WorldWideScience

Sample records for surgical options include

  1. Surgical options in ICH including decompressive craniectomy.

    Science.gov (United States)

    Mitchell, Patrick; Gregson, Barbara A; Vindlacheruvu, Raghu R; Mendelow, A David

    2007-10-15

    Intracerebral haemorrhage (ICH) accounts for 15 to 20% of strokes. The condition carries a higher morbidity and mortality than occlusive stroke. Despite considerable research effort, no therapeutic modality either medical or surgical has emerged with clear evidence of benefit other than in rare aneurysmal cases. Intracerebral haemorrhages can be divided into those that arise from pre-existing macroscopic vascular lesions - so called "ictohaemorrhagic lesions", and those that do not; the latter being the commoner. Most of the research that has been done on the benefits of surgery has been in this latter group. Trial data available to date precludes a major benefit from surgical evacuation in a large proportion of cases however there are hypotheses of benefit still under investigation, specifically superficial lobar ICH treated by open surgical evacuation, deeper ICH treated with minimally invasive surgical techniques, and decompressive craniectomy. When an ICH arises from an ictohaemorrhagic lesion, therapy has two goals: to treat the effects of the acute haemorrhage and to prevent a recurrence. Three modalities are available for treating lesions to prevent recurrence: stereotactic radiosurgery, endovascular embolisation, and open surgical resection. As with ICH without an underlying lesion there is no evidence to support surgical removal of the haemorrhage in most cases. An important exception is ICHs arising from intracranial aneurysms where there is good evidence to support evacuation of the haematoma as well as repair of the aneurysm.

  2. Essential Tremor (ET): Surgical Options

    Science.gov (United States)

    ... t respond to propranolol, primidone, or other common ET medications and whose tremor has become debilitating, there ... treatments were first introduced. Current surgical options for ET include Deep Brain Stimulation (DBS) , Focused Ultrasound Thalamotomy , ...

  3. Disc degeneration: current surgical options

    Directory of Open Access Journals (Sweden)

    C Schizas

    2010-10-01

    Full Text Available Chronic low back pain attributed to lumbar disc degeneration poses a serious challenge to physicians. Surgery may be indicated in selected cases following failure of appropriate conservative treatment. For decades, the only surgical option has been spinal fusion, but its results have been inconsistent. Some prospective trials show superiority over usual conservative measures while others fail to demonstrate its advantages. In an effort to improve results of fusion and to decrease the incidence of adjacent segment degeneration, total disc replacement techniques have been introduced and studied extensively. Short-term results have shown superiority over some fusion techniques. Mid-term results however tend to show that this approach yields results equivalent to those of spinal fusion. Nucleus replacement has gained some popularity initially, but evidence on its efficacy is scarce. Dynamic stabilisation, a technique involving less rigid implants than in spinal fusion and performed without the need for bone grafting, represents another surgical option. Evidence again is lacking on its superiority over other surgical strategies and conservative measures. Insertion of interspinous devices posteriorly, aiming at redistributing loads and relieving pain, has been used as an adjunct to disc removal surgery for disc herniation. To date however, there is no clear evidence on their efficacy. Minimally invasive intradiscal thermocoagulation techniques have also been tried, but evidence of their effectiveness is questioned. Surgery using novel biological solutions may be the future of discogenic pain treatment. Collaboration between clinicians and basic scientists in this multidisciplinary field will undoubtedly shape the future of treating symptomatic disc degeneration.

  4. [Surgical options in ulcerative colitis].

    Science.gov (United States)

    Hultén, L; Ecker, K W

    1998-01-01

    Surgery is needed in every second patient with pancolitis. Historically four surgical options have been developed: conventional ileostomy, ileorectostomy, continent ileostomy (Kock's pouch) and ileo-anal pouch. However, in emergent or unclear situations subtotal colectomy, ileostomy and preservation of the rectum is the most suitable operation. After recovery and in elective indications proctectomy and proctocolectomy establish the general surgical standard. Today, in most cases ileo-pouch-anal anastomosis is performed instead of creation of an ileostomy. Both lowered frequency of defecation and acceptable continence contribute to a better quality of life. However, functional disturbances are not uncommon and result in most cases from complications of the demanding technique. Definitive cure of the colitis is in interference with the risk of pouchitis in about 30%. The cumulative probability to loose the pouch may rise to 15-20% in the long-term course. Thus, ileorectostomy may be considered as a first step of surgical treatment, since pelvic nerve damage is excluded, function is much better and persistent proctitis can be treated topically. The attractively is that ileo-anal pouch can be performed later on, when decreasing function and increasing risk of malignant change will eventually require proctectomy. A Kock-pouch is seldom considered, especially in patients with ileostomy wishing sure fecal control. But the continent reservoir becomes more and more interesting again since it can be reconstructed from a failed ileo-anal pouch without loss of bowel. Conventional ileostomy should be reserved for patients not suitable for reconstructive methods or those who consider pough operations risk. However, it is the safest procedure with absolute cure of disease. The optimal choice of method considers medical and surgical aspects as well as patients conception and desire.

  5. Surgical options for complex craniofacial pain.

    Science.gov (United States)

    Sharma, Mayur; Shaw, Andrew; Deogaonkar, Milind

    2014-10-01

    Complex craniofacial pain can be a challenging condition to manage both medically and surgically, but there is a resurgence of interest in the role of neurostimulation therapy. Surgical options for complex craniofacial pain syndromes include peripheral nerve/field stimulation, ganglion stimulation, spinal cord stimulation, dorsal nerve root entry zone lesioning, motor cortex stimulation, and deep brain stimulation. Peripheral nerve/field stimulation is rapidly being explored and is preferred by both patients and surgeons. Technological advances and improved understanding of the interactions of pain pathways with its affective component will widen the scope of neurostimulation therapy for craniofacial pain syndromes.

  6. [Recent surgical options for vestibular vertigo].

    Science.gov (United States)

    Volkenstein, Stefan; Dazert, Stefan

    2017-04-01

    Vertigo is not a well defined symptom but a heterogenous entity diagnosed and treated mainly by otolaryngologists, neurologists, internal medicine and primary care physicians. Most vertigo syndroms have a good prognosis and management is predominantly conservative, whereas the need for surgical therapy is rare, but for a subset of patients often the only remaining option. In this paper, we describe the development of surgical therapy for hydropic inner ear diseases, Menière disease, dehiscence syndroms, perilymphatic fistulas, and benign paroxysmal vertigo. At the end, we shortly introduce the most recent development of vestibular implants. Surgical vestibular therapy is still indicated for selected patients nowadays when conservative options did not reduce symptoms and patients are still suffering. Success depends on the correct diagnosis and indication for the different procedures going along with an adequate patient selection. In regard to the invasiveness and the possible risks due to the surgery, in depth individual counselling is necessary. Ablative and destructive surgical procedures usually achieve a successful vertigo control, but go along with a high risk for hearing loss. Therefore, residual hearing has to be included in the decission making process for a surgical therapy. © Georg Thieme Verlag KG Stuttgart · New York.

  7. Surgical options after Fontan failure

    DEFF Research Database (Denmark)

    van Melle, Joost P; Wolff, Djoeke; Hörer, Jürgen;

    2016-01-01

    OBJECTIVE: The objective of this European multicenter study was to report surgical outcomes of Fontan takedown, Fontan conversion and heart transplantation (HTX) for failing Fontan patients in terms of all-cause mortality and (re-)HTX. METHODS: A retrospective international study was conducted by...

  8. Surgical options for the management of visceral artery aneurysms.

    Science.gov (United States)

    Van Petersen, A; Meerwaldt, R; Geelkerken, R; Zeebregts, C

    2011-06-01

    Visceral artery aneurysm (VAA) is a rare entity but increased use of abdominal imaging has led to an increased prevalence. Rupture is related to a high mortality rate. Open repair, endovascular treatment and laparoscopic techniques have been described as treatment options. In this systematic review we describe the surgical options for treating VAA. A literature search identified articles focussing on the key issues of visceral artery aneurysms and surgical options using the Pubmed and Cochrane databases. Case reports dominate the literature about VAA. Twenty-seven small case series and ten review articles have been published in the last 20 years concerning the surgical options for VAA. The evidence does not exceed level 3. Surgical treatment is dictated by both patient and aneurysm characteristics. Whether VAA should be treated largely depends upon age, gender, presence of hypertension (e.g. in renal aneurysm), aneurysm size and presentation. Aneurysm size and characteristics, anatomical location and presence of collateral circulation dictate the surgical option to be chosen. The mortality and morbidity rates after elective open repair are low. Literature about surgical options for treating VAA remains scarce. Only a few clinical trials have shown the possibilities and results of open surgical repair. In general, there is no consensus on the surgical treatment of VAA and the highest level of evidence is based upon expert opinions.

  9. [Alternative surgical options to heart transplantation].

    Science.gov (United States)

    Dreyfus, G

    1998-11-01

    Cardiac transplantation is the treatment of reference for refractory cardiac failure but the limited number of donors, the complications inherent to transplantation and the relative and absolute contra-indications has made it necessary to find alternative surgical solutions. The detection of myocardial viability by Thallium scintigraphy, Dobutamine echocardiography and/or position emission tomography in coronary disease, allows identification of zones which are capable of recovering contractile function after revascularisation. The authors report the results of a series of 91 operated patients with a 10 year follow-up having a 72% 5 year actuarial survival and improved ejection fraction. The other alternative which may improve symptoms and prognosis in patients with severe ischaemic heart disease with left ventricular dysfunction is apical remodelling or Dor's procedure. The results of a haemodynamic study at 1 year of 171 patients clearly show a functional improvement and an increase of the ejection fraction. The advantage of this method is that it can be used in patients with dyskinetic and akinetic plaques resulting from antero-septo-apical infarction. Finally, even if mitral regurgitation is relatively uncommon in chronic ischaemic heart disease, a simple procedure (annuloplasty) is often sufficient to correct the mitral regurgitation and reduce the afterload of a failing ventricle. On the other hand, in dilated cardiomyopathy, two new options have been developed; one, suggested by Steven Bolling, proposes simple mitral annuloplasty whatever the underlying cause (primary or ischaemic cardiomyopathy) with symptomatic improvement and better haemodynamics in terms of increased cardiac output and oxygen consumption on exercise and an actuarial survival much higher than that of cardiac transplantation at one and at two years. The most recent innovation is the Batista procedure which is a method of ventricular reduction associated with correction of mitral

  10. CURRENT OPTIONS FOR SURGICAL TREATMENT OF GLAUCOMA.

    Science.gov (United States)

    Stefan, Cornel; Batras, Mehdi; Iliescu Daniela, Adriana; Timaru Cristina, Mihaela; De Simone, Algerino; Hosseini-Ramhormozi, Jalaladin

    2015-01-01

    The purpose of this study is to review current surgical treatment and new and better alternatives for patients with glaucoma. Glaucoma refers to a group of related eye disorders that have in common an optic neuropathy associated with visual function loss. It is one of the leading causes of irreversible blindness worldwide. Optic nerve damage and glaucoma-related vision loss can be prevented or limited by early diagnosis and treatment. Surgery offers a better control of the intraocular pressure then medical therapy. Nowadays, research continues for improving current surgical alternatives for treatment.

  11. Modern management of adult coarctation: transcatheter and surgical options.

    Science.gov (United States)

    Schneider, Heiko; Uebing, Anselm; Shore, Darryl F

    2016-08-01

    Coarctation of the aorta (CoA), a juxtaductal obstructive lesion in the descending aorta and commonly associated with hypoplasia of the aortic arch occurs in 5-8% of patients with congenital heart disease. Since the initial surgical corrections in the 1950, surgical and transcatheter options have constantly evolved. Nowadays, transcatheter options are widely accepted as the initial treatment of choice in adults presenting with native or recurrent CoA. Surgical techniques are mainly reserved for patients with complex aortic arch anatomy such as extended arch hypoplasia or stenosis or para-CoA aneurysm formation. Extended aneurysms can be covered by conformable stents but stent implantation may require preparative vascular surgery. Complex re-CoA my best be treated by an ascending to descending bypass conduit. The following review aims to describe current endovascular and surgical practice pointing out modern developments and their limitations.

  12. Option for surgical management of cerebral haematoma: case report.

    Science.gov (United States)

    Popa, G; Nistorescu, A; Gorgan, M; Macovei, M; Alaicescu, M

    1994-01-01

    A 48-year-old male patient, a surgeon, displayed a right temporo-occipital cerebral haematoma (5 x 7 cm). He had a history of chronic left occipital migraine-like cephalalgia from the age of 16 and hypertension was diagnosed when he was 42 years old. As therapy, he used ACE inhibitors, nifedipine and clonidine for hypertension and for cephalalgia a combination of aspirin, phenacetin and caffeine. During the last 2-3 months before the detection of cerebral haematoma, injections with piritramide were made when severe headaches were unbearable. The patient was operated on the 7th day since the onset of cerebral haematoma after a "wait and see" period of repeated clinical and CT-scan assessment. The initial option of the patient was surgical. We consider that the patient's profession (medical/surgical profile) may have played a positive motivation for the surgical option.

  13. Kalaeloa Energy System Redevelopment Options Including Advanced Microgrids.

    Energy Technology Data Exchange (ETDEWEB)

    Hightower, Marion Michael [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Baca, Michael J. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); VanderMey, Carissa [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2017-03-01

    In June 2016, the Department of Energy's (DOE's) Office of Energy Efficiency and Renewable Energy (EERE) in collaboration with the Renewable Energy Branch for the Hawaii State Energy Office (HSEO), the Hawaii Community Development Authority (HCDA), the United States Navy (Navy), and Sandia National Laboratories (Sandia) established a project to 1) assess the current functionality of the energy infrastructure at the Kalaeloa Community Development District, and 2) evaluate options to use both existing and new distributed and renewable energy generation and storage resources within advanced microgrid frameworks to cost-effectively enhance energy security and reliability for critical stakeholder needs during both short-term and extended electric power outages. This report discusses the results of a stakeholder workshop and associated site visits conducted by Sandia in October 2016 to identify major Kalaeloa stakeholder and tenant energy issues, concerns, and priorities. The report also documents information on the performance and cost benefits of a range of possible energy system improvement options including traditional electric grid upgrade approaches, advanced microgrid upgrades, and combined grid/microgrid improvements. The costs and benefits of the different improvement options are presented, comparing options to see how well they address the energy system reliability, sustainability, and resiliency priorities identified by the Kalaeloa stakeholders.

  14. A review of the surgical options for the correction of presbyopia.

    Science.gov (United States)

    Gil-Cazorla, Raquel; Shah, Sunil; Naroo, Shehzad A

    2016-01-01

    Presbyopia is an age-related eye condition where one of the signs is the reduction in the amplitude of accommodation, resulting in the loss of ability to change the eye's focus from far to near. It is the most common age-related ailments affecting everyone around their mid-40s. Methods for the correction of presbyopia include contact lens and spectacle options but the surgical correction of presbyopia still remains a significant challenge for refractive surgeons. Surgical strategies for dealing with presbyopia may be extraocular (corneal or scleral) or intraocular (removal and replacement of the crystalline lens or some type of treatment on the crystalline lens itself). There are however a number of limitations and considerations that have limited the widespread acceptance of surgical correction of presbyopia. Each surgical strategy presents its own unique set of advantages and disadvantages. For example, lens removal and replacement with an intraocular lens may not be preferable in a young patient with presbyopia without a refractive error. Similarly treatment on the crystalline lens may not be a suitable choice for a patient with early signs of cataract. This article is a review of the options available and those that are in development stages and are likely to be available in the near future for the surgical correction of presbyopia.

  15. Paediatric Stroke: Review of the Literature and Possible Treatment Options, including Endovascular Approach

    Directory of Open Access Journals (Sweden)

    Elisa F. Ciceri

    2011-01-01

    Full Text Available Stroke is among the top 10 causes of death in childhood. More than half of the surviving children have long-term neurological sequelae. Ischemic stroke (IS includes arterial ischemic stroke and cerebral venous thrombosis with venous infarction. Haemorrhagic stroke (HS includes intracerebral haematoma or subarachnoid haemorrhage. Risk factors for stroke are different in children and in adults. 10–30% of IS have no identified risk factors. However, multiple risk factors are recognizable in the majority of stroke in children; thus, a comprehensive diagnostic evaluation is crucial. Vascular abnormalities, such as arteriovenous malformations, aneurysms, vessel dissection, stenosis, and moyamoya disease, are frequently associated with both IS and HS and lead to high recurrence rates. Endovascular and surgical treatment options are sometimes indicated, performed on the basis of expert opinion, and extrapolated from the adult procedures. In the present paper, we review the recent literature and we discuss the treatment in five cases managed at our institutions.

  16. Taking Control: Non-Surgical Treatment Options for Urinary Incontinence in Women

    Science.gov (United States)

    ... Home > Decision Aids > Urinary Incontinence > What is UI? Taking Control: Non-surgical Treatment Options for Urinary Incontinence in ... 0 Page 2 What is urinary incontinence (UI)? Taking Control (5-minute video) Click on the video above ...

  17. Surgical Treatment for Refractory Epilepsy: Review of Patient Evaluation and Surgical Options

    Directory of Open Access Journals (Sweden)

    Kristen M. Kelly

    2011-01-01

    Full Text Available Treatment of epilepsy often imposes an exposure to various antiepileptic drugs and requires long-term commitment and compliance from the patient. Although many new medications are now available for the treatment of epilepsy, approximately 30% of epilepsy patients still experience recurrent seizures and many experience undesirable side effects. Treatment of epilepsy requires a multidisciplinary approach. For those patients with medically refractory seizures, surgical treatment has increased in prevalence as techniques and devices improve. With increased utilization, proper patient selection has become crucial in evaluating appropriateness of surgical intervention. Epilepsy syndromes in which surgery has shown to be effective include mesial temporal sclerosis, cortical dysplasia, many pediatric epilepsy syndromes, and vascular malformations. Monitoring in an epilepsy monitoring unit with continuous scalp or intracranial EEG is an important step in localization of seizure focus. MRI is the standard imaging technique for evaluation of anatomy. However, other imaging studies including SPECT and PET have become more widespread, often offering increased diagnostic value in select situations. In addition, as an alternative or adjunct to surgical resection, implantable devices such as vagus nerve stimulators, deep brain stimulators, and direct brain stimulators could be useful in seizure treatment.

  18. Treatment Options for Plasma Cell Neoplasms (Including Multiple Myeloma)

    Science.gov (United States)

    ... Cell Neoplasms Treatment Research Plasma Cell Neoplasms (Including Multiple Myeloma) Treatment (PDQ®)–Patient Version General Information About Plasma ... the throat can make it hard to swallow. Multiple myeloma In multiple myeloma , abnormal plasma cells ( myeloma cells ) ...

  19. Treatment Option Overview (Plasma Cell Neoplasms Including Multiple Myeloma)

    Science.gov (United States)

    ... Cell Neoplasms Treatment Research Plasma Cell Neoplasms (Including Multiple Myeloma) Treatment (PDQ®)–Patient Version General Information About Plasma ... the throat can make it hard to swallow. Multiple myeloma In multiple myeloma , abnormal plasma cells ( myeloma cells ) ...

  20. Surgical issues in lung transplantation: options, donor selection, graft preservation, and airway healing.

    Science.gov (United States)

    Daly, R C; McGregor, C G

    1997-01-01

    To present an overview of the surgical issues in lung transplantation, including the historical context and the rationale for choosing a particular procedure for a specific patient, we reviewed and summarized the current medical literature and our personal experience. Several surgical options are available, including single lung transplantation; double lung transplantation; heart-lung transplantation; bilateral, sequential single lung transplantation; and (recently) single lobe transplantation. Although single lung transplantation is preferred for maximal use of the available organs, bilateral lung transplantation is necessary for septic lung diseases and may be appropriate for pulmonary hypertension and bullous emphysema. Heart-lung transplantation is performed for Eisenmenger's syndrome and for primary pulmonary hypertension with severe right ventricular failure. General factors for consideration in assessment of compatibility of the donor and potential recipient include ABO blood group, height (the donor should be within +/- 20% of the recipient's height), and length of the lungs (determined on an anteroposterior chest roentgenogram). Graft preservation and minimal duration of ischemia are important. Complications associated with airway healing are related to ischemia of the donor bronchus. We have addressed the issue of donor bronchial ischemia by direct revascularization of the donor bronchial arteries with use of the recipient's internal thoracic artery. Currently, lung transplantation offers a realistic therapeutic option to patients with end-stage pulmonary parenchymal or vascular disease.

  1. Surgical Treatment Options for the Young and Active Middle-Aged Patient with Glenohumeral Arthritis

    Directory of Open Access Journals (Sweden)

    Sanjeev Bhatia

    2012-01-01

    Full Text Available The diagnosis and treatment of symptomatic chondral lesions in young and active middle-aged patients continues to be a challenging issue. Surgeons must differentiate between incidental chondral lesions from symptomatic pathology that is responsible for the patient's pain. A thorough history, physical examination, and imaging work up is necessary and often results in a diagnosis of exclusion that is verified on arthroscopy. Treatment of symptomatic glenohumeral chondral lesions depends on several factors including the patient's age, occupation, comorbidities, activity level, degree of injury and concomitant shoulder pathology. Furthermore, the size, depth, and location of symptomatic cartilaginous injury should be carefully considered. Patients with lower functional demands may experience success with nonoperative measures such as injection or anti-inflammatory pharmacotherapy. When conservative management fails, surgical options are broadly classified into palliative, reparative, restorative, and reconstructive techniques. Patients with lower functional demands and smaller lesions are best suited for simpler, lower morbidity palliative procedures such as debridement (chondroplasty and cartilage reparative techniques (microfracture. Those with higher functional demands and large glenohumeral defects will usually benefit more from restorative techniques including autograft or allograft osteochondral transfers and autologous chondrocyte implantation (ACI. Reconstructive surgical options are best suited for patients with bipolar lesions.

  2. Cartilage repair and joint preservation: medical and surgical treatment options.

    Science.gov (United States)

    Madry, Henning; Grün, Ulrich Wolfgang; Knutsen, Gunnar

    2011-10-01

    Articular cartilage defects are most often caused by trauma and osteoarthritis and less commonly by metabolic disorders of the subchondral bone, such as osteonecrosis and osteochondritis dissecans. Such defects do not heal spontaneously in adults and can lead to secondary osteoarthritis. Medications are indicated for symptomatic relief. Slow-acting drugs in osteoarthritis (SADOA), such as glucosamine and chondroitin, are thought to prevent cartilage degeneration. Reconstructive surgical treatment strategies aim to form a repair tissue or to unload compartments of the joint with articular cartilage damage. In this article, we selectively review the pertinent literature, focusing on original publications of the past 5 years and older standard texts. Particular attention is paid to guidelines and clinical studies with a high level of evidence, along with review articles, clinical trials, and book chapters. There have been only a few randomized trials of medical versus surgical treatments. Pharmacological therapies are now available that are intended to treat the cartilage defect per se, rather than the associated symptoms, yet none of them has yet been shown to slow or reverse the progression of cartilage destruction. Surgical débridement of cartilage does not prevent the progression of osteoarthritis and is thus not recommended as the sole treatment. Marrow-stimulating procedures and osteochondral grafts are indicated for small focal articular cartilage defects, while autologous chondrocyte implantationis mainly indicated for larger cartilage defects. These surgical reconstructive techniques play a lesser role in the treatment of osteoarthritis. Osteotomy near the knee joint is indicated for axial realignment when unilateral osteoarthritis of the knee causes axis deviation. Surgical reconstructive techniques can improve joint function and thereby postpone the need for replacement of the articular surface with an artificial joint.

  3. Male Stress Urinary Incontinence: A Review of Surgical Treatment Options and Outcomes

    Directory of Open Access Journals (Sweden)

    Landon Trost

    2012-01-01

    Full Text Available Introduction and Objective. Iatrogenic male stress urinary incontinence (SUI affects a percentage of men undergoing urologic procedures with a significant impact on quality of life. The treatment of male SUI has evolved significantly with multiple current options for treatment available. The current paper discusses preoperative evaluation of male SUI, available surgical options with reported outcomes, and postoperative complication management. Methods. A pubMed review of available literature was performed and summarized on articles reporting outcomes of placement of the artificial urinary sphincter (AUS or male slings including the bone anchored sling (BAS, retrourethral transobturator sling (RTS, adjustable retropubic sling (ARS, and quadratic sling. Results. Reported rates of success (variably defined for BAS, RTS, ARS, and AUS are 36–67%, 9–79%, 13–100%, and 59–91% respectively. Complications reported include infection, erosion, retention, explantation, and transient pain. Male slings are more commonly performed in cases of low-to-moderate SUI with decreasing success with higher degrees of preoperative incontinence. Conclusions. An increasing number of options continue to be developed for the management of male SUI. While the AUS remains the gold-standard therapy for SUI, male sling placement is a proven viable alternative therapy for low-to-moderate SUI.

  4. Frontoethmoid osteoma with pneumocephalus: options for surgical management.

    Science.gov (United States)

    Harasaki, Yasu; Pettijohn, Kelly J; Waziri, Allen; Ramakrishnan, Vijay R

    2013-05-01

    Pneumocephalus is an exceedingly rare complication associated with neurological deficit in cases of frontoethmoid osteoma. The overarching management strategy for affected patients remains undefined. We describe the case of a 61-year-old female patient presenting with frontoethmoid osteoma manifesting as profound intraparenchymal pneumocephalus and associated neurological deficit, treated through a minimally invasive combined surgical strategy involving image-guided burr hole decompression of the pneumocephalus followed by transnasal endoscopic removal of the tumor. Using this approach, the patient rapidly recovered full neurologic function. We review the existing literature and, given the likely intraparenchymal location of pneumocephalus associated with these lesions with the potential of rapid clinical deterioration, recommend aggressive surgical management. Although these lesions can be removed from a purely endoscopic approach, we recommend burr-hole decompression of the pneumocephalus as an adjunct to ensure prompt resolution of the neurologic symptoms.

  5. Fistulectomy as a surgical option for pulmonary arteriovenous malformation

    Institute of Scientific and Technical Information of China (English)

    ZHANG Shao-yan; ZHANG Zhi-tai; OU Song-lei; HU Yan-sheng; SONG Fei-qiang; LI Xin; MA Xu-chen; MA Xin-xin; LIANG Lin; LI Dong; GUO Lin; SUN Zhen

    2009-01-01

    Background Surgical resection remains the treatment of choice for pulmonary arteriovenous malformation but removes some normal lung parenchyma. This study aimed to evaluate the effect and safety of the lung-saving procedure of fistulectomy as an alternative to lung resection.Methods From July 2003 to July 2008, 6 selected patients with pulmonary arteriovenous malformations underwent fistulectomies. Among them, 1 patient underwent emergency operation and 2 underwent bilateral operations. One patient received postoperative embolotherapy.Results No hospital deaths or postoperative morbidity occurred. PaO_2 increased significantly after operation. All patients were free of symptoms and hypoxia during a follow-up for 9 months to 5 years.Conclusions Fistulectomy is a safe and effective procedure for patients with pulmonary arteriovenous malformation and may be an alternative to lung resection.

  6. Update on neuropathic pain treatment for trigeminal neuralgia. The pharmacological and surgical options.

    Science.gov (United States)

    Al-Quliti, Khalid W

    2015-04-01

    Trigeminal neuralgia is a syndrome of unilateral, paroxysmal, stabbing facial pain, originating from the trigeminal nerve. Careful history of typical symptoms is crucial for diagnosis. Most cases are caused by vascular compression of the trigeminal root adjacent to the pons leading to focal demyelination and ephaptic axonal transmission. Brain imaging is required to exclude secondary causes. Many medical and surgical treatments are available. Most patients respond well to pharmacotherapy; carbamazepine and oxcarbazepine are first line therapy, while lamotrigine and baclofen are considered second line treatments. Other drugs such as topiramate, levetiracetam, gabapentin, pregabalin, and botulinum toxin-A are alternative treatments. Surgical options are available if medications are no longer effective or tolerated. Microvascular decompression, gamma knife radiosurgery, and percutaneous rhizotomies are most promising surgical alternatives. This paper reviews the medical and surgical therapeutic options for the treatment of trigeminal neuralgia, based on available evidence and guidelines.

  7. Morbid obesity in pediatric diabetes mellitus: surgical options and outcomes.

    Science.gov (United States)

    Brandt, Mary L; Harmon, Carroll M; Helmrath, Michael A; Inge, Thomas H; McKay, Siripoom V; Michalsky, Marc P

    2010-11-01

    The current obesity epidemic has led to a dramatic increase in insulin resistance and type 2 diabetes mellitus among adolescents, along with other obesity-related comorbidities, such as hypertension, hyperlipidemia, obstructive sleep apnea, psychosocial impairment and nonalcoholic fatty liver disease. Medical treatment of severe obesity is effective in only a small percentage of adolescent patients. In light of the potentially life-threatening complications of obesity, bariatric surgery can be considered a treatment option for adolescent patients with morbid obesity. Indications for surgery rely on both BMI and comorbidity criteria, as well as the ability of the adolescents and their family to understand and comply with perioperative protocols. The long-term effects of bariatric surgery in adolescents are not known; therefore, participation in prospective outcome studies is important. The risk associated with bariatric surgery in adolescents seems to be similar to that observed in adult patients in the short term. Data suggest that bypass procedures successfully reverse or improve abnormal glucose metabolism in the majority of patients and may be more effective in adolescents than adults. This improvement in glucose metabolism occurs before marked weight loss in patients undergoing bypass procedures, suggesting a direct effect on the hormonal control of glucose metabolism.

  8. SURGICAL RECONSTRUCTION IN PRESSURE ULCERS- A RETROSPECTIVE STUDY OF THE WORKHORSE FLAP OPTIONS

    Directory of Open Access Journals (Sweden)

    Sheeja Rajan T. M

    2016-11-01

    Full Text Available BACKGROUND Pressure ulcers can significantly contribute to morbidity and mortality by chronic infections. Radical debridement of all devitalised and infected tissues followed by a reconstructive algorithm for soft tissue padding over bony prominences to prevent recurrent breakdown are the mainstay of surgical management of pressure ulcers. Choice of the soft tissue flap for reconstruction is influenced by the dimensions of ulcers, local tissue availability and surgeon’s preferences. MATERIALS AND METHODS This retrospective study includes 140 patients with spinal injuries having pressure ulcers of NPUAP grade III and IV treated surgically over a period of four years. The demographics of pressure ulcers, the workhorse flap options as well as the outcome were analysed. RESULTS The pressure ulcers were seen predominantly in males (93.6% of 40-49 years’ age group (42.8%. Ischial pressure ulcers (n=104 constituted 74.2% followed by sacral pressure ulcers (n=24 that is 17.1% and trochanteric pressure ulcers (n=12 in 8.6%. Debridement and direct closure of wound were possible only in 10 cases. Majority (92.8% of patients needed additional tissues for wound coverage. Our workhorse fasciocutaneous flaps were rotation flaps from the gluteal region or posterior thigh with medial or lateral based designs (34.2%. Local muscle tissue was used in 64 cases (46% either as gluteal, tensor fascia lata and biceps femoris myocutaneous flaps or gluteus maximus, hamstring or gracilis muscle fillers in myoplasty. CONCLUSIONS Rotation flap along with myoplasty were our workhorse flap options in majority of the pressure ulcers. But, our future perspective is to spare muscle and use more fasciocutaneous perforator flaps for reconstruction according to evidence-based clinical practice.

  9. Indications and surgical options for small bowel, large bowel and perianal Crohn's disease

    Science.gov (United States)

    Toh, James WT; Stewart, Peter; Rickard, Matthew JFX; Leong, Rupert; Wang, Nelson; Young, Christopher J

    2016-01-01

    Despite advancements in medical therapy of Crohn’s disease (CD), majority of patients with CD will eventually require surgical intervention, with at least a third of patients requiring multiple surgeries. It is important to understand the role and timing of surgery, with the goals of therapy to reduce the need for surgery without increasing the odds of emergency surgery and its associated morbidity, as well as to limit surgical recurrence and avoid intestinal failure. The profile of CD patients requiring surgical intervention has changed over the decades with improvements in medical therapy with immunomodulators and biological agents. The most common indication for surgery is obstruction from stricturing disease, followed by abscesses and fistulae. The risk of gastrointestinal bleeding in CD is high but the likelihood of needing surgery for bleeding is low. Most major gastrointestinal bleeding episodes resolve spontaneously, albeit the risk of re-bleeding is high. The risk of colorectal cancer associated with CD is low. While current surgical guidelines recommend a total proctocolectomy for colorectal cancer associated with CD, subtotal colectomy or segmental colectomy with endoscopic surveillance may be a reasonable option. Approximately 20%-40% of CD patients will need perianal surgery during their lifetime. This review assesses the practice parameters and guidelines in the surgical management of CD, with a focus on the indications for surgery in CD (and when not to operate), and a critical evaluation of the timing and surgical options available to improve outcomes and reduce recurrence rates. PMID:27833380

  10. Hormonal and Surgical Treatment Options for Transgender Women and Transfeminine Spectrum Persons.

    Science.gov (United States)

    Wesp, Linda M; Deutsch, Madeline B

    2017-03-01

    Transgender women and other transfeminine spectrum people may pursue hormonal and/or surgical gender-affirming interventions. Hormone therapy includes androgen blockade and estrogen supplementation. Approaches to hormone treatment vary widely based on patient goals and physiology. Surgical procedures are available, including genital affirmation surgery, breast augmentation, and head or neck feminization procedures. Many people are unable to obtain surgeries owing to prohibitive costs and long waiting lists. Hormonal and surgical therapies improve quality of life and mental health with minimal adverse effects. Ongoing research is needed to improve understanding about specific risks of hormone therapy and surgical outcomes.

  11. Neoadjuvant Chemotherapy and Surgical Options for Locally-advanced Breast Cancer: A Single Institution Experience

    Directory of Open Access Journals (Sweden)

    Mohamed Abo Elmagd Salem

    2017-07-01

    Full Text Available Background: Neoadjuvant chemotherapy can downstage the size of the tumor, thus allowing some patients with advanced disease with the option of conservative breast surgery. Our study aims to investigate the effectiveness of neoadjuvant chemotherapy in patients with locally advanced breast cancer. Methods: Fifty-six patients had locally advanced breast cancer. Ten patients (18% were stage IIB, 32 (57% were stage IIIA, 9 (16% were stage IIIB, and 5 (9% were stage IIIC. Patients received neoadjuvant chemotherapy comprised of cyclophosphamide, doxorubicin, and fluorouracil followed by surgery (15 patients with breast conservative surgery,11 with skin sparing mastectomy and latesmus dorsi reconstruction, and 30 patients who underwent modified radical mastectomy and then followed by radiotherapy, 50 Gy with conventional fractionation. Results: Clinical down staging was obtained in 49 (87.5% patients: 5 (9% had complete clinical response, 44 (78.5% had partial response, 6 (10.7% had stable disease, and 1 (1.8% had progressive disease. The primary tumor could not be palpated after chemotherapy in 7 (12.5% of 56 patients who presented with a palpable mass. Median follow-up was 47.5 months. The factors that correlated positively with locoregional recurrence on univariate analysis included hormonal receptor status and surgical margin status. On multivariate analysis, surgical margin status was the only independent significant factor for locoregional recurrence-free survival. In univariate analysis for distant relapse free survival, factors that correlated positively included disease stage and hormonal receptor status. Multivariate analysis showed that tumor stage and hormonal receptor status were independent significant factors that correlated with distant relapse-free survival. Conclusion: Neoadjuvant chemotherapy was effective in clinical down staging and should be considered for patients with advanced breast cancer. It improved operability and enhanced

  12. Lumbar degenerative spinal deformity: Surgical options of PLIF, TLIF and MI-TLIF

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    Hey Hwee Weng

    2010-01-01

    Full Text Available Degenerative disease of the lumbar spine is common in ageing populations. It causes disturbing back pain, radicular symptoms and lowers the quality of life. We will focus our discussion on the surgical options of posterior lumbar interbody fusion (PLIF and transforaminal lumbar interbody fusion (TLIF and minimally invasive transforaminal lumbar interbody fusion (MI-TLIF for lumbar degenerative spinal deformities, which include symptomatic spondylolisthesis and degenerative scoliosis. Through a description of each procedure, we hope to illustrate the potential benefits of TLIF over PLIF. In a retrospective study of 53 ALIF/PLIF patients and 111 TLIF patients we found reduced risk of vessel and nerve injury in TLIF patients due to less exposure of these structures, shortened operative time and reduced intra-operative bleeding. These advantages could be translated to shortened hospital stay, faster recovery period and earlier return to work. The disadvantages of TLIF such as incomplete intervertebral disc and vertebral end-plate removal and potential occult injury to exiting nerve root when under experienced hands are rare. Hence TLIF remains the mainstay of treatment in degenerative deformities of the lumbar spine. However, TLIF being a unilateral transforaminal approach, is unable to decompress the opposite nerve root. This may require contralateral laminotomy, which is a fairly simple procedure.The use of minimally invasive transforaminal lumbar interbody fusion (MI-TLIF to treat degenerative lumbar spinal deformity is still in its early stages. Although the initial results appear promising, it remains a difficult operative procedure to master with a steep learning curve. In a recent study comparing 29 MI-TLIF patients and 29 open TLIF, MI-TLIF was associated with longer operative time, less blood loss, shorter hospital stay, with no difference in SF-36 scores at six months and two years. Whether it can replace traditional TLIF as the surgery of

  13. Assessing CO2 Mitigation Options Utilizing Detailed Electricity Characteristics and Including Renewable Generation

    Science.gov (United States)

    Bensaida, K.; Alie, Colin; Elkamel, A.; Almansoori, A.

    2017-08-01

    This paper presents a novel techno-economic optimization model for assessing the effectiveness of CO2 mitigation options for the electricity generation sub-sector that includes renewable energy generation. The optimization problem was formulated as a MINLP model using the GAMS modeling system. The model seeks the minimization of the power generation costs under CO2 emission constraints by dispatching power from low CO2 emission–intensity units. The model considers the detailed operation of the electricity system to effectively assess the performance of GHG mitigation strategies and integrates load balancing, carbon capture and carbon taxes as methods for reducing CO2 emissions. Two case studies are discussed to analyze the benefits and challenges of the CO2 reduction methods in the electricity system. The proposed mitigations options would not only benefit the environment, but they will as well improve the marginal cost of producing energy which represents an advantage for stakeholders.

  14. An overview of the current surgical options for pineal region tumors

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    Waleed A Azab

    2014-01-01

    Full Text Available Background: The list of pineal region tumors comprises an extensive array of pathological entities originating within one of the most complex areas of the intracranial cavity. With the exception of germ cell tumors, microsurgical excision is still nowadays the mainstay of management for most pineal region tumors. Methods: A search of the medical literature was conducted for publications addressing surgical options for management of pineal region tumors. Results: The infratentorial supracerebellar and the occipital transtentorial approaches are currently the most frequently used approaches for pineal region tumors. Endoscopic tumor biopsy with simultaneous endoscopic third ventriculostomy has emerged as a minimally invasive and highly effective strategy for initial management since it addresses the issue of tissue diagnosis and offers a solution for the associated hydrocephalus frequently encountered in these patients. Endoscope-assisted microsurgery and purely endoscopic excision have been reported in few reports and are likely to be more utilized in the future. Conclusion : Preoperative planning is very crucial and should most importantly be individualized according to the anatomical features of the lesion and structures encountered during the procedure.

  15. Fragmatome lifting: surgical option for intraocular lens and foreign body removal.

    Science.gov (United States)

    Jorge, Rodrigo; Siqueira, Rubens C; Cardillo, José A; Costa, Rogério A

    2005-01-01

    A new technique for intraocular lens (IOL) and foreign body removal using the fragmatome is described. Removal of the formed vitreous, including cortical vitreous, was performed using a conventional vitrectomy probe. The fragmatome tip was placed on the center of the anterior surface of both the IOL optics and the foreign bodies, and active 250 mm Hg vacuum suction was applied. IOLs and foreign bodies were easily held and manipulated after being aspirated into the fragmatome tip, avoiding the use of a forceps or other grasping instrument that may damage the retina. Fragmatome lifting is a reasonable treatment option for IOL and nonmagnetic foreign body removal.

  16. Prognostic factors of infantile spasms: role of treatment options including a ketogenic diet.

    Science.gov (United States)

    Lee, Jeehun; Lee, Jun Hwa; Yu, Hee Jun; Lee, Munhyang

    2013-09-01

    The aim of this study was to provide additional evidences on prognostic factors for infantile spasms and the possible role of a ketogenic diet. A retrospective analysis was performed for patients with infantile spasms who had been followed up for more than 6months between January 2000 and July 2012 at Samsung Medical Center (Seoul, Republic of Korea). We analyzed the association between possible prognostic factors and seizure/developmental outcomes. Sixty-nine patients were included in this study and their mean follow-up duration was 52.5 (9-147) months. In the patients who had been followed up for more than 2years, 53.6% (n=30/57) remained seizure-free at the last visit. Sixty patients (86.9%) showed developmental delay at last follow-up. Forty-two patients (60.9%) became spasm-free with one or two antiepileptic drugs, one patient with epilepsy surgery for a tumor, and seven patients with a ketogenic diet after the failure of two or more antiepileptic drugs. The etiology and age of seizure onset were the significant prognostic factors. In this study, about 60% of the patients became spasm-free with vigabatrin and topiramate. Ketogenic diet increased the rate by 10% in the remaining antiepileptic drug resistant patients. However, 86.9% of the patients showed developmental delay, mostly a severe degree. Early diagnosis and prompt application of treatment options such as antiepileptic drugs, a ketogenic diet or epilepsy surgery can improve outcomes in patients with infantile spasms. Copyright © 2013 The Japanese Society of Child Neurology. Published by Elsevier B.V. All rights reserved.

  17. The effect of including an opt-out option in discrete choice experiments

    NARCIS (Netherlands)

    J. Veldwijk (Jorien); M.S. Lambooij (Mattijs); E.W. de Bekker-Grob (Esther); H.A. Smit (Henriëtte); G.A. De Wit (G. Ardine)

    2014-01-01

    markdownabstractObjective: to determine to what extent the inclusion of an opt-out option in a DCE may have an effect on choice behaviour and therefore might influence the attribute level estimates, the relative importance of the attributes and calculated tradeoffs. Methods: 781 Dutch Type 2

  18. Efficacy of a surgical scrub including 2% chlorhexidine acetate for canine superficial pyoderma.

    Science.gov (United States)

    Murayama, Nobuo; Nagata, Masahiko; Terada, Yuri; Shibata, Sanae; Fukata, Tsuneo

    2010-12-01

    The clinical efficacy of a surgical scrub containing 2% chlorhexidine acetate (2CA; Nolvasan® Surgical Scrub; Fort Dodge Animal Health, USA) was evaluated for the topical management of canine superficial pyoderma. The first study was a randomized, double-blind, controlled trial. The control was a shampoo containing 4% chlorhexidine gluconate (4CG; Skin Clinic Shampoo; CHD MEDICS, Goyang, Korea). Ten dogs with symmetrical lesions of canine superficial pyoderma were allocated to receive either 2CA or the control shampoo applied to either side of the body twice weekly for 1 week. Both the owners and the investigators subjectively scored skin lesions including pruritus, erythema, crusted papules and scales on a scale of 0-3. The 2CA and 4CG resulted in almost the same degree of improvement of skin lesions, and there were no significant differences between the two groups. The second study was an open trial of 2CA monotherapy in eight dogs with cefalexin-resistant Staphylococcus intermedius group-associated superficial pyoderma. The 2CA monotherapy was applied every 2 days for 2 weeks. Five dogs improved with 2CA monotherapy, one partially improved and two did not. No adverse reactions were seen in either trial. This suggests that a 2CA surgical scrub could be a useful and safe topical adjunct therapy for dogs with superficial pyoderma involving cefalexin-resistant Staphylococcus intermedius group.

  19. Suction-irrigation drainage: an underestimated therapeutic option for surgical treatment of deep sternal wound infections†

    Science.gov (United States)

    Deschka, Heinz; Erler, Stefan; El-Ayoubi, Lemir; Vogel, Cordula; Vöhringer, Luise; Wimmer-Greinecker, Gerhard

    2013-01-01

    OBJECTIVES Deep sternal wound infections are significant and severe complications following cardiac surgery and substantially influence perioperative morbidity and mortality. We present the experience of our department using two different surgical treatments over a three-year period. METHODS Between January 2009 and December 2011, a total of 3274 cardiac procedures with complete median sternotomy were performed in our department. In 94 patients (3%), a deep sternal wound infection occurred, including sternal instability with consecutive surgical treatment. The patients either received wound debridement with sternum refixation and suction-irrigation drainage (SID; n = 72) or sternum refixation only (RF; n = 22) if there was sternal instability with limited signs of infection. SID was routinely installed for 7 days: the irrigation solution contained neomycin. In all cases, swabs were taken and analysed. The different methods were evaluated in respect of their clinical outcomes. RESULTS The success rate—defined as single, uncomplicated procedure—of the SID treatment was 74%, compared with 59% of the isolated sternum refixation. Complications included continuous infection, recurrence of sternal instability and wound necrosis. Eighty-eight percent of the swabs in the SID group were positive, compared with 32% in the sternal refixation only group. The dominating pathogenic germs were coagulase-negative staphylococci and staphylococcus aureus. Mortality was 10% for the SID group and 5% for the RF group. CONCLUSIONS Contrary to accepted opinion, the suction-irrigation drainage is an appropriate therapy for deep sternal wound infections. Nevertheless, deep sternal wound infections after cardiac surgery remain severe complications and are related to increased morbidity and mortality. PMID:23529753

  20. Suction-irrigation drainage: an underestimated therapeutic option for surgical treatment of deep sternal wound infections.

