatic segment of the inferior vena cava into 16 areas.

  11. Anatomy of the ostia venae hepaticae and the retrohepatic segment of the inferior vena cava.

    Science.gov (United States)

    Camargo, A M; Teixeira, G G; Ortale, J R

    1996-02-01

    In 30 normal adult livers the retrohepatic segment of inferior vena cava had a length of 6.7 cm and was totally encircled by liver substance in 30% of cases. Altogether 442 ostia venae hepaticae were found, averaging 14.7 per liver and classified as large, medium, small and minimum. The localisation of the openings was studied according to the division of the wall of the retrohepatic segment of the inferior vena cava into 16 areas. PMID:8655416

  12. Huge Trombus including Left Renal Vein, Ovarian Vein, and Inferior Vena Cava Mimicking Renal Colic

    OpenAIRE

    Sakir Ongun; Sermin Coban; Abdullah Katgi; Funda Obuz; Aykut Kefi

    2014-01-01

    A 31-year-old female presented with acute left flank pain; she had a C/S at the postpartum day 24. Ureteral stone was suspected but ultrasound examination was normal. Then Doppler ultrasound revealed a trombus in left renal vein and inferior vena cava. Contrast enhanced MDCT scan showed swelled and nonfunctional left kidney, a trombus including distal part of left ovarian vein, left renal vein, and inferior vena cava. We started anticoagulation treatment. Further examination revealed diagnosi...

  13. Superior Hiking Trail

    Data.gov (United States)

    Minnesota Department of Natural Resources — Superior Hiking Trail main trail, spurs, and camp spurs for completed trail throughout Cook, Lake, St. Louis and Carlton counties. These data were collected with...

  14. Superior Hiking Trail Facilities

    Data.gov (United States)

    Minnesota Department of Natural Resources — Superior Hiking Trail main trail, spurs, and camp spurs for completed trail throughout Cook, Lake, St. Louis and Carlton counties. These data were collected with...

  15. Bathymetry of Lake Superior

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Bathymetry of Lake Superior has been compiled as a component of a NOAA project to rescue Great Lakes lake floor geological and geophysical data and make it more...

  16. Angioplastia del tronco de la arteria coronaria izquierda no protegido en pacientes con alto riesgo quirúrgico

    Directory of Open Access Journals (Sweden)

    Victor Mauro

    2008-01-01

    Full Text Available IntroducciónEl tratamiento de elección de la enfermedad del tronco de la coronaria izquierda (TCI es la cirugía de revascularización miocárdica (CRM. Un número creciente de pacientes presenta comorbilidades y/o inestabilidad clínica que condicionan un alto riesgo quirúrgico.ObjetivosEvaluar los resultados de la angioplastia (ATC del TCI no protegido en pacientes con alto riesgo para CRM (EUROSCORE = 6.Material y métodosDe 59 pacientes con ATC de TCI no protegido se excluyeron 8 con infarto agudo de miocardio (IAM en shock cardiogénico y 12 sin características de alto riesgo; de los restantes pacientes de alto riesgo fueron objeto de este estudio los 32 tratados con stents convencionales.Se comparó la mortalidad hospitalaria predicha por EUROSCORE logístico con la observada, así como la incidencia de complicaciones mayores y su evolución alejada.ResultadosLa mediana de edad fue de 76,5 años, el 41% tenía 80 años o más, el 22% eran mujeres, el 28% diabéticos, el 56% tenía disfunción ventricular moderada a grave, el 31% insuficiencia renal crónica, el 50% vasculopatía periférica, el 53% angina refractaria, el 22% IAM reciente, el 28% procedimientos de emergencia y la mediana de EUROSCORE fue de 10,5 puntos.El 41% de los pacientes presentaban compromiso del TCI distal. El éxito angiográfico fue del 94%. Se utilizaron inhibidores IIb/IIIa en el 47%, cutting balloon en el 28%, Rotablator® en el 3% y balón de contrapulsación en el 31%. En todos se implantó un stent y en el 50% se trataron otras obstrucciones.La mortalidad hospitalaria fue del 3,1% (intervalo de confianza del 95% 0,2%-14,5%, p = 0,003, en tanto que la predicha era del 23,8%. Ningún paciente presentó déficit neurológico, IAM transmural ni requirió diálisis. Un paciente debió ser sometido a CRM electiva por fracaso del procedimiento.La mediana de seguimiento fue de 15,5 meses, período en el que se registraron 6 muertes (2 cardiovasculares y 4

  17. Radiographic evaluation of caudal vena cava size in dogs

    International Nuclear Information System (INIS)

    Dilation of the caudal vena cava (CVC) on lateral thoracic radiographs is often interpreted as suggestive of right-sided congestive heart failure, To quantitate the clinical utility of evaluating CVC size as an indicator of right-sided heart disease, we compared the ratio of the diameter of the CVC as measured on a left lateral thoracic radiograph to the descending aorta (Ao), length of the thoracic vertebra above the tracheal bifurcation (VL), and width of the right fourth rib (R4) in 35 dogs with right heart disease and 35 control dogs, Each CVC ratio(CVC/Ao, CVC/VL, CVC/R4) was statistically larger in dogs with right heart disease, Response operating characteristic curves and likelihood ratios were used to determine ratios helpful in identifying dogs with right heart disease. A CVC/Ao > 1.50, CVC/VL > 1.30, or CVC/R4 > 3.50 are strongly suggestive of a right-sided heart abnormality in a patient

  18. Inferior vena cava filter placement in orthopedic surgery.

    Science.gov (United States)

    Bass, Anne R; Mattern, Christopher J; Voos, James E; Peterson, Margaret G E; Trost, David W

    2010-09-01

    Inferior vena cava (IVC) filters were developed for the treatment of venous thromboembolism but in high-risk patients are often used for prophylaxis instead. In the study reported here, we reviewed all the orthopedic surgery cases in which IVC filters were used at our institution in 2005. Charts were analyzed and patients contacted by telephone for long-term follow-up. IVC filters were used in 90 (0.96%) of the 9,348 inpatient orthopedic surgeries. Sixty-one percent of filters were placed for prophylaxis, though only 42% of patients with prophylactic filters had a contraindication to anticoagulation. Eighty-one percent of patients with prophylactic filters who received anticoagulation received warfarin. Ratios of prophylactic-to-treatment filters were 3.25 for fracture surgeries, 2.1 for arthroplasties, and 0.89 for spine surgeries. Five percent of patients with prophylactic filters developed deep vein thrombosis. Fifty-two percent of filters were retrievable, but only 40% of those were removed a mean of 5.1 months (SD, 3.9 months) after placement. Filter removal was associated with complications in 11% of patients, and in another 10% the filter could not be removed. Forty-one patients were contacted a mean of 21 months (SD, 3 months) after filter placement. Only 32% of those who still had filters were on anticoagulation at follow-up. PMID:21290021

  19. Inferior vena cava filters: What radiologists need to know

    International Nuclear Information System (INIS)

    Inferior vena cava (IVC) filters are a controversial mechanical adjunct in the prevention of pulmonary embolism, the most serious result of venous thromboembolism. Despite modern IVC filters being in clinical use for more than 45 years, there is still uncertainty amongst many radiologists about the indications for IVC filter placement and their removal, particularly the more recent prophylactic use in patients without confirmed deep vein thrombosis (DVT) or pulmonary embolism (PE). Recently published guidelines on filter use from the National Institute of Health and Clinical Excellence (NICE) and other professional bodies are discussed. The vast majority of IVC filters in the UK are inserted by interventional radiologists, so radiologists may be the first point of contact for information requested by other clinicians. The increasing use of filters means that radiologists will encounter filters increasingly often during abdominal cross-sectional imaging. Awareness of common filter-related complications, such as tilting, thrombosis, and caval perforation, is useful to reassure or alert other clinicians. The potential role of filters in upper extremity DVT and requirement for concomitant anticoagulation is discussed

  20. Study of 99Tcm-annexin V distribution in inferior vena cava thrombus models of rabbits

    International Nuclear Information System (INIS)

    To study 99Tcm-Annexin V distribution in inferior vena cava thrombus models of rabbits and uptake of 99Tcm-Annexin V in fresh and old venous thrombus. Rabbits (n=15) were randomly grouped into 3 groups (the fresh thrombus group, old thrombus group, and control group). The rabbits of two thrombus groups developed inferior vena cava thrombus models by operations. The control group received sham operation. The fresh thrombus group and control group rabbits were injected 99Tcm-Annexin V after operating 1 d; the old thrombus group 14 d. After 1 h all rabbits were killed by injecting overdose pentobarbital sodium. The thrombus (or the inferior vena cava about 3 cm below inferior pole of right kidney level in the control group rabbits), blood, thrombus area inferior vena cava, head lateral inferior vena cava (except the control group), thigh muscle, stomach, myocardium, pulmonary, liver, kidney, spleen, bone and small intestine were obtained from all group rabbits. The ex tissue and blood were weighed and measured by a Well-type detector. The percentage of the injected dose per gram of ex tissue (or blood) was calculated by the above data. The thrombus to blood, thrombus area inferior vena cava, head lateral inferior vena cava and thigh muscle ratios were calculated by percentage of the injected dose per gram of ex tissue (or blood). The test was used to compare the fresh thrombus group and old thrombus group by SPSS 17.0. The percentage of' the injected dose per gram of thrombi (0.01894± 0.002 16% ID/g) in the fresh thrombus group was higher than the old thrombus group (0.00473±0.001 28% ID/g), P<0.05. The thrombus to blood, thrombus area inferior vena cava, head lateral inferior vena cava and muscle ratios (3.42±1.06, 26.32±13.60, 31.23 ±16.00, 111.62±52.23) in the fresh thrombus group were higher than the old thrombus group (0.98±0.09, 5.12±2.01, 6.25±2.38, 21.82±5.93), P<0.05 for all. All the thrombi of the fresh thrombus group were confirmed fresh

  1. Fibrosing mediastinitis with superior vena cava obstruction as the initial presentation of Langerhans' cell histiocytosis in a young child

    International Nuclear Information System (INIS)

    We present a 2-year-old girl with an unusual presentation of Langerhans' cell histiocytosis (LCH). Five months prior to admission to our hospital, she received IV steroids for bronchial obstruction. On admission, clinical signs of SVC obstruction were evident and a mediastinal mass was evident on the chest radiograph and MRI. Biopsy revealed fibrosing mediastinitis. Five months later, osteolysis was present on a skull radiograph. Surgical biopsy of the skull lesion revealed LCH. This case is unique because it demonstrates a rare initial manifestation of LCH that has not been previously reported. Furthermore, the primary, solitary mediastinal manifestation without calcifications was histologically interpreted as fibrosing mediastinitis, and the final diagnosis of LCH was only made after identifying the skull lesion. (orig.)

  2. Vena cava filters in cancer patients: experience with 50 patients Filtros de veia cava inferior em pacientes com câncer: experiência em 50 casos

    Directory of Open Access Journals (Sweden)

    Antonio Eduardo Zerati

    2005-10-01

    Full Text Available OBJECTIVE: To study the immediate and late results obtained from the implantation of vena cava filters in cancer patients with deep vein thrombosis concomitant with neoplasia. METHODS: This was a retrospective evaluation of 50 patients with an association of cancer and deep venous thrombosis who underwent interruption of the inferior vena cava and the insertion of permanent vena cava filters. The indications for the procedure, filter implantation technique, early and late complications related to the operation, and the clinical evolution were evaluated. RESULTS: The most frequent indication for filter implantation was the contraindication for full anticoagulant treatment (80%. The femoral vein was the preferred access route (86% of the patients. There were no complications related to the surgical procedure. During the follow-up, the following complications were observed: 1 episode of nonfatal pulmonary thromboembolism, 2 cases of occlusion of the inferior vena cava, and 1 case of thrombus retained in the device. Twenty patients (40% died due to progression of the neoplasm. CONCLUSIONS: Interruption of the inferior cava vein using an endoluminal filter is a procedure with a low rate of complications. It is a safe and efficient measure for preventing pulmonary embolism in cancer patients who have deep vein thrombosis of the lower limbs.OBJETIVO: Estudar os resultados imediatos e tardios obtidos com a implantação de filtros de veia cava inferior em pacientes com trombose venosa profunda concomitante a neoplasia. MÉTODOS: Avaliamos retrospectivamente 50 pacientes com câncer e trombose venosa profunda associada submetidos a interrupção de veia cava inferior com filtros intraluminais definitivos. Foram estudados aspectos referentes à indicação do procedimento, à técnica de implante dos dispositivos, complicações precoces e tardias relacionadas à operação e à evolução dos pacientes. RESULTADOS: A indicação mais freqüente para o

  3. Decision Making: Superiority Degree

    OpenAIRE

    Zhukovin, Vladimer; Alimbarashvili, Zurab

    2010-01-01

    It is introduced the concept of Superiority Degree one competitive decision over another. On the basis of this concept the mathematics theoretic structure is developed, which is part of pairs comparisons branch in modern decision making theory. It will be useful for practice and interesting for scientific research.

  4. Extension of adrenal tumors into the vena cava: results of magnetic resonance angiography

    International Nuclear Information System (INIS)

    In rare cases, large adrenal masses with a suspicion of malignancy exhibit tumor extension into the adrenal vein and inferior vena cava. When planning surgery, the relationship of the extension to the inferior vena cava is of decisive improtance. We describe in two cases on the detection of a tumor thrombus in the inferior vena cava arising from a malignant adrenal mass by means of MR angiography (TOF, coronary 2D GRE images [FLASH], 3 slices acquired during 15 second apnea). The angiograms correlated well with the results of DSA venacavography and with the intraoperative findings. Thus, MRA has been demonstrated to be suitable for the certain proof of a venous tumor thrombus not only in cases of renal cell carcinomas but also in cases of malignant adrenal masses. The method should be applied whenever there is evidence of a venous involvement in the adrenal MR images. (orig.)

  5. Temporary Inferior Vena Cava Filters: How Do We Move Forward?

    Science.gov (United States)

    Arous, Edward J; Messina, Louis M

    2016-05-01

    Despite their widespread use, the indications for the selective use of temporary inferior vena cava (IVC) filters remains uncertain with few trials supporting their use. Additionally, the risks of long-term temporary IVC filter insertion are being increasingly discussed amongst the mainstream media and through multiple class action lawsuits. Retrievable IVC filters were specifically designed to have a less secure implantation in order to facilitate retrieval. However, multiple reports have demonstrated significant filter-related complications, most commonly related to duration of implantation. Furthermore, the risk is not isolated to one manufacturer alone. The incidence of filter-related complications is linearly related to its duration of time on the market. Currently, the FDA recommends that IVC filters be removed within 25-54 days of their implantation. Unfortunately, little evidence exists to show that this recommendation is followed routinely. Recently, the PRESERVE Trial (NCT02381509) was initiated as a multicenter non-randomized open label study to determine the safety and effectiveness of commercially available IVC filters (both temporary and permanent) in individuals who require mechanical prophylaxis against pulmonary embolism. Until such evidence is developed, temporary IVC filters should be implanted based on best available evidence and routinely removed within the guidelines of the FDA of 25-54 days. A fair question at this point is whether the design features themselves that are required to manufacture a low profile removable IVC filter can achieve effective prophylaxis against pulmonary embolism at a low rate of short and long-term complications. PMID:27012891

  6. Percutaneous placement of bird's nest inferior vena cava filter

    International Nuclear Information System (INIS)

    To describe clinical experiences of the use of Bird's Nest inferior vena cava(IVC) filter. Between August 1991 and August 1997, IVC filter was percutaneously inserted in 51 patients with pulmonary embolism(PE) and deep vein thrombosis of the lower extremities. Indications for the placement of this filter were contraindication to anticoagulation in 17 patients, prophylaxis of PE in 17, failed anticoagulation in 11, massive PE with residual floating thrombus in three and complications involving anticoagulation in 3. In order to delineate the location of renal vein and extension of deep vein thrombosis into the IVC, all patients under went inferior vena cavography before filter placement. Thirty filters were inserted through the right femoral vein, 19 through the right internal jugular vein and three through the left femoral vein. The patients involved were followed up for periods ranging from one week to six years (mean 10 months). A Bird's Nest IVC filter was placed in the infrarenal IVC in 44 patients and in the suprarenal IVC in 7. Certain complicatioins ensued. IVC penetration occurred in three patients(5.9%), and in seven(1.37%) the filter wire prolapsed. Except for transient pain, however, there were no serious IVC penetration-related complications and no evidence of recurrence of PE in the cases involving prolapse of the filter wire. During follow up, clinically suspected recurrent PE was noted in two patients(3.9%), but there was no evidence of newly developed occlusion of the IVC. In patients who under went follow up, Bird's Nest IVC filter effectively prevented the development and recurrence of PE, and there were no complications. To prevent of penetration of the IVC and prolapse of the filter, however, technical skill was needed

  7. Determinants of survival after inferior vena cava trauma.

    Science.gov (United States)

    Kuehne, J; Frankhouse, J; Modrall, G; Golshani, S; Aziz, I; Demetriades, D; Yellin, A E

    1999-10-01

    Inferior vena cava (IVC) injuries continue to be associated with mortality rates of 21 to 66 per cent despite advances in prehospital, surgical, and critical care. The purpose of this study was to evaluate outcome of patients with IVC injury after treatment at a major urban trauma center and to identify factors predictive of survival. Between 1989 and 1995, 158 patients presented to the Los Angeles County + University of Southern California Medical Center with IVC injuries. One hundred thirty-six patient records were available for review, and 69 data points were collected and analyzed. Mean age was 26 years (range, 6-54), and 122 (90%) patients were male. Mechanism of injury included gunshot in 88 (65%) patients, stab in 23 (17%) patients, shotgun in 7 (5%) patients, and blunt trauma in 18 (13%) patients. The mean Injury Severity Score was 25. Seventy (52%) patients were hypotensive. Eleven (8%) patients died before surgical intervention, and 25 (18%) patients died before operative repair. Repair (79), ligation (20), or observation (1) was accomplished in 100 (74%) patients. Overall survival was 48 per cent and 65 per cent in the 100 patients surviving to operative repair, including 5 of 20 patients requiring IVC ligation. Significant differences (Pthoracotomy, blood loss, level of injury, tamponade, and associated aortic injury. Logistic regression analysis identified hypotension, anatomic level of injury, and associated aortic injury as significant predictors of outcome (P = 0.001). Survival is predominantly determined by severity and anatomic accessibility of the IVC injury and by the absence of associated major vascular injuries. Ligation may control otherwise exsanguinating injuries and should be considered early in the management of complex injuries. PMID:10515547

  8. Design Optimization of Vena Cava Filters: An application to dual filtration devices

    Energy Technology Data Exchange (ETDEWEB)

    Singer, M A; Wang, S L; Diachin, D P

    2009-12-03

    Pulmonary embolism (PE) is a significant medical problem that results in over 300,000 fatalities per year. A common preventative treatment for PE is the insertion of a metallic filter into the inferior vena cava that traps thrombi before they reach the lungs. The goal of this work is to use methods of mathematical modeling and design optimization to determine the configuration of trapped thrombi that minimizes the hemodynamic disruption. The resulting configuration has implications for constructing an optimally designed vena cava filter. Computational fluid dynamics is coupled with a nonlinear optimization algorithm to determine the optimal configuration of trapped model thrombus in the inferior vena cava. The location and shape of the thrombus are parameterized, and an objective function, based on wall shear stresses, determines the worthiness of a given configuration. The methods are fully automated and demonstrate the capabilities of a design optimization framework that is broadly applicable. Changes to thrombus location and shape alter the velocity contours and wall shear stress profiles significantly. For vena cava filters that trap two thrombi simultaneously, the undesirable flow dynamics past one thrombus can be mitigated by leveraging the flow past the other thrombus. Streamlining the shape of thrombus trapped along the cava wall reduces the disruption to the flow, but increases the area exposed to abnormal wall shear stress. Computer-based design optimization is a useful tool for developing vena cava filters. Characterizing and parameterizing the design requirements and constraints is essential for constructing devices that address clinical complications. In addition, formulating a well-defined objective function that quantifies clinical risks and benefits is needed for designing devices that are clinically viable.

  9. Advanced Hepatocellular Carcinoma with Subtotal Occlusion of the Inferior Vena Cava and a Right Atrial Mass

    Directory of Open Access Journals (Sweden)

    Christian Steinberg

    2013-01-01

    Full Text Available Hepatocellular carcinoma usually metastasizes to regional lymph nodes, lung, and bones but can rarely invade the inferior vena cava with intravascular extension to the right atrium. We present the case of a 75-year-old man who was admitted for generalized oedema and was found to have advanced HCC with invasion of the inferior vena cava and endovascular extension to the right atrium. In contrast to the great majority of hepatocellular carcinoma, which usually develops on the basis of liver cirrhosis due to identifiable risk factors, none of those factors were present in our patient.

  10. Huge Trombus including Left Renal Vein, Ovarian Vein, and Inferior Vena Cava Mimicking Renal Colic

    Directory of Open Access Journals (Sweden)

    Sakir Ongun

    2014-01-01

    Full Text Available A 31-year-old female presented with acute left flank pain; she had a C/S at the postpartum day 24. Ureteral stone was suspected but ultrasound examination was normal. Then Doppler ultrasound revealed a trombus in left renal vein and inferior vena cava. Contrast enhanced MDCT scan showed swelled and nonfunctional left kidney, a trombus including distal part of left ovarian vein, left renal vein, and inferior vena cava. We started anticoagulation treatment. Further examination revealed diagnosis of chronic myeloproliferative disease. The trombus was completely recanalized at 3-month followup.

  11. Experiência preliminar com novo filtro de veia cava: resultados de 15 implantes Preliminary experience with a new vena cava filter: results of 15 implantations

    Directory of Open Access Journals (Sweden)

    Winston B. Yoshida

    2008-09-01

    Full Text Available Este estudo apresenta resultados preliminares obtidos com um novo filtro permanente de veia cava, baseado no desenho de Greenfield, com três hastes prolongadas de um total de seis, para dar estabilidade central ao filtro na luz da veia cava. Neste artigo, relatamos sua avaliação clínica preliminar quanto à aplicabilidade, eficácia e segurança. De agosto de 2004 a dezembro de 2006, 15 filtros foram implantados em nove homens e seis mulheres, com idades variando de 38 a 79 anos (média de 57,8 anos. O acesso foi feito sempre por via transjugular. As indicações foram: trombose venosa proximal, com contra-indicação de anticoagulação em 12 pacientes; complicações hemorrágicas com anticoagulação em dois pacientes; e embolia pulmonar, apesar de anticoagulação adequada, em um paciente. Os filtros foram avaliados quanto à liberação, inclinação, mau posicionamento e perfuração de cava. No seguimento, avaliou-se trombose no local de acesso, tromboembolismo venoso recorrente, migração do filtro e trombose de cava pelo ultra-som. Nenhum paciente recebeu anticoagulantes no seguimento. O filtro foi liberado com sucesso em todos os casos sem mau posicionamento, inclinação, perfuração ou trombose de acesso. Os pacientes foram seguidos entre 3 e 23 meses (média de 11 meses. Nenhum paciente teve recorrência de tromboembolismo venoso. Não houve casos de trombose de veia cava ou migração do filtro. Óbito ocorreu em sete casos, todos relacionados com a moléstia de base. Os resultados preliminares indicam potencial eficácia e segurança do uso do novo filtro no período estudado.This study presents preliminary results obtained from a new permanent filter, based on Greenfield's filter design, with prolongations on three of six struts to stabilize it centrally in the vena caval lumen. The preliminary clinical evaluation of the filter with regard to feasibility, efficacy and safety is reported. From August 2004 to December 2006

  12. Cartografía de las publicaciones periódicas judías de izquierda en Argentina, 1900-1953

    Directory of Open Access Journals (Sweden)

    Alejandro Dujovne

    2009-04-01

    Full Text Available ResumenLa fuerte inversión política y cultural en la palabra impresa que tuvo lugar dentro del mundo culturaljudío argentino a lo largo del siglo XX se mostró especialmente intensa y rica en el arco ideológico dela izquierda. Así, sobre la base de un prolongado trabajo de registro y sistematización de las publicacionesperiódicas judías impresas en Buenos Aires a lo largo del siglo XX, el artículo se concentra en el análisis delconjunto de publicaciones de izquierda editadas entre 1900 y 1953. En este sentido, se propone un mapeode la diversidad de emprendimientos y a partir de él un primer esbozo de periodización a partir del cualresulte posible aproximarnos a los rasgos generales de la emergencia y las transformaciones socio-históricasde un espacio específico de publicaciones judías de izquierda. De este modo, el texto expone los contornosde un universo denso de producción, circulación y consumo de bienes simbólicos estructurado sobre doslenguas y conformado por un diverso conjunto de agentes culturales y políticos situados en el país y en elexterior. La objetivación de este espacio mediante una aproximación cartográfica como la que aquí sepropone abre un terreno de problemas e hipótesis de investigación aún no explorado.AbstractThe strong political and cultural investment in the printed word that took place within the ArgentineJewish cultural world throughout the twentieth century was particularly intense and rich in the arc of theideological left. Thus, based on a lengthy work of record and systematization of Jewish periodicals printedin Buenos Aires along the twentieth century, the article focuses on the analysis of the left-wing periodicalspublished between 1900 and 1953. In this regard, it proposes a mapping of the diversity of enterprises, andfrom it a first outline of periodization from which it is possible to reach the general features of the emergencyand the socio-historical transformations of a specific

  13. Sobre viejas y nuevas izquierdas. Los jóvenes comunistas uruguayos y el movimiento estudiantil de 1968 On the Old and New Left. Young Uruguayan Communists and the 1968 Student Movement

    Directory of Open Access Journals (Sweden)

    Vania Markarian

    2011-12-01

    Full Text Available Este trabajo se centra en la participación de los jóvenes comunistas uruguayos en el movimiento estudiantil de 1968 como parte de una generación de latinoamericanos que combinó una visión heroica de la militancia con la adopción de nuevas pautas culturales provenientes de Europa y Estados Unidos. Se analizan tanto las discusiones generadas en el seno de la izquierda sobre las "vías de la revolución" como el efecto de esas ideas y prácticas de circulación global en la conformación de identidades políticas a nivel local. La articulación entre militancia de izquierda, violencia política y cultura juvenil busca repensar algunas categorías usadas al estudiar los años sesenta en América Latina, especialmente las de "nueva izquierda" e "izquierda revolucionaria".This article focuses on the participation of young Uruguayan communists in the 1968 student movement as part of the generation of Latin Americans who combined a heroic view of militancy with the adoption of new cultural guidelines for Europe and the United States. It analyzes both the discussion that arose in the left on the "pathways of the revolution" and the effect of these global ideas and practices in shaping local political identities. The link between leftist militancy, political violence and youth culture attempts to rethink some of the categories used in studying the 1960s in Latin America, particularly those of the "new left" and "revolutionary left."

  14. Origin of the infrarenal part of the caudal vena cava in the pig.

    Science.gov (United States)

    Cornillie, P; Van Den Broeck, W; Simoens, P

    2008-10-01

    The vascular topography in the lumbar region of pig embryos and young fetuses was three-dimensionally reconstructed to study some controversial aspects of the origin and development of the infrarenal part of the caudal vena cava. Contrary to general belief, it was found that the supracardinal veins, which form the azygos veins in the thorax, do not take part in the construction of the caudal vena cava in the lumbar region. These veins do appear in the abdomen, but they are only involved in the formation of the lumbar and ascending lumbar veins. The infrarenal part of the caudal vena cava arises from the lumbar part of the right caudal cardinal vein. Whilst this venous pattern is established, the lumbar part of the left caudal cardinal vein disappears and its former location is occupied by large lymphatic connections between the cysterna chyli and the retroperitoneal mesenteric lymphatic sac. On the basis of these findings, a number of hypotheses on the development of anatomical variations of the caudal vena cava should be reconsidered. PMID:18537942

  15. Kirurgisk radikal resektion af leiomyosarkom i retrohepatiske vena cava med intrakardial tumortrombosering

    DEFF Research Database (Denmark)

    Arendrup, Henrik C; Larsen, Peter Nørgaard; Rasmussen, Allan; Pedersen, Christian Ross

    2005-01-01

    1 x 1 cm in the wall of the vena cava while the intracaval tumour was 12 cm long with a diameter of 5 cm and 1.5 cm in the right atrium. Using venovenous bypass with circulatory support, the tumour was excised in toto and the caval vein closed with a pericardial patch. The patient was discharged in...

  16. Acute superior vena caval syndrome with airway obstruction following elective mediastinoscopy.

    LENUS (Irish Health Repository)

    Power, C K

    2012-02-03

    A 47-year-old female patient had a subclinical superior vena caval syndrome which developed into the \\'full blown\\' acute condition when she was placed into the left lateral position after mediastinoscopy. She developed airway obstruction requiring urgent re-intubation and subsequent admission to the intensive care unit. This subclinical condition might have been suspected pre-operatively if closer attention had been paid to the history, physical examination and review of the computerised axial tomography scan: she had a history of intermittent dysponea, wheeze and cough which was worse on waking and improved as the day progressed, she had a positive Pemberton\\'s sign and the computerised axial tomography scan showed that the lesion was encroaching on the superior vena cava.

  17. Contabilidad Financiera Superior

    OpenAIRE

    Ipiñazar Petralanda, Izaskun

    2013-01-01

    Duración (en horas): De 31 a 40 horas. Destinatario: Estudiante y Docente A través de este material se presentan las pautas necesarias para implementar un aprendizaje basado en problemas en la asignatura de Contabilidad Financiera Superior dentro de los temas “Constitución de S.A. y S.R.L.” (Tema 2), “Ampliaciones de Capital” (Tema 3) y “Reducciones de Capital” (Tema 4). En primer lugar se presentan las guías generales de la asignatura, y a continuación, las diferentes activida...

  18. Rare case of primary inferior vena cava leiomyosarcoma on F-18 fluorodeoxyglucose positron emission tomography-computed tomography scan: Differentiation from nontumor thrombus in a background of procoagulant state

    International Nuclear Information System (INIS)

    We report a rare case of leiomyosarcoma of the inferior vena cava (IVC) in which F-18 fluorodeoxyglucose (F-18 FDG) positron emission tomography-computed tomography (PET-CT) scan provided vital evidence, which led to its diagnosis, in a background of procoagulant state of the patient, where previous ultrasound-Doppler and echocardiography studies were nonspecific and revealed bilateral lower limb deep vein thrombosis with thrombus in IVC. The whole body F-18 FDG PET-CT scan was done in view of no significant improvement in clinical status of the patient over few months in spite of appropriate medical management. FDG PET-CT scan revealed high grade uptake in a large mass lesion occupying the right atrium, extending superiorly into terminal superior vena cava, inferiorly into dilated IVC and probably into hepatic veins. CT guided biopsy of this F-18 FDG avid mass was consistent with the diagnosis of leiomyosarcoma, which however was not amenable to surgery at this stage. F-18 FDG PET-CT accurately differentiated tumor mass from bland thrombus and further had a significant impact on the management, since aggressive surgery combined with adjuvant therapy offers the best outcome for patients with leiomyosarcoma of the IVC

  19. ¿Después del radicalismo la sensatez? El giro a la izquierda y la política económica en América Latina

    Directory of Open Access Journals (Sweden)

    Jorge Lazo Cividanes

    2008-01-01

    Full Text Available Este trabajo analiza el impacto que ha tenido el surgimiento de gobiernos de izquierda en América Latina en las políticas económicas que se aplican en la región. El artículo presenta y discute datos sociales y económicos de Argentina, Brasil, Chile y Venezuela, países donde la izquierda controla el gobierno, y dos casos contrastantes, Colombia y México, cuyos gobiernos están en manos de partidos de centro-derecha. Tomando como referencia aspectos centrales de las reformas estructurales de la década de los 90, nuestro análisis sugiere que los nuevos gobiernos de izquierda no han transformado la política económica de manera substancial, lo cual se contradice con la fuerte retórica antineoliberal que ha caracterizado a muchos de sus líderes durante las campañas electorales. En este sentido, el artículo finaliza con algunas hipótesis que podrían explicar tal comportamiento.

  20. Pseudo-aneurisma post-traumático de tronco de arteria coronaria izquierda Post-traumatic false (pseudo aneurysm of the left main coronary artery

    Directory of Open Access Journals (Sweden)

    Melina M. Gallo

    2011-08-01

    Full Text Available El pseudo-aneurisma de arteria coronaria es extremadamente raro. Su historia natural es poco conocida y su tratamiento discutido. Se presenta el caso de un paciente con pseudo-aneurisma de tronco de la coronaria izquierda e infarto antero-apical del ventrículo izquierdo cinco años después de un paro cardíaco secundario a un traumatismo no penetrante de tórax. Se consideró entonces que la lesión no era pasible de corrección percutánea o quirúrgica por lo que se optó por tratamiento médico conservador. Una angiografía coronaria por tomografía computarizada multicorte realizada 10 años después del evento inicial mostró ausencia de progresión de la lesión.Coronary pseudo-aneurysm is an extremely rare entity. Its natural history is scarcely known and its treatment is controversial. We report a case of pseudo-aneurysm of the left main coronary artery associated with an antero-apical infarct of the left ventricle diagnosed five years after a cardiac arrest following a non-penetrating thoracic trauma. The patient was treated conservatively because percutaneous or surgical correction were not considered suitable for this lesion. A multidetector computed tomography coronary angiogram performed 10 years after the initial event showed no evidence of progression.

  1. Long-term follow-up of protection efficacy of vena cava filters in the prevention of pulmonary embolism

    International Nuclear Information System (INIS)

    Objective: To analyze the protection efficacy of the vena cava filter from pulmonary thromboembolism and report the problems and complications after filter placement. Methods: Fifty-five Vena Tech-LGM filters (VTF) and 6 Titanium-Greenfield filters (TGF) were placed in 61 patients. Follow-up was obtained by means of duplex sonography of the inferior vena cava and abdominal radiography in 38 patients, and by means of computed tomography in 11 patients. Results: One case of pulmonary embolism was seen following filter placement. Filter thrombosis occurred in 9 cases. There had been 1 case of incomplete filter opening and one case of filter tilting. Filter migration was noted in 1 case. Conclusion: This experience suggests that vena cava filter is safe and effective for the prevention of pulmonary embolism. A vena cava filter should only be inserted in a patient when there is strict proof of the indication

  2. Percutaneous transfemoral placement of inferior vena cava filter to prevent pulmonary embolism in patients with malignant tumor

    International Nuclear Information System (INIS)

    Objective: To evaluate the effectiveness and safety of inserting an inferior vena cava filter to prevent the pulmonary embolism (PE) due to detachment of the thrombus in the lower extremities. Methods: Inferior vena cava filter were placed in 37 patients with malignant tumor and deep venous thrombosis from 1998 to 2004. Malignancy was confirmed by pathological or cellular biological examination in all cases. The episode of pulmonary embolism was monitored during a post-intervention follow-up. Results: All the filters were placed in the inferior vena cava safely via a percutaneous femoral venous access. No serious complications such as pulmonary embolism occurred during the follow-up periods. Conclusion: The inferior vena cava filter placement is an effective and safe procedure in preventing the pulmonary embolism in patients with malignant tumor and deep venous thrombosis. (authors)

  3. Estimation of Right Atrial Pressure from the Inspiratory Collapse of the Inferior Vena cava in Pediatric Patients

    OpenAIRE

    Gholamhossein Ajami; Khobiar Zare; Hamid Amoozgar; Mohammad Borzoee; Saeed Abtahi

    2010-01-01

    Objective: Paucity of data exists between mean right atrial pressure (RAP) and inferior vena cava (IVC) size and collapsibility in pediatric patients with congenital heart disease.Methods: In a prospective study, fifty consecutive pediatric patients with different congenital heart diseases who had right side cardiac catheterization were studied, comparing right atrial pressure with simultaneous M-mode echocardiographic measurement of inferior vena cava diameter. Mean age of the patients was 4...

  4. Ultrasonographic assessment of inferior vena cava/abdominal aorta diameter index: a new approach of assessing hypovolemic shock class 1

    OpenAIRE

    Rahman, Nik Hisamuddin NA; Ahmad, Rashidi; Kareem, Meera Mohaideen; Mohammed, Mohammad Iqhbal

    2016-01-01

    Background We designed this study to expand the usage of ultrasound to detect early occurrence of hypovolemia. We explore the potential use of inferior vena cava (IVC) and abdominal aorta (AA) diameter index (IVC:AA) measured ultrasonographically to detect class 1 hypovolemic shock with blood loss less than 15%.ᅟ Methods The aim of this study was to determine the changes in the diameter of inferior vena cava and abdominal aorta in blood donors by using ultrasound, pre and post blood donation....

  5. Fístula axilo-cava para hemodiálise: relato de caso Axillary arteriovenous fistula for hemodialysis: case report

    Directory of Open Access Journals (Sweden)

    Yosio Nagato

    2009-12-01

    Full Text Available Na confecção de fístula arteriovenosa (FAV para hemodiálise, condutos venosos autógenos demonstram performance superior quando comparados com material protético em relação à perviedade primária ou secundária. A prótese de politetrafluoroetileno (PTFE é reservada para casos de falência de material autógeno e é geralmente utilizada em fístulas em membros superiores. Descrevemos o caso de uma paciente de 52 anos que, após falência de acessos para hemodiálise e impossibilidade de realização de diálise peritoneal em razão de peritonite bacteriana, foi submetida à confecção de FAV entre a artéria axilar direita e a veia cava inferior com prótese de PTFE de 6 mm. O acesso foi utilizado para hemodiálise 1 mês após sua criação e permanece pérvio após 24 meses. Até o momento, não houve complicações infecciosas, sinais de insuficiência cardíaca ou síndrome de roubo em membro superior direito.With regards to the creation of an arteriovenous fistula (AV fistula for hemodialysis, autogenous venous grafts clearly show high performance when compared with prosthetic material in terms of primary or secondary patency. Polytetrafluoroethylene (PTFE grafts for the reconstruction of AV fistulae must be restricted to cases of failure of the autogenous material, which is generally used in upper limb fistulae. We describe a case of a 52-year-old patient, who, after access failure for hemodialysis and the impossibility of performing peritoneal dialysis due to bacterial peritonitis, underwent the reconstruction of an AV fistula between the right axillary artery and the cava vein using a 6-mm PTFE prosthesis. One month after surgery, this AV fistula started to be used for hemodialysis. The AV fistula remains patent 24 months after its creation. No infectious complications, cardiac insufficiency symptoms, or steal syndromes of right upper limb were detected.

  6. Superior Lens Coloboma with Superior Rectus Palsy and Congenital Ptosis

    OpenAIRE

    Jethani, Jitendra; Vishal R. Sharma; Marwah, Kenshuk

    2009-01-01

    A lens coloboma is characterized by the lens tissue's notching at the equator. It is usually inferior-nasal else it is called an atypical coloboma. We report a young male who presented with a superior lens coloboma, an elevation deficit and moderate ptosis, left eye. As superior rectus and levator muscles are derived from the neural crest cell we propose, genetically, there may be an association between the lens coloboma and the superior rectus/levator muscle underaction via an anomalous home...

  7. Congenital inferior vena cava anomalies: a review of findings at multidetector computed tomography and magnetic resonance imaging

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Catherine; Trad, Clovis Simao [Central de Diagnostico Ribeirao Preto (CEDIRP), SP (Brazil); Trad, Henrique Simao, E-mail: hstrad@terra.com.br [Central de Diagnostico Ribeirao Preto (CEDIRP), SP (Brazil); Universidade de Sao Paulo (HC-FMRPUSP), Ribeirao Preto, SP (Brazil). Fac. de Medicina. Hospital das Clinicas; Mendonca, Silvana Machado [Clinica de Diagnostico por Imagem (CDPI), Rio de Janeiro, RJ (Brazil)

    2013-06-15

    Inferior vena cava anomalies are rare, occurring in up to 8.7% of the population, as left renal vein anomalies are considered. The inferior vena cava develops from the sixth to the eighth gestational weeks, originating from three paired embryonic veins, namely the subcardinal, supracardinal and postcardinal veins. This complex ontogenesis of the inferior vena cava, with multiple anastomoses between the pairs of embryonic veins, leads to a number of anatomic variations in the venous return from the abdomen and lower limbs. Some of such variations have significant clinical and surgical implications related to other cardiovascular anomalies and in some cases associated with venous thrombosis of lower limbs, particularly in young adults. The authors reviewed images of ten patients with inferior vena cava anomalies, three of them with deep venous thrombosis. The authors highlight the major findings of inferior vena cava anomalies at multidetector computed tomography and magnetic resonance imaging, correlating them the embryonic development and demonstrating the main alternative pathways for venous drainage. The knowledge on the inferior vena cava anomalies is critical in the assessment of abdominal images to avoid misdiagnosis and to indicate the possibility of associated anomalies, besides clinical and surgical implications. (author)

  8. [Bilateral deep venous thrombosis and vena cava aplasia treated with local thrombolysis

    DEFF Research Database (Denmark)

    Pelta, A.M.; Jørgensen, Maja; Just, Sven Richardt Lundgren; Jensen, Leif Pandora

    2008-01-01

    In this case report the treatment of a young man with bilateral iliaco-femoral DVT and vena cava aplasia is presented. The patient was treated with catheter-directed thrombolysis; the catheters were introduced in the thrombus of both legs via v. popliteae. The treatment led to almost complete thr...... thrombus resolution and no valvular incompetence at three months follow-up. In our opinion this treatment should be offered even in complex cases of acute proximal deep venous thrombosis Udgivelsesdato: 2008/5/19......In this case report the treatment of a young man with bilateral iliaco-femoral DVT and vena cava aplasia is presented. The patient was treated with catheter-directed thrombolysis; the catheters were introduced in the thrombus of both legs via v. popliteae. The treatment led to almost complete...

  9. Fat collections related to the intrahepatic inferior vena cava: CT features

    International Nuclear Information System (INIS)

    Purpose: To evaluate fat collections related to inferior vena cava, their causes, and to make a review of the literature about these benign incidental findings. Materials and Methods: Two thousands and one hundred thoracoabdominal CT scans were performed between May 2000 and March 2001. We used a PQ 5000 spiral CT scanner. The studies were performed with and without contrast media. Results: We found three cases of fat collections related to inferior vena cava (IVC). They were located posteromedial and anteromedial to IVC. Conclusion: Fat collections related to the IVC are benign incidental findings. The knowledge with regards to these findings should preclude erroneous diagnosis of intracaval thrombus, intracaval lipomas or secondary extensions of tumors. (author)

  10. Agenesis of Ductus Venosus Presenting with Dilated Inferior Vena Cava with Favorable Outcome

    Directory of Open Access Journals (Sweden)

    Omer Dai

    2014-04-01

    Full Text Available The ductus venosus regulates the distribution of oxygen and placental nutrients by restricting the centralization of blood flow in fetal circulation. The ductus venosus is a small vein transmitting oxygen-rich blood from the umbilical vein to the fetal heart.. Increasing numbers of case reports are being published about ductus venosus agenesis with cardiac structural abnormalities, other malformations, chromosomal abnormalities, and stillbirth. Heart failure, hydrops and unexplained polyhydramnios could also be associated with ductus venosus agenesis. In the follow-up of fetuses with ductus venosus agenesis, care must be taken to examine for hydrops and heart failure. The agenesis of ductus venosus is often only found in fetuses by coincidentally. Herein we discuss the prenatal diagnosis of isolated agenesis of the ductus venosus presenting with a dilated inferior vena cava and without any disturbance of fetal hemodynamics and any other malformation. In conclusion a dilated inferior vena cava can be a sign of ductus venosus agenesia.

  11. The CAVA corpus: synchronised stereoscopic and binaural datasets with head movements

    OpenAIRE

    Arnaud, Elise; Christensen, Heidi; Lu, Yan-Chen; Barker, Jon; Khalidov, Vasil; Hansard, Miles; Holveck, Bertrand; Mathieu, Herve; Narasimha, Ramya; Taillant, Elise; Forbes, Florence; Horaud, Radu

    2008-01-01

    International audience This paper describes the acquisition and content of a new multi-modal database. Some tools for making use of the data streams are also presented. The Computational Audio- Visual Analysis (CAVA) database is a unique collection of three synchronised data streams obtained from a binaural microphone pair, a stereoscopic camera pair and a head tracking device. All recordings are made from the perspective of a person; i.e. what would a human with natural head movements see...

  12. Bullet embolisation from injured inferior cava vein to the right ventricle

    OpenAIRE

    Zenelaj, A; M Brati; Kerci, M

    2010-01-01

    Gunshot injuries of the human body challenge surgical teams in the emergency department. Since such injuries do not follow any rule, every patient should be considered a special case. Our case, of bullet embolism from injured inferior cava vein to the right heart ventricle is a rare one. Such cases make us be more alert for diagnosis and treatment of this kind of injury. Well equipped hospitals and experienced medical teams are necessary for successful outcome.

  13. A sulfated polysaccharide of Ecklonia cava inhibits the growth of colon cancer cells by inducing apoptosis

    OpenAIRE

    Ahna, Ginnae; Lee, WonWoo; Kim, Kil-Nam; Lee, Ji-Hyeok; Heo, Soo-Jin; Kang, Nalae; Lee, Seung-Hong; Ahnf, Chang-Bum; Jeon, You-Jin

    2015-01-01

    We investigated anticancer effects of the crude polysaccharides (CPs) isolated from Ecklonia cava enzymatic extracts using AMG, Viscozyme, Protamex, and Alcalase enzyme against a colon cancer cell line, CT26 cells. Among them, the CP of Protamex extract (PCP) contained the highest fucose and sulfated group contents and showed the highest growth inhibitory effect against CT-26 cells. In addition, PCP dose-dependently increased the formation of apoptotic body and the percentage of Sub-G1 DNA co...

  14. Ecklonia cava Inhibits Glucose Absorption and Stimulates Insulin Secretion in Streptozotocin-Induced Diabetic Mice

    OpenAIRE

    Hye Kyung Kim

    2012-01-01

    Aims of study. Present study investigated the effect of Ecklonia cava (EC) on intestinal glucose uptake and insulin secretion. Materials and methods. Intestinal Na+-dependent glucose uptake (SGU) and Na+-dependent glucose transporter 1 (SGLT1) protein expression was determined using brush border membrane vesicles (BBMVs). Glucose-induced insulin secretion was examined in pancreatic β-islet cells. The antihyperglycemic effects of EC, SGU, and SGLT1 expression were determined in streptozotocin ...

  15. Cement Embolus Trapped in the Inferior Vena Cava Filter during Percutaneous Vertebroplasty

    OpenAIRE

    Li, Zhi; Ni, Rui-fang; Zhao, Xin; Yang, Chao; Li, Ming-Ming

    2013-01-01

    A 58-year-old female patient, diagnosed with adenocarcinoma of the lung, underwent percutaneous vertebroplasty at the L4 vertebral body due to painful spinal metastases. Because of deep venous thrombosis of the left femoral and iliac veins, an inferior vena cava filter had been placed before vertebroplasty. Bone cement migrated into the venous bloodstream and then was being trapped within the previously placed filter. This case illustrates that caval filter could capture the bone cement and p...

  16. Corylucinine, a new Alkaloid from Corydalis cava (Fumariaceae), and its Cholinesterase Activity

    Czech Academy of Sciences Publication Activity Database

    Novák, Z.; Chlebek, J.; Opletal, L.; Jiroš, Pavel; Macáková, K.; Kuneš, J.; Cahlíková, L.

    2012-01-01

    Roč. 7, č. 7 (2012), s. 859-860. ISSN 1934-578X Grant ostatní: SVV UK(CZ) 265002; SVV UK(CZ) 265001; FRVŠ(CZ) 664/2011; UNCE UK(CZ) 17/2012/ Institutional research plan: CEZ:AV0Z40550506 Keywords : Corydalis cava * corylucinine * 8-trichloromethyl-7,8-dihydropalmatine * acetylcholinesterase * butyrylcholinesterase * Alzheimer's disease Subject RIV: CC - Organic Chemistry Impact factor: 0.956, year: 2012

  17. Dilated coronary sinus in a dog with persistent left cranial vena cava

    International Nuclear Information System (INIS)

    This paper describes the electrocardiographic, echocardiographic (two-dimensional, M-mode, contrast and Doppler) and non-selective angiocardiographic features in a 3 year old female Beagle with dilated coronary sinus due to persistent left cranial vena cava. Negative P waves in leads III and aVR and a positive P wave in lead aVL were seen, Echocardiographically, a hipoechoic circular structure was seen between the left atrium and the pericardium in the area where the coronary sinus islocated, A velocity pattern with two peaks was obtained, one systolicwith velocity = 0.44 +/- 0.05 m/sec and the other diastolic with velocity = 0.27 +/- 0.01 m/sec, By M-mode echocardiography, at level of the aorta and the left atrium, a linear structure was identified betweenthe left atrium and the pericardium; this structure was characterizedby phasic movements of the anterior wall during the cardiac cycle, Following a left cephalic vein injection of saline, bubbles were seen within the coronary sinus; when saline was injected into the right cephalic vein, bubbles were also seen within the coronary sinus and right atrium and ventricle, Non-selective angiocardiography confirmed a dilated coronary sinus with persistent left cranial vena cava, The right cranial vena cava was absent, The dog was clinically normal and the unusual vessel was an incidental finding

  18. Safety and Efficacy of the Gunther Tulip Retrievable Vena Cava Filter: Midterm Outcomes

    Energy Technology Data Exchange (ETDEWEB)

    Hoffer, Eric K., E-mail: eric.k.hoffer@hitchcock.org; Mueller, Rebecca J.; Luciano, Marcus R.; Lee, Nicole N.; Michaels, Anne T.; Gemery, John M. [Dartmouth-Hitchcock Medical Center, Department of Radiology, Section of Vascular and Interventional Radiology (United States)

    2013-08-01

    PurposeTo evaluate of the medium-term integrity, efficacy, and complication rate associated with the Gunther Tulip vena cava filter.MethodsA retrospective study was performed of 369 consecutive patients who had infrarenal Gunther Tulip inferior vena cava filters placed over a 5-year period. The mean patient age was 61.8 years, and 59 % were men. Venous thromboembolic disease and a contraindication to or complication of anticoagulation were the indications for filter placement in 86 % of patients; 14 % were placed for prophylaxis in patients with a mean of 2.3 risk factors. Follow-up was obtained by review of medical and radiologic records.ResultsMean clinical follow-up was 780 days. New or recurrent pulmonary embolus occurred in 12 patients (3.3 %). New or recurrent deep-vein thrombosis occurred in 53 patients (14.4 %). There were no symptomatic fractures, migrations, or caval perforations. Imaging follow-up in 287 patients (77.8 %) at a mean of 731 days revealed a single (0.3 %) asymptomatic fracture, migration greater than 2 cm in 36 patients (12.5 %), and no case of embolization. Of 122 patients with CT scans, asymptomatic perforations were identified in 53 patients (43.4 %) at a mean 757 days.ConclusionThe Gunther Tulip filter was safe and effective at 2-year follow-up. Complication rates were similar to those reported for permanent inferior vena cava filters.

  19. Safety and Efficacy of the Gunther Tulip Retrievable Vena Cava Filter: Midterm Outcomes

    International Nuclear Information System (INIS)

    PurposeTo evaluate of the medium-term integrity, efficacy, and complication rate associated with the Gunther Tulip vena cava filter.MethodsA retrospective study was performed of 369 consecutive patients who had infrarenal Gunther Tulip inferior vena cava filters placed over a 5-year period. The mean patient age was 61.8 years, and 59 % were men. Venous thromboembolic disease and a contraindication to or complication of anticoagulation were the indications for filter placement in 86 % of patients; 14 % were placed for prophylaxis in patients with a mean of 2.3 risk factors. Follow-up was obtained by review of medical and radiologic records.ResultsMean clinical follow-up was 780 days. New or recurrent pulmonary embolus occurred in 12 patients (3.3 %). New or recurrent deep-vein thrombosis occurred in 53 patients (14.4 %). There were no symptomatic fractures, migrations, or caval perforations. Imaging follow-up in 287 patients (77.8 %) at a mean of 731 days revealed a single (0.3 %) asymptomatic fracture, migration greater than 2 cm in 36 patients (12.5 %), and no case of embolization. Of 122 patients with CT scans, asymptomatic perforations were identified in 53 patients (43.4 %) at a mean 757 days.ConclusionThe Gunther Tulip filter was safe and effective at 2-year follow-up. Complication rates were similar to those reported for permanent inferior vena cava filters

  20. Leiomyosarcoma of the inferior vena cava level II involvement: curative resection and reconstruction of renal veins

    Directory of Open Access Journals (Sweden)

    Wang Quan

    2012-06-01

    Full Text Available Abstract Leiomyosarcoma of the inferior vena cava (IVCL is a rare retroperitoneal tumor. We report two cases of level II (middle level, renal veins to hepatic veins IVCL, who underwent en bloc resection with reconstruction of bilateral or left renal venous return using prosthetic grafts. In our cases, IVCL is documented to be occluded preoperatively, therefore, radical resection of tumor and/or right kidney was performed and the distal end of inferior vena cava was resected and without caval reconstruction. None of the patients developed edema or acute renal failure postoperatively. After surgical resection, adjuvant radiation therapy was administrated. The patients have been free of recurrence 2 years and 3 months, 9 months after surgery, respectively, indicating the complete surgical resection and radiotherapy contribute to the better survival. The reconstruction of inferior vena cava was not considered mandatory in level II IVCL, if the retroperitoneal venous collateral pathways have been established. In addition to the curative resection of IVCL, the renal vascular reconstruction minimized the risks of procedure-related acute renal failure, and was more physiologically preferable. This concept was reflected in the treatment of the two patients reported on.

  1. ANGIOPLASTIA PERCUTÁNEA CON STENT EN EL TRONCO PRINCIPAL DE LA ARTERIA CORONARIA IZQUIERDA / Percutaneous angioplasty with stent in the left main coronary artery

    Directory of Open Access Journals (Sweden)

    Javier Almeida Gómez

    2012-10-01

    Full Text Available ResumenIntroducción y objetivos: La afectación significativa del tronco común izquierdo, es la más letal de las presentaciones de la enfermedad arterial coronaria. El tratamiento de elección, es la cirugía de derivación aorto-coronaria. En varios estudios multicéntricos, se sugiere la posibilidad de tratar la enfermedad de tronco mediante el intervencionismo coronario percutáneo con implantación de prótesis endoluminal o stent. El objetivo de esta investigación fue caracterizar la angioplastia percutánea con stent en el tronco principal de la arteria coronaria izquierda. Método: Se realizó un estudio observacional, descriptivo y transversal en 21 pacientes con angioplastia percutánea con stent en el tronco principal de la arteria coronaria izquierda, realizadas en el laboratorio de Hemodinámica y Cardiología Intervencionista del Hospital "Hermanos Ameijeiras", entre enero 2010 y julio 2011. Resultados: No existió diferencia significativa en el sexo. Predominó el grupo de edad entre 50-64 años (47,6 % y el color de la piel blanca (76,19 %. El factor de riesgo cardiovascular más encontrado fue la HTA (85,71 %, seguido de dislipidemia (47,61 %. El diagnóstico más observado fue la angina de esfuerzo estable, 14 casos (66,66 %. La lesión en el cuerpo del tronco (12 pacientes, 57,1 %, fue la más encontrada, seguida de la ostial (8 casos. El tipo de stent más utilizado fue el liberador de fármacos (61,9 %, y solamente 4 pacientes presentaban troncos protegidos quirúrgicamente. Conclusiones: La mayor cantidad de casos fueron electivos, con predominio de los troncos no protegidos. El factor de riesgo coronario más encontrado fue la HTA. Se encontró asociación significativa entre la diabetes mellitus y la localización ostial de la lesión tratada. / AbstractIntroduction and Objectives: Significant impairment of the left main coronary artery is the most lethal presentation of coronary artery disease. The treatment of choice

  2. EVALUACIÓN ECOCARDIOGRÁFICA DE LA FUNCIÓN VENTRICULAR IZQUIERDA EN CENTENARIOS / Echocardiographic assessment of left ventricular function in centenarians

    Directory of Open Access Journals (Sweden)

    Vanessa Peña-Bofill

    2013-10-01

    Full Text Available Resumen Introducción: El envejecimiento poblacional es un fenómeno mundial y constituye un logro de la humanidad. Objetivo: Caracterizar ecocardiográficamente la función ventricular izquierda de pacientes ambulatorios mayores de 100 años del municipio Plaza de la Revolución, en el período de septiembre del 2009 a septiembre del 2010. Método: Se realizó un estudio descriptivo de corte transversal con 20 longevos, en el Departamento de Ecocardiografía del Hospital Universitario "General Calixto García", a los cuáles se les realizó ecocardiograma para evaluar la función ventricular izquierda. Resultados: La edad media fue de 102 años, predominó el sexo femenino con 15 pacientes (75 % y el 50 % tenía color de piel blanco. El factor de riesgo coronario de mayor prevalencia fue la hipertensión arterial (40 %; la diabetes mellitus tipo 2, el tabaquismo y la dislipidemia le sucedieron en orden. Los centenarios tenían conservada la función sistólica del ventrículo izquierdo (90 % con poca tendencia a la supernormalidad, una paciente presentó trastornos segmentarios de la contractilidad en cara inferior, lo que correspondía a antecedentes de infarto de miocardio. Cuatro centenarios tenían patrón de llenado normal, 11 presentaron alteración de la relajación ventricular y cinco patrones pseudonormales. Conclusiones: En los centenarios estudiados se mantiene una función sistólica del ventrículo izquierdo evaluada por ecocardiografía, dentro de parámetros normales, con signos de disfunción diastólica leve. / Abstract Introduction: Population aging is a global phenomenon and an achievement of mankind. Objective: To characterize left ventricular function by echocardiography in ambulatory patients over 100 years old in Plaza de la Revolution Municipality, between September 2009 and September 2010. Method: A descriptive cross-sectional study was carried out with 20 long-lived people, in the Department of Echocardiography of

  3. Las invasiones de tierras y la izquierda en la ciudad: Montevideo, Uruguay, 1984-2011 Squatter Settlements and the Left in the City: Montevideo, Uruguay, 1984-2011

    Directory of Open Access Journals (Sweden)

    MARÍA JOSÉ ALVAREZ RIVADULLA

    2012-01-01

    Full Text Available En la última década del siglo XX la ciudad de Montevideo sufrió cambios drásticos. El número de barrios informales creció como nunca en la historia de la ciudad. Muchos de esos barrios se formaron a partir de invasiones organizadas, es decir, mediante un proceso en el que un grupo identificó un terreno disponible, lo invadió, trazó calles y lotes, negoció con las autoridades y se organizó para demandar servicios públicos. Este artículo se pregunta qué explica la ola de invasiones de tierra planificadas en torno a 1990 en Montevideo. A partir de análisis cuantitativo y cualitativo de eventos de invasión a través del tiempo, argumenta que el aumento de la competencia electoral y la llegada de la coalición de izquierda Frente Amplio al gobierno de la ciudad, constituyeron una oportunidad política clave para los pobres urbanos.The city of Montevideo changed drastically during the last decade of the twentieth century. The number of informal neighborhoods increased in an unprecedented manner. Many of these neighborhoods started as organized land invasions, that is, with a group identifying a piece of land, invading it, outlining streets and plots, negotiating with authorities and organizing to demand public services. This article asks what explains the wave of organized land invasions in Montevideo around 1990. Using qualitative and quantitative analysis of squatting events over time, it argues that the rising electoral competition and the arrival of the leftist coalition Frente Amplio to the city government, constituted a key political opportunity for the urban poor.

  4. Sobre viejas y nuevas izquierdas. Los jóvenes comunistas uruguayos y el movimiento estudiantil de 1968 On the Old and New Left. Young Uruguayan Communists and the 1968 Student Movement

    OpenAIRE

    Vania Markarian

    2011-01-01

    Este trabajo se centra en la participación de los jóvenes comunistas uruguayos en el movimiento estudiantil de 1968 como parte de una generación de latinoamericanos que combinó una visión heroica de la militancia con la adopción de nuevas pautas culturales provenientes de Europa y Estados Unidos. Se analizan tanto las discusiones generadas en el seno de la izquierda sobre las "vías de la revolución" como el efecto de esas ideas y prácticas de circulación global en la conformación de identidad...

  5. El Partido de la Revolución Democrática en crisis: entre la dirigencia de la corriente Nueva Izquierda y la salida de Andrés Manuel López Obrador

    OpenAIRE

    Rosendo Bolívar Meza

    2014-01-01

    El autor señala que una vez concluido el proceso electoral de 2012, el Partido de la Revoluci ón Democrática entró en la peor de sus crisis internas de los 25 años que lleva de existencia. Esto se debe a la conducción realizada por su dirigencia nacional encabezada por la corriente Nueva Izquierda, a la cual, por la forma en que ha conducido al partido y las decisiones que ha tomado, se han opuesto varias de las corrientes que lo conforman. A esto se agrega la salida de Andrés Manuel López Ob...

  6. Comparison of superior vena caval and inferior vena caval access using a radioisotope technique during normal perfusion and cardiopulmonary resuscitation

    International Nuclear Information System (INIS)

    Recent studies of thoracic pressure changes during external cardiopulmonary resuscitation (CPR) suggest that there may be a significant difference in the rate of delivery of intravenous drugs when they are administered through the extrathoracic inferior vena cava (IVC) rather than the intrathoracic superior vena cava (SVC). Comparison of delivery of a radionuclide given using superior and inferior vena caval access sites was made during normal blood flow and during CPR. Mean times from injection to peak emission count in each ventricle were determined. There were no significant differences between mean peak times for SVC or IVC routes during normal flow or CPR. When peak times were corrected for variations in cardiac output, there were no significant differences between IVC and SVC peak times during normal flow. During CPR, however, mean left ventricular peak time, when corrected for cardiac output, was significantly shorter (P less than .05) when the SVC route was used. The mean time for the counts to reach half the ventricular peak was statistically shorter (P less than .05) in both ventricles with the SVC route during the low flow of CPR. This suggests that during CPR, increased drug dispersion may occur when drugs are infused by the IVC route and thus may modify the anticipated effect of the drug bolus. These results suggest that during CPR, both the cardiac output and the choice of venous access are important variables for drug delivery

  7. Dispersión del QRS como índice de disincronía en el bloqueo de rama izquierda y de sincronía tras la terapia de resincronización cardíaca, una variable de respuesta exitosa / QRS dispersion as an index of dyssynchrony in left bundle branch block and of

    OpenAIRE

    Elibet Chávez González; Alain Alonso Herrera; Raimundo Carmona Puerta; Damián Pérez Cabrera; Ramiro R Ramos Ramírez; Walker Gómez Paima; Francisco L Moreno-Martínez

    2015-01-01

    Introducción: En pacientes con insuficiencia cardíaca, el bloqueo de rama izquierda del haz de His constituye un importante marcador de mal pronóstico, en ellos la tera-pia de resincronización puede mejorar la función del ventrículo izquierdo. Objetivo: Describir variables electrocardiográficas asociadas a una mejor respuesta de la resincronización cardíaca. Método: Se estudiaron 19 pacientes, 7 mujeres y 12 hombres con bloqueo de rama izquierda y fracción de eyección ≤ 35 %. Se realizó elect...

  8. Acute iliofemoral venous thrombosis in patients with atresia of the inferior vena cava can be treated successfully with catheter-directed thrombolysis

    DEFF Research Database (Denmark)

    Broholm, Rikke; Jørgensen, Maja; Just, Sven; Jensen, Leif P; Bækgaard, Niels

    2011-01-01

    To assess the effectiveness and clinical outcomes of catheter-directed thrombolysis in patients with atresia of the inferior vena cava (IVC) and acute iliofemoral deep vein thrombosis (DVT).......To assess the effectiveness and clinical outcomes of catheter-directed thrombolysis in patients with atresia of the inferior vena cava (IVC) and acute iliofemoral deep vein thrombosis (DVT)....

  9. Clinically asymptomatic thrombosis of the inferior vena cava as an incidental finding by sonography after surgical treatment of a tumor in the mediastinum

    International Nuclear Information System (INIS)

    In the case of suspected thrombosis of the venia cava caudalis, ultrasonography, CT and NMR imaging are excellent diagnostic tools. For a diagnostic scanning of the collateral vene, phlebography of the inferior vena cava is the method yielding the most significant results. (orig.)

  10. Repair of the inferior vena cava with autogenous peritoneo-fascial patch graft following abdominal trauma: a case report.

    Science.gov (United States)

    Emmiler, Mustafa; Kocogullari, Cevdet Ugur; Yilmaz, Sezgin; Cekirdekci, Ahmet

    2008-01-01

    Abdominal vascular injuries are among the most challenging and lethal injuries in traumatized patients. Inferior vena cava is the most frequently injured vein during the blunt or penetrating trauma. The primary repair, end to end anastomosis, endovascular stenting, or graft interposition with autogenous or synthetic materials should be considered in selected cases. However, in cases the synthetic graft was preferred, intestinal contaminations due to small or large bowel perforation accompanying the trauma have been cited as a limiting factor for the use of such grafts as in the current case. However, a previous history of lower leg variceal surgery prevents the use of great saphenous vein as a graft. So in the present case, the authors report a patient with inferior vena cava injury repaired with autogenous peritoneo-fascial graft. The authors have used APF graft in traumatic inferior vena cava injury for the first time. PMID:18667465

  11. On-and offshore tephrostratigraphy and -chronology of the southern Central American Volcanic Arc (CAVA)

    Science.gov (United States)

    Schindlbeck, J. C.; Kutterolf, S.; Hemming, S. R.; Wang, K. L.

    2015-12-01

    Including the recently drilled CRISP sites (IODP Exp. 334&344) the deep sea drilling programs have produced 69 drill holes at 29 Sites during 9 Legs at the Central American convergent margin, where the Cocos plate subducts beneath the Caribbean plate. The CAVA produced numerous plinian eruptions in the past. Although abundant in the marine sediments, information and data regarding large late Cenozoic explosive eruptions from Costa Rica, Nicaragua, Honduras, El Salvador, and Guatemala remain very sparse and discontinuous on land. We have established a tephrostratigraphy from recent through Miocene times from the unique archive of ODP/IODP sites offshore Central America in which we identify tephra source regions by geochemical fingerprinting using major and trace element glass shard compositions. Here we present first order correlations of ­~500 tephra layers between multiple holes at a single site as well as between multiple sites. We identified ashes supporting Costa Rican (~130), Nicaraguan (17) and Guatemalan (27) sources as well as ~150 tephra layers from the Galápagos hotspot. Within our marine record we also identified well-known marker beds such as the Los Chocoyos tephra from Atitlán Caldera in Guatemala and the Tiribi Tuff from Costa Rica but also correlations to 15 distinct deposits from known Costa Rican and Nicaraguan eruptions within the last 4.1 Ma. These correlations, together with new radiometric age dates, provide the base for an improved tephrochronostratigraphy in this region. Finally, the new marine record of explosive volcanism offshore southern CAVA provides insights into the eruptive history of long-living volcanic complexes (e.g., Barva, Costa Rica) and into the distribution and frequency of large explosive eruptions from the Galápagos hotspot. The integrated approach of Ar/Ar age dating, correlations with on land deposits from CAVA, biostratigraphic ages and sediment accumulation rates improved the age models for the drilling sites.

  12. The Analysis of Postoperative Complications after Thrombectomy From Inferior Vena Cava in Renal Cell Carcinoma

    Directory of Open Access Journals (Sweden)

    Atduev V.A.

    2012-06-01

    Full Text Available The aim of the investigation is to analyze the results of thrombectomy from inferior vena cava in renal cell carcinoma to reveal the main prognostic factors of postoperative complications. Materials and Methods. Nephrectomy with thrombectomy from inferior vena cava was performed in 34 patients. Thrombus level Т3b was revealed in 27 patients (79.4% (thrombus length — 5.10±1.75 cm, Т3с — in 7 patients (20.6% (thrombus length — 14.80±0.98 см. Postoperative complications were analyzed according to Clavien–Dindo classification of surgical complications. Results. Blood loss volume in operation was on average 866 ml (250–4000 ml. 18 patients (52.9% had no complications. Two patients (5.9% had I degree complication (anemia. The II degree of complication was revealed in 11 patients (32.3%, after the operation they underwent blood transfusion. One patients (2.9% had IIIa degree of complications (after the operation he required pleural punctures and pericardium drainage under local anesthesia, and one patients had IIIв degree of complications (descending colon perforation — he underwent relaparotomy and colostomy. There were no IV degree complications. One patient (2.9% died (V degree from pulmonary embolism. Correlation analysis determined high (r=0.7 complications dependence of thrombus size and blood loss volume (r=0.6 and low dependence — of tumour size (r=0.44. There were revealed no complication dependence of patients age (r=0.1, status on Karnofsky scale (r=0.0. All 33 patients discharged from hospital had lived over 6 months after the operation. Conclusion. After nephrectomy with thrombectomy from inferior vena cava there is high risk of postoperative complications, the frequency and type of which to a greater degree depend on thrombus size and blood loss volume.

  13. Filtros de vena cava en pacientes con cáncer

    Directory of Open Access Journals (Sweden)

    Fernando A. Díaz Couselo

    2012-08-01

    Full Text Available Los pacientes con tromboembolismo venoso (TEV y cáncer tienen más complicaciones vinculadas al tratamiento anticoagulante que la población general. Los filtros de vena cava constituyen una herramienta útil para el tratamiento del TEV y su utilización es controvertida en estadios avanzados de la enfermedad. En este trabajo se revisaron las indicaciones, complicaciones y frecuencia de retiro de los filtros de vena cava en una población de pacientes oncológicos con TEV. Se analizaron 27 pacientes a quienes se les había colocado filtros de vena cava. Veinticinco tenían tumores sólidos y dos linfomas no Hodgkin. Veinticinco estaban bajo tratamiento activo (cirugía y/o quimioterapia. Diecinueve se hallaban en estadio IV de su enfermedad. El motivo de su indicación fue profilaxis en el período perioperatorio en 14 casos (51.9%, hemorragia (n = 5, trombocitopenia (n = 4, metástasis en sistema nervioso central (n = 2, accidente cerebrovascular (n = 1 y neurocirugía previa no reciente (n = 1. Se retiraron 8 (29.6% filtros. La mediana del tiempo de permanencia fue 21 días (6-75. No hubo diferencias estadísticamente significativas en la frecuencia de retiro entre los filtros colocados en el perioperatorio (6/14 y los colocados por otras contraindicaciones para la anticoagulación (2/13; p = 0.2087. No hubo fracasos ni complicaciones en los procedimientos de colocación y retiro.

  14. Bilateral dyb venos trombose og vena cava-aplasi behandlet med lokal trombolyse

    DEFF Research Database (Denmark)

    Pelta, A.M.; Jorgensen, M.; Jensen, L.P.; Just, Sven Richardt Lundgren

    2008-01-01

    In this case report the treatment of a young man with bilateral iliaco-femoral DVT and vena cava aplasia is presented. The patient was treated with catheter-directed thrombolysis; the catheters were introduced in the thrombus of both legs via v. popliteae. The treatment led to almost complete thr...... thrombus resolution and no valvular incompetence at three months follow-up. In our opinion this treatment should be offered even in complex cases of acute proximal deep venous thrombosis Udgivelsesdato: 2008/5/19...

  15. Residual Inferior Vena Cava Thrombus Detected by Transesophageal Echocardiography After Resection of a Malignant Adrenal Mass.

    Science.gov (United States)

    Burbano, Nelson H; Vlah, Claudene; Argalious, Maged

    2015-10-15

    A 43-year-old woman with a history of the Cushing syndrome secondary to adrenocortical carcinoma presented to the operating room for right adrenalectomy, hepatectomy, nephrectomy, and inferior vena cava (IVC) thrombectomy. Initial intraoperative transesophageal echocardiogram (TEE) confirmed the presence of an IVC tumor below the hepatic veins. Total vascular exclusion of the liver was necessary to perform the operation. A repeat TEE showed a residual thrombus within the IVC prompting an additional cavotomy to successfully remove the entire mass. The remainder of the procedure finalized uneventfully. The case highlights the importance of TEE monitoring for noncardiac surgery with thrombotic involvement of the IVC. PMID:26466307

  16. Cement embolus trapped in the inferior vena cava filter during percutaneous vertebroplasty

    Energy Technology Data Exchange (ETDEWEB)

    Li, Zhi; Ni, Rui Fang; Zhao, Xin; Yang, Chao; Li, Ming Ming [First Affiliated Hospital of Soochow University, Suzhou (China)

    2013-06-15

    A 58-year-old female patient, diagnosed with adenocarcinoma of the lung, underwent percutaneous vertebroplasty at the L4 vertebral body due to painful spinal metastases. Because of deep venous thrombosis of the left femoral and iliac veins, an inferior vena cava filter had been placed before vertebroplasty. Bone cement migrated into the venous bloodstream and then was being trapped within the previously placed filter. This case illustrates that caval filter could capture the bone cement and prevent it from migrating to the pulmonary circulation.

  17. Rectal cancer presenting tumor thrombosis in the inferior vena cava and common iliac vein: case report

    Energy Technology Data Exchange (ETDEWEB)

    Rhee, Sun Jung; Park, Seong Jin; Lee, Hae Kyung; Yi, Boem Ha; Park, Sung Il; Hong, Soo Jin; Kim, Hee Kyung; Park, Jeong Mi [Soonchunhyang University Hospital, Bucheon (Korea, Republic of)

    2008-10-15

    We report the radiologic findings of a rectal carcinoma case with tumor thrombus in the inferior vana cava and left common iliac vein of a 48-year-old woman. The patient complained of swelling in the left leg and consequently underwent a lymphoscintigraphy, CT venography, abdominal CT, PET-CT, pelvis MRI, and ultrasound doppler. The rectal cancer was determined via a colonoscopy. The tissue biopsy of tumor thrombus in the IVC was done during insertion of IVC filter and poorly differentiated adenocarcinoma was revealed by pathology.

  18. Cement embolus trapped in the inferior vena cava filter during percutaneous vertebroplasty

    International Nuclear Information System (INIS)

    A 58-year-old female patient, diagnosed with adenocarcinoma of the lung, underwent percutaneous vertebroplasty at the L4 vertebral body due to painful spinal metastases. Because of deep venous thrombosis of the left femoral and iliac veins, an inferior vena cava filter had been placed before vertebroplasty. Bone cement migrated into the venous bloodstream and then was being trapped within the previously placed filter. This case illustrates that caval filter could capture the bone cement and prevent it from migrating to the pulmonary circulation.

  19. Leiomyosarcoma of the Inferior Vena Cava Confirmed by Aspiration Biopsy With a Catheter During Digital Subtraction Angiography.

    Science.gov (United States)

    Yakupoglu, Abdullah; Ulus, Sila; Cantasdemir, Murat

    2016-04-01

    Leiomyosarcoma of the vascular origin is a rare malignant tumor. It originates from the smooth muscle cells of the media with intra- or extraluminal growth, and in most cases it arises in the inferior vena cava. The diagnosis is often delayed because the clinical symptoms of this disease are often nonspecific. Accurate diagnosis of inferior vena cava leiomyosarcoma (IVCLMS) needs histologic confirmation. We report a case of IVCLMS histologically confirmed by aspiration biopsy with a catheter during digital subtraction angiography presenting with pulmonary emboli in a 65-year-old man. PMID:27000390

  20. Relationship between encephalopathy and portal vein-vena cava shunt:Value of computed tomography during arterial portography

    Institute of Scientific and Technical Information of China (English)

    Qian Chu; Zhen Li; Su-Ming Zhang; Dao-Yu Hu; Ming Xiao

    2004-01-01

    AIM: To assess the value of computed tomography during arterial portography (CTAP) in portal vein-vena cava shunt,and analysis of the episode risk in encephalopathy.METHODS: Twenty-nine patients with portal-systemic encephalopathy due to portal hypertension were classified by West Haven method into grade Ⅰ(29 cases), gradeⅡ(16 cases), grade Ⅲ(10 cases), grade Ⅳ( 4 cases). All the patients were scanned by spiral-CT. Plane scans, artery phase and portal vein phase enhancement scans were performed, and the source images were thinly reconstructed to 1.25 mm. We reconstructed the celiac trunk, portal vein,inferior vena cava and their branches and subjected them to three-dimensional vessel analysis by volume rendering(VR) technique and multiplanar volume reconstruction(MPVR) technique. The blood vessel reconstruction technique was used to evaluate the scope and extent of portal vein-vena cava shunt, portal vein emboli and the fistula of hepatic artery- portal vein. The relationship between the episode risk of portal-systemic encephalopathy and the scope and extent of portal vein-vena cava shunt,portal vein emboli and fistula of hepatic artery- portal vein was studied.RESULTS: The three-dimensional vessel reconstruction technique of spiral-CT could display celiac trunk, portal vein,inferior vena cava and their branches at any planes and angles and the scope and extent of portal vein-vena cava shunt, portal vein emboli and the fistula of hepatic artery- portal vein. In twenty-nine patients with portal-systemic encephalopathy, grade Ⅰ accounted for 89.7% esophageal varices, 86.2% paragastric varices; grade Ⅱ accounted for68.75% cirsomphalos, 56.25% paraesophageal varices,62.5% retroperitoneal varices and 81.25% dilated azygos vein; grade Ⅲ accounted for 80% cirsomphalos, 60%paraesophageal varices, 70% retroperitoneal varices, 90%dilated azygos vein, and part of the patients in grades Ⅱand Ⅲ had portal vein emboli and fistula of hepatic arteryportal vein

  1. Nursing care of the complications caused by vena cava filter placement and thrombolytic therapy

    International Nuclear Information System (INIS)

    Objective: To discuss the nursing care and observation measures for the complications occurred after vena cava filter placement and thrombolytic therapy. Methods: During the period of July 2007-March 2010, vena cava filter placement and thrombolytic therapy were employed in 70 patients. The observation for the main procedure-related complications was made. The main complications included bleeding tendency, pulmonary embolism, filter migration or loss, thrombus formation within filter, IVC perforation due to filter, venous insufficiency and skin blisters of the affected lower extremity. Results: The total effective rate of thrombolytic treatment in 70 patients was 95.7%. As reasonable and effective nursing care measures were implemented, no major complications, such as pulmonary embolism, filter migration or loss,thrombus formation within filter, IVC perforation due to filter, infection, etc. occurred. The other complications developed in some patients,which included hematuria (n=4), bleeding at puncturing site (n=3), bleeding at abdominal incision (n=3), subcutaneous ecchymosis (n=3) and skin vesicles of diseased limb (n=3), all of which were cured after proper management. Conclusion: Postoperative nursing is a kind of prospective nursing care, the primary purpose of which is to prevent the occurrence of the potential complications after surgery. Therefore, solid fundamental knowledge, careful observation ability and strong consciousness of responsibility are most important.(authors)

  2. The clinical implications of variants of vena cava inferior and aorta on retroperitoneal surgery

    Directory of Open Access Journals (Sweden)

    S. V. Mukhtarulina

    2014-12-01

    Full Text Available Objective: to study variants of retroperitoneal vascular structure and its clinical implications on retroperitoneal surgery in patients with cervical cancer IA–IIB stage.Materials and methods. 101 patients who underwent paraaortic and bilateral pelvic lymphadenectomy were included in this study. 10 patients of the first group with anomalies of inferior vena cava, renal arteries and veins, common iliac vein and ovarian vessels were compared with 91 patients of the second group without anomalies.Results. Variants of major retroperitoneal vascular structure were present in 10 (9.9 % patients. Supernumerary renal arteries and veins observed in 5 (4.9 % patients; retroaortic left renal vein type I and II – in 3 (3.0 % patients. Double vena cava inferior detected in 1 (1.0 % patient. Patients with variants of retroperitoneal vascular structures hadn’t vessel injury. There was no difference in intraoperative hemorrhage, transfusion red blood cell, rate of intraoperative hemoglobin and removed paraaortic lymph nodes between the groups. Risk factors for intraoperative bleeding in patients with cervical cancer, depending on the presence or absence of anomalies of retroperitoneal vessels had no significant difference.Conclusion. Despite the fact that the variants of retroperitoneal vascular structures are rare (9.9 %, the success of retroperitoneal surgery is associated with the knowledge of vascular variations which decrease serious, life-threatening complications.

  3. CT of inferior vena cava filters: normal presentations and potential complications.

    Science.gov (United States)

    Georgiou, Nicholas A; Katz, Douglas S; Ganson, George; Eng, Kaitlin; Hon, Man

    2015-12-01

    With massive pulmonary embolism (PE) being the first or second leading cause of unexpected death in adults, protection against PE is critical in appropriately selected patients. The use of inferior vena cava (IVC) filters has increased over the years, paralleling the increased detection of deep venous thrombosis (DVT) and PE by improved and more available imaging techniques. The use of IVC filters has become very common as an alternative and/or as a supplement to anticoagulation, and these filters are often seen on routine abdominal CT, including in the emergency setting; therefore, knowledge of the normal spectrum of findings of IVC filters by the radiologist on CT is critical. Additionally, CT can be used specifically to identify complications related to IVC filters, and CT may alternatively demonstrate IVC filter-related problems which are not specifically anticipated clinically. With multiple available IVC filters on the US market, and even more available outside of the USA, it is important for the emergency and the general radiologist to recognize the different models and various appearances and positioning on CT, as well as their potential complications. These complications may be related to venous access, but also include thrombosis related to the filter, filter migration and penetration, and problems associated with filter deployment. With the increasing number of inferior vena cava filters placed and their duration within patients increasing over time, it is critical for emergency and other radiologists to be aware of these findings on CT. PMID:26183040

  4. A new type of inferior vena cava filter and its animal experiment

    Institute of Scientific and Technical Information of China (English)

    YU; Xue-bao; LIU; Mei-rong; GUO; Jin-fang; HU; Yu-ling

    2005-01-01

    This article explains the definition of pulmonary embolism as well as its causes and elaborates on a new type of inferior vena cava filter(VCF)we have developed. Shaped like a waistdrum,the VCF is mainly made of TiNi shape memory alloy-wire. It has a subulate wire frame which can intercept the thrombus on each side. Its medial body is made up of straight shape memory alloywire . Every pillar is bound by several shape memory alloy springs. This type of inferior vena cava filter has a good resistance to fatigue and is hard to be broken. Through animal experiments its framework has been proved to be lasting. Neither deformation nor fragmentation happened when the VCF had been kept in the body for a long time. The thrombus interception efficiency of our VCF is higher than imported VCFs. The filter is unfavorable for thrombosis. After implantation,the IVC was completely unimpeded and no displacement occurred. Moreover the VCF did little damage to the Wall of vein. Neither IVC perforation nor haematoma occurred after the operation.

  5. Pensamiento Superior y Desarrollo Territorial

    OpenAIRE

    Víctor Manuel Racancoj Alonzo

    2015-01-01

    Esta reflexión pretende explicar el papel, fundamental, que juega el pensamiento superior, en la formulación y la práctica de modelos de desarrollo territorial local; para que contribuyan de forma sustantiva, en la transformación de las condiciones socioeconómicas adversas que hoy viven comunidades indígenas y rurales de muchos países, como Guatemala, situación que puede resumirse en altos índices de pobreza y desnutrición. Pero, el pensamiento superior, debe ser competencia de la población c...

  6. The human superior cervical ganglion

    DEFF Research Database (Denmark)

    Tajti, J; Möller, S; Uddman, R; Bodi, I; Edvinsson, L

    Noradrenaline (NA)- and neuropeptide Y (NPY)-containing cell bodies were found to occur in high numbers (>75% of all cells were positive) in the human superior cervical ganglion and distributed homogeneously throughout the ganglion and showed colocalisation. A few cell bodies were VIP......-immunoreactive (-ir) (less than 5%) but none of them showed NOS-, CGRP- or SP-ir. Receptor mRNA expression was studied with RT-PCR. Total RNA from the superior cervical ganglion was successfully extracted. By using appropriate sense and antisense oligonucleotides designed from the published human sequences, we could...

  7. DISFUNCIÓN VENTRICULAR IZQUIERDA EN PACIENTES CON INFECCIÓN POR VIRUS DE INMUNODEFICIENCIA HUMANA / Left ventricular dysfunction in patients with human immunodeficiency virus infection

    Directory of Open Access Journals (Sweden)

    Angélica M. Reyes Pérez

    2013-04-01

    Full Text Available Resumen: La infección por el virus de inmunodeficiencia humana es una de las principales causas de cardiopatía adquirida, especialmente de disfunción ventricular izquierda sintomática. Se realizó una revisión bibliográfica para profundizar en los diversos elementos clínicos, fisiopatológicos y diagnósticos que caracterizan a estos pacientes. La patogénesis de la disfunción del ventrículo izquierdo se relaciona con diversos agentes causales como: la infección miocárdica por el propio virus, las infecciones oportunistas o por otros virus, mecanismos autoinmunes, deficiencias nutricionales, sobreexpresión de citocinas y toxicidad inducida por fármacos. La disfunción sistólica sintomática es una manifestación tardía de afectación cardíaca mientras que una proporción importante de pacientes presentan alteraciones clínicamente silentes. La disfunción diastólica cursa con una alteración precoz de la relajación miocárdica y de la dinámica de llenado del ventrículo izquierdo. La ecocardiografía es útil para el diagnóstico. El tratamiento antirretroviral actual incrementa la supervivencia de pacientes con infección por el virus de inmunodeficiencia humana, lo cual presumiblemente producirá un aumento en la prevalencia de complicaciones cardíacas. Se requiere de nuevos estudios prospectivos observacionales que determinen la susceptibilidad de desarrollar enfermedad cardíaca sintomática en los pacientes infectados por este virus. / Abstract: Infection with the human immunodeficiency virus is a major cause of acquired heart disease, especially symptomatic left ventricular dysfunction. A literature review was conducted to deepen the understanding of the various clinical, pathophysiological and diagnostic aspects that characterize these patients. The pathogenesis of left ventricular dysfunction is related to various causative agents such as: myocardial infection by the virus itself, opportunistic infections or by other

  8. What are Millian Qualitative Superiorities?

    Directory of Open Access Journals (Sweden)

    Jonathan Riley

    2008-04-01

    Full Text Available In an article published in Prolegomena 2006, Christoph Schmidt-Petri has defended his interpretation and attacked mine of Mill’s idea that higher kinds of pleasure are superior in quality to lower kinds, regardless of quantity. Millian qualitative superiorities as I understand them are infinite superiorities. In this paper, I clarify my interpretation and show how Schmidt-Petri has misrepresented it and ignored the obvious textual support for it. As a result, he fails to understand how genuine Millian qualitative superiorities determine the novel structure of Mill’s pluralistic utilitarianism, in which a social code of justice that distributes equal rights and duties takes absolute priority over competing considerations. Schmidt-Petri’s own interpretation is a non-starter, because it does noteven recognize that Mill is talking about different kinds of pleasant feelings, such that the higher kinds are intrinsically more valuable than the lower. I conclude by outlining why my interpretation is free of any metaphysical commitment to the “essence” of pleasure.

  9. Giant superior mesenteric artery aneurysm

    OpenAIRE

    Temiz, Ahmet; Bostan, Mehmet; Şatıroğlu, Ömer; Çetin, Mustafa; Bozkurt, Engin

    2011-01-01

    Aneurysm of the superior mesenteric artery (SMA) is a rare condition and most of them are symptomatic. Gradu­ally increasing abdominal pain, intestinal ischemic symp­toms and rupture are the most common symptoms. We herein report a giant SMA aneurysm detected in a patient with complaint of abdominal discomfort.

  10. Long-term follow-up of patients with inferior vena cava filters in the prevention of pulmonary embolism

    International Nuclear Information System (INIS)

    Objective: To evaluate the long-term safety, efficacy and complications of placement vena cava filter in prevention of pulmonary embolism. Methods: Seventy-three patients with proven diagnosis of deep venous thrombosis (DVT) and (or) pulmonary embolism (PE) by Doppler ultrasonography, DSA, CT or MRI, received percutaneous inferior vena cava filters (IVCF) from January 1994 to June 2005. The clinical data and imaging findings were evaluated retrospectively. The patients underwent telephone interview or questionnaire, abdominal X-rays, Doppler ultrasonography, computed tomographic pulmonary angiography (CTPA) or indirect CT venography (CTV) after a follow-up duration of 5 months to 11 years. Results: Seventy-eight vena cava filters were used. There was 1 case of incomplete filter opening when placing filter. In follow-up, thrombi were trapped in the filter in 2 cases, filter tilting happened in 1 case, and there were no filter migration, filter disruption, filter perforation. Five of 73 cases were lost in follow-up visit, 14 patients died after implantation (5 days to 41 months, average 14.5 months). Among the 54 living patients, the identified recurrent PE was not noted. Three cases of recurrent DVT, 1 case of inferior vena caval thrombosis and 1 case of thrombosed filters were seen in follow-up. Conclusion: Inferior vena cava filter is safe and effective for the long-term prevention pulmonary embolism, and the long-term major complications after filter placement are not frequent. (authors)

  11. OptEase and TrapEase Vena Cava Filters: A Single-Center Experience in 258 Patients

    International Nuclear Information System (INIS)

    We aimed to evaluate the efficacy and safety of the OptEase and TrapEase (both from Cordis, Roden, Netherlands) vena cava filters in the prevention of pulmonary embolism (PE). Between May 2004 and December 2008, OptEase (permanent/retrievable; n = 228) or TrapEase (permanent; n = 30) vena cava filters were placed in 258 patients (160 female and 98 male; mean age 62 years [range 22 to 97]). Indications were as follows: prophylaxis for PE (n = 239), contraindication for anticoagulation in the presence of PE or DVT (n = 10), and development of PE or DVT despite anticoagulation (n = 9). Medical records were retrospectively reviewed for indications, clinical results, and procedure-related complications during placement and retrieval. Clinical PE did not develop in any of the patients. However, radiologic signs of segmental PE were seen in 6 of 66 patients with follow-up imaging data. Migration or fracture of the filter or cava perforation was not seen in any of the patients. Except for a single case of asymptomatic total cava thrombosis, no thrombotic occlusion was observed. One hundred forty-one patients were scheduled to undergo filter removal; however, 17 of them were not suitable for such based on venography evaluation. Removal was attempted in 124 patients and was successful in 115 of these (mean duration of retention 11 days [range 4 to 23]). Nine filters could not be removed. Permanent/retrievable vena cava filters are safe and effective devices for PE prophylaxis and for the management of venous thromboembolism by providing the option to be left in place.