    Science.gov (United States)

    Deschka, Heinz; Erler, Stefan; El-Ayoubi, Lemir; Vogel, Cordula; Vöhringer, Luise; Wimmer-Greinecker, Gerhard

    2013-07-01

    Deep sternal wound infections are significant and severe complications following cardiac surgery and substantially influence perioperative morbidity and mortality. We present the experience of our department using two different surgical treatments over a three-year period. Between January 2009 and December 2011, a total of 3274 cardiac procedures with complete median sternotomy were performed in our department. In 94 patients (3%), a deep sternal wound infection occurred, including sternal instability with consecutive surgical treatment. The patients either received wound debridement with sternum refixation and suction-irrigation drainage (SID; n = 72) or sternum refixation only (RF; n = 22) if there was sternal instability with limited signs of infection. SID was routinely installed for 7 days: the irrigation solution contained neomycin. In all cases, swabs were taken and analysed. The different methods were evaluated in respect of their clinical outcomes. The success rate-defined as single, uncomplicated procedure-of the SID treatment was 74%, compared with 59% of the isolated sternum refixation. Complications included continuous infection, recurrence of sternal instability and wound necrosis. Eighty-eight percent of the swabs in the SID group were positive, compared with 32% in the sternal refixation only group. The dominating pathogenic germs were coagulase-negative staphylococci and staphylococcus aureus. Mortality was 10% for the SID group and 5% for the RF group. Contrary to accepted opinion, the suction-irrigation drainage is an appropriate therapy for deep sternal wound infections. Nevertheless, deep sternal wound infections after cardiac surgery remain severe complications and are related to increased morbidity and mortality.

  1. Anomalous Origins of Coronary Arteries From the Pulmonary Artery: A Comprehensive Review of Literature and Surgical Options.

    Science.gov (United States)

    Karimi, Mohsen; Kirshbom, Paul M

    2015-10-01

    Anomalous origins of coronary arteries from the pulmonary artery are rare malformations in which the coronary arteries originate from pulmonary artery sinuses or branches. The consequences are variable although, in most cases, these anomalies lead to severe coronary hypoperfusion and ventricular dysfunction. Surgical correction is indicated once the diagnosis is established due to high early mortality associated with the disease. In nearly all cases, the anomalous artery can be excised from its pulmonary origin, mobilized, and reimplanted directly into the ascending aorta using different surgical techniques. In rare circumstances, technical modifications must be used to restore a normal dual coronary perfusion. The emphasis of this article is to provide a collective review of surgical options published in the literature.

  2. Surgical technique of retrograde ventricle-sinus shunt is an option for the treatment of hydrocephalus in infants after surgical repair of myelomeningocele

    Directory of Open Access Journals (Sweden)

    Matheus Fernandes de Oliveira

    2015-12-01

    Full Text Available ABSTRACT Introduction Treatment of hydrocephalus is accomplished primarily through a ventricular-peritoneal shunt (VPS. This study aims to describe the application of retrograde ventricle-sinus shunt (RVSS in patients with hydrocephalus after surgical treatment of myelomeningocele. Method A prospective, randomized and controlled pilot study. We consecutively enrolled 9 patients with hydrocephalus after surgical repair of myelomeningocele from January 2010 to January 2012. These patients underwent elective RVSS or VPS. Five underwent RVSS and 4 underwent VPS. Patients were followed for one year with quarterly evaluations and application of transcranial Doppler. Results RVSS group showed outcomes similar to those of VPS group. Doppler revealed significant improvement when comparing preoperative to postoperative period. RVSS group had significantly higher cephalic perimeter than VPS group. Neuropsychomotor development, complications and subjective outcomes did not differ between groups. Conclusion RVSS shunt is viable; it is an alternative option for the treatment of hydrocephalus.

  3. Surgical options in disorders of sex development (dsd) with ambiguous genitalia.

    Science.gov (United States)

    Vidal, Isabelle; Gorduza, Daniela Brindusa; Haraux, Elodie; Gay, Claire-Lise; Chatelain, Pierre; Nicolino, Marc; Mure, Pierre-Yves; Mouriquand, Pierre

    2010-04-01

    Disorders of sexual development (DSD) include three main groups of patients: (1) The virilised 46,XX DSD essentially represented by congenital adrenal hyperplasia (CAH) ; (2) The undervirilised 46,XY DSD essentially represented by hypospadias; and (3) the chromosomic jigsaws essentially represented by mixed gonadal dysgenesis. It is in this last group that gender assignment remains a difficult decision involving various indicators, which can be split into four categories: (1) the inside sex (i.e., genes, hormones and target tissues); (2) the outside sex (i.e., anatomy of genitalia including size of the genital tubercle, mullerian cavity and potential adult height of the patient); (3) the functional sex (i.e., potential sexuality and fertility); and (4) and the social sex (i.e., the cultural medium in which the child is brought up). The challenge is to outline the future individual identity of the child in the postnatal period using these indicators. Current evolutions of surgical techniques of 'feminisation' and 'masculinisation' are described as well as their outcomes.

  4. Removing a broken guidewire in the hip joint: treatment options and recommendations for preventing an avoidable surgical catastrophe. A case report

    Directory of Open Access Journals (Sweden)

    Abhijeet Ashok Salunke

    Full Text Available ABSTRACT CONTEXT: Hardware breakage during hip surgery can pose challenging and difficult problems for orthopedic surgeons. Apart from technical difficulties relating to retrieval of the broken hardware, complications such as adjacent joint arthritis and damage to neurovascular structures and major viscera can occur. Complications occurring during the perioperative period must be informed to the patient and proper documentation is essential. The treatment options must be discussed with the patient and relatives and the implant company must be informed about this untoward incident. CASE REPORT: We report a case of complete removal of the implant and then removal of the broken guidewire using a combination of techniques, including a cannulated drill bit, pituitary forceps and Kerrison rongeur. CONCLUSIONS: We suggest some treatment options and recommendations for preventing an avoidable surgical catastrophe.

  5. Total temporomandibular joint prosthesis as a surgical option for severe mouth opening restriction. A case report of a bilateral intervention.

    Science.gov (United States)

    Guarda-Nardini, L; Manfredini, D; Berrone, S; Ferronato, G

    2007-01-01

    Several conservative treatment approaches to the disorders of the temporomandibular joint (TMJ) have been described in the literature. Nonetheless, in a minority of cases not respondent to reversible conservative therapies a surgical approach to the TMJ is needed. In recent years, a total temporomandibular joint replacement with alloplastic prosthesis have been introduced as a treatment option in the presence of a severely damaged or mutilated joint, mainly resulting from severe joint diseases, as in the case of complex inflammatory-degenerative diseases, or failure of previous surgeries. The present paper described a case report of a bilateral temporomandibular joint replacement intervention in a female patient with severe mouth opening restriction and pain in the TMJ area. Also, a discussion of the potential indications for TMJ replacement has been provided, along with the description of the surgical procedure.

  6. Osteoradionecrosis of the jaws: a review of conservative and surgical treatment options.

    Science.gov (United States)

    Cheriex, Kiki C A L; Nijhuis, Tim H J; Mureau, Marc A M

    2013-02-01

    Although surgery still is the most important treatment modality in the management of head and neck cancer, radiotherapy is increasingly being used. Consequently, the majority of head and neck cancer patients are at risk of developing osteoradionecrosis of the jaws, which is the most serious and important complication of radiotherapy. This review presents the etiology, pathophysiology, diagnosis, classification, and prevention of osteoradionecrosis. In addition, the body of evidence regarding conservative as well as surgical treatment of osteoradionecrosis is reviewed, and studies on complications, tumor recurrence and patient survival, dental rehabilitation, and functional and aesthetic outcome after surgical treatment for osteoradionecrosis are discussed.

  7. Management of Oro-antral Communication and Fistula: Various Surgical Options

    Science.gov (United States)

    Khandelwal, Pulkit; Hajira, Neha

    2017-01-01

    Oro-antral communication and fistula can occur as a result of inadequate and improper treatment. Inadvertent communication with the maxillary sinus can occur during certain surgical procedures in the maxillary posterior region. Though, spontaneous healing may occur in defects which are smaller than 2 mm but larger communications require immediate attention and should be treated without delay, in order to avoid sinusitis and further complications leading to patient discomfort.

  8. Distribution of Familial Mediterranean Fever mutations in surgical emergencies including nonspecific abdominal pain: Surgical point of view

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    Pinar Yazici

    2014-08-01

    Full Text Available Purpose : Familial Mediterranean fever (FMF is characterized by recurrent episodes of fever and serositis, resulting in pain in the abdomen, chest, joints and muscles. While patients diagnosed with FMF are under follow-up of the internal medicine doctors, surgeons are rarely responsible the initial diagnosis of FMF. We aimed to investigate the frequency of the FMF in the surgical emergency in those with acute nonspecific abdominal pain. Material and Methods: All patients admitted to emergency service due to acute abdominal pain were evaluated and those resulted with nonspecific pain were enrolled. During six months period, patients consistent with above criteria were examined with abdominal x-ray and ultrasound(US, hematological and biochemical test, and physical examinations. Nine type of FMF mutations were investigated in the patients. All results were comparatively evaluated considering MEFV (+ or MEFV(-. Results: There were 68 patients (35, 51.4% male and 33, 48.5% female with a mean age of 29.5+/-10.1 (range: 17-49 years. All patients displayed mild or severe abdominal pain. Genetic analysis revealed that 19 [MEFV(+] out of 68 patients (27,9% carry mutation either homozygote or heterozygote. The most frequent mutation seen in seven patients was M694V (36.8%. In MEFV(+ patients, fibrinogen, CRP and lactate dehydrogenase levels(LDH were significantly higher (p<0.05. On computed tomography, in six patients in whom US showed decompressed appendix, appendicitis was confirmed and appendectomy was performed. Conclusions: The patients with nonspecific abdominal pain should also be considered for FMF before decision of surgery. High levels of fibrinogen, CRP and LDH in addition to clinical history of similar attacks that arise strong clinical suspicion can help diagnose FMF with genetic analysis. Our results need confirmation in larger prospective studies to confirm these preliminary results. [Cukurova Med J 2014; 39(4.000: 814-821

  9. Cochlear implantation in children with "CHARGE syndrome": surgical options and outcomes.

    Science.gov (United States)

    Ricci, Giampietro; Trabalzini, Franco; Faralli, Mario; D'Ascanio, Luca; Cristi, Cristina; Molini, Egisto

    2014-03-01

    CHARGE syndrome is a rare, polymalformative disease, representing one of the major causes of associated blindness and deafness. Bilateral, severe-profound, sensorineural hearing loss is common in CHARGE children. Aim of this study is to present our results in children with "CHARGE syndrome" submitted to cochlear implantation (CI). The frequency of anatomic anomalies, possible variations in the surgical technique of CI, and the audiological/rehabilitative benefits attained in our patients are reported. we submitted 5 children affected by CHARGE syndrome with profound, bilateral, sensorineural hearing loss to CI. Otoacoustic emissions, auditory brainstem response, acoustic impedance testing, cranial computed tomography and magnetic resonance were carried out preoperatively in all children. CI was performed using the mastoidotomy-posterior tympanotomy approach in two cases, and the suprameatal approach in three children. Infant toddler-meaningful auditory integration scale was used to evaluate kid's audiological performance before and after CI. Intra-operatory findings and postsurgical complications were evaluated. Among our patients, intraoperative anatomical malformations were cochlear hypoplasia (100 %), ossicles malformations (100 %), semicircular canals aplasia (100 %), oval window atresia (60 %), round window atresia (40 %), widening of the aqueduct of the vestibule (20 %), and aberrant course of the facial nerve (20 %). No intra- or postoperative complication was recorded in relation to implant positioning. After a follow-up ranging from 1 to 4.5 years, only 2/5 patients used oral language as the sole mean of communication, 1 started utilizing oral language as the main mean of communication, while 2 patients did not develop any linguistic ability. In conclusion, CI in patients with CHARGE association is feasible and, despite results variability, it should be carried out in CHARGE children with severe hearing loss as soon as possible. Although the selection of a

  10. Multilevel oblique corpectomies as an effective surgical option to treat cervical chordoma in a young girl.

    Science.gov (United States)

    Delfini, Roberto; Marruzzo, Daniele; Tarantino, Roberto; Marotta, Nicola; Landi, Alessandro

    2014-03-16

    Chordomas are malignant tumors arising from notochordal remnants. They are the most frequent tumors of the spine after plasmacytomas. Only 6% of chordomas are localized to the cervical level. In young patients, chordomas are rare and unpredictable. Despite this, the treatment of choice remains the total resection, as much as possible, followed by proton beam radiation. This case was managed using a precarotid and retrocarotid approach at the same time. The tumor was completely resected with the edges free from disease. The cervical spine was stabilized with an anterior plating C2-C4. Eighteen months after surgery the patient is still free from illness. Multilevel oblique corpectomies are an available and safe option for the treatment of upper cervical chordomas.

  11. Extra-anatomical bypass: a surgical option for recurrent aortic coarctation.

    Science.gov (United States)

    Malaj, Alban; Martinelli, Ombretta; Irace, Francesco Giosue'; Jabbour, Jihad; Gossetti, Bruno; Mazzesi, Giuseppe

    2013-01-01

    Background. Balloon aortoplasty with or without stenting is a less invasive alternative to open surgery for the management of recurrent isthmic coarctation. However, in patients with previous small size tube graft, an open surgical correction is mandatory and, in most cases, an anatomical aortic reconstruction is carried out. Methods. We present the case of a 48-year-old woman with recurrent aortic coarctation and systemic hypertension with systolic value around 190-200 mmHg and preoperative systolic pressure gradient 70 mmHg, submitted to an extra-anatomical bypass. Through a median sternotomy, an extra-anatomical bypass from ascending to descending aorta was performed. Results. No intra- or postoperative complications were observed. The postoperative pressure gradient was 10 mmHg and the systolic pressure ranged from 130 to 140 mmHg. Conclusion. The extra-anatomical bypass can be considered an effective and safe alternative to the anatomical aortic reconstruction in the cases with recurrent aortic coarctation unfit for endovascular treatment.

  12. Extra-Anatomical Bypass: A Surgical Option for Recurrent Aortic Coarctation

    Directory of Open Access Journals (Sweden)

    Alban Malaj

    2013-01-01

    Full Text Available Background. Balloon aortoplasty with or without stenting is a less invasive alternative to open surgery for the management of recurrent isthmic coarctation. However, in patients with previous small size tube graft, an open surgical correction is mandatory and, in most cases, an anatomical aortic reconstruction is carried out. Methods. We present the case of a 48-year-old woman with recurrent aortic coarctation and systemic hypertension with systolic value around 190–200 mmHg and preoperative systolic pressure gradient 70 mmHg, submitted to an extra-anatomical bypass. Through a median sternotomy, an extra-anatomical bypass from ascending to descending aorta was performed. Results. No intra- or postoperative complications were observed. The postoperative pressure gradient was 10 mmHg and the systolic pressure ranged from 130 to 140 mmHg. Conclusion. The extra-anatomical bypass can be considered an effective and safe alternative to the anatomical aortic reconstruction in the cases with recurrent aortic coarctation unfit for endovascular treatment.

  13. A good surgical option for ischemic mitral regurgitation in co-morbid patients: semicircular reduction annuloplasty

    Institute of Scientific and Technical Information of China (English)

    Bilgin Emrecan; Gokhan Onem; Ahmet Coskun Ozdemir; (I)smail Do(g)u K(i)l(i)(c); Yusuf (I)zzettin Alihano(g)lu

    2013-01-01

    Background Ring annuloplasty is the standard treatment of ischemic mitral regurgitation (MR), however, it has been associated with some drawbacks. It abolishes normal annular dynamics and freezes the posterior leaflet. In the present study, we evaluated Paneth suture annuloplasty in chronic ischemic MR and both early and mid-term outcomes of the technique on a selected population. Methods The study period was from June 2010 to June 2012. We operated on 21 patients who had the diagnosis of coronary artery disease and MR of grade 3 or 4. The patients had both a coronary artery bypass operation and the mitral semicircular reduction annuloplasty described by Paneth-Burr. The data on the patients were retrospectively collected. Patients were contacted by outpatient clinic controls for mid-term results. Results The male/female ratio was 10/11. The mean age of the patients was 71.0 ± 6.4 years. Preoperative and postoperative left ventricular ejection fraction was statistically similar (P = 0.973). Early postoperative MR grade (mean, 0.57 ± 0.51) was statistically lower than the preoperative MR grades (mean, 3.38 ± 0.50) (P < 0.001). There was no revision for excess bleeding. Two patients had prolonged hospitalization, one for sternal infection and the other for severe chronic obstructive pulmonary disease. No hospital or late postoperative deaths occurred. The mean late postoperative MR grade was 0.66 ± 0.97 degrees. One patient had progression of MR in the later follow-up, which was treated by mitral valve replacement. Conclusion Semicircular reduction annuloplasty is an effective, inexpensive and easy surgical annuloplasty technique with low mortality and morbidity in severe symptomatic ischemic MR.

  14. [Guidelines for the management of severe traumatic brain injury. Part 3. Surgical management of severe traumatic brain injury (Options)].

    Science.gov (United States)

    Potapov, A A; Krylov, V V; Gavrilov, A G; Kravchuk, A D; Likhterman, L B; Petrikov, S S; Talypov, A E; Zakharova, N E; Solodov, A A

    2016-01-01

    Traumatic brain injury (TBI) is one of the main causes of mortality and severe disability in young and middle age patients. Patients with severe TBI, who are in coma, are of particular concern. Adequate diagnosis of primary brain injuries and timely prevention and treatment of secondary injury mechanisms markedly affect the possibility of reducing mortality and severe disability. The present guidelines are based on the authors' experience in developing international and national recommendations for the diagnosis and treatment of mild TBI, penetrating gunshot wounds of the skull and brain, severe TBI, and severe consequences of brain injury, including a vegetative state. In addition, we used the materials of international and national guidelines for the diagnosis, intensive care, and surgical treatment of severe TBI, which were published in recent years. The proposed recommendations for surgical treatment of severe TBI in adults are addressed primarily to neurosurgeons, neurologists, neuroradiologists, anesthesiologists, and intensivists who are routinely involved in treating these patients.

  15. Delayed peripheral nerve repair: methods, including surgical ′cross-bridging′ to promote nerve regeneration

    Directory of Open Access Journals (Sweden)

    Tessa Gordon

    2015-01-01

    Full Text Available Despite the capacity of Schwann cells to support peripheral nerve regeneration, functional recovery after nerve injuries is frequently poor, especially for proximal injuries that require regenerating axons to grow over long distances to reinnervate distal targets. Nerve transfers, where small fascicles from an adjacent intact nerve are coapted to the nerve stump of a nearby denervated muscle, allow for functional return but at the expense of reduced numbers of innervating nerves. A 1-hour period of 20 Hz electrical nerve stimulation via electrodes proximal to an injury site accelerates axon outgrowth to hasten target reinnervation in rats and humans, even after delayed surgery. A novel strategy of enticing donor axons from an otherwise intact nerve to grow through small nerve grafts (cross-bridges into a denervated nerve stump, promotes improved axon regeneration after delayed nerve repair. The efficacy of this technique has been demonstrated in a rat model and is now in clinical use in patients undergoing cross-face nerve grafting for facial paralysis. In conclusion, brief electrical stimulation, combined with the surgical technique of promoting the regeneration of some donor axons to ′protect′ chronically denervated Schwann cells, improves nerve regeneration and, in turn, functional outcomes in the management of peripheral nerve injuries.

  16. Evaluating the prevalence of canceling surgical operations,including its influencing factors at Imam Khomeini hospital in Sari during 2006-2007

    Directory of Open Access Journals (Sweden)

    A. Zamani kiasari

    2008-01-01

    Full Text Available AbstractBackground and Purpose: Hospital admission for surgery is an important event for patients. Canceling surgical procedures produce several unpleasant results for patients such as waste of time, including payment. The aim of this study is to identify the prevalence and causes of canceling surgical procedures, in order to achieve problem solving methods.Materials and Methods: This is a descriptive cross-sectional study. Statistical data regarding all surgical procedures (without sampling performed during 2006 to 2007, were recorded in a checklist. Study variables were identified based on surgical procedures that were canceled during this study. Data was analyzed using SPSS software and statistical analysis tests.Results: Of 4,711 scheduled patients, 510 (10/9% surgical operations were canceled. The highest number of patient candidates for surgical operation was related to gynecology, orthopedic, urology, while the least were related to reconstructive and vascular surgery groups respectively. The most canceled surgical procedures were related to neurosurgical operation 32/4% (68 from 207 cases while the least canceled cases belonged to gynecology 4/4% (48 from 1094 cases.Conclusion: The results of our study showed that 54/2% of canceled cases were preventable. The results of this study and similar studies demonstrate that traditional pre-operative preparation for surgical scheduling, day before surgery is in need of serious consideration. We recommend a fundamental change by discarding traditional methods and creating a new committee including specialized bed or resource groups, monthly management meetings to discuss causes of canceling surgical procedures, in order to reduce its occurrence. Thus, decreasing the rate of canceling surgical wasted, while reducing anxiety in patients and their family. J Mazand Univ Med Sci 2008; 18(65:52-62 (Persian

  17. Management options of varicoceles

    Directory of Open Access Journals (Sweden)

    Peter Chan

    2011-01-01

    Full Text Available Varicocele is one of the most common causes of male infertility. Treatment options for varicoceles includes open varicocelectomy performed at various anatomical levels. Laparoscopic varicocelectomy has been established to be a safe and effective treatment for varicoceles. Robotic surgery has been introduced recently as an alternative surgical option for varicocelectomy. Microsurgical varicocelectomy has gained increasing popularity among experts in male reproductive medicine as the treatment of choice for varicocele because of its superior surgical outcomes. There is a growing volume of literature in the recent years on minimal invasive varicocele treatment with percutaneous retrograde and anterograde venous embolization/sclerotherapy. In this review, we will discuss the advantages and limitations associated with each treatment modality for varicoceles. Employment of these advanced techniques of varicocelectomy can provide a safe and effective approach aiming to eliminate varicocele, preserve testicular function and, in a substantial number of men, increase semen quality and the likelihood of pregnancy.

  18. Tympanotomy with sealing of the round window as surgical salvage option in sudden idiopathic sensorineural hearing loss.

    Science.gov (United States)

    Loader, Benjamin; Atteneder, Claudia; Kaider, Alexandra; Franz, Peter

    2013-12-01

    Tympanotomy with sealing of the round window is a promising surgical alternative as a salvage strategy in younger patients with acute idiopathic sensorineural hearing loss (SNHL) and may be considered as an alternative drug delivery method to the round window. To analyze the potential benefit of the sealing of the round window with special emphasis on the age of treated patients and the influence of time elapsed between symptom onset and surgery. This was a retrospective cohort study of 25 patients (13 males,12 females) with an average age of 55 years (range 31-75 years) with sudden SNHL, who underwent an enaural tympanotomy with sealing of the round niche using triamcinolone-soaked fascia. Pre- and postoperative bone conduction thresholds were compared for each frequency and for the pure-tone average (PTA) measured at 500 Hz, 1 kHz, 2 kHz, and 3 kHZ. The time (days) between primary symptom onset and surgery as well as age was scrutinized. Hearing improvement was described as 'no improvement' (0-9 dB), 'moderate recovery' (10-29 dB), or 'marked recovery' (≥30 dB). The difference in age of patients who improved was compared to those who did not. A statistically significant improvement in PTA values (mean change 20.4 dB) was noted (p = 0.0002). In all, 13/25 (52%) patients exhibited improved bone conduction postoperatively regardless of age and time of treatment. A marked recovery (≥30 dB) could be seen in eight patients (median time to surgery, 9 days; average age, 48.5 years); recovery between 10 and 30 dB in five patients (median time to surgery, 10 days; average age, 46.6 years). Twelve significantly older patients showed no improvement (average time to surgery, 19 days; average age, 61.8 years; p = 0.004). No patient over the age of 65 years showed improvement in bone conduction.

  19. Optimal Portfolio Selection Including Option with Regime Switching%模式转换市场下含期权的投资组合问题

    Institute of Scientific and Technical Information of China (English)

    梁月; 王子亭; 王晓洁

    2011-01-01

    In this paper, we consider the optimal portfolio selection including option under a Markov modulated regime-switching market. We formulate the problem as an utility maximization problem over a finite time horizon and uncertain time horizon. By utilizing the dynamic programming principle, we derive a regime-switching HJB equation. We provide the optimal portfolio selection under different markets which depends on the corresponding parameters. In this paper, we also obtain an important result that the wealth invested in the risky assets and the wealth invested in the option have a linear relationship. And the linear relationships are different in different markets. Specially, we derive the expression of the value function when the utility function is power function.%在Markov调制的模式转换市场下研究含有期权的投资组合问题.采用最大化期望终时财富的效用为目标,考虑确定时间水平与不确定时间水平;应用动态规划原理与HJB模型进行求解,得到不同市场模式下的最优投资策略,并且投资策略依赖于不同模式下的参数;得出不同市场模式投资于股票与以股票为标的资产的期权的财富并不是唯一的,二者满足线性关系(系数依赖于模式转换参数);给出了幂函数型效用函数下的值函数的表达式.

  20. Surgical option of lower cervical spine fracture and dislocation%下颈椎骨折脱位的治疗术式选择

    Institute of Scientific and Technical Information of China (English)

    王雷; 柳超; 田纪伟

    2013-01-01

    Objectives:To explore the surgical option and clinical efficacy of lower cervical spine fracture and dislocation.Methods:A total of 32 patients including 23 males and 9 females with a mean age of 56.4 years (ranging from 28 to 78) with lower cervical spine fracture and dislocation and treated surgically from January 2007 to October 2012 was analyzed retrospectively.22 patients suffered from neurological deficit.Based on Frankel system,5 cases were grade A,9 were grade B,6 were grade C,and 2 were grade D before surgery.Surgical approaches were determined based on the type of fracture,herniated disc,spinal cord compression,facet joint locking and cervical spine injury degree.Anterior surgery was performed on 21 cases with vertebral fractures but no facet joint locking(anterior cervical discectomy or corpectomy and fusion).Posterior treatment was performed on 4 cases with facet joint locking but no significant vertebral fractures,and MRI finding of no significant pressure or flexion distraction fracture combined with bilateral facet fractures.Combined posterior and anterior approach was performed in 7 cases with vertebral fractures and disc injury associated with facet joint locking or lamina fractures,with the fracture fragments penetrating into the spinal canal.During follow-up,the neurofunction,bony fusion and spine stability were reviewed.Results:All patients underwent surgery safely without severe complications such as tracheal and esophageal injury,4 patients were found complicated with spinal cord injury and cerebrospinal fluid leakage during operation and the wound heal after corresponsive intervention.Postoperatively,all patients were immobilized in a hard collar for 3 months.The average follow-up time was 18.5 months(range,6-24 months).1-2 degree of neurofunction recovery was achieved in all cases except 1 case with Frankel B.X ray verified the proper position of the screws after operation.Fusion achieved in all cases within 6 months(mean 4.5 months

  1. Wetland Biomass Production: emergent aquatic management options and evaluations. A final subcontract report. [Includes a bibliography containing 686 references on Typha from biological abstracts

    Energy Technology Data Exchange (ETDEWEB)

    Pratt, D.C.; Dubbe, D.R.; Garver, E.G.; Linton, P.J.

    1984-07-01

    The high yield potential and attractive chemical composition of Typha make it a particularly viable energy crop. The Minnesota research effort has demonstrated that total annual biomass yields equivalent to 30 dry tonnes/ha (13 tons/acre) are possible in planted stands. This compares with yields of total plant material between 9 and 16 dry tonnes/ha (4 to 7 tons/acre) in a typical Minnesota corn field. At least 50% of the Typha plant is comprised of a belowground rhizome system containing 40% starch and sugar. This high level of easily fermentable carbohydrate makes rhizomes an attractive feedstock for alcohol production. The aboveground portion of the plant is largely cellulose, and although it is not easily fermentable, it can be gasified or burned. This report is organized in a manner that focuses on the evaluation of the management options task. Results from stand management research performed at the University of Minnesota during 1982 and 1983 are integrated with findings from an extensive survey of relevant emergent aquatic plant research and utilization. These results and findings are then arranged in sections dealing with key steps and issues that need to be dealt with in the development of a managed emergent aquatic bio-energy system. A brief section evaluating the current status of rhizome harvesting is also included along with an indexed bibliography of the biology, ecology, and utilization of Typha which was completed with support from this SERI subcontract. 686 references, 11 figures, 17 tables.

  2. Incontinence Treatment: Newer Treatment Options

    Science.gov (United States)

    ... Bowel Incontinence Signs & Symptoms Symptoms of Incontinence Diarrhea Treatment Lifestyle Changes Dietary Tips Medication Bowel Management Biofeedback Surgical Treatments Newer Treatment Options Tips on Finding a Doctor ...

  3. Hernia Surgical Mesh Implants

    Science.gov (United States)

    ... Prosthetics Hernia Surgical Mesh Implants Hernia Surgical Mesh Implants Share Tweet Linkedin Pin it More sharing options ... majority of tissue used to produce these mesh implants are from a pig (porcine) or cow (bovine) ...

  4. Urogynecologic Surgical Mesh Implants

    Science.gov (United States)

    ... Prosthetics Urogynecologic Surgical Mesh Implants Urogynecologic Surgical Mesh Implants Share Tweet Linkedin Pin it More sharing options ... majority of tissue used to produce these mesh implants are from a pig (porcine) or cow (bovine). ...

  5. Nonsurgical Treatment Options for Basal Cell Carcinoma

    Directory of Open Access Journals (Sweden)

    Mary H. Lien

    2011-01-01

    Full Text Available Basal cell carcinoma (BCC remains the most common form of nonmelanoma skin cancer (NMSC in Caucasians, with perhaps as many as 2 million new cases expected to occur in the United States in 2010. Many treatment options, including surgical interventions and nonsurgical alternatives, have been utilized to treat BCC. In this paper, two non-surgical options, imiquimod therapy and photodynamic therapy (PDT, will be discussed. Both modalities have demonstrated acceptable disease control rates, cosmetically superior outcomes, and short-term cost-effectiveness. Further studies evaluating long-term cure rates and long-term cost effectiveness of imiquimod therapy and PDT are needed.

  6. Gastric stromal tumors: clinical presentation and surgical options Tumores estromales gástricos: formas de presentación y opciones quirúrgicas

    Directory of Open Access Journals (Sweden)

    C. Pardo Martínez

    2004-08-01

    Full Text Available Stromal tumors represent 1-3% of all primary gastric neoplasms. These tumors can occur at any age and display different clinical manifestations, but they rarely reach over 10 cm in size. Currently they are designed as gastrointestinal stromal tumors (GIST but their classification is still controversial. Surgery is the treatment of choice, and the extension of surgical resection depends on the tumor size, neoplastic involvement of adjacent organs, and the presence of metastatic disease. In selected cases minimally invasive surgery can provide excellent results. We present four new patients with GIST who exemplify the different clinical forms of presentations of GISTs and their diverse treatment options.Los tumores estromales representan el 1-3% de las neoplasias gástricas primitivas. Se pueden presentar a cualquier edad, bajo muy diversas formas clínicas, siendo raro que alcancen un tamaño superior a los 10 cm. Estos raros tumores se encuadran en la actualidad dentro de los denominados tumores del estroma gastrointestinal (GIST´s , cuya clasificación continúa siendo controvertida. La cirugía es el tratamiento de elección y su extensión viene determinada por el tamaño del tumor, la afectación de órganos vecinos y la presencia o no de metástasis. En casos seleccionados, la cirugía mínimamente invasiva puede llevarse a cabo con excelentes resultados. Presentamos cuatro casos que resumen las distintas formas de presentación clínica de estos tumores así como su manejo terapéutico.

  7. The Preoperative Staging and Surgical Method Options of Differentiated Thyroid Carcinoma%分化型甲状腺癌术前分期与术式选择

    Institute of Scientific and Technical Information of China (English)

    田文; 姚京

    2016-01-01

    伴随甲状腺癌发病率的升高,接受外科治疗的甲状腺癌患者也随之增多,这其中绝大部分为分化型甲状腺癌患者。由于分化型甲状腺癌远期疗效好,治愈率高,容易忽视术前分期和术式选择的重要性,导致部分患者手术效果欠佳,术后无法正常进行131 I治疗以及远期疗效的评估,甚至可能使患者接受多次手术治疗,增加了手术并发症的发生率。因此,正确的术前分期和术式选择除了可以获得满意的手术疗效外,还可以为后续的131 I治疗以及远期评估起到积极的推动作用,并可降低患者的再次手术率,降低手术并发症的发生率。%With the increasing incident of thyroid cancer , many more thyroid cancer patients received surgical treatment , most of whom are diagnosed as differentiated thyroid cancer . However , pre-operative staging of tumor and surgical methods are not always chosen carefully because long -term outcome is considerable good .Inappropriate surgical methods might lead to poor clinical outcome , including unable to receive 131 I treatment and imprecise post-operative assessment .More seriously, the patient might require reoperation with increasing complications .Therefore, accurate pre-operative staging of tumors and appropriate surgical treatment would yield satisfactory outcome and benefit for long term assessment and post-operative 131 I treatment. Furthermore, the patients might have less chance for reoperation and post-operative complications .

  8. Surgical treatment of pediatric rhinosinusitis.

    Science.gov (United States)

    Isaacson, G

    2015-08-01

    Pediatric rhinosinusitis is a common sequela of upper respiratory infections in children. It is usually a self-limited disease, sometimes requiring antibiotic therapy. Surgery may be indicated in children who suffer complication of acute rhinosinusitis, severe recurrent acute rhinosinusitis, rhinosinusitis in cystic fibrosis with or without polyposis, chronic rhinosinusitis refractory to maximal medical management, allergic fungal sinusitis, and paranasal sinus mucoceles. Surgical options include, adenoidectomy, sinus puncture and lavage, open surgical approaches, endoscopic sinus surgery, balloon sinuplasty, and turbinectomy or turbinate reduction. This paper reviews the anatomy and physiology of rhinosinusitis in children and current knowledge of the indications and best methods of surgical treatment.

  9. Lesão complexa da via biliar principal: a ligadura como opção associada a colecistojejunostomia Common bile duct injury: ligation and cholecystojejunostomy as surgical option

    Directory of Open Access Journals (Sweden)

    Sizenando Vieira Starling

    2003-06-01

    Full Text Available The authors present a case of distal common bile duct injury. Ligation of the bile duct and a bypass cholecystojejunostomy were chosen as treatment. Diagnosis of blunt traumatic injury to the extrahepatic biliary ducts may be difficult due to the benign nature of initial bile peritonitis. Surgical treatment for associated abdominal injuries usually makes the diagnosis possible. One of the challenges in the treatment of these injuries relates to the small diameter of the, usually, normal common bile duct. Primary repair and T tube drainage is the best option for non-complex injuries. End-to-end anastomosis and, preferentially, biliary-enteric anastomosis are the best surgical options for more complex injuries. Severe injuries have high complication rates, especially when the distal portion of the common bile duct is affected. Early leaks and late strictures are likely to develop in these situations. Cholecistojejunostomy and ligation of the injuried common bile duct are good surgical options for complex injuries. They carry a low complication rate and consequently low morbidity.

  10. Clinical characteristics and surgical options of distractive flexion injuries in lower cervical spine%下颈椎屈曲分离型损伤的临床特点与手术选择

    Institute of Scientific and Technical Information of China (English)

    龙浩; 肖杰; 郭涛; 陈艺新; 邹伟; 吴陈

    2012-01-01

    目的 探讨下颈椎屈曲分离型损伤的临床特点与手术选择.方法 回顾性分析2007年1月~2010年12月收治的有随访资料的25例下颈椎屈曲分离型损伤病例.其中新鲜损伤(﹤11d)15例,5例出现脊髓损伤,4例出现神经根损伤;陈旧性损伤(1个月~25年)10例均出现明显的颈痛及不同程度脊髓压迫或者神经根刺激症状.15例新鲜损伤患者中11例牵引复位后行前路手术,4例复位失败者行前后路切开复位手术;10例陈旧性损伤患者均采用前路脱位椎下方椎体次全切除术.结果 25例术后随访平均13个月(6~21个月),15例新鲜损伤有9例合并脊髓及神经根损伤,其中7例完全恢复.10例陈旧性损伤中8例患者颈痛及脊髓压迫神经根牵拉症状完全消失.X线片及CT提示椎体间融合好,颈椎生理曲度恢复满意.结论 新鲜下颈椎屈曲分离型损伤患者应积极通过牵引或者手术复位,根据术前复位情况决定手术方式.陈旧性患者可不作勉强复位,通过脱位椎下方椎体次全切除亦能达到神经组织减压的目的.%O b jective To discuss tie clinical characteristics of distractive flexion injuries in kwer cervical spine and to give suggestion on surgical options M ethods Retrospective study was perfomed on25 patients with distractive flexion injuries in kwer cervical spine admitted from Jan2007 toDec2010. There werel5 cases of fresh injury, including5 cases of spinal cord injuries,4 cases of nerve root injuries There were 10 cases of old injuries, all of whan complained of neck pain and neurological dysfunction Preoperative reduction was achieved in 11 cases of fresh injuries, followed by anterior discectomy and fusion Reduction failed in the other4 cases and then they underwent anterior-posterior surgeries Ten cases of old injuries underwent anterior corpectany( the vertebra adjacent to the dislocated vertebrae). Results The average follow-up wasl3 months(6-21 months) in this group Seven

  11. In vitro activity of the new fluoroketolide solithromycin (CEM-101) against a large collection of clinical Neisseria gonorrhoeae isolates and international reference strains, including those with high-level antimicrobial resistance: potential treatment option for gonorrhea?

    Science.gov (United States)

    Golparian, Daniel; Fernandes, Prabhavathi; Ohnishi, Makoto; Jensen, Jörgen S; Unemo, Magnus

    2012-05-01

    Gonorrhea may become untreatable, and new treatment options are essential. We investigated the in vitro activity of the first fluoroketolide, solithromycin. Clinical Neisseria gonorrhoeae isolates and reference strains (n = 246), including the two extensively drug-resistant strains H041 and F89 and additional isolates with clinical cephalosporin resistance and multidrug resistance, were examined. The activity of solithromycin was mainly superior to that of other antimicrobials (n = 10) currently or previously recommended for gonorrhea treatment. Solithromycin might be an effective treatment option for gonorrhea.

  12. Skin-Tissue-sparing Excision with Electrosurgical Peeling (STEEP) : a surgical treatment option for severe hidradenitis suppurativa Hurley stage II/III

    NARCIS (Netherlands)

    Blok, J. L.; Spoo, J. R.; Leeman, F. W. J.; Jonkman, M. F.; Horvath, B.

    2015-01-01

    BackgroundSurgery is the only curative treatment for removal of the persistent sinus tracts in the skin that are characteristic of severe hidradenitis suppurativa (HS). Complete resection of the affected tissue by wide excision is currently regarded as the preferred surgical technique in these cases

  13. [Recruiting and Personal Development in Surgical Departments of Large Referral Centers - Current Practice and Options for Improvement from Industry and Service Business].

    Science.gov (United States)

    Homayounfar, K; König, S; Rabe, C; Beck-Broichsitter, B; Lützen, U; Ghadimi, M B; Schmidt, C

    2016-06-23

    Background: Cut-throat competition, cost pressure, generation Y, shortage of qualified staff and feminisation influence human resources management in visceral surgery. The assessment of the current situation by chief surgeons (CS) as well as proof of transferability of strategies from industry and service business (ISB) have not yet been investigated. Material and Methods: The CS of university hospitals and large referral centres (> 800 beds) were interviewed (n = 100) on the basis of a standardised questionnaire including 43 items. Closed questions were designed with a 5-point Likert scale and their analysis was presented as means (MW) and standard deviations (±). Ten human resources manager (HMR) of ISB were invited to participate in 45-minute telephone interviews. Results: Thirty-seven CS participated in the survey, 15 of whom were full professors. Unsolicited applications (100 %), job advertisements (78 %) and direct approaches to final year students (78 %) were the most common ways of recruitment. Only 17 % of CS used a standardised form for preparation. Professional expertise (MW 2.2 ± 0.9), social skills (MW 1.9 ± 0.6) and excellent German language skills (MW 1.8 ± 0.8) were named as important qualifications for employment, while references and certificates were regarded as being less important (MW 3.2 ± 0.9). Personal development was regarded as important (MW 1.1 ± 0.2), but a defined period for residency was not guaranteed (MW 3.0 ± 1.5). Transparent selection criteria for career opportunities (MW 2.5 ± 1.1) and different career models (MW 2.7 ± 1.2) were only rarely available. Six HRM participated in the interviews. Active head-hunting (75 %), Internet platforms (75 %), presentations at conferences (75 %), as well as hiring trainees (50 %), job advertisements (50 %) and social media (50 %) were established options to find qualified employees. Professional and management careers were often

  14. Evaluation of call options

    Institute of Scientific and Technical Information of China (English)

    陈道平

    2002-01-01

    The European and American call options,for which the prices of their underlying asset follow compound Poisson process,are evaluated by a probability method.Formulas that can be used to evaluate the options are obtained,which include not only the elements of an option:the price of the call option,the exercise price and the expiration date,but also the riskless interest rate,nevertheless exclude the volatility of the underlying asset.In practice,the evaluated results obtained by these formulas can proved references of making strategic decision for an investor who buys the call option and a company who sells the call option.

  15. [Relationship between CD4(+) T lymphocyte cell count and the prognosis (including the healing of the incision wound) of HIV/AIDS patients who had undergone surgical operation].

    Science.gov (United States)

    Yang, Di; Zhao, Hongxin; Gao, Guiju; Wei, Kai; Zhang, Li; Han, Ning; Xiao, Jiang; Li, Xin; Wang, Fang; Liang, Hongyuan; Zhang, Wei; Wu, Liang

    2014-12-01

    To explore the relationship between CD4(+) T lymphocyte cell count and prognosis as well as healing of the surgical incision in HIV/AIDS patients who had received operation. Data were collected and analysed retrospectively from 234 HIV/AIDS patients hospitalized at the Beijing Ditan hospital who underwent operation between January 2008 and December 2012. Following factors were taken into consideration that including:age, gender, time and where that anti-HIV(+) was diagnosed, CD4(+)T lymphocyte cell count at the time of operation, part of the body that being operated, typology of incision, different levels of healing on the surgical incision, infection at the incision site, post-operative complications and the prognosis, etc. Wilcoxon rank sum test, χ(2) test, Kruskal-Wallis H test and Spearman rank correlation were used for statistical analysis to compare the different levels on healing of the incision in relation to the different CD4(+)T lymphocyte cell counts. Rates of level A healing under different CD4(+)T cell counts were also compared. 1) Among the 234 patients including 125 males and 109 females, the average age was 36.17±11.56 years old. Time after discovery of anti-HIV(+)was between 0 and 204 months. The medium CD4(+)T cell count was 388.5 cell/µl; 23.93% of the patients having CD4(+)T lymphocyte cell counts as different organs affected at the time of operation, due to 48 different kinds of illness. 21.37% of the operations belonged to class I incision, 49.57% was class II incision and 29.06% was class III incision. 86.32% of the incisions resulted in level A healing, 12.51% resulted in level B and 1.71% in level C. 4.27% of the patients developed post-operative complications. Differences between level A healing and level B or C healing in terms of CD4(+)T lymphocyte cell count were not significant (P > 0.05). There was no statistically significant difference on the CD4(+) T lymphocyte count in patients with or without postoperative complications

  16. Shoulder acromioclavicular joint reconstruction options and outcomes.

    Science.gov (United States)

    Lee, Simon; Bedi, Asheesh

    2016-12-01

    Acromioclavicular joint separations are a common cause of shoulder pain in the young athletic population. In high-grade injuries, acromioclavicular joint reconstruction procedures may be indicated for functional improvement. There is currently no gold standard for the surgical management of these injuries. Multiple reconstructive options exist, including coracoclavicular screws, hook plates, endobutton coracoclavicular fixations, and anatomic ligament reconstructions with tendon grafts. This article aims to review pertinent acromioclavicular joint anatomy and biomechanics, radiographic evaluation, classification system, as well as reconstruction options, outcomes, and complications.

  17. Distributed Energy Implementation Options

    Energy Technology Data Exchange (ETDEWEB)

    Shah, Chandralata N [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2017-09-13

    This presentation covers the options for implementing distributed energy projects. It distinguishes between options available for distributed energy that is government owned versus privately owned, with a focus on the privately owned options including Energy Savings Performance Contract Energy Sales Agreements (ESPC ESAs). The presentation covers the new ESPC ESA Toolkit and other Federal Energy Management Program resources.