  12. Klaus Meschkat y José María Rojas, compiladores. Liquidando el pasado. La izquierda colombiana en los archivos de la Unión Soviética

    Directory of Open Access Journals (Sweden)

    Mauricio Archila Neira

    2010-10-01

    Full Text Available El voluminoso libro que compilan Klaus Meschkat y José María Rojas cubre más de 170 documentos sobre las relaciones de la izquierda colombiana con la Internacional Comunista entre 1927 y 1933, seleccionados de los archivos de la ex Unión Soviética (y unos pocos del archivo del, por ese entonces, ministro Ignacio Rengifo. Las primeras 80 páginas corresponden a dos introducciones de los compiladores en las que presentan el contexto del texto y algunos rasgos del liderazgo revolucionario de esos años. Por tanto, el grueso del libro, casi 750 páginas, corresponde a los mencionados documentos organizados en once capítulos.

  13. Writing superiority in cued recall

    OpenAIRE

    Carina eFueller; Jens eLoescher; Peter eIndefrey

    2013-01-01

    In list learning paradigms with free recall, written recall has been found to be less susceptible to intrusions of related concepts than spoken recall when the list items had been visually presented. This effect has been ascribed to the use of stored orthographic representations from the study phase during written recall (Kellogg, 2001). In other memory retrieval paradigms, by contrast, either better recall for modality-congruent items or an input-independent writing superiority effect have b...

  14. X-ray examination in diagnosis of hepatic segment deficiency of inferior cava

    Energy Technology Data Exchange (ETDEWEB)

    Kiseleva, I.P.; Podzolkov, V.P.; Ivanitskij, A.V.; Mal' sagov, G.U. (Akademiya Meditsinskikh Nauk SSSR, Moscow. Inst. Serdechno-Sosudistoj Khirurgii; Tsentral' nyj Inst. Usovershenstvovaniya Vrachej, Moscow (USSR))

    Data on clinical and X-ray examination of 29 patients aged 2 weeks to 66 years with vena cava inferior hepatic segment deficiency are presented. The blood outflow from the lower part of the body was effected through the azygos vein in 17 patients, and through the hemiazygos one in 12 patients. The data obtained were in all cases correlated with the results of intracardiac research methods (the right and left heart cavities catherization and angiocardiography), with intraoperative and autopsy findings. An anomaly was found to prevail in patients (89.6%) with different types of abnormal heart position in the thoracic cavity. Along with examination of the cardiovascular system, the abdominal organs study was carried out: standard roentgenoscopy and radiography, both aiming to detect the liver position, gastrointestinal tract examination, and cholecystography.

  15. X-ray examination in diagnosis of hepatic segment deficiency of inferior cava

    International Nuclear Information System (INIS)

    Data on clinical and X-ray examination of 29 patients aged 2 weeks to 66 years with vena cava inferior hepatic segment deficiency are presented. The blood outflow from the lower part of the body was effected through the azygos vein in 17 patients, and through the hemiazygos one in 12 patients. The data obtained were in all cases correlated with the results of intracardiac research methods (the right and left heart cavities catherization and angiocardiography), with intraoperative and autopsy findings. An anomaly was found to prevail in patients (89.6%) with different types of abnormal heart position in the thoracic cavity. Along with examination of the cardiovascular system, the abdominal organs study was carried out: standard roentgenoscopy and radiography, both aiming to detect the liver position, gastrointestinal tract examination, and cholecystography

  16. Patency of the inferior vena cava after placement of Simon nitinol filter

    International Nuclear Information System (INIS)

    This paper reports on Simon nitinol filters (SNFs) placed in 33 patients (11 male, 22 female; mean age, 67 years; range, 38-88 years) since February 1988. MR imaging and US were performed in 18 of these patients to evaluate patency of the inferior vena cava (IVC) 2-9 months after SNF placement. Six patients were imaged twice with MR and US, for a total of 24 studies. Duplex Doppler US was used. For MR imaging, spin-echo sequences were used for six examinations in five patients, and fast low-angle shot sequences in the remaining 18. The results were as follows for MR imaging versus US: adequate visualization of the IVC, 23 versus 10 studies; partial visualization, one versus five; nonvisualization, zero versus nine; normal IVC, 16 versus 10; occlusions of IVC, five (three patients) versus zero; partial occlusion, two (asymptomatic patients) versus zero; and nondiagnostic findings, one versus 14

  17. Liver transplantation with preservation of the inferior vena cava in case of symptomatic adult polycystic disease.

    Science.gov (United States)

    Lerut, Jan; Ciccarelli, Olga; Rutgers, Matthieu; Orlando, Giuseppe; Mathijs, Jules; Danse, Etienne; Goffin, Eric; Gigot, Jean-François; Goffette, Pierre

    2005-05-01

    Adult polycystic liver disease (APLD) is a rare disorder of the liver parenchyma, the treatment of which is still controversial. Conservative surgery may have a significant morbidity and is often ineffective in the long run. Liver replacement may be indicated in case of incapacitating hepatomegaly. Patients (one male, five females) undergoing liver transplantation for symptomatic APLD is presented in this study. The particular nature of this series is the fact that successful transplantation was performed in all cases with preservation of the recipient's inferior vena cava and without use of veno-venous bypass despite massive hepatomegaly and previous extensive liver surgery (in three cases). There was minimal morbidity and no mortality. All patients have excellent quality of life with a median follow-up of 41 months (range: 12-58) as testified by a median Karnofsky score of 90% (range: 80-100%). PMID:15819798

  18. Acute wiiitis representing as thrombosis of the inferior vena cava and left pelvic veins.

    Science.gov (United States)

    Brodmann, M; Gary, T; Hafner, F; Eller, P; Deutschmann, H; Pilger, E; Seinost, G

    2015-08-01

    Deep venous thrombosis as a result of venous wall injury provoked by trauma is a common finding. It often occurs in patients with sportive overstraining, caused by over fatigue of the body structures. In 2007, the entity of "acute wiiitis" was first described in a letter to the New England Journal of Medicine. Acute wiiitis sums up all affections, mainly skeletal and muscle affections, provoked by playing Nintendo Wii, a very common and loved video-game system. Deep venous thrombosis as a consequence of Nintendo Wii has not been described so far. We present a patient with a massive free floating thrombus of the left pelvic veins originating from the gluteal veins and reaching into the inferior vena cava after playing Nintendo Wii. PMID:24681523

  19. Brachytherapy for the prevention of neointimal hyperplasia in the canine inferior vena cava after stent placement

    Energy Technology Data Exchange (ETDEWEB)

    Isota, Masayuki; Kaminou, Toshio; Sakai, Yukimasa; Nakamura, Kenji; Yamada, Ryusaku [Osaka City Univ. (Japan). Medical School

    2002-06-01

    The aim of this study was to evaluate the efficacy of brachytherapy for preventing neointimal hyperplasia in the inferior vena cava (IVC) after stent placement. Sixteen beagles underwent Z-stent placement in the IVC and the aorta. For 8 of 16 beagles, irradiation (15 Gy) was delivered endoluminally to the stented segments of each vessel immediately after stent placement using the {sup 192}Ir. All animals were sacrificed after 6 weeks for morphometric and histopathologic examination. Morphometrically, neointimal thickness in the IVC of the radiation group was significantly decreased compared with the control group as well as that in the aorta (p<0.05). Histopathologic findings showed the neointima in the IVC of the control group contained markedly organization of thrombus and neovascularization though that in the IVC of the radiation group consisted mainly of smooth muscle cells without organization of thrombus and neovascularization. From these data intravenous irradiation may prevent clinical restenosis after stent placement. (author)

  20. CT of anomalies of the inferior vena cava and left renal vein

    International Nuclear Information System (INIS)

    Incidence of anomalies of the inferior vena cava (IVC) and left renal vein (LRV) was examined with post-contrast abdominal CT studies in the last five years and seven months retrospectively. Of the total 1100 cases, right retrocaval ureter was noted in two cases (0.2 %), left IVC was two (0.2 %) and bilateral IVC was twelve (1.1 %) about anomalies of the IVC. As to anomalies of the LRV, retroaortic LRV was four (0.4 %) and circumaortic LRV was six (0.5 %). These results did not always agree with those of previous reports on dissection cases. Particularly, incidence of anomalies of the LRV on CT was much lower than that on dissection. We speculated that racial difference was one of its causes. Clinical usefulness of CT for evaluation of anomalies of the IVC and LRV was stressed. (author)

  1. Inferior vena cava obstruction and collateral circulation as unusual manifestations of hepatobiliary cystadenocarcinoma

    Institute of Scientific and Technical Information of China (English)

    Nikolaos Arkadopoulos; Anneza I Yiallourou; Constantinos Palialexis; Emmanouil Stamatakis

    2013-01-01

    BACKGROUND: Hepatobiliary cystadenocarcinoma represents a rare epithelial malignant tumor derived from the intrahepatic bile duct. METHODS: A 71-year-old woman, who had undergone laparos-copic drainage of a cystic lesion of the right hepatic lobe, was misdiagnosed  as  having  hepatic  echinococcal  disease,  and received intracystic infusion of 95% ethanol four years ago. She was admitted to our hospital for further treatment. RESULTS: Physical  examination  revealed  dilated  superficial veins  across  the  right  abdominal  wall.  After  mapping  the direction of blood flow in these vessels, we assumed that this was a sign of inferior vena cava obstruction. Abdominal ultrasound, computed tomography, magnetic resonance imaging combined with  magnetic  resonance  angiography  showed  a  large  cystic mass in the right upper quadrant and epigastrium, displacing the  adjacent  structures,  adherent  to  the  inferior  vena  cava, which  was  not  patent,  resulting  in  dilation  of  superficial epigastric  veins.  The  patient  underwent  an  exploratory laparotomy.  Total  excision  of  the  huge  mass  measuring  16× 15  cm  was  possible  under  selective  vascular  exclusion  of  the liver. Removal of the tumor resulted in immediate restoration of flow in the inferior vena cava. On the basis of the pathology and findings of immunohistochemical analysis, a hepatobiliary cystadenocarcinoma was diagnosed. CONCLUSIONS: In the present case, hepatobiliary cystadenocar-cinoma was accompanied by dilated superficial venous collaterals due to inferior vena

  2. Long-Term Safety and Effectiveness of the “OptEase” Vena Cava Filter

    International Nuclear Information System (INIS)

    Purpose: To assess the long-term safety and effectiveness of the OptEase inferior vena cava (IVC) filter. Materials and Methods: In this Institutional Review Board-approved, retrospective study, we reviewed data of 71 patients who received an OptEase filter at our institution from 2002 to 2007. Thirty-nine (55%) patients had symptoms of venous thromboembolism before filter placement. The indications for filter included contraindication to anticoagulation in 31 (44%) patients, prophylaxis against pulmonary embolism (PE) in 29 (41%) patients, and failure of anticoagulation in 11 (15%) patients. Procedure-related complications, such as symptomatic post-filter PE, deep venous thrombosis (DVT), IVC occlusion, and incidental imaging-evident filter-related complications, were recorded. Safety was assessed by the occurrence of filter-related complications during placement and follow-up. Effectiveness was assessed by the occurrence of post-filter PE. Results: Sixty-five (92%) filters were placed under fluoroscopy, and 6 (8%) were placed using intravascular ultrasound guidance. Seventy (99%) filters were placed successfully. Seven (10%) filters were placed in the suprarenal cava. Retrieval was attempted in 14 (20%) patients, and 12 filters were successfully retrieved. Clinical follow-up was available for 20 ± 21 months. Symptoms of postfilter PE and DVT occurred in 15% (n = 11) and 10% (n = 7) patients, respectively. None of these patients had computed tomography (CT)-proven PE, and only one had ultrasound-proven new DVT. One patient had symptomatic IVC occlusion. Follow-up abdominal CT in 20 patients showed thrombus in the filter in two of them. There were no instances of filter migration, filter tilt, or caval wall penetration. Conclusion: The OptEase filter appears to have an acceptable long-term safety profile. The filter was effective against PE.

  3. Adrenocortical carcinoma with extension to the inferior vena cava and right atrium: 20-month-old girl with TP53 mutation

    Directory of Open Access Journals (Sweden)

    Terry L. Levin, MD

    2015-01-01

    Full Text Available A 20-month-old female presented with respiratory distress and a right adrenal mass extending into the inferior vena cava and right atrium. The mass was initially thought to be neuroblastoma. Pathology later revealed adrenocortical carcinoma. Inferior vena cava extension is far more common in adrenocortical carcinoma than neuroblastoma, and its presence should prompt clinical and laboratory evaluation for an adrenocortical tumor. The genetic findings in TP53 associated with this disease are discussed.

  4. The Role of Nasopharyngeal Temperature Monitoring in Detection of a Malpositioned Superior Vena Cava Cannula in an Emergency Coronary Artery Bypass in a Patient With Ventricular Septal Defect

    OpenAIRE

    Dabbagh, A; M Shahzamani; M Foroughi; K Ghods; M Ghomeisi; Rahimian, H.

    2010-01-01

    A 55 year-old woman was admitted to the CCU ward of our university hospital due to typical chest pain. The patient received supportive care and was transferred to the operating room for an emergency repair of the ventricular septal defect (VSD) and myocardial revascularization. The surgical team was notified regarding the tolerance to cooling detected by the temperature monitoring and also, the congestion of eye and blanching of forehead. After a few maneuvers, the cannula was repositioned. I...

  5. Fibrosing mediastinitis with superior vena cava obstruction as the initial presentation of Langerhans' cell histiocytosis in a young child

    Energy Technology Data Exchange (ETDEWEB)

    Trusen, Andreas; Beissert, Matthias; Darge, Kassa [Department of Paediatric Radiology, Institute of Radiodiagnostics, University of Wuerzburg, Josef-Schneider-Strasse 2, 97080 Wuerzburg (Germany); Hebestreit, Helge [University Children' s Hospital, University of Wuerzburg, Wuerzburg (Germany); Marx, Alexander [Institute of Pathology, University of Wuerzburg, Wuerzburg (Germany)

    2003-07-01

    We present a 2-year-old girl with an unusual presentation of Langerhans' cell histiocytosis (LCH). Five months prior to admission to our hospital, she received IV steroids for bronchial obstruction. On admission, clinical signs of SVC obstruction were evident and a mediastinal mass was evident on the chest radiograph and MRI. Biopsy revealed fibrosing mediastinitis. Five months later, osteolysis was present on a skull radiograph. Surgical biopsy of the skull lesion revealed LCH. This case is unique because it demonstrates a rare initial manifestation of LCH that has not been previously reported. Furthermore, the primary, solitary mediastinal manifestation without calcifications was histologically interpreted as fibrosing mediastinitis, and the final diagnosis of LCH was only made after identifying the skull lesion. (orig.)

  6. The Arthroscopic Superior Capsular Reconstruction.

    Science.gov (United States)

    Adams, Christopher R; Denard, Patrick J; Brady, Paul C; Hartzler, Robert U; Burkhart, Stephen S

    2016-01-01

    In a subset of patients with rotator cuff tears, the glenohumeral joint has minimal degenerative changes and the rotator cuff tendon is either irreparable or very poor quality and unlikely to heal. Reverse shoulder arthroplasty (RSA) is often considered for these patients despite the lack of glenohumeral arthritis. However, due to the permanent destruction of the glenohumeral articular surfaces, complication rates, and concerns about implant longevity with RSA, we believe the superior capsular reconstruction (SCR) is a viable alternative. In this article, we describe our technique for the SCR. PMID:27552457

  7. O cyberbullying no ensino superior

    OpenAIRE

    Tavares, Telma Filipa Félix

    2014-01-01

    O cyberbullying pode ser caracterizado por um comportamento agressivo e intencional. Aproximadamente 20 a 40% dos jovens afirmam serem vítimas de cyberbullying (Patchin & Hinduja, 2006) e cerca de 11% a 17% afirmam ter molestado alguém. O presente estudo pretende caracterizar o cyberbullying numa amostra da população universitária. Foi utilizado o Questionário de Cyberbullying no Ensino Superior (QCES) que apresenta 4 Subescalas que avaliam Vítimas, Agressores, Observadores de Agressores e Ob...

  8. Leiomiosarcoma endovascular en vena cava inferior con síndrome de Budd-Chiari asociado: a propósito de un caso Endovascular Leiomyosarcoma ofthe Inferior Vena Cava with Budd-Chiari syndrome: a case report

    Directory of Open Access Journals (Sweden)

    David Ibáñez Muñoz

    2011-09-01

    Full Text Available Presentamos el caso de una mujer de 56 años de edad, que acude al Servicio de Urgencias de nuestro centro por un cuadro de distensión y dolor abdominal difuso con edemas en extremidades inferiores. En los estudios de imagen realizados (ecografía y TC se demostró la existencia de ocupación intraluminal de la vena cava inferior, por una masa que se extendía desde el drenaje de las venas renales hasta su confluencia en la aurícula derecha, con signos de obstrucción de las venas suprahepáticas. El diagnóstico anatomopatológico final fue de leiomiosarcoma con síndrome de Budd-Chiari asociado. El leiomiosarcoma de vena cava inferior es una patología poco frecuente y su asociación con síndrome de Budd-Chiari es aún más excepcional.We report the case of a 56-year-old woman who presented at our Emergency Department with symptoms ofdiffuse abdominal pain and distention with lower-extremity edema. Imaging studies (ultrasound and computed tomography showed an intraluminar inferior vena cava mass extending from the renal veins drain to their confluence at the right atrium, with signs of obstruction of the suprahepatic veins. The final pathology diagnosis was leiomyosarcoma with Budd-Chiari syndrome. The leiomyosarcoma of the inferior vena cava is an infrequent pathology and its association with Budd-Chiari syndrome is even rarer.

  9. Renal Artery Stump to Inferior Vena Cava Fistula: Unusual Clinical Presentation and Transcatheter Embolization with the Amplatzer Vascular Plug

    International Nuclear Information System (INIS)

    Fistulous communication between the renal artery stump and inferior vena cava following nephrectomy is rare. We describe the case of a 52-year-old man with a fistula detected on investigation for hemolytic anemia in the postoperative period. The patient had had a nephrectomy performed 2 weeks prior to presentation for blunt abdominal trauma. The fistula was successfully occluded percutaneously using an Amplatzer vascular plug. The patient recovered completely and was discharged 2 weeks later.

  10. Posterior Nutcracker Syndrome Associated with Interrupted Left Inferior Vena Cava with Azygos Continuation and Retroaortic Right Renal Vein

    OpenAIRE

    Luo, Xiao-Li; Qian, Gen-Nian; Xiao, Hui; Zhao, Chun-Lei; Zhou, Xiao-Dong

    2012-01-01

    Various anatomic anomalies have been considered the causes of nutcracker syndrome (NCS). Posterior NCS refers to the condition, in which vascular narrowing was secondary to the compression of the retroaortic left renal vein while it is crossing between the aorta and the vertebral column. Here, we report an unusual case of posterior NCS associated with a complicated malformation of the interrupted left inferior vena cava with azygos continuation and retroaortic right renal vein, diagnosed by b...

  11. Posterior Nutcracker Syndrome Associated with Interrupted Left Inferior Vena Cava with Azygos Continuation and Retroaortic Right Renal Vein

    International Nuclear Information System (INIS)

    Various anatomic anomalies have been considered the causes of nutcracker syndrome (NCS). Posterior NCS refers to the condition, in which vascular narrowing was secondary to the compression of the retroaortic left renal vein while it is crossing between the aorta and the vertebral column. Here, we report an unusual case of posterior NCS associated with a complicated malformation of the interrupted left inferior vena cava with azygos continuation and retroaortic right renal vein, diagnosed by both color Doppler ultrasonography and CT angiography.

  12. GCS as a predictor of mortality in patients with traumatic inferior vena cava injuries: a retrospective review of 16 cases

    OpenAIRE

    Cudworth, Michael; Fulle, Angelo; Ramos, Juan P; Arriagada, Ivette

    2013-01-01

    Introduction Recent research has determined Glasgow Coma Scale (GCS) to be an independent predictor of mortality in patients with traumatic inferior vena cava (IVC) injuries. The aim of this study was to evaluate the use of GCS, as well as other factors previously described as determinants of mortality, in a cohort of patients presenting with traumatic IVC lesions. Methods A 7-year retrospective review was undertaken of all trauma patients presenting to a tertiary care trauma center with trau...

  13. A prebiotic effect of Ecklonia cava on the growth and mortality of olive flounder infected with pathogenic bacteria.

    Science.gov (United States)

    Lee, WonWoo; Ahn, Ginnae; Oh, Jae Young; Kim, Seung Min; Kang, Nalae; Kim, Eun A; Kim, Kil-Nam; Jeong, Joon Bum; Jeon, You-Jin

    2016-04-01

    Olive flounder (Paralichthys olivaceus), also known as the Japanese flounder in Japan, is one of the most important commercial marine finfish species cultured in Korea and Japan. The purpose of this study was to evaluate how a species of brown algae (Ecklonia cava, E. cava) affects the growth rate of olive flounder and its immune response to pathogenic bacteria. First, the experimental fish were divided into four groups: the control group was fed the diet containing only 1.0% Lactobacillus plantarum (L. plantarum), group I was fed 1.0% L. plantarum and 1.0% E. cava (EC), group II was fed 1.0% L. plantarum and 0.1% ethanol extract of EC (EE), and group III was fed 1.0% L. plantarum and 0.5% EE. The diets fed to the fish twice a day for 16 weeks. The results indicated that supplementation with 1.0% EC and 0.1% EE improved the growth and body weight of olive flounder, and decreased its mortality. This diet, however, did not significantly affect the biochemical profiles of the experimental flounder. The supplementation of 1.0% EC also enhanced the innate immune response of the fish, as evidenced by the high respiratory burst, and increased serum lysozyme and myeloperoxidase activity. The addition of 1.0% EC and either 0.1% or 0.5% EE also decreased the accumulative mortality of olive flounder infected by pathogenic bacteria (Edwardsiella tarda, Streptococcus iniae, and Vibrio harveyi). Overall, these results suggest that E. cava can act as a prebiotic by improving the innate immune response in fish infected with pathogenic bacteria as increased the growth of the probiotic. PMID:26921543

  14. Inferior vena cava filter placement for the prevention of pulmonary embolism and the complications related to the filter placement

    International Nuclear Information System (INIS)

    Objective: To investigate the effects of inferior vena cava (IVC) filter placement for the prevention of fatal pulmonary embolism and to discuss the management of complications related to the filter placement. Methods: Seventy patients with proved deep vein thrombosis of lower extremity underwent inferior vena cava filter placement.A total of 72 IVC filters were implanted,which included 20 Trap Ease filters, 31 Vena Tech filters, 13 retrievable OptEaseTM filters and 8 Tempo II filters. One filter was deployed above the orifice of renal vein and the remaining 71 were deployed below the orifice of renal vein. Results: All the patients were followed up for 8-72 months after the procedure. During the follow-up period no fatal pulmonary embolism occurred except that some complications related to the filter placement occurred in 6 cases. Conclusion: Inferior vena cava filter placement can effectively prevent the occurrence of pulmonary embolism. Of course, this treatment should be strictly applied according to the indications. (authors)

  15. Experimental evaluation of a new retrievable inferior vena cava filter for protection from acute pulmonary embolism in canine

    International Nuclear Information System (INIS)

    Objective: To evaluate the validity, safety and feasibility of a new retrieval inferior vena cava filter for the prevention of pulmonary embolism in an animal model. Methods: The model of deep iliofemoral venous thrombosis was established in 12 experimental dogs. In control group(6 experimental dogs), the deep venous thrombosis was made to fall off directly. In experimental group (6 experimental dogs), the deep venous thrombosis was made to fall off with an implanted filter in inferior vena cava. The filter's thrombus-trapping efficacy was evaluated by angiography of pulmonary artery, measurement of the mean pressure of pulmonary artery and arterial oxygen saturation before and after the deep venous thrombus falling off. Results: All filters implanted in the experimental dogs could successfully capture clot coming from deep venous thrombosis. There was no case of pulmonary embolism in experimental groups. On the other hand, pulmonary embolism occurred following the fall of deep venous thrombus in all dogs of control group. Conclusion: The retrievable inferior vena cava filter can effectively prevent from the pulmonary embolism due to falling off of the emboli from deep venous thrombosis. The process of implantation and retrieval is relatively simple and easy. (authors)

  16. Polyphenol-Rich Fraction of Ecklonia cava Improves Nonalcoholic Fatty Liver Disease in High Fat Diet-Fed Mice

    Directory of Open Access Journals (Sweden)

    Eun-Young Park

    2015-11-01

    Full Text Available Ecklonia cava (E. cava; CA is an edible brown alga with beneficial effects in diabetes via regulation of various metabolic processes such as lipogenesis, lipolysis, inflammation, and the antioxidant defense system in liver and adipose tissue. We investigated the effect of the polyphenol-rich fraction of E. cava produced from Gijang (G-CA on nonalcoholic fatty liver disease (NAFLD in high-fat diet (HFD-fed mice. C57BL6 mice were fed a HFD for six weeks and then the HFD group was administered 300 mg/kg of G-CA extracts by oral intubation for 10 weeks. Body weight, fat mass, and serum biochemical parameters were reduced by G-CA extract treatment. MRI/MRS analysis showed that liver fat and liver volume in HFD-induced obese mice were reduced by G-CA extract treatment. Further, we analyzed hepatic gene expression related to inflammation and lipid metabolism. The mRNA expression levels of inflammatory cytokines and hepatic lipogenesis-related genes were decreased in G-CA-treated HFD mice. The mRNA expression levels of cholesterol 7 alpha-hydroxylase 1 (CYP7A1, the key enzyme in bile acid synthesis, were dramatically increased by G-CA treatment in HFD mice. We suggest that G-CA treatment ameliorated hepatic steatosis by inhibiting inflammation and improving lipid metabolism.

  17. Carbon cycling in Lake Superior

    Science.gov (United States)

    Urban, N. R.; Auer, M. T.; Green, S. A.; Lu, X.; Apul, D. S.; Powell, K. D.; Bub, L.

    2005-06-01

    Carbon (C) cycling in Lake Superior was studied within the Keweenaw Interdisciplinary Transport Experiment in Superior (KITES) project to assess (1) whether the lake is net heterotrophic, (2) sources, sinks and residence time for dissolved organic carbon (DOC), (3) importance of terrigenous organic C subsidies, and (4) factors limiting C flow through bacteria. During 3 years of fieldwork, measurements were made of spatial and temporal distributions of C pools and rates of photosynthesis, community respiration, and bacterial production. Measurements were made of the composition of dissolved organic matter (DOM), rates of DOM photolysis, lability of DOM toward microbial consumption, and river inputs of DOM. All measurements suggest the lake is net heterotrophic. The C:N ratios of DOM suggest that it is primarily of terrigenous origin, but other characteristics (size distribution, UV absorption) point to the presence of autochthonous DOM and to alteration of terrigenous material. The lake mass balance indicates that the residence time (˜8 years) of the DOC pool (17 Tg) is short relative to the hydrologic residence time (170 years). The known flux of terrigenous DOC (˜1 Tg/yr) is too low to support annual bacterial carbon demand (6-38 Tg/yr), but microbial respiration is the major sink for terrigenous DOC. A rapidly cycling, autochthonous DOC pool must exist. Microbial activity was correlated with temperature, phosphorus availability, and DOC concentration but not with photosynthesis rates. Measurements of respiration (˜40 Tg/yr), photosynthesis (2-7 Tg/yr), and bacterial production (0.5-2 Tg/yr) are not all mutually compatible and result in a discrepancy in the organic carbon budget.

  18. Gas hazard assessment in a densely inhabited area of Colli Albani Volcano (Cava dei Selci, Roma)

    Science.gov (United States)

    Carapezza, M. L.; Badalamenti, B.; Cavarra, L.; Scalzo, A.

    2003-04-01

    The northwestern flank of the Colli Albani, a Quaternary volcanic complex near Rome, is characterised by high pCO 2 values and Rn activities in the groundwater and by the presence of zones with strong emission of gas from the soil. The most significant of these zones is Cava dei Selci where many houses are located very near to the gas emission site. The emitted gas consists mainly of CO 2 (up to 98 vol%) with an appreciable content of H 2S (0.8-2%). The He and C isotopic composition indicates, as for all fluids associated with the Quaternary Roman and Tuscany volcanic provinces, the presence of an upper mantle component contaminated by crustal fluids associated with subducted sediments and carbonates. An advective CO 2 flux of 37 tons/day has been estimated from the gas bubbles rising to the surface in a small drainage ditch and through a stagnant water pool, present in the rainy season in a topographically low central part of the area. A CO 2 soil flux survey with an accumulation chamber, carried out in February-March 2000 over a 12 000 m 2 surface with 242 measurement points, gave a total (mostly conductive) flux of 61 tons/day. CO 2 soil flux values vary by four orders of magnitude over a 160-m distance and by one order of magnitude over several metres. A fixed network of 114 points over 6350 m 2 has been installed in order to investigate temporal flux variations. Six surveys carried out from May 2000 to June 2001 have shown large variations of the total CO 2 soil flux (8-25 tons/day). The strong emission of CO 2 and H 2S, which are gases denser than air, produces dangerous accumulations in low areas which have caused a series of lethal accidents to animals and one to a man. The gas hazard near the houses has been assessed by continuously monitoring the CO 2 and H 2S concentration in the air at 75 cm from the ground by means of two automatic stations. Certain environmental parameters (wind direction and speed; atm P, T, humidity and rainfall) were also

  19. Early and Late Retrieval of the ALN Removable Vena Cava Filter: Results from a Multicenter Study

    International Nuclear Information System (INIS)

    Retrieval of removable inferior vena cava (IVC) filters in selected patients is widely practiced. The purpose of this multicenter study was to evaluate the feasibility and results of percutaneous removal of the ALN removable filter in a large patient cohort. Between November 2003 and June 2006, 123 consecutive patients were referred for percutaneous extraction of the ALN filter at three centers. The ALN filter is a removable filter that can be implanted through a femoral/jugular vein approach and extracted by the jugular vein approach. Filter removal was attempted after an implantation period of 93 ± 15 days (range, 6-722 days) through the right internal jugular vein approach using the dedicated extraction kit after control inferior vena cavography. Following filter removal, vena cavograms were obtained in all patients. Successful extraction was achieved in all but one case. Among these successful retrievals, additional manipulation using a femoral approach was needed when the apex of the filter was close to the IVC wall in two patients. No immediate IVC complications were observed according to the postimplantation cavography. Neither technical nor clinical differences between early and late filter retrieval were noticed. Our data confirm the safety of ALN filter retrieval up to 722 days after implantation. In infrequent cases, additional endovenous filter manipulation is needed to facilitate extraction.

  20. Dynamic Limb Bioimpedance and Inferior Vena Cava Ultrasound in Patients Undergoing Hemodialysis.

    Science.gov (United States)

    Tiba, Mohamad H; Belmont, Barry; Heung, Michael; Theyyunni, Nik; Huang, Robert D; Fung, Christopher M; Pennington, Amanda J; Cummings, Brandon C; Draucker, Gerard T; Shih, Albert J; Ward, Kevin R

    2016-01-01

    Assessment of volume status in critically ill patients poses a challenge to clinicians. Measuring changes in the inferior vena cava (IVC) diameter using ultrasound is becoming a standard tool to assess volume status. Ultrasound requires physicians with significant training and specialized expensive equipment. It would be of significant value to be able to obtain this measurement continuously without physician presence. We hypothesize that dynamic changes in limb's bioimpedance in response to respiration could be used to predict changes in IVC. Forty-six subjects were tested a hemodialysis session. Impedance was measured via electrodes placed on the arm. Simultaneously, the IVC diameter was assessed by ultrasound. Subjects were asked to breathe spontaneously and perform respiratory maneuvers using a respiratory training device. Impedance (dz) was determined and compared with change in IVC diameter (dIVC; r = 0.76, p < 0.0001). There was significant relationship between dz and dIVC (p< 0.0001). Receiver-operator curves for dz at thresholds of dIVC (20% to70%) demonstrated high predictive power with areas under the curves (0.87-0.99, p < 0.0001). This evaluation suggests that real-time dynamic changes in limb impedance are capable of tracking a wide range of dynamic dIVC. This technique might be a suitable surrogate for monitoring real-time changes in dIVC to assess intravascular volume status. PMID:26919184

  1. Nephron Sparing Surgery for Renal Angiomyolipoma with Inferior Vena Cava Thrombus in Tuberous Sclerosis

    Directory of Open Access Journals (Sweden)

    Adrien Riviere

    2014-01-01

    Full Text Available Introduction. Angiomyolipoma is a common benign renal tumor. It is associated with Tuberous Sclerosis Complex (TSC in 20% of patients. Angiomyolipomas are classically multiple, bilateral, and growing; they may lead to complications such as Wunderlich syndrome or, in rare cases, to venous extension. Observation. a 74-year-old woman with TSC presented with an angiomyolipoma of the right kidney with inferior vena cava (IVC fatty thrombus. She underwent partial nephrectomy and thrombectomy. After a 7-year follow-up there was no evidence of recurrence or metastasis and her renal function was preserved. Review of Literature. It is the 44th reported angiomyolipoma associated with IVC thrombus. The mean size of angiomyolipomas was 86.1 mm and 67.4% of patients were symptomatic. Pulmonary embolism was found in 6 patients. There were 2 cases of recurrence/metastatic outcome after radical nephrectomy and thrombectomy. They were associated with epithelioid form. The mean size of epithelioid tumors was significantly bigger than in classical angiomyolipomas (127.1 mm versus 82.6 mm, P=0.037. With a median follow-up of 12 months, 91.3% of patients were recurrence and metastasis free, with 3 cases of nephron sparing surgery. Conclusion. Nephron sparing surgery for angiomyolipoma with IVC fatty thrombus can be safely performed in TSC, even in sporadic angiomyolipoma.

  2. Titanium greenfield inferior vena cava filter; effectiveness of percutaneous placement for prevention of pulmonary embolism

    Energy Technology Data Exchange (ETDEWEB)

    Jeong, Bong Gak; Hahn, Seong Tai; Jung, Jung Im; Lee, Sang Hoon; Koh, Ki Young; Park, Seog Hee; Shinn, Kyung Sub [The Catholic Univ. of Korea, Seoul (Korea, Republic of)

    2000-11-01

    To evaluate the effectiveness of percutaneous placement of a Greenfield titanium filter in the inferior vena cava (IVC) for the prevention of pulmonary embolism (PE) in patients with deep vein thrombosis (DVT). Twelve patients with DVT underwent percutaneous Greenfield titanium filter placement. The indications included recurrent pulmonary embolism or failed anticoagulation therapy in six patients, extensive PE in three, and prophylaxis for high risk of PE in the remaining three. In all cases the filter was positioned after confirming the anatomy, patency, and presence of thrombosis of the IVC and renal veins by inferior vena cavography. Long-term follow-up study involved clinical evaluation, plain radiography, Doppler ultrasonography and CT scanning. Filter placement [infrarenal in ten patients (83%) and suprarenal in two (17%)] was technically successful in all cases (100%). The venous approach involved the right femoral vein in eight patients (67%) and the right internal jugular vein in four (33%). Complications included overlapping of the filter legs in three patients (25%), and misplacement in one (8%). After filter placement, no further PE developed. In all of five patients followed up for two years, the IVC maintained patency without evidence of caval perforation or occlusion. In patients with DVT, percutaneous placement of a Greenfield titanium filter is a safe and effective method for the prevention of PE.

  3. Role of inferior vena cava filter implantation in preventing pulmonary embolism

    International Nuclear Information System (INIS)

    A retrospective review of all patients undergoing IVC filter implantation at Shifa International Hospital, Islamabad, from June 2004 to June 2006 was conducted to study the indications of inferior vena cava (IVC) filter use and impact on short-term morbidity/mortality. A total of 17 patients received IVC filters. Five patients were excluded due to data loss. One month clinical followup was available for 12 patients and 6 months follow-up was also available for 4 of 12 patients. The underlying disease was deep venous thrombosis (DVT) with pulmonary embolism (PE) in 6 (50%), DVT without PE in 4 (33.3%) and PE with negative duplex scan for DVT in 2 (16.6%) patients, respectively. Indications for IVC filter implantation were DVT and/or PE with contraindication to anticoagulation in 8 (66.7%) and DVT and/or PE with complications of anticoagulation in 4 (33.3%) patients. No procedure-related complications were noted in all 17 patients. Three patients (25%) died of non-PE related causes during the 1st month. There were no PE related mortalities at 6 months. This data set indicates that IVC filter implantation is a safe procedure with no short-term morbidity/mortality and potential long-term mortality benefit. (author)

  4. Titanium greenfield inferior vena cava filter; effectiveness of percutaneous placement for prevention of pulmonary embolism

    International Nuclear Information System (INIS)

    To evaluate the effectiveness of percutaneous placement of a Greenfield titanium filter in the inferior vena cava (IVC) for the prevention of pulmonary embolism (PE) in patients with deep vein thrombosis (DVT). Twelve patients with DVT underwent percutaneous Greenfield titanium filter placement. The indications included recurrent pulmonary embolism or failed anticoagulation therapy in six patients, extensive PE in three, and prophylaxis for high risk of PE in the remaining three. In all cases the filter was positioned after confirming the anatomy, patency, and presence of thrombosis of the IVC and renal veins by inferior vena cavography. Long-term follow-up study involved clinical evaluation, plain radiography, Doppler ultrasonography and CT scanning. Filter placement [infrarenal in ten patients (83%) and suprarenal in two (17%)] was technically successful in all cases (100%). The venous approach involved the right femoral vein in eight patients (67%) and the right internal jugular vein in four (33%). Complications included overlapping of the filter legs in three patients (25%), and misplacement in one (8%). After filter placement, no further PE developed. In all of five patients followed up for two years, the IVC maintained patency without evidence of caval perforation or occlusion. In patients with DVT, percutaneous placement of a Greenfield titanium filter is a safe and effective method for the prevention of PE

  5. Bird's nest versus the Kimray-Greenfield inferior vena cava filter: Randomized clinical study

    International Nuclear Information System (INIS)

    A randomized clinical study was conducted comparing the percutaneously introduced bird's nest inferior vena cava (IVC) filter and the Kimray-Greenfield IVC filter. Study end points included recurrent pulmonary embolism, new or worse leg venous stasis symptoms, IVC thrombosis, and ease of filter introduction. Of the 109 patients in the study, 58 were randomly assigned to the BN and 51 to the KG filter. Demographic factors were comparable between the two groups. Follow-up entailed cavography, noninvasive assessment of the femoral veins, and standardized telephone interviews. The follow-up period was extended to 1 year after filter insertion. Results for the bird's nest versus the Kimray-Greenfield filter respectively were as follows: death due to massive pulmonary embolism, 3% versus 5%; recurrent pulmonary embolism, 1.5% versus 7.5%; filter migration, 1.1% versus 0.0%; IVC thrombosis, 6% versus 2.5%; new or worse leg edema, 28.5% versus 22%; ease of introduction (qualitative), maximal versus minimal; patient discomfort (qualitative), minimal versus maximal. The authors conclude the bird's nest filter is better than the Kimray-Greenfield filter in terms of prevention of recurrent pulmonary embolism and ease of introduction. In terms of venous stasis, the bird's nest filter is not better and may be worse than the Kimray-Greenfield filter. Filter migration is a problem with the bird's nest filter

  6. On determining the characteristics of a Greenfield Inferior Vena Cava Filter using CFD

    Science.gov (United States)

    Swaminathan, Tirumani; Hu, Howard; Patel, Aalpen

    2004-11-01

    In those patients with deep venous thrombosis (DVT) or those at a high risk for DVT, and who have contraindications to or are unresponsive to anticoagulation therapy, vena cava filters are often used to prevent recurrent pulmonary emboli. Ideally, the filter should be efficacious while being non-thrombogenic and non-impeding to the blood flow. In reality, the filter has to establish a balance between clot capture efficiency and flow impedance before and after clot capture. The development and use of numerical tools to study the characteristics of filters and its application to the case of a Greenfield filter has been presented here. A detailed model resolving the flow field around the filter to a fine detail is described. The thrombogenecity of the filter in un-occluded flows is determined by analyzing plots of shear stresses and velocity fields. To evaluate a filter's clot capturing efficacy, a Thin Wire Model (TWM) has been developed and used in conjunction with a moving finite element scheme to study the probability of clot capturing for the Greenfield filter.

  7. La recepción de la huelga de Asturias en la prensa de izquierdas de Nueva York: nuevos datos sobre María Teresa León y Rafael Alberti en 1935

    Directory of Open Access Journals (Sweden)

    Pulido Mendoza, Manuel

    2010-06-01

    Full Text Available Although the Alberti-León couple’s long voyage in the year of 1935 is well known, still are some questions to answer about the labour developed by both writers during the month they visited United States, just before they continued their trip towards Central America and the Caribbean. In the present article I show a sorted list of facts under the light of new documental discoveries and within the context of the reception of the events of the Asturias’ revolutionary strike in the New York leftist newspapers and press.Aunque se conoce bien el periplo norteamericano de los Alberti-León durante el año 1935, aún quedan algunos interrogantes por contestar acerca de la labor desarrollada por ambos escritores durante el mes que visitaron los Estados Unidos, antes de continuar su viaje por América Central y el Caribe. En el presente artículo presento una relación ordenada de los hechos de este episodio a la luz de nuevos hallazgos documentales y dentro del contexto de la recepción de los sucesos de la huelga revolucionaria de Asturias en la prensa de izquierdas neoyorquina.

  8. Tronco de coronária esquerda ocluso secundário a Lues terciária Tronco de coronaria izquierda ocluido secundario a Lúes terciaria Occlusion of the left coronary trunk secondary to tertiary syphilis

    Directory of Open Access Journals (Sweden)

    Ricardo Wang

    2009-09-01

    Full Text Available Paciente de 27 anos, portador de sífilis terciária, manifestando isquemia miocárdica, com angina instável, secundária à oclusão do tronco da coronária esquerda. O diagnóstico foi confirmado pelos achados da sorologia e da patologia do fragmento da aorta.Paciente de 27 años, portador de sífilis terciaria, manifestando isquemia miocárdica, con angina inestable, secundaria a la oclusión del tronco de la coronaria izquierda. El diagnóstico fue confirmado por los resultados de la serología y de la patología del fragmento de la aorta.A 27-year-old patient with tertiary syphilis, manifested as myocardial ischemia, presenting unstable angina, secondary to left coronary trunk occlusion. The diagnosis was confirmed by the serological findings and the pathological assessment of the aorta fragment.

  9. Implante intencional de filtros de veia cava em ambas as veias ilíacas comuns: relato de caso e revisão da literatura Intentional placement of vena cava filters in both iliac veins: case report and literature review

    Directory of Open Access Journals (Sweden)

    Daniel Queiroz Neves

    2010-12-01

    Full Text Available Os filtros de veia cava são utilizados para impedir a passagem de êmbolos dos membros inferiores para as artérias pulmonares e, normalmente, são colocadas imediatamente abaixo das veias renais. Em alguns casos, no entanto, existem dificuldades técnicas incomuns que devem ser superadas para tratar adequadamente alguns pacientes. Relatamos o caso de uma paciente em cujas veias ilíacas comuns foram implantados filtros de veia cava devido à baixa implantação das veias renais e da veia cava inferior curta.Vena cava filters are used to prevent the passage of emboli from the lower limbs to the pulmonary arteries and normally are placed immediately below the renal veins. In some cases however there are unusual technical difficulties that must be overcome to properly treat some patients. We report a case of a patient in whose common iliac veins vena cava filters were deployed, due to the lower implantation of renal veins and a short inferior vena cava.

  10. Estrutura, ultraestrutura e morfometria da veia cava de paca (Cuniculus paca Linnaeus, 1766 criada em cativeiro

    Directory of Open Access Journals (Sweden)

    Sérgio Pinter Garcia Filho

    2013-05-01

    Full Text Available A paca (Cuniculus paca é o segundo maior roedor da fauna brasileira. Apresenta carne de excelente qualidade, o que incentiva a criação comercial. Além disso, este animal pode tornar-se uma opção válida em experimentação embora poucas sejam as informações detalhadas sobre sua morfologia. Assim, objetivou-se descrever a morfologia, morfometria e ultraestrutura de segmentos das porções cranial e caudal da veia cava de quatro pacas (Cuniculus paca adultas excedentes do plantel do Setor de Animais Silvestres do Departamento de Zootecnia da FCAV-Unesp. Os segmentos venosos foram analisados à microscopia de luz e à microscopia eletrônica de varredura. Foram mensuradas as espessuras do complexo formado pelas túnicas íntima e média, além da túnica adventícia e analisou-se os resultados pela estatística descritiva, teste "T" pareado (p<0,05. Em relação à espessura das túnicas estudadas, comprovou-se que os valores da espessura das túnicas íntima, média e adventícia, para todos os animais, foram significativamente maiores no segmento cranial. As camadas das paredes dos vasos apresentaram variações entre si quanto à estrutura e espessura, supostamente devido a uma adaptação à exigência funcional.