  18. 第五跖骨基底部撕脱骨折的手术选择%Surgical options of avulsion fractures of the fifth metatarsal base

    Institute of Scientific and Technical Information of China (English)

    徐海林; 王天兵; 付中国; 张殿英; 姜保国

    2012-01-01

    背景:第五跖骨基底部撕脱骨折是临床常见骨折,以保守治疗为主,在一些情况下需行手术治疗,目前对其手术适应证和具体手术方法尚存争议.目的:探讨第五跖骨基底部撕脱骨折的手术治疗效果与手术适应证.方法:2004年6月至2011年4月手术治疗34例第五跖骨基底部撕脱骨折患者,男18例,女16例;左侧14例,右侧20例;其中6例行克氏针张力带固定,6例行可吸收钉固定,18例行空心钉固定,3例为陈旧骨折不愈合行锁定接骨板固定,1例行骑缝钉固定.均为Dameron分型1区骨折,手术适应证为明显移位超过2mm或累及骰骨第5跖骨关节面超过30%,受伤机制均为扭伤.结果:24例患者获得随访,随访时间为8~78个月,平均27个月,伤口均一期愈合,愈合时间为2.7 ~3.3个月,平均3个月.根据美国足踝协会中前足功能评分为87 ~ 100分,平均(93.0±5.3)分;VAS疼痛评分为0~2分,平均(0.6±0.8)分.结论:第五跖骨基底部撕脱骨折根据骨折情况采取适合的手术治疗可取得良好的治疗效果,但需严格掌握手术适应证.%Background: The fifth metatarsal base avulsion fractures are common in clinical practice. Conservative treatment is its major treatment. But sometimes it need surgical treatment. There are still controvercy in indications and methods of surgical treatment.Objective; The aim of this study is to explore the clinical outcomes and indications of surgical treatment of avulsion fractures of the fifth metatarsal base.Methods; From June 2004 to April 2011, 34 patients with fractures of Dameron Iarea (male 18, female 16, right side 20, left side 14) were operatively treated. Among them, 6 patients were treated by tension band, 6 patients were treated by absorbable screw, 18 patients were treated by cannulated screw, 3 patients with old fracture disunion were treated by locked plate and screw, and 1 patient was treated by staple. Indication of surgical treatment

  19. TANK SPACE OPTIONS REPORT

    Energy Technology Data Exchange (ETDEWEB)

    WILLIS WL; AHRENDT MR

    2009-08-11

    Since this report was originally issued in 2001, several options proposed for increasing double-shell tank (DST) storage space were implemented or are in the process of implementation. Changes to the single-shell tank (SST) waste retrieval schedule, completion of DST space saving options, and the DST space saving options in progress have delayed the projected shortfall of DST storage space from the 2007-2011 to the 2018-2025 timeframe (ORP-11242, River Protection Project System Plan). This report reevaluates options from Rev. 0 and includes evaluations of new options for alleviating projected restrictions on SST waste retrieval beginning in 2018 because of the lack of DST storage space.

  20. Rehabilitation Options

    Science.gov (United States)

    ... Speech Pathology Occupational Therapy Art Therapy Recreational therapy Neuropsychology Home Care Options Advanced Care Planning Palliative Care ... Speech Pathology Occupational Therapy Art Therapy Recreational therapy Neuropsychology Home Care Options Advanced Care Planning Palliative Care ...

  1. Pricing Options.

    Science.gov (United States)

    Tenopir, Carol

    1998-01-01

    Presents results of a recent survey of over 100 public and academic libraries about pricing options from online companies. Most options fall into three categories: pay-as-you-go, fixed-rate, and user-based. Results are discussed separately for public and academic libraries and for consortial discounts. Trends in pricing options preferred by…

  2. Surgical Treatment for Hepatocellular Carcinoma

    Directory of Open Access Journals (Sweden)

    Ahmad A Madkhali

    2015-01-01

    Full Text Available Hepatocellular carcinoma (HCC is an epithelial tumor derived from hepatocytes; it accounts for 80% of all primary liver cancers and ranks globally as the fourth leading cause of cancer-related deaths. HCC treatment is a multidisciplinary and a multimodal task, with surgery in the form of liver resection and liver transplantation (LT representing the only potentially curative modality. However, there are variable opinions and discussions about applying these surgical options and using other supporting treatments. This article is a narrative review that includes articles published from 1984 to 2013 located by searching scientific databases such as PubMed, SCOPUS, and Elsevier, with the main keyword of hepatocellular carcinoma in addition to other keywords such as liver transplantation, liver resection, transarterial chemoembolization, portal vein embolization, bridging therapy, and downstaging. In this review, we focus mainly on the surgical treatment options offered for HCC, in order to illustrate the current relevant data available in the literature to help in applying these surgical options and to use other supporting treatment modalities when appropriate.

  3. RECOMBINANT FACTOR VIIa – NEW TREATMENT OPTION FOR CONTROL OF INTRACTABLE BLEEDING IN SURGICAL AND TRAUMA PATIENTS AND IN OTHER HAEMOSTASIS DISORDERS

    Directory of Open Access Journals (Sweden)

    Samo Zver

    2004-12-01

    Full Text Available Background. Recombinant factor VIIa (rFVIIa, which is currently registered only for the treatment of haemophilia A and B patients with inhibitors, is seen increasingly as a possible universal haemostatic agent in untractable bleedings. One possible mechanism for the efficacy rFVIIa may be a consequence of it’s from the tissue factor (TF and from the level of disfunction in haemostatic system independant activity, which generates »thrombin burst« formation. It seems that rFVIIa remains active only at the site of tissue injury/bleeding.Conclusions. There are two components of bleeding in surgery and trauma patients. One is bleeding from large calibre arteries and veins which requires surgical intervention. The other, which goes along with the first one, is coagulopathic bleeding. The latter is a consequence of consumptional and dilutional coagulopathy, hypothermia, multitransfusion syndrom and metabolic disbalances in patients. rFVIIa effects coagulopathic component of the bleeding. For effective treatment with rFVIIa in such patients, replacement therapy with erythrocytes, platelets and fresh frozen plasma is mandatory and requires a haematologist assistance in the treatment strategy.Most reported cases of effective rFVIIa usage are from the field of traumatology. Until now, there have been no universal recommendations when to start treatment with rFVIIa in a bleeding trauma patient. Most experience with rFVIIa are from Israel and their recommendations are perhaps the most valuable ones. rFVIIa was used several times during intra-operative and post-operative bleeding episodes. There are reports of clinical studies and usage in patients with/ after prostate surgery, cardiovascular operations and liver transplants.There are data about effective rFVIIa usage in neurology and neurosurgery patients (intracranial haemorrhages, obstetrics and gynecology field. Possible future indications are thrombocytopenias, thrombocytopathias (Glanzmann

  4. Surgical Treatment Combined with Postoperative Adjuvant Chemotherapy Offer a Viable Option to the Cervical Cancer in Stage ⅠB ~ⅡA with Moderate and High-Risk Factor for Recurrence

    Institute of Scientific and Technical Information of China (English)

    MA Ke; LIU Tongyu; HUANG Weiping; WEN Hongwu; LIAO Qinping

    2012-01-01

    To determine the effectiveness of surgical therapy combined with postoperative adjuvant chemotherapy for cervical cancer with moderate and high-risk factors.Methods:68 patients with cervical cancer in stage Ⅰ B ~ ⅡA were enrolled and initially treated with radical hysterectomy and pelvic lymphadenectomy from January 1999 to December 2009.37 patients were assigned into moderate-risk group (stromal invasion > 50%,poor differentiation,max diameter of tumor ≥ 4 cm,positive LVSI,n =37),and 31patients assigned into high-risk group (positive surgical margin,parametrial invasion,lymph node involvement,n =31).In all cases,chemotherapy was administered adjuvantly:three to four courses of chemotherapy were administered adjuvantly to patients in moderate-risk group and four to six courses to patients in high-risk group.Chemotherapy regimen was BIP (Bleomycin + Ifosfamide + Cisplatin/Carboplatin)for squamous and adenosquamous cancer,and TP (Paclitaxel + Cisplatin/Carboplatin) for adenocarcinoma.Disease-free survival rates and complications of the combined therapy were recorded in follow-up.Results:Estimated 3-year disease-free survival rate was 93.1% for the patientsin moderate-risk group,and 85.4% for the patients in high-risk group (P > 0.05).The recurrence rate was 10.3% for the total 68 patients,and was 8.1% and 12.9% for the patients in moderate-risk group and high-risk group,respectively.The incidence of locoregional recurrence was 5.4% and 6.5% in the moderate-risk group and the high-risk group,respectively.Side effects of chemotherapy and complications of the combined therapy were limited,and no severe bleomycin-related pulmonary toxicity was observed.Conclusions:our results indicate that surgical therapy combined with postoperative adjuvant chemotherapy offers a viable option to the cervical cancer in stage Ⅰ B ~ Ⅱ A.Patients can tolerate the side effects of chemotherapy and get better efficacy.

  5. The surgical management of the refractory overactive bladder

    Directory of Open Access Journals (Sweden)

    Nikhil Vasdev

    2010-01-01

    Full Text Available The refractory overactive bladder is a clinically challenging entity to manage and affects millions of people worldwide. Current surgical treatment options include botulinum toxin type A, sacral neuromodulation, and bladder reconstruction surgery all of which require careful attention to the individual patients needs and circumstances. In our paper we present a detailed up-to-date review on all the above mentioned surgical techniques from current literature and briefly describe our units experience with sacral neuromodulation.

  6. Knee-attributable medical costs and risk of re-surgery among patients utilizing non-surgical treatment options for knee arthrofibrosis in a managed care population.

    Science.gov (United States)

    Stephenson, Judith J; Quimbo, Ralph A; Gu, Tao

    2010-05-01

    To determine if differences in costs and risks of re-hospitalization and/or re-operation exist between arthrofibrosis patients treated with low intensity stretch (LIS) or high intensity stretch (HIS) mechanical therapies, or physical therapy alone (No Device). This observational cohort study utilized administrative claims data to identify arthrofibrosis patients, age arthrofibrosis for the No Device group. Knee-attributable medical costs (KAMC), accrued over 6-month pre- and post-index periods, as well as risks of re-operation, re-injury, and re-hospitalization were compared between groups. Multivariate models were used to evaluate group differences in utilization and costs when controlling for age, sex, and comorbidities. A total of 60 359 patients (143 HIS; 607 LIS; 59 609 No Device) met the inclusion criteria. Unadjusted post-index KAMC were significantly less (p < 0.0001) among HIS patients ($8213 +/- 10 576) relative to LIS ($16 861 +/- 17 857) and No Device ($9345 +/- 14 120) patients. A significantly greater percentage of LIS Device patients had total knee replacements than HIS Device or No Device patients, and the LIS group had a significantly higher percentage of patients with musculoskeletal disease. When controlling for these group differences, the multivariate predictive model results were similar to the unadjusted results, with greater post-index KAMC for the LIS patients (24%, p = 0.025) and No Device (9%, p = 0.323) relative to HIS patients. No Device patients were 71% (p < 0.0001) more likely to have a subsequent knee event than HIS patients, and HIS patients had significantly lower rates of re-hospitalization than LIS and No Device patients (p < 0.0001). Patients treated with HIS mechanical therapy demonstrated significantly reduced rates of re-hospitalization which corresponded to reduced knee-attributable medical costs. Limitations of this study include those inherent in the use of retrospective claims data to identify the cohorts and for

  7. Surgical management of moyamoya disease: a review.

    Science.gov (United States)

    Baaj, Ali A; Agazzi, Siviero; Sayed, Zafar A; Toledo, Maria; Spetzler, Robert F; van Loveren, Harry

    2009-04-01

    Moyamoya disease (MMD) is a progressive, occlusive disease of the distal internal carotid arteries associated with secondary stenosis of the circle of Willis. Symptoms include ischemic infarcts in children and hemorrhages in adults. Bypass of the stenotic vessel(s) is the primary surgical treatment modality for MMD. Superficial temporal artery-to-middle cerebral artery bypass is the most common direct bypass method. Indirect techniques rely on the approximation of vascularized tissue to the cerebral cortex to promote neoangiogenesis. This tissue may be in the form of muscle, pericranium, dura, or even omentum. This review highlights the surgical options available for the treatment of MMD.

  8. Rotator Cuff Tears: Surgical Treatment Options

    Science.gov (United States)

    ... the methods available has its own advantages and disadvantages, all have the same goal: getting the tendon ... AAOS “Find an Orthopaedist” program on OrthoInfo.org. Copyright ©1995-2013 by the American Academy of Orthopaedic ...

  9. [Laparoscopic adrenalectomy: the best surgical option].

    Science.gov (United States)

    Maestre-Maderuelo, Maria; Candel-Arenas, Marife; Terol-Garaulet, Emilio; González-Valverde, Francisco Miguel; Marín-Blazquez, Antonio Albarracin

    2013-01-01

    Antecedentes: la vía de acceso laparoscópico es la técnica de elección en el tratamiento quirúrgico de la glándula suprarrenal, excepto del carcinoma suprarrenal. Objetivo: revisar nuestra experiencia en suprarrenalectomías laparoscópicas por vía lateral transperitoneal efectuadas entre los años 2005 y 2012. Material y método: estudio descriptivo y retrospectivo efectuado mediante la revisión de historias clínicas de 37 pacientes con diagnóstico, al alta, de tumor adrenal y a quienes se hizo adrenalectomía laparoscópica entre abril de 2005 y abril de 2012. Se consideraron los siguientes datos: edad, sexo, lateralidad, indicación quirúrgica, resultados anatomopatológicos, tamaño de la lesión, estancia hospitalaria, tasa de conversión y complicaciones perioperatorias. Resultados: durante el periodo de estudio se intervinieron 37pacientes (19 varones y 18 mujeres) con edad media de 51.72 ± 14.42 años. Se realizaron 22adrenalectomías izquierdas (59.45%) y 15 derechas (40.54%). Las indicaciones de suprarrenalectomía fueron: incidentaloma mayor de 4 cm o con crecimiento rápido y tumores productores de hormonas. El diagnóstico se confirmó con tomografía computada, resonancia magnética, o ambas, y con gammagrafía metaiodobencilguanidina en el caso de sospecha de feocromocitoma y estudio hormonal completo en todos los pacientes. Conclusiones: la suprarrenalectomía laparoscópica sigue siendo la técnica de elección en el tratamiento de pacientes con afectación de la glándula suprarrenal porque ha demostrado ser segura y eficaz, como quedó confirmado en nuestra serie, que tuvo resultados similares a los de la bibliografía.

  10. [Surgical treatment options for paralytic lagophthalmos].

    Science.gov (United States)

    Agafonova, E I; Grusha, Ia O

    2010-01-01

    Facial nerve palsy may result from a broad spectrum of causes, which is largely due to its topographic complexity. Different types of cross plastic surgery and nerve autografting and muscle transplantation and transposition are used to recover nerve function. Lagophthalmos is a most severe sequel of facial nerve palsy. Blephorrhaphy and tarsorrhaphy, operations for removal of lower eyelid ectropion, and different types of palpebral fissure narrowing are used widely to correct lagophthalmos and to prevent corneal complications. Various weight implants and special springs are employed to modify upper eyelid mobility. The lengthening of the upper eyelid levator and the administration of hyaluronic acid gel and botulotoxin type A are proposed for additional upper eyelid descent.

  11. Traditional preventive treatment options

    DEFF Research Database (Denmark)

    Longbottom, C; Ekstrand, K; Zero, D

    2009-01-01

    Preventive treatment options can be divided into primary, secondary and tertiary prevention techniques, which can involve patient- or professionally applied methods. These include: oral hygiene (instruction), pit and fissure sealants ('temporary' or 'permanent'), fluoride applications (patient...

  12. Abortion - surgical

    Science.gov (United States)

    Suction curettage; Surgical abortion; Elective abortion - surgical; Therapeutic abortion - surgical ... Surgical abortion involves dilating the opening to the uterus (cervix) and placing a small suction tube into the uterus. ...

  13. Predictors for anterior pelvic tilt following surgical correction of flexed knee gait including patellar tendon shortening in children with cerebral palsy.

    Science.gov (United States)

    Böhm, Harald; Hösl, Matthias; Döderlein, Leonhard

    2017-05-01

    Patellar tendon shortening procedure within single event multilevel surgeries was shown to improve crouch gait in Cerebral Palsy (CP) patients. However, one of the drawbacks associated to the correction of flexed knee gait may be increased pelvic anterior tilt with compensatory lumbar lordosis. Which CP patients are at risk for excessive anterior pelvic tilt following correction of flexed knee gait including patellar tendon shortening? 32 patients with CP between 8 and 18 years GMFCS I&II were included. They received patellar tendon shortenings within multilevel surgery. Patients with concomitant knee flexor lengthening were excluded. Gait analysis and clinical testing was performed pre- and 24.1 (SD=1.9) months postoperatively. Patients were subdivided into more/less than 5° increase in anterior pelvic tilt. Preoperative measures indicating m. rectus and m. psoas shortness, knee flexor over-length, hip extensor and abdominal muscle weakness and equinus gait were compared between groups. Stepwise multilinear regression of the response value increase in pelvic tilt during stance phase was performed from parameters that were significantly different between groups. 34% of patients showed more than 5° increased pelvic anterior tilt postoperatively. Best predictors for anterior pelvic tilt from preoperative measures were increased m. rectus tone and reduced hip extension during walking that explained together 39% of the variance in increase of anterior pelvic tilt. Every third patient showed considerable increased pelvic tilt following surgery of flexed knee gait. In particular patients with preoperative higher muscle tone in m. rectus and lower hip extension during walking were at risk and both features need to be addressed in the therapy. Copyright © 2017 Elsevier B.V. All rights reserved.

  14. Pediatric lymphatic malformations: evolving understanding and therapeutic options.

    Science.gov (United States)

    Defnet, Ann M; Bagrodia, Naina; Hernandez, Sonia L; Gwilliam, Natalie; Kandel, Jessica J

    2016-05-01

    Multimodal treatment of lymphatic malformations continues to expand as new information about the biology and genetics of these lesions is discovered, along with knowledge gained from clinical practice. A patient-centered approach, ideally provided by a multidisciplinary medical and surgical team, should guide timing and modality of treatment. Current treatment options include observation, surgery, sclerotherapy, radiofrequency ablation, and laser therapy. New medical and surgical therapies are emerging, and include sildenafil, propranolol, sirolimus, and vascularized lymph node transfer. The primary focus of management is to support and optimize these patients' quality of life. Researchers continue to study lymphatic malformations with the goal of increasing therapeutic options and developing effective clinical pathways for these complicated lesions.

  15. Achilles tendinosis: treatment options.

    Science.gov (United States)

    Lopez, Roberto Gabriel L; Jung, Hong-Geun

    2015-03-01

    Athletes usually complain of an ongoing or chronic pain over the Achilles tendon, but recently even non-athletes are experiencing the same kind of pain which affects their daily activities. Achilles tendinosis refers to a degenerative process of the tendon without histologic or clinical signs of intratendinous inflammation. Treatment is based on whether to stimulate or prevent neovascularization. Thus, until now, there is no consensus as to the best treatment for this condition. This paper aims to review the common ways of treating this condition from the conservative to the surgical options.

  16. 退变性腰椎侧凸不同手术方式的适应证选择%Indications of different surgical options for degenerative lumbar scoliosis

    Institute of Scientific and Technical Information of China (English)

    王华东; 吴闻文; 李利; 郭继东; 张宇鹏; 侯树勋

    2015-01-01

    目的:探讨退变性腰椎侧凸( degenerative lumbar scoliosis,DLS )不同手术治疗方式的适应证选择。方法57例DLS患者,平均年龄59.3(51~78)岁,平均病程7.1(2~15)年。根据不同的临床表现及影像学检查,选择不同治疗方式:A组27例,行椎管双侧多节段开窗减压、椎弓根螺钉器械长节段固定矫形、横突间植骨融合;B 组24例,行椎管双侧开窗减压、短节段椎弓根螺钉固定、椎间植骨融合;C 组6例,行单纯椎管减压术。术后1~2周佩带腰背支具下床活动,支具佩带3~6个月。结果术后平均随访36.7(26~65)个月,侧凸Cobb’s角矫正率平均73%(59%~85%);A组的手术时间和手术出血量分别为(150.0±25.2) min、(450.0±55.3) ml,大于B组的(92.0±7.5) min、(205.0±16.5) ml和C组的(52.0±5.5) min、(106.0±19.6) ml,差异有统计学意义( P<0.05),而术后视觉模拟评分( visual analogue scale,VAS )和Oswestry功能障碍指数( oswestry disability index,ODI )改善率3组间差异无统计学意义( P>0.05)。结论根据DLS不同的手术适应证,选择对患者有利的术式是提高疗效的关键。%Objective To study the surgical indications of different treatment options for degenerative lumbar scoliosis. Methods A total of 57 patients with degenerative lumbar scoliosis, whose mean age was 59.3 years old ( range:51-78 years ) and mean course was 7.1 years ( range:2-15 years ), underwent different surgical treatment according to their different clinical and radiological manifestations. In group A, 27 patients received multilevel decompression and long segmental pedical screw fixation with correction and posterolateral fusion. Multilevel decompression and short segmental pedical screw ifxation with interbody fusion but without correction were performed on 24 patients in group B. In group C, only multilevel decompression was carried out in 6 patients. All the patients could ambulate at 1

  17. 不同手术方案在鼻前庭囊肿患者中的应用效果对比%Application results comparing different surgical options in patients with nasal vestibule cyst

    Institute of Scientific and Technical Information of China (English)

    岳显

    2015-01-01

    Objective To investigate the effects of different surgical options on the nasal vestibule cysts for finding the best treatment. Methods The 120 patients of nasal vestibule cysts treated at The Third People's Hospital in Zigong of Sichuan province from March 2008 to December 2013 were randomized into three groups with 40 in each group.The labial sulcus group was given lip sulcus path na-sal vestibule cystectomy,the endoscopic resection group was given endoscopic cyst resection and the endoscopic marsupialization group was given vestibular cyst marsupialization endoscopic surgery.The operative time,amount of bleeding,postoperative facial numbness and swelling,time of drainage tube placement,hospital stay,postoperative infection,and relapse within 6 months were compared a-mong three groups.Results The operative time of the endoscopic resection group was the shortest,followed by that of the endoscopic marsupialization group and that of labial sulcus group .The differences among the three groups were statistically significant (P <0.05).The amounts of bleeding of endoscopic surgical resection group and endoscopic marsupialization group were shorter than that of labial sulcus group (P <0.05).The time of drainage tube placement and hospital stay of endoscopic marsupialization group were the shortest,followed by those of endoscopic resection group and labial sulcus group,with a statistically significant difference among the three groups (P <0.05).The postoperative facial numbness,infection and relapse within six months of endoscopic marsupialization group was significantly lower than those of the other two groups,with statistically significant difference (P <0.05).Conclusions The endoscopic cyst resection and vestibular cyst marsupialization endoscopic surgery were more convenient and have less damage,and the adverse reactions and relapse rate of endoscopic cyst marsupialization is the lowest,therefore,such surgical option is worthy of promo-tion.%目的:探讨不同手

  18. Expensing options solves nothing.

    Science.gov (United States)

    Sahlman, William A

    2002-12-01

    The use of stock options for executive compensation has become a lightning rod for public anger, and it's easy to see why. Many top executives grew hugely rich on the back of the gains they made on their options, profits they've been able to keep even as the value they were supposed to create disappeared. The supposed scam works like this: Current accounting regulations let companies ignore the cost of option grants on their income statements, so they can award valuable option packages without affecting reported earnings. Not charging the cost of the grants supposedly leads to overstated earnings, which purportedly translate into unrealistically high share prices, permitting top executives to realize big gains when they exercise their options. If an accounting anomaly is the problem, then the solution seems obvious: Write off executive share options against the current year's revenues. The trouble is, Sahlman writes, expensing option grants won't give us a more accurate view of earnings, won't add any information not already included in the financial statements, and won't even lead to equal treatment of different forms of executive pay. Far worse, expensing evades the real issue, which is whether compensation (options and other-wise) does what it's supposed to do--namely, help a company recruit, retain, and provide the right people with appropriate performance incentives. Any performance-based compensation system has the potential to encourage cheating. Only ethical management, sensible governance, adequate internal control systems, and comprehensive disclosure will save the investor from disaster. If, Sahlman warns, we pass laws that require the expensing of options, thinking that's fixed the fundamental flaws in corporate America's accounting, we will have missed a golden opportunity to focus on the much more extensive defects in the present system.

  19. Surgical Assisting

    Science.gov (United States)

    ... Insert and remove Foley urinary bladder catheter Place pneumatic tourniquet Confirm procedure with surgeon Drape patient within ... Technology and Surgical Assisting (NBSTSA) offers the CertifiedSurgical First Assistant (CSFA) credential, and the National Surgical Assistant ...

  20. Polish Toxic Currency Options

    Directory of Open Access Journals (Sweden)

    Waldemar Gontarski

    2009-04-01

    Full Text Available Toxic currency options are defined on the basis of the opposition to the nature (essence of an option contract, which is justified in terms of norms founded on the general law clause of characteristics (nature of a relation (which represents an independent premise for imposing restrictions on the freedom of contracts. So-understood toxic currency options are unlawful. Indeed they contravene iuris cogentis regulations. These include for instance option contracts, which are concluded with a bank, if the bank has not informed about option risk before concluding the contract; or the barrier options, which focus only on the protection of banks interests. Therefore, such options may appear to be invalid. Therefore, performing contracts for toxic currency options may be qualified as a criminal mismanagement. For the sake of security, the manager should then take into consideration filing a claim for stating invalidity (which can be made in a court verdict. At the same time, if the supervisory board member in a commercial company, who can also be a subject to mismanagement offences, commits an omission involving lack of reaction (for example, if he/she fails to notify of the suspected offence committed by the management board members acting to the companys detriment when the management board makes the company conclude option contracts which are charged with absolute invalidity the supervisory board member so acting may be considered to act to the companys detriment. In the most recent Polish jurisprudence and judicature the standard of a good host is treated to be the last resort for determining whether the managers powers resulting from criminal regulations were performed. The manager of the exporter should not, as a rule, issue any options. Issuing options always means assuming an obligation. In the case of currency put options it is an absolute obligation to purchase a given amount in euro at exchange rate set in advance. On the other hand issuing

  1. Surgical resection for esophageal carcinoma: Speaking the language

    Institute of Scientific and Technical Information of China (English)

    Robert J. Korst

    2005-01-01

    The terminology used to describe esophagectomy for carcinoma can be confusing, even for specialists in gastrointestinal disease. As a result, specific terms are often used out of their intended context. To simplify the nomenclature, two points regarding procedures for surgical resection of the esophagus are critical: the extent of resection (radical vs standard) and the operative approach (choice of incisions). It is important to understand that the radicality of the resection may have little to do with the operative approach, with the exception of esophagectomy without thoracotomy (transhiatal esophagectomy), which mandates the performance of a standard or non-radical resection. Esophagectomy has emerged as the standard curative treatment option for patients with esophageal carcinoma; however, unlike the surgical resection of other types of solid tumors, many different surgical options and/or approaches exist for these patients. This heterogeneity of care may result from the fact that the esophagus is accessible through more than one body cavity (left hemithorax, right hemithorax, abdomen).In addition, and partially as a result of its accessibility,different types of surgical specialists harbor this operation in their armamentarium, including general surgeons,thoracic surgeons, and surgical oncologists. Despite this enthusiasm amongst surgeons, little consensus exists as to which option is most oncologically sound. Further, the details of the various surgical approaches and procedures for resection of the esophagus are often difficult to comprehend, even for specialists in gastrointestinal disease, with much of the relevant terminology used out of its intended context. To facilitate the understanding of the surgical options for esophageal carcinoma, it is useful to view the operation from two angles: the extent of resection (Aradical@ vs Astandard@) and the operative approach (choice of incisions).

  2. Options Study - Phase II

    Energy Technology Data Exchange (ETDEWEB)

    R. Wigeland; T. Taiwo; M. Todosow; W. Halsey; J. Gehin

    2010-09-01

    The Options Study has been conducted for the purpose of evaluating the potential of alternative integrated nuclear fuel cycle options to favorably address the issues associated with a continuing or expanding use of nuclear power in the United States. The study produced information that can be used to inform decisions identifying potential directions for research and development on such fuel cycle options. An integrated nuclear fuel cycle option is defined in this study as including all aspects of the entire nuclear fuel cycle, from obtaining natural resources for fuel to the ultimate disposal of used nuclear fuel (UNF) or radioactive wastes. Issues such as nuclear waste management, especially the increasing inventory of used nuclear fuel, the current uncertainty about used fuel disposal, and the risk of nuclear weapons proliferation have contributed to the reluctance to expand the use of nuclear power, even though it is recognized that nuclear power is a safe and reliable method of producing electricity. In this Options Study, current, evolutionary, and revolutionary nuclear energy options were all considered, including the use of uranium and thorium, and both once-through and recycle approaches. Available information has been collected and reviewed in order to evaluate the ability of an option to clearly address the challenges associated with the current implementation and potential expansion of commercial nuclear power in the United States. This Options Study is a comprehensive consideration and review of fuel cycle and technology options, including those for disposal, and is not constrained by any limitations that may be imposed by economics, technical maturity, past policy, or speculated future conditions. This Phase II report is intended to be used in conjunction with the Phase I report, and much information in that report is not repeated here, although some information has been updated to reflect recent developments. The focus in this Options Study was to

  3. Nevada Transportatoion Options Study

    Energy Technology Data Exchange (ETDEWEB)

    P. GEHNER; E.M. WEAVER; L. FOSSUM

    2006-05-25

    This study performs a cost and schedule analysis of three Nevada Transportation options that support waste receipt at the repository. Based on the U.S. Department of Energy preference for rail transportation in Nevada (given in the Final Environmental Impact Statement), it has been assumed that a branch rail line would be constructed to support waste receipt at the repository. However, due to potential funding constraints, it is uncertain when rail will be available. The three Nevada Transportation options have been developed to meet a varying degree of requirements for transportation and to provide cost variations used in meeting the funding constraints given in the Technical Direction Letter guidelines for this study. The options include combinations of legal-weight truck, heavy-haul truck, and rail. Option 1 uses a branch rail line that would support initial waste receipt at the repository in 2010. Rail transportation would be the primary mode, supplemented by legal weight trucks. This option provides the highest level of confidence in cost and schedule, lowest public visibility, greatest public acceptability, lowest public dose, and is the recommended option for support of waste receipt. The completion of rail by 2010 will require spending approximately $800 million prior to 2010. Option 2 uses a phased rail approach to address a constrained funding scenario. To meet funding constraints, Option 2 uses a phased approach to delay high cost activities (final design and construction) until after initial waste receipt in 2010. By doing this, approximately 95 percent of the cost associated with completion of a branch rail line is deferred until after 2010. To support waste receipt until a branch rail line is constructed in Nevada, additional legal-weight truck shipments and heavy-haul truck shipments (on a limited basis for naval spent nuclear fuel) would be used to meet the same initial waste receipt rates as in Option 1. Use of heavy-haul shipments in the absence

  4. Interventional treatment for cluster headache: a review of the options.

    Science.gov (United States)

    Rozen, Todd D

    2002-02-01

    There is no more severe pain than that sustained by a cluster headache sufferer. Surgical treatment of cluster headache should only be considered after a patient has exhausted all medical options or when a patient's medical history precludes the use of typical cluster abortive and preventive medications. Once a cluster patient is deemed a medical failure only those who have strictly side-fixed headaches should be considered for surgery. Other criteria for cluster surgery include pain localizing to the ophthalmic division of the trigeminal nerve, a psychologically stable individual, and absence of addictive personality traits. To understand the rationale behind the surgical treatment strategies for cluster, one must have a general understanding of the anatomy of cluster pathogenesis. The most frequently used surgical techniques for cluster are directed toward the sensory trigeminal nerve and the cranial parasympathetic system.

  5. Surgical Treatment of Anorectal Crohn Disease

    Science.gov (United States)

    Lewis, Robert T.; Bleier, Joshua I. S.

    2013-01-01

    Crohn disease involves the perineum and rectum in approximately one-third of patients. Symptoms can range from mild, including skin tags and hemorrhoids, to unremitting and severe, requiring a proctectomy in a small, but significant, portion. Fistula-in-ano and perineal sepsis are the most frequent manifestation seen on presentation. Careful diagnosis, including magnetic resonance imaging or endorectal ultrasound with examination under anesthesia and aggressive medical management, usually with a tumor necrosis factor-alpha, is critical to success. Several options for definitive surgical repair are discussed, including fistulotomy, fibrin glue, anal fistula plug, endorectal advancement flap, and ligation of intersphincteric fistula tract procedure. All suffer from decreased efficacy in patients with Crohn disease. In the presence of active proctitis or perineal disease, no surgical therapy other than drainage of abscesses and loose seton placement is recommended, as iatrogenic injury and poor wound healing are common in that scenario. PMID:24436656

  6. [Surgical managment of retinal detachment].

    Science.gov (United States)

    Haritoglou, C; Wolf, A

    2015-05-01

    The detachment of the neurosensory retina from the underlying retinal pigment epithelium can be related to breaks of the retina allowing vitreous fluid to gain access to the subretinal space, to exudative changes of the choroid such as tumours or inflammatory diseases or to excessive tractional forces exerted by interactions of the collagenous vitreous and the retina. Tractional retinal detachment is usually treated by vitrectomy and exudative detachment can be addressed by treatment of the underlying condition in many cases. In rhegmatogenous retinal detachment two different surgical procedures, vitrectomy and scleral buckling, can be applied for functional and anatomic rehabilitation of our patients. The choice of the surgical procedure is not really standardised and often depends on the experience of the surgeon and other more ocular factors including lens status, the number of retinal breaks, the extent of the detachment and the amount of preexisting PVR. Using both techniques, anatomic success rates of over 90 % can be achieved. Especially in young phakic patients scleral buckling offers the true advantage to prevent the progression of cataract formation requiring cataract extraction and intraocular lens implantation. Therefore, scleral buckling should be considered in selected cases as an alternative surgical option in spite of the very important technical refinements in modern vitrectomy techniques. Georg Thieme Verlag KG Stuttgart · New York.

  7. Our Energy Options.

    Science.gov (United States)

    Meyers, Paul A.; Witt, Frank C.

    Presented is an analysis of alternatives available to the United States in dealing with energy problems. Options explained and evaluated include coal, solar, hydroelectric, nuclear, geothermal, wind, biomass, and energy conservation. The booklet is part of Project APEC (America's Possible Energy Choices), a nationally validated Title IVc project…

  8. Treatment options for hyperthyroidism.

    Science.gov (United States)

    Wartofsky, L

    1996-09-15

    Antithyroid drugs induce sustained remission in only 55% of cases. Radioiodine, the overwhelming choice of specialists, may pose risks, including aggravation of ophthalmopathy. Surgical ablation should be considered only if a highly skilled surgeon is available. Thyroid storm requires aggressive management, and definitive treatment is needed for toxic adenoma or toxic multinodular goiter.

  9. The pros and cons of endovascular and open surgical treatments for patients with acute limb ischemia.

    Science.gov (United States)

    Branco, B C; Montero-Baker, M F; Mills, J L

    2015-06-01

    The present review addresses the pros and cons of the current, wide variety of therapeutic options available for the treatment of acute limb ischemia (ALI). Despite five prospective randomized controlled trials comparing catheter directed thrombolysis and open surgical revascularization, no single treatment strategy can yet be considered optimal for patients with ALI. This report includes 20 years of published data to evaluate the efficacy and safety profile of thrombolytic agents and adjunctive endovascular techniques when compared to open surgical revascularization.

  10. Hereditary spherocytosis and partial splenectomy in children: review of surgical technique and the role of imaging

    Energy Technology Data Exchange (ETDEWEB)

    Hollingsworth, Caroline L. [Duke University Medical Center, Department of Radiology, Box 3808, Durham, NC (United States); Rice, Henry E. [Duke University Medical Center, Department of Surgery, Durham, NC (United States)

    2010-07-15

    The risks associated with total splenectomy, including overwhelming postsplenectomy infection, have led to an interest in the use of partial splenectomy as an alternative surgical option for children with congenital hemolytic anemias and hypersplenism. Partial splenectomy, a procedure designed to remove enough spleen to improve anemia and avoid complications of splenic sequestration while preserving splenic function, has shown promise in children. Radiologic imaging is essential for the preoperative evaluation and postoperative care for children undergoing partial splenectomy and offers a broad range of critical clinical information essential for care of these complex children. It is imperative for radiologists involved in the care of these children to be familiar with the surgical technique and imaging options for these procedures. This article reviews the surgical technique as well as the current status of various diagnostic imaging options used for children undergoing partial splenectomy, highlighting technical aspects and specific clinical information obtained by each modality. (orig.)

  11. Achalasia: Treatment Options Revisited

    Directory of Open Access Journals (Sweden)

    Willemijntje A Hoogerwerf

    2000-01-01

    Full Text Available The aim of all current forms of treatment of achalasia is to enable the patient to eat without disabling symptoms such as dysphagia, regurgitation, coughing or choking. Historically, this has been accomplished by mechanical disruption of the lower esophageal sphincter fibres, either by means of pneumatic dilation (PD or by open surgical myotomy. The addition of laparoscopic myotomy and botulinum toxin (BTX injection to the therapeutic armamentarium has triggered a recent series of reviews to determine the optimal therapeutic approach. Both PD and BTX have excellent short term (less than three months efficacy in the majority of patients. New data have been published that suggest that PD and BTX (with repeat injections can potentially obtain long term efficacy. PD is still considered the first-line treatment by most physicians; its main disadvantage is risk of perforation. BTX injection is evolving as an excellent, safe option for patients who are considered high risk for more invasive procedures. Laparoscopic myotomy with combined antireflux surgery is an increasingly attractive option in younger patients with achalasia, but long term follow-up studies are required to establish its efficacy and the potential for reflux-related sequelae.

  12. Technological Innovations in Surgical Approach for Thyroid Cancer

    Directory of Open Access Journals (Sweden)

    Brian Hung-Hin Lang

    2010-01-01

    Full Text Available Over the last decade, surgeons have witnessed dramatic changes in surgical practice as a result of the introduction of new technological advancement. Some of these changes include refinement of techniques in thyroid cancer surgery. The development of various endoscopic thyroidectomy techniques, the addition of the da Vinci robot, and the use of operative adjuncts in thyroid surgery, such as intraoperative neuromonitoring and quick intraoperative parathyroid hormone, have made thyroid cancer surgery not only safer and better accepted by patients with thyroid cancer but also offer them more surgical treatment options.

  13. Surgical treatment of cranial neuralgias.

    Science.gov (United States)

    Franzini, Angelo; Ferroli, Paolo; Messina, Giuseppe; Broggi, Giovanni

    2010-01-01

    The most common types of cranial neuralgias amenable to surgical therapeutic options are trigeminal neuralgia and glossopharyngeal neuralgia, the former having an approximate incidence of 5/100000 cases per year and the latter of 0.05/100000 cases per year. Surgical therapy of these pathological conditions encompasses several strategies, going from ablative procedures to neurovascular decompression, to radiosurgery. The choice of the most appropriate surgical option (which must be taken into account when all conservative treatments have proven to be unsuccessful) has to take into account many factors, the most important ones being neuroradiological evidence of a neurovascular conflict, severity of symptoms, the age and clinical history of the patient, and the patient's overall medical condition. In this chapter we report our experience with the treatment of trigeminal and glossopharyngeal neuralgia, describing the surgical procedures performed and reviewing the most recent aspects on this subject in the past literature.

  14. Manual of Surgical Instruments

    Directory of Open Access Journals (Sweden)

    Olga Lidia Sánchez Sarría

    2014-10-01

    Full Text Available Surgical instruments are the group of tools used in surgical procedures. They are very expensive and sophisticated. Consequently, a standardized and meticulous care is essential; they should go through the decontamination, cleaning and sterilization process. These instruments are designed in order to provide surgeons with tools that help them to perform a basic surgical procedure; there are multiple variations and the design depends on their function. This paper aims at showing all surgical instruments that can be used in an operating room during surgery and are not generally included in the medical literature.

  15. Radiographic and surgical considerations in arthritis surgery of the hand

    Energy Technology Data Exchange (ETDEWEB)

    Nikac, Violeta; Weissman, Barbara N. [Harvard Medical School, Brigham and Women' s Hospital, Department of Radiology, Boston, MA (United States); Blazar, Philip; Earp, Brandon [Harvard Medical School, Brigham and Women' s Hospital, Department of Orthopedics, Boston, MA (United States)

    2017-05-15

    Indications for hand surgeries include unremitting joint pain, deformity and stiffness, often secondary to arthritis. Several surgical options are available, including arthrodesis (fusion) and joint arthroplasty. Classically arthrodesis is performed in situations with poor bone stock and supporting soft tissues. Arthroplasty is reserved for patients and joints in which preservation of function is important and bone stock and soft tissue support are adequate. In this article we will review various techniques for arthrodesis and arthroplasty, their post-surgical imaging appearance, including key findings important to surgeons, and the findings that indicate post-surgical complications. Radiographs are the mainstay for postoperative evaluation and will be the focus of the imaging portions of this review. Advanced imaging modalities will be reviewed when applicable. (orig.)

  16. Surgical therapy in advanced heart failure.

    Science.gov (United States)

    Vitali, Ettore; Colombo, Tiziano; Fratto, Pasquale; Russo, Claudio; Bruschi, Giuseppe; Frigerio, Maria

    2003-05-08

    Congestive heart failure (CHF) affects about 1% of adults in the United States and is a contributing factor in >250,000 deaths per year. In an increasingly elderly population, the surgical treatment of CHF made great progress during the past 3 decades, consuming enormous health care resources. Heart transplantation is still the most effective therapy for end-stage heart disease, with the 10-year survival rate after transplantation approaching 50%. Efforts to increase the supply of donor organs have failed to improve the shortage, underscoring the crucial need for alternatives to cardiac allotransplantation. Alternative surgical options to end-stage heart transplantation are rapidly evolving. Left ventricular assist devices have been used as a bridge to heart transplantation for patients who otherwise might die awaiting a new heart. There is also continued interest in the use of these devices either to bridge patients to full recovery or to destination therapy, without the need for heart replacement. Left ventricular reconstruction, including the Batista and Dor procedures, along with mitral valve repair, cardiomyoplasty, and extreme coronary artery bypass graft surgery, are now being increasingly performed as alternative options. The history, status, and personal experience of surgical treatment of end-stage heart disease are discussed.

  17. Treatment Options

    Science.gov (United States)

    ... exciting research being done today to generate promising new drugs. These new drugs all work differently than the approved treatments, so ... could include a combination of the old and new drugs. Several of the new drugs are already being ...

  18. Maxillary protraction after surgically assisted maxillary expansion

    Directory of Open Access Journals (Sweden)

    Laurindo Zanco Furquim

    2010-06-01

    Full Text Available This case report describes the orthodontic treatment of a 32-year-old woman with a Class III malocclusion, whose chief compliant was her dentofacial esthetics. The pretreatment lateral cephalometric tracings showed the presence of a Class III dentoskeletal malocclusion with components of maxillary deficiency. After discussion with the patient, the treatment option included surgically assisted rapid maxillary expansion (SARME followed by orthopedic protraction (Sky Hook and Class III elastics. Patient compliance was excellent and satisfactory dentofacial esthetics was achieved after treatment completion.

  19. Surgical Treatment of Facial Paralysis

    OpenAIRE

    Mehta, Ritvik P.

    2009-01-01

    The management of facial paralysis is one of the most complex areas of reconstructive surgery. Given the wide variety of functional and cosmetic deficits in the facial paralysis patient, the reconstructive surgeon requires a thorough understanding of the surgical techniques available to treat this condition. This review article will focus on surgical management of facial paralysis and the treatment options available for acute facial paralysis (2 yr). For acute facial paralysis, the main surgi...

  20. Oesophageal achalasia: an argument for primary surgical management.

    LENUS (Irish Health Repository)

    Leonard, D S

    2009-04-01

    Achalasia is a primary oesophageal motility disorder resulting from damage to the ganglion cells of the myenteric plexus. Impaired relaxation of the lower oesophageal sphincter and aperistalsis causes its cardinal symptoms of dysphagia, chest pain and reflux-type symptoms. Management is somewhat controversial, with options including systemic and local pharmacotherapy, dilatation and oesophagomyotomy. We review the presentation, investigation and management of oesophageal achalasia and make an argument for primary surgical management.

  1. Surgical therapy for benign prostatic hypertrophy/bladder outflow obstruction

    Directory of Open Access Journals (Sweden)

    Nikesh Thiruchelvam

    2014-01-01

    Full Text Available Monopolar transurethral resection of the prostate (TURP with endoscopic electrocautery remains the gold standard surgical technique for benign prostatic hypertrophy (BPH by which all new procedures are compared. We reviewed the current literature, and international urological guidelines and consensus opinion on various surgical options for BPH and present a brief overview of alternative techniques including bipolar TURP, transurethral incision of the prostate, transurethral vaporization of the prostate, laser prostatectomy (with holmium, thulium and potassium titanyl phosphate greenlight lasers and open prostatectomy (with mention of new techniques including laparoscopic and robotic prostatectomy. Emerging, experimental and less established techniques are also described including endoscopic heat generation (transurethral microwave thermotherapy, radiofrequency transurethral needle ablation of the prostate, high intensity focused ultrasound, hot water induced thermotherapy, pulsed electromagnetic radiofrequency, injection therapy (transurethral ethanol ablation and botulinum toxin and mechanical devices (intraprostatic stents and urethral lift devices. Despite a plethora of surgical options, none have realistically improved outcomes in the long-term compared with TURP. Improvements have been made on improving surgical morbidity and time in hospital. Questions remain in this area, including what specific elements of bladder outflow obstruction (BOO result in damage to the urinary tract, how does BPH contribute to BOO and how much prostate volume reduction is necessary to relieve BOO or lower urinary tract symptoms. Given these unanswered questions and the multitude of procedures available, it is clear that appropriate counselling is necessary in all men who undergo BPH surgery.

  2. Surgical therapy for benign prostatic hypertrophy/bladder outflow obstruction.

    Science.gov (United States)

    Thiruchelvam, Nikesh

    2014-04-01

    Monopolar transurethral resection of the prostate (TURP) with endoscopic electrocautery remains the gold standard surgical technique for benign prostatic hypertrophy (BPH) by which all new procedures are compared. We reviewed the current literature, and international urological guidelines and consensus opinion on various surgical options for BPH and present a brief overview of alternative techniques including bipolar TURP, transurethral incision of the prostate, transurethral vaporization of the prostate, laser prostatectomy (with holmium, thulium and potassium titanyl phosphate greenlight lasers) and open prostatectomy (with mention of new techniques including laparoscopic and robotic prostatectomy). Emerging, experimental and less established techniques are also described including endoscopic heat generation (transurethral microwave thermotherapy, radiofrequency transurethral needle ablation of the prostate, high intensity focused ultrasound, hot water induced thermotherapy, pulsed electromagnetic radiofrequency), injection therapy (transurethral ethanol ablation and botulinum toxin) and mechanical devices (intraprostatic stents and urethral lift devices). Despite a plethora of surgical options, none have realistically improved outcomes in the long-term compared with TURP. Improvements have been made on improving surgical morbidity and time in hospital. Questions remain in this area, including what specific elements of bladder outflow obstruction (BOO) result in damage to the urinary tract, how does BPH contribute to BOO and how much prostate volume reduction is necessary to relieve BOO or lower urinary tract symptoms. Given these unanswered questions and the multitude of procedures available, it is clear that appropriate counselling is necessary in all men who undergo BPH surgery.

  3. Retirement Options to Offer College Faculty.

    Science.gov (United States)

    Felicetti, Daniel A.

    1982-01-01

    Retirement options available to institutions are outlined, including early retirement incentives, phased retirement, facilitating consulting opportunities, travel and outplacement services, maintaining community involvement, annuities, and pensions. Suggestions are made for increasing cost-effectiveness and fitting the options to local…

  4. Retirement Options to Offer College Faculty.

    Science.gov (United States)

    Felicetti, Daniel A.

    1982-01-01

    Retirement options available to institutions are outlined, including early retirement incentives, phased retirement, facilitating consulting opportunities, travel and outplacement services, maintaining community involvement, annuities, and pensions. Suggestions are made for increasing cost-effectiveness and fitting the options to local…

  5. Therapeutic options for external genital warts.

    Science.gov (United States)

    Vender, Ronald; Bourcier, Marc; Bhatia, Neal; Lynde, Charles

    2013-12-01

    The primary goal of treatment for external genital warts (EGWs) is to eradicate visible lesions and address symptoms that may accompany them, but it does not address the underlying virus. Left untreated, warts may grow, remain the same, or spontaneously regress as a result of being cleared by the immune system. However, recurrence is common with or without treatment and may occur within 3 months of ending treatment in one-quarter to two-thirds of cases. Treatment options fall into two categories: provider or patient applied. Provider-based therapies include cryotherapy, trichloroacetic and bichloroacetic acid, electrocautery, surgical excision, and CO2 laser therapy. Patient-applied therapy choices include imiquimod and podophyllotoxin. Imiquimod 3.75% is a fairly new, patient-administered topical cream approved by Health Canada in 2011. Another recently approved patient-applied choice is sinecatechins, a green tea extract with immunomodulatory effects. Self-treatment options are attractive to patients because they offer privacy, convenience, and autonomy. In contrast, provider-administered therapies may boast increased precision (especially for areas that are hard to reach) and closer monitoring, which can be augmented by patient education and counseling. Available topical and surgical therapies vary widely in terms of cost, efficacy, adverse effects, dosage/frequency, and length of treatment. No one treatment is ideally suited to all patients or constitutes a gold standard. Treatment regimens must be tailored to each patient's needs and preferences. The health care provider's skills and experience will also factor into treatment decisions. In addition, the size, number, and location of lesions and whether the infection is new or recurrent will help guide the decision process toward the best treatment for a given patient.

  6. Um marcador anatômico e a proposta de tratamento cirúrgico na síndrome do cólon irritável Anatomical marker and a surgical option in the irritable bowel syndrome treatment

    Directory of Open Access Journals (Sweden)

    Júlio César M. Santos Jr

    2006-09-01

    da SCM; 3. O ceco móvel pode ser usado como indicador anatômico da SCI.PURPOSE: Based on the observation that the mobile cecum syndrome (MCS includes symptoms which overlap symptoms of the IBS, our purposes were: to demonstrate the relationship of cause and effect between the mobile cecum and IBS; to evaluate the result of the cecopexia, as method of patients' treatment with irritable bowel syndrome (IBS or with abdominal discomfort of ignored etiology; and to show that the mobile cecum can be considered as the first anatomical marker for IBS. PATIENTS AND METHODS: From 1994 to 2006, 123 patients (109 women and 14 men - median age, 37,7 - ranged 3 to 82 seen in private office had clinical diagnosis of mobile cecum; 103 patients (83,7% had been seen as having irritable bowel syndrome. All patients of this series were programmed for cecopexy. Thirty refused the surgical treatment and 29 are waiting for suitable surgery; both are on clinical follow-up in private office RESULTS: All operated patients (64/52% with fixed cecum followed from 1 to 139 months (median, 21 are well and asymptomatic Among the 58 operated women, 48 (82,7% answered the inquiry about dispareunia; 44(92% had dispareunia. After surgical treatment 89,7% have participated of the inquiry; 52 (96% were without symptoms. The non-operated patients (59/48% followed from 1 to 72 months (median, 16 are with the same complain. CONCLUSION: Based on the results, we conclude that: the topographical investigation of the cecum-ascendent should be made for all the patients with diagnosis of IBS or with functional obscure abdominal symptoms; the patients of that serie with IBS had mobile cecum and they were cured with cecopexy; there is a relationship of cause and effect between mobile cecum and IBS; the mobile cecum can be pointed as the first anatomical marker for SCI; the mobile cecum can be considered as cause of deep dispareunia.

  7. Minimally invasive surgical therapies for benign prostatic hypertrophy: The rise in minimally invasive surgical therapies.

    Science.gov (United States)

    Christidis, Daniel; McGrath, Shannon; Perera, Marlon; Manning, Todd; Bolton, Damien; Lawrentschuk, Nathan

    2017-06-01

    The prevalence of benign prostatic hypertrophy (BPH) causing bothersome lower urinary tract symptoms increases with our ageing population. Treatment of BPH traditionally begins with medical therapy and surgical intervention is then considered for those whose symptoms progress despite treatment. Minimally invasive surgical therapies have been developed as an intermediary in the treatment of BPH with the aim of decreasing the invasiveness of interventions. These therapies also aim to reduce morbidity and dysfunction related to invasive surgical procedures. Multiple treatment options exist in this group including mechanical and thermo-ablative strategies. Emerging therapies utilizing differing technologies range from the established to the experimental. We review the current literature related to these minimally invasive therapies and the evidence of their effectiveness in treating BPH. The role of minimally invasive surgical therapies in the treatment of BPH is still yet to be strongly defined. Given the experimental nature of many of the modalities, further study is required prior to their recommendation as alternatives to invasive surgical therapy. More mature evidence is required for the analysis of durability of effect of these therapies to make robust conclusions of their effectiveness.

  8. Novel operative treatment options.

    Science.gov (United States)

    Ricketts, D N J; Pitts, N B

    2009-01-01

    There are an increasing number of more novel options available for operative intervention. This chapter outlines a series of operative treatment options which are available to the modern clinician to select from once a decision has been made to treat a carious lesion operatively. A series of novel methods of caries removal have been described; including chemomechanical caries removal, air abrasion, sono-abrasion, polymer rotary burs and lasers. There are also novel approaches to ensure complete caries removal and novel approaches for the management of deep caries. A novel question increasingly asked by clinicians is: does all the caries need to be removed? Operative management options here include: therapeutic fissure sealants, ultraconservative caries removal, stepwise excavation and the Hall technique. In conclusion, there is now a growing wealth of evidence that questions the traditional methods of caries removal and restoring the tooth. In parallel, there is a growing movement exploring the merits of therapeutically sealing caries into the tooth. This philosophy is alien to many of today's dentists and, until further randomized controlled trials are carried out in primary care, prudent caution must be exercised with this promising approach. Research is required into techniques which will allow monitoring of sealed caries to detect any rare, but insidious, failures. These novel techniques are an alternative way of managing the later stages of the caries process from a sounder biological basis and have marked potential benefits to patients from treatment, pain and outcome perspectives. Copyright 2009 S. Karger AG, Basel

  9. Mayer-Rokitansky-Kuster-Hauser syndrome: complications, diagnosis and possible treatment options: a review.

    Science.gov (United States)

    Bombard, David S; Mousa, Shaker A

    2014-09-01

    Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome is a disorder in women that presents as Mullerian agenesis. These patients present internal genitalia abnormalities that include the absence of a uterus and the upper two-thirds of the vagina. In this review, current diagnostic methods, accompanying complications (congenital and psychological) and non-surgical and surgical treatments are summarized. Ultrasound and MRI have been the most documented options in MRKH syndrome diagnosis. Many women with MRKH syndrome have renal, skeletal, hearing or cardiac congenital anomalies and increased levels of psychological distress. Non-surgical interventions can be used to create a sexually functional neovagina through vaginal dilation, and surgical interventions provide alternate methods of creating a neovagina. Additionally, vaginal tissue engineering and gene therapy might provide more effective approaches in solving MRKH syndrome.

  10. Guide to Surgical Specialists

    Science.gov (United States)

    ... have expertise in the following areas of responsibility: neonatal surgery (specialized knowledge in the surgical repair of ... and non-operative management of certain types of pain. Common conditions managed by neurologic surgeons include disorders ...

  11. Osteoporosis: Therapeutic Options.

    Science.gov (United States)

    Ivanova, Stefka; Vasileva, Liliya; Ivanova, Stanislava; Peikova, Lily; Obreshkova, Danka

    2015-01-01

    The definition of osteoporosis was originally formulated at a conference of the World Health Organization (WHO) in 1993 as 'a systemic skeletal disease characterized by decreased bone mass and altered micro-architecture of bone tissue, leading to enhanced bone fragility and risk of fractures'. Osteoporosis is characterized by low bone mineral density (BMD) and loss of the structural and bio-mechanical properties that are required to maintain bone homeostasis. This review aims to address the currently available options in prevention and treatment of osteoporosis. Management of osteoporosis includes non-pharmacological treatment - diet rich of calcium and vitamin D, healthy lifestyle, proper exercise plan, and pharmacological therapy. Combination of non-pharmacological and pharmacological treatment options have to be considered for prevention of osteoporosis and minimization of the risk of fractures. Given the heterogeneity of osteoporosis syndrome and lack of significant number of comparative studies, the choice of a pharmacological agents should be individualized.

  12. Osteoporosis: Therapeutic Options

    Directory of Open Access Journals (Sweden)

    Ivanova Stefka

    2015-12-01

    Full Text Available The definition of osteoporosis was originally formulated at a conference of the World Health Organization (WHO in 1993 as ‘a systemic skeletal disease characterized by decreased bone mass and altered micro-architecture of bone tissue, leading to enhanced bone fragility and risk of fractures’. Osteoporosis is characterized by low bone mineral density (BMD and loss of the structural and bio-mechanical properties that are required to maintain bone homeostasis. This review aims to address the currently available options in prevention and treatment of osteoporosis. Management of osteoporosis includes non-pharmacological treatment - diet rich of calcium and vitamin D, healthy lifestyle, proper exercise plan, and pharmacological therapy. Combination of non-pharmacological and pharmacological treatment options have to be considered for prevention of osteoporosis and minimization of the risk of fractures. Given the heterogeneity of osteoporosis syndrome and lack of significant number of comparative studies, the choice of a pharmacological agents should be individualized.

  13. Bounds for Asian basket options

    Science.gov (United States)

    Deelstra, Griselda; Diallo, Ibrahima; Vanmaele, Michèle

    2008-09-01

    In this paper we propose pricing bounds for European-style discrete arithmetic Asian basket options in a Black and Scholes framework. We start from methods used for basket options and Asian options. First, we use the general approach for deriving upper and lower bounds for stop-loss premia of sums of non-independent random variables as in Kaas et al. [Upper and lower bounds for sums of random variables, Insurance Math. Econom. 27 (2000) 151-168] or Dhaene et al. [The concept of comonotonicity in actuarial science and finance: theory, Insurance Math. Econom. 31(1) (2002) 3-33]. We generalize the methods in Deelstra et al. [Pricing of arithmetic basket options by conditioning, Insurance Math. Econom. 34 (2004) 55-57] and Vanmaele et al. [Bounds for the price of discrete sampled arithmetic Asian options, J. Comput. Appl. Math. 185(1) (2006) 51-90]. Afterwards we show how to derive an analytical closed-form expression for a lower bound in the non-comonotonic case. Finally, we derive upper bounds for Asian basket options by applying techniques as in Thompson [Fast narrow bounds on the value of Asian options, Working Paper, University of Cambridge, 1999] and Lord [Partially exact and bounded approximations for arithmetic Asian options, J. Comput. Finance 10 (2) (2006) 1-52]. Numerical results are included and on the basis of our numerical tests, we explain which method we recommend depending on moneyness and time-to-maturity.

  14. 小儿肾血管性高血压的外科治疗(包括6例自体肾移植术)%Surgical Treatment of Renovascular Hypertension in Children: Including 6 Cases of Renal Autotransplantation

    Institute of Scientific and Technical Information of China (English)

    李衷初; 余亚雄

    1982-01-01

    @@ 近十余年来,对肾血管性高血压的外科治疗有较大的进展,国内外文献报导亦渐见增多,但有关小儿病例的报告尚少.我院自1976~1981年间共收治9例,均作了腹主动脉、肾动脉造影术,诊断明确.本文重点介绍与讨论自体肾移植术的疗效与评价.%From 1976 to 1981,9 cases of renovas,cular hypertension in children were treated surgically.The etiology of renal artery steno sis in this series consisted of congenital abhor real renal artery(2 cases),fibromuscular dyspla sin(1 case)and Takayasu's arteritis(6 cases).The diagnosis was made by the aorto-reno gram in each case and was proved by the intervention and the pathological examination.Except those 3 cases,the others were treated by nephrectomy,of which one case died from unknown cause one year after operation,6 cases had undergone the renal autotransplan tation.The authors reviewed 13 pediatric cases(including this series)reported in Chinese literature(<12 years old),who were treated by renal autotransplantation with cure rate 84.6%(normotension on no medication).The authors indicated that the results of the renal autotrancplantation were much better than that of the revascularization techni ques with the following advantages:(1)the success rate was higher;(2)it provided excellent exposure for the vascular anastomosis in the iliac fossa;(3)the blood pressure in internal itiac artery was generally higher than that of the renal artery so that the blood pressure in transplanted kidney could be elevated after operation,and(4)it seemed more profitable in cases with renal artery stenosis by Takayasu's arteritis,because of no apparent stenosis:in the internal iliac arteries,which was observed from the arteriograms in the papers reported by others and us.

  15. A review of surgical repair methods and patient outcomes for gluteal tendon tears.

    Science.gov (United States)

    Ebert, Jay R; Bucher, Thomas A; Ball, Simon V; Janes, Gregory C

    2015-01-01

    Advanced hip imaging and surgical findings have demonstrated that a common cause of greater trochanteric pain syndrome (GTPS) is gluteal tendon tears. Conservative measures are initially employed to treat GTPS and manage gluteal tears, though patients frequently undergo multiple courses of non-operative treatment with only temporary pain relief. Therefore, a number of surgical treatment options for recalcitrant GTPS associated with gluteal tears have been reported. These have included open trans-osseous or bone anchored suture techniques, endoscopic methods and the use of tendon augmentation for repair reinforcement. This review describes the anatomy, pathophysiology and clinical presentation of gluteal tendon tears. Surgical techniques and patient reported outcomes are presented. This review demonstrates that surgical repair can result in improved patient outcomes, irrespective of tear aetiology, and suggests that the patient with "trochanteric bursitis" should be carefully assessed as newer surgical techniques show promise for a condition that historically has been managed conservatively.

  16. Treatment of aging vocal folds: surgical approaches.

    Science.gov (United States)

    Seino, Yutomo; Allen, Jacqui E

    2014-12-01

    Aging may affect the voice through either physiological or pathological changes. Globally society is aging and the working lifetime is extending. Increasing numbers of elderly will present with voice issues. This review examines current thinking regarding surgical treatment of the aging voice. The mainstay of surgical treatment remains injection laryngoplasty and medialization thyroplasty. In-office injection laryngoplasty is increasingly common. Data suggest that patients with vocal fold atrophy do not achieve as much benefit from augmentation treatments as other causes of glottal incompetence. In addition the timing of injection laryngoplasty may influence the rate of subsequent medialization thyroplasty. Disease-specific treatments can provide some benefit to voice, such as deep brain stimulation in Parkinson's disease. Novel treatments including growth factor therapy are entering clinical practice and will provide new options for the clinician in future. Voice disorders affect approximately 20% of the elderly population. Causes include neurologic, malignant, iatrogenic and benign vocal fold disorders. These should be ruled out before accepting dysphonia is age-related in nature. Treatment should be specific to recognized vocal disorders but may also address physiologic changes in the glottis. Injection laryngoplasty and thyroplasty remain effective options for treating glottal incompetence but novel therapies are showing promising results.

  17. Novel preventive treatment options

    DEFF Research Database (Denmark)

    Longbottom, C; Ekstrand, K; Zero, D

    2009-01-01

    to that point. These include: approximal sealants; fluoride applications, including slow-release devices; measures to help remineralize demineralized tissue, including 3 different methods of delivering amorphous calcium phosphate; measures to help modify the biofilm to reduce the cariogenic challenge, including...... ozone therapy and probiotics; measures to increase enamel resistance to demineralization, including laser treatment of enamel, and a novel 'hybrid' technique for the treatment of primary molar caries which involves 'overlapping' of secondary and tertiary prevention--the Hall technique. Although many...... of these techniques show considerable promise and dentists should be aware of these developments and follow their progress, the evidence for each of these novel preventive treatment options is currently insufficient to make widespread recommendations. Changes in dental practice should be explored to see how oral...

  18. Talking with the Doctor about Breast Surgery Options

    Science.gov (United States)

    ... also President-Elect of the American Society of Breast Surgeons. Q: What surgical options do women diagnosed with early- ... generally not used after mastectomy for early-stage breast cancer. Q: What are the advantages and disadvantages for having ...

  19. CONDITIONAL ASIAN OPTIONS

    OpenAIRE

    Runhuan Feng; Volkmer, Hans W.

    2015-01-01

    Conditional Asian options are recent market innovations, which offer cheaper and long-dated alternatives to regular Asian options. In contrast with payoffs from regular Asian options which are based on average asset prices, the payoffs from conditional Asian options are determined only by average prices above certain threshold. Due to the limited inclusion of prices, conditional Asian options further reduce the volatility in the payoffs than their regular counterparts and have been promoted i...

  20. Surgical Navigation

    DEFF Research Database (Denmark)

    Azarmehr, Iman; Stokbro, Kasper; Bell, R. Bryan

    2017-01-01

    were identified in the field of traumatology. Treatment of complex orbital fractures was considerably improved by the use of SN compared with traditionally treated control groups. Conclusions: SN seems to be a very promising addition to the surgical toolkit. Planning details of the surgical procedure...... in a 3-dimensional virtual environment and execution with real-time guidance can significantly improve precision. Among factors to be considered are the financial investments necessary and the learning curve....

  1. Analysis of Options Contract, Option Pricing in Agricultural Products

    Directory of Open Access Journals (Sweden)

    H. Tamidy

    2016-03-01

    Full Text Available Introduction: Risk is an essential component in the production and sale of agricultural products. Due to the nature of agricultural products, the people who act in this area including farmers and businesspersons encounter unpredictable fluctuations of prices. On the other hand, the firms that process agricultural products also face fluctuation of price of agricultural inputs. Given that the Canola is considered as one of the inputs of product processing factories, control of unpredictable fluctuations of the price of this product would increase the possibility of correct decision making for farmers and managers of food processing industries. The best available tool for control and management of the price risk is the use of future markets and options. It is evident that the pricing is the main pillar in every trade. Therefore, offering a fair price for the options will be very important. In fact, options trading in the options market create cost insurance stopped. In this way, which can reduce the risks of deflation created in the future, if the person entitled to the benefits of the price increase occurs in the future. Unlike the futures, market where the seller had to deliver the product on time, in the options market, there is no such compulsion. In addition, this is one of the strengths of this option contract, because if there is not enough product for delivery to the futures market as result of chilling, in due course, the farmers suffer, but in the options market there will be a loss. In this study, the setup options of rape, as a product, as well as inputs has been paid for industry. Materials and Methods: In this section. The selection criteria of the disposal of asset base for valuation of European put options and call option is been introduced. That for obtain this purpose, some characteristics of the goods must considered: 1-Unpredictable fluctuations price of underlying asset 2 -large underlying asset cash market 3- The possibility

  2. [Reconstruction options after extensive ablation of the mouth].

    Science.gov (United States)

    Benazzo, M; Bertino, G; Gatti, P; Spasiano, R; Capelli, M

    2005-01-01

    Surgical treatment of the advanced tumors of the oral cavity determines challenging anatomical and functional defects of the involved districts. The aim of our study was to supply reconstructive guidelines for the surgical treatment of the tumors of the oral cavity. Indications and conclusions were drawn following a retrospective review of data of 76 patients undergone oral and oromandibular reconstruction with either pedicled (17) or free flaps (59). The analysis included for both groups the registration of type of selected flap, success rate, early and late complications rate, functional results at 6 months to 1 year, ie oral feeding recovery and quality of oral feeding. The results obtained point out that the anatomical and functional complexity of the oral cavity needs a wide armamentarium of surgical techniques and skills at prompt disposal of the reconstructive surgeon. Free flaps should be kept in mind as the first choice for middle-sized to wide defects. An extended range of options in this group are available, and the selection should be based on type and extent of the defect following surgical oncologic ablation, but also on the surgeon experience itself. Pedicled flaps should be alternatively selected on case of general, vascular or local contraindications to major free flaps surgery, for the higher complications rate and worse functional outcomes to be faced.

  3. Thoracolumbar Fractures with Spinal Cord Injury Surgical Options and Efficacy Analysis%胸腰段骨折伴脊髓损伤的术式选择以及疗效分析

    Institute of Scientific and Technical Information of China (English)

    张雷炎

    2011-01-01

    Objective:To investigate the thoracolumbar fracture with spinal cord injury.Mehtods:thoracolumbar fractures with spinal cord injury in 39 patients,all with anterior,poaterior,and combined surgical approach before and after the method of surgical treatment.Single segment of which involved 35 cases,T11 5cases,T12 15 cases,L1 15 cases.4 cases involved double fault,T11 and T12 3 cases,T12 L1 1case.Results:All of the spinal cord have received a full and effective decompression,sinal fixation has beeb good ,with an average follow-up of 24 months,the bone graft at the fusion well,and 1 patient had a kyphosis,with 2cases pedicle screw loose,injured vertebra from preoperative (1.6±0.3)cm to apostoperative recovery (3.0±0.3)cm,cobb angle from preoperative(27±2)°restored to (40±3)°.Conclusion :In thoracolumabar fracture with surgical treatment of spinal cord injury,anterior and posterior were effective treatment methods,and advantages and disadvantages.%目的:探讨胸腰段骨折伴脊髓损伤的治疗.方法:胸腰段骨折伴脊髓损伤患者39例,全部均采用前路、后路及前后联合手术入路的方法行手术治疗.其中单节段受累35例,T11 5例、T12 15例、L1 15例.双节断受累4例、T11和T12 3例、T12 L1 1例.结果:所有的脊髓均获得了充分的有效的减压,脊柱得到了良好的内固定,平均随访了24个月,植骨处融合良好,有1例出现了脊拄后凸畸形,有2例出现椎弓根螺钉松动,伤椎由术前的(1.6±0.3)cm恢复到术后的(3.0±0.3)cm,cobb角由术前的(27±2)°恢复到(40±3)°结论:胸腰段骨折伴脊髓损伤的手术治疗中,前后路均为有效的方法,且各有优缺点.

  4. Two parallel, pragmatic, UK multicentre, randomised controlled trials comparing surgical options for upper compartment (vault or uterine) pelvic organ prolapse (the VUE Study): study protocol for a randomised controlled trial.

    Science.gov (United States)

    Glazener, Cathryn; Constable, Lynda; Hemming, Christine; Breeman, Suzanne; Elders, Andrew; Cooper, Kevin; Freeman, Robert; Smith, Anthony R B; Hagen, Suzanne; McDonald, Alison; McPherson, Gladys; Montgomery, Isobel; Kilonzo, Mary; Boyers, Dwayne; Goulao, Beatriz; Norrie, John

    2016-09-08

    One in three women who have a prolapse operation will go on to have another operation, though not necessarily in the same compartment. Surgery can result in greater impairment of quality of life than the original prolapse itself (such as the development of new-onset urinary incontinence, or prolapse at a different site). Anterior and posterior prolapse surgery is most common (90 % of operations), but around 43 % of women also have a uterine (34 %) or vault (9 %) procedure at the same time. There is not enough evidence from randomised controlled trials (RCTs) to guide management of vault or uterine prolapse. The Vault or Uterine prolapse surgery Evaluation (VUE) study aims to assess the surgical management of upper compartment pelvic organ prolapse (POP) in terms of clinical effectiveness, cost-effectiveness and adverse events. VUE is two parallel, pragmatic, UK multicentre, RCTs (Uterine Trial and Vault Trial). Eligible for inclusion are women with vault or uterine prolapse: requiring a surgical procedure, suitable for randomisation and willing to be randomised. Randomisation will be computer-allocated separately for each trial, minimised on: requiring concomitant anterior and/or posterior POP surgery or not, concomitant incontinence surgery or not, age (under 60 years or 60 years and older) and surgeon. Participants will be randomly assigned, with equal probability to intervention or control arms in either the Uterine Trial or the Vault Trial. Uterine Trial participants will receive either a vaginal hysterectomy or a uterine preservation procedure. Vault Trial participants will receive either a vaginal sacrospinous fixation or an abdominal sacrocolpopexy. Participants will be followed up by postal questionnaires (6 months post surgery and 12 months post randomisation) and also reviewed in clinic 12 months post surgery. The primary outcome is the participant-reported Pelvic Organ Prolapse Symptom Score (POP-SS) at 12 months post randomisation

  5. Management options for women with uterine prolapse interested in uterine preservation.

    Science.gov (United States)

    Kow, Nathan; Goldman, Howard B; Ridgeway, Beri

    2013-10-01

    A variety of nonsurgical and surgical treatment options exist for the treatment of pelvic organ prolapse. While nonsurgical management is often selected as first-line treatment, many women eventually elect to undergo surgical management. Traditionally, prolapse repair often includes concomitant hysterectomy; however, women increasingly desire uterine preservation for a myriad of reasons. Multiple surgical procedures have been described to correct apical prolapse while preserving the uterus. Many studies suggest similar anatomic and functional outcomes compared to prolapse procedures with concomitant hysterectomy. Potential benefits include decreased operative time and avoidance of hysterectomy-specific complications, although there are several unique issues to consider if the uterus is retained. Surgeons must provide adequate counseling and preoperative evaluation before proceeding with uterine preservation.

  6. Surgical management of tricuspid valve endocarditis in the current era: A review.

    Science.gov (United States)

    Yong, Matthew S; Coffey, Sean; Prendergast, Bernard D; Marasco, Silvana F; Zimmet, Adam D; McGiffin, David C; Saxena, Pankaj

    2016-01-01

    The incidence of isolated tricuspid valve infective endocarditis is increasing. Medical management is the mainstay of treatment but surgical intervention is required in a subset of patients. Surgical treatment options include valve excision and replacement or valve reconstruction. We searched PubMed and the Cochrane library to identify articles to be included in this review of surgical outcomes. References of selected articles were crosschecked for other relevant studies. Surgical management of tricuspid valve endocarditis can be achieved with satisfactory outcomes. However, the optimal indication and timing of surgery remain unclear, and the frequent association with intravenous drug use complicates management. Repair techniques are preferable though there is no clear evidence supporting one method over another.

  7. Surgical versus non-surgical management for pleural empyema.

    Science.gov (United States)

    Redden, Mark D; Chin, Tze Yang; van Driel, Mieke L

    2017-03-17

    Empyema refers to pus in the pleural space, commonly due to adjacent pneumonia, chest wall injury, or a complication of thoracic surgery. A range of therapeutic options are available for its management, ranging from percutaneous aspiration and intercostal drainage to video-assisted thoracoscopic surgery (VATS) or thoracotomy drainage. Intrapleural fibrinolytics may also be administered following intercostal drain insertion to facilitate pleural drainage. There is currently a lack of consensus regarding optimal treatment. To assess the effectiveness and safety of surgical versus non-surgical treatments for complicated parapneumonic effusion or pleural empyema. We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (2016, Issue 9), MEDLINE (Ebscohost) (1946 to July week 3 2013, July 2015 to October 2016) and MEDLINE (Ovid) (1 May 2013 to July week 1 2015), Embase (2010 to October 2016), CINAHL (1981 to October 2016) and LILACS (1982 to October 2016) on 20 October 2016. We searched ClinicalTrials.gov and WHO International Clinical Trials Registry Platform for ongoing studies (December 2016). Randomised controlled trials that compared a surgical with a non-surgical method of management for all age groups with pleural empyema. Two review authors independently assessed trials for inclusion and risk of bias, extracted data, and checked the data for accuracy. We contacted trial authors for additional information. We assessed the quality of the evidence using the GRADE approach. We included eight randomised controlled trials with a total of 391 participants. Six trials focused on children and two on adults. Trials compared tube thoracostomy drainage (non-surgical), with or without intrapleural fibrinolytics, to either VATS or thoracotomy (surgical) for the management of pleural empyema. Assessment of risk of bias for the included studies was generally unclear for selection and blinding but low for attrition and reporting bias. Data analyses compared

  8. The Surgical Treatment of Mycetoma.

    Science.gov (United States)

    Suleiman, Suleiman Hussein; Wadaella, El Sammani; Fahal, Ahmed Hassan

    2016-06-01

    Surgical intervention is an integral component in the diagnosis and management of mycetoma. Surgical treatment is indicated for small, localised lesions and massive lesions to reduce the mycetoma load and to enable better response to medical therapy. It is also a life-saving procedure in patients with massive disease and sepsis. Surgical options for mycetoma treatment range from a wide local surgical excision to repetitive debridement excisions to amputation of the affected part. Adequate anaesthesia, a bloodless field, wide local excision with adequate safety margins in a suitable surgical facility, and expert surgeons are mandatory to achieve the best surgical outcome. Surgical intervention in mycetoma is associated with considerable morbidity, deformities, and disabilities, particularly in advanced disease. These complications can be reduced by educating patients to seek medical advice earlier when the lesion is small, localised, and amenable to surgery. There is no evidence for mycetoma hospital cross infection. This communication is based on the authors' experience in managing over 7,200 mycetoma patients treated at the Mycetoma Research Centre, University of Khartoum, Sudan.

  9. The Surgical Treatment of Mycetoma.

    Directory of Open Access Journals (Sweden)

    Suleiman Hussein Suleiman

    2016-06-01

    Full Text Available Surgical intervention is an integral component in the diagnosis and management of mycetoma. Surgical treatment is indicated for small, localised lesions and massive lesions to reduce the mycetoma load and to enable better response to medical therapy. It is also a life-saving procedure in patients with massive disease and sepsis. Surgical options for mycetoma treatment range from a wide local surgical excision to repetitive debridement excisions to amputation of the affected part. Adequate anaesthesia, a bloodless field, wide local excision with adequate safety margins in a suitable surgical facility, and expert surgeons are mandatory to achieve the best surgical outcome. Surgical intervention in mycetoma is associated with considerable morbidity, deformities, and disabilities, particularly in advanced disease. These complications can be reduced by educating patients to seek medical advice earlier when the lesion is small, localised, and amenable to surgery. There is no evidence for mycetoma hospital cross infection. This communication is based on the authors' experience in managing over 7,200 mycetoma patients treated at the Mycetoma Research Centre, University of Khartoum, Sudan.

  10. Renal transplantation and polycystic: surgical considerations.

    Science.gov (United States)

    Rodríguez-Faba, O; Breda, A; Villavicencio, H

    2014-01-01

    The indication and timing of nephrectomy in patients with autosomal dominant polycystic kidney disease (ADPKD) remain controversial, especially in patients who are candidates to renal transplantation (RT). The main surgical options such as unilateral vs. bilateral nephrectomy, nephrectomy before vs. after RT, or simultaneous nephrectomy and transplantation, are herein discussed. Evidence acquisition of the best surgical management available for ADPKD in the context of kidney transplantation. Systematic literature review in PubMed from 1978 to 2013 was conducted. Articles selected included:randomized controlled trials and cohort studies. Furthermore, well designed ADPKD reviews were considered for this study. Laparoscopic nephrectomy in ADPKD is a safe procedure with an acceptable complication rate. Unilateral nephrectomy has advantages over the bilateral one regarding the perioperative complication rate. Although the timing of nephrectomy is controversial, it seems that simultaneous nephrectomy and renal transplantation does not increase surgical morbidity neither affect graft survival. Simultaneous nephrectomy and RT appears to be an acceptable alternative to conventional two-stage procedure without any increased morbidity, in the context of ADPKD. Furthermore, laparoscopic nephrectomy performed in experienced centres is a safe alternative to conventional approach. Copyright © 2013 AEU. Published by Elsevier Espana. All rights reserved.

  11. SURGICAL TREATMENT OF METACARPAL SYNOSTOSIS IN CHILDREN

    Directory of Open Access Journals (Sweden)

    A. V. Zaletina

    2012-01-01

    Full Text Available Objective: to develop the surgical treatment of patients with congenital metacarpal synostosis. Material and methods. 65 operations were performed in 58 children. with congenital metacarpal synostosis. Surgical intervention was determined by the localization of congenital metacarpal synostosis and the presence of concomitant deformities. Results. Excellent and good results were observed in 69,4% (33 hands cases, satisfactory - in 30,6% (15 hands, unsatisfactory results were not obtained. At the same time excellent results were obtained in patients with less severe variants of metacarpal synostosis, good treatment results were observed in children with more severe associated abnormalities, as well as in cases where the correction is not performed metacarpal shortening. Overall, the results were significantly (p <0,05 better after application of advanced methods, including correction of all components of the strain. Satisfactory results were found out in patients with severe comorbidity, a total fusion of the metacarpal bones and fingers, the total PPS. Conclusions. Surgical treatment options for all congenital metacarpal synostosis should be individualized and be concluded in the performance of bone and plastic surgery to remove metacarpal synostosis and related deformities.

  12. Is surgical intervention more effective than non-surgical treatment for carpal tunnel syndrome? a systematic review

    Directory of Open Access Journals (Sweden)

    Shi Qiyun

    2011-04-01

    Full Text Available Abstract Background Carpal tunnel syndrome is a common disorder in hand surgery practice. Both surgical and conservative interventions are utilized for the carpal tunnel syndrome. Although certain indications would specifically indicate the need for surgery, there is a spectrum of patients for whom either treatment option might be selected. The purpose of this systematic review was to compare the efficacy of surgical treatment of carpal tunnel syndrome with conservative treatment Methods We included all controlled trials written in English, attempting to compare any surgical interventions with any conservative therapies. We searched Cochrane Central Register of Controlled Trials (The Cochrane Library Issue 1, 2010, MEDLINE (1980 to June 2010, EMBASE (1980 to June 2010, PEDro (searched in June 2010, international guidelines, computer searches based on key words and reference lists of articles. Two reviewers performed study selection, assessment of methodological quality and data extraction independently of each other. Weighted mean differences and 95% confidence intervals for patient self-reported functional and symptom questionnaires were calculated. Relative risk (RR and 95% confidence intervals for electrophysiological studies and complication were also calculated. Results We assessed seven studies in this review including 5 RCTs and 2 controlled trials. The methodological quality of the trials ranged from moderate to high. The weighted mean difference demonstrated a larger treatment benefit for surgical intervention compared to non surgical intervention at six months for functional status 0.35( 95% CI 0.22, 0.47 and symptom severity 0.43 (95% CI 0.29, 0.57. There were no statistically significant difference between the intervention options at 3 months but there was a benefit in favor of surgery in terms of function and symptom relief at 12 months ( 0.35, 95% CI 0.15, 0.55 and 0.37, 95% CI 0.19 to 0.56. The RR for secondary outcomes of normal

  13. Mixed waste management options

    Energy Technology Data Exchange (ETDEWEB)

    Owens, C.B.; Kirner, N.P. [EG and G Idaho, Inc., Idaho Falls, ID (United States). Idaho National Engineering Lab.

    1991-12-31

    Disposal fees for mixed waste at proposed commercial disposal sites have been estimated to be $15,000 to $40,000 per cubit foot. If such high disposal fees are imposed, generators may be willing to apply extraordinary treatment or regulatory approaches to properly dispose of their mixed waste. This paper explores the feasibility of several waste management scenarios and attempts to answer the question: Can mixed waste be managed out of existence? Existing data on commercially generated mixed waste streams are used to identify the realm of mixed waste known to be generated. Each waste stream is evaluated from both a regulatory and technical perspective in order to convert the waste into a strictly low-level radioactive or a hazardous waste. Alternative regulatory approaches evaluated in this paper include a delisting petition, no migration petition, and a treatability variance. For each waste stream, potentially available treatment options are identified that could lead to these variances. Waste minimization methodology and storage for decay are also considered. Economic feasibility of each option is discussed broadly.

  14. Treatment Options for Myopia

    Science.gov (United States)

    Gwiazda, Jane

    2009-01-01

    Myopia is a significant public health problem and its prevalence may be increasing over time. The main treatment options of single vision spectacle lenses, contact lenses, and refractive surgery do not slow the accompanying eye growth or retard the physiological changes associated with excessive axial elongation. High myopia is a predisposing factor for retinal detachment, myopic retinopathy, and glaucoma, contributing to loss of vision and blindness. The high prevalence of myopia and its prominence as a public health problem emphasize the importance of finding effective treatments that slow myopia progression and axial elongation. Treatments that have been investigated include various types of spectacle lenses and contact lenses, as well as pharmaceutical agents such as atropine and pirenzepine. The bulk of evidence from well-conducted studies shows that overall, most therapies for myopia have small treatment benefits that last for a relatively short period of time or have significant side effects. Some therapies may be more effective in subsets of myopic children. This review of treatment options for myopia will emphasize recent results from well-designed clinical studies and will suggest possible future therapies. PMID:19390466

  15. New options in the management of tendinopathy

    Directory of Open Access Journals (Sweden)

    Nicola Maffulli

    2010-03-01

    Full Text Available Nicola Maffulli1, Umile Giuseppe Longo2, Mattia Loppini2, Filippo Spiezia2, Vincenzo Denaro21Centre for Sports and Exercise Medicine, Queen Mary University of London, Barts and The London School of Medicine and Dentistry, Mile End Hospital, London, England; 2Department of Orthopedic and Trauma Surgery, Campus Biomedico University, Rome, ItalyAbstract: Tendon injuries can be acute or chronic, and caused by intrinsic or extrinsic factors, either alone or in combination. Tendinopathies are a common cause of disability in occupational medicine and account for a substantial proportion of overuse injuries in sports. Tendinopathy is essentially a failed healing response, with haphazard proliferation of tenocytes, abnormalities in tenocytes, with disruption of collagen fibres and subsequent increase in noncollagenous matrix. The scientific evidence base for managing tendinopathies is limited. What may appear clinically as an “acute tendinopathy” is actually a well advanced failure of a chronic healing response in which there is neither histologic nor biochemical evidence of inflammation. In this review we report the new options for the management of tendinopathy, including eccentric exercises, extracorporeal shockwave therapy, injections (intratendinous injections of corticosteroids, aprotinin, polidocanol platelet-rich plasma, autologous blood injection, high-volume injections and surgery. Open surgery aims to excise fibrotic adhesions, remove areas of failed healing and make multiple longitudinal incisions in the tendon to detect intratendinous lesions, and to restore vascularity and possibly stimulate the remaining viable cells to initiate cell matrix response and healing. New surgical techniques aim to disrupt the abnormal neoinnervation to interfere with the pain sensation caused by tendinopathy. These procedures are intrinsically different from the classical ones in present use, because they do not attempt to address directly the pathologic

  16. NUMERICAL ANALYSIS ON BINOMIAL TREE METHODS FOR AMERICAN LOOKBACK OPTIONS

    Institute of Scientific and Technical Information of China (English)

    戴民

    2001-01-01

    Lookback options are path-dependent options. In general, the binomial tree methods,as the most popular approaches to pricing options, involve a path dependent variable as well as the underlying asset price for lookback options. However, for floating strike lookback options, a single-state variable binomial tree method can be constructed. This paper is devoted to the convergence analysis of the single-state binomial tree methods both for discretely and continuously monitored American floating strike lookback options. We also investigate some properties of such options, including effects of expiration date, interest rate and dividend yield on options prices,properties of optimal exercise boundaries and so on.

  17. Treatment options for polycystic ovary syndrome

    Directory of Open Access Journals (Sweden)

    Ahmed Badawy

    2011-02-01

    Full Text Available Ahmed Badawy1 Abubaker Elnashar21Department of Obstetrics and Gynecology, Mansoura University, Mansoura, Egypt; 2Department of Obstetrics and Gynecology, Benha University, Benha, EgyptAbstract: Polycystic ovary syndrome (PCOS is the most common endocrine disorder in women. The clinical manifestation of PCOS varies from a mild menstrual disorder to severe disturbance of reproductive and metabolic functions. Management of women with PCOS depends on the symptoms. These could be ovulatory dysfunction-related infertility, menstrual disorders, or androgen-related symptoms. Weight loss improves the endocrine profile and increases the likelihood of ovulation and pregnancy. Normalization of menstrual cycles and ovulation could occur with modest weight loss as little as 5% of the initial weight. The treatment of obesity includes modifications in lifestyle (diet and exercise and medical and surgical treatment. In PCOS, anovulation relates to low follicle-stimulating hormone concentrations and the arrest of antral follicle growth in the final stages of maturation. This can be treated with medications such as clomiphene citrate, tamoxifen, aromatase inhibitors, metformin, glucocorticoids, or gonadotropins or surgically by laparoscopic ovarian drilling. In vitro fertilization will remain the last option to achieve pregnancy when others fail. Chronic anovulation over a long period of time is also associated with an increased risk of endometrial hyperplasia and carcinoma, which should be seriously investigated and treated. There are androgenic symptoms that will vary from patient to patient, such as hirsutism, acne, and/or alopecia. These are troublesome presentations to the patients and require adequate treatment. Alternative medicine has been emerging as one of the commonly practiced medicines for different health problems, including PCOS. This review underlines the contribution to the treatment of different symptoms.Keywords: treatment, polycystic ovary

  18. Therapeutic options for intermediate-advanced hepatocellular carcinoma

    Institute of Scientific and Technical Information of China (English)

    Zong-Ming Zhang; Jin-Xing Guo; Zi-Chao Zhang; Nan Jiang; Zhen-Ya Zhang; Li-Jie Pan

    2011-01-01

    Hepatocellular carcinoma (HCC) is one of the most common malignancies, ranking the sixth in the world, with 55% of cases occurring in China. Usually, patients withHCC did not present until the late stage of the disease,thus limiting their therapeutic options. Although surgical resection is a potentially curative modality for HCC,most patients with intermediate-advanced HCC are not suitable candidates. The current therapeutic modalities for intermediate-advanced HCC include: (1) surgical procedures,such as radical resection, palliative resection,intraoperative radiofrequency ablation or cryosurgical ablation, intraoperative hepatic artery and portal vein chemotherapeutic pump placement, two-stage hepatectomy and livertransplantation; (2) interventional treatment,such as transcatheter arterial chemoembolization,portal vein embolization and image-guided locoregional therapies; and (3) molecularly targeted therapies. So far, how to choose the therapeutic modalities remains controversial. Surgeons are faced with the challenge of providing the most appropriate treatment for patients with intermediate-advanced HCC. This review focuses on the optional therapeutic modalities for intermediateadvanced HCC.

  19. Surgical ethics: surgical virtue and more.

    Science.gov (United States)

    Vercler, Christian J

    2015-01-01

    The encounter between a patient and her surgeon is unique for several reasons. The surgeon inflicts pain upon a patient for the patient's own good. An operative intervention is irreducibly personal, such that the decisions about and performance of operations are inseparable from the idiosyncrasies of the individual surgeon. Furthermore, there is a chasm of knowledge between the patient and surgeon that is difficult to cross. Hence, training in the discipline of surgery includes the inculcation of certain virtues and practices to safeguard against abuses of this relationship and to make sure that the best interests of the patient are prioritized. The stories in this issue are evidence that in contemporary practice this is not quite enough, as surgeons reflect on instances they felt were ethically challenging. Common themes include the difficulty in communicating surgical uncertainty, patient-surgeon relationships, ethical issues in surgical training, and the impact of the technological imperative on caring for dying patients.

  20. Mission design options for human Mars missions

    Science.gov (United States)

    Wooster, Paul D.; Braun, Robert D.; Ahn, Jaemyung; Putnam, Zachary R.

    Trajectory options for conjunction-class human Mars missions are examined, including crewed Earth-Mars trajectories with the option for abort to Earth, with the intent of serving as a resource for mission designers. An analysis of the impact of Earth and Mars entry velocities on aeroassist systems is included, and constraints are suggested for interplanetary trajectories based upon aeroassist system capabilities.

  1. [Quadriceps tendon insufficiency and rupture : Treatment options in total knee arthroplasty].