  11. Seapolynol Extracted from Ecklonia cava Inhibits Adipocyte Differentiation in Vitro and Decreases Fat Accumulation in Vivo

    Directory of Open Access Journals (Sweden)

    Hui-Jeon Jeon

    2015-12-01

    Full Text Available Seapolynol (SN is a polyphenol mixture derived from Ecklonia cava. We evaluated the effects of SN on lipid accumulation in adipocytes, zebrafish, and mice. SN effectively inhibited lipid accumulation in three experimental models by suppressing adipogenic factors. Triglyceride synthetic enzymes such as diacylglycerol acyltransferase 1 (DGAT1 and GPAT3 were also downregulated by SN. This SN-induced inhibition of adipogenic factors was shown to be due to the regulatory effect of SN on early adipogenic factors; SN downregulated the expression of Krueppel-like factor 4 (KLF4, KLF5, CCAAT-enhancer-binding protein β (C/EBPβ, C/EBPδ, and Protein C-ets-2 (ETS2, while KLF2, an anti-early adipogenic factor, was upregulated by SN. SN-mediated inhibition in early adipogenesis was closely correlated with the inhibition of mitotic clonal expansion via cell cycle arrest. SN inhibited cell cycle progression by suppressing cell cycle regulators, such as cyclin A, cyclinD, and pRb but increased p27, a cell cycle inhibitor. In a mouse study, SN effectively reduced body weight and plasma lipid increases induced by a high-fat diet; triglycerides, total cholesterol, and low-density lipoprotein (LDL levels were markedly reduced by SN. Moreover, SN remarkably improved high-fat-diet-induced hepatic lipid accumulation. Furthermore, SN activated AMP-activated protein kinase-α (AMPKα, an energy sensor, to suppress acetyl-coA carboxylase (ACC, inhibiting lipid synthesis. Our study suggests that SN may be an edible agent that can play a positive role in prevention of metabolic disorders.

  12. Seapolynol Extracted from Ecklonia cava Inhibits Adipocyte Differentiation in Vitro and Decreases Fat Accumulation in Vivo.

    Science.gov (United States)

    Jeon, Hui-Jeon; Choi, Hyeon-Son; Lee, Yeon-Joo; Hwang, Ji-Hyun; Lee, Ok-Hwan; Seo, Min-Jung; Kim, Kui-Jin; Lee, Boo-Yong

    2015-01-01

    Seapolynol (SN) is a polyphenol mixture derived from Ecklonia cava. We evaluated the effects of SN on lipid accumulation in adipocytes, zebrafish, and mice. SN effectively inhibited lipid accumulation in three experimental models by suppressing adipogenic factors. Triglyceride synthetic enzymes such as diacylglycerol acyltransferase 1 (DGAT1) and GPAT3 were also downregulated by SN. This SN-induced inhibition of adipogenic factors was shown to be due to the regulatory effect of SN on early adipogenic factors; SN downregulated the expression of Krueppel-like factor 4 (KLF4), KLF5, CCAAT-enhancer-binding protein β (C/EBPβ), C/EBPδ, and Protein C-ets-2 (ETS2), while KLF2, an anti-early adipogenic factor, was upregulated by SN. SN-mediated inhibition in early adipogenesis was closely correlated with the inhibition of mitotic clonal expansion via cell cycle arrest. SN inhibited cell cycle progression by suppressing cell cycle regulators, such as cyclin A, cyclinD, and pRb but increased p27, a cell cycle inhibitor. In a mouse study, SN effectively reduced body weight and plasma lipid increases induced by a high-fat diet; triglycerides, total cholesterol, and low-density lipoprotein (LDL) levels were markedly reduced by SN. Moreover, SN remarkably improved high-fat-diet-induced hepatic lipid accumulation. Furthermore, SN activated AMP-activated protein kinase-α (AMPKα), an energy sensor, to suppress acetyl-coA carboxylase (ACC), inhibiting lipid synthesis. Our study suggests that SN may be an edible agent that can play a positive role in prevention of metabolic disorders. PMID:26690099

  13. Circulating microRNA profile in patients with membranous obstruction of the inferior vena cava

    Science.gov (United States)

    SUN, GUI-XIANG; SU, YONG; LI, YING; ZHANG, YA-FENG; XU, LI-CHUN; ZU, MAO-HENG; HUANG, SHUI-PING; ZHANG, JIN-PENG; LU, ZHAO-JUN

    2016-01-01

    Membranous obstruction of the inferior vena cava (MOVC) is a common type of Budd-Chiari syndrome. However, the pathogenesis of MOVC has not been fully elucidated. Recent studies demonstrated that microRNAs (miRNAs or miRs) are involved in multiple diseases. To the best of our knowledge, specific changes in the expression of miRNAs in MOVC patients have not been previously assessed. The present study used a microarray analysis, followed by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) validation, with the aim to access the miRNA expression levels in the plasma of 34 MOVC patients, compared with those in healthy controls. The results revealed a total of 16 differentially expressed miRNAs in MOVC patients. Subsequently, RT-qPCR analysis verified the statistically consistent expression of 5 selected miRNAs (miR-125a-5p, miR-133b, miR-423-5p, miR-1228-5p and miR-1266), in line with the results of the microarray analysis. These 5 miRNAs, which were described as crucial regulators in numerous biological processes and vascular diseases, may play an important role in the pathogenesis of MOVC. Bioinformatics analysis of target genes of the differentially expressed miRNAs revealed that these predicted targets were significantly enriched and involved in several key signaling pathways important for MOVC, including the ErbB, Wnt, MAPK and VEGF signaling pathway. In conclusion, miRNAs may involve in multiple signaling pathways contributing to the pathological processes of MOVC. The present study offers an intriguing new perspective on the involvement of miRNAs in MOVC; however, the precise underlying mechanisms require further validation. PMID:26997997

  14. Inferior vena cava filters in the management of cancer-associated venous thromboembolism: a systematic review

    Directory of Open Access Journals (Sweden)

    Rachna Raman

    2011-12-01

    Full Text Available This study systematically reviews outcomes after inferior vena cava (IVC filtration in cancer-associated venous thromboembolism (VTE. A comprehensive review of the English language literature was performed using MEDLINE, COCHRANE library, Embase and CINAHL on outcomes (i.e., pulmonary embolism, recurrent DVT, postphlebitic syndrome and survival following IVC filtration in cancer-associated VTE. Fourteen studies with 2,154 cancer patients receiving IVC filters post-VTE were included. All were observational studies. The mean duration of followup was 0.7–38 months and mean patient age was 56.8– 68 years. Among study participants, 47–87% had stage 3 or 4 cancers. Of the 47–93% of filters inserted for contraindications to anticoagulation (AC, 10–33% were placed for relative contraindications. Recurrent PE was seen in 0–6%, fatal PE in 0–4.5%, recurrent DVT in 0–18.2%, postphlebitic syndrome (PPS in 0–2.7%, and IVC thrombosis (ICVT in 3% of cancer patients. Median survival post-filter insertion was 2–10 months. Evidence supporting the utility of IVC filter insertion in cancer-associated VTE is limited to observational studies only. Preliminary data demonstrate similar safety and efficacy of filters in cancer and noncancer populations. The combination of filters and anticoagulation is no more effective than either modality alone. Retrievable filters are an attractive option for prevention of VTE in the presence of temporary risk factors or temporary contraindications to anticoagulation in patients who have a reasonable life expectancy, but there is no evidence to support their preferential use in patients with advanced malignancy.

  15. Inferior vena cava filters in cancer patients: to filter or not to filter

    Directory of Open Access Journals (Sweden)

    Hikmat Abdel-Razeq

    2011-03-01

    Full Text Available Hikmat Abdel-Razeq1, Asem Mansour2, Yousef Ismael1, Hazem Abdulelah11Department of Internal Medicine, 2Department of Radiology, King Hussein Cancer Center, Amman, JordanPurpose: Cancer and its treatment are recognized risk factors for venous thromboembolism (VTE; active cancer accounts for almost 20% of all newly diagnosed VTE. Inferior vena cava (IVC filters are utilized to provide mechanical thromboprophylaxis to prevent pulmonary embolism (PE or to avoid bleeding from systemic anticoagulation in high-risk situations. In this report, and utilizing a case study, we will address the appropriate utilization of such filters in cancer patients.Methods: The case of a 43-year-old female patient with rectal cancer, who developed deep vein thrombosis following a complicated medical course, will be presented. The patient was anticoagulated with a low molecular weight heparin, but a few months later and following an episode of bleeding, an IVC filter was planned. Using the PubMed database, articles published in English language addressing issues related to IVC filters in cancer patients were accessed and will be presented.Results: Many recent studies questioned the need to insert IVC filters in advanced-stage cancer patients, particularly those whose anticipated survival is short and prevention of PE may be of little clinical benefit and could be a poor utilization of resources.Conclusion: Systemic anticoagulation can be safely offered for the majority of cancer patients. When the risk of bleeding or pulmonary embolism is high, IVC filters can be utilized. However, placement of such filters should take into consideration the stage of disease and life expectancy of such patients.Keywords: anticoagulation, bleeding, chemotherapy

  16. Collateral circulation in ferrets (Mustela putorius) during temporary occlusion of the caudal vena cava.

    Science.gov (United States)

    Calicchio, Kristina W; Bennett, R Avery; Laraio, Leonard C; Weisse, Chick; Zwingenberger, Allison L; Rosenthal, Karen L; Johnston, Matthew S; Campbell, Vicki L; Solomon, Jeffrey A

    2016-05-01

    OBJECTIVE To determine whether extent of collateral circulation would change during temporary occlusion of the caudal vena cava (CVC) in ferrets (Mustela putorius), a pressure change would occur caudal to the occlusion, and differences would exist between the sexes with respect to those changes. ANIMALS 8 adult ferrets (4 castrated males and 4 spayed females). PROCEDURES Ferrets were anesthetized. A balloon occlusion catheter was introduced through a jugular vein, passed into the CVC by use of fluoroscopy, positioned cranial to the right renal vein, and inflated for 20 minutes. Venography was performed 5 and 15 minutes after occlusion. Pressure in the CVC caudal to the occlusion was measured continuously. A CBC, plasma biochemical analysis, and urinalysis were performed immediately after the procedure and 2 or 3 days later. RESULTS All 8 ferrets survived the procedure; no differences were apparent between the sexes. Vessels providing collateral circulation were identified in all ferrets, indicating blood flow to the paravertebral venous plexus. Complications observed prior to occlusion included atrial and ventricular premature contractions. Complications after occlusion included bradycardia, seizures, and extravasation of contrast medium. Mean baseline CVC pressure was 5.4 cm H2O. During occlusion, 6 ferrets had a moderate increase in CVC pressure (mean, 24.3 cm H2O) and 2 ferrets had a marked increase in CVC pressure to > 55.0 cm H2O. CONCLUSIONS AND CLINICAL RELEVANCE Caval occlusion for 20 minutes was performed in healthy ferrets with minimal adverse effects noted within the follow-up period and no apparent differences between sexes. The CVC pressure during occlusion may be prognostic in ferrets undergoing surgical ligation of the CVC, which commonly occurs during adrenal tumor resection. PMID:27111022

  17. Use of a Trellis Device for Endovascular Treatment of Venous Thrombosis Involving a Duplicated Inferior Vena Cava

    International Nuclear Information System (INIS)

    Congenital anomalies of the inferior vena cava (IVC) are increasingly recognized with CT and venography techniques. Although many patients with IVC anomalies are asymptomatic, recent studies have suggested an association with venous thromboembolism. We report the case of a 62-year-old woman with extensive venous clot involving the infrarenal segment of a duplicated left IVC who underwent pharmacomechanical thrombectomy and tissue plasminogen activator catheter-directed thrombolysis with complete deep venous thrombosis resolution. To our knowledge this is the first reported case in the English literature of the use of a Trellis thrombectomy catheter in the setting of duplicated IVC

  18. Use of a Trellis Device for Endovascular Treatment of Venous Thrombosis Involving a Duplicated Inferior Vena Cava

    Energy Technology Data Exchange (ETDEWEB)

    Saettele, Megan R., E-mail: SaetteleM@umkc.edu [University of Missouri, Kansas City, Department of Radiology, Saint Luke' s Hospital (United States); Morelli, John N., E-mail: dr.john.morelli@gmail.com [Texas A and M University Health Science Center, Department of Radiology, Scott and White Clinic and Hospital (United States); Chesis, Paul; Wible, Brandt C. [University of Missouri, Kansas City, Department of Interventional Radiology, Saint Luke' s Hospital (United States)

    2013-12-15

    Congenital anomalies of the inferior vena cava (IVC) are increasingly recognized with CT and venography techniques. Although many patients with IVC anomalies are asymptomatic, recent studies have suggested an association with venous thromboembolism. We report the case of a 62-year-old woman with extensive venous clot involving the infrarenal segment of a duplicated left IVC who underwent pharmacomechanical thrombectomy and tissue plasminogen activator catheter-directed thrombolysis with complete deep venous thrombosis resolution. To our knowledge this is the first reported case in the English literature of the use of a Trellis thrombectomy catheter in the setting of duplicated IVC.

  19. Influence of temperature during the second fermentation and aging of sparkling wine (Cava on the properties of the foam

    Directory of Open Access Journals (Sweden)

    Esteruelas Mireia

    2015-01-01

    Full Text Available The aim of this study was to determine the influence of temperature during the second fermentation and aging of spar- kling wines (AOC Cava on their foam properties. The results indicate that sparkling wines elaborated at 12 °C have a maximum height (HM and a stable height (HS of the foam significantly higher than the corresponding ones produced at 16 °C. This better foam properties observed in sparkling wines obtained at low temperature are probably related with their higher protein and oligosaccharide concentration.

  20. Two Stage Complex Embolization of an Arteriovenous Fistula between the Right Common Iliac Artery and the Inferior Vena Cava

    Directory of Open Access Journals (Sweden)

    Marc Gingell Littlejohn

    2009-01-01

    Full Text Available

    We  present an interesting case of a symptomatic high flow AV fistula between the right common iliac artery (CIA and the inferior vena cava (IVC, successfully treated by endovascular coil embolization. The patient was found to have a right lower polar renal artery crossing the ipsilateral ureter arising from the CIA, causing pelvi-ureteric junction (PUJ obstruction and recurrent pyelonephritis.  It is hypothesized that this fistula arising from the lower polar renal artery and entering the IVC, may have occurred as a result of trauma during a previous pyeloplasty, or a pathologically induced process of angiogenesis stemming from recurrent pyelonephritis.

  1. Real-time flow - determination of vena cava inferior on two different levels via 'RACE' pulse sequence in MR

    International Nuclear Information System (INIS)

    A new and simple parameter for quantiative evaluation of liver perfusion is outlined: Post-sinusoidal quantitative measurement of the entire liver venous flow: This is a result of the differences in evaluated flow volumes at two different levels in the inferior V.cava. The first level is the height of diaphragm, and the second is situated just cranial of the renal vessels. Normal values obtained from a group of healthy volunteers are presented. A gradient-echo pulse sequence called RACE, enabling flow measurements in real-time, is outlined. (orig.)

  2. CT Findings of Intrarenal Yolk Sac Tumor with Tumor Thrombus Extending into the Inferior Vena Cava: A Case Report

    Energy Technology Data Exchange (ETDEWEB)

    Lin, Shao Chun; Li, Xue Hua; Sun, Can Hui; Feng, Shi Ting; Peng, Zhen Peng; Huang, Si Yun; Li, Zi Ping [Dept. of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou (China)

    2014-10-15

    Yolk sac tumor (YST) is a rare germ cell neoplasm of childhood that usually arises from the testis or ovary. The rare cases of YST in various extragonadal locations have been reported, but the primary intrarenal YST is even more uncommon. Here, we report a case of a primary intrarenal YST with tumor thrombus of the inferior vena cava and left renal vein in a 2-year-old boy, with an emphasis on the CT features. To our knowledge, this is the first reported case of an intrarenal YST with intravascular involvement.

  3. Limitations of using synthetic blood clots for measuring in vitro clot capture efficiency of inferior vena cava filters

    Directory of Open Access Journals (Sweden)

    Robinson RA

    2013-05-01

    Full Text Available Ronald A Robinson, Luke H Herbertson, Srilekha Sarkar Das, Richard A Malinauskas, William F Pritchard, Laurence W GrossmanOffice of Science and Engineering Laboratories, Center for Devices and Radiological Health, US Food and Drug Administration, Silver Spring, MD, USAAbstract: The purpose of this study was first to evaluate the clot capture efficiency and capture location of six currently-marketed vena cava filters in a physiological venous flow loop, using synthetic polyacrylamide hydrogel clots, which were intended to simulate actual blood clots. After observing a measured anomaly for one of the test filters, we redirected the focus of the study to identify the cause of poor clot capture performance for large synthetic hydrogel clots. We hypothesized that the uncharacteristic low clot capture efficiency observed when testing the outlying filter can be attributed to the inadvertent use of dense, stiff synthetic hydrogel clots, and not as a result of the filter design or filter orientation. To study this issue, sheep blood clots and polyacrylamide (PA synthetic clots were injected into a mock venous flow loop containing a clinical inferior vena cava (IVC filter, and their captures were observed. Testing was performed with clots of various diameters (3.2, 4.8, and 6.4 mm, length-to-diameter ratios (1:1, 3:1, 10:1, and stiffness. By adjusting the chemical formulation, PA clots were fabricated to be soft, moderately stiff, or stiff with elastic moduli of 805 ± 2, 1696 ± 10 and 3295 ± 37 Pa, respectively. In comparison, the elastic moduli for freshly prepared sheep blood clots were 1690 ± 360 Pa. The outlying filter had a design that was characterized by peripheral gaps (up to 14 mm between its wire struts. While a low clot capture rate was observed using large, stiff synthetic clots, the filter effectively captured similarly sized sheep blood clots and soft PA clots. Because the stiffer synthetic clots remained straight when approaching the

  4. Iliac vein thrombosis: a case report of treatment with inferior vena cava filter, urokinase and vascular stent

    International Nuclear Information System (INIS)

    Thrombolytic therapy and placement of vascular metallic stent can be used for the treatment of iliac venous stenosis and thrombosis, but these treatments increase the risk of pulmonary thromboembolism. Inferior vena cava filter was developed for the prevention of recurrent pulmonary thromboembolism due to lower extremity deep vein thrombosis and has been regarded as relatively safe and effective treatment modality. We experienced good result of combined treatment of inferior vena filter, thrombolytic therapy and placement of right iliac venous metallic stent in a patient with severe stenosis and thrombosis at both common iliac veins

  5. 78 FR 21116 - Superior Supplier Incentive Program

    Science.gov (United States)

    2013-04-09

    ... Department of the Navy Superior Supplier Incentive Program AGENCY: Department of the Navy, DoD. ACTION... policy that will establish a Superior Supplier Incentive Program (SSIP). Under the SSIP, contractors that... powerful incentives that can be used to motivate contractors to perform at a high level. DoN and...

  6. Paso superior en una ladera

    Directory of Open Access Journals (Sweden)

    Bender, O.

    1965-07-01

    Full Text Available The Redwood highway, through the Californian forest, runs on a viaduct, as it crosses a mountain slope of about 45° inclination. The firm ground is fairly deep, and as an additional constructional difficulty, it was necessary to respect the natural beauty of the countryside. A structure of portal frames were built, forming a number of short spans. These spans were bridged with metal girders, on which a 19 m wide deck was placed. The columns are hollow and have a transversal cross beam, to join each pair. There was difficulty in excavating the foundations for the columns, as it was necessary to dig through the soft top soil, and also prevent this soil from hurting the trunks of the forest trees. Another significant difficulty in the construction of this viaduct was the access to the working site, since there were no suitable platforms from which to operate the appropriate machinery. This made it necessary to do a lot of the work by manual operation. As one of the edges of the deck is very close to the mountain side, a supporting beam was erected on this side. It was made of concrete, on metal piles. The formwork for the deck structure was placed on the concrete stems of the supporting piles.La autopista denominada Redwood (California salva, con un paso superior, la ladera de un bosque cuya pendiente es del 1/1. El terreno firme se halla a bastante profundidad, añadiéndose, a los naturales problemas de la construcción, el imperativo de respetar la belleza agreste del paraje. La solución adoptada consiste en una estructura porticada, con varios tramos de pequeñas luces, salvados con vigas metálicas, sobre los que se coloca la losa del tablero, de 19 m de anchura total. Los soportes están constituidos por pórticos de dos montantes huecos (con bases de hormigón en masa por debajo del suelo, hasta el firme coronados por un cabezal. La perforación de pozos para el hormigonado de los montantes presentaba la dificultad de atravesar el terreno

  7. Estimation of Right Atrial Pressure from the Inspiratory Collapse of the Inferior Vena cava in Pediatric Patients

    Directory of Open Access Journals (Sweden)

    Gholamhossein Ajami

    2010-06-01

    Full Text Available Objective: Paucity of data exists between mean right atrial pressure (RAP and inferior vena cava (IVC size and collapsibility in pediatric patients with congenital heart disease.Methods: In a prospective study, fifty consecutive pediatric patients with different congenital heart diseases who had right side cardiac catheterization were studied, comparing right atrial pressure with simultaneous M-mode echocardiographic measurement of inferior vena cava diameter. Mean age of the patients was 4.96±4.05 years (30 male and 20 female. Patients were categorized into two groups according to their right atrial pressure (RAP as measured by cardiac catheterization: Group 1 (40 patients were those with mean RAP 8 mmHg when IVC diameter in inspiration was >3.6 (sensitivity of 100%, specificity of 47.5%, +LR=1.9 or if IVC diameter was >6mm in expiration (sensitivity of 70%, specificity of 87%, +LR=4.67.Conclusion: This study showed that measurement of IVC size in inspiration and expiration can be used as a reliable method for estimation of mean right atrial pressure.

  8. Long-Term Results of Vena Cava Filters: Experiences with the LGM and the Titanium Greenfield Devices

    International Nuclear Information System (INIS)

    Purpose: Vena cava filter (VCF) application is the method of choice to prevent recurrent pulmonary embolism in patients with deep venous thrombosis. Because of the reported complications after VCF placement we summarize our long-term follow-up results with the LGM and Titanium Greenfield (TG) devices. Methods: Eighty-seven LGM VCF and 17 TG VCF were placed in 104 patients (average age 64 years). The follow-up examinations were performed by color-coded duplex sonography, plain radiographs, cavography, and computed tomo-graphy (CT). The maximum observation time was 81 months. Results: Filter migration occurred in 11% (8/76) of the LGM VCF and 15% (2/13) of the TG VCF. Vena cava thrombosis was seen in 17% (13/76) of the patients with an LGM VCF and in 31% (4/13) of those with a TG VCF. The patency rate was 95% (72/76) for the LGM VCF and 92% (12/13) for the TG VCF. Pulmonary embolism was noted in 3 patients after LGM VCF insertion and in no patient after TG VCF insertion. Conclusion: A VCF should only be inserted in a patient after pulmonary embolism and when there is strict proof of the indication

  9. Gunther Tulip Inferior Vena Cava Filter Placement During Treatment for Deep Venous Thrombosis of the Lower Extremity

    International Nuclear Information System (INIS)

    Purpose. To evaluate the efficacy and safety of Gunther tulip retrievable vena cava filter (GTF) implantation to prevent pulmonary embolism during intravenously administered thrombolytic and anticoagulation therapy and interventional radiological therapy for occlusive or nonocclusive deep venous thrombosis (DVT) of the lower extremity. Methods. We evaluated placement of 55 GTFs in 42 patients with lower extremity DVT who had undergone various treatments including those utilizing techniques of interventional radiology. Results. Worsening of pulmonary embolism in patients with existing pulmonary embolism or in those without pulmonary embolism at the time of GTF insertion was avoided in all patients. All attempts at implantation of the GTF were safely accomplished. Perforation and migration experienced by one patient was the only complication. Mean period of treatment for DVT under protection from pulmonary embolism by the GTF was 12.7 ± 8.3 days (mean ± SD, range 4-37 days). We attempted retrieval of GTFs in 18 patients in whom the venous thrombus had disappeared after therapy, and retrieval in one of these 18 cases failed. GTFs were left in the vena cava in 24 patients for permanent use when the DVT was refractory to treatment. Conclusion. The ability of the GTF to protect against pulmonary embolism during treatment of DVT was demonstrated. Safety in both placement and retrieval was clarified. Because replacement with a permanent filter was not required, use of the GTF was convenient when further protection from complicated pulmonary embolism was necessary

  10. Estimation of Right Atrial Pressure from the Inspiratory Collapse of the Inferior Vena Cava in Pediatric Patients

    Directory of Open Access Journals (Sweden)

    Hamid Amoozgar

    2010-06-01

    Full Text Available Objective:Paucity of data exists between mean right atrial pressure (RAP and inferior vena cava (IVC size and collapsibility in pediatric patients with congenital heart disease.Methods:In a prospective study, fifty consecutive pediatric patients with different congenital heart diseases who had right side cardiac catheterization were studied, comparing right atrial pressure with simultaneous M-mode echocardiographic measurement of inferior vena cava diameter. Mean age of the patients was 4.96�4.05 years (30 male and 20 female. Patients were categorized into two groups according to their right atrial pressure (RAP as measured by cardiac catheterization: Group 1 (40 patients were those with mean RAP 8 mmHg when IVC diameter in inspiration was >3.6 (sensitivity of 100%, specificity of 47.5%, +LR=1.9 or if IVC diameter was >6mm in expiration (sensitivity of 70%, specificity of 87%, +LR=4.67.Conclusion:This study showed that measurement of IVC size in inspiration and expiration can be used as a reliable method for estimation of mean right atrial pressure.

  11. Superiority in value and the repugnant conclusion

    DEFF Research Database (Denmark)

    Jensen, Karsten Klint

    2007-01-01

    James Griffin has considered a weak form of superiority in value a possible remedy to the Repugnant Conclusion. In this paper, I demonstrate that, in a context where value is additive, this weaker form collapses into a stronger form of superiority. And in a context where value is non-additive, weak...... superiority does not amount to a radical value difference at all. I then spell out the consequences of these results for different interpretations of Griffin's suggestion regarding population ethics. None of them comes out very successful, but perhaps they nevertheless retain some interest....

  12. Endovascular treatment of thrombosed inferior vena cava filters: Techniques and short-term outcomes

    Directory of Open Access Journals (Sweden)

    Mohammad Arabi

    2015-01-01

    Full Text Available Purpose: To present the techniques for endovascular treatment of thrombosed filter-bearing inferior vena cavae (IVCs, along with short-term clinical and imaging follow-up. Materials and Methods: A total of 45 consecutive patients (17 females and 28 males, aged 19-79 years (mean age of 49 years, who had IVC filter placement complicated by symptomatic acute or chronic iliocaval thrombosis and underwent endovascular therapy were studied. All patients presented with lower extremity swelling and/or pain. One patient also had bilateral lower extremity swelling and chronic gastrointestinal (GI bleeding which was secondary to chronic systemic to portal venous collaterals. Patients underwent one or more of the following endovascular treatments depending on the chronicity and extent of thrombosis: (a catheter-directed thrombolysis (CDT (n = 25, (b pharmacomechanical thrombolysis (PMT (n = 15, (c balloon angioplasty (n = 45, and/or (d stent placement across the filter (n = 42. In addition, 16 patients underwent groin arteriovenous fistula (AVF creation (36% and 3 (7% had femoral venous thrombectomy to improve flow in the recanalized iliac veins and IVCs. Results: Anatomical success was achieved in all patients. Follow-up was not available in 10 patients (lost to follow-up, n = 4; expired due to comorbidities, n = 2; lost to follow-up after re-intervention, n = 4. At a mean follow-up time of 13.3 months (range 1-48 months, clinical success was achieved in 27 patients (60%, i.e. in 21 patients without re-intervention and in 6 patients with re-intervention. Clinical success was not achieved despite re-intervention in eight patients. Higher clinical success was noted in patients who did not require repeat interventions (P = 0.03 and the time to re-intervention was significantly shorter in patients who had clinical failure (P = 0.01. AVF creation did not improve the clinical success rate (P = 1. There was no significant difference in clinical success between

  13. Safety and efficacy of interventional treatment for occlusion of the entire inferior vena cava

    International Nuclear Information System (INIS)

    Objective: To evaluate the safety and efficacy of interventional treatment of occlusion of the entire inferior vena cava (IVC). Methods: The clinical data of 6 patients with entire IVC occlusion were analyzed retrospectively. All patients were diagnosed by color Doppler ultrasound and DSA. Venography was performed under local anesthesia via internal jugular vein and femoral vein approach. The occlusion of IVC and hepatic vein were treated with balloon dilatation and/or stent placement. Follow-up examination with color Doppler ultrasound was taken 1, 3, 6, 12 months after treatment and annually thereafter to assess the patency of IVC and hepatic vein. The pressure gradient of hepatic vein-right atrium and IVC-right atrium before and after interventional treatment were compared with paired t test. Results: In 5 cases, both IVC and 1 hepatic vein were recanalized successfully. In 1 case,recanalization of IVC failed,but the right hepatic vein was recanalized successfully. The mean pressure gradient of hepatic vein-right atrium decreased from (23.2 ± 2.0) cmH2O (1 cmH2O =0.098 kPa) before treatment to (8.7 ± 3.2) cmH2O after treatment in 6 cases (t=21.6, P<0.05). The mean pressure gradient of IVC-right atrium decreased from (26.6 ± 2.7) cmH2O before treatment to (9.4 ± 1.1) cmH2O after treatment (t=16.1, P<0.05). Abdominal pains occurred in 3 patients after stent implantation which disappeared in 24 hours. No other complications such as bleeding and death occurred. During a mean follow-up of (42 ± 27) months (16 to 90 months), hepatic vein patency was maintained in 6 cases and IVC patency was maintained in 5 cases. Conclusion: Interventional treatment of occlusion of the entire IVC is a safe and effective method. (authors)

  14. Obstruction of hepatic vein or inferior vena cava after liver transplantation: the diagnosis and interventional treatment

    International Nuclear Information System (INIS)

    Objective: To investigate the diagnosis and interventional therapeutic technology for the obstruction of hepatic vein (HV) or inferior vena cava (IVC) after liver transplantation. Methods: In the 831 patients who received orthotopic liver transplantation (OLT) and 26 patients who received living donor liver transplantation (LDLT), 11 cases were confirmed with HV or IVC obstruction by venography and received interventional treatment from 2 to 111 days after liver transplantation. Of the 11 patients, five had the obstruction of HV anastomosis, five had the obstruction of IVC anastomosis, and one had the obstruction of HV and IVC anastomosis. In the eleven patients, five patients underwent OLT, four patients underwent LDLT, and two pediatric patients underwent reduced-size OLT. Before interventional treatment, 9 patients function tests, clinical sympatom, and monitoring of HV or IVC flow. Pressure gradients before and after therapeutic technology of 11 cases were retrospectively analyzed. Results: In all 11 patients, CT or MRI could clearly show congested areas of the liver, and the location and degree of HV or IVC obstruction. Of the 11 patients, four with HV obstruction and five with IVC obstruction were treated with stent placement, one with HV obstruction was treated with percutaneous transluminal angioplasty (PTA), one with HV and IVC obstruction was treated with HV PTA and IVC stent placement. Interventional technical success was achieved in all patients. The venous pressure gradient across obstruction was significantly reduced from (16.5 ± 4.1) mm Hg (1 mm Hg =0.133 kPa) before the procedure to (2.9 ± 1.7) mm Hg after the procedure (t=11.5, P<0.01). Clinical improvement was noted in 10 patients except one pediatric patient who died of multiple-organs failure at the 9 th day after the treatment. During the follow-up period of 9 to 672 days, two patients with PTA treatment had recurrent HV stenosis within one month after treatment, no patient with stent

  15. Inferior vena cava filters and postoperative outcomes in patients undergoing bariatric surgery: a meta-analysis.

    Science.gov (United States)

    Kaw, Roop; Pasupuleti, Vinay; Wayne Overby, D; Deshpande, Abhishek; Coleman, Craig I; Ioannidis, John P A; Hernandez, Adrian V

    2014-01-01

    Background: Pulmonary embolism(PE)accounts for almost 40% of perioperative deaths after bariatric surgery.Placement of prophylactic inferior vena cava(IVC) filter before bariatric surgery to improve outcomes has shown varied results. We performed a meta-analysis to evaluate post- operative outcomes associated with the preoperative placement of IVC filters in these patients. Methods: A systematic review was conducted by three investigators independently in PubMed, EMBASE, the Web of Science and Scopus until February 28,2013.Our search was restricted to studies in adult patients undergoing bariatric surgery with and without IVC filters. Primary outcomes were postoperative deep vein thrombosis(DVT),pulmonary embolism (PE),and postoperative mortality. Meta-analysis used random effects models to account for heterogeneity,and Sidik- Jonkman method to account for scarcity of outcomes and studies. Associations are shown as Relative Risks(RR) and 95% Confidence Intervals(CI). Results: Seven observational studies were identified (n=102,767), with weighted average inci- dences of DVT(0.9%),PE(1.6%),and mortality(1.0%)for a follow-up ranging from 3 weeks to 3 months. Use of IVC filters was associated with an approximately 3-fold higher risk of DVT and death that was nominally significant for the former outcome, but not the latter (RR2.81,95%CI 1.33-5.97, p=0.007; and RR 3.27,95%CI0.78-13.64, p=0.1, respectively);there was no difference in the risk of PE(RR1.02,95%CI0.31-3.77,p=0.9). Moderate to high heterogeneity of effects was noted across studies. Conclusions: Placement of IVC filter before bariatric surgery Is associated with higher risk of postoperative DVT and mortality. A similar risk of PE inpatients with and without IVC filter placement cannot exclude a benefit, given the potential large imbalance in risk at baseline.Ran- domized trials are needed before IVC placement can be recommended. (SurgObesRelatDis 2015;11:268-269.) r 2015 American Society for Metabolic and

  16. Superior mesenteric artery syndrome causing growth retardation

    Directory of Open Access Journals (Sweden)

    Halil İbrahim Taşcı

    2013-03-01

    Full Text Available Superior mesenteric artery syndrome is a rare and lifethreateningclinical condition caused by the compressionof the third portion of the duodenum between the aortaand the superior mesenteric artery’s proximal part. Thiscompression may lead to chronic intermittent, acute totalor partial obstruction. Sudden weight-loss and the relateddecrease in the fat tissue are considered to be the etiologicalreason of acute stenosis. Weight-loss accompaniedby nausea, vomiting, anorexia, epigastric pain, andbloating are the leading complaints. Barium radiographs,computerized tomography, conventional angiography,tomographic and magnetic resonance angiography areused in the diagnosis. There are medical and surgical approachesto treatment. We hereby present the case ofa patient with superior mesenteric artery syndrome withdelayed diagnosis.Key words: superior mesenteric artery syndrome, nausea-vomiting, anorexia

  17. Millian superiorities and the repugnant conclusion

    DEFF Research Database (Denmark)

    Jensen, Karsten Klint

    2008-01-01

    James Griffin has considered a form of superiority in value that is weaker than lexical priority as a possible remedy to the Repugnant Conclusion. In this article, I demonstrate that, in a context where value is additive, this weaker form collapses into the stronger form of superiority. And in a...... results for different interpretations of Griffin's suggestion regarding population ethics. None of them comes out very successful, but perhaps they nevertheless retain some interest....

  18. Retrievable Guenther Tulip Vena Cava Filter in the prevention of pulmonary embolism in patients with acute deep venous thrombosis in perinatal period

    International Nuclear Information System (INIS)

    Objectives: To evaluate the feasibility and efficacy of the retrievable Guenther Tulip Vena Cava Filter in the prevention of pulmonary embolism in patients with acute deep vein thrombosis in the perinatal period and to discuss the technical demands associated with the filter's implantation and retrieval. Methods: Between 1996 until 2007, eight women (mean age 27.4 years, range 20-42 years) with acute deep iliofemoral venous thrombosis in the perinatal period of pregnancy and increased risk of pulmonary embolism during delivery were indicated for retrievable Guenther Tulip Vena Cava Filter implantation. All filters were inserted and removed under local anesthesia from the jugular approach. Results: The Guenther Tulip Vena Cava Filter was implanted suprarenally in all patients on the day of caesarean delivery. In follow-up cavograms performed just before planned filter removal, no embolus was seen in the filter in any patient. In all patients the filter was retrieved without complications on the 12th day after implantation. Conclusions: Retrievable Guenther Tulip Vena Cava Filters can be inserted and removed in patients during the perinatal period without major complications.

  19. Retrievable Guenther Tulip Vena Cava Filter in the prevention of pulmonary embolism in patients with acute deep venous thrombosis in perinatal period

    Energy Technology Data Exchange (ETDEWEB)

    Koecher, Martin [Department of Radiology, University Hospital, I.P. Pavlova 6, 775 20 Olomouc (Czech Republic)], E-mail: martin.kocher@seznam.cz; Krcova, Vera [Department of Hematooncology, University Hospital, I.P. Pavlova 6, 775 20 Olomouc (Czech Republic); Cerna, Marie [Department of Radiology, University Hospital, I.P. Pavlova 6, 775 20 Olomouc (Czech Republic); Prochazka, Martin [Department of Obstetrics and Gynaecology, University Hospital, I.P. Pavlova 6, 775 20 Olomouc (Czech Republic)

    2009-04-15

    Objectives: To evaluate the feasibility and efficacy of the retrievable Guenther Tulip Vena Cava Filter in the prevention of pulmonary embolism in patients with acute deep vein thrombosis in the perinatal period and to discuss the technical demands associated with the filter's implantation and retrieval. Methods: Between 1996 until 2007, eight women (mean age 27.4 years, range 20-42 years) with acute deep iliofemoral venous thrombosis in the perinatal period of pregnancy and increased risk of pulmonary embolism during delivery were indicated for retrievable Guenther Tulip Vena Cava Filter implantation. All filters were inserted and removed under local anesthesia from the jugular approach. Results: The Guenther Tulip Vena Cava Filter was implanted suprarenally in all patients on the day of caesarean delivery. In follow-up cavograms performed just before planned filter removal, no embolus was seen in the filter in any patient. In all patients the filter was retrieved without complications on the 12th day after implantation. Conclusions: Retrievable Guenther Tulip Vena Cava Filters can be inserted and removed in patients during the perinatal period without major complications.

  20. Análise de sensibilidade na otimização econômica de uma cava

    Directory of Open Access Journals (Sweden)

    Belisario Ascarza Flores

    2008-12-01

    Full Text Available Uma das variáveis que torna um projeto de mineração mais vulnerável à instabilidade econômica é a variação dos preços de venda dos minérios. Nesse trabalho, procedeu-se a uma análise de sensibilidade de cavas ótimas em relação à variação do preço de venda de um bem mineral. Foi gerada uma série de contornos de cavas ótimas com diferente valor presente líquido (VPL e diferentes quantidades de minério e estéril, a partir da aplicação de fatores de desconto sobre um preço de venda de minério tomado como base. Análises desse tipo são úteis para o estabelecimento do planejamento de produção de uma mina. Para esse estudo, foram utilizados dados da mina Morro da Mina da Rio Doce Manganês S.A. e, para a geração das cavas otimizadas, utilizou-se o módulo Pit Optimiser do Gemcom Surpac 6.0.One of the variables that makes the economic stability of a mining project more vulnerable is the variation of ore sale prices. In this work, a sensitivity analysis of optimum pits in relation to the variation of the sale price of ore was performed. It generated a set of optimal pits shells with different net present values (NPV and different amounts of ore and waste, and the application of discount factors of the ore's sale price was taken as the base. Analyses of this type are useful for the establishment of production planning of a mine. For this study, data obtained from the manganese mine of Morro da Mina of Rio Doce Manganês S.A. was used, and the modulate Pit Optimiser of the Gemcom Surpac 6.0 was applied to generate the optimum pits.

  1. Whisker-related afferents in superior colliculus.

    Science.gov (United States)

    Castro-Alamancos, Manuel A; Favero, Morgana

    2016-05-01

    Rodents use their whiskers to explore the environment, and the superior colliculus is part of the neural circuits that process this sensorimotor information. Cells in the intermediate layers of the superior colliculus integrate trigeminotectal afferents from trigeminal complex and corticotectal afferents from barrel cortex. Using histological methods in mice, we found that trigeminotectal and corticotectal synapses overlap somewhat as they innervate the lower and upper portions of the intermediate granular layer, respectively. Using electrophysiological recordings and optogenetics in anesthetized mice in vivo, we showed that, similar to rats, whisker deflections produce two successive responses that are driven by trigeminotectal and corticotectal afferents. We then employed in vivo and slice experiments to characterize the response properties of these afferents. In vivo, corticotectal responses triggered by electrical stimulation of the barrel cortex evoke activity in the superior colliculus that increases with stimulus intensity and depresses with increasing frequency. In slices from adult mice, optogenetic activation of channelrhodopsin-expressing trigeminotectal and corticotectal fibers revealed that cells in the intermediate layers receive more efficacious trigeminotectal, than corticotectal, synaptic inputs. Moreover, the efficacy of trigeminotectal inputs depresses more strongly with increasing frequency than that of corticotectal inputs. The intermediate layers of superior colliculus appear to be tuned to process strong but infrequent trigeminal inputs and weak but more persistent cortical inputs, which explains features of sensory responsiveness, such as the robust rapid sensory adaptation of whisker responses in the superior colliculus. PMID:26864754

  2. Terapia de resgate com amiodarona em crianças com grave disfunção ventricular esquerda causada por veneno de escorpião Terapia de rescate con amiodarona en niños con severa disfunción ventricular izquierda ocasionada por veneno de escorpión Antiadrenergic rescue therapy with amiodarone in children with severe left ventricular dysfunction secondary to scorpion envenomation

    Directory of Open Access Journals (Sweden)

    Justo J. Santiago

    2010-01-01

    ón endotraqueal y soporte respiratorio, electrocardiograma, radiografía de tórax, ecocardiograma y determinación sérica de la norepinefrina y troponina I. Los análisis se repitieron tras 12, 24 y 48 horas. Las siguientes medicaciones intravenosas se administraron: dobutamina 4-6 mcg/kg/min; amiodarona 3 mg/kg durante dos horas, con dosis de mantenimiento de 5 mg/kg/día; y furosemida 0.5 mg/kg. Amiodarona, dobutamina y furosemida se administraron durante las primeras 48 horas. Bloqueante betaadrenergicos e inhibidores de la enzima convertidora de la angiotensina se administraron hasta 48 tras la internación, una vez que el estado clínico había mejorado y la fracción de eyección ventricular izquierda se hallaba superior a un 0,35%. RESULTADOS: Al ingreso, la dosificación de la norepinefrina fue 1727,50± 794,96 pg/ml, la de troponina I 24,53 ± 14,09 ng/ml y la fracción de eyección del ventrículo izquierdo fue 0,20 ± 0,056. Tras 12 horas, los niveles séricos de norepinefrina y de troponina I disminuyeron para la mitad de los valores iniciales y la fracción de eyección aumentó para 0,32 ± 0,059. Durante las 24 y 48 horas subsiguientes, la fracción de eyección se elevó para 0,46 ± 0,045 (pBACKGROUND: Children with scorpion envenomation have massive sympathetic activation and variable degrees of left ventricular systolic dysfunction. OBJECTIVE: To evaluate a rescue protocol for children with severe left ventricular dysfunction secondary to scorpion envenomation. METHODS: Four children, after scorpion envenomation, were subjected to a rescue protocol for acute left ventricular dysfunction: Endotracheal intubation and respiratory assistance, electrocardiograms, chest x-Ray, echocardiograms and blood samples for norepinephrine and troponin I serum levels. Samples and echocardiograms were repeated at 12, 24 and 48 hours. Intravenous medications: Dobutamine: 4-6 μg/kg/min. Amiodarone: 3 mg/kg during a 2 hour period. Maintenance: 5 mg/kg/day. Furosemide: 0.5 mg

  3. Superior-subordinate relations as organizational processes

    DEFF Research Database (Denmark)

    Asmuss, Birte; Aggerholm, Helle Kryger; Oshima, Sae

    Since the emergence of the practice turn in social sciences (Golsorkhi et al. 2010), studies have shown a number of institutionally relevant aspects as achievements across time and by means of various resources (human and non-human) (Taylor & van Every 2000, Cooren et al. 2006). Such a process view...... the participants’ different orientations to “standardized” and “non-standardized” assessments (Maynard, 2003). In our data, “non-standardized” assessments are frequently oriented to as doing the work of "real" evaluations, whereas “standardized” assessments are oriented to as topic closure implicative. Accordingly......, subordinates often pursue non-standardized assessments from their superiors, while superiors use standardized assessments for balancing the task of filing relevant information and that of assessing work. With these findings, we argue that PAIs are a crucial communicative place for constituting superior...

  4. Diplopía y ptosis palpebral izquierda como primera manifestación de metástasis hipofisarias de adenocarcinoma pulmonar Diplopia and left palpebral ptosis as a first manifestation of hypophysary metastases of pulmonary adenocarcinoma

    Directory of Open Access Journals (Sweden)

    S. Junquera

    2012-04-01

    Full Text Available Paciente sin antecedentes patológicos de interés que debuta con diplopía y ptosis palpebral izquierda como primera manifestación de metástasis hipofisarias de un cáncer de origen pulmonar ampliamente diseminado y no conocido previamente. El diagnóstico se hizo con pruebas de imagen específicas del área hipofisaria en donde se apreció una neoformación en silla turca, que invadía el seno cavernoso izquierdo con erosión del dorso selar, junto con la presencia de nódulos pulmonares y múltiples adenopatías, además del estudio histológico de las lesiones. Se detectó un hipogonadismo hipogonadotropo como única alteración hormonal debido a la infiltración de la hipófisis anterior por las metástasis óseas en la base del cráneo. El paciente, a pesar de recibir varias sesiones de radioterapia, sufrió un deterioro neurológico progresivo falleciendo a las pocas semanas.A patient, without significant previous medical history, who started with diplopia and left palpebral ptosis as the first manifestation of hypophysary metastases of a widely disseminated and previously undetected cancer of pulmonary origin. Together with a histological study of the lesions, the diagnosis was made with specific image tests of the hypophysary area, which detected a neoformation in the sella turca that was invading the left cavernous sinus with erosion of the verso of the sellar, together with the presence of pulmonary nodules and numerous adenopathies. An hypogonadotropic hypogonadism was detected as the only hormonal alteration due to the infiltration of the anterior hypophysis due to the osseous metastases at the base of the cranium. The patient, in spite of receiving several weeks of radiotherapy, suffered a progressive neurological deterioration and died after a few weeks.