    Science.gov (United States)

    Thiele, K; von Roth, P; Pfitzner, T; Preininger, B; Perka, C

    2016-05-01

    Quadriceps tendon injuries and insufficiencies in total knee arthroplasty are rare, but are followed by a devastating complication that left untreated leads to a complete loss of function of the knee. This review article summarizes the functional anatomy, risk factors, and the prevalence and diagnosis of quadriceps tendon injuries, in addition to the possible management options for partial and complete ruptures. The treatment options are adapted according to the extent of the loss of function (partial, complete) and the duration of the injury (acute vs chronic). Furthermore, the choice of treatment should take into account the quality and availability of primary tissue, the patient's general health, along with their likely functional requirements. Conservative treatment is often justified in partial ruptures with good results. Complete ruptures require surgical intervention and multiple operative techniques are described. Treatment options for acute ruptures include direct primary repair with autogenous or synthetic tissue augmentation. In the case of chronic insufficiency and a lack of soft-tissue surroundings, reconstruction with the aid of a muscle flap or allograft tissue can be considered. All surgical intervention techniques used so far have been fraught with complications and rarely lead to satisfactory results. A new surgical approach to the reconstruction and augmentation of the extensor mechanism consists of the use of a synthetic mesh. The technique is described here in detail.

  2. A review of wide surgical excision of hidradenitis suppurativa

    Directory of Open Access Journals (Sweden)

    Alharbi Ziyad

    2012-06-01

    Full Text Available Abstract Background Hidradenitis suppurativa (HS is a chronic inflammatory cutaneous disorder that involves the infundibular terminal follicles in areas rich of apocrine glands. It can be associated with fistulating sinus, scarring and abscesses formation. Hidradenitis suppurativa is a challenging aspect and requires a proper treatment plan which may involve different specialties. We present herein the option of surgical treatment involving wide surgical excision and methods of reconstruction as well as the rate of recurrence. Furthermore, review of the literature regarding surgical treatment of hidradenitis suppurativa is provided. Methods A retrospective analysis reviewed 50 operative procedures for 32 patients in 5 anatomical sites. These anatomical sites have been divided to 23 sites involving the axilla, 17 sites involving the inguinal region and 8 sites involving the perianal/perineal area, 1 site involving the gluteal region and 1 site involving the trunk region. Results Twenty six patients (81, 25 % showed no recurrence after surgery and the average time of hospital stay period was 5 days. Recurrence was observed only in 6 patients (18, 75 %. Conclusion Elimination of the acute inflammatory process should occur in advance, including the use of antibiotics and minor surgeries such as abscess drainage with proper irrigations. After stabilizing the acute phase, wide surgical excision is recommended. Herein, planning of surgical reconstruction should be initiated to achieve the best outcome and consequently decreasing the risk of recurrence and complications after surgery.

  3. Surgical Treatment of Displaced Greater Tuberosity Fractures of the Humerus.

    Science.gov (United States)

    Rouleau, Dominique M; Mutch, Jennifer; Laflamme, Georges-Yves

    2016-01-01

    Greater tuberosity fractures of the humerus can be successfully treated nonsurgically in most patients. However, as little as 3 to 5 mm of superior greater tuberosity displacement may adversely affect rotator cuff biomechanics and lead to subacromial impingement in patients who are active. In these cases, surgical treatment is recommended. Multiple surgical techniques include open and arthroscopic options tailored to fracture morphology, and strategies for repair include the use of suture anchors, transosseous sutures, tension bands, and plates/screws. Three classification systems are commonly used to describe greater tuberosity fractures: the AO, Neer, and morphologic classifications. Several hypotheses have been discussed for the mechanism of greater tuberosity fractures and the deforming forces of the rotator cuff, and the use of advanced imaging is being explored.

  4. Surgical management of vesicoureteral reflux in children.

    Science.gov (United States)

    Sung, Jennifer; Skoog, Steven

    2012-04-01

    Vesicoureteral reflux (VUR) is the most common uropathy affecting children. Compared to children without VUR, those with VUR have a higher rate of pyelonephritis and renal scarring following urinary tract infection (UTI). Options for treatment include observation with or without antibiotic prophylaxis and surgical repair. Surgical intervention may be necessary in patients with persistent reflux, renal scarring, and recurrent or breakthrough febrile UTI. Both open and endoscopic approaches to reflux correction are successful and reduce the occurrence of febrile UTI. Estimated success rates of open and endoscopic reflux correction are 98.1% (95% CI 95.1, 99.1) and 83.0% (95% CI 69.1, 91.4), respectively. Factors that affect the success of endoscopic injection include pre-operative reflux grade and presence of functional or anatomic bladder abnormalities including voiding dysfunction and duplicated collecting systems. Few studies have evaluated the long-term outcomes of endoscopic injection, and with variable results. In patients treated endoscopically, recurrent febrile UTI occurred in 0-21%, new renal damage in 9-12%, and recurrent reflux in 17-47.6% of treated ureters with at least 1 year follow-up. These studies highlight the need for standardized outcome reporting and longer follow-up after endoscopic treatment.

  5. Surgical management of polycystic liver disease

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Adult polycystic liver disease (PCLD) is an autosomal dominant condition commonly associated with autosomal dominant polycystic kidney disease (ADPKD). However in the last decade, it has been recognized that there is a distinct form of autosomal dominant PCLD that arises without concomitant ADPKD. Early knowledge of the pathogenesis was gained from the study of hepatic cysts in patients with ADPKD. Bile duct overgrowth after embryogenesis results in cystic hepatic dilatations that are known as biliary microhamartomas or von Meyenburg complexes. Further dilatation arises from cellular proliferation and fluid secretion into these cysts.There is a variable, broad spectrum of manifestations of PCLD. Although PCLD is most often asymptomatic,massive hepatomegaly can lead to disabling symptoms of abdominal pain, early satiety, persistent nausea,dyspnea, ascites, biliary obstruction, and lower body edema. Complications of PCLD include cyst rupture and cyst infection. Also, there are associated medical problems, especially intracranial aneurysms and valvular heart disease, which clinicians need to be aware of and evaluate in patients with PCLD. In asymptomatic patients, no treatment is indicated for PCLD. In the symptomatic patient, surgical therapy is the mainstay of treatment tailored to the extent of disease for each patient. Management options include cyst aspiration and sclerosis, open or laparoscopic fenestration, liver resection with fenestration, and liver transplantation.The surgical literature discussing treatment of PCLD,including techniques, outcomes, and complication rates,are summarized in this review.

  6. Pseudotumor cerebri: An update on treatment options

    Directory of Open Access Journals (Sweden)

    Sarita B Dave

    2014-01-01

    Full Text Available Aims: The aim was to identify Pseudotumor cerebri treatment options and assess their efficacy. Setting and Design: Review article. Materials and Methods: Existing literature and the authors′ experience were reviewed. Results: Treatment options range from observation to surgical intervention. Weight loss and medical treatment may be utilized in cases without vision loss or in combination with surgical treatment. Cerebrospinal fluid shunting procedures and/or optic nerve sheath decompression is indicated for severe vision loss or headache unresponsive to medical management. The recent use of endovascular stenting of transverse sinus stenoses has also demonstrated benefit in patients with pseudotumor cerebri. Conclusion: While each treatment form may be successful individually, a multimodal approach is typically utilized with treatments selected on a case-by-case basis.

  7. A simulation of water call option prices

    OpenAIRE

    1994-01-01

    Ankara : The Department of Economics and the Institute of Economics and Social Sciences of Bilkent Univ., 1994. Thesis (Master's) -- Bilkent University, 1994. Includes bibliographical references. The popularity of iinancial derivatives and especially options is widespread in the last decade. Although various commodity options became popular nowadays, no form of water option happened to arise because there were no need. On the other hand, Turkey and the Middle East countries ...

  8. Therapeutic options for lip augmentation.

    Science.gov (United States)

    Segall, Lorne; Ellis, David A F

    2007-11-01

    Aesthetic ideals vary with emerging fashion trends and within different cultures. However, over the past few decades, fuller lips have been considered a desirable trait. Many younger patients are presenting for lip augmentation to achieve the sought-after look commonly seen in many fashion magazines. In addition, as individuals age, they lose lip volume, with a thinning of the red lip, some effacement of the vermillion border, and elongation and flattening of the white portion of the lip. Rejuvenation of the lips plays a key role in restoring a more youthful appearance. As a result, lip augmentation appeals to a wide spectrum of patients who present with various different aesthetic goals and expectations. Numerous therapeutic options exist for aesthetic lip augmentation, ranging from temporary and permanent injectable fillers to implants and other surgical techniques.

  9. Surgical treatment of facial paralysis.

    Science.gov (United States)

    Mehta, Ritvik P

    2009-03-01

    The management of facial paralysis is one of the most complex areas of reconstructive surgery. Given the wide variety of functional and cosmetic deficits in the facial paralysis patient, the reconstructive surgeon requires a thorough understanding of the surgical techniques available to treat this condition. This review article will focus on surgical management of facial paralysis and the treatment options available for acute facial paralysis (facial paralysis (3 weeks to 2 yr) and chronic facial paralysis (>2 yr). For acute facial paralysis, the main surgical therapies are facial nerve decompression and facial nerve repair. For facial paralysis of intermediate duration, nerve transfer procedures are appropriate. For chronic facial paralysis, treatment typically requires regional or free muscle transfer. Static techniques of facial reanimation can be used for acute, intermediate, or chronic facial paralysis as these techniques are often important adjuncts to the overall management strategy.

  10. Non-surgical therapy of Peyronie's disease

    Institute of Scientific and Technical Information of China (English)

    Frederick L. Taylor; Laurence A. Levine

    2008-01-01

    The present paper provides a review of the available non-surgical treatments for Peyronie's disease (PD). A review of published literature on oral, intralesional, external energy and iontophoresis therapies for PD was performed,and the published results of available treatment options reviewed. The authors' recommendations for appropriate non-surgical management of PD are provided. Although there are many published reports that show the efficacy of non-surgical therapies for PD, there is a lack of large scale, multicenter controlled clinical trials, which makes treatment recommendations difficult. Careful review of the literature does suggest that there are treatment options that make scientific sense and appear to stabilize the disease process, reduce deformity, and improve function. Offering no treatment at all will encourage our patients to pursue alternative treatments, which might do harm, and misses the opportunity to do some good. Clearly further work is necessary to develop safe and effective non-surgical treatments for PD.

  11. Definition and scope of the surgical treatment in patients with pulmonary metastases from colorectal cancer

    Directory of Open Access Journals (Sweden)

    B. B. Ahmedov

    2016-01-01

    Full Text Available Surgical treatment of metastatic colorectal cancer in lungs is a relatively new trend of modern oncology. In this connection, still there are no clearly formulated criteria for patient selection for this type of intervention, approaches to repeated resections and scope of the surgical operation in case of multiple lesions. Established key prognostic factors include lesion of intrathoracic lymph nodes, timing of the development of metastatic disease, baseline level of carcinoembryonic antigen, number of foci and the volume of metastatic lesion, stage of the disease. Options for surgical access include lateral thoracotomy, sternotomy, thoracoscopy and thoracoscopy combined with additional minithoracotomy.If a patient has a single peripheral metastatic lesions, physician should prefer thoracoscopic operations. One of their advantages include minimum development of adhesions and possibility of subsequent re-thoracoscopy. Resection of pulmonary metastases from colorectal cancer (R0 resection rate allows to achieve persistent healing of the tumor process in a significant number of patients.

  12. Surgical Approaches for Stage IVA Thymic Epithelial Tumors.

    Science.gov (United States)

    Shapiro, Mark; Korst, Robert J

    2014-01-14

    Thymic epithelial tumors (TET) are rare mediastinal neoplasms that can metastasize to the pleural space (stage IVA). Complete surgical resection remains the backbone of therapy for patients with early stage TET, however, the role of surgery in the management of patients with stage IVA disease is not fully defined. Published reports in this regard are mainly small, retrospective, and uncontrolled, with unclear inclusion criteria. Surgical options to manage pleural disease include metastasectomy, extrapleural pneumonectomy, and metastasectomy/pleurectomy combined with heated intrapleural chemotherapy. The choice of the most appropriate surgical strategy needs to be individualized according to the quantity and location of disease, the patient's overall condition, as well as operator and institutional expertise. In the majority of cases, metastasectomy of pleural implants will be sufficient to achieve a complete resection. The available literature suggests that in selected patients with stage IVA TET, delivery of neoadjuvant chemotherapy followed by complete resection is a viable treatment option that can be associated with long-term survival.

  13. Assessing the Option to Abandon an Investment Project by the Binomial Options Pricing Model

    Directory of Open Access Journals (Sweden)

    Salvador Cruz Rambaud

    2016-01-01

    Full Text Available Usually, traditional methods for investment project appraisal such as the net present value (hereinafter NPV do not incorporate in their values the operational flexibility offered by including a real option included in the project. In this paper, real options, and more specifically the option to abandon, are analysed as a complement to cash flow sequence which quantifies the project. In this way, by considering the existing analogy with financial options, a mathematical expression is derived by using the binomial options pricing model. This methodology provides the value of the option to abandon the project within one, two, and in general n periods. Therefore, this paper aims to be a useful tool in determining the value of the option to abandon according to its residual value, thus making easier the control of the uncertainty element within the project.

  14. Approximate option pricing

    Energy Technology Data Exchange (ETDEWEB)

    Chalasani, P.; Saias, I. [Los Alamos National Lab., NM (United States); Jha, S. [Carnegie Mellon Univ., Pittsburgh, PA (United States)

    1996-04-08

    As increasingly large volumes of sophisticated options (called derivative securities) are traded in world financial markets, determining a fair price for these options has become an important and difficult computational problem. Many valuation codes use the binomial pricing model, in which the stock price is driven by a random walk. In this model, the value of an n-period option on a stock is the expected time-discounted value of the future cash flow on an n-period stock price path. Path-dependent options are particularly difficult to value since the future cash flow depends on the entire stock price path rather than on just the final stock price. Currently such options are approximately priced by Monte carlo methods with error bounds that hold only with high probability and which are reduced by increasing the number of simulation runs. In this paper the authors show that pricing an arbitrary path-dependent option is {number_sign}-P hard. They show that certain types f path-dependent options can be valued exactly in polynomial time. Asian options are path-dependent options that are particularly hard to price, and for these they design deterministic polynomial-time approximate algorithms. They show that the value of a perpetual American put option (which can be computed in constant time) is in many cases a good approximation to the value of an otherwise identical n-period American put option. In contrast to Monte Carlo methods, the algorithms have guaranteed error bounds that are polynormally small (and in some cases exponentially small) in the maturity n. For the error analysis they derive large-deviation results for random walks that may be of independent interest.

  15. 3D Surgical Simulation

    Science.gov (United States)

    Cevidanes, Lucia; Tucker, Scott; Styner, Martin; Kim, Hyungmin; Chapuis, Jonas; Reyes, Mauricio; Proffit, William; Turvey, Timothy; Jaskolka, Michael

    2009-01-01

    This paper discusses the development of methods for computer-aided jaw surgery. Computer-aided jaw surgery allows us to incorporate the high level of precision necessary for transferring virtual plans into the operating room. We also present a complete computer-aided surgery (CAS) system developed in close collaboration with surgeons. Surgery planning and simulation include construction of 3D surface models from Cone-beam CT (CBCT), dynamic cephalometry, semi-automatic mirroring, interactive cutting of bone and bony segment repositioning. A virtual setup can be used to manufacture positioning splints for intra-operative guidance. The system provides further intra-operative assistance with the help of a computer display showing jaw positions and 3D positioning guides updated in real-time during the surgical procedure. The CAS system aids in dealing with complex cases with benefits for the patient, with surgical practice, and for orthodontic finishing. Advanced software tools for diagnosis and treatment planning allow preparation of detailed operative plans, osteotomy repositioning, bone reconstructions, surgical resident training and assessing the difficulties of the surgical procedures prior to the surgery. CAS has the potential to make the elaboration of the surgical plan a more flexible process, increase the level of detail and accuracy of the plan, yield higher operative precision and control, and enhance documentation of cases. Supported by NIDCR DE017727, and DE018962 PMID:20816308

  16. Non-surgical treatment of esophageal achalasia

    Institute of Scientific and Technical Information of China (English)

    Vito Annese; Gabrio Bassotti

    2006-01-01

    Esophageal achalasia is an infrequent motility disorder characterized by a progressive stasis and dilation of the oesophagus; with subsequent risk of aspiration,weight loss, and malnutrition. Although the treatment of achalasia has been traditionally based on a surgical approach, especially with the introduction of laparoscopic techniques, there is still some space for a medical approach. The present article reviews the non-surgical therapeutic options for achalasia.

  17. Modifiable risk factors for surgical site infection.

    Science.gov (United States)

    Moucha, Calin S; Clyburn, Terry A; Evans, Richard P; Prokuski, Laura

    2011-01-01

    Multiple risk factors for orthopaedic surgical site infection have been identified. Some of these factors directly affect the wound-healing process, whereas others can lead to blood-borne sepsis or relative immunosuppression. Modifying a patient's medications; screening for comorbidities, such as HIV or diabetes mellitus; and advising the patient on options to diminish or eliminate adverse behaviors, such as smoking, should lower the risk for surgical site infections.

  18. Informed Option Trading Strategies

    NARCIS (Netherlands)

    C.M. de Jong (Cyriel)

    2001-01-01

    textabstractWe use a sequential trade model to clarify two mechanisms following the introduction of an option that may lead to increased efficiency in the underlying. On the one hand, market makers learn from trades in the option market and set more accurate prices. On the other hand, the proportion

  19. Surgical intervention in patients with necrotizing pancreatitis

    NARCIS (Netherlands)

    Besselink, MG; de Bruijn, MT; Rutten, JP; Boermeester, MA; Hofker, HS; Gooszen, HG

    2006-01-01

    Background: This study evaluated the various surgical strategies for treatment of (suspected) infected necrotizing pancreatitis (INP) and patient referrals for this condition in the Netherlands. Methods: This retrospective study included all 106 consecutive patients who had surgical treatment for IN

  20. Primary Treatment Options for High-Risk/Medically Inoperable Early Stage NSCLC Patients.

    Science.gov (United States)

    Jones, Guy C; Kehrer, Jason D; Kahn, Jenna; Koneru, Bobby N; Narayan, Ram; Thomas, Tarita O; Camphausen, Kevin; Mehta, Minesh P; Kaushal, Aradhana

    2015-11-01

    Lung cancer is among the most common cancers worldwide and is the leading cause of cancer death in both men and women. For patients with early stage (American Joint Committee on Cancer T1-2, N0) non-small-cell lung cancer, the current standard of care is lobectomy with systematic lymph node evaluation. Unfortunately, patients with lung cancer often have medical comorbities, which may preclude the option of surgical resection. In such cases, a number of minimally invasive to noninvasive treatment options have gained popularity in the treatment of these high-risk patients. These modalities provide significant advantages, including patient convenience, treatment in an outpatient setting, and acceptable toxicities, including reduced impact on lung function and a modest risk of postprocedure chest wall pain. We provide a comprehensive review of the literature, including reported outcomes, complications, and limitations of sublobar resection with or without intraoperative brachytherapy, radiofrequency ablation, microwave ablation, percutaneous cryoablation, photodynamic therapy, and stereotactic body radiotherapy.

  1. Traffic Light Options

    DEFF Research Database (Denmark)

    Jørgensen, Peter Løchte

    2006, and supervisory authorities in many other European countries have implemented similar regulation. Traffic light options are therefore likely to attract the attention of a wider audience of pension fund managers in the future. Focusing on the valuation of the traffic light option we set up a Black......This paper introduces, prices, and analyzes traffic light options. The traffic light option is an innovative structured OTC derivative developed independently by several London-based investment banks to suit the needs of Danish life and pension (L&P) companies, which must comply with the traffic...... light scenarios. These stress scenarios entail drops in interest rates as well as in stock prices, and traffic light options are thus designed to pay off and preserve sufficient capital when interest rates and stock prices fall simultaneously. Sweden's FSA implemented a traffic light system in January...

  2. Traffic Light Options

    DEFF Research Database (Denmark)

    Jørgensen, Peter Løchte

    2007-01-01

    2006, and supervisory authorities in many other European countries have implemented similar regulation. Traffic light options are therefore likely to attract the attention of a wider audience of pension fund managers in the future. Focusing on the valuation of the traffic light option we set up a Black......This paper introduces, prices, and analyzes traffic light options. The traffic light option is an innovative structured OTC derivative developed independently by several London-based investment banks to suit the needs of Danish life and pension (L&P) companies, which must comply with the traffic...... light scenarios. These stress scenarios entail drops in interest rates as well as in stock prices, and traffic light options are thus designed to pay off and preserve sufficient capital when interest rates and stock prices fall simultaneously. Sweden's FSA implemented a traffic light system in January...

  3. Flexible endoscopic and surgical management of Zenker's diverticulum.

    Science.gov (United States)

    Dzeletovic, Ivana; Ekbom, Dale C; Baron, Todd H

    2012-08-01

    Zenker's diverticulum is an outpouching of the mucosa through the Killian's triangle. The etiology of Zenker's diverticulum is not well understood. It is thought to be due to the incoordination or incomplete relaxation of the cricopharyngeal muscle. Most patients are men who present with symptoms of dysphagia between the seventh and eighth decades of life. The diagnosis is made with a dynamic contrast swallowing study. Treatment options include open surgical diverticulectomy and diverticulopexy with myotomy or myotomy alone using flexible or rigid endoscopes. Rigid endoscopic treatment is currently the preferred initial choice for Zenker's diverticulum of any size. The flexible endoscopic technique is used when there is a high risk of general anesthesia, or neck extension is contraindicated. Some centers use flexible endoscopy as the initial treatment option. Due to a lack of prospective studies, the treatment choice should be tailored to the individual patient and local expertise.

  4. What Are The Surgical Options In Patients With

    African Journals Online (AJOL)

    injury 2 Studies have shown that the proximal two cm of the bladder neck and urethra ... bladder and the vaginal wall '°~ " Complex fistulae, radiation induced fistulae ... Continent cutaneous urinary diversion using the kock pouch, Mainz pouch ...

  5. Surgical options for correction of refractive error following cataract surgery.

    Science.gov (United States)

    Abdelghany, Ahmed A; Alio, Jorge L

    2014-01-01

    Refractive errors are frequently found following cataract surgery and refractive lens exchange. Accurate biometric analysis, selection and calculation of the adequate intraocular lens (IOL) and modern techniques for cataract surgery all contribute to achieving the goal of cataract surgery as a refractive procedure with no refractive error. However, in spite of all these advances, residual refractive error still occasionally occurs after cataract surgery and laser in situ keratomileusis (LASIK) can be considered the most accurate method for its correction. Lens-based procedures, such as IOL exchange or piggyback lens implantation are also possible alternatives especially in cases with extreme ametropia, corneal abnormalities, or in situations where excimer laser is unavailable. In our review, we have found that piggyback IOL is safer and more accurate than IOL exchange. Our aim is to provide a review of the recent literature regarding target refraction and residual refractive error in cataract surgery.

  6. Louisiana Speaks Transportation Option C Roadway Improvements, UTM Zone 15N NAD 83, Louisiana Recovery Authority (2007), [louisiana_speaks_transportation_option_c_roadway_improvements

    Data.gov (United States)

    Louisiana Geographic Information Center — This GIS shapefile data illustrates the regional roadways included in the Louisiana Speaks community growth option of compact development (Option C). This network...

  7. Louisiana Speaks Transportation Option B Roadway Improvements, UTM Zone 15N NAD 83, Louisiana Recovery Authority (2007), [louisiana_speaks_transportation_option_b_roadway_improvements

    Data.gov (United States)

    Louisiana Geographic Information Center — This GIS shapefile data illustrates the regional roadways included in the Louisiana Speaks community growth option of compact and dispersed development (Option B)....

  8. Louisiana Speaks Transportation Option A Roadway Improvements, UTM Zone 15N NAD 83, Louisiana Recovery Authority (2007), [louisiana_speaks_transportation_option_a_roadway_improvements

    Data.gov (United States)

    Louisiana Geographic Information Center — This GIS shapefile data illustrates the regional roadways included in the Louisiana Speaks Regional Plan community growth option of dispersed development (Option A)....

  9. Central retinal vein occlusion: A review of current Evidence-based treatment options

    Directory of Open Access Journals (Sweden)

    Amy Patel

    2016-01-01

    Full Text Available A central retinal vein occlusion (CRVO can induce an ischemic and hypoxic state with resulting sequelae of macular edema and neovascularization. Many treatment options have been studied. Our review aims to investigate the safety and efficacy of the multiple treatment options of CRVO. A PubMed and Cochrane literature search was performed. Well-controlled randomized clinical trials that demonstrated strong level 1 evidence-based on the rating scale developed by the British Centre for Evidence-Based Medicine were included. Seven clinical trials met inclusion criteria to be included in this review. These included studies that investigated the safety and efficacy of retinal photocoagulation (1 study, intravitreal steroid treatment (2 studies, and antivascular endothelial growth factor treatment (4 studies for the treatment of CRVO. In addition, studies evaluating surgical treatment options for CRVO were also included. Many treatment modalities have been demonstrated to be safe and efficacious in the treatment of CRVO. These treatment options offer therapeutic benefits for patients and clinically superior visual acuity and perhaps the quality of life after suffering from a CRVO.

  10. Early Option Exercise

    DEFF Research Database (Denmark)

    Heje Pedersen, Lasse; Jensen, Mads Vestergaard

    A classic result by Merton (1973) is that, except just before expiration or dividend payments, one should never exercise a call option and never convert a convertible bond. We show theoretically that this result is overturned when investors face frictions. Early option exercise can be optimal when...... it reduces short-sale costs, transaction costs, or funding costs. We provide consistent empirical evidence, documenting billions of dollars of early exercise for options and convertible bonds using unique data on actual exercise decisions and frictions. Our model can explain as much as 98% of early exercises...

  11. Early Option Exercise

    DEFF Research Database (Denmark)

    Jensen, Mads Vestergaard; Heje Pedersen, Lasse

    2016-01-01

    A classic result by Merton (1973) is that, except just before expiration or dividend payments, one should never exercise a call option and never convert a convertible bond. We show theoretically that this result is overturned when investors face frictions. Early option exercise can be optimal when...... it reduces short-sale costs, transaction costs, or funding costs. We provide consistent empirical evidence, documenting billions of dollars of early exercise for options and convertible bonds using unique data on actual exercise decisions and frictions. Our model can explain as much as 98% of early exercises...

  12. Surgical therapies for corneal perforations: 10 years of cases in a tertiary referral hospital

    Directory of Open Access Journals (Sweden)

    Yokogawa H

    2014-10-01

    Full Text Available Hideaki Yokogawa, Akira Kobayashi, Natsuko Yamazaki, Toshinori Masaki, Kazuhisa Sugiyama Department of Ophthalmology, Kanazawa University Graduate School of Medical Science, Kanazawa, JapanPurpose: To report surgical therapies for corneal perforations in a tertiary referral hospital.Methods: Thirty-one eyes of 31 patients (aged 62.4±18.3 years with surgically treated corneal perforations from January 2002 to July 2013 were included in this study. Demographic data such as cause of corneal perforation, surgical procedures, and visual outcomes were retrospectively analyzed.Results: The causes of corneal perforation (n=31 were divided into infectious (n=8, 26% and noninfectious (n=23, 74% categories. Infectious causes included fungal ulcer, herpetic stromal necrotizing keratitis, and bacterial ulcer. The causes of noninfectious keratopathy included corneal melting after removal of a metal foreign body, severe dry eye, lagophthalmos, canaliculitis, the oral anticancer drug S-1, keratoconus, rheumatoid arthritis, neurotrophic ulcer, atopic keratoconjunctivitis, and unknown causes. Initial surgical procedures included central large corneal graft (n=17, small corneal graft (n=7, and amniotic membrane transplantation (n=7. In two cases the perforation could not be sealed during the first surgical treatment and required subsequent procedures. All infectious keratitis required central large penetrating keratoplasty to obtain anatomical cure. In contrast, several surgical options were used for the treatment of noninfectious keratitis. After surgical treatment, anatomical cure was obtained in all cases. Mean postoperative best corrected visual acuity was better at 6 months (logMAR 1.3 than preoperatively (logMAR 1.8.Conclusion: Surgical therapies for corneal perforations in our hospital included central large lamellar/penetrating keratoplasty, small peripheral patch graft, and amniotic membrane transplantation. All treatments were effective. Corneal

  13. AFCI Options Study

    Energy Technology Data Exchange (ETDEWEB)

    R. Wigeland; T. Taiwo; M. Todosow; W. Halsey; J. Gehin

    2009-09-01

    This report describes the background and framework for both organizing the discussion and providing information on the potential for nuclear energy R&D to develop alternative nuclear fuel cycles that would address the issues with the current implementations of nuclear power, including nuclear waste disposal, proliferation risk, safety, security, economics, and sustainability. The disposition of used fuel is the cause of many of the concerns, and the possible approaches to used fuel management identify a number of basic technology areas that need to be considered. The basic science in each of the technology areas is discussed, emphasizing what science is currently available, where scientific knowledge may be insufficient, and especially to identify specific areas where transformational discoveries may allow achievement of performance goals not currently attainable. These discussions lead to the wide range of technical options that have been the basis for past and current research and development on advanced nuclear fuel cycles in the United States. The results of this work are then briefly reviewed to show the extent to which such approaches are capable of addressing the issues with nuclear power, the potential for moving further, and the inherent limitations.

  14. Current and emerging treatment options for myopic choroidal neovascularization

    Directory of Open Access Journals (Sweden)

    El Matri L

    2015-04-01

    Full Text Available Leila El Matri, Ahmed Chebil, Fedra Kort Department B of Ophthalmology, Hedi Rais Institute of Ophthalmology, Faculty of Medicine of Tunis, University of El Manar, Tunis, Tunisia Abstract: Choroidal neovascularization (CNV is the main cause of visual impairment in highly myopic patients younger than 50 years of age. There are different treatments for myopic CNV (mCNV, with 5- to 10-year outcomes currently. Chorioretinal atrophy is still the most important determinant factor for visual outcome. The purpose of this study is to provide an overview of the current treatments for mCNV, including laser, surgical management, verteporfin photodynamic therapy, and mainly anti-vascular endothelial growth factor therapy. Emerging treatment options are also discussed. Keywords: myopia, choroidal neovascularization, current treatment, emerging treatment

  15. Housing Options for Seniors

    Science.gov (United States)

    ... different services. The services are based on the lifestyle and health care needs of the residents. Below are some options for senior living. Active adult communitiesActive adult communities are neighborhoods made for older ...

  16. Treatment options for hyperemesis gravidarum.

    Science.gov (United States)

    Abramowitz, Amy; Miller, Emily S; Wisner, Katherine L

    2017-01-09

    Hyperemesis gravidarum (HG) is a severe and prolonged form of nausea and/or vomiting during pregnancy. HG affects 0.3-2% of pregnancies and is defined by dehydration, ketonuria, and more than 5% body weight loss. Initial pharmacologic treatment for HG includes a combination of doxylamine and pyridoxine. Additional interventions include ondansetron or dopamine antagonists such as metoclopramide or promethazine. The options are limited for women who are not adequately treated with these medications. We suggest that mirtazapine is a useful drug in this context and its efficacy has been described in case studies. Mirtazapine acts on noradrenergic, serotonergic, histaminergic, and muscarinic receptors to produce antidepressant, anxiolytic, antiemetic, sedative, and appetite-stimulating effects. Mirtazapine is not associated with an independent increased risk of birth defects. Further investigation of mirtazapine as a treatment for HG holds promise to expand treatment options for women suffering from HG.

  17. Pre-Surgical Evaluation of Intractable Epilepsy in Children

    Directory of Open Access Journals (Sweden)

    Hadi Kazemi

    2011-05-01

    Full Text Available AbstractObjectiveThis review summarizes some patterns of pre-surgical evaluation of epilepsyin children with medically refractory seizures. Epilepsy surgery is a valuabletherapeutic option for many children with intractable epilepsy. The most effectivetreatment for intractable partial epilepsy is a focal cortical resection with excisionof the area of ictal onset and initial seizure propagation (the epileptogenic zone.EEG monitoring continues to prove indispensable in pre-surgical planning ofrefractory epileptic patients by defining the epileptogenic zone. Technologicalprogresses in both structural and functional neuroimaging techniques have ledmany medical centers to consider surgical treatment of epilepsy. In childrenundergoing pre-surgical evaluation, the goals of neuroimaging studies includethe identification of structural abnormalities in the brain, eloquent regions of thebrain including language, memory, and sensorimotor functions, and the relationof these regions to the potential epileptogenic region. Neuropsychological testingplays a crucial role in assessing the potential impact of surgery on cognitivefunction of the patients and helps in lateralizing the cerebral hemispheredominant for verbal and nonverbal function in older children. The Wada testis an invasive procedure to determine language dominance and can be usedto assess the risk of postoperative memory deficits in children with temporallobe epilepsy. Some children scheduled for resection still need to undergofurther precise localization of the epileptogenic zone and functional mappingwith invasive EEG monitoring through intracranial subdural grid and/or depthelectrodes. Epilepsy surgery has the potential of changing the life quality ofchildren by improving or eliminating seizures in carefully selected patients.

  18. Fluorosis varied treatment options

    OpenAIRE

    Sherwood I

    2010-01-01

    Fluorosis has been reported way back in 1901. The treatment options for fluorosis are varied depending upon individual cases. This article comes from Madurai in India where its surrounding towns are fluorosis-prone zones. The purpose of this article is to report various treatment options available for dental fluorosis; this is the first time that complete full mouth rehabilitation for dental fluorosis is being reported. This article also dwells on the need for the dentists to be aware of thei...

  19. Electric retail market options: The customer perspective

    Energy Technology Data Exchange (ETDEWEB)

    Hadley, S.W.; Hillsman, E.L.

    1995-07-01

    This report describes various options that are now available for retail electric customers, or that may become available during the next few years as the electric utility industry restructures. These options include different ways of meeting demand for energy services, different providers of service or points of contact with providers, and different pricing structures for purchased services. Purpose of this document is to examine these options from the customer`s perspective: how might being a retail electric customer in 5--10 years differ from now? Seizing opportunities to reduce cost of electric service is likely to entail working with different service providers; thus, transaction costs are involved. Some of the options considered are speculative. Some transitional options include relocation, customer-built/operated transmission lines, municipalization, self-generation, and long-term contracts with suppliers. All these may change or diminish in a restructured industry. Brokers seem likely to become more common unless restructuring takes the form of mandatory poolcos (wholesale). Some options appear robust, ie, they are likely to become more common regardless of how restructuring is accomplished: increased competition among energy carriers (gas vs electric), real-time pricing, etc. This report identified some of the qualitative differences among the various options. For customers using large amounts of electricity, different alternatives are likely to affect greatly service price, transaction costs, tailoring service to customer preferences, and risks for customer. For retail customers using small amounts of electricity, there may be little difference among the options except service price.

  20. Surgical treatment of functional mitral regurgitation

    NARCIS (Netherlands)

    Braun, Jerry

    2012-01-01

    In this thesis the surgical options for treatment of functional mitral regurgitation (MR) are described. In functional MR, the mitral valve has a normal anatomy, which distinguishes this type of insufficiency from organic MR. Regurgitation in functional MR is related to an abnormal geometry of the l

  1. [Financing and control of surgical training].

    Science.gov (United States)

    Schröder, W; Welcker, K

    2010-01-01

    The present analyses of different surgical training systems show that training of surgical residents significantly contributes to hospital costs. These are predominantly caused by prolonged operation times of residents with increased work load for other staff members in the operating room. In addition, the productivity of surgical residents is less compared to experienced surgeons. On the other hand, hospital managements save money by the lower standard wages paid to the residents. The amount of educational costs is difficult to determine because surgical training takes place as on the job training. Therefore, from an economic point of view, the two products patient care and surgical training are difficult to separate. There are no reliable cost analyses available for the German training system. At present surgical training is indirectly financed by the DRG (diagnosis-related groups) flat rates of the health insurance. Possible options of financing the surgical training are additional funding from the health department or redistribution with supplemental payment for those surgical departments which contribute significantly more to the residents' training. Statements of medical associations, health departments and health insurances demonstrate the difficulty to come to an agreement concerning the finances of the training system. Despite this controversial discussion it should be taken into consideration that there is no alternative to a high quality surgical training as this is the basis for an effective health system.

  2. TECHNOLOGICAL OPTIONS FOR ACID RAIN CONTROL

    Science.gov (United States)

    Discussed are acid rain control options available to the electric utility industry. They include coal switching, flue gas desulfurization, and such emerging lower cost technologies as Limestone Injection Multistage Burners (LIMB) and Advanced Silicate (ADVACATE), both developed ...

  3. TECHNOLOGICAL OPTIONS FOR ACID RAIN CONTROL

    Science.gov (United States)

    Discussed are acid rain control options available to the electric utility industry. They include coal switching, flue gas desulfurization, and such emerging lower cost technologies as Limestone Injection Multistage Burners (LIMB) and Advanced Silicate (ADVACATE), both developed ...

  4. Surgical versus conservative treatment of distal radius fractures in elderly.

    Science.gov (United States)

    Trevisan, C; Klumpp, R; Nava, V; Riccardi, D; Recalcati, W

    2013-10-01

    The distal radius fractures (DRFs) are the second most common fracture in the elderly population. Despite their frequency, the optimal treatment of these fractures remains controversial. Several dogmatic myths on DRFs management may adversely affect their outcome and despite a strong trend versus surgical options, systematic reviews suggest that conservative treatment remains the safest option for DRFs in most cases.

  5. Hepatic surgical anatomy.

    Science.gov (United States)

    Skandalakis, John E; Skandalakis, Lee J; Skandalakis, Panajiotis N; Mirilas, Petros

    2004-04-01

    The liver, the largest organ in the body, has been misunderstood at nearly all levels of organization, and there is a tendency to ignore details that do not fit the preconception. A complete presentation of the surgical anatomy of the liver includes the study of hepatic surfaces, margins, and fissures; the various classifications of lobes and segments; and the vasculature and lymphatics. A brief overview of the intrahepatic biliary tract is also presented.

  6. Surgical treatment of male infertility in the era of intracytoplasmic sperm injection - new insights

    Directory of Open Access Journals (Sweden)

    Sandro C. Esteves

    2011-01-01

    Full Text Available Assisted reproductive technology is an evolving area, and several adjuvant procedures have been created to increase a couple's chance of conceiving. For male infertility, the current challenges are to properly accommodate old and new techniques that are both cost-effective and evidence-based. In this context, urologists are expected to diagnose, counsel, provide medical or surgical treatment whenever possible and/or correctly refer male patients for assisted conception. Urologists are sometimes part of a multiprofessional team in an assisted reproduction unit and are responsible for the above-cited tasks as well as the surgical retrieval of sperm from either the epididymides or testicles. We present a comprehensive review of the surgical treatment options for infertile males, including the perioperative planning and prognostic aspects, with an emphasis on the role of microsurgery in the optimization of treatment results. This review also discusses current techniques for sperm retrieval that are used in association with assisted reproductive technology and includes sperm retrieval success rates according to the technique and the type of azoospermia. New insights are provided with regard to each surgical treatment option in view of the availability of assisted conception to overcome male infertility.

  7. 24-h Efficacy of Glaucoma Treatment Options.

    Science.gov (United States)

    Konstas, Anastasios G P; Quaranta, Luciano; Bozkurt, Banu; Katsanos, Andreas; Garcia-Feijoo, Julian; Rossetti, Luca; Shaarawy, Tarek; Pfeiffer, Norbert; Miglior, Stefano

    2016-04-01

    Current management of glaucoma entails the medical, laser, or surgical reduction of intraocular pressure (IOP) to a predetermined level of target IOP, which is commensurate with either stability or delayed progression of visual loss. In the published literature, the hypothesis is often made that IOP control implies a single IOP measurement over time. Although the follow-up of glaucoma patients with single IOP measurements is quick and convenient, such measurements often do not adequately reflect the untreated IOP characteristics, or indeed the quality of treated IOP control during the 24-h cycle. Since glaucoma is a 24-h disease and the damaging effect of elevated IOP is continuous, it is logical that we should aim to understand the efficacy of all treatment options throughout the 24-h period. This article first reviews the concept and value of diurnal and 24-h IOP monitoring. It then critically evaluates selected available evidence on the 24-h efficacy of medical, laser and surgical therapy options. During the past decade several controlled trials have significantly enhanced our understanding on the 24-h efficacy of all glaucoma therapy options. Nevertheless, more long-term evidence is needed to better evaluate the 24-h efficacy of glaucoma therapy and the precise impact of IOP characteristics on glaucomatous progression and visual prognosis.

  8. Healthy option preferences of rural restaurant customers.

    Science.gov (United States)

    Nothwehr, Faryle; Snetselaar, Linda; Dawson, Jeffrey D; Hradek, Christine; Sepulveda, Marisol

    2010-11-01

    In preparation for an intervention study in three rural Iowa restaurants, 250 customers were surveyed regarding their interest in dietary change, perceptions of the restaurant, and interest in healthy options. Customers were ages 18 to 88, with a mean age of 52, and 53% were women. Most agreed that the restaurant offers healthy meals. Options customers stated they were most likely to order if available included meat that is baked or broiled, whole-wheat bread, fresh fruit or steamed vegetables, and regular salad dressing on the side. They were least interested in low-fat sour cream, low-fat salad dressing, low-fat milk, low-calorie dessert, and holding high-fat ingredients. Women were more likely to indicate interest in healthy options than were men. Interest in several options was also positively associated with age. Increasing the healthy options in restaurants may be especially effective in changing the dietary intake of women and older adults.

  9. Cross-sectoral assessment of mitigation options

    DEFF Research Database (Denmark)

    Halsnæs, K.

    1997-01-01

    options and polity areas where there may be synergistic effects between climate change mitigation and national development objectives, The country study for Tanzania has identified forestry and land use activities and the agricultural sectors as some of the main drivers in the future growth of greenhouse...... gas emissions, Forestry, land use and agriculture are at the same time key economic and social development areas, This means that options leading to improved performance of these activities can reduce future greenhouse gas emissions and imply increasing welfare, A potential for win-win options has...... similarly been assessed in the country study for Zimbabwe, The options include in particular efficiency improvements in industrial plants and in the energy sector, A new methodological issue in the country study for Zimbabwe is the comparable assessment of greenhouse gas reductions options for multiple...

  10. [da Vinci surgical system].

    Science.gov (United States)

    Watanabe, Gou; Ishikawa, Norihiro

    2014-07-01

    The da Vinci surgical system was developed by Intuitive Surgical Inc. in the United States as an endoscopic surgical device to assist remote control surgeries. In 1998, the Da Vinci system was first used for cardiothoracic procedures. Currently a combination of robot-assisted internal thoracic artery harvest together with coronary artery bypass grafting (CABG) through a mini-incision (ThoraCAB) or totally endoscopic procedures including anastomoses under robotic assistance (TECAB) are being conducted for the treatment of coronary artery diseases. With the recent advances in catheter interventions, hybrid procedures combining catheter intervention with ThoraCAB or TECAB are anticipated in the future.On the other hand, with the decrease in number of coronary artery bypass surgeries, the share of valvular surgeries is expected to increase in the future. Among them, mitral valvuloplasty for mitral regurgitation is anticipated to be conducted mainly by low-invasive procedures, represented by minimally invasive cardiac surgery( MICS) and robot-assisted surgery. Apart from the intrinsic good surgical view, robotic-assisted systems offer additional advantages of the availability of an amplified view and the easy to observe the mitral valve in the physiological position. Thus, robotic surgical surgeries that make complicated procedures easier are expected to accomplish further developments in the future. Furthermore, while the number of surgeries for atrial septal defects has decreased dramatically following the widespread use of Amplatzer septal occluder, robotic surgery may become a good indication for cases in which the Amplatzer device is not indicated. In Japan, clinical trial of the da Vinci robotic system for heart surgeries has been completed. Statutory approval of the da Vinci system for mitral regurgitation and atrial septal defects is anticipated in the next few years.

  11. Pawnee Nation Energy Option Analyses

    Energy Technology Data Exchange (ETDEWEB)

    Matlock, M.; Kersey, K.; Riding In, C.

    2009-07-31

    introduced two model energy codes Pawnee Nation should consider for adoption. Summary of Current and Expected Future Electricity Usage The research team provided a summary overview of electricity usage patterns in current buildings and included discussion of known plans for new construction. Utility Options Review Pawnee Nation electric utility options were analyzed through a four-phase process, which included: 1) summarizing the relevant utility background information; 2) gathering relevant utility assessment data; 3) developing a set of realistic Pawnee electric utility service options, and 4) analyzing the various Pawnee electric utility service options for the Pawnee Energy Team’s consideration. III. Findings and Recommendations Due to a lack of financial incentives for renewable energy, particularly at the state level, combined mediocre renewable energy resources, renewable energy development opportunities are limited for Pawnee Nation. However, near-term potential exists for development of solar hot water at the gym, and an exterior wood-fired boiler system at the tribe’s main administrative building. Pawnee Nation should also explore options for developing LFGTE resources in collaboration with the City of Pawnee. Significant potential may also exist for development of bio-energy resources within the next decade. Pawnee Nation representatives should closely monitor market developments in the bio-energy industry, establish contacts with research institutions with which the tribe could potentially partner in grant-funded research initiatives. In addition, a substantial effort by the Kaw and Cherokee tribes is underway to pursue wind development at the Chilocco School Site in northern Oklahoma where Pawnee is a joint landowner. Pawnee Nation representatives should become actively involved in these development discussions and should explore the potential for joint investment in wind development at the Chilocco site.