  5. Superior Visual Search in Adults with Autism

    Science.gov (United States)

    O'Riordan, Michelle

    2004-01-01

    Recent studies have suggested that children with autism perform better than matched controls on visual search tasks and that this stems from a superior visual discrimination ability. This study assessed whether these findings generalize from children to adults with autism. Experiments 1 and 2 showed that, like children, adults with autism were…

  6. Left paraduodenal hernias; Hernias paraduodenales izquierdas

    Energy Technology Data Exchange (ETDEWEB)

    Lopez-Negrete, L.; Garcia-Lozano, J.; Sanchez, J. L.; Tejeiro, A.; Sala, J. [Hospital Valle del Nalon. Riano-Sama. Asturias (Spain)

    2002-07-01

    We report two cases of left paraduodenal internal hernias located in the fossa of Landzert that were diagnosed by CT. Internal hernias are an infrequent cause of acute abdomen, due to the intestinal sub occlusion they produce. Left paraduodenal hernias are responsible for about 50% of internal hernias. CT makes it possible to demonstrate the group of herniated loops between the stomach, fourth segment of the duodenum, descending colon, and tail of the pancreas. The identification of the loops in an atypical position together with displaced blood vessels (mesenteric vessels) and colon gives concerns on them a typical radiological semiology that makes them easily identifiable. (Author) 9 refs.

  7. Evaluation of antioxidant properties of a new compound, pyrogallol-phloroglucinol-6,6'-bieckol isolated from brown algae, Ecklonia cava

    OpenAIRE

    Kang, Sung-Myung; Lee, Seung-Hong; Heo, Soo-Jin; Kim, Kil-Nam; Jeon, You-Jin

    2011-01-01

    In this study, antioxidant and free radical scavenging activities of the natural antioxidative compound, pyrogallol-phloroglucinol-6,6'-bieckol (PPB) isolated from brown algae, Ecklonia cava was assessed in vitro by measuring the radical scavenging activities (DPPH, alkyl, hydroxyl, and superoxide) using electron spin resonance (ESR) spectrometry, intracellular reactive oxygen species (ROS) scavenging activity, and DNA damage assay. According to the results of these experiments, the scavengin...

  8. Simultaneous removal of a tumour of the right atrium and inferior vena cava and coronary bypass-grafting in a patient with recurrent clear renal cell carcinoma

    Science.gov (United States)

    Pietrzyk, Edward; Głuszek, Stanisław; Michta, Kamil; Kot, Marta; Wożakowska-Kapłon, Beata

    2015-01-01

    Metastatic cardiac tumours are the most common malignant cardiac tumours. In the early stages they are usually asymptomatic, but their consequences can be very serious, and the prognosis is poor. We present a patient with recurrent renal cell carcinoma as a tumour of the right atrium and the vena cava inferior in whom cancerous masses were removed with simultaneously coronary artery bypass-grafting. PMID:26855653

  9. Measurement of Anterior-Posterior Diameter of Inferior Vena Cava by Ultrasonography: A Non-Invasive Method for Estimation of Central Venous Pressure

    OpenAIRE

    R Nafisi-Moghadam; Mansourian, H.R

    2007-01-01

    Background and Objective: The assessment of blood volume is now one of the most commonly needed interventions in the first line of care and severe ill patients. Measuring central venous pressure (CVP) is an invasive method, most frequently used in clinical practice for the assessment of volume status. The di-ameter of the inferior vena cava (IVC) is a parameter to estimate central venous pressure. The purpose of this study was to determine whether measurement of the anterior-posterior diamete...

  10. Treatment of pulmonary embolism and prevention of recurrence by placement of vena cava filters in prevention of deep venous thrombosis: Case report

    Directory of Open Access Journals (Sweden)

    Vučićević-Trobok Jadranka

    2002-01-01

    Full Text Available Introduction In patients with pulmonary thromboembolism it is clinical to suspect the disease, establish the diagnosis and initiate anticoagulation treatment as early as possible in order to prevent relapses, which may be fatal. Deep venous thrombosis of lower extremities is the most common site of origin, which initially may remain obscure. Case report Two weeks prior to admission the patient had right-sided chest pain accompanied with dyspnea, interpreted and treated as pleuropneumonia. Pulmonary thromboembolism was suspected due to clinical symptoms, chest X-ray, elevated enzyme levels findings, blood gas analysis with hypoxemia and ECG with right heart overload. The diagnosis of pulmonary thromboembolism confirmed by lung scintigraphy presented with perfusion defects. After twenty days of heparin therapy, the patient developed left leg edema. Ultrasound screening confirmed bilateral iliac-femoral popliteal vein thrombosis of iliacofemoropopliteal veins bilaterally. Phlebography performed via jugular vein disclosed thrombotic material in the right common iliac vein, as well as in the vena cava inferior. In the course of the procedure vena cava filter has been placed. Discussion Although the patient was receiving anticoagulation heparin therapy, he developed pulmonary thromboembolism relapse and deep venous thrombosis. In our patient, vena cava filter placement was aimed at preventing pulmonary thromboembolism relapse. Since a deficit of S protein was also established, the patient is unfortunately likely to develop thrombosis at other sites as well. Conclusion In our patient pulmonary thromboembolism was a consequence of deep venous thrombosis, and the diagnosis was established by ultrasound screening of the lower extremities and confirmed by phlebography. During phlebography vena cava filter was placed in order to prevent pulmonary thromboembolism.

  11. Absence of inferior vena cava in 14-year old boy associated with deep venous thrombosis and positive Mycoplasma pneumoniae serum antibodies- a case report

    OpenAIRE

    Kalicki, Boleslaw; Sadecka, Monika; Wawrzyniak, Agata; Kozinski, Piotr; Dziekiewicz, Miroslaw; Jung, Anna

    2015-01-01

    Background Absence of the inferior vena cava is a rare vascular anomaly, which usually remains asymptomatic in childhood. It is recognized as the risk factor for deep venous thrombosis, since the collateral circulation does not provide adequate drainage of the lower limbs. Mycoplasma pneumoniae is a common cause of community-acquired pneumonia in school-aged children and adolescents. Mycoplasma pneumoniae infection might be associated with deep venous thrombosis but its pathophysiology remain...

  12. Longevity of Lake Superior lake trout

    Science.gov (United States)

    Schram, Stephen T.; Fabrizio, Mary C.

    1998-01-01

    The age structure of mature lake trout Salvelinus namaycush from the Wisconsin waters of Lake Superior increased following a population recovery that has taken place since the 1960s. As the population aged, it became apparent that scales were unreliable aging structures. Beginning in 1986, we examined both scale and sagittal otolith ages from tagged fish with a known period at liberty. We found large discrepancies in scale and sagittal otolith ages of mature fish, such that scale ages were biased low. We estimated lake trout living up to 42 years, which is greater than previously reported from Lake Superior. Investigators studying lake trout population dynamics in the Great Lakes should be aware that lake trout can live longer than previously thought.

  13. A prebiotic role of Ecklonia cava improves the mortality of Edwardsiella tarda-infected zebrafish models via regulating the growth of lactic acid bacteria and pathogen bacteria.

    Science.gov (United States)

    Lee, WonWoo; Oh, Jae Young; Kim, Eun-A; Kang, Nalae; Kim, Kil-Nam; Ahn, Ginnae; Jeon, You-Jin

    2016-07-01

    In this study, the beneficial prebiotic roles of Ecklonia cava (E. cava, EC) were evaluated on the growth of lactic acid bacteria (LAB) and pathogen bacteria and the mortality of pathogen-bacteria infected zebrafish model. The result showed that the original E. cava (EC) led to the highest growth effects on three LABs (Lactobacillus brevis, L. brevis; Lactobacillus pentosus, L. pentosus; Lactobacillus plantarum; L. plantarum) and it was dose-dependent manners. Also, EC, its Celluclast enzymatic (ECC) and 100% ethanol extracts (ECE) showed the anti-bacterial activities on the fish pathogenic bacteria such as (Edwardsiella tarda; E. tarda, Streptococcus iniae; S. iniae, and Vibrio harveyi; V. harveyi). Interestingly, EC induced the higher production of the secondary metabolites from L. plantarum in MRS medium. The secondary metabolites produced by EC significantly inhibited the growth of pathogen bacteria. In further in vivo study, the co-treatment of EC and L. plantarum improved the growth and mortality of E. tarda-infected zebrafish as regulating the expression of inflammatory molecules such as iNOS and COX2. Taken together, our present study suggests that the EC plays an important role as a potential prebiotic and has a protective effect against the infection caused by E. tarda injection in zebrafish. Also, our conclusion from this evidence is that EC can be used and applied as a useful prebiotic. PMID:27192145

  14. Superior diglycolamides for minor actinide partitioning

    International Nuclear Information System (INIS)

    Some new unsymmetrical diglycolamides (U-DGAs) containing the dodecyl group in one arm of the amidic nitrogen and different alkyl groups varied from butyl to decyl on the other amidic nitrogen were synthesized and characterized by IR, NMR, and mass spectroscopic techniques. The results on the extraction of Am(III) from nitric acid solution and third phase formation studies revealed that the synthesized U-DGAs are superior to the existing diglycolamides. (author)

  15. ECONOMICS OF PURCHASING GENETICALLY SUPERIOR BEEF BULLS

    OpenAIRE

    Clary, Gregory M.; Jordan, Johnny W.; Thompson, Carl Eugene

    1984-01-01

    Net present value analysis is used to derive the marginal bid price for a beef herd sire from after-tax net revenues and cash flow influenced by genetic improvements. Marginal bid price represents the additional amount a producer could pay, above the present value of the current beef herd sire, for a sire expected to exhibit superior performance as reflected by increased average weaning weights of offspring. An analysis of the profitability of purchasing a breeding bull for a commercial beef ...

  16. SUPERIOR MESENTERIC ARTERY SYNDROME - A REVIEW

    OpenAIRE

    Aneeta; Sanjay,; Pramod,; Vaibhav; Ankur

    2014-01-01

    Superior mesenteric artery (SMA) syndrome is a rare acquired disorder in which an acute angulation of SMA causes compression and obstruction of the third part of the duodenum between the SMA and the aorta. The diagnosis is usually made by exclusion. A large number of debilita ting conditions leading to a loss of fatty tissue such as anorexia nervosa , malabsorption , or hyper catabolic states like burns , major surgery , severe injuries , or mal...

  17. Reperfusion hemorrhage following superior mesenteric artery stenting.

    LENUS (Irish Health Repository)

    Moore, Michael

    2012-02-03

    Percutaneous transluminal angioplasty and stent placement is now an established treatment option for chronic mesenteric ischemia and is associated with low mortality and morbidity rates. We present a case of reperfusion hemorrhage complicating endovascular repair of superior mesenteric artery stenosis. Although a recognized complication following repair of carotid stenosis, hemorrhage has not previously been reported following mesenteric endovascular reperfusion. We describe both spontaneous cessation of bleeding and treatment with coil embolization.

  18. Iodine-125 Seeds Strand for Treatment of Tumor Thrombus in Inferior Vena Cava: An Experimental Study in a Rabbit Model

    International Nuclear Information System (INIS)

    Objective: The purpose of this study was to establish an animal model of implanted inferior vena cava tumor thrombus (IVCTT) and to evaluate the effect of linear iodine-125 seeds strand in treating implanted IVCTT. Methods: Tumor cell line VX2 was inoculated subcutaneously into New Zealand rabbit to develop the parent tumor. The tumor strip was inoculated into inferior vena cava (IVC) to establish the IVCTT model. The IVCTT was confirmed by multidetector computed tomography (MDCT) after 2 weeks. Twelve rabbits with IVCTT were randomly divided into two groups. Treatment group (group T; n = 6) underwent Iodine-125 seeds brachytherapy, and the control group (group C; n = 6) underwent blank seeds strand. The blood laboratory examination (including blood routine examination, hepatic and renal function), body weight, survival time, and IVCTT volume by MDCT were monitored. All rabbits were dissected postmortem, and the therapeutic effects were evaluated on the basis of histopathology. The proliferating cell nuclear antigen index (PI) and apoptosis index (AI) of IVCTT were compared between two groups. T test, Wilcoxon rank test, and Kaplan–Meier survival curve analysis were used. Results: The success rate of establishing IVCTT was 100 %. The body weight loss and cachexia of rabbits in group C appeared earlier than in group T. Body weight in the third week, the mean survival time, PI, AI in groups T and C were 2.23 ± 0.12 kg, 57.83 ± 8.68 days, (16.73 ± 5.18 %), (29.47 ± 7.18 %), and 2.03 ± 0.13 kg, 43.67 ± 5.28 days, (63.01 ± 2.01 %), (6.02 ± 2.93 %), respectively. There were statistically significant differences between group T and group C (P < 0.05). The IVCTT volume of group T was remarkably smaller than that of group C. Conclusions: Injecting and suspensory fixing VX2 tumor strip into IVC is a reliable method to establish IVCTT animal model. The linear Iodine-125 seeds strand brachytherapy was a safe and effective method for treating IVCTT in rabbit model

  19. Iodine-125 Seeds Strand for Treatment of Tumor Thrombus in Inferior Vena Cava: An Experimental Study in a Rabbit Model

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, Wen, E-mail: wenzhangxiao@126.com; Yan, Zhiping, E-mail: Yan.zhiping@zs-hospital.sh.cn; Luo, Jianjun, E-mail: luo.jianjun@zs-hospital.sh.cn; Fang, Zhuting, E-mail: 470389481@qq.com; Wu, Linlin, E-mail: linlinzhifubao@126.com; Liu, QingXin, E-mail: liu.qingxin@zs-hospital.sh.cn; Qu, Xudong, E-mail: qu.xudong@zs-hospital.sh.cn; Liu, Lingxiao, E-mail: liu.lingxiao@zs-hospital.sh.cn; Wang, Jianhua, E-mail: wang.jianhua@zs-hospital.sh.cn [Fudan University, Department of Interventional Radiology, Zhongshan Hospital (China)

    2013-10-15

    Objective: The purpose of this study was to establish an animal model of implanted inferior vena cava tumor thrombus (IVCTT) and to evaluate the effect of linear iodine-125 seeds strand in treating implanted IVCTT. Methods: Tumor cell line VX{sub 2} was inoculated subcutaneously into New Zealand rabbit to develop the parent tumor. The tumor strip was inoculated into inferior vena cava (IVC) to establish the IVCTT model. The IVCTT was confirmed by multidetector computed tomography (MDCT) after 2 weeks. Twelve rabbits with IVCTT were randomly divided into two groups. Treatment group (group T; n = 6) underwent Iodine-125 seeds brachytherapy, and the control group (group C; n = 6) underwent blank seeds strand. The blood laboratory examination (including blood routine examination, hepatic and renal function), body weight, survival time, and IVCTT volume by MDCT were monitored. All rabbits were dissected postmortem, and the therapeutic effects were evaluated on the basis of histopathology. The proliferating cell nuclear antigen index (PI) and apoptosis index (AI) of IVCTT were compared between two groups. T test, Wilcoxon rank test, and Kaplan-Meier survival curve analysis were used. Results: The success rate of establishing IVCTT was 100 %. The body weight loss and cachexia of rabbits in group C appeared earlier than in group T. Body weight in the third week, the mean survival time, PI, AI in groups T and C were 2.23 {+-} 0.12 kg, 57.83 {+-} 8.68 days, (16.73 {+-} 5.18 %), (29.47 {+-} 7.18 %), and 2.03 {+-} 0.13 kg, 43.67 {+-} 5.28 days, (63.01 {+-} 2.01 %), (6.02 {+-} 2.93 %), respectively. There were statistically significant differences between group T and group C (P < 0.05). The IVCTT volume of group T was remarkably smaller than that of group C. Conclusions: Injecting and suspensory fixing VX2 tumor strip into IVC is a reliable method to establish IVCTT animal model. The linear Iodine-125 seeds strand brachytherapy was a safe and effective method for treating IVCTT

  20. Reproduction of a new inferior vena cava thrombosis model and study of the evolutionary process of thrombolysis in rats

    Directory of Open Access Journals (Sweden)

    Jian FU

    2015-10-01

    Full Text Available Objective To investigate the reproduction of a new model of thrombosis of inferior vena cava (IVC, and explore the natural process of thrombolysis and its mechanism in rats. Methods Forty-eight SD rats were randomly classified into experimental group and control group. In the experimental group, the lumen of the vena cava was blocked by about 80%-90% with a ligature of IVC below the left renal vein, and then the animals were redivided into three subgroups (n=12, each. In group A, the IVC endothelium was damaged and its tributaries were ligated. In group B, the IVC endothelium was damaged and its tributaries were not ligated. In group C, no damage was done to the endothelium of the IVC but all its tributaries were ligated. A sham-operated group served as control. The length and weight of the vinous thrombus and the percentage of the IVC luminal area were compared after operation to determine the optimum animal model of venous thrombosis. According to the best mode to establish the model, the thrombus specimens were collected and detected by HE and Masson staining, and the ED-1 expressions were examined by immunohistochemical staining after thrombus formation in 30 rats. The natural evolution of intravenous thrombolysis was analyzed dynamically and the cell types involved in this process were observed. Results Gross observation showed that the experimental group was successfully induced thrombus formation. The thrombus length and weight in group A was significantly higher than that in group B and group C, and no difference between group B and C. The thrombus area in group A was significantly higher than that in groups B and group C, which identified the group A was the optimal model group of venous thrombosis. In the group reproduced by the best mode of the model, HE and Masson staining results showed that new capillaries and the components of collagen and extracellular matrix increased gradually with the passage of time in the process of

  1. Blood Pool Segmentation Results in Superior Virtual Cardiac Models than Myocardial Segmentation for 3D Printing.

    Science.gov (United States)

    Farooqi, Kanwal M; Lengua, Carlos Gonzalez; Weinberg, Alan D; Nielsen, James C; Sanz, Javier

    2016-08-01

    The method of cardiac magnetic resonance (CMR) three-dimensional (3D) image acquisition and post-processing which should be used to create optimal virtual models for 3D printing has not been studied systematically. Patients (n = 19) who had undergone CMR including both 3D balanced steady-state free precession (bSSFP) imaging and contrast-enhanced magnetic resonance angiography (MRA) were retrospectively identified. Post-processing for the creation of virtual 3D models involved using both myocardial (MS) and blood pool (BP) segmentation, resulting in four groups: Group 1-bSSFP/MS, Group 2-bSSFP/BP, Group 3-MRA/MS and Group 4-MRA/BP. The models created were assessed by two raters for overall quality (1-poor; 2-good; 3-excellent) and ability to identify predefined vessels (1-5: superior vena cava, inferior vena cava, main pulmonary artery, ascending aorta and at least one pulmonary vein). A total of 76 virtual models were created from 19 patient CMR datasets. The mean overall quality scores for Raters 1/2 were 1.63 ± 0.50/1.26 ± 0.45 for Group 1, 2.12 ± 0.50/2.26 ± 0.73 for Group 2, 1.74 ± 0.56/1.53 ± 0.61 for Group 3 and 2.26 ± 0.65/2.68 ± 0.48 for Group 4. The numbers of identified vessels for Raters 1/2 were 4.11 ± 1.32/4.05 ± 1.31 for Group 1, 4.90 ± 0.46/4.95 ± 0.23 for Group 2, 4.32 ± 1.00/4.47 ± 0.84 for Group 3 and 4.74 ± 0.56/4.63 ± 0.49 for Group 4. Models created using BP segmentation (Groups 2 and 4) received significantly higher ratings than those created using MS for both overall quality and number of vessels visualized (p < 0.05), regardless of the acquisition technique. There were no significant differences between Groups 1 and 3. The ratings for Raters 1 and 2 had good correlation for overall quality (ICC = 0.63) and excellent correlation for the total number of vessels visualized (ICC = 0.77). The intra-rater reliability was good for Rater A (ICC = 0.65). Three models were successfully printed

  2. Radiographic evaluation of caudal vena cava size as a useful parameter for the diagnosis of heart disease in dairy cattle

    International Nuclear Information System (INIS)

    To quantify the radiographic parameters of the caudal vena cava (CVC) in healthy cattle and demonstrate their clinical usefulness, the present study compared the ratios of the diameter of the thoracic CVC to the diameter of the aorta (Ao) and length of the thoracic vertebrae (VL), which are all positioned in the same intercostal space, in 81 healthy control cattle (43 growing, 38 adult) and 10 cattle with heart disease. The average diameter of the CVC (CVCave) was correlated with the size of the Ao and VL in the control cows. Although the diameter and pulsation index of the CVC differed significantly between the growing and adult cows, the ratios of CVC/Ao and CVC/VL were fixed values for both the growing and mature cattle. However, in the cattle with heart disease, the pulsation index of the CVC was significantly lower or there was absence of pulsation due to a dilated CVC, and the ratio of CVCave/Ao and CVCave/VL were significantly higher than those in the healthy cattle

  3. Are inferior vena cava filters effective for prophylaxis of critical pulmonary embolism in patients with cancer and coexisting venous thromboembolism?

    International Nuclear Information System (INIS)

    Cancer sometimes causes venous thromboembolisms (VTE) including pulmonary embolisms (PE), which impedes aggressive treatment such as chemotherapy. From January 2003 to March 2007, there were 120 hospitalized patients with existing VTE in The University of Tokyo Hospital. Among them we reviewed 39 patients with cancer who required aggressive chemoradiotherapy and examined whether inferior vena cava (IVC) filtration was necessary in addition to ordinary anticoagulant therapy. The clinical stage of cancer was stage I in 7, stage II in 4, stage III in 11, and stage IV in 17. Most were advanced cancer. Of the 39, 9 underwent an IVC filter placement (filter group) and 30 did not (no-filter group). All of them received regular anticoagulant therapy. In the long-term follow up averaging 16.9 months, one patient of the filter group required discontinuation of chemotherapy due to symptomatic PE, but there was no such a case in the no-filter group. Filter-related complications such as IVC occlusion or migration did not occur. Computed tomography showed VTE in the long-term course in 27 out of 39 patients, and suggested increased thrombi in cases of recurrent cancer and those with poor outcome. Seventeen died of cancer but no one died of PE during the study. This study showed that IVC filters offered no beneficial effect for the patients with existing VTE who receive aggressive chemotherapy. (author)

  4. In Vivo Evaluation of a Retrievable Vena Cava Filter-The Dibie-Musset Filter: Experimental Results

    International Nuclear Information System (INIS)

    Purpose: To evaluate, in an animal model, the efficacy and safety of a 7 Fr percutaneous vena cava filter for temporary or permanent use. Methods: The Dibie-Musset (DM) filter is a wire preformed into a double-spiral shape with a spring effect. The experiment was performed in 15 adult sheep and consisted of the insertion of 45 filters, clot trapping tests, and filter retrieval. Follow-up in all sheep consisted of radiologic (abdominal radiograph, inferior vena cavogram, abdominal computed tomography), macroscopic, and microscopic examinations between days 8 and 386 after filter placement. Results: Of the 45 filters implanted in 15 sheep, 29 were retrieved between day 0 and day 15. Filtration efficiency was 100% for clots 4 x 4 x 20 mm. No long-term (1 year) side-effects were detectable. Microscopic examination of the vein wall showed only a dense intimal fibrosis without signs of acute inflammation at 1 year. Conclusion: These results support the efficiency and safety of the DM filter in an animal model

  5. Failed Retrieval of an Inferior Vena Cava Filter During Pregnancy Because of Filter Tilt: Report of Two Cases

    International Nuclear Information System (INIS)

    Thromboembolic disease during pregnancy is an important cause of obstetric morbidity and mortality. Pregnant patients with venous thromboembolism are usually managed by conventional anticoagulation. However, this must be discontinued during vaginal or caesarian delivery to avoid haemorrhage and to reduce the risk of possible epidural haematoma. Retrievable inferior vena cava filters (IVCFs) offer protection against pulmonary embolism during this high-risk period, when anticoagulation is discontinued, while avoiding potential long-term sequelae of a permanent IVCF. Here we report two patients who presented in the third trimester of pregnancy with floating ileofemoral deep vein thrombosis. Both patients were initially treated with standard anticoagulation; however, shortly before delivery both patients had a retrievable IVCF placed in a suprarenal position. In both patients, retrieval failed at 28 days after insertion because of filter tilt. The timing and mechanism of filter tilt remains uncertain. We believe that a number of factors could have been involved, including change in the anatomic configuration with lateral displacement of the IVCF as a result of the gravid uterus as well as forceful uterine contractions during labour, which modified the shape and diameter of the IVC. We showed that failure to retrieve the IVCF has had considerable implications for the two young patients regarding long-term anticoagulation and have highlighted the need for further clinical trials regarding the safe use of retrievable IVCFs during pregnancy.

  6. Percutaneous embolization of a giant collateral vessel originating from the azygos vein via the inferior vena cava.

    Science.gov (United States)

    Witzke, Christian; Bhatt, Ami; Inglessis, Ignacio

    2013-11-15

    We present the case of a 45-year-old man with univentricular heart, small outlet chamber, and L-transposition of the great vessels. As an infant, the patient underwent multiple palliative surgical interventions. He presented with worsening dyspnea and fatigue and was found to have systemic oxygen saturation of 85% on 2 L of oxygen by nasal cannula, whereas he had chronically remained between 90 and 95% throughout most of adulthood. There was no evidence of significant valvular regurgitation or stenosis, nor was there an overt intracardiac shunt by echocardiography. Cardiac CT and cardiac MRI revealed a large serpiginous systemic to pulmonary venovenous collateral located behind the left atrium. The collateral drained into the lower right pulmonary vein as it entered the left atrium. The tributary veins to the "giant" collateral were determined by these images modalities. The patient underwent a percutaneous embolization of this giant venovenous collateral via a remnant supracardinal vein originating from the infrarenal inferior vena cava using two Amplatzer Vascular Plug II. Immediately after the procedure the patient's oxygen saturation increased to 90% on room air at rest. At 2 months follow-up the patient had a marked clinical improvement with oxygen saturation as high as 95% on room air while walking. Our case illustrates a successful embolization of a giant collateral via an embryological venous remnant connecting the IVC to the azygos system. PMID:22936600

  7. de educación media superior

    Directory of Open Access Journals (Sweden)

    Enrique Cerón Ferrer

    2007-01-01

    Full Text Available El trabajo presenta los resultados obtenidos en relación al conocimiento y manejo que sobre matemáticas tienen los estudiantes de educación media superior, de los Centros de Estudios Tecnológicos y de Servicios del Distrito Federal, de diferentes carreras que se imparten en estos centros escolares, durante el año 2005. El instrumento de análisis es un cuestionario que contestaron los alumnos, la metodología utilizada es de tipo longitudinal y comparativa.

  8. Influência das cavas de extração de areia no balanço hídrico do vale do Paraíba do Sul

    Directory of Open Access Journals (Sweden)

    Benedito Jorge dos Reis

    2006-12-01

    Full Text Available A crescente formação de lagos artificiais oriundos da atividade de extração de areia no Vale do Rio Paraíba do Sul é responsável por alterações ambientais significativas. Nesse trabalho, é investigada a evolução das áreas de cavas de extração de areia e sua influência no balanço hídrico regional. Para isso, foi desenvolvido um banco de dados georreferenciado, na plataforma SPRING, no qual foram inseridas imagens dos satélites Landsat 5 e 7, cenas 218/76 e 219/76, que foram analisadas para fornecer estimativas das áreas das cavas de areia em um período de 11 anos. Com dados da estação climatológica 83784 - UNITAU/INMET e a área total de lagos artificiais, foi possível estimar o volume de água evaporada para atmosfera a partir dos lagos resultantes dessa atividade. Observou-se um crescimento na área de lagos formados pela extração de areia de 591 ha, em 1993 para 1.726 ha, em 2003. A evaporação resultante aumentou em 203% e resultou na evaporação de 19.157.022 m³, no ano de 2003, equivalentes ao abastecimento de uma cidade com mais de 326.000 habitantes, considerando a média de consumo do Estado de São Paulo, que é superior à média Brasileira.The extraction of sand in the valley of the Paraíba do Sul River, carried out in a vulnerable environment, is responsible for significant environmental impacts. This work had the objective of investigating the increase of the total area of lakes created in the mining process for a period of 11 years and of verifying the influence of the evaporation from these lakes on the regional water balance. Thus, a Geographic Information System data basis was implemented using the GIS software package, SPRING, and Landsat imagery. Scenes 218/76 and 219/76 were used for the quantification of the mining areas and for the assessment of the evolution of the activity in the area for a period of 11 years. With data from a local climatological station (UNITAU/INMET-83784 integrated into

  9. Management of superior subperiosteal orbital abscess.

    Science.gov (United States)

    Gavriel, Haim; Jabrin, Basel; Eviatar, Ephraim

    2016-01-01

    A superior subperiosteal orbital abscess (SSPOA) is a collection of purulent material between the periorbit and the superior bony orbital wall, and is typically a complication of frontal sinusitis. SSPOA is characteristically managed by classic external surgical drainage. The aim of our study was to assess the role of surgical intervention in SSPOA. A retrospective medical chart review of patients diagnosed with SSPOA secondary to rhinosinusitis between the year 2005 and 2013 was conducted. Collected data included age, gender, co-morbidity, clinical presentation, prior antibiotic management, CT scans, surgical approach, outcome and complications. Six patients were included in our study, three males and three females with a mean age of 22.8 (range 9-58). Two patients were treated with amoxicillin clavulanic acid for 3 days prior to admission. Only the youngest patient with the smallest abscess responded successfully to conservative treatment, while the rest were managed surgically: three patients were treated successfully by the endonasal endoscopic approach and two patients were treated by utilizing the combined endonasal endoscopic and external approach. In patients who underwent the combined approach, the abscess was located in a more antero-lateral position than those treated endonasal endoscopically only. The location of a SSPOA dictates the surgical approach. The most antero-lateral SSPOAs should be drained by the combined approach, while more posterior abscesses should be approached endoscopically. Furthermore, a small SSPOA is first to be reported to resolve with conservative treatment. Level 4 (case series). PMID:25700832

  10. A esquerda na América latina durante os século XX e XXI: periodização e debates - 10.4025/dialogos.v14i1.449 The left in Latin America during the 20th and 21st centuries: periodization and debates - 10.4025/dialogos.v14i1.449 La izquierda en América Latina durante los siglos XX y XXI: periodización y debates

    Directory of Open Access Journals (Sweden)

    Claudia Wasserman

    2011-02-01

    Full Text Available O artigo visa debater a identidade construída pela historiografia para a esquerda latino-americana nos séculos XX e XXI. Apresenta algumas teses sobre os movimentos de esquerda resultantes de uma análise crítica do processo de generalização presente em alguns estudos sociais acerca dos grupos, organizações e movimentos. Em seguida, propõe uma periodização para a trajetória da esquerda latino-americana e vai debatendo algumas daquelas premissas a partir da historicidade de cada grupo, movimento ou organização.The article aims to debate the identity constructed by historiography for the Latin American Left in the 20th and 21st centuries. It presents theses on leftist movements from a critical analysis of the generalization process present in certain social studies on these groups, organizations and movements. It then proposes a periodization for the trajectory of the Latin American Left and debates some of those premises, starting from the historicity of each group, movement or organization.El artículo debate la identidad construida por la historiografía sobre la izquierda latinoamericana durante los siglos XX y XXI. Presenta algunas tesis sobre los movimientos de izquierda, resultado de un análisis crítico del proceso de generalización presente en algunos estudios sociales de grupos, organizaciones y movimientos. En seguida, propone una periodización de la trayectoria de la izquierda latinoamericana y debate algunas de aquellas premisas a partir de la historicidad de cada grupo, movimiento u organización.

  11. Feeling superior is a bipartisan issue: extremity (not direction) of political views predicts perceived belief superiority.

    Science.gov (United States)

    Toner, Kaitlin; Leary, Mark R; Asher, Michael W; Jongman-Sereno, Katrina P

    2013-12-01

    Accusations of entrenched political partisanship have been launched against both conservatives and liberals. But is feeling superior about one's beliefs a partisan issue? Two competing hypotheses exist: the rigidity-of-the-right hypothesis (i.e., conservatives are dogmatic) and the ideological-extremism hypothesis (i.e., extreme views on both sides predict dogmatism). We measured 527 Americans' attitudes about nine contentious political issues, the degree to which they thought their beliefs were superior to other people's, and their level of dogmatism. Dogmatism was higher for people endorsing conservative views than for people endorsing liberal views, which replicates the rigidity-of-the-right hypothesis. However, curvilinear effects of ideological attitude on belief superiority (i.e., belief that one's position is more correct than another's) supported the ideological-extremism hypothesis. Furthermore, responses reflecting the greatest belief superiority were obtained on conservative attitudes for three issues and liberal attitudes for another three issues. These findings capture nuances in the relationship between political beliefs and attitude entrenchment that have not been revealed previously. PMID:24096379

  12. ANATOMIC RESEARCH OF SUPERIOR CLUNIAL NERVE TRAUMA

    Institute of Scientific and Technical Information of China (English)

    1999-01-01

    In order to find the mechanism of superior clunial nerve (SCN) trauma, we dissected and revealed SCN from 12 corpses (24 sides). Combining 100 sides of SCN trauma, we inspected the course of SCN, the relation between SCN and it's neighbour tissues with the situation of SCN when being subjected to force. We found that the following special anatomic characteristics and mechanical elements such as the course of SCN, it's turning angles, the bony fibrous tube at the iliac crest, the posterior layer of the lumbodorsal fascia and SCN neighbour adipose tissue, are the causes of external force inducing SCN trauma. The anatomic revealment is the guidance of SCN trauma treatment with edged needle.

  13. Lightning activity during the 1999 Superior derecho

    Science.gov (United States)

    Price, Colin G.; Murphy, Brian P.

    2002-12-01

    On 4 July 1999, a severe convective windstorm, known as a derecho, caused extensive damage to forested regions along the United States/Canada border, west of Lake Superior. There were 665,000 acres of forest destroyed in the Boundary Waters Canoe Area Wilderness (BWCAW) in Minnesota and Quetico Provincial Park in Canada, with approximately 12.5 million trees blown down. This storm resulted in additional severe weather before and after the occurrence of the derecho, with continuous cloud-to-ground (CG) lightning occurring for more than 34 hours during its path across North America. At the time of the derecho the percentage of positive cloud-to-ground (+CG) lightning measured by the Canadian Lightning Detection Network (CLDN) was greater than 70% for more than three hours, with peak values reaching 97% positive CG lightning. Such high ratios of +CG are rare, and may be useful indicators of severe weather.

  14. SUPERIOR MESENTERIC ARTERY SYNDROME - A REVIEW

    Directory of Open Access Journals (Sweden)

    Aneeta

    2014-02-01

    Full Text Available Superior mesenteric artery (SMA syndrome is a rare acquired disorder in which an acute angulation of SMA causes compression and obstruction of the third part of the duodenum between the SMA and the aorta. The diagnosis is usually made by exclusion. A large number of debilita ting conditions leading to a loss of fatty tissue such as anorexia nervosa , malabsorption , or hyper catabolic states like burns , major surgery , severe injuries , or malignancies can cause this syndrome. To our knowledge there are no cases reported in the In dian literature , though many such cases are being diagnosed and successfully treated the world over. We recently diagnosed and successfully treated a patient of S.M.A. syndrome in Shri Aurobindo Institute of Medical S ciences , Medical College and Post - G radu at e I nstitute. We take the opportunity to review the literature on S.M.A. syndrome

  15. Superiority: China Mobile in the competition

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    The market share between China Mobile and China Unicom has stabilized since 2002.It is found that China Mobile has the superiority in the competition, for example, the scissors movement between its revenue and cost indicates that it has a strong profit generating ability and there is enough room for it to reduce the price.The ratio between its price (marginal income) and marginal cost indicates that there is a very distant limit for it to reduce the price.Its demand is obviously flexible with the price, but it does not use the price weapon abundantly.The reason for the stabilization of the market is that China Mobile withdrew from the competition.

  16. Superior Mesenteric Artery Syndrome or Wilkie Syndrome

    International Nuclear Information System (INIS)

    We described three cases of superior mesenteric artery (SMA) syndrome, also known as Wilkie's syndrome, chronic duodenal ileus, or cast syndrome. This syndrome occurs when the third portion of the duodenum is compressed between the SMA and the aorta. The major risk factors for development of SMA syndrome are rapid weight loss and surgical correction of spinal deformities. The clinical presentation of SMA syndrome is variable and nonspecific, including nausea, vomiting, abdominal pain, and weight loss. The diagnosis is based on endoscopic, radiographic and tomographic findings of duodenal compression by the SMA. The treatment of SMA syndrome is aimed at the precipitating factor, which usually is related to weight loss. Therefore, conservative therapy with nutritional supplementation is the initial approach, and surgery is reserved for those who do not respond to nutritional therapy.

  17. The left and the democratic stability in Latin America: the ideology of the Bolivarian Revolution and its impact on the political processes in Venezuela and Latin America Izquierda y estabilidad de la democracia en América latina: la ideología de la revolución bolivariana y su repercusión sobre el proceso político en Venezuela y América latina

    Directory of Open Access Journals (Sweden)

    José Enrique MOLINA V.

    2010-10-01

    Full Text Available One of the main areas of work in Comparative Politics and Political Theory has been the determination of the variables associated with the stability/instability of political systems in general, and democracy in particular. This paper focuses on one of these variables. One with newly acquired importance after the recent electoral successes by the left, but that nevertheless has not been in the spotlight of scholarly analysis: ideological polarization. Particularly, ideological polarization brought about by the attempt to pursue by the government a leftist political project. The main focus is on the ideological project pursued by the Venezuelan Bolivarian Government and its association with the political instability of 2002 and 2003. The paper considers this topic taken into account mainstream theoretical approaches on political stability, and the experience of previous Latin American leftist governments. The paper reaches the conclusion that in Latin America the attempt to implement a socialist program by a democratically elected government, if it is done without meaningful social and political negotiation, and with authoritarian overtones, is likely to lead to intense political instability and to the ultimate failure of the proposed social change. Los factores vinculados a la estabilidad o inestabilidad de los sistemas políticos y la democracia han sido una preocupación central de la política comparada y la teoría política. Este trabajo se centra en analizar un factor que adquiere nueva importancia dado el resurgimiento de la izquierda en América Latina, pero que no ha estado en el centro del debate académico sobre la estabilidad democrática: la polarización ideológica producida por el adelanto de un proyecto político de izquierda desde el gobierno. Su análisis se enmarca en los enfoques teóricos sobre la estabilidad de la democracia y los sistemas políticos. Dentro del contexto de los gobiernos de izquierda en América Latina, se

  18. RIGHT SUPERIOR POLAR ARTERY ARISING FROM AORTA

    Directory of Open Access Journals (Sweden)

    Sreekanth

    2013-05-01

    Full Text Available ABSTRACT: The renal vasculature was always a subject of varia tions both in the number and pattern of portal of entry into kidney and Perihilar placement of the artery, vein and pelvis. Good anatomical insight is an essential prerequisite besides the surgical expertise. The cadaveric dissection at Shadan Institute of Medical Sciences, Teaching Hospital and Research Centre, revealed superior / upper polar artery arising from the lateral aspect of the aorta just proximal to the origin of Main Renal Artery (MRA. T he main renal artery and the accessory renal artery had almost a common point of origin. Th e peri-hilar segmentation of the main renal artery was a fork like pattern. One of the segmental arteries was long and had its portal of entry into the kidney by perforating the capsule of the ant erior substance of the kidney. The remaining segmental branches had their portal of ent ry through the hilum. The lower two segmental branches were placed anterior to the main renal vein causing altered hilar anatomy. A thorough knowledge of the frequently to the rarel y occurring wide range of variations of renal vasculature has significance in exploration and trea tment of renal trauma, renal transplantation, renal artery embolization, surgery for abdominal ao rtic aneurysm and conservative or radical renal surgery. Such a rare variation including the combination of extra renal peri-hilar segmentation of MRA with superior polar artery is wor thy of concern to the urologists harvesting kidneys from the live donors for performi ng transplantation procedures, partial nephrectomies for the hilar tumors and for Radiologi sts during interpretation of the angiograms

  19. The management of superior sulcus tumors

    Energy Technology Data Exchange (ETDEWEB)

    Komaki, Ritsuko; Cox, J.D.; Putnam, J.B. Jr [Texas Univ., Houston, TX (United States). Anderson Cancer Center] (and others)

    2001-09-01

    Superior sulcus tumors are a rare type of lung cancer arising in the apex of the lung above the sulcus and cause specific symptoms and signs depending on the location and whether the tumor extends into the surrounding structures. Because of the closeness of critical structures to the tumor (e.g., the subclavian artery for anterior lesions, the brachial plexus for lesions in the middle location, and the sympathetic stellate ganglion causing Horner's syndrome [Pancoast's tumor], the vertebral bodies, nerve foramen, and spinal cord for posterior lesions), superior sulcus tumors were often considered marginally respectable or unresectable. Therefore, for many years, preoperative radiation therapy was considered routine treatment for those tumors. However, with the evolution in our understanding of these tumors and modern imaging techniques such as computerized tomography (CT) and magnetic resonant imaging (MRI) and surgical techniques, there is now considerable debate about the roles and timing of surgical resection, radiation therapy, and chemotherapy in the treatment of patients with these tumors. If mediastinoscopy reveals microscopic mediastinal lymph node involvement, the patient can be treated with preoperative concurrent chemoradiotherapy followed by surgery. If there was a gross mediastinal lymph node involvement (N2) on CT, N3 or T4 lesions, the patient can be treated with concurrent chemoradiotherapy with a curative intent; the outcome of such treatment appears to be better than that of sequential chemotherapy followed by radiation therapy. Whenever possible, without compromising the patient's quality of life, surgery should be considered to improve outcome. (author)

  20. Efficacy of Lower-Extremity Venous Thrombolysis in the Setting of Congenital Absence or Atresia of the Inferior Vena Cava

    Energy Technology Data Exchange (ETDEWEB)

    Ganguli, Suvranu, E-mail: sganguli@partners.org; Kalva, Sanjeeva; Oklu, Rahmi; Walker, T. Gregory; Datta, Neil [Massachusetts General Hospital and Harvard Medical School, Division of Vascular Imaging and Intervention, Department of Imaging (United States); Grabowski, Eric F. [Massachusetts General Hospital and Harvard Medical School, Division of Hematology and Oncology, Department of Pediatrics (United States); Wicky, Stephan [Massachusetts General Hospital and Harvard Medical School, Division of Vascular Imaging and Intervention, Department of Imaging (United States)

    2012-10-15

    Purpose: A rare but described risk factor for deep venous thrombosis (DVT), predominately in the young, is congenital agenesis or atresia of the inferior vena cava (IVC). The optimal management for DVT in this subset of patients is unknown. We evaluated the efficacy of pharmacomechanical catheter-directed thrombolysis (PCDT) followed by systemic anticoagulation in the treatment of acute lower-extremity DVT in the setting of congenital IVC agenesis or atresia. Materials and Methods: Between November of 2005 and May of 2010, six patients (three women [average age 21 years]) were referred to our department with acute lower-extremity DVT and subsequently found to have IVC agenesis or atresia on magnetic resonance imaging. A standardized technique for PCDT (the Angiojet Rheolytic Thrombectomy System followed by the EKOS Microsonic Accelerated Thrombolysis System) was used for all subjects. Successful thrombolysis was followed by systemic heparinization with transition to Coumadin or low molecular-weight heparin and compression stockings. Subjects were followed-up at 1, 3, and then every 6 months after the procedure with clinical assessment and bilateral lower-extremity venous ultrasound. Results: All PCDT procedures were technically successful. No venous stenting or angioplasty was performed. The average thrombolysis time was 28.6 h (range 12-72). Two patients experienced heparin-induced thrombocytopenia, and one patient developed a self-limited knee hemarthrosis, No patients were lost to follow-up. The average length of follow-up was 25.8 {+-} 20.2 months (range 3.8-54.8). No incidence of recurrent DVT was identified. There were no manifestations of postthrombotic syndrome. Conclusions: PCDT followed by systemic anticoagulation and the use of compression stockings appears to be safe and effective in relatively long-term follow-up treatment of patients who present with acute DVT and IVC agenesis or atresia.

  1. Efficacy and Safety of Endovascular Intervention for the Management of Primary Entire-Inferior Vena Cava Occlusion

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, Qingqiao, E-mail: 1427286069@qq.com; Huang, Qianxin, E-mail: 18705206105@163.com; Shen, Bin, E-mail: 753021357@qq.com; Sun, Jingmin, E-mail: 383937658@qq.com; Wang, Xiaolong, E-mail: 781198238@qq.com; Liu, Hongtao, E-mail: hongtao6@vip.sina.com [The Affiliated Hospital of Xuzhou Medical College, Department of Interventional Radiology and Vascular Surgery (China)

    2015-06-15

    PurposeThis study was designed to investigate the safety and efficacy of endovascular intervention for the treatment of primary entire-inferior vena cava (IVC) occlusion.MethodsEndovascular interventions were performed in six patients for the treatment of primary entire-IVC occlusion. IVC and hepatic venography were performed via the jugular and femoral veins. Balloon angioplasty was used to revascularize the hepatic vein and IVC and a stent was placed in the IVC to maintain patency. Postoperative color Doppler ultrasonography was performed at 1, 3, 6, and 12 months, and then annually, to monitor the patency of the hepatic vein and IVC.ResultsThe IVC and one or two hepatic veins were successfully revascularized in five patients. Revascularization was successful in the right and left hepatic veins in one patient; however, IVC patency could not be established in this patient. Eleven Z-type, self-expanding stents were placed into the IVCs of five patients (three stents in two patients, two stents in two patients, and one stent in one patient). There were no instances of postoperative bleeding or mortality. Follow-up was conducted for 18–90 months (42.8 ± 26.5 months). None of the five patients suffered restenosis of the IVC or hepatic veins. However, there was one of the six cases of right hepatic vein restenosis at 18 months postprocedure that was revascularized after a second balloon dilatation.ConclusionsEndovascular intervention is safe and efficacious for the treatment of primary entire-IVC occlusion.

  2. Efficacy of Lower-Extremity Venous Thrombolysis in the Setting of Congenital Absence or Atresia of the Inferior Vena Cava

    International Nuclear Information System (INIS)

    Purpose: A rare but described risk factor for deep venous thrombosis (DVT), predominately in the young, is congenital agenesis or atresia of the inferior vena cava (IVC). The optimal management for DVT in this subset of patients is unknown. We evaluated the efficacy of pharmacomechanical catheter-directed thrombolysis (PCDT) followed by systemic anticoagulation in the treatment of acute lower-extremity DVT in the setting of congenital IVC agenesis or atresia. Materials and Methods: Between November of 2005 and May of 2010, six patients (three women [average age 21 years]) were referred to our department with acute lower-extremity DVT and subsequently found to have IVC agenesis or atresia on magnetic resonance imaging. A standardized technique for PCDT (the Angiojet Rheolytic Thrombectomy System followed by the EKOS Microsonic Accelerated Thrombolysis System) was used for all subjects. Successful thrombolysis was followed by systemic heparinization with transition to Coumadin or low molecular-weight heparin and compression stockings. Subjects were followed-up at 1, 3, and then every 6 months after the procedure with clinical assessment and bilateral lower-extremity venous ultrasound. Results: All PCDT procedures were technically successful. No venous stenting or angioplasty was performed. The average thrombolysis time was 28.6 h (range 12–72). Two patients experienced heparin-induced thrombocytopenia, and one patient developed a self-limited knee hemarthrosis, No patients were lost to follow-up. The average length of follow-up was 25.8 ± 20.2 months (range 3.8–54.8). No incidence of recurrent DVT was identified. There were no manifestations of postthrombotic syndrome. Conclusions: PCDT followed by systemic anticoagulation and the use of compression stockings appears to be safe and effective in relatively long-term follow-up treatment of patients who present with acute DVT and IVC agenesis or atresia.

  3. Mechanism for the tilting of Geunther Tulip inferior vena cava filter inserted via femoral vein: an experimental study in vitro

    International Nuclear Information System (INIS)

    Objective: To clarify the mechanism causing the tilting of Geunther Tulip inferior Vena Cava filter (GTF) which is inserted via femoral vein access by means of the experiment in vitro. Methods: The caval model was established by placing one 25 mm × 10 cm Dacron graft and two 10 mm × 20 cm Dacron grafts into a transparent bifurcate glass tube. The study consisted of two groups: right straight group (GRS) (n=100) and left straight group (GLS) (n=100). The distance (DCH) between the caval right wall and the hook was measured. The degree of tilting (DT) was classified into 5 grades and the data were recorded. Before and after the GTF was released, the angle (ACM1,2) between the axis of IVC and the metal mount, the distance (DCM1,2) between the caval right wall and the metal mount, the angle (ACF) between the axis of IVC and the axis of the filter and the diameter of IVC (DIVC) were measured separately. Results: The degree of GTF tilting in each group revealed a divergent tendency. In Group RS, the apex of the filter tended to be grade Ⅲ compared that in Group LS (59% vs 36%, P=0.003). The differences in most variables between GRS and GLS were considered as statistical significance. Significant positive correlation existed between ACM1 and ACF, ACM1-ACM2 and DCH1-DCH2 in each group, respectively, while significant negative association was also existed between DCH1 and ACF in each group. Conclusion: The tilting angle of GTF filter axis before it is released is a major cause of the occurrence of femoral GTF filter tilting. (authors)

  4. Correlation of the ratio of caudal vena cava diameter and aorta diameter with systolic pressure variation in anesthetized dogs.

    Science.gov (United States)

    Meneghini, Caterina; Rabozzi, Roberto; Franci, Paolo

    2016-02-01

    OBJECTIVE To evaluate the correlation coefficient of the ratio between diameter of the caudal vena cava (CVC) and diameter of the aorta (Ao) in dogs as determined ultrasonographically with systolic pressure variation (SPV). ANIMALS 14 client-owned dogs (9 females and 5 males; mean ± SD age, 73 ± 40 months; mean body weight, 22 ± 7 kg) that underwent anesthesia for repair of skin wounds. PROCEDURES Anesthesia was induced. Controlled mechanical ventilation with a peak inspiratory pressure of 8 cm H2O was immediately started, and SPV was measured. During a brief period of suspension of ventilation, CVC-to-Ao ratio was measured on a transverse right-lateral intercostal ultrasonographic image obtained at the level of the porta hepatis. When the SPV was ≥ 4 mm Hg, at least 1 bolus (3 to 4 mL/kg) of Hartmann solution was administered IV during a 1-minute period. Bolus administration was stopped and the CVC-to-Ao ratio measured when SPV was SPV and CVC-to-Ao ratio before bolus administration were 7 ± 2 mm Hg and 0.52 ± 0.16, respectively. Mean ± SD SPV and CVC-to-Ao ratio after bolus administration were 2 ± 0.6 mm Hg and 0.91 ± 0.13, respectively. CONCLUSIONS AND CLINICAL RELEVANCE In this study, the CVC-to-Ao ratio was a feasible, noninvasive ultrasonographically determined value that correlated well with SPV. (Am J Vet Res 2016;77:137-143). PMID:27027706

  5. Social and Demographic Factors Influencing Inferior Vena Cava Filter Retrieval at a Single Institution in the United States

    Energy Technology Data Exchange (ETDEWEB)

    Smith, S. Christian, E-mail: csmith@aemrc.arizona.edu; Shanks, Candace, E-mail: Candace.Shanks@osumc.edu; Guy, Gregory, E-mail: Gregory.Guy@osumc.edu; Yang, Xiangyu, E-mail: Xiangyu.Yang@osumc.edu; Dowell, Joshua D., E-mail: Joshua.Dowell@osumc.edu [The Ohio State University Wexner Medical Center, Division of Interventional Radiology, Department of Radiology (United States)

    2015-10-15

    PurposeRetrievable inferior vena cava filters (IVCFs) are associated with long-term adverse events that have increased interest in improving filter retrieval rates. Determining the influential patient social and demographic factors affecting IVCF retrieval is important to personalize patient management strategies and attain optimal patient care.Materials and MethodsSeven-hundred and sixty-two patients were retrospectively studied who had a filter placed at our institution between January 2011 and November 2013. Age, gender, race, cancer history, distance to residence from retrieval institution, and insurance status were identified for each patient, and those receiving retrievable IVCFs were further evaluated for retrieval rate and time to retrieval.ResultsOf the 762 filters placed, 133 were permanent filters. Of the 629 retrievable filters placed, 406 met the inclusion criteria and were eligible for retrieval. Results revealed patients with Medicare were less likely to have their filters retrieved (p = 0.031). Older age was also associated with a lower likelihood of retrieval (p < 0.001) as was living further from the medical center (p = 0.027). Patients who were white and had Medicare were more likely than similarly insured black patients to have their filters retrieved (p = 0.024).ConclusionsThe retrieval rate of IVCFs was most influenced by insurance status, distance from the medical center, and age. Race was statistically significant only when combined with insurance status. The results of this study suggest that these patient groups may need closer follow-up in order to obtain optimal IVCF retrieval rates.

  6. Social and Demographic Factors Influencing Inferior Vena Cava Filter Retrieval at a Single Institution in the United States

    International Nuclear Information System (INIS)

    PurposeRetrievable inferior vena cava filters (IVCFs) are associated with long-term adverse events that have increased interest in improving filter retrieval rates. Determining the influential patient social and demographic factors affecting IVCF retrieval is important to personalize patient management strategies and attain optimal patient care.Materials and MethodsSeven-hundred and sixty-two patients were retrospectively studied who had a filter placed at our institution between January 2011 and November 2013. Age, gender, race, cancer history, distance to residence from retrieval institution, and insurance status were identified for each patient, and those receiving retrievable IVCFs were further evaluated for retrieval rate and time to retrieval.ResultsOf the 762 filters placed, 133 were permanent filters. Of the 629 retrievable filters placed, 406 met the inclusion criteria and were eligible for retrieval. Results revealed patients with Medicare were less likely to have their filters retrieved (p = 0.031). Older age was also associated with a lower likelihood of retrieval (p < 0.001) as was living further from the medical center (p = 0.027). Patients who were white and had Medicare were more likely than similarly insured black patients to have their filters retrieved (p = 0.024).ConclusionsThe retrieval rate of IVCFs was most influenced by insurance status, distance from the medical center, and age. Race was statistically significant only when combined with insurance status. The results of this study suggest that these patient groups may need closer follow-up in order to obtain optimal IVCF retrieval rates

  7. Xanthogranulomatous Pyelonephritis in a male child with renal vein thrombus extending into the inferior vena cava: a Case Report

    Directory of Open Access Journals (Sweden)

    Kotasthane Vaishali D

    2010-07-01

    Full Text Available Abstract Background We present a case of Xanthogranulomatous pyelonephritis (XGPN in a male child with renal vein thrombus extending into the inferior vena cava. This is a rare presentation. XGPN is a rare type of renal infection characterised by granulomatous inflammation with giant cells and foamy histiocytes. The peak incidence is in the sixth to seventh decade with a female predominance. XGPN is rare in children. Case presentation An 11 year old male child presented with a history of high grade fever and chills, right flank pain and progressive pyuria for two months. He had a history of vesical calculus for which he was operated four years back. In our case, a subcapsular right nephrectomy was performed. The surgical specimens were formalin fixed and paraffin embedded. The sections were stained with routine Hematoxylin & Eosin stain. Grossly; the kidney was enlarged with adherent capsule and thickening of the perinephric tissue. The pelvicalyceal system was dilated and was filled with a cast of pus. Histological evaluation revealed diffuse necrosis of the renal parenchyma and perinephric fat. Neutrophils, plasma cells, sheets of foamy macrophages and occasional multinucleate giant cells were seen. The renal vein was partially occluded by an inflammatory thrombus with fibrin, platelets and mixed inflammatory cells. The thrombus was focally adherent to the vein wall with organization. Conclusions The clinical presentation and the macroscopic aspect, together with the histological pattern, the cytological characteristics addressed the diagnosis towards XGPN with a vena caval thrombus. Our case illustrates that the diagnosis of XGPN should be considered even in paediatric age group when renal vein and vena caval thrombi are present.

  8. Impact of intra-abdominal pressure on retrohepatic vena cava shape and flow in mechanically ventilated pigs

    International Nuclear Information System (INIS)

    Conflicting results have been found regarding correlations between right atrial pressure (RAP) and inferior vena cava (IVC) diameter in mechanically ventilated patients. This finding could be related to an increase in intra-abdominal pressure (IAP). This study was designed to clarify whether variations in IVC flow rate caused by positive pressure ventilation are associated with changes in the retrohepatic IVC cross-section (ΔIVC) during major changes in volume status and IAP. Nine pigs were anesthetized, mechanically ventilated and equipped. IAP was set at 0, 15 and 30 mmHg during two conditions, i.e. normovolemia and hypovolemia, generated by blood removal to obtain a mean arterial pressure value lower than 60 mmHg. At each IAP increment, cardiac output, IVC flow and surface area were respectively assessed by flowmeters and transesophageal echocardiography. At normal IAP, even in presence of respiratory changes in IVC flows, no ΔIVC were observed during the two conditions. At high IAP, neither ΔIVC nor modulations of IVC flow were observed whatever the volemic status. The majority of animals with an IVC area of less than 0.65 cm2 showed evidence of IAP greater than RAP values. Negative RAP–IAP pressure gradients were found to occur with an IVC area of less than 0.65 cm2, suggesting that IVC dimensions determined using standard ultrasound techniques may indicate the direction of the RAP–IAP gradient. The clinical relevance of the present findings is that volume status should not be estimated from retrohepatic IVC dimensions in cases of high IAP. (paper)

  9. Follow-Up of 6 Patients with Permanent ; Vena Cava Filters in the Prevention of Pulmonary Embolism

    Directory of Open Access Journals (Sweden)

    M. Vahedian

    2011-10-01

    Full Text Available Introduction & Objective: Venous thromboembolic disease is a significant cause of morbidity and mortality in the United States. Deep venous thrombosis (DVT and pulmonary embolism (PE are a spectrum of a single disease entity. In most clinical situations, anticoagulation is the preferred form of therapy .IVC filter placement when using anticoagulation therapy is contraindicated or proves ineffective. The placement of an IVC filter is considered standard preventive treatment for PE. The aim of this study was follow up of patients with permanent vena cava filters in the prevention of pulmonary embolism after six months. Materials & Methods: In this cross sectional study 6 patients with IVC filter were followed up after 6 months. They were examined about having emboli, reccurent DVT, edema, varicosis, bleeding, misplacement, and fracture of filter. Data were analyzed with SPSSV17. Results: 6 patients having a mean age of 58.6 years were evaluated. There was no difference in sex . The reason of admission in all cases was DVT. Doppler sonography was done for all the patients. In 66.66% anticoagulation therapy was done before surgery. The filter was placed percutaneously in all cases. After 6 months in 5 cases there were no signs of DVT, PE, edema, and varicosis. In addition one patient died because of respiratory arrest due to encephalopathy. No complications were seen during admission period. Conclusion: Although IVC filter increases the risk of recurrent DVT in the long term ,it remarkablely decreases the risk of PE.IVC filter is a useful and effective treatment in patients with contraindication of using anticoagulation therapy especially in patients with cancer. (Sci J Hamadan Univ Med Sci 2011;18(2:29-32

  10. Effect of antithrombotic agents on the patency of PTFE-Covered stents in the inferior vena cava: An experimental study

    International Nuclear Information System (INIS)

    Purpose: To evaluate the efficacy of antithrombotic agents in the prevention of stenosis of polytetrafluororethylene (PTFE)-covered stents in the venous system.Methods: Spiral Z stents covered with PTFE (PTFE-covered stents) were placed in the inferior vena cava (IVC) of 34 dogs. Nineteen dogs, used as a control group, were sacrificed at 2, 4, and 12 weeks. Fifteen dogs, previously given antithrombotic agents [cilostazol (n=5), warfarin potassium (n=5), cilostazol plus warfarin potassium (n=5)] were sacrificed at 4 weeks, and then examined angiographically and histopathologically. The effect of the antithrombotic agents was compared between groups.Results: The patency rate of the antithrombotic agent group was 93% (14/15), which was higher than the control group rate of 63% (12/19). The mean stenosis rate of the patent stent at both ends and at the midportion was lower at 4 weeks in the antithrombotic agent group than in the control group. In particular, the mean stenosis rate in the cilostazol plus warfarin potassium group was significantly lower than the control group (Tukey's test, p < 0.05). The mean neointimal thickness of the patent stent at both ends and at the midportion was thinner at 4 weeks in the antithrombotic agent group than in the control group. In particular, the thickness of the neointima in the cilostazol plus warfarin potassium group was significantly decreased when compared with the control group (Tukey's test p < 0.05). At 4 weeks, endothelialization in the antithrombotic agent group tended to be almost identical to that in the control group.Conclusion: The present study suggests that administration of an antithrombotic agent is an effective way of preventing the stenosis induced by a neointimal thickening of PTFE-covered stents in the venous system.

  11. Effect of Antithrombotic Agents on the Patency of PTFE-Covered Stents in the Inferior Vena Cava: An Experimental Study

    International Nuclear Information System (INIS)

    Purpose: To evaluate the efficacy of antithrombotic agents in the prevention of stenosis of polytetrafluoroethylene (PTFE)-covered stents in the venous system. Methods: Spiral Z stents covered with PTFE (PTFE-covered stents) were placed in the inferior vena cava (IVC) of 34 dogs. Nineteen dogs, used as a control group, were sacrificed at 2, 4, and 12 weeks. Fifteen dogs, previously given antithrombotic agents [cilostazol (n= 5), warfarin potassium (n= 5), cilostazol plus warfarin potassium (n= 5)] were sacrificed at 4 weeks, and then examined angiographically and histopathologically. The effect of the antithrombotic agents was compared between groups. Results: The patency rate of the antithrombotic agent group was 93% (14/15), which was higher than the control group rate of 63% (12/19). The mean stenosis rate of the patent stent at both ends and at the midportion was lower at 4 weeks in the antithrombotic agent group than in the control group. In particular, the mean stenosis rate in the cilostazol plus warfarin potassium group was significantly lower than the control group (Tukey's test, p < 0.05). The mean neointimal thickness of the patent stent at both ends and at the midportion was thinner at 4 weeks in the antithrombotic agent group than in the control group. In particular, the thickness of the neointima in the cilostazol plus warfarin potassium group was significantly decreased when compared with the control group (Tukey's test p < 0.05). At 4 weeks, endothelialization in the antithrombotic agent group tended to be almost identical to that in the control group. Conclusion: The present study suggests that administration of an antithrombotic agent is an effective way of preventing the stenosis induced by a neointimal thickening of PTFE-covered stents in the venous system

  12. Triphlorethol-A from Ecklonia cava Up-Regulates the Oxidant Sensitive 8-Oxoguanine DNA Glycosylase 1

    Directory of Open Access Journals (Sweden)

    Ki Cheon Kim

    2014-10-01

    Full Text Available This study investigated the protective mechanisms of triphlorethol-A, isolated from Ecklonia cava, against oxidative stress-induced DNA base damage, especially 8-oxoguanine (8-oxoG, in Chinese hamster lung fibroblast V79-4 cells. 8-Oxoguanine DNA glycosylase-1 (OGG1 plays an important role in the removal of 8-oxoG during the cellular response to DNA base damage. Triphlorethol-A significantly decreased the levels of 8-oxoG induced by H2O2, and this correlated with increases in OGG1 mRNA and OGG1 protein levels. Furthermore, siOGG1-transfected cell attenuated the protective effect of triphlorethol-A against H2O2 treatment. Nuclear factor erythroid 2–related factor 2 (Nrf2 is a transcription factor for OGG1, and Nrf2 combines with small Maf proteins in the nucleus to bind to antioxidant response elements (ARE in the upstream promoter region of the OGG1 gene. Triphlorethol-A restored the expression of nuclear Nrf2, small Maf protein, and the Nrf2-Maf complex, all of which were reduced by oxidative stress. Furthermore, triphlorethol-A increased Nrf2 binding to ARE sequences and the resulting OGG1 promoter activity, both of which were also reduced by oxidative stress. The levels of the phosphorylated forms of Akt kinase, downstream of phosphatidylinositol 3-kinase (PI3K, and Erk, which are regulators of OGG1, were sharply decreased by oxidative stress, but these decreases were prevented by triphlorethol-A. Specific PI3K, Akt, and Erk inhibitors abolished the cytoprotective effects of triphlorethol-A, suggesting that OGG1 induction by triphlorethol-A involves the PI3K/Akt and Erk pathways. Taken together, these data indicate that by activating the DNA repair system, triphlorethol-A exerts protective effects against DNA base damage induced by oxidative stress.

  13. Fluid Collection in the Right Lateral Portion of the Superior Aortic Recess Mimicking a Right Mediastinal Mass: Assessment with Chest Posterior Anterior and MDCT

    Energy Technology Data Exchange (ETDEWEB)

    Shn, Dong Rock; Ryu, Dae Shick; Park, Man Soo; Jung, Seung Mun; Ahn, Jae Hong; Lee, Jong Hyeog; Choi, Soo Jung [Dept. of Radiology, Gangneung Asan Hospital, College of Medicine, University of Ulsan, Gangneung (Korea, Republic of)

    2012-09-15

    We observed patients in whom the fluid collection in the right lateral portion of the superior aortic recess on computed tomography (CT) scans mimicked a right anterior mediastinal mass on chest PA radiographs. The purpose of this study was to assess chest PA and CT features of these patients. All chest PA radiographs and CT scans in 9 patients were reviewed by two radiologists on a consensus basis; for the presence of pleural effusion, pulmonary edema and heart size on chest PA radiographs. For the portion of the fluid collection in the superior aortic recess (SAR), a connection between the right lateral portion of the SAR (rSAR) and posterior portion of the SAR (pSAR) on CT scans, and the distance between the right lateral margin of the rSAR and the right lateral margin of the superior vena cava. Fluid collection in the rSAR on CT scans caused a right anterior mediastinal mass or a bulging contour on chest PA radiographs in all women patients. All patients showed cardiomegaly, five patients had pleural effusion, and two patients had mild pulmonary edema. Further, eight patients showed a connection between the rSAR and the pSAR. The characteristic features of these patients are the right anterior mediastinal mass-like opacity due to fluid collection in the rSAR, are bulging contour with a smooth margin and cardiomegaly regardless of pulmonary edema on the chest PA radiographs, and fluid connection between the rSAR and the pSAR on CT scans.

  14. [Compensative dilatation of the vena azygos by abnormalities of the vena cava inferior - a contribution to the differential diagnosis of the tumorsuspected right tracheobronchial angle (author's transl)].

    Science.gov (United States)

    Strauss, H J; Strauss, G

    1976-08-01

    Report on 2 patients, with a mediastinal enlargement at the right tracheobronchial angle revealing an ectasis of the orifice of vena-azygos. It could be shown that the enlargement of the vena azygos ist due to an increase of the flow-volume, caused by an abnormal embryonic drainage of the vena cava inferior into the vena azygos. The diagnostic possibilities for differentiation from vascular and nonvascular space-occupying processes in that region are discussed. An exact diagnosis is possible by angiography. PMID:1020364

  15. [On the venous system in the retroperitoneal region (a contribution to the persistence of the primitive vena cava system) (author's transl)].

    Science.gov (United States)

    Besier, H; Stofft, E

    1977-01-01

    A vasal anomaly in the region of the Vena cava inferior is being described in the corpse of a 25-year-old man. 1. In the course of development the V. subcardinalis has not been joined to the Pars hepatica of the V. cava inferior, which originates from the V. hepatis revehens communis. In our case the Anastomosis intersubcardinalis remains and is subjected to a slight retroaortal displacement to the left. 2. Among the Vv. sacrocardinales the V. sacrocardinalis sinistra, which ought to involute after the sixth embryonal week, has been retained together with the Anastomosis intersacrocardinalis. 3. The Vv. supracardinales are connected with the intersubcardinal anastomosis and the intersupracardinal transversal anastomosis has been retained. 4. The Vv. caudales end in the Anastomosis sacrocardinalis at a point before the Sacrum and the Anastomosis intercaudalis has been retained, too. 5. The caudal section of the right lower cardinal vein in its prerenal part is retained with an anastomosis to the right subcardinal vein. 6. The portal blood of the liver is directly distributed to the atrium dextrum after it has passed through three Vv. hepaticae. The Lig. venosum is intrahepatic and is joined to the Vv. hepaticae. 7. The primitive bilateral-symmetric veinous system of the caudal half of the body continues to exist almost completely. PMID:603065

  16. Absent right superior caval vein in situs solitus

    DEFF Research Database (Denmark)

    Lytzen, Rebekka; Sundberg, Karin; Vejlstrup, Niels

    2015-01-01

    Introduction In up to 0.07% of the general population, the right anterior cardinal vein obliterates and the left remains open, creating an absent right superior caval vein and a persistent left superior caval vein. Absent right superior caval vein is associated with additional congenital heart...... disease in about half the patients. We wished to study the consequences of absent right superior caval vein as an incidental finding on prenatal ultrasonic malformation screening. Material and methods This is a retrospective case series study of all foetuses diagnosed with absent right superior caval vein...... at the national referral hospital, Rigshospitalet, Denmark, from 2009 to 2012. RESULTS: In total, five cases of absent right superior caval vein were reviewed. No significant associated cardiac, extra-cardiac, or genetic anomalies were found. Postnatal echocardiographies confirmed the diagnosis and...

  17. Superior Mesenteric Artery Syndrome. An Infrequent Complications of Scoliosis Surgery.

    OpenAIRE

    Balık, Emre; Keskin, Metin; Akgül, Turgut; Bayraktar, Adem; Dikici, Fatih

    2014-01-01

    Superior mesenteric artery syndrome is a rare condition that causes a proximal small intestinal obstruction due to contraction of the angle between the superior mesenteric artery and the aorta. Scoliosis surgery is one of the 15 reasons for superior mesenteric artery syndrome, which can present with acute or chronic manifestations. Although conservative treatment is usually possible, surgical treatment is required in certain cases that cannot be treated using conservative methods. In this pap...

  18. Carbon phosphide monolayers with superior carrier mobility

    Science.gov (United States)

    Wang, Gaoxue; Pandey, Ravindra; Karna, Shashi P.

    2016-04-01

    Two dimensional (2D) materials with a finite band gap and high carrier mobility are sought after materials from both fundamental and technological perspectives. In this paper, we present the results based on the particle swarm optimization method and density functional theory which predict three geometrically different phases of the carbon phosphide (CP) monolayer consisting of sp2 hybridized C atoms and sp3 hybridized P atoms in hexagonal networks. Two of the phases, referred to as α-CP and β-CP with puckered or buckled surfaces are semiconducting with highly anisotropic electronic and mechanical properties. More remarkably, they have the lightest electrons and holes among the known 2D semiconductors, yielding superior carrier mobility. The γ-CP has a distorted hexagonal network and exhibits a semi-metallic behavior with Dirac cones. These theoretical findings suggest that the binary CP monolayer is a yet unexplored 2D material holding great promise for applications in high-performance electronics and optoelectronics.Two dimensional (2D) materials with a finite band gap and high carrier mobility are sought after materials from both fundamental and technological perspectives. In this paper, we present the results based on the particle swarm optimization method and density functional theory which predict three geometrically different phases of the carbon phosphide (CP) monolayer consisting of sp2 hybridized C atoms and sp3 hybridized P atoms in hexagonal networks. Two of the phases, referred to as α-CP and β-CP with puckered or buckled surfaces are semiconducting with highly anisotropic electronic and mechanical properties. More remarkably, they have the lightest electrons and holes among the known 2D semiconductors, yielding superior carrier mobility. The γ-CP has a distorted hexagonal network and exhibits a semi-metallic behavior with Dirac cones. These theoretical findings suggest that the binary CP monolayer is a yet unexplored 2D material holding great

  19. Multi-Objective Lake Superior Regulation

    Science.gov (United States)

    Asadzadeh, M.; Razavi, S.; Tolson, B.

    2011-12-01

    At the direction of the International Joint Commission (IJC) the International Upper Great Lakes Study (IUGLS) Board is investigating possible changes to the present method of regulating the outflows of Lake Superior (SUP) to better meet the contemporary needs of the stakeholders. In this study, a new plan in the form of a rule curve that is directly interpretable for regulation of SUP is proposed. The proposed rule curve has 18 parameters that should be optimized. The IUGLS Board is also interested in a regulation strategy that considers potential effects of climate uncertainty. Therefore, the quality of the rule curve is assessed simultaneously for multiple supply sequences that represent various future climate scenarios. The rule curve parameters are obtained by solving a computationally intensive bi-objective simulation-optimization problem that maximizes the total increase in navigation and hydropower benefits of the new regulation plan and minimizes the sum of all normalized constraint violations. The objective and constraint values are obtained from a Microsoft Excel based Shared Vision Model (SVM) that compares any new SUP regulation plan with the current regulation policy. The underlying optimization problem is solved by a recently developed, highly efficient multi-objective optimization algorithm called Pareto Archived Dynamically Dimensioned Search (PA-DDS). To further improve the computational efficiency of the simulation-optimization problem, the model pre-emption strategy is used in a novel way to avoid the complete evaluation of regulation plans with low quality in both objectives. Results show that the generated rule curve is robust and typically more reliable when facing unpredictable climate conditions compared to other SUP regulation plans.

  20. The Business Value of Superior Energy Performance

    Energy Technology Data Exchange (ETDEWEB)

    McKane, Aimee; Scheihing, Paul; Evans, Tracy; Glatt, Sandy; Meffert, William

    2015-08-04

    Industrial facilities participating in the U.S. Department of Energy’s (US DOE) Superior Energy Performance (SEP) program are finding that it provides them with significant business value. This value starts with the implementation of ISO 50001-Energy management system standard, which provides an internationally-relevant framework for integration of energy management into an organization’s business processes. The resulting structure emphasizes effective use of available data and supports continual improvement of energy performance. International relevance is particularly important for companies with a global presence or trading interests, providing them with access to supporting ISO standards and a growing body of certified companies representing the collective knowledge of communities of practice. This paper examines the business value of SEP, a voluntary program that builds on ISO 50001, inviting industry to demonstrate an even greater commitment through third-party verification of energy performance improvement to a specified level of achievement. Information from 28 facilities that have already achieved SEP certification will illustrate key findings concerning both the value and the challenges from SEP/ISO 50001 implementation. These include the facilities’ experience with implementation, internal and external value of third-party verification of energy performance improvement; attractive payback periods and the importance of SEP tools and guidance. US DOE is working to bring the program to scale, including the Enterprise-Wide Accelerator (SEP for multiple facilities in a company), the Ratepayer-Funded Program Accelerator (supporting tools for utilities and program administrators to include SEP in their program offerings), and expansion of the program to other sectors and industry supply chains.

  1. Superior corrosion resistance by niobium coating

    International Nuclear Information System (INIS)

    Niobium is a reactive metal which passivates spontaneously in many aggressive environments. Niobium metal also has favorable thermal and mechanical properties for use in the chemical process industries as process equipment or ancillary components which require high reliability and extensive service life. Niobium coatings can be used in applications where superior resistance against aqueous corrosion or erosion in hot-gases is needed. In this study the corrosion resistance of electrodeposited niobium on AISI 316 stainless steels in acid media has been studied. The structure and composition of niobium coatings are reviewed. The morphology, microstructure and defects were studied using a scanning electron microscope. In short term experiments the electrolyte was 30% H2SO4 at a temperature of 298 K and during long term measurements the electrolyte was 1 M H2SO4. Both Alternating Current (AC) and Direct Current (DC) electrochemical methods were used to characterize the corrosion behavior of base material and coating-base material system. Short term measurement procedure for coated samples consisted of four different measurements. Polarization resistance values measured by electrochemical impedance spectroscopy showed that the corrosion resistance of niobium coatings was related to the development of a passive layer on the niobium surface. The Long Cyclic Anodic Polarization curves showed that electrodeposited niobium coatings are capable of isolating the substrate material completely from the electrolyte. The Potentiostatic Exertion measurements showed that the corrosion resistance of electrodeposited niobium coatings was five orders of magnitude better than of the base material AISI 316 in 30 % H2SO2 electrolyte

  2. Large cell non-Hodgkin's lymphoma masquerading as renal carcinoma with inferior vena cava thrombosis: a case report

    Directory of Open Access Journals (Sweden)

    Weissman Alan

    2011-06-01

    Full Text Available Abstract Introduction Many cancers are associated with inferior vena cava (IVC obstruction, but very few cancers have the ability to propagate within the lumen of the renal vein or the IVC. Renal cell carcinoma is the most common of these cancers. Renal cancer with IVC extension has a high rate of recurrence and a low five year survival rate. Case presentation A 62-year-old Caucasian woman previously in good health developed the sudden onset of severe reflux symptoms and right-sided abdominal pain that radiated around the right flank. A subsequent ultrasound and CT scan revealed a right upper pole renal mass with invasion of the right adrenal gland, liver, left renal vein and IVC. This appeared to be consistent with stage III renal cancer with IVC extension. Metastatic nodules were believed to be present in the right pericardial region; the superficial anterior abdominal wall; the left perirenal, abdominal and pelvic regions; and the left adrenal gland. The pattern of these metastases, as well as the invasion of the liver by the tumor, was thought to be atypical of renal cancer. A needle biopsy of a superficial abdominal wall mass revealed a surprising finding: The malignant cells were diagnostic of large-cell, B-cell non-Hodgkin's lymphoma. The lymphoma responded dramatically to systemic chemotherapy, which avoided the need for nephrectomy. Conclusion Lymphomas only rarely progress via intraluminal vascular extension. We have been able to identify only one other case report of renal lymphoma with renal vein and IVC extension. While renal cancer would have been treated with radical nephrectomy and tumor embolectomy, large-cell B-cell lymphomas are treated primarily with chemotherapy, and nephrectomy would have been detrimental. It is important to remember that, rarely, other types of cancer arise from the kidney which are not derived from the renal tubular epithelium. These may be suspected if an atypical pattern of metastases or unusual

  3. Social utopia and technological utopia in the Argentinean lefts wingsthinking in order to change agrarian capitalism, 1890-1945 Utopía social y utopía tecnológica en el pensamiento de las izquierdas argentinas para la transformación del capitalismo agrario, 1890-1945

    Directory of Open Access Journals (Sweden)

    Osvaldo Fabián Graciano

    2010-01-01

    Full Text Available The objectives of this work are to rebuild the Communist and Socialist thinking and the political proposals used, between 1890 and 1945, to set a new model of economics and society within the agrarian sector in the Pampas Region, and which, on its basis, include elements of social and technological utopias. Along the first half of the twentieth century, the left wings developed several projects aimed to transform the agrarian economics and society in Argentina and thus, tried to influence the modifications of social and economics rural relations dominant in the country, and in particular in the Pampas Region. Those proposals started to throw the imaginary of a rural world different to the current upon the speech and the political thinking of the left wings. In many of them shaped as a social utopia and in others shaped as a technological utopia, for its realization.Este trabajo tiene como objetivos reconstruir el pensamiento socialista y comunista y las propuestas políticas con las que buscaron entre 1890 y 1945, concretar un nuevo modelo de sociedad y economía en el agro pampeano y que en sus fundamentos inscribían elementos de las utopías sociales y las tecnológicas. A lo largo de la primera mitad del siglo XX las izquierdas formularon diversos proyectos para la transformación de la economía y la sociedad agrarias argentina, intentando con ellos incidir en la modificación de las relaciones económicas y sociales rurales dominantes en el país y en particular en su región pampeana. Esas propuestas fueron proyectando en el discurso y en el pensamiento político de izquierdas el imaginario de un mundo rural alternativo al vigente, tomando en muchas de ellas la forma de la utopía social y en otras la de la utopía de tipo tecnológico para su realización.

  4. Warden repair for superior sinus venosus atrial septal defect and anomalous pulmonary venous drainage in children: Anesthesia and transesophageal echocardiography perspectives

    Science.gov (United States)

    Aggarwal, Neelam; Gadhinglajkar, Shrinivas; Sreedhar, Rupa; Dharan, Baiju S.; Chigurupati, Keerthi; Babu, Saravana

    2016-01-01

    Objective: Review of intraoperative anesthetic challenges and the role of transesophageal echocardiography in children with sinus venosus atrial septal defect and partial anomalous pulmonary venous drainage undergoing Warden repair. Design: A retrospective observational case series. Methodolgy: Pediatric patients who underwent Warden repair between October 2011-September 2015 were recruited. Their preoperative clinical details, anesthetic techniques, intraoperative TEE findings and postoperative events were recorded from the medical records. The categorical variables and the continuous variables were expressed as number (percentages) and mean ± SD respectively. Results: A total of 35 patients were operated for Warden repair during the study period. Anesthesia was induced with the aim to prevent any fall in pulmonary vascular resistance. The right internal jugular vein was cannulated under ultrasound guidance using a short length cannula to monitor right superior vena cava pressure. Intraoperative TEE revealed the drainage of PAPVC high into RSVC in 22 patients. Persistent LSVC was found in 9 patients. After repair, TEE imaging detected a high gradient at Warden anastomotic site in 5 patients and 3 of them required revision of surgery. Rerouted pulmonary veins required surgical correction in 2 patients in view of obstruction. None of them had pulmonary venous and SVC obstruction in the postoperative period. Conclusion: The primary aim of anesthesia is to avoid any fall in PVR. Right IJV cannulation can be beneficial. The intraoperative TEE can help in delineating the anatomy of lesion and detecting anastomotic site obstruction. PMID:27052072

  5. Warden repair for superior sinus venosus atrial septal defect and anomalous pulmonary venous drainage in children: Anesthesia and transesophageal echocardiography perspective

    Directory of Open Access Journals (Sweden)

    Neelam Aggarwal

    2016-01-01

    Full Text Available Objective: Review of intraoperative anesthetic challenges and the role of transesophageal echocardiography in children with sinus venosus atrial septal defect and partial anomalous pulmonary venous drainage undergoing Warden repair. Design: A retrospective observational case series. Methodolgy: Pediatric patients who underwent Warden repair between October 2011-September 2015 were recruited. Their preoperative clinical details, anesthetic techniques, intraoperative TEE findings and postoperative events were recorded from the medical records. The categorical variables and the continuous variables were expressed as number (percentages and mean ΁ SD respectively. Results: A total of 35 patients were operated for Warden repair during the study period. Anesthesia was induced with the aim to prevent any fall in pulmonary vascular resistance. The right internal jugular vein was cannulated under ultrasound guidance using a short length cannula to monitor right superior vena cava pressure. Intraoperative TEE revealed the drainage of PAPVC high into RSVC in 22 patients. Persistent LSVC was found in 9 patients. After repair, TEE imaging detected a high gradient at Warden anastomotic site in 5 patients and 3 of them required revision of surgery. Rerouted pulmonary veins required surgical correction in 2 patients in view of obstruction. None of them had pulmonary venous and SVC obstruction in the postoperative period. Conclusion: The primary aim of anesthesia is to avoid any fall in PVR. Right IJV cannulation can be beneficial. The intraoperative TEE can help in delineating the anatomy of lesion and detecting anastomotic site obstruction.

  6. Comparison of tricuspid inflow and superior vena caval Doppler velocities in acute simulated hypovolemia: new non-invasive indices for evaluating right ventricular preload

    Directory of Open Access Journals (Sweden)

    Duan Yun-You

    2006-05-01

    Full Text Available Abstract Background Assessment of cardiac preload is important for clinical management of some emergencies related to hypovolemia. Effects of acute simulated hypovolemia on Doppler blood flow velocity indices of tricuspid valve (TV and superior vena cava (SVC were investigated in order to find sensitive Doppler indices for predicting right ventricular preload. Methods Doppler flow patterns of SVC and TV in 12 healthy young men were examined by transthoracic echocardiography (TTE during graded lower body negative pressure (LBNP of up to -60 mm Hg which simulated acute hypovolemia. Peak velocities of all waves and their related ratios (SVC S/D and tricuspid E/A were measured, calculated and statistically analyzed. Results Except for the velocity of tricuspid A wave, velocities of all waves and their related ratios declined during volume decentralization. Of all indices measured, the peak velocities of S wave and AR wave in SVC correlated most strongly with levels of LBNP (r = -0.744 and -0.771, p Conclusion The S and AR velocities are of good values in assessing right ventricular preload. Monitoring SVC flow may provide a relatively noninvasive means to assess direct changes in right ventricular preload.

  7. Crashworthy Seats Would Afford Superior Protection

    Science.gov (United States)

    Gohmert, Dustin

    2009-01-01

    Seats to prevent or limit crash injuries to astronauts aboard the crew vehicle of the Orion spacecraft are undergoing development. The design of these seats incorporates and goes beyond crash-protection concepts embodied in prior spacecraft and racing-car seats to afford superior protection against impacts. Although the seats are designed to support astronauts in a recumbent, quasi-fetal posture that would likely not be suitable for non-spacecraft applications, parts of the design could be adapted to military and some civilian aircraft seats and to racing car seats to increase levels of protection. The main problem in designing any crashworthy seat is to provide full support of the occupant against anticipated crash and emergency-landing loads so as to safely limit motion, along any axis, of any part of the occupant s body relative to (1) any other part of the occupant s body, (2) the spacecraft or other vehicle, and (3) the seat itself. In the original Orion spacecraft application and in other applications that could easily be envisioned, the problem is complicated by severe limits on space available for the seat, a requirement to enable rapid egress by the occupant after a crash, and a requirement to provide for fitting of the seat to a wide range of sizes and shapes of a human body covered by a crash suit, space suit, or other protective garment. The problem is further complicated by other Orion-application-specific requirements that must be omitted here for the sake of brevity. To accommodate the wide range of crewmember body lengths within the limits on available space in the original Orion application, the design provides for taller crewmembers to pull their legs back closer toward their chests, while shorter crewmembers can allow their legs to stretch out further. The range of hip-support seat adjustments needed to effect this accommodation, as derived from NASA s Human Systems Integration Standard, was found to define a parabolic path along which the knees

  8. Non-monotonic repayment contracts are superior: an experimental approach

    OpenAIRE

    Reiss, J.P.; Wolff, I.

    2007-01-01

    We experimentally investigate if theoretically superior non-monotonic repayment contracts yield superior results in the laboratory. We find replacing standard debt contracts with repayment-equivalent non-monotonic contracts increases entrepreneurial income by 170% and total surplus by 30%.

  9. 14 CFR 385.7 - Exercise of authority by superiors.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Exercise of authority by superiors. 385.7 Section 385.7 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION... Department's principle of management responsibility, the superior may choose to exercise the assigned...

  10. Evaluation and diagnosis of the cathodic protection of ducts in the left margin of the Tonala River of the Superintendencia General de Ductos Minatitlan; Evaluacion y diagnostico de la proteccion catodica en la margen izquierda del Rio Tonala de la Superintendencia General de Ductos Minatitlan

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez N, Miguel A; Malo T, Jose M; Munoz Ledo C, Ramon; Uruchurtu C, Jorge; Castrejon G, Rafael [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico); Sanchez G, Luis; Algarra M, Raul; Abreu L, Emilio [Gerencia de Mantenimiento, Pemex (Mexico)

    2003-07-01

    The present study contains the measurements obtained as a part of the evaluation of the protection system of ducts located in the left margin of the Tonal River, made by the Gerencia de Materiales y Procesos Quimicos of the Instituto de Investigaciones Electricas (IIE) during the last trimester of year 2001. Also, the measurements of potential in conditions of instantaneous ignition and extinguished in measuring posts of the duct in Rights of Way (DDV) Tonala-Nudo Teapa 23 are studied, in order to determine the real protection level reached by the cathodic protection system, the possible unprotected zones and the possible corrective measures that lead to a safe operation of the ducts. [Spanish] El presente estudio contiene las mediciones obtenidas como parte de la evaluacion del sistema de proteccion de los ductos ubicados en la margen izquierda del rio Tonala, realizadas por la Gerencia de Materiales y Procesos Quimicos del Instituto de Investigaciones Electricas (IIE) durante el ultimo trimestre del ano 2001. Asimismo, se tratan las mediciones de potencial en condiciones de encendido y apagado instantaneo en postes de medicion del ducto en los Derechos De Via (DDV) Tonala-Nudo Teapa 23, con el proposito de determinar el nivel real de proteccion alcanzado por el sistema de proteccion catodica, las posibles zonas desprotegidas y las posibles medidas correctivas que conduzcan a una operacion segura de los ductos.

  11. Phlegmasia Caerulea Dolens in a Patient With an Inferior Vena Cava Filter: Treatment of Massive Iliocaval Thrombosis Using Local Intravenous Catheter-Directed Thrombolysis

    Energy Technology Data Exchange (ETDEWEB)

    Cookson, Daniel, E-mail: danielthomascookson@yahoo.co.uk [Middlemore Hospital, Department of Radiology (New Zealand); Caldwell, Stuart, E-mail: stuart.caldwell@middlemore.co.nz [Middlemore Hospital, Department of Vascular Surgery (New Zealand)

    2012-10-15

    Phlegmasia caerulea dolens (PCD) is a potentially disastrous complication of inferior vena cava filter insertion, and its optimum management has not been clearly established. We present a case report of a patient with pulmonary embolism and acute adrenal haemorrhage who developed PCD secondary to massive iliocaval thrombosis after insertion of a Cook Celect removable filter. Local intravenous catheter-directed thrombolysis (CDT), followed by systemic anticoagulation, achieved limb salvage and virtual resolution of symptoms at 3 months without complications. CDT can be a successful primary treatment of filter-associated PCD and can be safe in selected patients with acute nontraumatic haemorrhage. Systemic anticoagulation may subsequently restore complete venous patency and may therefore be a useful approach to postthrombolysis management of residual iliocaval thrombus when filter removal is indicated.

  12. Catheter-Directed Thrombolysis of Acute Deep Vein Thrombosis in the Lower Extremity of a Child with Interrupted Inferior Vena Cava

    International Nuclear Information System (INIS)

    We present the case of a 14-year-old girl who developed acute deep vein thrombosis (DVT) in her right lower extremity. Laboratory testing revealed protein S deficiency, and the patient's father also had this abnormality with a history of lower extremity DVT. Manual thromboaspiration followed by catheter-directed thrombolysis resulted in total clearance of all thrombi. Computed tomography and later venography revealed an interrupted inferior vena cava. Catheter-directed thrombolysis is an established treatment for adults with acute DVT. To the best of our knowledge, this report is the first to describe catheter-directed thrombolysis in a pediatric patient with lower extremity DVT. Our results suggest that catheter-directed thrombolysis is safe and effective for use in selected older children and adolescents with acute DVT in the lower extremity

  13. Phlegmasia Caerulea Dolens in a Patient With an Inferior Vena Cava Filter: Treatment of Massive Iliocaval Thrombosis Using Local Intravenous Catheter-Directed Thrombolysis

    International Nuclear Information System (INIS)

    Phlegmasia caerulea dolens (PCD) is a potentially disastrous complication of inferior vena cava filter insertion, and its optimum management has not been clearly established. We present a case report of a patient with pulmonary embolism and acute adrenal haemorrhage who developed PCD secondary to massive iliocaval thrombosis after insertion of a Cook Celect removable filter. Local intravenous catheter-directed thrombolysis (CDT), followed by systemic anticoagulation, achieved limb salvage and virtual resolution of symptoms at 3 months without complications. CDT can be a successful primary treatment of filter-associated PCD and can be safe in selected patients with acute nontraumatic haemorrhage. Systemic anticoagulation may subsequently restore complete venous patency and may therefore be a useful approach to postthrombolysis management of residual iliocaval thrombus when filter removal is indicated.