  12. Depleted uranium disposal options evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Hertzler, T.J.; Nishimoto, D.D.; Otis, M.D. [Science Applications International Corp., Idaho Falls, ID (United States). Waste Management Technology Div.

    1994-05-01

    The Department of Energy (DOE), Office of Environmental Restoration and Waste Management, has chartered a study to evaluate alternative management strategies for depleted uranium (DU) currently stored throughout the DOE complex. Historically, DU has been maintained as a strategic resource because of uses for DU metal and potential uses for further enrichment or for uranium oxide as breeder reactor blanket fuel. This study has focused on evaluating the disposal options for DU if it were considered a waste. This report is in no way declaring these DU reserves a ``waste,`` but is intended to provide baseline data for comparison with other management options for use of DU. To PICS considered in this report include: Retrievable disposal; permanent disposal; health hazards; radiation toxicity and chemical toxicity.

  13. Managing Nuclear Waste: Options Considered

    Energy Technology Data Exchange (ETDEWEB)

    DOE

    2002-05-02

    Starting in the 1950s, U.S. scientists began to research ways to manage highly radioactive materials accumulating at power plants and other sites nationwide. Long-term surface storage of these materials poses significant potential health, safety, and environmental risks. Scientists studied a broad range of options for managing spent nuclear fuel and high-level radioactive waste. The options included leaving it where it is, disposing of it in various ways, and making it safer through advanced technologies. International scientific consensus holds that these materials should eventually be disposed of deep underground in what is called a geologic repository. In a recent special report, the National Academy of Sciences summarized the various studies and emphasized that geologic disposal is ultimately necessary.

  14. Clinical practice guideline: tonsillitis II. Surgical management.

    Science.gov (United States)

    Windfuhr, Jochen P; Toepfner, Nicole; Steffen, Gregor; Waldfahrer, Frank; Berner, Reinhard

    2016-04-01

    In 2013, a total of 84,332 patients had undergone extracapsular tonsillectomies (TE) and 11,493 a tonsillotomy (TT) procedure in Germany. While the latter is increasingly performed, the number of the former is continually decreasing. However, a constant number of approximately 12,000 surgical procedures in terms of abscess-tonsillectomies or incision and drainage are annually performed in Germany to treat patients with a peritonsillar abscess. The purpose of this part of the clinical guideline is to provide clinicians in any setting with a clinically focused multi-disciplinary guidance through the surgical treatment options to reduce inappropriate variation in clinical care, improve clinical outcome and reduce harm. Surgical treatment options encompass intracapsular as well as extracapsular tonsil surgery and are related to three distinct entities: recurrent episodes of (1) acute tonsillitis, (2) peritonsillar abscess and (3) infectious mononucleosis. Conservative management of these entities is subject of part I of this guideline. (1) The quality of evidence for TE to resolve recurrent episodes of tonsillitis is moderate for children and low for adults. Conclusions concerning the efficacy of TE on the number of sore throat episodes per year are limited to 12 postoperative months in children and 5-6 months in adults. The impact of TE on the number of sore throat episodes per year in children is modest. Due to the heterogeneity of data, no firm conclusions on the effectiveness of TE in adults can be drawn. There is still an urgent need for further research to reliably estimate the value of TE compared to non-surgical therapy of tonsillitis/tonsillo-pharyngitis. The impact of TE on quality of life is considered as being positive, but further research is mandatory to establish appropriate inventories and standardized evaluation procedures, especially in children. In contrast to TE, TT or comparable procedures are characterized by a substantially lower postoperative

  15. Surgical treatment of cleft lip

    Directory of Open Access Journals (Sweden)

    Mateus Domingues Miachon

    Full Text Available We performed a systematic review of the literature on the surgical treatment of cleft lip, emphasizing the prevalence, complications associated with the treatment and the points of disagreement between authors. We conducted a literature cross-sectional search that analyzed publications in books, articles and on the databases SciELO - Scientific Electronic Library Online, PubMed, of the National Center for Biotechnology Information. We conclude that: 1 the severity of the cleft will indicate the technique presenting more advantages; 2 the different approaches indicate that there is no consensus on the optimal technique; and 3 the surgeon experience contributes to choosing the best option.

  16. Traffic Light Options

    DEFF Research Database (Denmark)

    Jørgensen, Peter Løchte

    This paper introduces, prices, and analyzes traffic light options. The traffic light option is an innovative structured OTC derivative developed independently by several London-based investment banks to suit the needs of Danish life and pension (L&P) companies, which must comply with the traffic...... light solvency stress test system introduced by the Danish Financial Supervisory Authority (DFSA) in June 2001. This monitoring system requires L&P companies to submit regular reports documenting the sensitivity of the companies' base capital to certain pre-defined market shocks - the red and yellow...... light scenarios. These stress scenarios entail drops in interest rates as well as in stock prices, and traffic light options are thus designed to pay off and preserve sufficient capital when interest rates and stock prices fall simultaneously. Sweden's FSA implemented a traffic light system in January...

  17. Central Station Design Options

    DEFF Research Database (Denmark)

    2011-01-01

    The purpose of EDISON Work Package 4.1 is the evaluation of possible Central (charging) Stations design options for making possible the public charging of Electric Vehicles (EVs). A number of scenarios for EVs are assessed, with special emphasis on the options of Fast Charging and Battery Swapping....... The work identifies the architecture, sizing and siting of prospective Central Stations in Denmark, which can be located at shopping centers, large car parking lots or gas stations. Central Stations are planned to be integrated in the Danish distribution grid. The Danish island of Bornholm, where a high.......g. due to vandalism, the charge supply circuit is disconnected. More electrical vehicles on the market are capable today of quick charging up to 50 kW power level. The feasibility of Central Stations with fast charging/swapping option, their capacity, design, costs and grid impact, as well as battery...

  18. Thermal test options

    Energy Technology Data Exchange (ETDEWEB)

    Koski, J.A.; Keltner, N.R.; Sobolik, K.B.

    1993-02-01

    Shipping containers for radioactive materials must be qualified to meet a thermal accident environment specified in regulations, such at Title 10, Code of Federal Regulations, Part 71. Aimed primarily at the shipping container design, this report discusses the thermal testing options available for meeting the regulatory requirements, and states the advantages and disadvantages of each approach. The principal options considered are testing with radiant heat, furnaces, and open pool fires. The report also identifies some of the facilities available and current contacts. Finally, the report makes some recommendations on the appropriate use of these different testing methods.

  19. Fluorosis varied treatment options

    Directory of Open Access Journals (Sweden)

    Sherwood I

    2010-01-01

    Full Text Available Fluorosis has been reported way back in 1901. The treatment options for fluorosis are varied depending upon individual cases. This article comes from Madurai in India where its surrounding towns are fluorosis-prone zones. The purpose of this article is to report various treatment options available for dental fluorosis; this is the first time that complete full mouth rehabilitation for dental fluorosis is being reported. This article also dwells on the need for the dentists to be aware of their local indigenous pathologies to treat it in a better manner.

  20. The hydrogen hybrid option

    Energy Technology Data Exchange (ETDEWEB)

    Smith, J.R.

    1993-10-15

    The energy efficiency of various piston engine options for series hybrid automobiles are compared with conventional, battery powered electric, and proton exchange membrane (PEM) fuel cell hybrid automobiles. Gasoline, compressed natural gas (CNG), and hydrogen are considered for these hybrids. The engine and fuel comparisons are done on a basis of equal vehicle weight, drag, and rolling resistance. The relative emissions of these various fueled vehicle options are also presented. It is concluded that a highly optimized, hydrogen fueled, piston engine, series electric hybrid automobile will have efficiency comparable to a similar fuel cell hybrid automobile and will have fewer total emissions than the battery powered vehicle, even without a catalyst.

  1. Spacecraft surgical scrub system

    Science.gov (United States)

    Abbate, M.

    1980-01-01

    Ease of handling and control in zero gravity and minimizing the quantity of water required were prime considerations. The program tasks include the selection of biocidal agent from among the variety used for surgical scrub, formulation of a dispensing system, test, and delivery of flight dispensers. The choice of an iodophore was based on effectiveness on single applications, general familiarity among surgeons, and previous qualification for space use. The delivery system was a choice between the squeeze foamer system and impregnated polyurethane foam pads. The impregnated foam pad was recommended because it is a simpler system since the squeeze foamer requires some applicator to effectively clean the skin surfaces, whereas the form pad is the applicator and agent combined. Testing demonstrated that both systems are effective for use as surgical scrubs.

  2. Virtual reality training for surgical trainees in laparoscopic surgery.

    Science.gov (United States)

    Gurusamy, Kurinchi Selvan; Aggarwal, Rajesh; Palanivelu, Latha; Davidson, Brian R

    2009-01-21

    Surgical training has traditionally been one of apprenticeship, where the surgical trainee learns to perform surgery under the supervision of a trained surgeon. This is time consuming, costly, and of variable effectiveness. Training using a virtual reality simulator is an option to supplement standard training. To determine whether virtual reality training can supplement or replace conventional laparoscopic surgical training (apprenticeship) in surgical trainees with limited or no prior laparoscopic experience. We searched The Cochrane Hepato-Biliary Group Controlled Trials Register, the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library, MEDLINE, EMBASE, Science Citation Index Expanded, and grey literature until March 2008. We included all randomised clinical trials comparing virtual reality training versus other forms of training including video trainer training, no training, or standard laparoscopic training in surgical trainees with little or no prior laparoscopic experience. We also included trials comparing different methods of virtual reality training. We collected the data on the characteristics of the trial, methodological quality of the trials, mortality, morbidity, conversion rate, operating time, and hospital stay. We analysed the data with both the fixed-effect and the random-effects models using RevMan Analysis. For each outcome we calculated the standardised mean difference with 95% confidence intervals based on intention-to-treat analysis. We included 23 trials with 612 participants. Four trials compared virtual reality versus video trainer training. Twelve trials compared virtual reality versus no training or standard laparoscopic training. Four trials compared virtual reality, video trainer training and no training, or standard laparoscopic training. Three trials compared different methods of virtual reality training. Most of the trials were of high risk of bias. In trainees without prior surgical experience, virtual

  3. Static super-replicating strategies for a class of exotic options

    NARCIS (Netherlands)

    Chen, X.; Deelstra, G.; Dhaene, J.; Vanmaele, M.

    2008-01-01

    In this paper, we investigate static super-replicating strategies for European-type call options written on a weighted sum of asset prices. This class of exotic options includes Asian options and basket options among others. We assume that there exists a market where the plain vanilla options on the

  4. Current status in the treatment options for esophageal achalasia.

    Science.gov (United States)

    Chuah, Seng-Kee; Chiu, Chien-Hua; Tai, Wei-Chen; Lee, Jyong-Hong; Lu, Hung-I; Changchien, Chi-Sin; Tseng, Ping-Huei; Wu, Keng-Liang

    2013-09-07

    Recent advances in the treatment of achalasia include the use of high-resolution manometry to predict the outcome of patients and the introduction of peroral endoscopic myotomy (POEM). The first multicenter randomized, controlled, 2-year follow-up study conducted by the European Achalasia Trial group indicated that laparoscopic Heller myotomy (LHM) was not superior to pneumatic dilations (PD). Publications on the long-term success of laparoscopic surgery continue to emerge. In addition, laparoscopic single-site surgery is applicable to advanced laparoscopic operations such as LHM and anterior fundoplication. The optimal treatment option is an ongoing matter of debate. In this review, we provide an update of the current progress in the treatment of esophageal achalasia. Unless new conclusive data prove otherwise, LHM is considered the most durable treatment for achalasia at the expense of increased reflux-associated complications. However, PD is the first choice for non-surgical treatment and is more cost-effective. Repeated PD according to an "on-demand" strategy based on symptom recurrence can achieve long-term remission. Decision making should be based on clinical evidence that identifies a subcategory of patients who would benefit from specific treatment options. POEM has shown promise but its long-term efficacy and safety need to be assessed further.

  5. Idaho's Energy Options

    Energy Technology Data Exchange (ETDEWEB)

    Robert M. Neilson

    2006-03-01

    This report, developed by the Idaho National Laboratory, is provided as an introduction to and an update of the status of technologies for the generation and use of energy. Its purpose is to provide information useful for identifying and evaluating Idaho’s energy options, and for developing and implementing Idaho’s energy direction and policies.

  6. A Survey of Sleep Medicine Physician Perceptions on the Surgical Treatment of Obstructive Sleep Apnea.

    Science.gov (United States)

    Swope, Jonathan J; Couey, Marcus A; Wilson, James W; Jundt, Jonathon S

    2017-05-01

    Surgical treatment for obstructive sleep apnea (OSA) varies by specialty. Our survey sought to answer 3 principal questions: 1) To which surgical specialists are sleep physicians referring patients for upper airway surgery? 2) Which surgical treatment do sleep specialists find to be most effective in treating OSA? 3) Do sleep medicine physicians believe that maxillomandibular advancement (MMA) is worthwhile to patients who are surgical candidates? We formulated a cross-sectional survey. The study sample was obtained by identifying all practices that advertised as sleep medicine specialists in Houston, Texas, by using Internet searches. Physicians who treated children were excluded. Seventy-nine surveys were hand delivered to offices in the greater Houston area; the survey included 6 questions to determine referral and surgical preferences for OSA. Variable responses included years in practice, specialty, and a comments section. A 10-point Likert scale was used to assess sleep medicine physicians' referral patterns and perceptions regarding surgical treatment of OSA. Numerical data were analyzed by calculating mean values and by dividing responses into "disagree" (5). Twenty-six surveys were returned. More sleep medicine physicians referred patients to ear, nose, and throat surgeons (52%) than to oral and maxillofacial surgeons (20%). MMA was viewed as the most effective surgery (72%), followed by "none" (16%), "other" (8%), and uvulopalatopharyngoplasty (4%). More respondents viewed the benefits versus risks as favorable for MMA (44%) than for uvulopalatopharyngoplasty (29%). The results of this survey show that sleep medicine physicians in the greater Houston area view MMA as the most favorable and effective surgical option for treating OSA. Although MMA was most often referred for, more respondents refer patients to ear, nose, and throat surgeons than to oral and maxillofacial surgeons for surgical management of OSA. Years in practice displayed no correlation in

  7. Surgical correction of cleft lip and palate.

    Science.gov (United States)

    Jayaram, Rahul; Huppa, Christoph

    2012-01-01

    Surgical cleft repair aims to restore function of the oro-nasal sphincter and oro-nasal soft tissues and re-establish the complex relationship between perioral and perinasal muscle rings without compromising subsequent mid-facial growth and development. Here we review the surgical anatomy of this region, optimal timing for surgical repair and current thinking on the use of surgical adjuncts. In addition, an overview of current surgical techniques available for the repair of cleft lip, cleft palate and velopharyngeal insufficiency is presented. Finally, we briefly discuss nasal revision surgery and the use of osteotomy, including distraction osteogenesis in the cleft patient.

  8. Lung Disease Including Asthma and Adult Vaccination

    Science.gov (United States)

    ... Healthcare Professionals Lung Disease including Asthma and Adult Vaccination Language: English Español (Spanish) Recommend on Facebook Tweet ... more about health insurance options. Learn about adult vaccination and other health conditions Asplenia Diabetes Heart Disease, ...

  9. The Early Exercise Premium Representation for American Options on Multiply Assets

    Energy Technology Data Exchange (ETDEWEB)

    Klimsiak, Tomasz, E-mail: tomas@mat.umk.pl; Rozkosz, Andrzej, E-mail: rozkosz@mat.umk.pl [Nicolaus Copernicus University, Faculty of Mathematics and Computer Science (Poland)

    2016-02-15

    In the paper we consider the problem of valuation of American options written on dividend-paying assets whose price dynamics follow the classical multidimensional Black and Scholes model. We provide a general early exercise premium representation formula for options with payoff functions which are convex or satisfy mild regularity assumptions. Examples include index options, spread options, call on max options, put on min options, multiply strike options and power-product options. In the proof of the formula we exploit close connections between the optimal stopping problems associated with valuation of American options, obstacle problems and reflected backward stochastic differential equations.

  10. Debridement for surgical wounds.

    Science.gov (United States)

    Dryburgh, Nancy; Smith, Fiona; Donaldson, Jayne; Mitchell, Melloney

    2008-07-16

    Surgical wounds that become infected are often debrided because clinicians believe that removal of this necrotic or infected tissue will expedite wound healing. There are numerous methods available but no consensus on which one is most effective for surgical wounds. The aim of this review is to determine the effect of different methods of debridement on the rate of debridement and healing of surgical wounds. We developed a search strategy to search the following electronic databases: Wounds Group Specialised Trials Register (searched 3/3/08) , Cochrane Central Register of Controlled Trials (CENTRAL) (the Cochrane Library, 2008, issue 1), MEDLINE (1950 to February Week 3 2008 ), EMBASE (1980 to 2008 Week 09) and CINHAL (1982 to February Week 4 2008). We checked the citations within obtained studies to identify additional papers and also relevant conference proceedings. We contacted manufactures of wound debridement agents to ascertain the existence of published, unpublished and ongoing trials. Our search was not limited by language or publication status. We included relevant randomised controlled trials (RCT) with outcomes including at least one of the following: time to complete debridement, or time to complete healing. Two authors independently reviewed the abstracts and titles obtained from the search, two extracted data independently using a standardised extraction sheet, and two independently assessed methodological quality. One author was involved in all stages of the data collection and extraction process, thus ensuring continuity. Five RCTs were eligible for inclusion; all compared treatments for infected surgical wounds and reported time required to achieve a clean wound bed (complete debridement). One trial compared an enzymatic agent (Streptokinase/streptodornase) with saline-soaked dressings and reported the time to complete debridement. Four of the trials compared the effectiveness of dextranomer beads or paste with other products (different comparator

  11. Micro-surgical endodontics.

    Science.gov (United States)

    Eliyas, S; Vere, J; Ali, Z; Harris, I

    2014-02-01

    Non-surgical endodontic retreatment is the treatment of choice for endodontically treated teeth with recurrent or residual disease in the majority of cases. In some cases, surgical endodontic treatment is indicated. Successful micro-surgical endodontic treatment depends on the accuracy of diagnosis, appropriate case selection, the quality of the surgical skills, and the application of the most appropriate haemostatic agents and biomaterials. This article describes the armamentarium and technical procedures involved in performing micro-surgical endodontics to a high standard.

  12. Surgical innovation as sui generis surgical research.

    Science.gov (United States)

    Lotz, Mianna

    2013-12-01

    Successful innovative 'leaps' in surgical technique have the potential to contribute exponentially to surgical advancement, and thereby to improved health outcomes for patients. Such innovative leaps often occur relatively spontaneously, without substantial forethought, planning, or preparation. This feature of surgical innovation raises special challenges for ensuring sufficient evaluation and regulatory oversight of new interventions that have not been the subject of controlled investigatory exploration and review. It is this feature in particular that makes early-stage surgical innovation especially resistant to classification as 'research', with all of the attendant methodological and ethical obligations--of planning, regulation, monitoring, reporting, and publication--associated with such a classification. This paper proposes conceptual and ethical grounds for a restricted definition according to which innovation in surgical technique is classified as a form of sui generis surgical 'research', where the explicit goal of adopting such a definition is to bring about needed improvements in knowledge transfer and thereby benefit current and future patients.

  13. Effects of art on surgical patients

    OpenAIRE

    Vetter, Diana; Barth, Jürgen; Uyulmaz, Sema; Uyulmaz, Semra; Vonlanthen, René; Belli, Giulio; Montorsi, Marco; Bismuth, Henri; Claudia M. Witt; Clavien, Pierre-Alain

    2015-01-01

    Objectives: The aim of the study was to assess the effect of art including ambient features such as music, interior design including visual art, and architectural features on health outcomes in surgical patients. Background: Healing environments can have a positive influence on many patients, but data focusing on art in surgical patients remain scarce. Methods: We conducted a systematic search following the PRISMA guidelines from January 2000 to October 2014 on art in surgical patients....

  14. Results of Surgical Treatment of Chronic Patellar Tendinosis (Jumper's Knee): A Systematic Review of the Literature.

    Science.gov (United States)

    Brockmeyer, Matthias; Diehl, Nora; Schmitt, Cornelia; Kohn, Dieter M; Lorbach, Olaf

    2015-12-01

    To review the literature concerning surgical treatment options for chronic patellar tendinosis (jumper's knee), a common problem among athletes. When conservative treatment fails, surgical treatment is required. Systematic review of the literature concerning the results of current surgical treatment options for chronic patellar tendinosis. All articles of studies with an evidence level ≥IV from January 2000 until February 2015 presenting the surgical outcome after arthroscopic as well as open treatment of chronic patellar tendinosis were included. The literature research of the PubMed database was performed using the following key words: "patellar" and "tendinitis," "tendonitis," "tendinosis" or "tendinopathy"; "inferior patellar pole"; "jumper's knee"; "surgical treatment" and "open" or "arthroscopic patellar tenotomy." A systematic review of the literature was performed especially to point out the effectiveness of arthroscopic treatment of chronic patellar tendinosis. The results revealed good clinical results for arthroscopic as well as open treatment of chronic patellar tendinosis that is refractory to conservative treatment in athletes. An average success rate of 87% was found for the open treatment group and of 91% for the arthroscopic treatment group. However, after open surgery, the mean time of return to the preinjury level of activity is 8 to 12 months, with a certain number of patients/athletes who cannot return to the preinjury level of activity. Minimally invasive, arthroscopically assisted or all-arthroscopic procedures may lead to a significantly faster return to sporting activities and may, therefore, be the preferred method of surgical treatment. Level IV, systematic review of Level I-IV studies. Copyright © 2015 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.

  15. Energy options?; Energie opties?

    Energy Technology Data Exchange (ETDEWEB)

    Van Sark, W. (ed.)

    2006-05-15

    March 2006 the so-called Options Document was published by the Energy research Centre of the Netherlands (ECN) and the Netherlands Environmental Assessment Agency (MNP). The document is an overview of technical options to reduce energy consumption and emission of greenhouse gases up to 2020. Next to a brief summary of the document a few reactions and comments on the contents of the document are given. [Dutch] Maart 2006 publiceerde het Energieonderzoek Centrum Nederland (ECN) en het Milieu- en Natuurplanbureau (MNP) het zogenaamde Optiedocument energie en emissies 2010-2020. Daarin wordt een overzicht gegeven van de technische mogelijkheden voor vermindering van het energieverbruik en de uitstoot van broeikasgassen en luchtverontreinigende stoffen tot 2020. Naast een korte samenvatting van het document worden enkele reacties gegeven op de inhoud.

  16. Treatment Options for Narcolepsy

    OpenAIRE

    Barateau, Lucie; Lopez, Régis; Dauvilliers, Yves

    2016-01-01

    International audience; Narcolepsy type 1 and narcolepsy type 2 are central disorders of hypersomnolence. Narcolepsy type 1 is characterized by excessive daytime sleepiness and cataplexy and is associated with hypocretin-1 deficiency. On the other hand, in narcolepsy type 2, cerebrospinal fluid hypocretin-1 levels are normal and cataplexy absent. Despite major advances in our understanding of narcolepsy mechanisms, its current management is only symptomatic. Treatment options may vary from a ...

  17. The safeguards options study

    Energy Technology Data Exchange (ETDEWEB)

    Hakkila, E.A.; Mullen, M.F.; Olinger, C.T.; Stanbro, W.D. [Los Alamos National Lab., NM (United States); Olsen, A.P.; Roche, C.T.; Rudolph, R.R. [Argonne National Lab., IL (United States); Bieber, A.M.; Lemley, J. [Brookhaven National Lab., Upton, NY (United States); Filby, E. [Idaho National Engineering Lab., Idaho Falls, ID (United States)] [and others

    1995-04-01

    The Safeguards Options Study was initiated to aid the International Safeguards Division (ISD) of the DOE Office of Arms Control and Nonproliferation in developing its programs in enhanced international safeguards. The goal was to provide a technical basis for the ISD program in this area. The Safeguards Options Study has been a cooperative effort among ten organizations. These are Argonne National Laboratory, Brookhaven National Laboratory, Idaho National Engineering Laboratory, Lawrence Livermore National Laboratory, Los Alamos National Laboratory, Mound Laboratory, Oak Ridge National Laboratory, Pacific Northwest Laboratories, Sandia National Laboratories, and Special Technologies Laboratory. Much of the Motivation for the Safeguards Options Study is the recognition after the Iraq experience that there are deficiencies in the present approach to international safeguards. While under International Atomic Energy Agency (IAEA) safeguards at their declared facilities, Iraq was able to develop a significant weapons program without being noticed. This is because negotiated safeguards only applied at declared sites. Even so, their nuclear weapons program clearly conflicted with Iraq`s obligations under the Nuclear Nonproliferation Treaty (NPT) as a nonnuclear weapon state.

  18. Diverticulitis: selective surgical management.

    Science.gov (United States)

    Rugtiv, G M

    1975-08-01

    The surgical treatment of complications of diverticulitis remains most challenging. A review of twenty years' experience with one hundred fifteen cases is presented with one proved anastomotic leak and no deaths. Interval primary resection with anastomosis for chronic recurrent disease including colovesical fistula and mesocolic abscess was proved sate with low morbidity. The three-stage procedure for perforated diverticulitis with spreading peritonitis or pericolic abscess was associated with a high rate of complications and morbidity. An aggressive approach with resection without anastomosis in two stages is indicated.

  19. Compound Option Pricing under Fuzzy Environment

    Directory of Open Access Journals (Sweden)

    Xiandong Wang

    2014-01-01

    Full Text Available Considering the uncertainty of a financial market includes two aspects: risk and vagueness; in this paper, fuzzy sets theory is applied to model the imprecise input parameters (interest rate and volatility. We present the fuzzy price of compound option by fuzzing the interest and volatility in Geske’s compound option pricing formula. For each α, the α-level set of fuzzy prices is obtained according to the fuzzy arithmetics and the definition of fuzzy-valued function. We apply a defuzzification method based on crisp possibilistic mean values of the fuzzy interest rate and fuzzy volatility to obtain the crisp possibilistic mean value of compound option price. Finally, we present a numerical analysis to illustrate the compound option pricing under fuzzy environment.

  20. Updates on the Surgical Management of Pediatric Glaucoma.

    Science.gov (United States)

    Tan, Yar-Li; Chua, Jocelyn; Ho, Ching-Lin

    2016-01-01

    Childhood glaucoma is known to be one of the most challenging conditions to manage. Surgical management is more complicated than in adults because of differences in anatomy from adults along with variations in anatomy caused by congenital and developmental anomalies, wide-ranging pathogenetic mechanisms, a more aggressive healing response, and a less predictable postoperative course. Challenges in postoperative examination and management in less cooperative children and the longer life expectancies preempting the need for future surgeries and reinterventions are also contributing factors. Angle surgery is usually the first-line treatment in the surgical management of primary congenital glaucoma because it has a relatively good success rate with a low complication rate. After failed angle surgery or in cases of secondary pediatric glaucoma, options such as trabeculectomy, glaucoma drainage devices, or cyclodestructive procedures can be considered, depending on several factors such as the type of glaucoma, age of the patient, and the severity and prognosis of the disease. Various combinations of these techniques have also been studied, in particular combined trabeculotomy-trabeculectomy, which has been shown to be successful in patients with moderate-to-advanced disease. Newer nonpenetrating techniques, such as viscocanalostomy and deep sclerectomy, have been reported in some studies with variable results. Further studies are needed to evaluate these newer surgical techniques, including the use of modern minimally invasive glaucoma surgeries, in this special and diverse group of young patients.

  1. Advances in Surgical Reconstructive Techniques in the Management of Penile, Urethral, and Scrotal Cancer.

    Science.gov (United States)

    Bickell, Michael; Beilan, Jonathan; Wallen, Jared; Wiegand, Lucas; Carrion, Rafael

    2016-11-01

    This article reviews the most up-to-date surgical treatment options for the reconstructive management of patients with penile, urethral, and scrotal cancer. Each organ system is examined individually. Techniques and discussion for penile cancer reconstruction include Mohs surgery, glans resurfacing, partial and total glansectomy, and phalloplasty. Included in the penile cancer reconstruction section is the use of penile prosthesis in phalloplasty patients after penectomy, tissue engineering in phallic regeneration, and penile transplantation. Reconstruction following treatment of primary urethral carcinoma and current techniques for scrotal cancer reconstruction using split-thickness skin grafts and flaps are described.

  2. Deliberating emission reduction options

    Energy Technology Data Exchange (ETDEWEB)

    Dowd, A.M.; Rodriguez, M.; Jeanneret, T. [Commonwealth Scientific and Industrial Research Organisation CSIRO, 37 Graham Rd, Highett VIC 3190 (Australia); De Best-Waldhober, M.; Straver, K.; Mastop, J.; Paukovic, M. [Energy research Centre of the Netherlands ECN, Policy Studies, Amsterdam (Netherlands)

    2012-06-15

    For more than 20 years there has been a concerted international effort toward addressing climate change. International conventions, such as the United Nations Foreign Convention on Climate Change (UNFCCC; ratified in 1994), have been established by committed nations seeking to address global climate change through the reduction of greenhouse gases emitted into the Earth's atmosphere (Global CCS Institute, 2011). Long recognised as the most crucial of the greenhouse gases to impact global warming, the majority of carbon dioxide's anthropogenic global emissions are directly related to fuel combustion of which both Australia and the Netherlands' energy production is significantly reliant. Both these nations will need to consider many opinions and make hard decisions if alternative energy options are to be implemented at the scale that is required to meet international emission targets. The decisions that are required not only need to consider the many options available but also their consequences. Along with politicians, policy developers and industry, the general public also need to be active participants in deciding which energy options, and their subsequent consequences, are acceptable for implementation at the national level. Access to balanced and factual information is essential in establishing informed opinions on the many policy options available. Past research has used several methods to measure public perceptions and opinions yet for complex issues, such as emission reduction, some of these methods have shown to be problematic. For example, semi structured interviews can provide data that is flexible and context rich yet is does also come with the limitations such as it seldom provides a practical assessment that can be utilised from researcher to researcher, across disciplines and public participation techniques. Surveys on the other hand usually address these limitations but surveys that do not encourage comparison of information or ask

  3. Surgical Treatment of Skin Tumors

    Directory of Open Access Journals (Sweden)

    Gonca

    2015-06-01

    Full Text Available When we mention about surgical treatment of any tumor residing on the skin independent of its benign or malignant nature, the first method we recall is excision. Elliptical excision is the mainstay of the dermatologic surgery. Each excision ends with a defect for which we are responsible to repair functionally and cosmetically. The diameter of the tumor we excised and the safety margin used for excision determine the diameter of the final defect. After achieving tumor free lateral and deep margins with the appropriate surgical method, we decide between the repair options of second intention healing, primary repair, flaps, full or split thickness grafts, considering the diameter and the anatomic localization of the defect, for the best functional and cosmetic result for that specific defect. This review overviews not only the most common dermatologic surgical methods, but also Mohs surgery which is a method rarely used in our country, although it is the treatment of choice for the treatment of high risk basal cell carcinoma (BCC and squamous cell carcinoma (SCC.

  4. Intraoperative monitoring technician: a new member of the surgical team.

    Science.gov (United States)

    Brown, Molly S; Brown, Debra S

    2011-02-01

    As surgery needs have increased, the traditional surgical team has expanded to include personnel from radiology and perfusion services. A new surgical team member, the intraoperative monitoring technician, is needed to perform intraoperative monitoring during procedures that carry a higher risk of central and peripheral nerve injury. Including the intraoperative monitoring technician on the surgical team can create challenges, including surgical delays and anesthesia care considerations. When the surgical team members, including the surgeon, anesthesia care provider, and circulating nurse, understand and facilitate this new staff member's responsibilities, the technician is able to perform monitoring functions that promote the smooth flow of the surgical procedure and positive patient outcomes.

  5. Surgical treatment for male prolactinoma

    Science.gov (United States)

    Song, Yi-Jun; Chen, Mei-Ting; Lian, Wei; Xing, Bing; Yao, Yong; Feng, Ming; Wang, Ren-Zhi

    2017-01-01

    Abstract A total of 184 cases of surgically treated male prolactinoma were analyzed retrospectively to summarize the outcome of this surgical intervention. We analyzed the general characteristics, clinical manifestations, hormone levels, imaging features, preoperative treatments, surgical outcomes, pathology results, and follow-up records for all included patients. The most common clinical manifestations included sexual dysfunction (47.4%), headache (55.9%), and visual disturbance (46.7%). Serum prolactin levels ranged from 150 to 204,952 ng/mL. Tumor size varied from 6 to 70 mm. Pituitary adenomas grew in a parasellar pattern with visual deficits occurring 40.7% of the time. After surgical therapy, 88.6% of patients achieved symptom relief, and 98.4% experienced an immediate postoperative decline in prolactin level. Fifty-seven patients (31.0%) achieved initial remission, and 26 patients (45.6%) experienced recurrence. Hence, our results suggest that in male prolactinoma characterized by a large pituitary diameter and high serum prolactin level, tumor size predicts the degree of gross resection. The prognostic predictors included preoperative tumor growth pattern and Ki-67 index. Citation: Yi-jun S, Mei-ting C, Wei L, Bing X, Yong Y, Ming F, Ren-zhi W. (2016) Surgical treatment for male prolactinoma: a retrospective study of 184 cases PMID:28079813

  6. Paper Document Storage: A Summary of Options.

    Science.gov (United States)

    Dixon, Ross

    1995-01-01

    Discusses problems with paper storage; considers organizational requirements for storage, including access, cost, and security; describes storage options, including filing cabinets, open shelving, cabinets, carousels, mobile racking, and rotary storage; and examines paper storage as part of a records management strategy. (LRW)

  7. [Interventional neuroradiology: current options].

    Science.gov (United States)

    Szikora, István; Marosfői, Miklós; Berentei, Zsolt; Gubucz, István

    2015-04-26

    Modern interventional neuroradiology has a leading role in the treatment of ischemic and hemorrhagic stroke, and it provides more and more important treatment options for degenerative diseases of the vertebral column and the management of correlated pain. During the last decades interventional neuroradiology has played a primary role in the treatment of intracranial berry aneurysms due to the continuous technical improvements. Ongoing studies proved superiority of mechanical stent-thrombectomy in acute proximal occlusion of cerebral arteries. Less invasive neurointerventional methods, such as vertebroplasty, are widely used in osteoporotic and neoplastic pathologic fractures of the vertebral bodies. These treatments should be performed in a specialized center by well trained physicians.

  8. Surgical treatment for medically refractory myasthenic blepharoptosis

    Directory of Open Access Journals (Sweden)

    Shimizu Y

    2014-09-01

    Full Text Available Yusuke Shimizu,1 Shigeaki Suzuki,2 Tomohisa Nagasao,1 Hisao Ogata,1 Masaki Yazawa,1 Norihiro Suzuki,2 Kazuo Kishi1 1Department of Plastic and Reconstructive Surgery, 2Department of Neurology, Keio University School of Medicine, Tokyo, JapanPurpose: Currently, only a few reports have recommended surgery as a suitable treatment for blepharoptosis associated with myasthenia gravis. The present study aims to introduce our surgical criteria, surgical options, outcomes, and precautions for medically refractory myasthenic blepharoptosis. Patients and methods: Eight patients who failed to respond to at least 2 years of medical treatment and who underwent blepharoptosis surgery, from January 2008 to December 2011, were enrolled in this study. Medical records, photographs, and questionnaire results regarding postoperative status were evaluated. Of the eleven procedures performed, four involved frontal suspension, four involved external levator advancement, one involved nonincisional transconjunctival levator advancement, and two involved subbrow blepharoplasty with orbicularis oculi muscle tucking. The margin reflex distance improved postoperatively in seven patients. Results: Seven patients had very minimal scarring, and one had minimal scarring. Five patients showed no eyelid asymmetry, one had subtle asymmetry, and two had obvious asymmetry. Seven patients were very satisfied, and one patient was satisfied with the overall result. Postoperative complications included mild lid lag with incomplete eyelid closure, prolonged scar redness, and worsened heterophoria. No patient experienced postoperative exposure keratitis or recurrent blepharoptosis during the study period. Conclusion: Our results indicate that blepharoptosis surgery is effective for patients with myasthenia gravis, especially those with residual blepharoptosis despite multiple sessions of medical treatments. We recommend that neurologists and surgeons collaborate more systematically and

  9. Surgical treatment of pathologic fractures of humerus.

    Science.gov (United States)

    Piccioli, Andrea; Maccauro, Giulio; Rossi, Barbara; Scaramuzzo, Laura; Frenos, Filippo; Capanna, Rodolfo

    2010-11-01

    This study evaluates different operative treatment options for patients with metastatic fractures of the humerus focusing on surgical procedures, complications, function, and survival rate. From January 2003 to January 2008, 87 pathological fractures of the humerus in 85 cancer patients were surgically treated in our institutions. Histotypes were breast (n=21), lung (n=14), prostate (n=5), bladder (n=4), kidney (n=13), thyroid (n=7), larynx (n=1), lymphoma (n=5), myeloma (n=8), colon-rectum (n=1), melanoma (n=1), testicle (n=1), hepatocellular carcinoma (n=1) and unknown tumours (n=3). Lesions of the proximal epiphysis were treated with resection and endoprosthetic replacement (n=30). The remaining 57 fractures were stabilized with antegrade unreamed intra-medullary locked nailing without (9 cases) or with resection and use of cement (48 cases). The function of the upper limb was assessed using the Musculo-Skeletal Tumor Society (MSTS) rating scale and survival rate was retrospectively analysed. The mean survival time of patients after surgery was 8.3 months. Complications of endoprosthetic replacement recorded included disease relapse (n=3), soft tissue infection (n=2) and palsy of musculocutaneous nerve (n=1) whereas, for intra-medullary locked nailing there were three cases of soft tissue infection and one case of radial nerve palsy. The mean MSTS score at follow-up was 73% for endoprosthesis and 79.2% for locked intra-medullary nailing. Endoprosthetic replacement of the proximal humerus provides a good function of the upper limb, a low risk of local relapse with a low complication rate at follow-up. Unreamed nailing provides immediate stability and pain relief, minimum morbidity and early return of function.

  10. Pricing European Options in Realistic Markets

    CERN Document Server

    Schaden, M

    2002-01-01

    We investigate the relation between the fair price for European-style vanilla options and the distribution of short-term returns on the underlying asset ignoring transaction and other costs. We compute the risk-neutral probability density conditional on the total variance of the asset's returns when the option expires. If the asset's future price has finite expectation, the option's fair value satisfies a parabolic partial differential equation of the Black-Scholes type in which the variance of the asset's returns rather than a trading time is the evolution parameter. By immunizing the portfolio against large-scale price fluctuations of the asset, the valuation of options is extended to the realistic case\\cite{St99} of assets whose short-term returns have finite variance but very large, or even infinite, higher moments. A dynamic Delta-hedged portfolio that is statically insured against exceptionally large fluctuations includes at least two different options on the asset. The fair value of an option in this c...

  11. [Sterno-clavicular plasty in anterior dislocation in child. The new surgical technic and review literature].

    Science.gov (United States)

    Jiménez, Juan Matus; Guerrero, José Suárez; León, Raúl Torres

    2007-01-01

    The sternoclavicle joint takes part in stability and normal rotation of clavicle in shoulder movement. Its injury infrequent and the luxation in children is more rare. It is classified in previous and retrosternal. The most common causes are by sport trauma and car accidents. In children differential diagnosis includes proximal epiphyseal displacement of clavicle. The clinical picture is pain, sternum or thorax deformity and limitation in range of motion of the arm. The treatment is conservative or surgical, and indications to surgical treatment are pain when moving, range of motion limitation or concomitant complications. In the surgical treatment, the reduction of the clavicle is made with a percutaneous clamp and then protecting the position with a bandage in "eight". Other options are open reduction of the clavicle and subclavian plasty, reduction open and to make plastias with grafts of subclavio,fascia latae or proximal third clavicle resection and cerclage with wire. We present a clinical case and surgical treatment with a novel surgical technique.

  12. Surgical management of liver hydatidosis: a multicentre series of 1412 patients.

    Science.gov (United States)

    Secchi, Mario A; Pettinari, Ricardo; Mercapide, Carlos; Bracco, Ricardo; Castilla, Carlos; Cassone, Eduardo; Sisco, Pablo; Andriani, Oscar; Rossi, Leonardo; Grondona, Jorge; Quadrelli, Lisandro; Cabral, Raúl; Rodríguez León, Nicolás; Ledesma, Carlos

    2010-01-01

    The management of hydatid liver disease (HLD) includes various nonsurgical and surgical treatment options. The purpose of the present longitudinal study was to report the changes in surgical management and the consequent outcome of HLD patients in 10 referral surgical centres in Argentina from 1975 to 2007. The study result analysis was divided into two study periods (1975-1990 and 1991-2007). A total of 1412 patients underwent radical (Group 1: 396 patients), conservative (Group 2: 748 patients) or combined (Group 3: 536 interventions in 268 patients) surgical procedures. The overall mortality and complication rate (Clavien I-IV) was 1.8 and 39% respectively. The complication rate was significantly lower in Group 1 (26%) compared with Group 2 (45%) and Group 3 (42%) There was a significant decrease in mortality (2.3 vs. 1%), complication (42 vs. 34%) and early reoperation (12 vs. 6%) rates between the first study part (918 patients) and the second study part (494 patients). During a median follow-up of 7 years, there was a significant decrease in the first part of this study in the late reoperation rate (8.4-3%) and in disease recurrence (9-1.6%). This large national observational multicentre series shows a significant improvement in surgical management of HLD in Argentina, with a decrease in mortality, morbidity, early and late reoperation and recurrence rates. A recent trend was observed in favour of an earlier diagnosis, less complicated clinical presentation and recent use of minimally invasive approaches.

  13. [Early onset scoliosis. What are the options?].

    Science.gov (United States)

    Farrington, D M; Tatay-Díaz, A

    2013-01-01

    The prognosis of children with progressive early onset scoliosis has improved considerably due to recent advances in surgical and non-surgical techniques and the understanding of the importance of preserving the thoracic space. Improvements in existing techniques and development of new methods have considerably improved the management of this condition. Derotational casting can be considered in children with documented progression of a <60° curve without previous surgical treatment. Both single and dual growing rods are effective, but the latter seem to offer better results. Hybrid constructs may be a better option in children who require a low-profile proximal anchor. The vertical expandable prosthetic titanium rib (VEPTR(®)) appears to be beneficial for patients with congenital scoliosis and fused ribs, and thoracic Insufficiency Syndrome. Children with medical comorbidities who may not tolerate repeated lengthenings should be considered for Shilla or Luque Trolley technique. Growth modulation using shape memory alloy staples or other tethers seem promising for mild curves, although more research is required to define their precise indications. Copyright © 2013 SECOT. Published by Elsevier Espana. All rights reserved.

  14. Surgical Treatment of Adult Degenerative Scoliosis

    OpenAIRE

    Cho, Kyu-Jung; Kim, Young-tae; Shin, Sang-hyun; Suk, Se-Il

    2014-01-01

    The rapid increase of elderly population has resulted in increased prevalence of adult scoliosis. Adult scoliosis is divided into adult idiopathic scoliosis and adult degenerative scoliosis. These two types of scoliosis vary in patient age, curve pattern and clinical symptoms, which necessitate different surgical indications and options. Back pain and deformity are major indications for surgery in adult idiopathic scoliosis, whereas radiating pain to the legs due to foraminal stenosis is what...

  15. Surgical Complications of Cochlear Implantation

    Directory of Open Access Journals (Sweden)

    Basir Hashemi

    2010-03-01

    Full Text Available Cochlear implantation is a method used for the treatment ofpatients with profound hearing loss. This procedure may theaccompanied by some major or minor complications. Weevaluated the surgical complications of cochlear implantationin Fars province (south of Iran. A total of 150 patients withcochlear implantation were enrolled in the present study. Mostof the patients were pre-lingual children and most of our deviceswere nucleus prosthesis. We had three device failuresand four major complications, including one misplaced electrode,one case of meningitis, one case of foreign body reactionto suture and one case with extensive hematoma. Thesecomplications were managed successfully by surgical interventionor re-implantation. Facial nerve damage or woundbreakdown was not seen. Minor complications including smallhematoma, edema, stitch infection and dizziness were found in15 cases, which were managed medically. In our center, therate of minor complications was comparable to other centersin the world. But the rate of major surgical complications waslower than other centers.

  16. American Pediatric Surgical Association

    Science.gov (United States)

    American Pediatric Surgical Association Search for: Login Resources + For Members For Professionals For Training Program Directors For Media For ... Surgical Outcomes Surveys & Results Publications Continuing Education + ExPERT Pediatric Surgery NaT Annual Meeting CME MOC Requirements Residents / ...

  17. Optimizing surgical f

    Directory of Open Access Journals (Sweden)

    Sabry Mohamed Amin

    2016-07-01

    Conclusions: In our study both dexmedetomidine and esmolol were effective in reducing MABP, and lowering the heart rate providing dry surgical field and ensured good surgical condition during cochlear implant surgery in pediatric patients.

  18. Abortion - surgical - aftercare

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000658.htm Abortion - surgical - aftercare To use the sharing features on ... please enable JavaScript. You have had a surgical abortion. This is a procedure that ends pregnancy by ...