  14. La educación superior en el mundo: Europa

    OpenAIRE

    Sadlak, Jan; de Miguel, Jesús M.

    2006-01-01

    Este artículo demuestra que son necesarios y posibles un pensamiento político y el desarrollo de políticas y medidas concretas que tengan por objeto mejorar la educación superior y su papel. Sin embargo, el mayor problema es el nivel inadecuado de financiación de la educación superior. El informe de la Comisión Europea sobre El papel de las universidades en la Europa del conocimiento, definió los cinco retos principales del sistema de educación superior: una demanda creciente de educación su...

  15. The application of GxA8xB9nther Tulip retrievable inferior vena cava filter in interventional treatment for acute deep venous thrombosis of lower extremity

    International Nuclear Information System (INIS)

    Objective: To discuss the therapeutic efficacy and manipulation skill of Gunther Tulip retrievable inferior vena cava filter in interventional treatment for acute deep venous thrombosis of lower extremity. Methods: From September 2007 to April 2008, a total of 36 patients with acute deep venous thrombosis of lower extremity were treated in our hospital. The time of the onset of disease ranged from 1 day to 12 days. The precipitation causes included prolonged lying in bed due to surgery or bone fracture (n = 18) and postpartum (n = 5), while no obvious precipitation causes could be found in 13 patients. Pulmonary embolism was coexisted in 12 cases. Clinically, the affected limb was swelling and painful, the skin was cyan-purple or pale in color with higher skin temperature. The circumferential length of the affected thigh was 3-10 cm longer than that of normal side. Patients with coexisted pulmonary embolism had the clinical presentation of dyspnea, chest pain, hemoptysis, etc. Gunther Tulip retrievable inferior vena cava filter was implanted via femoral venous access or via right internal jugular venous access, which was followed by intravenous transcatheter thrombolysis. Vascular ultrasonography and angiography were performed 45-75 days after the treatment to confirm that there was no fresh or free thrombus in the veins of lower limb or in the pulmonary arteries. When it was confirmed, Gunther Tulip retrievable inferior vena cava filter was taken out via right internal jugular venous access, which was followed by inferior venacavography. After the procedure anticoagulation and antibiotic medication were employed for 3-5 days. A follow-up for 4-10 months was made. Results: A total of 36 Gunther Tulip retrievable inferior vena cava filters were successfully implanted by one procedure, the average time cost for the filter delivery was 1.5 minutes (0.5-5 minutes). During the delivery procedure, the amplitude of elastic displacement of filter was less than 2 mm. One

  16. 2010 Great Lakes Restoration Initiative Bathymetric Lidar: Lake Superior

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The data contained in this file contain hydrographic and topographic data collected by the Fugro LADS Mk II system along the Lake Superior coast of Minnessota,...

  17. Sonographically guided superior laryngeal nerve block during awake fiberoptic intubation.

    Science.gov (United States)

    Sawka, Andrew; Tang, Raymond; Vaghadia, Himat

    2015-04-15

    We report 5 patients who underwent ultrasound-guided superior laryngeal nerve block before awake intubation and general anesthesia. We used a 8- to 15-MHz hockey stick-shaped ultrasound transducer (HST15-8/20 linear probe, Ultrasonix) to visualize the superior laryngeal nerve. A 3.8-cm 25-G needle was inserted in real time and directed toward the superior laryngeal nerve followed by circumferential placement of local anesthetic. All 5 patients tolerated subsequent awake fiberoptic intubation with either minimal or no sedation. Sonographically guided superior laryngeal nerve block may be useful in patients where identification of landmarks in the neck is difficult as a result of patient anatomy. PMID:25867195

  18. ¿Interculturalizando la educación superior?

    OpenAIRE

    Gullo, Bárbara

    2009-01-01

    La Secretaría de Educación Pública a través de la Coordinación General de Educación Intercultural y Bilingüe (cgeib) publica en 2006 el libro Universidad intercultural. Modelo educativo, de la autoría de María de Lourdes Casillas Muñoz, directora de Educación Media Superior y Superior en la cgeib, y Laura Santini Villar, asesora de Educación Media Superior y Superior en la cgeib. Se trata de una edición reproducida en el marco del convenio de colaboración celebrado entre la Comisión Nacional ...

  19. Drenagem anômala de veia pulmonar inferior direita em veia cava inferior associada a apêndice hepático intracardíaco Anomalous drainage of the right inferior pulmonary vein into the inferior vena cava associated to intrathoracic hepatic appendix

    Directory of Open Access Journals (Sweden)

    Carlos R Moraes

    1988-08-01

    Full Text Available Descreve-se o caso de uma paciente de 61 anos de idade, com drenagem anômala de veia pulmonar inferior direita em veia cava inferior, associada a apêndice hepático intratorácico, herniado através de fenda no diafragma. A correção cirúrgica foi realizada por anastomose direta da veia anômala com o átrio esquerdo, pela redução do apêndice hepático para a cavidade abdominal e, finalmente, pelo fechamento do defeito diafragmático. O pós-operatório decorreu sem qualquer complicação. Os autores chamam a atenção para a raridade do caso.The authors present a case of a 61-year-old woman with anomalous drainage of the right inferior pulmonary vein into the inferior vena cava associated to an intrathoracic hepatic appendix herniated through a diaphragmatic defect. Surgical correction was obtained by direct anastomosis of the anomalous vein to the left atrium, reduction of the hepatic appendix to the abdominal cavity and closure of the diphragmatic defect. The postoperative course was unevenftul. The rarity of this condition is stressed.

  20. Alterações do diâmetro da veia cava caudal nas diferentes fases do ciclo respiratório, como um indicador não invasivo da volémia e correlação com a pressão venosa central

    OpenAIRE

    Monteiro, Carla Alexandra Almeida

    2009-01-01

    ABSTRACT - Ultrasound evaluation of caudal vena cava diameter changes with breathing as an estimate of volemia and central venous pressure - Estimating volemia is essential for the care of critical patients. Traditionally this has been achieved through indirect parameters or invasive methods such as central venous pressure (CVP). Recently several human studies demonstrated that ultrasound (US) kinetic respiratory changes of caudal vena cava (CVC) can be a reliable indicator of the v...

  1. Influence of superior-subordinate communication on employee satisfaction

    OpenAIRE

    Wińska, Joanna

    2010-01-01

    The paper concentrates on the review of the research carried out in the field of the relation between superior-subordinate communication in a company and its influence on employee job satisfaction in the last decade. The purpose of the paper has been to identify the possibilities of further research in that field in Poland. International research confirms direct and strong impact of good superior-subordinate communication on employee satisfaction. In future studies in that field a qualitative...

  2. Stomatitis sub-prosthesis in patients with superior dental prosthesis

    OpenAIRE

    Antonia Martina Francisco Local; Yoel González Beriau; Ana Gloria Vázquez de León

    2009-01-01

    Background: The stomatitis sub-prosthesis is one of the most frequent changes in hard palate mucous membrane in patients with mucous-supported dental prosthesis. It can be caused by multiple factors, which makes its study and prognosis more difficult. Objective: To describe the occurrence of stomatitis sub-prosthesis and its causes in patients with superior dental prosthesis. Method: Descriptive study including all the patients with superior dental prosthesis examined in the odontology consul...

  3. Measuring sustained superior performance at the firm level

    OpenAIRE

    Grifell i Tatjé, Emili; Marquès i Gou, Pilar

    2002-01-01

    This paper proposes a two-dimensional Strategic Performance Measure (SPM) to evaluate the achievement of sustained superior performance. This proposal builds primarily on the fact that, under the strategic management perspective, a firm's prevalent objective is the pursuit of sustained superior performance. Three basic conceptual dimensions stem from this objective: relativity, sign dependence, and dynamism. These are the foundations of the SPM, which carries out a separate evaluation of the ...

  4. Protein tyrosine phosphatases expression during development of mouse superior colliculus

    OpenAIRE

    Reinhard, Jacqueline; Horvat-Bröcker, Andrea; Illes, Sebastian; Zaremba, Angelika; Knyazev, Piotr; Ullrich, Axel; Faissner, Andreas

    2009-01-01

    Protein tyrosine phosphatases (PTPs) are key regulators of different processes during development of the central nervous system. However, expression patterns and potential roles of PTPs in the developing superior colliculus remain poorly investigated. In this study, a degenerate primer-based reverse transcription-polymerase chain reaction (RT-PCR) approach was used to isolate seven different intracellular PTPs and nine different receptor-type PTPs (RPTPs) from embryonic E15 mouse superior col...

  5. The influence of working memory on the anger superiority effect

    OpenAIRE

    Moriya, J.; Koster, Ernst; De Raedt, Rudi

    2014-01-01

    The anger superiority effect shows that an angry face is detected more efficiently than a happy face. However, it is still controversial whether attentional allocation to angry faces is a bottom-up process or not. We investigated whether the anger superiority effect is influenced by top-down control, especially working memory (WM). Participants remembered a colour and then searched for differently coloured facial expressions. Just holding the colour information in WM did not modulate the ange...

  6. Computed tomography imaging for superior semicircular canal dehiscence syndrome

    International Nuclear Information System (INIS)

    Superior semicircular canal dehiscence is a newly described syndrome of sound and/or pressure induced vertigo. Computed tomography (CT) imaging plays an important role in confirmation of a defect in the bone overlying the canal. A high resolution CT technique utilising 0.5 mm or thinner slices and multi-planar reconstructions parallel to the superior semicircular canal is required. Placement of a histogram over a suspected defect can assist CT diagnosis

  7. Differential diagnosis of cervical radiculopathy and superior pulmonary sulcus tumor

    Institute of Scientific and Technical Information of China (English)

    GU Rui; KANG Ming-yang; GAO Zhong-li; ZHAO Jian-wu; WANG Jin-cheng

    2012-01-01

    Background The result would be disastrous if the superior pulmonary sulcus tumor (Pancoast tumor) was misdiagnosed as degenerative cervical spine diseases.The aim of this study was to investigate the differential diagnosis methods of cervical radiculopathy and superior pulmonary sulcus tumor.Methods Clinical manifestations,physical,and radiological findings of 10 patients,whose main complaints were radiating shoulder and arm pain and later were diagnosed with superior pulmonary sulcus tumor,were reviewed and compared with those of cervical radiculopathy.Results Superior pulmonary sulcus tumor patients have shorter mean history and fewer complaints of neck pain or limitation of neck movement.Physical examination showed almost normal cervical spine range of motion.Spurling's neck compression test was negative in all patients.Anteroposterior cervical radiographs showed the lack of pulmonary air at the top of the affected lung in all cases and first rib encroachment in one case.The diagnosis of superior pulmonary sulcus tumor can be further confirmed by CT and MRI.Conclusions By the method of combination of history,physical examination,and radiological findings,superior pulmonary sulcus tumor can be efficiently differentiated from cervical radiculopathy.Normal motion range of the cervical spine,negative Spurling's neck compression test,and the lack of pulmonary air at the top of the affected lung in anteroposterior cervical radiographs should be considerad as indications for further chest radiograph examinations.

  8. Marketing at Superior: Theory meets application in the field

    International Nuclear Information System (INIS)

    The field marketing practices of Superior Propane in rural Ontario are illustrated. In the Smithville area, Superior's customer base consists of agricultural, industrial, commercial, and residential customers, plus a large market for auto propane. A 6,900 ft2 showroom presents a representative selection of the wide range of appliances using propane. Superior's Smithville branch is one of the top five in Canada, in terms of volume. To expand business beyond its traditional branch structures, Superior has an Independent Partners Program which is aimed at all phases of business including independent sales agents, conversions, propane fuel stops, appliance installations, and building contractors. In Keswick, located in the summer resort region on the south shore of Lake Simcoe, Superior's base load is 40% commercial and 20% each agricultural, residential, and automotive. A new 4,100 ft2 showroom was recently constructed with separate display units for each appliance. The new building has brought increases in auto propane and appliance sales. The different branches of Superior Propane are able to tailor their marketing programs according to local needs by choosing the appropriate programs from those available at head office. 5 figs

  9. Unusual morphology of the superior belly of omohyoid muscle

    Science.gov (United States)

    Thangarajan, Rajesh; Shetty, Prakashchandra; D'souza, Melanie Rose

    2014-01-01

    Though anomalies of the superior belly of the omohyoid have been described in medical literature, absence of superior belly of omohyoid is rarely reported. Herein, we report a rare case of unilateral absence of muscular part of superior belly of omohyoid. During laboratory dissections for medical undergraduate students, unusual morphology of the superior belly of the omohyoid muscle has been observed in formalin embalmed male cadaver of South Indian origin. The muscular part of the superior belly of the omohyoid was completely absent. The inferior belly originated normally from the upper border of scapula, and continued with a fibrous tendon which ran vertically lateral to sternohyoid muscle and finally attached to the lower border of the body of hyoid bone. The fibrous tendon was about 1 mm thick and received a nerve supply form the superior root of the ansa cervicalis. As omohyoid mucle is used to achieve the reconstruction of the laryngeal muscles and bowed vocal folds, the knowledge of the possible anomalies of the omohyoid muscle is important during neck surgeries. PMID:25548726

  10. Os rankings na educação superior brasileira: políticas de governo ou de estado? Los rankings en la educación superior brasileña: ¿políticas de gobierno de estado? The rankings in Brazilian higher education: policies of government or state?

    Directory of Open Access Journals (Sweden)

    Adolfo Ignacio Calderón

    2011-12-01

    Full Text Available O presente artigo, de cunho teórico, analisa o lugar dos rankings nas políticas de Educação Superior do Estado Brasileiro tendo como parâmetro quatro mandatos presidências, dois mandatos do governo Fernando Henrique Cardoso (1995-2002, marcados pela implantação das reformas neoliberais, e dois mandatos do governo Luiz Inácio Lula da Silva (2003-2010, como alternativa de esquerda democrática para América Latina diante da expansão neoliberal. Defende-se a hipótese de que passados quatro mandatos e o governo de dois presidentes representantes de projetos políticos teoricamente opostos, os rankings, enquanto estratégias de estímulo da concorrência para a melhoria da qualidade da educação superior ganharam consenso e legitimidade técnica no âmbito governamental, deixando de serem políticas de governos específicos para se tornarem política de longo prazo do Estado Brasileiro, acima dos interesses dos grupos políticos que se alternaram no poder.El presente artículo, de cuño teórico, analiza el lugar de los rankings en las políticas de Educación Superior del Estado brasileño, y tiene como parámetro cuatro mandatos presidenciales, dos de Fernando Henrique Cardoso (1995-2002, marcados por la implantación de las reformas neoliberales, y dos del gobierno de Luiz Inácio Lula da Silva (2003-2010, considerado como una alternativa de la izquierda democrática para América Latina frente a la expansión neoliberal. Se defiende la hipótesis de que después de cuatro mandatos y el gobierno de dos presidentes, representantes de proyectos teóricamente opuestos, los rankings, en la condición de estrategias de estímulo de la competición para la mejora de la calidad de la educación superior, obtuvieron consenso y legitimidad técnica en el ámbito gubernamental, dejando de ser vistos como políticas de determinados gobiernos para convertirse en una política a largo plazo del Estado brasileño, sin relación con los intereses de

  11. Cerebellar infarction in vascular territory of arteria cerebelli superior

    Directory of Open Access Journals (Sweden)

    Savić Dejan

    2010-01-01

    Full Text Available Introduction. Cerebellar vascular diseases are focal cerebrovascular diseases in posterior circulation - vertebrobasilar system. The cerebellum is supplied by three main arteries arising from the vertebrobasilar system: arteria cerebelli inferior posterior, arteria cerebelli inferior anterior and arteria cerebelli superior. Cerebelar infarctions are rare but unpredictable disorders. The aim of this study was determination of main risk factors, clinical presentation and prognosis of the cerebellar infarctions in distal vascular territory of the arteria cerebelli superior. Material and methods. We evaluated 60 patients hospitalized after acute cerebellar infarction among other hospitalized patients in five year period. In 18 patients computerized tomography demonstrated infarction in distal vascular territory of the arteria cerebelli superior. All patients underwent clinical and other diagnostic investigations (computerized tomography, electrocardyography and standard blood tests and were questioned by phone after finishing hospital treatment. Results. Cerebellar infarcts in distal vascular territory of arteria cerebeli superior was 30% of all cerebellar infarcts. The most frequent risk factor was hypertension (66. 7%. Symptomatology and clinical signs were heterogenous but the most frequent were instability (77.8%, vertigo (72.2% and vomiting (55.6% followed by ataxia of the limbs (77.8% and the body (61.1%, nystagmus (55.6% and disarthria (33.3% in clinical presentation. All patients had good recovery in hospital and one year afterwards. Discussion. Infarctions in distribution of arteria cerebelli superior are rare and have multiple risk factors and various clinical features in majority of other studies as in this one. Mass effects are present in several studies but none in this one which reflects contraversions present in other published investigations. Conclusion. Cerebellar infarctions in vascular territory of arteria cerebelli superior have

  12. Origen anómalo de la arteria coronaria izquierda en el seno aórtico derecho y muerte súbita: a propósito de dos casos Anomalous origin of the left coronary artery from the right aortic sinus and sudden death: two cases report

    Directory of Open Access Journals (Sweden)

    L. Saldaña

    2009-01-01

    Full Text Available La persistencia de una estructura coronaria embriológica, el fallo del desarrollo normal o el error en la ubicación de su origen pueden dar lugar a una anomalía de las arterias coronarias. Estas malformaciones son poco frecuentes (0.2-1.2% pero conllevan un riesgo significativo de arritmias, angina, infarto y muerte súbita, riesgo que es mayor durante la infancia y la adolescencia. Presentamos 2 casos de muerte súbita (niño de 8 años y adolescente de 15 años ocurrida durante e inmediatamente después de una actividad física importante. En ambos casos, la autopsia puso de manifiesto la existencia de una anomalía en el origen de la arteria coronaria izquierda consistente en la salida del seno derecho con un curso retroaórtico del vaso anómalo. Al mismo tiempo se realiza una revisión de las anomalías congénitas de las arterias coronarias como causa de muerte súbita.Anomalies in the coronary arteries may result from rudimentary persistence of an embryologic coronary arterial structure, failure of development or misplacement of the vessel connection. These malformations are very infrequent (0.2-1% but determine a significant risk for arrhythmias, angina, infarction and sudden death. This risk is even higher during infancy and adolescence. We report two cases of sudden death (8 and 15 year-old children, which occurred following and during strenuous physical exercise. In both cases, autopsy revealed an anomalous origin of the left main coronary artery from right aortic sinus, with a retroaortic course of the anomalous artery. Furthermore, a review of the congenital anomalies of the coronary arteries and sudden death is performed.

  13. Evaluation of diagnostic reliability of radionuclide phlebography using 99mTc-MAA to detect deep venous thrombosis; Its role in establishing indications for inferior vena cava filter implantation

    International Nuclear Information System (INIS)

    Radionuclide phlebography (RNP) of the lower extremities and pelvis was performed using 99mTc-MAA in 40 patients with pulmonary thromboembolism. Deep venous thrombosis (DVT) was found in all patients, more frequently in the right calf and in the left iliac veins in 20 patients (55%). RNP and contrast phlebography (CP) were performed in 18 patients and confirmed the presence of DVT in all cases. The greatest specificity of RNP was obtained in the left (92.4%) and in the right pelvis (80%). In 12 of 18 patients in whom a cava filter was implanted, specificity of RNP was 100% for the left thigh and 91.7% for other localizations. In establishing indications for cava filter implantation, RNP should be performed prior to CP and bilaterally, but in case of non-indicated CE, RNP findings should be sufficient. (orig.)

  14. Hubungan Diameter Vena Cava Inferior Dengan Nilai N-Terminal Pro-Brain Natriuretic Peptide (Nt-Probnp) Pada Pasien Gagal Jantung Kronik Tidak Terkompensasi Akibat Penyakit Jantung Koroner Dan Penyakit Jantung Hipertensi di RSUP H. Adam Malik Medan

    OpenAIRE

    T. Realsyah

    2016-01-01

    The inferior vena cava (IVC) diameter and degree of inspiratory collapse areused as echocardiographic indices in the estimation of right atrial pressure. N-terminal pro-B natriuretic peptide (NT-ProBNP) are established biomarkers of myocardial wall stress. There is no informationavailable regarding the association between the IVC diameterand NT-ProBNPs in patients with Decompensated Chronic heart failure. The purpose of this investigationis to analyse the correlation of inferior vena c...

  15. Nursing Care of 4 Patients with Inferior Vena Cava Thrombosis Treated by Temporary Inferior Vena Cava Filter plus Catheter-directed Thrombolysis%4例肾静脉以上临时性腔静脉滤器植入联合导管溶栓治疗下腔静脉血栓患者的护理

    Institute of Scientific and Technical Information of China (English)

    周菊珍; 金伟飞; 蒋美; 姚碧连

    2012-01-01

    This paper summarized the nursing experience of four cases of patients with inferior vena cava thrombosis, which were treated with temporary inferior vena cava filter (IVCF) combined with catheter-directed thrombolysis. The importance of nursing went to the placement of IVCF to prevent its displacement, limb nursing and catheter-directed thrombolysis. All the laboratory indexes were under the monitoring and measures were taken for the prevention of complication of pulmonary embolism and education for discharge was conducted as well. During the treatment, bleeding in puncture point occurred in one case, displacement of catheter one case and gastrointestinal bleeding one case and after treatment, all the swelling of extremities and inferior vena cava thrombosis disappeared. IVCF was removed 3 to 4 weeks after discharge and after 3 to 38 months follow-ups, no thrombosis reoccurred.%总结4例下腔静脉血栓患者行肾静脉以上临时腔静脉滤器植入联合腔内导管溶栓治疗的护理经验.做好临时性腔静脉滤器置入的护理,严防滤器移位;做好肢体护理及导管溶栓护理;密切观察患者出血情况,监测实验室指标;预防和观察肺栓塞并发症;做好出院指导.4例患者患肢肿胀消退,下腔静脉血栓均消失,出现穿刺点出血1例,导管移位1例,消化道出血1例,经及时发现积极治疗护理,痊愈出院,术后3~4 周拔除临时滤器,随防3~38 个月无血栓复发.

  16. Geology of Superior Ridge uranium deposits, Ventura County, California

    International Nuclear Information System (INIS)

    Epigenetic uranium deposits with potential commercial value have been found in the lower part of the upper Eocene to lower Miocene Sespe Formation near Ojai, in Ventura County, California. This report describes the geological and geochemical setting of these deposits and postulates a model for their origin. Several uranium deposits are located on Superior Ridge, a topographic high about 3 miles long located just south of White Ledge Peak and 6 to 9 miles west of Ojai (Photo 1). A single uranium deposit on Laguna Ridge is located about 3 miles south of Superior Ridge, and was included with the Superior Ridge deposits in the White Ledge Peak district. A few small deposits are known to exist in other parts of Ventura County. A preliminary model for uranium mineralization in the Sespe Formation postulated that the organic material necessary for concentrating the uranium by chemical reduction or precipitation originated as terrestrial humic acid or humate

  17. Isolated abscess in superior rectus muscle in a child

    Directory of Open Access Journals (Sweden)

    Sushank Ashok Bhalerao

    2015-01-01

    Full Text Available Pyomyositis is a primary bacterial infection of striated muscles nearly always caused by Staphylococcus aureus. Development of the intramuscular abscess involving the extra-ocular muscles (EOMs remains an extremely rare process. We herein present a case of isolated EOM pyomyositis involving superior rectus muscle in a 2-year male child who was referred with complaints of swelling in left eye (LE and inability to open LE since last 1-month. Orbital computed tomography (CT scan showed a well-defined, hypo-dense, peripheral rim-enhancing lesion in relation to left superior rectus muscle suggestive of left superior rectus abscess. The abscess was drained through skin approach. We concluded that pyomyositis of EOM should be considered in any patient presenting with acute onset of orbital inflammation and characteristic CT or magnetic resonance imaging features. Management consists of incision and drainage coupled with antibiotic therapy.

  18. INFORMATION ASSURANCE - INTELLIGENCE - INFORMATION SUPERIORITY RELATIONSHIP WITHIN NATO OPERATIONS

    Directory of Open Access Journals (Sweden)

    Gheorghe BOARU, Ioan-Mihai ILIEŞ

    2011-01-01

    Full Text Available There is a tight relationship between information assurance, the intelligence cycle and information superiority within NATO operations. The intelligence cycle has a discrete architecture and provides on-time and relevant intelligence products to the joint force commanders and to other authorized users in a specifi c joint area of operations. The intelligence cycle must follow the evolution of the operation. A permanent intelligence estimate will be performed during the military decision making process and operations execution. Information superiority is one of the most powerful intelligence cycle achievements. and decisively infuences the success of NATO joint operations. Information superiority must be preserved and enhanced through information assurance. Information assurance is an information operation that must be planned by the military in charge of operation security or by non-military experts, executed by all personnel during the entire intelligence cycle life time and employed during the planning and execution of NATO joint operations.

  19. Papaya Development Model As A Competitive Local Superior Commodity

    Directory of Open Access Journals (Sweden)

    Reny Sukmawani

    2014-12-01

    Full Text Available The aim of this research is to study the comparative advantage and papaya competitive and to design its development model by using the approach of local base agriculture development. This research uses survey method. The resulting research shows that papaya is a base commodity that has comparative advantage and competitive. The development papaya in the district of Sukabumi is quite good bases on eight superior creations. But in order to be the main sector in economic development and has a competition, the development of papaya must concern to its influence factors. In supporting papaya development as a competitive local superior commodity, it needs to be done some efforts are as follows: (1 increase a skillful worker; (2 improve business management; (3 increase papaya productivity by using technology and study papaya planted technology in specific local superior commodity; (4 develop the involvement of the business relation; (5 provide market information and information technology network; and (6 improve infrastructures.

  20. Temporal Bone Fracture Causing Superior Semicircular Canal Dehiscence

    Directory of Open Access Journals (Sweden)

    Kevin A. Peng

    2014-01-01

    Full Text Available Importance. Superior semicircular canal dehiscence (SCD is a third window lesion of the inner ear causing symptoms of vertigo, autophony, tinnitus, and hearing loss. A “two-hit” hypothesis has traditionally been proposed, whereby thinly developed bone overlying the superior canal is disrupted by a sudden change in intracranial pressure. Although the symptoms of SCD may be precipitated by head injury, no previous reports have described a temporal bone fracture directly causing SCD. Observations. Two patients sustained temporal bone fractures after closed head trauma, and developed unilateral otologic symptoms consistent with SCD. In each instance, computed tomography imaging revealed fractures extending through the bony roof of the superior semicircular canal. Conclusions and Relevance. Temporal bone fractures, which are largely treated nonoperatively, have not previously been reported to cause SCD. As it is a potentially treatable entity, SCD resulting from temporal bone fracture must be recognized as a possibility and diagnosed promptly if present.

  1. Neurocognitive decrements are present in intellectually superior schizophrenia

    Directory of Open Access Journals (Sweden)

    AnjaVaskinn

    2014-05-01

    Full Text Available Data suggests that individuals with schizophrenia (SZ and superior intelligence can present without specific neurocognitive deficits. However, neurocognitive decrements, defined as worse cognition than expected, have been reported in practically all schizophrenia cases. This study investigated if neurocognitive decrements are present in intellectually superior SZ by comparing the neuropsychological profile of SZ cases with IQ-matched healthy controls (HC across intellectual level. Participants with SZ and HCs were stratified into three IQ-groups; intellectually low (IQ 80-95; SZ n = 65 & HC n = 13, intellectually normal (IQ = 100-115; SZ n = 111 & HC n = 115 and intellectually superior (IQ > 120; SZ n = 20 & HC n = 50. A repeated measures multivariate analysis of co-variance compared performance on eight selected neuropsychological tests across IQ-strata and diagnostic group. Differences in clinical characteristics and social functioning in SZ across IQ-strata were investigated with multivariate and univariate analyses of variance. Intellectually superior SZ participants scored within normal limits, but had neurocognitive decrements compared to superior HCs. Decrements were of the same magnitude as in the low and normal IQ-strata. Levels of functional impairments and clinical characteristics in participants with SZ did not differ significantly across IQ-strata. Results indicate that neurocognitive decrements are present in intellectually superior SZ to the same extent as in intellectually low and intellectually normal SZ, supporting the notion that SZ is a neurocognitive disorder. Similar levels of social functional deficits and clinical symptoms suggest similar disease processes in SZ across intellectual level.

  2. Modelos de ensino superior militar de Portugal e Espanha

    OpenAIRE

    Barreira, João, 1964-

    2013-01-01

    Sabemos que nos últimos 30 anos o Ensino Superior Militar (ESM) seguiu um percurso de convergência com o sistema de ensino superior nacional e, mais tarde, no sentido da acreditação internacional, seguindo as diretivas e critérios estabelecidos pelo processo de Bolonha. Por sua vez, Espanha também optou por seguir os critérios estabelecidos pelo processo de Bolonha, mas num caminho diferente do escolhido por Portugal. É neste sentido que o presente estudo visa analisar a exequibilidade de ...

  3. Ruptured superior gluteal artery pseudoaneurysm with hemorrhagic shock: Case report.

    Science.gov (United States)

    Corbacioglu, Kerem Seref; Aksel, Gokhan; Yildiz, Altan

    2016-03-01

    Pseudoaneurysm of the superior gluteal artery (SGA) is very rare and the most common causes are blunt or penetrating pelvic traumas. Although pseudoaneurysm can be asymptomatic at the time of initial trauma, it can be symptomatic weeks, months, even years after initial trauma. We present a case of a ruptured superior gluteal artery pseudoaneurysm with hemorrhagic shock twenty days after a bomb injury in the Syria civil war. In addition, we review the anatomy of the SGA, clinical presentation and pitfalls of pseudoaneurysm, and imaging and treatment options. PMID:27239635

  4. Designing Pareto-superior demand-response rate options

    International Nuclear Information System (INIS)

    We explore three voluntary service options-real-time pricing, time-of-use pricing, and curtailable/interruptible service-that a local distribution company might offer its customers in order to encourage them to alter their electricity usage in response to changes in the electricity-spot-market price. These options are simple and practical, and make minimal information demands. We show that each of the options is Pareto-superior ex ante, in that it benefits both the participants and the company offering it, while not affecting the non-participants. The options are shown to be Pareto-superior ex post as well, except under certain exceptional circumstances. (author)

  5. Paracardioscopic Ex-Maze

    Medline Plus

    Full Text Available ... device, going through the right chest, through the transfer sinus, behind the superior vena cava, and be ... chest, behind the superior vena cava, through the transfer sinus, behind the left atrial appendage, and in ...

  6. O MARKETING NO ENSINO SUPERIOR: COMPARATIVO BRASIL-PORTUGAL

    Directory of Open Access Journals (Sweden)

    Helena Alves

    2010-12-01

    Full Text Available Ao abordar o marketing aplicado ao ensino superior, este estudo tem como objetivos discutir os conceitos teóricos do marketing educacional e aplicálos aos contextos brasileiro e português. Tendo em consideração que o marketing educacional tem a sua maior expressão nos E.U.A., a sua aplicação a diferentes realidades e culturas requer adaptações. Inicialmente, fez-se uma revisão dos conceitos tradicionais de marketing educacional, com ênfase nas vantagens, desvantagens e no marketing-mix aplicado à educação. Posteriormente realizou-se uma caraterização dos contextos atuais do ensino superior no Brasil e em Portugal, e fez-se uma comparação da aplicação do marketing educacional nas realidades brasileira e portuguesa, focando as análises no marketing-mix educacional. Percebeu-se que o ensino superior no Brasil tem caraterísticas muito diversas do ensino superior em Portugal e ambos divergem na aplicação dos conceitos mais tradicionais do marketing à educação. Desta forma, faz-se necessária a construção de abordagens teóricas específicas para a aplicação do marketing educacional a diferentes nações.

  7. Why Is Visual Search Superior in Autism Spectrum Disorder?

    Science.gov (United States)

    Joseph, Robert M.; Keehn, Brandon; Connolly, Christine; Wolfe, Jeremy M.; Horowitz, Todd S.

    2009-01-01

    This study investigated the possibility that enhanced memory for rejected distractor locations underlies the superior visual search skills exhibited by individuals with autism spectrum disorder (ASD). We compared the performance of 21 children with ASD and 21 age- and IQ-matched typically developing (TD) children in a standard static search task…

  8. Pushing the Limits: Achieving Superior Arabic Fluency in America

    Science.gov (United States)

    Beaty, Kevin James

    2008-01-01

    This study investigates the current situation of Arabic education in the United States with an overarching question of, "What is the best way for a student of Arabic in the United States to achieve Superior proficiency?" This study focuses on two elite institutions of Arabic education in the United States. This study is based on 3 sources of…

  9. Cationic amphiphilic non-hemolytic polyacrylates with superior antibacterial activity.

    Science.gov (United States)

    Punia, Ashish; He, Edward; Lee, Kevin; Banerjee, Probal; Yang, Nan-Loh

    2014-07-01

    Acrylic copolymers with appropriate compositions of counits having cationic charge with 2-carbon and 6-carbon spacer arms can show superior antibacterial activities with concomitant very low hemolytic effect. These amphiphilic copolymers represent one of the most promising synthetic polymer antibacterial systems reported. PMID:24854366

  10. Protein tyrosine phosphatases expression during development of mouse superior colliculus.

    Science.gov (United States)

    Reinhard, Jacqueline; Horvat-Bröcker, Andrea; Illes, Sebastian; Zaremba, Angelika; Knyazev, Piotr; Ullrich, Axel; Faissner, Andreas

    2009-12-01

    Protein tyrosine phosphatases (PTPs) are key regulators of different processes during development of the central nervous system. However, expression patterns and potential roles of PTPs in the developing superior colliculus remain poorly investigated. In this study, a degenerate primer-based reverse transcription-polymerase chain reaction (RT-PCR) approach was used to isolate seven different intracellular PTPs and nine different receptor-type PTPs (RPTPs) from embryonic E15 mouse superior colliculus. Subsequently, the expression patterns of 11 PTPs (TC-PTP, PTP1C, PTP1D, PTP-MEG2, PTP-PEST, RPTPJ, RPTPε, RPTPRR, RPTPσ, RPTPκ and RPTPγ) were further analyzed in detail in superior colliculus from embryonic E13 to postnatal P20 stages by quantitative real-time RT-PCR, Western blotting and immunohistochemistry. Each of the 11 PTPs exhibits distinct spatiotemporal regulation of mRNAs and proteins in the developing superior colliculus suggesting their versatile roles in genesis of neuronal and glial cells and retinocollicular topographic mapping. At E13, additional double-immunohistochemical analysis revealed the expression of PTPs in collicular nestin-positive neural progenitor cells and RC-2-immunoreactive radial glia cells, indicating the potential functional importance of PTPs in neurogenesis and gliogenesis. PMID:19727691

  11. Ileocolic Arteriovenous Fistula with Superior Mesenteric Vein Aneurism: Endovascular Treatment

    International Nuclear Information System (INIS)

    We report a case of a venous aneurysm secondary to an acquired ileocolic arteriovenous fistula in a 64-year-old woman with recurrent abdominal pain and history of appendectomy. The aneurysm was diagnosed by ultrasound and computed tomography. Angiography showed an arteriovenous fistula between ileocolic branches of the superior mesenteric artery and vein. This vascular abnormality was successfully treated with coil embolization

  12. The Quagga mussel invades the Lake Superior basin - journal article

    Science.gov (United States)

    Prior studies recognized the presence of a single dreissenid species in Lake Superior--the zebra mussel Dreissena polymorpha. However, taxonomic keys based on traditional shell morphology are not always able to differentiate dreissenid species with confidence. We thus employed ge...

  13. Prof. Zhou Xuewen's Experience in Treating Superior Mesenteric Artery Syndrome

    Institute of Scientific and Technical Information of China (English)

    姚岚

    2003-01-01

    @@ Prof. Zhou Xuewen (周学文), a veteran TCM doctor,is an expert in treating miscellaneous internaldiseases. I have the honor to follow him and havebenefited from his teaching. The following is hisexperience in treating superior mesenteric arterysyndrome that I would like to introduce below.

  14. Superiority of Vicarious over Direct Experience in Interpersonal Conflict Resolution

    Science.gov (United States)

    Braver, Sanford L.; Rohrer, Van

    1978-01-01

    A laboratory experiment compared the relative effects of observing and participating in a first Prisoner's Dilemma Game (PDG) on subsequent PDG encounters by the original observer and participant. Concludes that vicarious experience is superior to direct experience in producing responses that reduce interpersonal conflict. Available from: Sage…

  15. Exchange Between Superiors and Subordinates in Large Organizations

    Science.gov (United States)

    Marcus, Philip M.; House, James S.

    1973-01-01

    Social exchange theory is used to formulate hypotheses about superior-subordinate relations in large complex organizations. Data from self-administered questionnaires are used to support the hypotheses derived from the theoretical model and suggest the utility of further research using social exchange theory. (Author)

  16. Superior refining performance beyond 2000 -- Breaking traditional paradigms

    International Nuclear Information System (INIS)

    Over the last 5 years, refining companies have not performed well financially, generating returns below the cost of capital. Environmental regulations have caused the industry to invest significant amounts of capital, and while new regulations will cause the shutdown of between 500 thousand and 1.2 million barrels per day of capacity, the industry structure will remain poor and financial returns for the average player will likely be volatile, cyclical, and below the cost of capital. Based on this industry outlook, refining companies seeking superior performance will have to break the traditional paradigms and adopt world-class practices used in other industries. Changes required to significantly improve financial returns will include shifts in business strategy to accommodate growth, and development of nontraditional services, as well as initiates to dramatically reshape cost structure and improve profitability. Making the changes to become a superior performer in the refining business will require a clear vision and strong leadership at multiple levels in the organization. The transformation will also require changes in company culture and incentive plans that encourage managers to act as owners. In addition, superior performers will push accountability for results to low levels in the organization. Given the herd mentality of the oil industry, superior performers must take decisive, preemptive action to generate a substantial, competitive advantage

  17. Effect of utilization of veno-venous bypass vs. cardiopulmonary bypass on complications for high level inferior vena cava tumor thrombectomy and concomitant radical nephrectomy

    Directory of Open Access Journals (Sweden)

    Ross M. Simon

    2015-10-01

    Full Text Available ABSTRACT Purpose: To determine if patients with renal cell carcinoma (RCC with levels III and IV tumor thrombi are receive any reduction in complication rate utilizing veno-venous bypass (VVB over cardiopulmonary bypass (CPB for high level (III/IV inferior vena cava (IVC tumor thrombectomy and concomitant radical nephrectomy. Materials and Methods: From May 1990 to August 2011, we reviewed 21 patients that had been treated for RCC with radical nephrectomy and concomitant IVC thrombectomy employing either CPB (n =16 or VVB (n=5. We retrospectively reviewed our study population for complication rates and perioperative characteristics. Results: Our results are reported using the validated Dindo-Clavien Classification system comparing the VVB and CPB cohorts. No significant difference was noted in minor complication rate (60.0% versus 68.7%, P=1.0, major complication rate (40.0% versus 31.3%, P=1.0, or overall complication rate (60.0% versus 62.5%, P=1.0 comparing VVB versus CPB. We also demonstrated a trend towards decreased time on bypass (P=0.09 in the VVB cohort. Conclusion: The use of VVB over CPB provides no decrease in minor, major, or overall complication rate. The use of VVB however, can be employed on an individualized basis with final decision on vascular bypass selection left to the discretion of the surgeon based on specifics of the individual case.

  18. 下腔静脉癌栓的诊治进展%Advancements in Diagnosis and Treatment of Inferior Vena Cava Tumor Thrombus

    Institute of Scientific and Technical Information of China (English)

    郝嘉; 游凯

    2011-01-01

    下腔静脉癌栓常在恶性肿瘤中伴发,治疗上仍较棘手.目前如何选择适宜的诊治方法和它对肿瘤预后的影响尚未达成共识.现系统回顾下腔静脉癌栓的分型、诊断、围术期的综合治疗方法和预后方面的进展,重点综述外科治疗下腔静脉癌栓的各种辅助方法、手术切口和术后联合治疗方式.%Inferior vena cava tumor thrombus ( IVCTT) is one of the factors resulting in a poor prognosis for patients with carcmoma.The classification, improvement of diagnosis, comprehensive treatments, and overall suwival of IVCTT were analyzed. The review focuses on multiple surpcal methods, incision access, and combined postoperative therapies.

  19. Diagnosis of an infected central venous catheter with ultrasound and computed tomography; Diagnose eines infizierten Thrombus der Vena cava inferior mit Sonographie und Computertomographie

    Energy Technology Data Exchange (ETDEWEB)

    Tacke, J. [RWTH Aachen (Germany). Klinik fuer Radiologische Diagnostik; Adam, G. [RWTH Aachen (Germany). Klinik fuer Radiologische Diagnostik; Sliwka, U. [RWTH Aachen (Germany). Neurologische Klinik; Klosterhalfen, B. [RWTH Aachen (Germany). Inst. fuer Pathologie; Schoendube, F. [RWTH Aachen (Germany). Klinik fuer Thorax- Herz- und Gefaesschirurgie

    1995-08-01

    The authors report the case of a 16-year-old male patient, who suffered from meningitis and Waterhouse-Friderichsen syndrome. After initial improvement in the intensive care unit, he developed septic temperatures, caused by an infected thrombus of a central venous catheter in the inferior vena cava, Color-coded ultrasound showed hyperechogenic signals and missing flow detection at the catheter tip. Computed tomography showed air bubbles in the thrombosed catheter tip and confirmed the diagnosis. Vasuclar surgery was done and an infected, 17-cm-long infected thrombus was removed. (orig./VHE) [Deutsch] Die Autoren berichten ueber den Fall eines 16jaehrigen Patienten, dem wegen einer Meningitis und der Zeichen eines Waterhouse-Friderichsen-Syndroms ein femoralvenoeser Zentralkatheter gelegt wurde. Nach initialer Entfieberung entwickelte sich eine Sepsis, deren Ursache in einem infizierten Thrombus des Zentralvenenkatheters lag. Die Diagnose wurde sonographisch gestellt und nachfolgend computertomographisch bestaetigt. In beiden Verfahren wiesen Lufteinschluesse im Katheterthrombus auf die Injektion hin. Der Befund wurde durch eine gefaesschirurgische Thrombektomie bestaetigt und therapiert. (orig./VHE)

  20. Measurement of Anterior-Posterior Diameter of Inferior Vena Cava by Ultrasonography: A Non-Invasive Method for Estimation of Central Venous Pressure

    Directory of Open Access Journals (Sweden)

    R. Nafisi-Moghadam

    2007-05-01

    Full Text Available Background and Objective: The assessment of blood volume is now one of the most commonly needed interventions in the first line of care and severe ill patients. Measuring central venous pressure (CVP is an invasive method, most frequently used in clinical practice for the assessment of volume status. The di-ameter of the inferior vena cava (IVC is a parameter to estimate central venous pressure. The purpose of this study was to determine whether measurement of the anterior-posterior diameter of the IVC by ultra-sonography, correlates with CVP. Materials and Methods: It was a descriptive and pro-spective study on 50 patients; CVP was measured in supine position by CVP manometer. Anterior – pos-terior IVC diameter was assessed by ultrasonography during inspiration and expiration. Results: The mean of CVP during inspiration and ex-piration was 11.31+5.59, 12.20 + 5.65cmH2o, respec-tively. The mean of inspiratory and expiratory IVC diameter was 7.71+3.56, 11.97+3.28 mm, respectively. There was significant relation between CVP and IVC diameter in the inspiration (r=0.664, p<0.0001 and expiration (r=0.495, p=0.001. The relation between these two variables was linear. Conclusion: Result of this study showed that IVC di-ameter measurement by ultrasonography can be used to estimate the mean of CVP.