  19. Retrieval options study

    Energy Technology Data Exchange (ETDEWEB)

    1980-03-01

    This Retrieval Options Study is part of the systems analysis activities of the Office of Nuclear Waste Isolation to develop the scientific and technological bases for radioactive waste repositories in various geologic media. The study considers two waste forms, high level waste and spent fuel, and defines various classes of waste retrieval and recovery. A methodology and data base are developed which allow the relative evaluation of retrieval and recovery costs and the following technical criteria: safety; technical feasibility; ease of retrieval; probable intact retrieval time; safeguards; monitoring; criticality; and licensability. A total of 505 repository options are defined and the cost and technical criteria evaluated utilizing a combination of facts and engineering judgments. The repositories evaluated are selected combinations of the following parameters: Geologic Media (salt, granite, basalt, shale); Retrieval Time after Emplacement (5 and 25 years); Emplacement Design (nominal hole, large hole, carbon steel canister, corrosion resistant canister, backfill in hole, nominal sleeves, thick wall sleeves); Emplacement Configuration (single vertical, multiple vertical, single horizontal, multiple horizontal, vaults; Thermal Considerations; (normal design, reduced density, once-through ventilation, recirculated ventilation); Room Backfill; (none, run-of-mine, early, 5 year delay, 25 year delay, decommissioned); and Rate of Retrieval; (same as emplacement, variably slower depending on repository/canister condition).

  20. Pawnee Nation Energy Option Analyses

    Energy Technology Data Exchange (ETDEWEB)

    Matlock, M.; Kersey, K.; Riding In, C.

    2009-07-21

    market developments in the bio-energy industry, establish contacts with research institutions with which the tribe could potentially partner in grant-funded research initiatives. In addition, a substantial effort by the Kaw and Cherokee tribes is underway to pursue wind development at the Chilocco School Site in northern Oklahoma where Pawnee is a joint landowner. Pawnee Nation representatives should become actively involved in these development discussions and should explore the potential for joint investment in wind development at the Chilocco site. Financial incentives for project development are generally structured to provide tribes with access to conventional financing mechanisms. Grant funding for project construction is currently difficult to obtain. Substantial new opportunities for bio-fuel development may exist in the next few years with passage of the 2007 Farm Bill, and through opportunities made available through Oklahoma’s new Bio-energy Center. A review of potential alternatives to Pawnee Nation’s current electricity supply scenario revealed that a range of options could be viable. These include the following scenarios: business as usual, alternative supply, negotiate lower rates with City of Pawnee, focus on reducing energy usage, develop electric utility organization. Under any circumstances, Pawnee Nation should purse strategies to reduce energy usage, as this is the simplest means of reducing electric costs and environmental impacts. The research team also recommends that Pawnee Nation initiate some focused discussions with the City of Pawnee, with GRDA, and with IEC to discuss its wholesale supply purchase options. These discussions will better inform the Pawnee Energy Team of the specific pros and cons of its wholesale power supply options, and will assist the Team’s broader decision-making on utility-related issues. The ultimate path chosen by Pawnee Nation will depend on further consideration of priorities and potential barriers by Pawnee

  1. Minimally invasive strategies and options for far-lateral Iumbar disc herniation

    Institute of Scientific and Technical Information of China (English)

    ZHOU Yue; ZHANG Chao; WANG Jian; CHU Tong-wei; LI Chang-qing; ZHANG Zheng-feng; ZHENG wen-jie

    2008-01-01

    Objective: To investigate the surgical procedlures,options and surgical indications for far-lateral lumbar disc herniation between three different minimally invasive procedures.Methods: From January 2000 to October 2006, 52 patients with far-lateral lumbar disc herniation (29 males and 23 females, with the average age of 41.5 years) were treated with minimally invasive procedures. All the patients were assessed by X-ray and CT. Some were given additional myeography, discography, Computerized tomography myelography (CTM) and MRI examination. Yeung Endoscopy Spine System (YESS), METRx and X-tube procedures were performed in 25, 13 and 14 cases, respectively. All patients were followed up for a mean period of 13.5 months. Clinical outcomes were assessed by visual analog score (VAS) and Nakai criteria. Results: The results indicated that the three procedures could significantly improve the radiating leg symptoms (PO.05). The YESS procedure had several advantages including shortest operation time, simplest anesthesia and least trauma as compared with the other two procedures, especially for simple type I far-lateral lumbar disc herniation. METRx procedure was specially suitable for simple type II. And the procedure of posterior endoscopic facetectomy, posterior lumbar interbody fusion and unilateral pedicle screw instrumentation with X-tube was designed for far-lateral disc herniation combined with degenerative lumbar instability. Conclusion: Minimally invasive strategies and options should be determined by different types of far-lateral lumbar disc herniation.

  2. Surgical versus non-surgical treatment of congenital hyperinsulinism.

    Science.gov (United States)

    Mazor-Aronovitch, Kineret; Landau, Heddy; Gillis, David

    2009-03-01

    Congenital hyperinsulinism is a functional disorder of insulin secretion. In its diffuse severe form, it is traditionally treated with over 95% pancreatectomy. However, even after this procedure normoglycemia is not always achieved. Non-surgical therapy with frequent or continuous feeding, medication and close monitoring is another alternative. In this review we compare the two approaches to this condition focusing on early complications, diabetes, neurological outcome and home management issues. Early complications of pancreatectomy include mechanical, metabolic and infectious complications. Non-surgical interventions can be complicated by unwarranted effects of medications and of invasive procedures. Diabetes occurs with both approaches but much less frequently and years later with non-surgical treatment. Regarding neurodevelopmental outcome, most data come from heterogeneous groups. Nevertheless, it appears that outcome is not adversely affected by avoiding surgery. Home management is far more difficult for the non-surgical form. When the non-surgical approach is successful in achieving normoglycemia and parents are highly motivated, this mode of therapy should be considered.

  3. Pre-Surgical Evaluation of Intractable Epilepsy in Children

    Directory of Open Access Journals (Sweden)

    Hadi KAZEMI

    2011-05-01

    Full Text Available

    Objective
    This review summarizes some patterns of pre-surgical evaluation of epilepsyin children with medically refractory seizures. Epilepsy surgery is a valuabletherapeutic option for many children with intractable epilepsy. The most effectivetreatment for intractable partial epilepsy is a focal cortical resection with excisionof the area of ictal onset and initial seizure propagation (the epileptogenic zone.EEG monitoring continues to prove indispensable in pre-surgical planning ofrefractory epileptic patients by defining the epileptogenic zone. Technologicalprogresses in both structural and functional neuroimaging techniques have ledmany medical centers to consider surgical treatment of epilepsy. In childrenundergoing pre-surgical evaluation, the goals of neuroimaging studies includethe identification of structural abnormalities in the brain, eloquent regions of thebrain including language, memory, and sensorimotor functions, and the relationof these regions to the potential epileptogenic region. Neuropsychological testingplays a crucial role in assessing the potential impact of surgery on cognitivefunction of the patients and helps in lateralizing the cerebral hemispheredominant for verbal and nonverbal function in older children. The Wada testis an invasive procedure to determine language dominance and can be usedto assess the risk of postoperative memory deficits in children with temporallobe epilepsy. Some children scheduled for resection still need to undergofurther precise localization of the epileptogenic zone and functional mappingwith invasive EEG monitoring through intracranial subdural grid and/or depthelectrodes. Epilepsy surgery has the potential of changing the life quality ofchildren by improving or eliminating seizures in carefully selected patients.
    Key Words:
    Rrefractory epilepsy; seizure; neuroimaging; EEG monitoring.    

  4. Surgical treatment of primary hyperparathyroidism

    DEFF Research Database (Denmark)

    Brasso, K; Karstrup, S; Lundby, C M

    1994-01-01

    One hundred and two patients with primary hyperparathyroidism underwent a total of 108 bilateral neck explorations with attempted identification and biopsy of all four glands. Hypercalcaemia was surgically eliminated in 97 of 102 patients (95%). Of the remaining hypercalcaemic patients one was cu......--including bilateral neck exploration and attempted biopsies of all parathyroid glands--is safe with a high cure rate....

  5. Posterior fossa meningioma (surgical experiences)

    African Journals Online (AJOL)

    Wael M. Moussa

    2012-08-27

    Aug 27, 2012 ... Morbidity included decreased level of consciousness, cranial nerve palsy and wound infection. ..... (10 cases), trigeminal nerve compression (6 cases), facial nerve .... and magnetic resonance imaging for surgical planning for menin- ... anatomy scanning in the operation of intracranial parasagittal.

  6. Contemporary Review of Grafting Techniques for the Surgical Treatment of Peyronie's Disease.

    Science.gov (United States)

    Hatzichristodoulou, Georgios; Osmonov, Daniar; Kübler, Hubert; Hellstrom, Wayne J G; Yafi, Faysal A

    2017-02-28

    Peyronie's disease (PD) is a benign fibrotic disorder of the tunica albuginea of the penis, which can cause penile pain, curvature, shortening, erectile dysfunction, and psychological distress. Surgery is indicated when penile curvature prevents satisfactory sexual intercourse. Plaque incision or excision with grafting has been suggested as an option in patients with a penile curvature greater than 60°, a shortened penis, and/or an hourglass or complex deformity. To provide an overview of recent studies reporting outcomes of grafting techniques and to report advances in the development of new grafting materials for PD surgery. A literature review was performed through PubMed from 2011 through 2016 regarding grafting techniques for PD. Key words used for the search were grafting techniques, grafts, graft materials, Peyronie's disease, surgical outcomes, and surgical therapy. To report on novel and promising graft materials for PD and to discuss surgical techniques, outcomes, and limitations. Discussed outcomes include postoperative penile straightening, shortening, erectile function, glans sensation, and patient satisfaction. Various surgical techniques and grafting materials can be used for the coverage of the tunica albuginea defect after partial plaque excision or incision. Autologous and non-autologous grafts have been used in this setting. A major advantage of the available "off-the-shelf" grafts is that they do not require donor site harvesting, thus decreasing morbidity and operative time. Tissue-engineered grafts represent the future, but more research is needed to further improve surgical handling and postoperative outcomes. Patients opting for grafting techniques should have sufficient erectile rigidity preoperatively. Surgeon experience, careful patient selection, patient preference, and type of penile deformity affect the choice of graft and surgical approach used. Hatzichristodoulou G, Osmonov D, Kübler H, et al. Contemporary Review of Grafting

  7. Surgical Correction of Nonsyndromic Sagittal Craniosynostosis: Concepts and Controversies.

    Science.gov (United States)

    Simpson, Andrew; Wong, Alison L; Bezuhly, Michael

    2017-01-01

    Sagittal craniosynostosis remains the most common type of isolated craniosynostosis, accounting for nearly half of all nonsyndromic cases. The clinical diagnosis is typically made on the basis of a scaphocephalic head shape and is confirmed by computed tomography or magnetic resonance imaging. The current review examines the major surgical options for correction of isolated sagittal craniosynostosis, including their complications and short- and long-term outcomes. Reconstructive techniques have benefited from advances in perioperative anesthesia monitoring and improved safety of blood transfusion. Although extensive calvarial remodeling is considered safe and may confer greater long-term skull shape correction and decreased neuropsychological sequelae, minimally invasive techniques, such as device-assisted expansion of the cranium continue to increase in popularity. This review underscores the need for additional prospective studies comparing different techniques to determine the optimal reconstructive approach for correction of sagittal craniosynostosis.

  8. Non-transplant surgical alternatives for heart failure

    Institute of Scientific and Technical Information of China (English)

    Robroy H. MacIver; Edwin C. McGee

    2006-01-01

    Although surgical options exist, treatment for heart failure remains dominated by medical therapy. Even with optimal medical therapy, the mortality of heart failure continues to be high. Conventional wisdom in heart failure treatment leads many practitioners to believe that the patient is "too sick" for further operative procedures such as revascularization, valve repair or replacement and ventricular reconstruction. Improvements in intra and peri-operative care over the last 20 years have allowed for more complex procedures to be performed, and have improved the mortality rates of the more traditional surgeries. As the complexity of the operative procedure and morbidity of the patient has elevated so has the importance of a multidisciplinary approach in choosing treatment plans for patients. As the age of the population increases and acute management of ischemic heart disease improves, the prevalence of heart failure will likely increase. Improving access and changing treatment algorithms to include operative procedures can improve the treatment of heart failure patients.

  9. Methodology for ranking restoration options

    DEFF Research Database (Denmark)

    Jensen, Per Hedemann

    1999-01-01

    The work described in this report has been performed as a part of the RESTRAT Project FI4P-CT95-0021a (PL 950128) co-funded by the Nuclear Fission Safety Programme of the European Commission. The RESTRAT project has the overall objective of developinggeneric methodologies for ranking restoration...... techniques as a function of contamination and site characteristics. The project includes analyses of existing remediation methodologies and contaminated sites, and is structured in the following steps:-characterisation of relevant contaminated sites -identication and characterisation of relevant restoration...... techniques -assessment of the radiological impact -development and application of a selection methodology for restoration options -formulation ofgeneric conclusions and development of a manual The project is intended to apply to situations in which sites with nuclear installations have been contaminated...

  10. ATR Spent Fuel Options Study

    Energy Technology Data Exchange (ETDEWEB)

    Connolly, Michael James [Idaho National Lab. (INL), Idaho Falls, ID (United States); Bean, Thomas E. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Brower, Jeffrey O. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Luke, Dale E. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Patterson, M. W. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Robb, Alan K. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Sindelar, Robert [Idaho National Lab. (INL), Idaho Falls, ID (United States); Smith, Rebecca E. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Tonc, Vincent F. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Tripp, Julia L. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Winston, Philip L. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2017-01-01

    The Advanced Test Reactor (ATR) is a materials and fuels test nuclear reactor that performs irradiation services for the U.S. Department of Energy (DOE) Office of Nuclear Energy (NE), Naval Reactors, the National Nuclear Security Administration (NNSA), and other research programs. ATR achieved initial criticality in 1967 and is expected to operate in support of needed missions until the year 2050 or beyond. It is anticipated that ATR will generate approximately 105 spent nuclear fuel (SNF) elements per year through the year 2050. Idaho National Laboratory (INL) currently stores 2,008 ATR SNF elements in dry storage, 976 in wet storage, and expects to have 1,000 elements in wet storage before January 2017. A capability gap exists at INL for long-term (greater than the year 2050) management, in compliance with the Idaho Settlement Agreement (ISA), of ATR SNF until a monitored retrievable geological repository is open. INL has significant wet and dry storage capabilities that are owned by the DOE Office of Environmental Management (EM) and operated and managed by Fluor Idaho, which include the Idaho Nuclear Technology and Engineering Center’s (INTEC’s) CPP-666, CPP-749, and CPP-603. In addition, INL has other capabilities owned by DOE-NE and operated and managed by Battelle Energy Alliance, LLC (BEA), which are located at the Materials and Fuel Complex (MFC). Additional storage capabilities are located on the INL Site at the Naval Reactors Facility (NRF). Current INL SNF management planning, as defined in the Fluor Idaho contract, shows INTEC dry fuel storage, which is currently used for ATR SNF, will be nearly full after transfer of an additional 1,000 ATR SNF from wet storage. DOE-NE tasked BEA with identifying and analyzing options that have the potential to fulfill this capability gap. BEA assembled a team comprised of SNF management experts from Fluor Idaho, Savannah River Site (SRS), INL/BEA, and the MITRE Corp with an objective of developing and analyzing

  11. Surgical castration, coercion and ethics

    DEFF Research Database (Denmark)

    Ryberg, Jesper; Petersen, Thomas Søbirk

    2014-01-01

    that the matter is more complicated than his approach to it suggests. The first thing that adds to the complexity of the discussion concerns the alternative for sex offenders who do not accept the offer of castration. As mentioned, it is likely that these offenders will be kept in prison. McMillan even underlines......John McMillan's detailed ethical analysis concerning the use of surgical castration of sex offenders in the Czech Republic and Germany is mainly devoted to considerations of coercion.1 This is not surprising. When castration is offered as an option to offenders and, at the same time, constitutes...... the only means by which these offenders are likely to be released from prison, it is reasonable—and close to the heart of modern medical ethics—to consider whether the offer involves some kind of coercion. However, despite McMillan's seemingly careful consideration of this question, it appears to us...

  12. Total ankle replacement using HINTEGRA, an unconstrained, three-component system: surgical technique and pitfalls.

    Science.gov (United States)

    Barg, Alexej; Knupp, Markus; Henninger, Heath B; Zwicky, Lukas; Hintermann, Beat

    2012-12-01

    Total ankle replacement (TAR) has become a valuable treatment option in patients with end-stage ankle osteoarthritis. One popular 3-component system, the HINTEGRA TAR, is an unconstrained system that provides inversion-eversion stability. More natural biomechanics of the replaced ankle may be expected when anatomic considerations drive prosthesis design. The HINTEGRA prosthesis includes 2 anatomically contoured metal components and a polyethylene insert, providing axial rotation and physiologic flexion-extension mobility. This article describes the HINTEGRA TAR design and surgical technique. Use of the prosthesis for complex hindfoot reconstruction in patients with an osteoarthritic, varus, or valgus ankle deformity is described.

  13. Surgical intervention for mediastinal pancreatic pseudocysts. A case series and review of the literature.

    Science.gov (United States)

    Metaxa, Dafni; Balakrishnan, Anita; Upponi, Sara; Huguet, Emmanuel L; Praseedom, Raaj K

    2015-01-31

    Development of mediastinal pancreatic pseudocysts is a rare complication of pancreatitis. There is currently no consensus on the optimal management of this condition, options for which include conservative management with somatostatin analogues, endoscopic drainage procedures and surgery. Here we present two patients with mediastinal pancreatic pseudocysts which were initially managed endoscopically. However, in both cases, this led to complications secondary to the endoscopic procedures, recurrence or non-resolution of symptoms, requiring surgical cystogastrostomy and/or cystojejunostomy. These cases suggest that surgery may be ultimately necessary for mediastinal pancreatic pseudocysts where endoscopic procedures might have a high likelihood of failure.

  14. Surgical Lasers In Gynecology

    Science.gov (United States)

    Schellhas, Helmut F.; Barnes, Alfonso E.

    1982-12-01

    Multipurpose surgical CO2 lasers marketed in the USA have been developed to be applicable to a variety of surgical procedures in many surgical fields. They are all suited for endoscopic surgical procedures and can be fitted to all standard surgical microscopes. They all can adjust the focal length of the laser beam to the different standard focal lengths of the surgical microscope which for instance in laryngoscopy is 400 mm and in colposcopy 300 mm. One laser instrument can even change the spot size in a given focal distance which is very advantageous for some microsurgical procedures (Merrimack Laboratories 820). All multipurpose surgical CO2 laser systems provide a multi-articulated surgical arm for free-hand surgery. The surgical arms are cumbersome to use but they are adapted to the surgeons needs with ingenuity. The practicality of the multi-articulated surgical arms depends mostly on the distance of the handpiece from the surgical console which now is also overbridged by the laser tube in most surgical laser system. The spot size of the beam is variable in most handpieces by interchangeable lenses which modify the focal distance of the beam and the power density. Another common feature in all systems is a coaxial He-Ne pilot light which provides a red spot which unfortunately becomes invisible in a bleeding surgical field. Most surgical laser systems have a spacial mode of TEM 00 which is essential for incisional surgery. The continuous mode of beam delivery is used for incisional surgery and also for most endoscopic procedures.

  15. Surgical Management of Local Recurrences of Renal Cell Carcinoma

    Directory of Open Access Journals (Sweden)

    Ömer Acar

    2016-01-01

    Full Text Available Surgical resection either in the form of radical nephrectomy or in the form of partial nephrectomy represents the mainstay options in the treatment of kidney cancer. In most instances, resecting the tumor bearing kidney or the tumor itself provides durable cancer specific survival rates. However, recurrences may rarely develop in the renal fossa or remnant kidney. Despite its rarity, locally recurrent RCC is a challenging condition in terms of the possible management options and relatively poor prognosis. If technically feasible, wide surgical excision and ensuring negative surgical margins are the most effective treatment options. Repeat surgeries (completion nephrectomy, excision of locally recurrent tumor, or repeat partial nephrectomy may often be complicated, and perioperative morbidity is a major concern. Open approach has been extensively applied in this context and 5-year cancer specific survival rates have been reported to be around 50%. The roles of minimally invasive surgical options (laparoscopic and robotic approach and nonsurgical alternatives (cryoablation, radiofrequency ablation have yet to be described. In selected patients, surgical resection may have to be complemented with (neoadjuvant radiotherapy or medical treatment.

  16. Can we measure surgical resilience?

    Science.gov (United States)

    Graham, David; Becerril-Martinez, Guillermo; Quinto, Lena; Zhao, Dong Fang

    2016-01-01

    Surgical resilience describes psychological resilience within a surgical setting. Within a surgical setting, psychologically resilient patients have improved recovery and wound-healing. The search for biological correlates in resilient patients has led to the hypothesis that certain endogenous biomarkers (namely neuropeptide Y (NPY), testosterone, and dehydroepiandrosterone (DHEA)) are altered in resilient patients. The concept of surgical resilience raises the question of whether enhanced recovery following surgery can be demonstrated in patients with high titres of resilience biomarkers as compared to patients with low titres of resilience biomarkers. To determine the prognostic value of resilience biomarkers in surgical recovery, a cohort of patients undergoing major surgery should initially be psychometrically tested for their resilience levels before and after surgery so that biomarker levels of NPY, testosterone and DHEA can be compared to a validated psychometric test of resilience. The primary outcome would be length of hospital stay with and without an enhanced recovery program. Secondary outcome measures such as complications, time in rehabilitation and readmission could also be included. If the hypothesis is upheld, resilience biomarkers could be used to support more individualised perioperative management and lead to more efficient and effective allocation of healthcare resources.

  17. Traumatic foot injuries in horses: surgical management.

    Science.gov (United States)

    Burba, Daniel J

    2013-01-01

    Managing traumatic foot wounds in horses may require surgical intervention. These wounds include coronary-band and heel-bulb lacerations, septic pedal osteitis, septic navicular bursitis, sepsis of the collateral cartilages, and hoof-wall injuries. This article provides a practical overview of the surgical management of these types of wounds.

  18. SURGICAL ORTHODONTICS: LITERATURE REVIEW AND CASE REPORT

    OpenAIRE

    2013-01-01

    Orthognathic surgery is a surgical procedure largely practiced throughout the world for the correction of various maxillofacial deformities. The procedure for correcting a particular deformity will be done after proper evaluation, which includes cephalometric, dental model analysis and photographs. The patient undergoes pre-surgical orthodontic correction for dental compensation, after which surgery is planned. During the last few decades, the profession has witnessed ...

  19. Surgical management of pancreatic neuroendocrine tumors

    NARCIS (Netherlands)

    Jilesen, A.P.J.

    2015-01-01

    This thesis gives an overview of the surgical management and prognosis of patients with pancreatic neuroendocrine tumors (pNET). A systematic review including 2600 studies, was performed on complications and survival after different surgical procedures for pNETs. The overall pancreatic fistula rate

  20. Transcatheter aortic valve prosthesis surgically replaced 4 months after implantation

    DEFF Research Database (Denmark)

    Thyregod, Hans Gustav; Lund, Jens Teglgaard; Engstrøm, Thomas;

    2010-01-01

    Transcatheter aortic valve implantation is a new and rapidly evolving treatment option for high-risk surgical patients with degenerative aortic valve stenosis. Long-term results with these new valve prostheses are lacking, and potential valve dysfunction and failure would require valve replacement....... We report the first case of surgical valve replacement in a patient with a dysfunctional transcatheter-implanted aortic valve prosthesis 4 months after implantation....

  1. 42 CFR 436.229 - Optional targeted low-income children.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 4 2010-10-01 2010-10-01 false Optional targeted low-income children. 436.229... Options for Coverage as Categorically Needy Options for Coverage of Families and Children and Aged, Blind, and Disabled Individuals, Including Pregnant Women § 436.229 Optional targeted low-income children...

  2. GARCH Option Valuation: Theory and Evidence

    DEFF Research Database (Denmark)

    Christoffersen, Peter; Jacobs, Kris; Ornthanalai, Chayawat

    We survey the theory and empirical evidence on GARCH option valuation models. Our treatment includes the range of functional forms available for the volatility dynamic, multifactor models, nonnormal shock distributions as well as style of pricing kernels typically used. Various strategies...

  3. Patients' perceptions of palliative surgical procedures: a qualitative analysis.

    Science.gov (United States)

    Hamilton, Trevor D; Selby, Debbie; Tsang, Melanie E; Kim, Audrey; Wright, Frances C

    2017-08-01

    Patients with incurable malignancies can require surgical intervention. We prospectively evaluated patients treated with palliative surgery to qualitatively assess peri-operative outcomes. Eligible patients were assessed at a tertiary care cancer center. Demographic information and peri-operative morbidity and mortality were collected. Semi-structured qualitative interviews were obtained pre-operatively and post-operatively (1 month). Qualitative evaluation was performed using content analysis and an inductive approach. Twenty-eight patients were approached and 20 consented to interview. Data saturation was achieved after 14 patients. Median patient age was 58% and 56% were female. Peri-operative morbidity and mortality were 44% and 22%, respectively. "No other option" was seen as a dominant pre-operative theme (14 of 18). Other pre-operative themes included a "poor understanding of prognosis and the role of surgery in overall treatment plan". Post-operative themes included a "perceived benefit from surgery" and "satisfaction with decision-making", notwithstanding significant complications. Improved understanding of prognosis and the role of surgery were described post-operatively. Despite limited options and a poor understanding of prognosis, many patients perceived benefit from palliative surgery. However, peri-operative mortality was substantial. A robust and thorough patient-centered discussion about individual goals for surgery should be undertaken by surgeon, patient and family prior to embarking on a palliative operation.

  4. Transoral endoscopic-assisted styloidectomy: How should Eagle syndrome be managed surgically?

    Science.gov (United States)

    Al Weteid, A S; Miloro, M

    2015-09-01

    Eagle syndrome, or calcification of the stylohyoid ligament, is a rare condition that may present a clinical diagnostic dilemma for those unfamiliar with its existence and its typical presenting signs and symptoms. Management of this disease process may involve either non-surgical or surgical treatment options. When surgery is indicated, the choice of a specific surgical modality is highly variable and is generally dependent upon individual surgeon preference and experience, since the location of the styloid process is consistent between patients, and the required surgical access is also similar depending upon the specific surgical plan. This paper reports a case of Eagle syndrome managed with a transoral endoscopic-assisted approach, explores the advantages and disadvantages of each surgical approach, and reviews the literature regarding surgical management options for Eagle syndrome.

  5. Erythritol-Enriched Air-Polishing Powder for the Surgical Treatment of Peri-Implantitis

    Directory of Open Access Journals (Sweden)

    Silvio Taschieri

    2015-01-01

    Full Text Available Peri-implantitis represents a major complication that can compromise the success and survival of implant-supported rehabilitations. Both surgical and nonsurgical treatment protocols were proposed to improve clinical parameters and to treat implants affected by peri-implantitis. A systematic review of the literature was performed on electronic databases. The use of air-polishing powder in surgical treatment of peri-implantitis was investigated. A total of five articles, of different study designs, were included in the review. A meta-analysis could not be performed. The data from included studies reported a substantial benefit of the use of air-polishing powders for the decontamination of implant surface in surgical protocols. A case report of guided bone regeneration in sites with implants affected by peri-implantitis was presented. Surgical treatment of peri-implantitis, though demanding and not supported by a wide scientific literature, could be considered a viable treatment option if an adequate decontamination of infected surfaces could be obtained.

  6. Erythritol-Enriched Air-Polishing Powder for the Surgical Treatment of Peri-Implantitis

    Science.gov (United States)

    Taschieri, Silvio; Weinstein, Roberto

    2015-01-01

    Peri-implantitis represents a major complication that can compromise the success and survival of implant-supported rehabilitations. Both surgical and nonsurgical treatment protocols were proposed to improve clinical parameters and to treat implants affected by peri-implantitis. A systematic review of the literature was performed on electronic databases. The use of air-polishing powder in surgical treatment of peri-implantitis was investigated. A total of five articles, of different study designs, were included in the review. A meta-analysis could not be performed. The data from included studies reported a substantial benefit of the use of air-polishing powders for the decontamination of implant surface in surgical protocols. A case report of guided bone regeneration in sites with implants affected by peri-implantitis was presented. Surgical treatment of peri-implantitis, though demanding and not supported by a wide scientific literature, could be considered a viable treatment option if an adequate decontamination of infected surfaces could be obtained. PMID:26065025

  7. [Surgical and non-surgical management of primary hyperparathyroidism:How do calcimimetics work?

    Science.gov (United States)

    Takeuchi, Yasuhiro

    2017-01-01

    Primary hyperparathyroidism is a common endocrine disease. The first line therapy for the disease is surgical removal of affected parathyroid gland(s). Other therapeutic options with medication are needed to be established, because many of patients with primary hyperparathyroidism have few or no symptoms and are expected to have a long life expectancy without surgery. Cinacalcet as a calcimimetic, bisphosphonates and denosumab are promising candidates for medical management of the disease. Effectiveness and efficiency of these drugs for patients with primary hyperparathyroidism is to be evaluated in comparison with surgical treatment.

  8. Angina pectoris: current therapy and future treatment options.

    Science.gov (United States)

    Parikh, Raj; Kadowitz, Philip J

    2014-02-01

    Angina pectoris is the consequence of an inequality between the demand and supply of blood to the heart. Angina manifests itself as chest pain or discomfort and is a common complaint of patients in the hospital and in the clinic. There are, in fact, roughly half a million new cases of angina per year. Chest pain, while having many etiologies, is generally considered to be most lethal when related to a cardiac cause. In this review, the authors outline the current medical and surgical therapies that are used in the management of angina. Highlights of the various clinical trials that have assisted in the investigation of these therapies are summarized also. Then, the authors provide a focused review of the novel therapy options for angina that are currently being explored. From new medical treatments to revised surgical techniques to the discovery of stem cell therapy, many innovative options are being investigated for the treatment of angina.

  9. Controversial reversal of nuclear option

    OpenAIRE

    2002-01-01

    Nuclear option is in a unique position to restore its original role of the main source of energy with an increased attention paid to the security of electricity supply as well as regulatory changes affecting fossil fuels, particularly with due introduction of climate change prevention measures. Recent developments indicate the advantages of nuclear option over other possible options in terms of sustainable development. However, a large number of controversial issues on nuclear energy make its...

  10. Cross - Currency Hedging Using Options

    OpenAIRE

    Suri, Akshay

    2006-01-01

    In today's competitive global markets, most firms are vulnerable to increasing fluctuation in foreign exchange, which is leading them to make use of Currency Derivatives to hedge their risks. Among the several derivatives available, Currency Options are the second most popular instrument used to hedge currency risk. Options are a very distinctive set of instruments that are available to hedge Currency risk. This study provides empirical evidence on why companies employ Currency Options to hed...

  11. ANALYSIS OF AN INTERDISCIPLINARY OPTIONAL COURSE: GEOINFORMTICS

    Directory of Open Access Journals (Sweden)

    CRISTIAN STĂNILĂ

    2016-01-01

    Full Text Available In the first part, we presented the concept of curriculum and analysed aspects related to the introduction of school-based curriculum in secondary education in Romania. The objective of this study was to analyse the curriculum of a Geoinformatics optional course, the “annual plan”, the “learning unit plan”, the learning activities included in the Geoinformatics optional course, the students’ achievement in this course and their views on the subject matter. In order to identify the students’ opinions about the course, we used the questionnaire as the survey method. We concluded that this optional course met the students’ expectations and interests, being correlated to the prospects of evolution of the knowledge-based society.

  12. Treatment of physeal fractures of the distal radius by volar intrafocal Kapandji method: surgical technique.

    Science.gov (United States)

    Rubin, Guy; Orbach, Hagay; Chezar, Avi; Rozen, Nimrod

    2017-01-01

    Distal radial physeal fractures with volar displacement are rare. Several methods of operative treatment include volar plate without inserting distal screws, percutaneous technique using two anterior skin incisions and reversed Kapandji technique with pins introduced through a posterior approach and locked at the anterior cortex of the fracture. We report three cases along with a literature review of the surgical techniques described in the past and a novel surgical technique for this uncommon fracture termed "Volar Kapandji". All patients had anatomic reduction at the last follow-up radiography, and all patients had a full range of motion and VAS 0 at the last follow-up. No complications were recorded. This case study presents the minimally invasive option for treating rare cases of physeal distal radius fractures with volar displacement. V.

  13. Surgical decision criteria: Bednar tumour of the foot in a child.

    Science.gov (United States)

    Kubiak, Rainer; Weidner, Katrin; Bruder, Elisabeth; Kalbermatten, Daniel F; Haug, Martin

    2011-12-01

    An 8-year-old boy was admitted for excision of a putative 'blue nevus' on the left foot. Histological examination and immunohistochemistry revealed a Bednar tumour, the pigmented variant of dermatofibrosarcoma protuberans. Surgical options considered by a multidisciplinary team included wide local excision, Mohs micrographic surgery or a staged excision with examination of several histological sections. The third alternative procedure was chosen after consideration of tumour and patient factors to achieve the best possible clinical, cosmetic and functional outcome. After the final surgical procedure with resection of the third metatarsal bone, all peripheral margins were free of tumour, and the interdigital space was reconstructed with a pedicled pulpa flap. Three years after surgery, there was no tumour recurrence, and further long-term follow-up for this patient will be provided. Copyright © 2011 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.

  14. Combined surgical and catheter-based treatment of extensive thoracic aortic aneurysm and aortic valve stenosis

    DEFF Research Database (Denmark)

    De Backer, Ole; Lönn, Lars; Søndergaard, Lars

    2015-01-01

    endovascular aneurysm repair (TEVAR) has changed and extended management options in thoracic aorta disease, including in those patients deemed unfit or unsuitable for open surgery. Accordingly, transcatheter aortic valve replacement (TAVR) is increasingly used to treat patients with symptomatic severe aortic...... valve stenosis (AS) who are considered at high risk for surgical aortic valve replacement. In this report, we describe the combined surgical and catheter-based treatment of an extensive TAA and AS. To our knowledge, this is the first report of hybrid TAA repair combined with TAVR.......An extensive thoracic aortic aneurysm (TAA) is a potentially life-threatening condition and remains a technical challenge to surgeons. Over the past decade, repair of aortic arch aneurysms has been accomplished using both hybrid (open and endovascular) and totally endovascular techniques. Thoracic...

  15. Option price and market instability

    Science.gov (United States)

    Baaquie, Belal E.; Yu, Miao

    2017-04-01

    An option pricing formula, for which the price of an option depends on both the value of the underlying security as well as the velocity of the security, has been proposed in Baaquie and Yang (2014). The FX (foreign exchange) options price was empirically studied in Baaquie et al., (2014), and it was found that the model in general provides an excellent fit for all strike prices with a fixed model parameters-unlike the Black-Scholes option price Hull and White (1987) that requires the empirically determined implied volatility surface to fit the option data. The option price proposed in Baaquie and Cao Yang (2014) did not fit the data during the crisis of 2007-2008. We make a hypothesis that the failure of the option price to fit data is an indication of the market's large deviation from its near equilibrium behavior due to the market's instability. Furthermore, our indicator of market's instability is shown to be more accurate than the option's observed volatility. The market prices of the FX option for various currencies are studied in the light of our hypothesis.

  16. ORGANIZATIONAL DEVELOPMENT OPTIONS TOWARDS SUSTAINABILITY

    National Research Council Canada - National Science Library

    Patricia Ingrid, Keller

    2012-01-01

    .... So for the present study we researched the possible strategies, identifying those options to successfully integrate the dimensions of sustainability into organizational development from a systems...

  17. Treatment Options for Narcolepsy.

    Science.gov (United States)

    Barateau, Lucie; Lopez, Régis; Dauvilliers, Yves

    2016-05-01

    Narcolepsy type 1 and narcolepsy type 2 are central disorders of hypersomnolence. Narcolepsy type 1 is characterized by excessive daytime sleepiness and cataplexy and is associated with hypocretin-1 deficiency. On the other hand, in narcolepsy type 2, cerebrospinal fluid hypocretin-1 levels are normal and cataplexy absent. Despite major advances in our understanding of narcolepsy mechanisms, its current management is only symptomatic. Treatment options may vary from a single drug that targets several symptoms, or multiple medications that each treats a specific symptom. In recent years, narcolepsy treatment has changed with the widespread use of modafinil/armodafinil for daytime sleepiness, antidepressants (selective serotonin and dual serotonin and noradrenalin reuptake inhibitors) for cataplexy, and sodium oxybate for both symptoms. Other psychostimulants can also be used, such as methylphenidate, pitolisant and rarely amphetamines, as third-line therapy. Importantly, clinically relevant subjective and objective measures of daytime sleepiness are required to monitor the treatment efficacy and to provide guidance on whether the treatment goals are met. Associated symptoms and comorbid conditions, such as hypnagogic/hypnopompic hallucinations, sleep paralysis, disturbed nighttime sleep, unpleasant dreams, REM- and non REM-related parasomnias, depressive symptoms, overweight/obesity, and obstructive sleep apnea, should also be taken into account and managed, if required. In the near future, the efficacy of new wake-promoting drugs, anticataplectic agents, hypocretin replacement therapy and immunotherapy at the early stages of the disease should also be evaluated.

  18. Pediatric Glaucoma: Pharmacotherapeutic Options.

    Science.gov (United States)

    Samant, Monica; Medsinge, Anagha; Nischal, Ken K

    2016-06-01

    Childhood glaucoma is a major therapeutic challenge for pediatric ophthalmologists and glaucoma specialists worldwide. Management depends on the etiology and age at presentation. A variety of drugs are available for the control of intraocular pressure in children; however, none of these drugs have been licensed by the regulatory agencies for use in children. Furthermore, evidence gained from randomized controlled trials in the pediatric population is sparse, and little is known regarding the use of newer anti-glaucoma preparations. This evidence-based review aims to discuss the available pharmacotherapeutic options for glaucoma in children. Topical adrenoceptor blockers, topical and systemic carbonic anhydrase inhibitors, prostaglandin (PG) analogs, adrenoceptor agonists, parasympathomimetics, and combined preparations are available for use in children, but usually as an off-label indication. Therefore, it is important to recognize that serious side effects have been reported, even with topical drops, and measures to reduce systemic absorption should be taken. Most drugs have been shown to have comparable ocular hypotensive effects, with the lowest occurrence of systemic side effects with PG analogs. Whereas a newly introduced prostaglandin analog, tafluprost, and some other preservative-free preparations have shown promising results in adult glaucoma patients, no pediatric reports are available as yet. Future studies may describe their role in treating pediatric glaucoma. This review also shares some suggested treatment pathways for primary congenital glaucoma (PCG), juvenile open angle glaucoma (JOAG), developmental glaucoma, aphakic/pseudophakic glaucoma, and uveitic glaucoma.

  19. Pharmacological treatment of endometriosis: review of current and new options for treatment

    Directory of Open Access Journals (Sweden)

    Maja Jakič

    2016-10-01

    Full Text Available Endometriosis is a gynecological disease that is defined as the presence of endometrium-like tissue outside the uterine cavity, and it is one of the main causes of female infertility. Although there is unfortunately no known ‘optimal’ treatment for endometriosis, there are three treatment options: medication, surgical treatment, and a combination of both. The gold standard for diagnosis of endometriosis is a diagnostic laparoscopy, which is also therapeutic. Indications for pharmacological treatment of endometriosis include empirical treatment for patients with pelvic pain who are normal on gynecological examination, or who have recurrent disease after surgical treatment or in combination with surgical treatment. In everyday practice, non-steroid anti-inflammatory drugs, oral contraceptives, and progestins per os are used as first-line pharmacological treatments of endometriosis. Gonadoliberin agonists can be used as second-line treatment, although their use is discouraged. These medications can be used alone or in combination. Studies over the last 10 years have shown that many other agents have potential for treatment of endometriosis. These can be broadly classified into several groups: anti-inflammatory agents, and agents that interfere with the hormonal system, or with other pathophysiological processes, such as a disturbed immune system, reduced apoptosis, enhanced angiogenesis, degradation of the extracellular matrix, increased oxidative stress, and epigenetic changes. However, their introduction into routine use requires more convincing clinical studies to confirm their effectiveness.

  20. New Methods with Capped Options for Pricing American Options

    Directory of Open Access Journals (Sweden)

    Dongya Deng

    2014-01-01

    Full Text Available We propose two new methods: improved binomial methods and improved least square MonteCarlo methods (LSM, for pricing American options. These two methods are developed using the nice capped options which have closed-form formulas. Numerical examples are provided to verify that these two new methods are pretty efficient.

  1. Surgical treatment of acute pulmonary embolism--a 12-year retrospective analysis

    DEFF Research Database (Denmark)

    Lehnert, Per; Møller, Christian H; Carlsen, Jørn

    2012-01-01

    Surgical embolectomy for acute pulmonary embolism (PE) is considered to be a high risk procedure and therefore a last treatment option. We wanted to evaluate the procedures role in modern treatment of acute PE....

  2. Strategic Options Development and Analysis

    Science.gov (United States)

    Ackermann, Fran; Eden, Colin

    Strategic Options Development and Analysis (SODA) enables a group or individual to construct a graphical representation of a problematic situation, and thus explore options and their ramifications with respect to a complex system of goals or objectives. In addition the method aims to help groups arrive at a negotiated agreement about how to act to resolve the situation. It is based upon the use of causal mapping - a formally constructed means-ends network - as representation form. Because the picture has been constructed using the natural language of the problem owners it becomes a model of the situation that is ‘owned' by those who define the problem. The use of formalities for the construction of the model makes it amenable to a range of analyses as well as encouraging reflection and a deeper understanding. These analyses can be used in a ‘rough and ready' manner by visual inspection or through the use of specialist causal mapping software (Decision Explorer). Each of the analyses helps a group or individual discover important features of the problem situation, and these features facilitate agreeing agood solution. The SODA process is aimed at helping a group learn about the situation they face before they reach agreements. Most significantly the exploration through the causal map leads to a higher probability of more creative solutions and promotes solutions that are more likely to be implemented because the problem construction process is wider and more likely to include richer social dimensions about the blockages to action and organizational change. The basic theories that inform SODA derive from cognitive psychology and social negotiation, where the model acts as a continuously changing representation of the problematic situation - changing as the views of a person or group shift through learning and exploration. This chapter, jointly written by two leading practitioner academics and the original developers of SODA, Colin Eden and Fran Ackermann

  3. Methodology for ranking restoration options

    Energy Technology Data Exchange (ETDEWEB)

    Hedemann Jensen, Per

    1999-04-01

    The work described in this report has been performed as a part of the RESTRAT Project FI4P-CT95-0021a (PL 950128) co-funded by the Nuclear Fission Safety Programme of the European Commission. The RESTRAT project has the overall objective of developing generic methodologies for ranking restoration techniques as a function of contamination and site characteristics. The project includes analyses of existing remediation methodologies and contaminated sites, and is structured in the following steps: characterisation of relevant contaminated sites; identification and characterisation of relevant restoration techniques; assessment of the radiological impact; development and application of a selection methodology for restoration options; formulation of generic conclusions and development of a manual. The project is intended to apply to situations in which sites with nuclear installations have been contaminated with radioactive materials as a result of the operation of these installations. The areas considered for remedial measures include contaminated land areas, rivers and sediments in rivers, lakes, and sea areas. Five contaminated European sites have been studied. Various remedial measures have been envisaged with respect to the optimisation of the protection of the populations being exposed to the radionuclides at the sites. Cost-benefit analysis and multi-attribute utility analysis have been applied for optimisation. Health, economic and social attributes have been included and weighting factors for the different attributes have been determined by the use of scaling constants. (au)

  4. Principles and Applications of Surgical Oncology in Exotic Animals.

    Science.gov (United States)

    Steffey, Michele A

    2017-01-01

    The diagnosis and treatment of cancer in exotic species is a rapidly evolving area of veterinary medicine. In general, surgical excision remains pivotal in cancer treatment, although optimal outcomes are achieved when a coherent and thorough diagnostic and therapeutic plan is created prior to surgery. While surgical cure is not always achieveable, multimodal treatment plans can offer a variety of options, and palliative procedures may be used to improve quality of life. Treatment goals, whether curative intent or palliative intent, should be identified before surgery, and practitioners should endeavor to adhere to surgical principles in order to attain the best outcomes.

  5. Fast Spectrum Molten Salt Reactor Options

    Energy Technology Data Exchange (ETDEWEB)

    Gehin, Jess C [ORNL; Holcomb, David Eugene [ORNL; Flanagan, George F [ORNL; Patton, Bruce W [ORNL; Howard, Rob L [ORNL; Harrison, Thomas J [ORNL

    2011-07-01

    During 2010, fast-spectrum molten-salt reactors (FS-MSRs) were selected as a transformational reactor concept for light-water reactor (LWR)-derived heavy actinide disposition by the Department of Energy-Nuclear Energy Advanced Reactor Concepts (ARC) program and were the subject of a preliminary scoping investigation. Much of the reactor description information presented in this report derives from the preliminary studies performed for the ARC project. This report, however, has a somewhat broader scope-providing a conceptual overview of the characteristics and design options for FS-MSRs. It does not present in-depth evaluation of any FS-MSR particular characteristic, but instead provides an overview of all of the major reactor system technologies and characteristics, including the technology developments since the end of major molten salt reactor (MSR) development efforts in the 1970s. This report first presents a historical overview of the FS-MSR technology and describes the innovative characteristics of an FS-MSR. Next, it provides an overview of possible reactor configurations. The following design features/options and performance considerations are described including: (1) reactor salt options-both chloride and fluoride salts; (2) the impact of changing the carrier salt and actinide concentration on conversion ratio; (3) the conversion ratio; (4) an overview of the fuel salt chemical processing; (5) potential power cycles and hydrogen production options; and (6) overview of the performance characteristics of FS-MSRs, including general comparative metrics with LWRs. The conceptual-level evaluation includes resource sustainability, proliferation resistance, economics, and safety. The report concludes with a description of the work necessary to begin more detailed evaluation of FS-MSRs as a realistic reactor and fuel cycle option.