  1. Contrast-fluid level in the inferior vena cava (IVC niveau sign) in patients with acute type A aortic dissection. Computed tomography findings during acute cardiac tamponade

    International Nuclear Information System (INIS)

    The purpose of this study was to report a new computed tomography (CT) finding in acute cardiac tamponade: a contrast-fluid level in the hepatic inferior vena cava (IVC) during an arterial dominant phase CT study (IVC niveau sign) in patients with acute type A aortic dissection. We retrospectively reviewed CT studies with the diagnosis of proximal aortic dissection (Stanford type A) with acute cardiac tamponade. There were 12 patients enrolled in the study (6 women, 6 men; mean age 66 years). A total of 62 patients were selected as a control chronic pericardial effusion group to compare with the acute cardiac tamponade group. Among the 12 patients with acute cardiac tamponade, the IVC niveau sign was seen in 7 (58%). In the control chronic pericardial effusion group (n=62), we identified the IVC niveau sign in only one patient (1.6%). There was a significant difference in the presence of the IVC niveau sign between the acute cardiac tamponade and chronic pericardial effusion groups (P<0.0001). The presence of the IVC niveau sign suggests acute cardiac tamponade in patients with acute type A aortic dissection. (author)

  2. Thrombolysis for treating deep venous thrombosis by high-dose urokinase: the usefulness of preventive placement of inferior vena cava filter

    International Nuclear Information System (INIS)

    Objective: To investigate the feasibility and efficacy of high-dose urokinase thrombolysis for treating lower limb deep venous thrombosis (DVT) after inferior vena cava (IVC) filter placement. Methods: Thirteen patients of venographically proved DVT underwent preventive IVC filter placement for thrombolysis by high-dose urokinase. Antegrade infusion of high-dose urokinase was performed via the dorsalis pedis vein of the involved lower limb. The total dose of urokinase was 9 000 000 ∼ 16 000 000 units, and the procedure of thrombolysis was performed in ICU ward where the patients were closely monitored clinically and laboratorially. Results: A total of 13 IVC filters were successfully deployed without disposition and migration. The therapeutic effects were divided into four scales as follows: complete disappearance of the venous thrombosis and clinically asymptomatic (n = 2); remarkable recovery characterized by markedly improved clinical symptoms and venographically proved patent lumen in which the diameter was larger than 70% (n = 9); effective treatment indicating improved symptoms to some degrees and venographically proved patent lumen in which the diameter was smaller than 70% ( n = 2); and ineffective treatment (n = 0). No pulmonary embolism and hemorrhage occurred during the procedure of thrombolysis. Conclusion: High-dose urokinase for treating DVT is safe and effective after preventive placement of IVC filter

  3. Superior semicircular canal dehiscence in relation to the superior petrosal sinus: a potential cause of pulsatile tinnitus

    International Nuclear Information System (INIS)

    Aim: To examine the association between superior semicircular canal dehiscence (SSCD) and pulsatile tinnitus (PT). Materials and methods: Two SSCD groups included 408 unilateral persistent PT patients, and 511 controls undergoing head and neck dual-phase contrast-enhanced computed tomography (DP-CECT) for reasons other than PT. The prevalence of type I (no the superior petrosal sinus running through the dehiscence) and type II (superior semicircular canal dehiscence in relation to the superior petrosal sinus) SSCD was analysed using chi-square test. Results: SSCD was identified in 5.1% (21/408) of PT ears, significantly different from 2% (8/408) of non-PT ears and 0.7% (7/1022) of controls. There was no significant difference in SSCD prevalence between non-PT ears in the PT group and controls. In the PT group, 15/21 ears were type II SSCD; 6/21 ears were type I. Fifteen combined non-PT and control ears with SSCD included two type II and 13 type I SSCD. The prevalence of type II SSCD in PT ears was significantly higher than that of non-PT ears in both groups, and the prevalence of type I SSCD in PT ears was similar to that of non-PT ears in both groups. Conclusion: Compared with type I SSCD, there may be a causal relationship between type II SSCD and PT. -- Highlights: •The prevalence of type II SSCD in PT ears was significantly higher than that in non-PT ears in both the PT group and controls. •The prevalence of type I SSCD was similar among the PT ears and non-PT ears. •The superior petrosal sinus running through the dehiscence may be essential for SSCD to induce PT. •Venous phase CT images with bone window settings is the modality method to differentiate type II from type I SSCD

  4. Total variation superiorization schemes in proton computed tomography image reconstruction

    CERN Document Server

    Penfold, S N; Censor, Y; Rosenfeld, A B

    2010-01-01

    Purpose: Iterative projection reconstruction algorithms are currently the preferred reconstruction method in proton computed tomography (pCT). However, due to inconsistencies in the measured data arising from proton energy straggling and multiple Coulomb scattering, noise in the reconstructed image increases with successive iterations. In the current work, we investigated the use of total variation superiorization (TVS) schemes that can be applied as an algorithmic add-on to perturbation-resilient iterative projection algorithms for pCT image reconstruction. Methods: The block-iterative diagonally relaxed orthogonal projections (DROP) algorithm was used for reconstructing Geant4 Monte Carlo simulated pCT data sets. Two TVS schemes added on to DROP were investigated; the first carried out the superiorization steps once per cycle and the second once per block. Simplifications of these schemes, involving the elimination of the computationally expensive feasibility proximity checking step of the TVS framework, we...

  5. Superior gluteal nerve entrapment between two bellies of piriformis muscle

    Directory of Open Access Journals (Sweden)

    Yadav Y

    2010-12-01

    Full Text Available A double belly composition of piriformis muscle with superior gluteal nerve entrapment between the two muscle masses was detected. Piriformis muscle and its relation to sciatic nerve has been suggested as a cause of piriformis syndrome. Patients suffering from buttock pain are most often diagnosed as having piriformis syndrome, where anatomical variation of the piriformis is an important contributor. The present variation showed two distinct bellies of piriformis muscle. Interestingly the superior gluteal nerve was interposed between the two bellies. Such incidental findings on cadavers may help the clinicians to establish a rare yet important cause of piriformis syndrome. Furthermore, such observations are also relevant to the radiologists while interpreting MRI scans in cases of undiagnosed chronic gluteal pain.

  6. Endoscopia digestiva superior en pediatría.

    Directory of Open Access Journals (Sweden)

    Lucy S. Flóres

    2009-11-01

    Full Text Available La endoscopia digestiva superior (EDS es una técnica eficaz, segura, con riesgos y complicaciones mínimos para la exploración en niños del tracto digestivo superior que permite la evaluación, diagnóstico y manejo terapéutico adecuados en la enfermedad gastrointestinal. A pesar de los consensos sobre sus indicaciones, hay pocos estudios controlados sobre los efectos y las técnicas terapéuticas en pediatría. Para facilitar el procedimiento se recomienda usar sedación o anestesia. Puede haber complicaciones cardiopulmonares, infecciosas, perforación, hemorragia y las derivadas de la sedación. En resumen, la esofagogastroduodenoscopia permite el diagnóstico, seguimiento y tratamiento adecuado en la enfermedad gastrointestinal.

  7. La educación superior como eje del desarrollo

    OpenAIRE

    Benjamín Afanador Vargas; Rodolfo Cano Blandón; Fernando Copete Saldarriaga; Jairo Isaza Castro; Nohra León Rodríguez

    2003-01-01

    Este documento analiza cómo ha sido la interacción entre la política educativa y las estrategiasde desarrollo en Colombia, a lo largo del siglo XX. Se presenta una revisión del estadoactual de la educación en Colombia, tanto a nivel de educación básica y media, como de laeducación superior. Para ello se toman tres criterios básicos que son la cobertura, la calidady la equidad en el acceso a la educación. Para el caso de la educación superior, se comparala oferta de cupos con la demanda existe...

  8. Superior mesenteric vein rotation: a CT sign of midgut malrotation

    Energy Technology Data Exchange (ETDEWEB)

    Nichols, D.M. (Vancouver General Hospital, Canada); Li, D.K.

    1983-10-01

    Computed tomography (CT) of the pancreas, with its excellent display of peripancreatic anatomy, allows visualization of the major vessels entering the mesenteric root. In scans of the normal upper abdomen obtained at or just below the level of the uncinate process of the pancreas, the proximal superior mesenteric vein (SMV) easily can be identified lying on the right ventral aspect of the superior mesenteric artery (SMA). The authors have observed a characteristic abnormality in this normal vascular arrangement on CT scans of the pancreas in three adult patients with suspected chronic pancreatitis who were subsequently proved to have midgut malrotation. They called this the SMV rotation sign and believe that its detection even on CT scans limited to the level of the pancreas should alert the radiologist to the presence of a midgut malrotation that may have been unsuspected.

  9. Neural underpinnings of superior action prediction abilities in soccer players

    OpenAIRE

    Makris, Stergios; Urgesi, Cosimo

    2014-01-01

    The ability to form anticipatory representations of ongoing actions is crucial for effective interactions in dynamic environments. In sports, elite athletes exhibit greater ability than novices in predicting other players’ actions, mainly based on reading their body kinematics. This superior perceptual ability has been associated with a modulation of visual and motor areas by visual and motor expertise. Here, we investigated the causative role of visual and motor action representations in exp...

  10. What else is hiding behind superior mesenteric artery syndrome?

    Science.gov (United States)

    De Angelis, Paola; Iacobelli, Barbara Daniela; Torroni, Filippo; Dall'Oglio, Luigi; Bagolan, Pietro; Fusaro, Fabio

    2015-01-01

    The superior mesenteric artery syndrome (SMAS) is an uncommon condition in children. We describe a case of a 7-year-old boy with SMAS that occurred 3 years after a Deloyers' procedure for subtotal colonic Hirschsprung who was admitted for bilious vomit, abdominal pain and diarrhea due to unrecognized celiac disease. This case emphasize that SMAS in children needs a close medical and surgical follow-up to avoid an underestimation of early clinical signs unrelated to surgery. PMID:25972411

  11. Erhalt der Arteria rectalis superior in der Divertikulitis-Chirurgie

    OpenAIRE

    Schachtebeck, Michael

    2016-01-01

    Background: Preservation of the superior rectal artery (SRA) in sigmoid resection continues to be a matter of debate. The practical relevance of preserving the SRA has not been thoroughly investigated and randomized controlled trials are largely missing. In tubular sigmoid resection the SRA is preserved. The artery can be preserved in anterior resection, too. Vascular supply to bowel anastomosis has been determined as an important factor for postoperative healing. This thesis investigates the...

  12. False memories in highly superior autobiographical memory individuals

    OpenAIRE

    Patihis, Lawrence; Frenda, Steven J.; LePort, Aurora K. R.; Petersen, Nicole; Nichols, Rebecca M.; Stark, Craig E.L.; McGaugh, James L.; Loftus, Elizabeth F

    2013-01-01

    In a unique memory-distortion study with people with extraordinary memory ability, individuals with highly superior autobiographical memory (HSAM) were as susceptible as controls to false memory. The findings suggest that HSAM individuals reconstruct their memories using associative grouping, as demonstrated by a word-list task, and by incorporating postevent information, as shown in misinformation tasks. The findings also suggest that the reconstructive memory mechanisms that produce memory ...

  13. Superior Mesenteric Artery Syndrome: An Infrequent Complication of Scoliosis Surgery

    OpenAIRE

    Metin Keskin; Turgut Akgül; Adem Bayraktar; Fatih Dikici; Emre Balık

    2014-01-01

    Case Report Superior Mesenteric Artery Syndrome: An Infrequent Complication of Scoliosis Surgery Metin Keskin,1 Turgut Akgül,2 Adem Bayraktar,1 Fatih Dikici,2 and Emre BalJk3 1 General Surgery Department, Istanbul Faculty of Medicine, Istanbul University, Capa, Millet Caddesi, 34093 Istanbul, Turkey 2Orthopedic Department, Istanbul Faculty of Medicine, Istanbul University, Capa, Millet Caddesi, 34093 Istanbul, Turkey 3 General Surgery Department, School of Medicine, Koc¸ Uni...

  14. Organizational self-awareness is the key to knowledge superiority

    OpenAIRE

    Rivera, Ricardo

    2015-01-01

    Approved for public release; distribution is unlimited This thesis proposes an integrated approach to develop and evaluate knowledge management systems and methodologies that deliver sustainable competitive advantages through knowledge superiority. Integration revolves around internal, structural factors that the organization can manipulate to achieve its strategic goals. The fundamental concept behind the research is that an organization’s self-awareness allows leaders to select the best ...

  15. Anger superiority effect: The importance of dynamic emotional facial expressions

    OpenAIRE

    F.Ceccarini; C.Caudek

    2013-01-01

    A rapid response to a threatening face in a crowd is important to successfully interact in social environments. Visual search tasks have been employed to determine whether there is a processing advantage for detecting an angry face in a crowd, compared to a happy face. The empirical findings supporting the anger superiority effect (ASE), however, have been criticized on the basis of possible low-level visual confounds and because of the limited ecological validity of the stimuli. Moreover, a ...

  16. Does superior firm performance lead to higher quality outside directorships?

    OpenAIRE

    Aditi Gupta; David Otley; Steven Young

    2008-01-01

    Purpose – Holding the number of outside directorships constant, this paper aims to test whether executive directors from superior performing firms are subsequently rewarded with better quality outside directorships. Design/methodology/approach – The quality of new outside directorship appointments is modelled using a two-step Heckman selection procedure to control for the probability of acquiring a new outside board seat. Outside directorship quality is estimated using an index formed from se...

  17. CETSI: uma proposta para um novo paradigma de ensino superior

    OpenAIRE

    Gomes Pires, José A.; Francisco José GARCÍA-PEÑALVO; Martins do Amaral, Luis Alfredo; Pérez Iglesias, José Luis

    2005-01-01

    The courses of technologic specialization play a important role in the new paradigm of education learning, that is desired to be more flexible and adjusted to the demands of highly selective professional environment. To fit the concept of formation throughout life, in the context of the reforms proposed in the scope of the declaration of Bologna that considers the construction of a uniform space of superior education, constitutes a challenge for the universities and polytechnics of Portugal...

  18. CURRENT COLLOIDAL DISPERSION GELS ARE NOT SUPERIOR TO POLYMER FLOODING

    Institute of Scientific and Technical Information of China (English)

    Seright Randy; Han Peihui; Wang Dongmei

    2006-01-01

    The suggestion that the colloidal-dispersion-gel (CDG) process is superior to normal polymer flooding is misleading and generally incorrect. Colloidal dispersion gels, in their present state of technological development, should not be advocated as an improvement to, or substitute for, polymer flooding. Gels made from aluminum-citrate crosslinked polyacrylamides can act as conventional gels and provide effective conformance improvement in treating some types of excess water production problems if sound scientific and engineering principles are respected.

  19. Information Superiority generated through proper application of Geoinformatics

    Science.gov (United States)

    Teichmann, F.

    2012-04-01

    Information Superiority generated through proper application of Geoinformatics Information management and especially geoscience information delivery is a very delicate task. If it is carried out successfully, geoscientific data will provide the main foundation of Information Superiority. However, improper implementation of geodata generation, assimilation, distribution or storage will not only waste valuable resources like manpower or money, but could also give rise to crucial deficiency in knowledge and might lead to potentially extremely harmful disasters or wrong decisions. Comprehensive Approach, Effect Based Operations and Network Enabled Capabilities are the current buzz terms in the security regime. However, they also apply to various interdisciplinary tasks like catastrophe relief missions, civil task operations or even in day to day business operations where geo-science data is used. Based on experience in the application of geoscience data for defence applications the following procedure or tool box for generating geodata should lead to the desired information superiority: 1. Understand and analyse the mission, the task and the environment for which the geodata is needed 2. Carry out a Information Exchange Requirement between the user or customer and the geodata provider 3. Implementation of current interoperability standards and a coherent metadata structure 4. Execute innovative data generation, data provision, data assimilation and data storage 5. Apply a cost-effective and reasonable data life cycle 6. Implement IT security by focusing of the three pillar concepts Integrity, Availability and Confidentiality of the critical data 7. Draft and execute a service level agreement or a memorandum of understanding between the involved parties 8. Execute a Continuous Improvement Cycle These ideas from the IT world should be transferred into the geoscience community and applied in a wide set of scenarios. A standardized approach of how to generate, provide

  20. False memories in highly superior autobiographical memory individuals

    OpenAIRE

    Patihis, L; Frenda, SJ; LePort, AKR; Petersen, N.; Nichols, RM; Stark, CEL; McGaugh, JL; Loftus, EF

    2013-01-01

    The recent identification of highly superior autobiographical memory (HSAM) raised the possibility that there may be individuals who are immune to memory distortions. We measured HSAM participants' and age- and sex-matched controls' susceptibility to false memories using several research paradigms. HSAM participants and controls were both susceptible to false recognition of nonpresented critical lure words in an associative word-list task. In a misinformation task, HSAM participants showed hi...

  1. MRI assessment of superior temporal gyrus in Williams syndrome

    OpenAIRE

    Sampaio, Adriana; Sousa, Nuno; Férnandez, Montse; Vasconcelos, Cristiana; Shenton, Martha E.; Gonçalves, Óscar F.

    2008-01-01

    Objective: To evaluate volumes and asymmetry of superior temporal gyrus (STG) and correlate these measures with a neurocognitive evaluation of verbal performance in Williams syndrome (WS) and in a typically developing age-matched and sex-matched group. Background: Despite initial claims of language strength in WS, recent studies suggest delayed language milestones. The STG is implicated in linguistic processing and is a highly lateralized brain region. Method: Here, we examined...

  2. Superior metallic alloys through rapid solidification processing (RSP) by design

    Energy Technology Data Exchange (ETDEWEB)

    Flinn, J.E. [Idaho National Engineering Laboratory, Idaho Falls, ID (United States)

    1995-05-01

    Rapid solidification processing using powder atomization methods and the control of minor elements such as oxygen, nitrogen, and carbon can provide metallic alloys with superior properties and performance compared to conventionally processing alloys. Previous studies on nickel- and iron-base superalloys have provided the baseline information to properly couple RSP with alloy composition, and, therefore, enable alloys to be designed for performance improvements. The RSP approach produces powders, which need to be consolidated into suitable monolithic forms. This normally involves canning, consolidation, and decanning of the powders. Canning/decanning is expensive and raises the fabrication cost significantly above that of conventional, ingot metallurgy production methods. The cost differential can be offset by the superior performance of the RSP metallic alloys. However, without the performance database, it is difficult to convince potential users to adopt the RSP approach. Spray casting of the atomized molten droplets into suitable preforms for subsequent fabrication can be cost competitive with conventional processing. If the fine and stable microstructural features observed for the RSP approach are preserved during spray casing, a cost competitive product can be obtained that has superior properties and performance that cannot be obtained by conventional methods.

  3. Prey selection by the Lake Superior fish community

    Science.gov (United States)

    Isaac, Edmund J.; Hrabik, Thomas R.; Stockwell, Jason D.; Gamble, Allison E.

    2012-01-01

    Mysis diluviana is an important prey item to the Lake Superior fish community as found through a recent diet study. We further evaluated this by relating the quantity of prey found in fish diets to the quantity of prey available to fish, providing insight into feeding behavior and prey preferences. We describe the seasonal prey selection of major fish species collected across 18 stations in Lake Superior in spring, summer, and fall of 2005. Of the major nearshore fish species, bloater (Coregonus hoyi), rainbow smelt (Osmerus mordax), and lake whitefish (Coregonus clupeaformis) consumed Mysis, and strongly selected Mysis over other prey items each season. However, lake whitefish also selected Bythotrephes in the fall when Bythotrephes were numerous. Cisco (Coregonus artedi), a major nearshore and offshore species, fed largely on calanoid copepods, and selected calanoid copepods (spring) and Bythotrephes (summer and fall). Cisco also targeted prey similarly across bathymetric depths. Other major offshore fish species such as kiyi (Coregonus kiyi) and deepwater sculpin (Myoxocephalus thompsoni) fed largely on Mysis, with kiyi targeting Mysis exclusively while deepwater sculpin did not prefer any single prey organism. The major offshore predator siscowet lake trout (Salvelinus namaycush siscowet) consumed deepwater sculpin and coregonines, but selected deepwater sculpin and Mysis each season, with juveniles having a higher selection for Mysis than adults. Our results suggest that Mysis is not only a commonly consumed prey item, but a highly preferred prey item for pelagic, benthic, and piscivorous fishes in nearshore and offshore waters of Lake Superior.

  4. Controlled movement processing: superior colliculus activity associated with countermanded saccades.

    Science.gov (United States)

    Paré, Martin; Hanes, Doug P

    2003-07-23

    We investigated whether the monkey superior colliculus (SC), an important midbrain structure for the regulation of saccadic eye movements, contains neurons with activity patterns sufficient to control both the cancellation and the production of saccades. We used a countermanding task to manipulate the probability that, after the presentation of a stop signal, the monkeys canceled a saccade that was planned in response to an eccentric visual stimulus. By modeling each animal's behavioral responses, with a race between GO and STOP processes leading up to either saccade initiation or cancellation, we estimated that saccade cancellation took on average 110 msec. Neurons recorded in the superior colliculus intermediate layers during this task exhibited the discharge properties expected from neurons closely involved in behavioral control. Both saccade- and fixation-related discharged differently when saccades were counter-manded instead of executed, and the time at which they changed their activity preceded the behavioral estimate of saccade cancellation obtained from the same trials by 10 and 13 msec, respectively. Furthermore, these intervals exceed the minimal amount of time needed for SC activity to influence eye movements. The additional observation that saccade-related neurons discharged significantly less when saccades were countermanded instead of executed suggests that saccades are triggered when these neurons reach a critical activation level. Altogether, these findings provide solid evidence that the superior colliculus contains the necessary neural signals to be directly involved in the decision process that regulates whether a saccade is to be produced. PMID:12878689

  5. Cooperation between ligninolytic enzymes produced by superior mixed flora

    Institute of Scientific and Technical Information of China (English)

    WANG Hai-lei; LI Zong-yi; GUO Wei-yun; WANG Zhen-yu; PAN Feng

    2005-01-01

    Since the ability to degrade lignin with one kind of white-rot fungi or bacteria was very limited, superior mixed flora's ability to degrade lignin was investigated by an orthogonal experiment in this paper. The results showed that superior mixed flora reinforced the ability to degrade lignin, the degradation rates of both sample 9 and 10 were beyond 80% on the day 9. The cooperation between lignin peroxidase(LiP), Mn-dependent peroxidase(MnP) and laccase (Lac) for lignin degradation was also studied. By examining the activities of three enzymes produced by superior mixed flora, it was found that Lac was a key enzyme in the process of biological degradation of lignin but Lip was not; the enzyme activity ratios of Lac/MnP and Lac/LiP were significantly correlative with the degradation rate of lignin at the 0.01 level; and the ratio of MnP/LiP was an important factor affecting the degradation rate of lignin.

  6. Stomatitis sub-prosthesis in patients with superior dental prosthesis

    Directory of Open Access Journals (Sweden)

    Antonia Martina Francisco Local

    2009-04-01

    Full Text Available Background: The stomatitis sub-prosthesis is one of the most frequent changes in hard palate mucous membrane in patients with mucous-supported dental prosthesis. It can be caused by multiple factors, which makes its study and prognosis more difficult. Objective: To describe the occurrence of stomatitis sub-prosthesis and its causes in patients with superior dental prosthesis. Method: Descriptive study including all the patients with superior dental prosthesis examined in the odontology consultation “Barrio Adentro” in the state of Miranda, Venezuela, from November, 2005 to March, 2006. The analysed variables were: age, sex, stomatitis level, teeth brushing frequency, prosthesis condition and use, palate mucous condition and frequency of odontology consultations. Results: 89 patients were attended, more 50% of them had superior dental prosthesis and presented stomatitis sub-prosthesis; the group between 35 and 59 years was the most affected, mainly females. Sub-prosthesis stomatitis type II was the most common and the main causes included constant use of the prosthesis and loose prosthesis. Buccal hygiene was not adequate in these patients. Most of them declared never attending to the dentist, or just when presenting some particular problem. Conclusion: Stomatitis prevalence was related with incorrect hygiene habits and lack of knowledge; it shows the importance of performing educative tasks to reduce this disease incidence.  

  7. Lesão da artéria ilíaca esquerda durante laminectomia lombar: relato de caso Lesión de la arteria ilíaca izquierda durante laminectomia lombar: relato de caso Left iliac artery injury during lumbar laminectomy: case report

    Directory of Open Access Journals (Sweden)

    Wanderley Rodrigues Moreira

    2003-08-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: Lesão da artéria ilíaca é uma ocorrência rara em laminectomias, porém, muito grave. O objetivo deste relato é apresentar um caso de lesão da artéria ilíaca esquerda, em paciente submetido a laminectomia lombar sob raquianestesia, que se manifestou clinicamente no pós-operatório imediato, sete horas após o início da cirurgia. RELATO DO CASO: Paciente do sexo masculino, estado físico ASA I, 31 anos, 68 kg, foi submetido à laminectomia lombar em decúbito ventral sob raquianestesia em L2-L3, com bupivacaína hiperbárica a 0,5% (20 mg e fentanil 25 µg. A cirurgia transcorreu normalmente e sete horas após o seu início, já no pós-operatório, o paciente apresentou hipotensão arterial, taquicardia, agitação e dor abdominal difusa. A tomografia abdominal mostrou aspecto compatível com hematoma retroperitoneal e a laparotomia exploradora revelou lesão da artéria ilíaca comum esquerda. Após a laparotomia, o paciente evoluiu bem. CONCLUSÕES: Na dependência do posicionamento e do estado físico, técnicas de anestesia geral se impõem. O caso chama atenção para o fato de que qualquer técnica anestésica que tenha sido realizada, o sangramento no campo operatório pode não ser real, na vigência de uma lesão vascular, porque este sangramento pode ser tardio. No presente caso, a manifestação clínica ocorreu sete horas após o início da cirurgia, quando o paciente já estava recuperado da anestesia. No entanto, o fenômeno (hipotensão arterial poderia ter ocorrido no per-operatório.JUSTIFICATIVA Y OBJETIVOS: Lesión de la arteria ilíaca es una ocurrencia rara en laminectomias, no obstante, muy grave. El objetivo de este relato es presentar un caso de lesión de la arteria ilíaca izquierda, en paciente sometido a laminectomia lombar sobre raquianestesia, que se manifestó clínicamente en el pós-operatorio inmediato, siete horas después del inicio de la cirugía. RELATO DEL CASO: Paciente

  8. Correlação entre os índices dopplervelocimétricos da veia cava inferior e ducto venoso e a concentração de hemoglobina do cordão em fetos de gestantes isoimunizadas

    Directory of Open Access Journals (Sweden)

    Taveira Marcos Roberto

    2003-01-01

    Full Text Available OBJETIVO: o objetivo principal desse estudo foi verificar se existe correlação entre os índices dopplervelocimétricos da veia cava inferior e do ducto venoso e a concentração sérica da hemoglobina fetal. MÉTODOS: estudo transversal e prospectivo, realizado entre janeiro de 1998 e junho de 2001. Foram acompanhadas 31 gestantes isoimunizadas com resultado do teste de Coombs indireto maior que 1:8, que foram submetidas à pesquisa de hemólise fetal. Quando foram indicadas as transfusões intra-uterinas intravasculares, a hemoglobina do cordão foi dosada no início do procedimento. Nos demais casos, a hemoglobina do cordão foi mensurada no momento do parto, sempre por cesariana eletiva. Obteve-se um total de 74 procedimentos estudados, definidos como sendo cada transfusão intra-uterina precedida pela dopplervelocimetria venosa. A mensuração da concentração da hemoglobina fetal foi realizada no Hemocue® (B-Hemoglobin Photometer Hemocue AB; Angelholm, Sweden, dispositivo usado para a determinação quantitativa de hemoglobina no sangue. A dopplervelocimetria da cava inferior e do ducto venoso foi realizada antecedendo a coleta do sangue fetal, sempre em intervalo de tempo inferior a 24 horas. Os índices dopplervelocimétricos estudados foram o índice de pulsatilidade para veias (IPV, o índice do pico de velocidade para veias (IPVV e a relação entre o pico de velocidade durante a fase de contração atrial e o pico de velocidade na sístole ventricular (relação CA/SV ou índice de pré-carga, na veia cava inferior, e o IPV, IPVV e a relação entre os picos de velocidade da sístole ventricular e da contração atrial (relação SV/CA, no ducto venoso. Foi realizado estudo de correlação entre a dopplervelocimetria da veia cava inferior e do ducto venoso e a hemoglobina do cordão, pela técnica de regressão linear simples. Realizou-se também estudo de associação entre os índices dopplervelocimétricos do compartimento

  9. Retrievable stent filter placement for the treatment of budd-chiari syndrome complicated with inferior vena cava thrombosis: its mid-term results

    International Nuclear Information System (INIS)

    Objective: To investigate the mid-term efficacy of retrievable stent filter placement for the treatment of Budd-Chiari syndrome (BCS) complicated with inferior vena cava (IVC) thrombosis. Methods: Eight patients of BCS complicated with IVC thrombosis were enrolled in this study. IVC thrombosis included segmental occlusion (n = 2) and membranous occlusion (n = 6). In all patients, the IVC was re-canalized by using blunt wire after anticoagulation and thrombolytic therapy, then, the re-canalized site was expanded with small balloon, which was followed by the placement of retrievable stent filter, and, finally, IVC size was dilated with larger balloon. Anticoagulation and thrombolytic therapy was given after the procedure. And all the retrievable stent filters were withdrawn from the IVC through internal jugular vein when the thrombus in IVC was dissolved. In patients with segmental occlusion of IVC, in addition to the placement of retrievable stent filter a 'Z' type vessel stent was also placed during the same interventional session. Follow-up examination with color Doppler sonography was conducted in all patients. Results: Technical success was achieved in all 8 patients without pulmonary infarction or other complications both during and after the operation. Immediately after the thrombus completely disappeared, the retrievable stent filter was successfully taken out in all patients. During a following-up period of 3-12 months, color Doppler sonographs showed that the IVC remained patent in 6 patients and had a recurrence of stenosis in 2 patients. Conclusion: Placement of retrievable stent filter is a safe and effective treatment for BCS complicated with IVC thrombosis. (authors)

  10. Creation of an iOS and Android Mobile Application for Inferior Vena Cava (IVC) Filters: A Powerful Tool to Optimize Care of Patients with IVC Filters.

    Science.gov (United States)

    Deso, Steven E; Idakoji, Ibrahim A; Muelly, Michael C; Kuo, William T

    2016-06-01

    Owing to a myriad of inferior vena cava (IVC) filter types and their potential complications, rapid and correct identification may be challenging when encountered on routine imaging. The authors aimed to develop an interactive mobile application that allows recognition of all IVC filters and related complications, to optimize the care of patients with indwelling IVC filters. The FDA Premarket Notification Database was queried from 1980 to 2014 to identify all IVC filter types in the United States. An electronic search was then performed on MEDLINE and the FDA MAUDE database to identify all reported complications associated with each device. High-resolution photos were taken of each filter type and corresponding computed tomographic and fluoroscopic images were obtained from an institutional review board-approved IVC filter registry. A wireframe and storyboard were created, and software was developed using HTML5/CSS compliant code. The software was deployed using PhoneGap (Adobe, San Jose, CA), and the prototype was tested and refined. Twenty-three IVC filter types were identified for inclusion. Safety data from FDA MAUDE and 72 relevant peer-reviewed studies were acquired, and complication rates for each filter type were highlighted in the application. Digital photos, fluoroscopic images, and CT DICOM files were seamlessly incorporated. All data were succinctly organized electronically, and the software was successfully deployed into Android (Google, Mountain View, CA) and iOS (Apple, Cupertino, CA) platforms. A powerful electronic mobile application was successfully created to allow rapid identification of all IVC filter types and related complications. This application may be used to optimize the care of patients with IVC filters. PMID:27247483

  11. Produção de serapilheira em um fragmento adjacente a uma cava de mineração, Ribeirão Grande, SP

    Directory of Open Access Journals (Sweden)

    Leandro S. Nascimento

    2015-09-01

    Full Text Available RESUMORealizou-se este estudo com o objetivo de avaliar a produção de serapilheira em um fragmento florestal adjacente a uma cava de mineração de calcário, Ribeirão Grande (SP. O material foi coletado mensalmente entre os meses de fevereiro de 2011 a janeiro de 2012. Foram utilizados 14 coletores de madeira (0,25 x 0,25 m, suspensos 20 cm acima da superfície do solo. Em laboratório o material interceptado nos coletores foi triado nas frações: folhas, caules, flores, frutos e sementes, ramos com até 2 cm de diâmetro e restos (material fecal, insetos e plântulas, secado em estufa a 70 °C e pesado em balança analítica. A produção anual média de serapilheira para a área foi de 2809,02 g m-2. Dentre as frações da serapilheira a que mais contribuiu para a produção total foi a fração folhas representando 73,86% do peso seco total (2074,74 g m-2, seguida da fração ramos, com 18,89% da serapilheira total (530,67 g m-2, frutos e sementes 3,39% (95,18 g m-2, restos 2,65% (74,48 g m-2 e flores com 1,21% (33,95 g m-2. Pelos resultados obtidos não há evidências de que a presença da mina esteja interferindo na produção de serapilheira haja vista que os dados alcançados se assemelham aos de outros trabalhos já publicados sobre o tema.

  12. In Vivo Evaluation of the Effects of Gravitational Force (+Gz) on Over-the-Wire Stainless Steel Greenfield Inferior VenaCava Filter in Swine

    International Nuclear Information System (INIS)

    This study was done to determine the effect of exposure to gravitational force (acceleration stress) on invivo over-the-wire stainless steel Greenfield inferior vena cavafilters. Fifteen pigs underwent venous cut down and placement of a stainless steel Greenfield filter. A 4-week observation period simulated realistic convalescence and allowed sufficient time for epithelialization. Ten pigs were exposed to acceleration stress in a centrifuge (3G run for 15 sec followed by rest until return to baseline heart rate, then a 9G run for 15 sec), with inertial loading in ahead-to-tail direction (+Gz). Fluoroscopy during acceleration stress allowed assessment for filter migration. Five pigs were not exposed to acceleration stress. AP and lateral abdominal radiographs were obtained at post-filter placement, convalescence, and centrifuge exposure to determine the position and integrity of the filter. All 15 IVCs were resected and evaluated for gross or histological injury to the vessel wall. IVC filter placement was technically successful in all 15 pigs.Radiographic measurements were limited secondary to differences in pig positioning. Fluoroscopy showed no filter migration. All filters were securely attached to the vena cava by the hooks without gross evidence of perforation or hemorrhage. There were varying degrees of fibroplasia involving the hooks and tip of the filters in both the control and experimental groups. Histologically, there was evidence of prior hemorrhage at the level of the hooks, which was similar between the control and experimental groups. It is concluded that Greenfield filter position and vena caval integrity at the implantation site is unaffected by high acceleration stress

  13. Arthroscopic Superior Capsule Reconstruction for Irreparable Rotator Cuff Tears

    Science.gov (United States)

    Mihata, Teruhisa; Lee, Thay Q.; Itami, Yasuo; HASEGAWA, Akihiko; Ohue, Mutsumi; Neo, Masashi

    2016-01-01

    Objectives: An arthroscopic superior capsule reconstruction, in which the fascia lata autograft attached medially to the superior glenoid and laterally to the greater tuberosity, restores shoulder stability and muscle balance in patients with irreparable rotator cuff tears; consequently, it improves shoulder function specifically deltoid muscle function and relieves pain. We assessed the clinical outcome of arthroscopic superior capsule reconstruction (Figure 1) in 100 consecutive patients with irreparable rotator cuff tears. Specifically, we focused on the rates of return to sport and work. Methods: From 2007 to 2014, we performed arthroscopic superior capsule reconstruction on 107 consecutive patients (mean 66.7 years; range, 43 to 82) with irreparable rotator cuff tears that had failed conservative treatment. Seven patients were lost to follow-up because of other medical problems or reasons. In the remaining 100 patients there were 56 supraspinatus and infraspinatus tears; 39 supraspinatus, infraspinatus, and subscapularis tears; 3 supraspinatus, infraspinatus, teres minor, and subscapularis tears; and 2 supraspinatus, infraspinatus, and teres minor tears. Physical examination, radiography, and MRI were performed before surgery; at 3, 6, and 12 months after surgery; and yearly thereafter. Rates of return to sport and work were also investigated in those patients who had been employed (34 patients: 21 manual workers, 10 farmers, 1 butcher, 1 cook, and 1 athletic trainer) or played sport (26 patients: 6 golf, 4 table tennis, 4 swimming, 3 martial arts, 2 baseball, 2 yoga, 1 tennis, 1 badminton, 1 skiing, 1 mountain-climbing, and 1 ground golf) before injury. Results: The average preoperative American Shoulder and Elbow Surgeons (ASES) score was 31.6 points (range, 3.3 to 63.3 points) and the average Japanese Orthopaedic Association (JOA) score was 51.6 points (26.5 to 68.5 points). Average postoperative clinical outcome scores all improved significantly at final

  14. Monocultivo de eucalipto e consórcio com sesbânia: crescimento inicial em cavas de extração de argila Eucalyptus monocropping and intercropped with sesbania: initial growth in clay mining diggings

    Directory of Open Access Journals (Sweden)

    Anderson Ribeiro Santiago

    2009-02-01

    Full Text Available O consórcio de eucalipto com sesbânia na reabilitação de cavas de extração de argila pode representar uma forma de uso com benefícios ecológicos e econômicos, tendo em vista a sub-utilização a que essas cavas estão sendo submetidas. Este trabalho teve por objetivo avaliar a sobrevivência, o crescimento inicial e características fisiológicas de Eucalyptus camaldulensis, E. tereticornis, E. robusta e E. pellita, em monocultivos e plantios consorciados com Sesbania virgata. Foram instalados dois experimentos (monocultivo e plantio consorciado, numa cava de extração de argila, segundo o delineamento em blocos casualizados com quatro repetições. Os plantios consorciados favoreceram a sobrevivência das espécies. Os eucaliptos no monocultivo apresentaram maior crescimento inicial em diâmetro do colo e em área de copa. As espécies de eucalipto responderam aos efeitos do consórcio e das podas ao longo do tempo, exceto E. tereticornis.Intercropping of Eucalyptus and sesbania for the recovery of clay mining diggings can represent ecological and economic benefits. This work aimed to evaluate survival, initial growth and physiological characteristics of Eucalyptus camaldulensis, E. tereticornis, E. robusta and E. pellita, monocropped and intercropped with Sesbania virgata. Two experiments (monocropping and intercropped were set up in a clay mining digging, arranged in a randomized block design with 4 replicates. Intercropping favored the survival of the species. Eucalyptus monocropping presented a greater initial growth in soil level diameter and canopy area. The eucalyptus species responded to the effects of intercropping and pruning, along time, except for E. tereticornis.

  15. Decoding the superior parietal lobule connections of the superior longitudinal fasciculus/arcuate fasciculus in the human brain.

    Science.gov (United States)

    Kamali, A; Sair, H I; Radmanesh, A; Hasan, K M

    2014-09-26

    The temporo-parietal (TP) white matter connections between the inferior parietal lobule and superior temporal gyrus as part of the superior longitudinal fasciculus/arcuate fasciculus (SLF/AF) or middle longitudinal fasciculus (MdLF) have been studied in prior diffusion tensor tractography (DTT) studies. However, few studies have been focusing on the higher TP connections of the superior parietal lobule with the temporal lobe. These higher TP connections have been shown to have a role in core processes such as attention, memory, emotions, and language. Our most recent study, for the first time, hinted to the possibility of a long white matter connection interconnecting the superior parietal lobule (SPL) with the posterior temporal lobe in human brain which we call the SLF/AF TP-SPL and for a shorter abbreviation, the TP-SPL. We decided to further investigate this white matter connection using fiber assignment by continuous tracking deterministic tractography and high spatial resolution diffusion tensor imaging on 3T. Five healthy right-handed men (age range 24-37 years) were studied. We delineated the SPL connections of the SLF/AF TP bilaterally in five normal adult human brains. Using a high resolution DTT technique, we demonstrate for the first time, the trajectory of a long fiber bundle connectivity between the SPL and posterior temporal lobe, called the SLF/AF TP-SPL (or the TP-SPL), bilaterally in five healthy adult human brains. We also demonstrate the trajectory of the vertically oriented posterior TP connections, interconnecting the inferior parietal lobule (IPL) with the posterior temporal lobe (TP-IPL) in relation to the TP-SPL, arcuate fasciculus and other major language pathways. In the current study, for the first time, we categorized the TP connections into the anterior and posterior connectivity groups and subcategorized each one into the SPL or IPL connections. PMID:25086308

  16. THE HUMAN SUBJECTIVITY BETWEEN THE SUPERIOR AND INFERIOR TYPES A SUBJETIVIDADE HUMANA ENTRE OS TIPOS SUPERIORES E INFERIORES

    Directory of Open Access Journals (Sweden)

    Vagner Silva

    2011-12-01

    Full Text Available This article attempts to solve the following contradiction of Nietzsche's thought: man has a subjective drive constitution, these drives, however, are individuals, and its being (the being of the drives, is constituted for more power fight (the will to power. Nietzsche's superior man (educated and cultivated man is that one, in which there is harmony in the drives, who can give greater freedom to its most terrible drives, without, however, loses the control over them. That is the contradiction: if man has to control the drives, they are not harmonics. There is incompatibility between harmony and control. In other words, the superior man is indeed the man of culture and cultivated man of Nietzsche? If the answer to this question is yes, then, in this man, reigns the drives harmony. If, on the other hand, the answer is no, then, for this man does not become a barbarian destroyer, dangerous to himself and to others it is necessary that a drive dominates the others. However it is not possible to escape the contradiction: either there is harmony in human drive or control.Este artigo busca resolver a seguinte contradição do pensamento de Nietzsche: o homem possui uma constituição subjetiva pulsional, estas pulsões, porém, são individuais, e o seu ser, o das pulsões, constitui-se da luta por mais poder (vontade de poder. O homem superior de Nietzsche (homem culto e cultivado é aquele no qual há harmonia nas pulsões, aquele que pode dar mais liberdade às suas mais terríveis pulsões, sem, no entanto, perder o controle sobre elas. Eis a contradição: se o homem superior exerce controle sobre as pulsões então elas não são harmônicas. Há, aqui, a incompatibilidade entre harmonia e controle. Em outros termos: o homem superior é de fato o homem culto e cultivado de Nietzsche? Se a resposta para esta pergunta for sim, então neste homem reina a harmonia pulsional. Se, por outro lado, a resposta for não, então, para que este homem n

  17. Relative superiority analysis of Garut dam and its crossbred

    Directory of Open Access Journals (Sweden)

    I Inounu

    2005-03-01

    Full Text Available In attemp to increase the productivity of Garut sheep, Indonesian Research Institute for Animal Production has crossed Garut sheep (GG with St. Croix sheep (HH that has high frame body size and adaptable to the hot climate (in 1995 and with Moulton Charollais sheep (MM that has high body weight gain and good milk production to raise multiple birth (in 1996. The objective of this research was to evaluate the ewe productivity of Garut sheep and its crosses with St. Croix and Moulton Charollais. This research was conducted at Animal Research Station, Bogor from 1995 to 2002. In this study the crossing was done using frozen semen of M. Charollais and ram of St. Croix so that the real performance of these sheep under Indonesian condition is not known. So that the relative superiority of these crosses is calculated from the percentage of the differences between traits mean of crossbred and purebred divided by trait means of purebred Garut, except for the threeway crosses (MHG and HMG is calculated from the difference between the means of threeway crossbred trait with the means of two parents (MG and HG. It is concluded that HG and MHG show higher dam productivity than GG, it can be seen from their litter weight at birth and weaning. In poor feed condition GG showed higher productivity than the crossbred sheep (MG and HG, but MHG/MHG showed higher relative superiority compare to their parents (MG and HG. In good feed condition HG and MHG/HMG sheep showed higher productivity than Garut sheep. The relative superiority of HG sheep is 26.40% over GG and for MHG/HMG is 11.24% over their parents (MG and HG.

  18. Competência textual à entrada no Ensino Superior

    OpenAIRE

    Antónia Estrela; Otília Sousa

    2012-01-01

    Este trabalho visa a uma reflexão sobre as competências de escritados alunos à chegada ao Ensino Superior. São descritas e analisadasas principais dificuldades manifestadas pelos alunos no que dizrespeito ao domínio das técnicas de escrita e à própria correçãolinguística. Faz-se ainda uma análise dos programas de LínguaPortuguesa, para o Ensino Secundário, destacando-se ascompetências descritas como nucleares, no ensino da escrita. Apartir daí, tenta-se explicar a existência de diferentes dom...

  19. Competência textual à entrada no Ensino Superior

    OpenAIRE

    Estrela, Antónia

    2013-01-01

    Este trabalho visa a uma reflexão sobre as competências de escrita dos alunos à chegada ao Ensino Superior. São descritas e analisadas as principais dificuldades manifestadas pelos alunos no que diz respeito ao domínio das técnicas de escrita e à própria correção linguística. Faz-se ainda uma análise dos programas de Língua Portuguesa, para o Ensino Secundário, destacando-se as competências descritas como nucleares, no ensino da escrita. A partir daí, tenta-se explicar a ...

  20. Coil compaction after embolization of the superior mesenteric artery pseudoaneurysm

    Energy Technology Data Exchange (ETDEWEB)

    Hama, Yukihiro; Iwasaki, Yoshie; Kaji, Tatsumi; Kusano, Shoichi [Department of Radiology, National Defense Medical College, 3-2 Namiki, Tokorozawa, 3590042 Saitama (Japan); Hatsuse, Kazuo [Department of Surgery I, National Defense Medical College, 3-2 Namiki, Tokorozawa, 3590042 Saitama (Japan)

    2002-07-01

    A 58-year-old man with an abscess of the psoas muscle was returned to our hospital with hematemesis. Two years earlier, he had undergone coil embolization for a superior mesenteric artery (SMA) pseudoaneurysm secondary to pancreatitis. Based on the physical examination, serum amylase level, and abdominal radiographs, a diagnosis of acute exacerbation of pancreatitis and coil compaction of the SMA pseudoaneurysm was made. The patient underwent re-embolization for the coil compaction using interlocking detachable coils. His condition improved gradually, and he was discharged 3 weeks later. To our knowledge, this is the first report of coil compaction of SMA pseudoaneurysm. (orig.)