  6. Expanding contraceptive options.

    Science.gov (United States)

    1989-01-01

    The goals of Family Health International (FHI) have been to introduce a variety of birth control options to people in developing countries, and to provide information to the user on the advantages and disadvantages of each method. FHI has worked with many developing countries in clinical trials of established as well as new contraceptive methods. These trials played an important part in making 2 sterilization procedures, laparoscopy and minilaparotomy popular for women. Further research improved the methods and have made them the most popular in the world, chosen by 130 million users. FHI is doing clinical trials on a new IUD, that is a copper bearing T-shaped device called the TCu380A. they have collected data on over 10,000 women using IUD's and early analysis indicates TCu380A is more effective than others. FHI is also evaluating devices such as Norplant that will prevent pregnancy up to 5 years by implanting the capsules in the arm. More than 8,000 women are being tested to determine the acceptability of implants in different geographical locations. Other research groups are doing work in 10 additional countries: Bangladesh will expand its program to 24,000 women and Nepal to 8,000 women. Trials are also being conducted on progestogen pills, since they do not lesson the volume of milk in breast feeding. FHI has also worked to introduce creative community-based distribution channels. In one case, specially trained health workers delivered contraceptives door-to-door in over 150,000 households. They found that 2 of 3 women accepted the pills and in a follow up survey 90% were still using them. FHI is now focusing on ways to improve moving new contraceptives from clinical testing on everyday use. They will coordinate training programs, educational material, media campaigns, and efforts with other international organizations, government agencies, and family planning groups.

  7. Option generation in decision making: Ideation beyond memory retrieval

    Directory of Open Access Journals (Sweden)

    Fabio eDel Missier

    2015-01-01

    Full Text Available According to prescriptive decision theories, the generation of options for choice is a central aspect of decision making. A too narrow representation of the problem may indeed limit the opportunity to evaluate promising options. However, despite the theoretical and applied significance of this topic, the cognitive processes underlying option generation are still unclear. In particular, while a cued recall account of option generation emphasizes the role of memory and executive control, other theoretical proposals stress the importance of ideation processes based on various search and thinking processes. Unfortunately, relevant behavioral evidence on the cognitive processes underlying option generation is scattered and inconclusive. In order to reach a better understanding, we carried out an individual-differences study employing a wide array of cognitive predictors, including measures of episodic memory, semantic memory, cognitive control, and ideation fluency. The criterion tasks consisted of three different poorly-structured decision-making scenarios, and the participants were asked to generate options to solve these problems. The main criterion variable of the study was the number of valid options generated, but also the diversity and the quality of generated options were examined. The results showed that option generation fluency and diversity in the context of ill-structured decision making are supported by ideation ability even after taking into account the effects of individual differences in several other aspects of cognitive functioning. Thus, ideation processes, possibly supported by search and thinking processes, seem to contribute to option generation beyond basic associative memory retrieval. The findings of the study also indicate that generating more options may have multifaceted consequences for choice, increasing the quality of the best option generated but decreasing the mean quality of the options in the generated set.

  8. Revascularization options in patients with chronic kidney disease.

    Science.gov (United States)

    Ashrith, Guha; Elayda, MacArthur A; Wilson, James M

    2010-01-01

    Cardiovascular disease is the leading cause of death in patients who have chronic kidney disease or end-stage renal disease and are undergoing hemodialysis. Chronic kidney disease is a recognized risk factor for premature atherosclerosis. Unfortunately, most major randomized clinical trials that form the basis for evidence-based use of revascularization procedures exclude patients who have renal insufficiency. Retrospective, observational studies suggest that patients with end-stage renal disease and severe coronary occlusive disease have a lower risk of death if they undergo coronary revascularization rather than medical therapy alone. Due to a lack of prospective studies, however, the relative merits of percutaneous versus surgical revascularization are merely a matter of opinion. Several small, retrospective studies have shown that coronary artery bypass grafting is associated with higher procedural death but better long-term survival than is percutaneous coronary intervention. This difference appears to result from poor long-term results of percutaneous coronary intervention in patients who have chronic kidney disease or end-stage renal disease.Because randomized trials comparing percutaneous coronary intervention and coronary artery bypass grafting have included patients undergoing balloon angioplasty and placement of bare-metal stents, their conclusions are suspect in the era of drug-eluting stents. In this review, we discuss different revascularization options for patients with chronic kidney disease, the outcomes of revascularization procedures, and the risk factors for adverse outcomes.

  9. Curative treatment of oesophageal carcinoma: current options and future developments

    Directory of Open Access Journals (Sweden)

    Bruns Christiane

    2011-05-01

    Full Text Available Abstract Since the 1980s major advances in surgery, radiotherapy and chemotherapy have established multimodal approaches as curative treatment options for oesophageal cancer. In addition the introduction of functional imaging modalities such as PET-CT created new opportunities for a more adequate patient selection and therapy response assessment. The majority of oesophageal carcinomas are represented by two histologies: squamous cell carcinoma and adenocarcinoma. In recent years an epidemiological shift towards the latter was observed. From a surgical point of view, adenocarcinomas, which are usually located in the distal third of the oesophagus, may be treated with a transhiatal resection, whereas squamous cell carcinomas, which are typically found in the middle and the upper third, require a transthoracic approach. Since overall survival after surgery alone is poor, multimodality approaches have been developed. At least for patients with locally advanced tumors, surgery alone can no longer be advocated as routine treatment. Nowadays, scientific interest is focused on tumor response to induction radiochemotherapy. A neoadjuvant approach includes the early and accurate assessment of clinical response, optimally performed by repeated PET-CT imaging and endoscopic ultrasound, which may permit early adaption of the therapeutic concept. Patients with SCC that show clinical response by PET CT are considered to have a better prognosis, regardless of whether surgery will be performed or not. In non-responding patients salvage surgery improves survival, especially if complete resection is achieved.

  10. Surgical procedures in pinniped and cetacean species.

    Science.gov (United States)

    Higgins, Jennifer L; Hendrickson, Dean A

    2013-12-01

    Significant advances in veterinary diagnostic and surgical techniques have been made over the past several decades. Many of these advances, however, have not reached the field of marine mammal medicine. A number of limitations exist: risks of anesthesia, anatomical challenges, difficulties with wound closure, environmental constraints, equipment limitations, and perceived risks. Despite these limitations, surgical treatments have been successfully utilized in marine mammals. While surgery is performed in pinnipeds more frequently than in cetaceans, studies conducted in the 1960s and 1970s on dolphin sleep and hearing demonstrated that general anesthesia can be successfully induced in cetaceans. Since this pioneering work, a small number of successful surgeries have been performed in dolphins under both general anesthesia and heavy sedation. While these surgical procedures in pinnipeds and cetaceans have typically been limited to wound management, dentistry, ophthalmic procedures, fracture repair, and superficial biopsy, a number of abdominal surgeries have also been performed. Recently there have been pioneering successes in the application of minimally invasive surgery in marine mammals. Many of the anatomical challenges that almost prohibit traditional laparotomies in cetacean species and present challenges in pinnipeds can be overcome through the use of laparoscopic techniques. Due to the limited number of pinnipeds and cetaceans in captivity and, thus, the limited case load for veterinarians serving marine mammal species, it is vital for knowledge of surgical procedures to be shared among those in the field. This paper reviews case reports of surgical procedures, both traditional and laparoscopic, in pinnipeds and cetaceans. Limitations to performing surgical procedures in marine mammals are discussed and surgical case reports analyzed in an effort to determine challenges that must be overcome in order to make surgery a more feasible diagnostic and treatment

  11. Surgical ethics and the challenge of surgical innovation.

    Science.gov (United States)

    Angelos, Peter

    2014-12-01

    Surgical ethics as a specific discipline is relatively new to many. Surgical ethics focuses on the ethical issues that are particularly important to the care of surgical patients. Informed consent for surgical procedures, the level of responsibility that surgeons feel for their patients' outcomes, and the management of surgical innovation are specific issues that are important in surgical ethics and are different from other areas of medicine. The future of surgical progress is dependent on surgical innovation, yet the nature of surgical innovation raises specific concerns that challenge the professionalism of surgeons. These concerns will be considered in the following pages.

  12. Greenhouse Gas Mitigation Options Database(GMOD)and Tool

    Science.gov (United States)

    Greenhouse Gas Mitigation Options Database (GMOD) is a decision support database and tool that provides cost and performance information for GHG mitigation options for the power, cement, refinery, landfill and pulp and paper sectors. The GMOD includes approximately 450 studies fo...

  13. INVESTMENT IN ANTIVIRAL DRUGS : A REAL OPTIONS APPROACH

    NARCIS (Netherlands)

    Attema, Arthur E.; Lugner, Anna K.; Feenstra, Talitha L.

    2010-01-01

    Real options analysis is a promising approach to model investment under uncertainty. We employ this approach to value stockpiling of antiviral drugs as a precautionary measure against a possible influenza pandemic. Modifications of the real options approach to include risk attitude and deviations fr

  14. INVESTMENT IN ANTIVIRAL DRUGS : A REAL OPTIONS APPROACH

    NARCIS (Netherlands)

    Attema, Arthur E.; Lugner, Anna K.; Feenstra, Talitha L.

    2010-01-01

    Real options analysis is a promising approach to model investment under uncertainty. We employ this approach to value stockpiling of antiviral drugs as a precautionary measure against a possible influenza pandemic. Modifications of the real options approach to include risk attitude and deviations

  15. Parental knowledge in pediatric otolaryngology surgical consultations: A qualitative content analysis.

    Science.gov (United States)

    Gorodzinsky, Ayala Y; Hong, Paul; Chorney, Jill MacLaren

    2015-07-01

    To understand the source of parents' knowledge prior to and desire for further information following pediatric otolaryngology surgical consultations. Mixed-methods approach using descriptive and qualitative content analysis of interviews with parents following otolaryngology consultations for children under the age of 6 years was performed. The children were being seen for either tonsillitis, obstructive sleep apnea, otitis media, and/or sinusitis/nasal obstruction. Forty-one parents completed a phone interview two weeks following their child's surgical consultation. The majority of parents indicated that their primary care physician referred their child for either: investigation of symptoms (50%), to have a specific discussion about surgery (27.5%), or because other treatment options were no longer working (20%). Many parents (56.5%) indicated that the Internet was their primary source of information prior to the appointment. Most parents (93%) wanted more information; majority of these parents noted that a technology-based mode of delivery of information available prior to the appointment would be most desirable. Desired information was most often regarding the surgical procedure, including risks and benefits, and symptoms of concern prior to surgery. This study provides a description of parental knowledge and information sources prior to their child's surgical consultation and continued desire for information. This information may lead to decreased knowledge barriers and increased communication to facilitate shared decision-making between the provider and parents. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  16. Surgical voice restoration after total laryngectomy: An overview

    Directory of Open Access Journals (Sweden)

    B Elmiyeh

    2010-01-01

    Full Text Available Total laryngectomy is potentially a debilitative surgery resulting in compromise of some of the most basic functions of life including speech and swallowing. This may have a profound adverse effect on the patient′s physical, functional, and emotional health, and may result in a decreased quality of life (QOL. Until the 1980s, total laryngectomy was regarded as a dreadful, but often, life-saving procedure for which there was little alternative, and was used as a last resort. At that time survival at any cost in terms of QOL was paramount and many laryngectomies were forced into an isolated life as a mute and dysphasic recluse. Most attempts at voice restoration produced inconsistent results and often techniques were laborious, expensive, and ineffective, particularly when carried out as a salvage procedure after failed radiotherapy. Progress in voice rehabilitation, following total laryngectomy, over the last 30 years, has made an enormous difference in the whole concept of the management of laryngeal cancers. Currently there are several options available for these patients, namely, esophageal speech, artificial larynx, and tracheoesophageal speech. The choice of speech rehabilitation varies from patient to patient, but tracheoesophageal voice has become the preferred method. This article provides a brief account of surgical voice restoration after total laryngectomy. Special emphasis has been given to the surgical technique, special considerations, complications, and the prevention / treatment of tracheoesophageal voice restoration.

  17. Successful surgical management of ruptured umbilical hernias in cirrhotic patients.

    Science.gov (United States)

    Chatzizacharias, Nikolaos A; Bradley, J Andrew; Harper, Simon; Butler, Andrew; Jah, Asif; Huguet, Emmanuel; Praseedom, Raaj K; Allison, Michael; Gibbs, Paul

    2015-03-14

    Acute umbilical hernia rupture in patients with hepatic cirrhosis and ascites is an unusual, but potentially life-threatening complication, with postoperative morbidity about 70% and mortality between 60%-80% after supportive care and 6%-20% after urgent surgical repair. Management options include primary surgical repair with or without concomitant portal venous system decompression for the control of the ascites. We present a retrospective analysis of our centre's experience over the last 6 years. Our cohort consisted of 11 consecutive patients (median age: 53 years, range: 36-63 years) with advanced hepatic cirrhosis and refractory ascites. Appropriate patient resuscitation and optimisation with intravenous fluids, prophylactic antibiotics and local measures was instituted. One failed attempt for conservative management was followed by a successful primary repair. In all cases, with one exception, a primary repair with non-absorbable Nylon, interrupted sutures, without mesh, was performed. The perioperative complication rate was 25% and the recurrence rate 8.3%. No mortality was recorded. Median length of hospital stay was 14 d (range: 4-31 d). Based on our experience, the management of ruptured umbilical hernias in patients with advanced hepatic cirrhosis and refractory ascites is feasible without the use of transjugular intrahepatic portosystemic shunt routinely in the preoperative period, provided that meticulous patient optimisation is performed.

  18. Surgical ventricular restoration for the treatment of heart failure.

    Science.gov (United States)

    Buckberg, Gerald; Athanasuleas, Constantine; Conte, John

    2012-12-01

    Heart failure (HF) is an emerging epidemic affecting 15 million people in the USA and Europe. HF-related mortality was unchanged between 1995 and 2009, despite a decrease in the incidence of cardiovascular disease. Conventional explanations include an aging population and improved treatment of acute myocardial infarction and HF. An adverse relationship between structure and function is the central theme in patients with systolic dysfunction. The normal elliptical ventricular shape becomes spherical in ischemic, valvular, and nonischemic dilated cardiomyopathy. Therapeutic decisions should be made on the basis of ventricular volume rather than ejection fraction. When left ventricular end-systolic volume index exceeds 60 ml/m², medical therapy, CABG surgery, and mitral repair have limited benefit. This form-function relationship can be corrected by surgical ventricular restoration (SVR), which returns the ventricle to a normal volume and shape. Consistent early and late benefits in the treatment of ischemic dilated cardiomyopathy with SVR have been reported in >5,000 patients from various international centers. The prospective, randomized STICH trial did not confirm these findings and the reasons for this discrepancy are examined in detail. Future surgical options for SVR in nonischemic and valvular dilated cardiomyopathy, and its integration with left ventricular assist devices and cell therapy, are described.

  19. Lumbopelvic fixation: a surgical alternative for lumbar stability

    Directory of Open Access Journals (Sweden)

    Gabriel Virgilio Ortiz García

    2014-09-01

    Full Text Available OBJECTIVE: Lumbopelvic fixation is a valid surgical option to achieving great stability in cases where it is particularly demanded, such as in patients with poor quality bone, degenerative scoliosis, and revision surgeries with modern materials and techniques. It enables simple integration of the iliopelvic systems with the rest of the spinal structure, maintaining hemorrhagia at acceptable levels, as well as surgery time. METHODS: We analyzed a case series of 15 patients of our center, who required major construction and/or presented poor quality bone. RESULTS: A total of 15 patients was studied, of which 12 (80% were women and three (20%, men. Nine (60% of these were revision surgeries, maintaining a surgery time of 5 hours (±1 h, with average blood loss of 1380 ml (±178 ml. All the patients received six to eight transpedicular screws, including iliac screws, and in all cases, a bone graft was inserted. CONCLUSION: Lumbopelvic fixation in patients with characteristics associated with osteopenia and osteoporosis, and in major instrumentations, particularly revision surgeries, three-dimensional correction is achieved, constructing a strong, stable pelvic base that is very useful, in patients with fragile surgical anatomy, for changes of implant or extensive decompression, provided the arthrodesis technique is adequate and with the insertion of a sufficient bone graft, and obviously, taking care to maintain the sagittal balance.

  20. Surgical pitfalls with custom-made porous hydroxyapatite cranial implants

    Directory of Open Access Journals (Sweden)

    Bruno Zanotti

    2015-03-01

    Full Text Available Aim: Cranioplasty implants are used primarily in cases of surgical cranial decompression following pathological elevations of intracranial pressure. Available bone substitutes include porous hydroxyapatite (HA and polymethylmethacrylate. Whichever material is used, however, prosthetic cranial implants are susceptible to intra- and postsurgical complications and even failure. The aim of this study was to investigate such occurrences in HA cranioplasty implants, seeking not only to determine the likely causes (whether correlated or not with the device itself but also, where possible, to suggest countermeasures. Methods: We analyzed information regarding failures or complications reported in postmarketing surveillance and clinical studies of patients treated worldwide with custom-made HA cranial implants (Custom Bone Service Fin-Ceramica Faenza, Italy in the period 1997-2013. Results: The two most common complications were implant fractures (84 cases, 2.9% of the total fitted and infections (51 cases, 1.77%. Conclusion: Although cranioplasties are superficial and not difficult types of surgery, and use of custom-made implants are often considered the "easy" option from a surgical perspective, these procedures are nonetheless plagued by potential pitfalls. If performed well they yield more than satisfactory results from the points of view of both the patient and surgeon, but lack of appropriate care can open the door to numerous potential sources of failure, which can compromise-even irreparably-the ability to heal.

  1. Recognizing surgical patterns

    NARCIS (Netherlands)

    Bouarfa, L.

    2012-01-01

    In the Netherlands, each year over 1700 patients die from preventable surgical errors. Numerous initiatives to improve surgical practice have had some impact, but problems persist. Despite the introduction of checklists and protocols, patient safety in surgery remains a continuing challenge. This is

  2. Surgical medical record

    DEFF Research Database (Denmark)

    Bulow, S.

    2008-01-01

    A medical record is presented on the basis of selected linguistic pearls collected over the years from surgical case records Udgivelsesdato: 2008/12/15......A medical record is presented on the basis of selected linguistic pearls collected over the years from surgical case records Udgivelsesdato: 2008/12/15...

  3. Extended endoscopic endonasal transsphenoidal approach for retrochiasmatic craniopharyngioma: Surgical technique and results

    Directory of Open Access Journals (Sweden)

    Suresh K Sankhla

    2015-01-01

    Full Text Available Objective: Surgical treatment of retrochiasmatic craniopharyngioma still remains a challenge. While complete removal of the tumor with preservation of the vital neurovascular structures is often the goal of the treatment, there is no optimal surgical approach available to achieve this goal. Transcranial and transsphenoidal microsurgical approaches, commonly used in the past, have considerable technical limitations. The extended endonasal endoscopic surgical route, obtained by removal of tuberculum sellae and planum sphenoidale, offers direct midline access to the retrochiasmatic space and provides excellent visualization of the undersurface of the optic chiasm. In this report, we describe the technical details of the extended endoscopic approach, and review our results using this approach in the surgical management of retrochiasmatic craniopharyngiomas. Methods: Fifteen children, including 9 girls and 6 boys, aged 8 to 15 years underwent surgery using extended endoscopic transsphenoidal approach between 2008 and 2014. Nine patients had a surgical procedure done previously and presented with recurrence of symptoms and regrowth of their residual tumors. Results: A gross total or near total excision was achieved in 10 (66.7% patients, subtotal resection in 4 (26.7%, and partial removal in 1 (6.7% patient. Postoperatively, headache improved in 93.3%, vision recovered in 77.3%, and the hormonal levels stabilised in 66.6%. Three patients (20% developed postoperative CSF leaks which were managed conservatively. Three (20% patients with diabetes insipidus and 2 (13.3% with panhypopituitarism required long-term hormonal replacement therapy. Conclusions: Our early experience suggests that the extended endonasal endoscopic approach is a reasonable option for removal of the retrochiasmal craniopharyngiomas. Compared to other surgical approaches, it provides better opportunities for greater tumor removal and visual improvement without any increase in risks.

  4. [Surgical education has its price].

    Science.gov (United States)

    Schröder, W; Krones, C J

    2012-04-01

    The radical economisation of the German health-care system has caused an increasing cost awareness. Following this trend, medical education has been identified as a possible expense factor. The theoretical and practical training of young doctors needs time and costs money. However, a detailed cost analysis is still not available, since the complex daily work schedule of young professionals only allows the calculation of single cost factors. Investigations in the USA estimate the costs of surgical training at US$ 80 000 per year and per resident. At present in Germany, surgical training is indirectly financed by the DRG flat rates of the health insurance companies. Possible alternatives include the implementation of a "training fond" which is financed by a percentage fee of the DRG's as well as an on-top funding by the federal government. This "training fond" would support only those surgical units that offer a structured and certified training to surgical residents. However, a systematic cost analysis of such a structured curriculum is necessary for any further discussion.

  5. Disparities between industrial and surgical ergonomics.

    Science.gov (United States)

    Seagull, F Jacob

    2012-01-01

    A surgeon's work environment and working conditions are often harsher than those of an industrial worker. Accepted principles and regulations of ergonomics in manufacturing are largely ignored or absent in the medical/surgical domain. Examples include poor surgical tool handle design, awkward and stressful surgical postures, and prolonged standing without breaks and without a foot mat. In these and other areas, there are documented "best practices" for industrial hygiene and ergonomics that are not yet widely accepted for surgery. There is support in the literature for innovations in surgical ergonomics, yet adoption is not widespread. In the absence of these ergonomic principles, surgical repetitive strain injuries in minimally invasive surgery are reaching epidemic levels. As ergonomists, it falls upon us to understand why current solutions have not been widely adopted within this domain, and to derive solutions to the unique challenges of surgery.

  6. 21 CFR 878.4370 - Surgical drape and drape accessories.

    Science.gov (United States)

    2010-04-01

    ... (CONTINUED) MEDICAL DEVICES GENERAL AND PLASTIC SURGERY DEVICES Surgical Devices § 878.4370 Surgical drape... site of surgical incision from microbial and other contamination. The device includes a plastic wound... insertion of the surgeon's finger into the rectum during performance of a transurethral prostatectomy....

  7. Making real options really work.

    Science.gov (United States)

    van Putten, Alexander B; MacMillan, Ian C

    2004-12-01

    As a way to value growth opportunities, real options have had a difficult time catching on with managers. Many CFOs believe the method ensures the overvaluation of risky projects. This concern is legitimate, but abandoning real options as a valuation model isn't the solution. Companies that rely solely on discounted cash flow (DCF) analysis underestimate the value of their projects and may fail to invest enough in uncertain but highly promising opportunities. CFOs need not--and should not--choose one approach over the other. Far from being a replacement for DCF analysis, real options are an essential complement, and a project's total value should encompass both. DCF captures a base estimate of value; real options take into account the potential for big gains. This is not to say that there aren't problems with real options. As currently applied, they focus almost exclusively on the risks associated with revenues, ignoring the risks associated with a project's costs. It's also true that option valuations almost always ignore assets that an initial investment in a subsequently abandoned project will often leave the company. In this article, the authors present a simple formula for combining DCF and option valuations that addresses these two problems. Using an integrated approach, managers will, in the long run, select better projects than their more timid competitors while keeping risk under control. Thus, they will outperform their rivals in both the product and the capital markets.

  8. Primary treatment options for high risk/medically inoperable early stage NSCLC patients

    Science.gov (United States)

    Jones, Guy C.; Kehrer, Jason D.; Kahn, Jenna; Koneru, Bobby N.; Narayan, Ram; Thomas, Tarita O.; Camphausen, Kevin; Mehta, Minesh P; Kaushal, Aradhana

    2015-01-01

    Lung cancer is among the most common cancers worldwide, and the leading cause of cancer death in both men and women. For patients with early stage (AJCC T1-2, N0) non-small cell lung cancer the current standard of care is lobectomy with systematic lymph node evaluation. Unfortunately, medical comorbities often present in patients with lung cancer, may preclude the option of surgical resection . In such cases, a number of minimal to non-invasive treatment options have gained popularity in the treatment of these high-risk patients. These modalities provide significant advantages including patient convenience, treatment in an outpatient setting, and acceptable toxicities including reduced impact on lung function and a modest risk of post-procedure chest wall pain. This manuscript seeks to provide a comprehensive review of the literature including reported outcomes, complications and limitations of sublobar resection with or without intraoperative brachytherapy, radiofrequency ablation, microwave ablation, percutaneous cryoablation, photodynamic therapy and stereotactic body radiation therapy. PMID:26027433

  9. Surgical anatomy of hand allotransplantation.

    Science.gov (United States)

    Carlsen, Brian T; Al-Mufarrej, Faisal; Moran, Steven L

    2013-07-01

    The hand is the most refined anatomical terminal device known and the leading edge of the sensorium. Further, the hand is second only to the face in terms of visibility and is a vitally important aspect aesthetic and body image. Hand amputation represents a devastating loss of function and independence. Restoring function after limb loss is a challenge and traditionally includes autologous methods and prosthetics. In the last 15 years, hand transplantation has become a viable option for select patients.

  10. Management of refractory atrial fibrillation post surgical ablation

    OpenAIRE

    Altman, Robert K.; PROIETTI, RICCARDO; Barrett, Conor D.; Paoletti Perini, Alessandro; Santangeli, Pasquale; Danik, Stephan B.; Di Biase, Luigi; Natale, Andrea

    2014-01-01

    Over the past two decades, invasive techniques to treat atrial fibrillation (AF) including catheter-based and surgical procedures have evolved along with our understanding of the pathophysiology of this arrhythmia. Surgical treatment of AF may be performed on patients undergoing cardiac surgery for other reasons (concomitant surgical ablation) or as a stand-alone procedure. Advances in technology and technique have made surgical intervention for AF more widespread. Despite improvements in out...

  11. Orthodontic-surgical treatment of a severe class III malocclusion

    Directory of Open Access Journals (Sweden)

    Pakpahan Evie Lamtiur

    2013-12-01

    Full Text Available Background: Adult patient with dentofacial deformities usually need surgical orthodontic treatment. Although case of class II dentofacial deformities are more common, the need for treatment and improvement in term of facial profile is generally greater in class III patients. When a skeletal Class III malocclusion is diagnosed, orthognathic surgery is always considered if the orthodontist and patient desire complete correction of the skeletal discrepancy. Purpose: The purpose of this article were to reported a case of severe class III malocclusion and to showed the positive effect of orthognatic surgical treatment on the patient’s profile. Case: This case report describes the surgical-orthodontic treatment of a 20 year old male patient with class III dentofacial deformity. Case managements: To allow adequate surgical movement, both maxillary first premolars were extracted, and the maxillary incisors were retracted. No extractions were performed in the mandibular arch. Surgery included a Le Fort I osteotomy with 8 mm advancement, a bilateral sagittal split osteotomy with the mandibula was set back 13 mm at right side and 11 mm at left side for the correction of dental midline and chin deviation. The genioplasty treatment also was done. Conclusion: Surgical-orthodontic treatment could be chosen as a treatment option for achieving an acceptable occlusion and a good esthetic result in a patient with a Class III dentofacial deformity. Nevertheless, it should be performed by a multidisciplinary team to ensure a satisfactory outcome.Latar belakang: Pasien dewasa dengan deformitas dentofacial biasanya ditangani dengan perawatan bedah orthodonti. Walaupun kasus deformitas dentofacial klas II lebih sering dijumpai, namun kebutuhan perawatan dan keinginan untuk memperbaiki profil muka lebih tinggi pada pasien dengan kasus klas III. Untuk koreksi kelainan skeletal secara menyeluruh pada maloklusi skeletal klas III maka dibutuhkan perawatan bedah ortodonti

  12. Role of surgical resection in treatment of pancreatic adenocarcinoma

    Directory of Open Access Journals (Sweden)

    Milošević Pavle

    2011-01-01

    Full Text Available Introduction. Pancreatic adenocarcinoma is the fifth leading cause of death from malignant diseases. The total five-year rate is bellow 5%, but in patients who underwent pancreatic resection, the fiveyear rate may be up to 20%. Surgical resection is still the only therapeutic option that offers the possibility of cure. In recent decades, the perioperative mortality rate has been significantly reduced in the institutions performing a number of these operations per year and has become less than 5%. Postoperative morbidity remains high. Material and Methods. The results of surgical resection in the treatment of pancreatic adenocarcinoma have been analyzed. A retrospective study included the patients operated at the Department for Abdominal, Endocrine and Transplantation surgery, Clinical Center of Vojvodina. Results. In the period from February 1st 1998 to February 1st 2007 a total of 67 patients with pancreatic adenocarcinoma underwent resection. The average age of patients was 58.81±1.42 years. There were 44 (65.7% male and 23 (34.3% female patients. The most common locations of cancer were the head, then the body and the tail of the pancreas and they were found in 57 (85.1% cases, 7 (10,4% cases and 3 (4,47% cases, respectively. The postoperative mortality appeared in 3 (4.47% cases and postoperative morbidity in 21 (31.3% cases. The average survival was 22.89± 3.87 months, the median being 9.0±2.18 months. The five-year survival rate was 13.5%. Conclusion. For patients with pancreatic cancer, surgical resection still remains the only chance of cure. These procedures are performed with acceptable postoperative mortality and morbidity rate. The percentage of cured patients is still unsatisfactorily low.

  13. Emotional speculative behavior in the option market

    Directory of Open Access Journals (Sweden)

    Francesco Corea

    2016-01-01

    Full Text Available Social media data have been proved to be effective in augmenting stock price forecasting models before ([8], [12], but given the intrinsic speculative nature of traders who may use these innovative datasets, it appears more reasonable to investigate the relation between the Twitter data and the stock option prices. The underlying hypothesis is indeed that speculative trading strategies as the ones based on social media inference are may be more effective if evaluated on speculative instruments instead of simple stock prices. Consistent with previous works, it has been then studied on an intraday basis for three major technology stocks over a two-month period the relation between investors’ sentiment and basic financial products. A set of different variables has been created to include different interactions between sentiment and option prices, and a statistical selection model has been put in charge of identifying the most relevant correlations. The results are quite mixed: social media data seem to be indeed useful for predicting some option prices, but no others, and in particular are able to better explain single companies’ option price oscillations rather than the ones related to general indexes such as the Nasdaq-100.

  14. Laparoscopic surgical box model training for surgical trainees with limited prior laparoscopic experience.

    Science.gov (United States)

    Gurusamy, Kurinchi Selvan; Nagendran, Myura; Toon, Clare D; Davidson, Brian R

    2014-03-01

    Surgical training has traditionally been one of apprenticeship, where the surgical trainee learns to perform surgery under the supervision of a trained surgeon. This is time consuming, costly, and of variable effectiveness. Training using a box model physical simulator is an option to supplement standard training. However, the value of this modality on trainees with limited prior laparoscopic experience is unknown. To compare the benefits and harms of box model training for surgical trainees with limited prior laparoscopic experience versus standard surgical training or supplementary animal model training. We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, and Science Citation Index Expanded to May 2013. We planned to include all randomised clinical trials comparing box model trainers versus other forms of training including standard laparoscopic training and supplementary animal model training in surgical trainees with limited prior laparoscopic experience. We also planned to include trials comparing different methods of box model training. Two authors independently identified trials and collected data. We analysed the data with both the fixed-effect and the random-effects models using Review Manager 5. For each outcome, we calculated the risk ratio (RR), mean difference (MD), or standardised mean difference (SMD) with 95% confidence intervals (CI) based on intention-to-treat analysis whenever possible. We identified eight trials that met the inclusion criteria. One trial including 17 surgical trainees did not contribute to the meta-analysis. We included seven trials (249 surgical trainees belonging to various postgraduate years ranging from year one to four) in which the participants were randomised to supplementary box model training (122 trainees) versus standard training (127 trainees). Only one trial (50 trainees) was at low risk of bias. The box trainers used in all the seven trials were video trainers. Six trials were

  15. Mental disabilities affect method options.

    Science.gov (United States)

    Best, K

    1999-01-01

    The provision of reproductive health services to people with psychiatric disturbances or mental retardation requires consideration of factors such as the nature of the disability, whether pregnancy would exacerbate the disturbance, the setting in which the person lives, their level of functioning, and their ability to understand the consequences of contraceptive decisions. Schizophrenic women have high rates of unintended pregnancy and are especially vulnerable to exacerbations of their disease in the postpartum period. Women who are depressed, anxious, or suffering from thought disorganization may be unable to use contraceptive methods such as the pill or condoms correctly. This article reviews issues associated with the provision of various contraceptive methods to, first, women with psychiatric conditions and, second, those with intellectual disabilities. It is important that reproductive health services for those with psychiatric disabilities or retardation are not coercive. Providers should be aware of the legal requirements for obtaining informed consent, including an explanation of benefits and risks, options, and a determination of whether the person is competent to understand the information.

  16. Surgical management of chronic pancreatitis

    Institute of Scientific and Technical Information of China (English)

    Stavros Gourgiotis; Stylianos Germanos; Marco Pericoli Ridolifni

    2007-01-01

    BACKGROUND:Treatment of chronic pancreatitis (CP) is a challenging condition for surgeons. During the last decades, increasing knowledge about pathophysiology of CP, improved results of major pancreatic resections, and integration of sophisticated diagnostic methods in clinical practice have resulted in signiifcant changes in surgery for CP. DATA SOURCES:To detail the indications for CP surgery, the surgical procedures, and outcome, a Pubmed database search was performed. The abstracts of searched articles about surgical management of CP were reviewed. The articles could be identiifed and further scrutinized. Further references were extracted by cross-referencing. RESULTS: Main indications of CP for surgery are intractable pain, suspicion of malignancy, and involvement of adjacent organs. The goal of surgical treatment is to improve the quality of life of patients. The surgical approach to CP should be individualized according to pancreatic anatomy, pain characteristics, baseline exocrine and endocrine function, and medical co-morbidity. The approach usually involves pancreatic duct drainage and resection including longitudinal pancreatojejunostomy, pancreatoduodenectomy (Whipple's procedure), pylorus-preserving pancreatoduodenectomy, distal pancreatectomy, total pancreatectomy, duodenum-preserving pancreatic head resection (Beger's procedure), and local resection of the pancreatic head with longitudinal pancreatojejunostomy (Frey's procedure). Non-pancreatic and endoscopic management of pain has also been advocated. CONCLUSIONS:Surgical procedures provide long-term pain relief, a good postoperative quality of life with preservation of endocrine and exocrine pancreatic function, and are associated with low early and late mortality and morbidity. In addition to available results from randomized controlled trials, new studies are needed to determine which procedure is the most effective for the management of patients with CP.

  17. Telematics Options and Capabilities

    Energy Technology Data Exchange (ETDEWEB)

    Hodge, Cabell [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2017-09-05

    This presentation describes the data tracking and analytical capabilities of telematics devices. Federal fleet managers can use the systems to keep their drivers safe, maintain a fuel efficient fleet, ease their reporting burden, and save money. The presentation includes an example of how much these capabilities can save fleets.

  18. The Only Option

    Institute of Scientific and Technical Information of China (English)

    2013-01-01

    The Xinjiang Uygur Autonomous Region,a vast frontier territory in northwest China,has found no peace in the past several months.On April 23,15 people,including police officers and community workers,lost their lives during an encounter with a local mob in Bachu County.Then,on June 26 and 28,violent riots broke out

  19. ELECTRO-ACOUSTIC STIMULATION - AN OPTION WHEN HEARING AIDS ARE NOT ENOUGH

    Directory of Open Access Journals (Sweden)

    Herbert Mauch Biomed, Eng.

    2016-11-01

    Full Text Available Individuals with steeply sloping high frequency hearing loss can often hear speech but fail to understand it, and conventional treatments, including frequency transposition hearing aids, are usually ineffective when the hearing loss is severe or profound. Electro-acoustic stimulation (EAS is a relatively new treatment option for this population, in which mid-high frequency information is provided by a cochlear implant (CI inserted into the basal turn of the cochlea, supplemented by low frequency acoustic amplification. New atraumatic CI electrode arrays and surgical techniques have been shown to facilitate low frequency hearing preservation sufficiently to allow the use of EAS in the majority of suitable candidates. Clinical studies have consistently demonstrated synergistic combination of mid-high frequency information delivered electrically by a CI with low frequencies delivered acoustically, providing superior performance to that obtained from a CI alone.

  20. Treatment Option Overview (Cervical Cancer)

    Science.gov (United States)

    ... Cancer Prevention Cervical Cancer Screening Research Cervical Cancer Treatment (PDQ®)–Patient Version General Information About Cervical Cancer ... Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery) depends on ...

  1. Treatment Option Overview (Kaposi Sarcoma)

    Science.gov (United States)

    ... Treatment Childhood Vascular Tumors Treatment Research Kaposi Sarcoma Treatment (PDQ®)–Patient Version General Information About Kaposi Sarcoma ... Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery ) and treatment ...

  2. Treatment Option Overview (Bladder Cancer)

    Science.gov (United States)

    ... Cancer Treatment Bladder Cancer Screening Research Bladder Cancer Treatment (PDQ®)–Patient Version General Information About Bladder Cancer ... Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery ) depends on ...

  3. Treatment Options for Actinic Keratosis

    Science.gov (United States)

    ... Skin Cancer Skin Cancer Screening Research Skin Cancer Treatment (PDQ®)–Patient Version General Information About Skin Cancer ... Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery ) depends mostly ...

  4. Treatment Options for Urethral Cancer

    Science.gov (United States)

    ... Treatment Health Professional Urethral Cancer Treatment Urethral Cancer Treatment (PDQ®)–Patient Version General Information About Urethral Cancer ... Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery ) and treatment ...

  5. Menopause: Weighing Your Treatment Options

    Science.gov (United States)

    ... of this page please turn JavaScript on. Feature: Menopause Weighing Your Treatment Options Past Issues / Winter 2017 ... What led you to study older women and menopause? I started studying women's health many years ago ...

  6. Multiscale Surgical Telerobots

    Energy Technology Data Exchange (ETDEWEB)

    Miles, R R; Seward, K P; Benett, W J; Tendick, F; Bentley, L; Stephan, P L

    2002-01-23

    A project was undertaken to improve robotic surgical tools for telerobotic minimally invasive surgery. The major objectives were to reduce the size of the tools to permit new surgical procedures in confined spaces such as the heart and to improve control of surgical tools by locating positional sensors and actuators at the end effector rather than external to the patient as is currently the state of the technology. A new compact end-effector with wrist-like flexibility was designed. Positional sensors based on MEMS microfabrication techniques were designed.

  7. [Realistic surgical training. The Aachen model].

    Science.gov (United States)

    Krones, C J; Binnebösel, M; Stumpf, M; Schumpelick, V

    2010-01-01

    The Aachen model is a practical mode in teaching and advanced training, which is closely geared to the areas of academic acquisition and training. During medical education optional student courses with constitutive curricula offer practical points of contact to the surgical department at all times. Besides improvement of manual training the aims are enhancing interests and acquisition of talents. This guided structure will be intensified with progression into advanced education. Next to the formal guidelines of the curriculum, education logbook and progression conversations, quality, transparency and reliability are particularly emphasized. An evaluation of both the reforms and the surgical trainers is still to be made. In addition procurement of an affirmative occupational image is essential.

  8. Surgical treatment of traumatic lower limb pseudoaneurysm

    Institute of Scientific and Technical Information of China (English)

    Pan Zhongjie; Zhang Hua; Li Li; Jia Yutao; Tian Rong

    2014-01-01

    Objective:To summarize our experience in surgical treatment of traumatic lower limb pseudoaneurysm.Methods:Twenty patients with traumatic lower limb pseudoaneurysm were surgically treated in our department from January 2007 to January 2012.The treatment protocols included interventional covered-stent placement (10 cases),spring coil embolization (2 cases),and surgical operation (8 cases).Surgical operations included pseudoaneurysm repair (2 cases),autologousvein transplantation (1 case),and artificial-vessel bypass graft (5 cases).Results:All the patients were successfully treated without aggravating lower limb ischemia.Pseudoaneurysm disappeared after treatment.A surgical operation is suitable to most pseudoaneurysms,but its damage is relatively obvious and usually leads to more bleeding.It also requires a longer operating time.Compared to a surgical operation,interventional therapy is less traumatic and patients usually have a quicker recovery (P<0.05).All patients were followed up once per month for 12-36 months by color Doppler ultrasound examination.There were no cases of pseudoaneurysm recurrence.Conclusion:Both surgical operation and interventional therapy are safe and effective in the treatment of pseudoaneurysm.

  9. CORPORATE SOCIAL RESPONSIBILITY: OPTIONAL OR REGULATORY

    Directory of Open Access Journals (Sweden)

    MIHAELA IRINA IONESCU

    2012-05-01

    Full Text Available Given the collateral activity developed and the economic background of the present author I took the approach of a topic that includes aspects from both fields, namely “Corporate Social responsibility- optional or regulatory”. Through the paper I will try to summarize the pros and cons of regulation, mandatory of corporate social responsibility and to review, present the ways in which countries with advanced economies in European Union and the EU itself have addressed this issue.

  10. Option Derivatives in Electricity Hedging

    Directory of Open Access Journals (Sweden)

    P. Pavlátka

    2010-01-01

    Full Text Available Despite the high volatility of electricity prices, there is still little demand for electricity power options, and the liquidity on the power exchanges of these power derivatives is quite low. One of the reasons is the uncertainty about how to evaluate these electricity options and about finding the right fair value of this product. Hedging of electricity is associated mainly with products such as futures and forwards. However, due to new trends in electricity trading and hedging, it is also useful to think more about options and the principles for working with them in hedging various portfolio positions and counterparties. We can quite often encounter a situation when we need to have a perfect hedge for our customer’s (end user consuming electricity portfolio, or we have to evaluate the volumetric risk (inability of a customer to predict consumption, which is very similar to selling options. Now comes the moment to compare the effects of using options or futures to hedge these open positions. From a practical viewpoint, the Black-Scholes prices appear to be the best available and the simplest method for evaluating option premiums, but there are some limitations that we have to consider.

  11. 78 FR 19059 - Self-Regulatory Organizations; Chicago Board Options Exchange, Incorporated; Notice of Filing and...

    Science.gov (United States)

    2013-03-28

    ... ETF options, including exercise style. Accordingly, the Exchange noted in its original mini-option... change that are filed with the Commission, and all written communications relating to the proposed...

  12. Surgical Non-Regenerative Treatments for Peri-Implantitis: a Systematic Review

    Directory of Open Access Journals (Sweden)

    Ausra Ramanauskaite

    2016-09-01

    Full Text Available Objectives: The purposes of the present study were 1 to systematically review the literature on the surgical non-regenerative treatments of peri-implantitis and 2 to determine a predictable therapeutic option for the clinical management of peri-implantitis lesions. Material and Methods: The study search was performed on primary database MEDLINE and EMBASE from 2005 until 2016. Sequential screenings at the title, abstract, and full-text levels were performed. Clinical human studies in the English language that had reported changes in probing depth (PD and/or bleeding on probing (BOP and/or radiologic marginal bone level changes after peri-implantitis surgical non-regenerative treatment at 6-month follow-up or longer were included accordingly PRISMA guidelines. Results: The first electronic and hand search resulted in 765 citations. From 16 full-text articles reviewed, 6 were included in this systematic review. Surgical non-regenerative methods were found to be efficient in reducing clinical parameters. BOP and PD values were significantly decreased following implantoplasty and systematic administration of antibacterials, but not after local application of chemical compounds or diode laser. Similarly, significant improvement in clinical and radiographic parameters was found only after implantoplasty compared with resective surgery alone. We found significant heterogeneity in study designs and treatments provided among the pooled studies. All of the studies revealed an unclear or high risk of bias. Conclusions: Surgical non-regenerative treatment of peri-implantitis was found to be effective to reduce the soft tissue inflammation and decrease probing depth. More randomized controlled clinical trials are needed to assess the efficacy of surgical non-regenerative therapy of peri-implantitis.

  13. Surgical Non-Regenerative Treatments for Peri-Implantitis: a Systematic Review

    Science.gov (United States)

    Ramanauskaite, Ausra; Daugela, Povilas; Faria de Almeida, Ricardo

    2016-01-01

    ABSTRACT Objectives The purposes of the present study were 1) to systematically review the literature on the surgical non-regenerative treatments of peri-implantitis and 2) to determine a predictable therapeutic option for the clinical management of peri-implantitis lesions. Material and Methods The study search was performed on primary database MEDLINE and EMBASE from 2005 until 2016. Sequential screenings at the title, abstract, and full-text levels were performed. Clinical human studies in the English language that had reported changes in probing depth (PD) and/or bleeding on probing (BOP) and/or radiologic marginal bone level changes after peri-implantitis surgical non-regenerative treatment at 6-month follow-up or longer were included accordingly PRISMA guidelines. Results The first electronic and hand search resulted in 765 citations. From 16 full-text articles reviewed, 6 were included in this systematic review. Surgical non-regenerative methods were found to be efficient in reducing clinical parameters. BOP and PD values were significantly decreased following implantoplasty and systematic administration of antibacterials, but not after local application of chemical compounds or diode laser. Similarly, significant improvement in clinical and radiographic parameters was found only after implantoplasty compared with resective surgery alone. We found significant heterogeneity in study designs and treatments provided among the pooled studies. All of the studies revealed an unclear or high risk of bias. Conclusions Surgical non-regenerative treatment of peri-implantitis was found to be effective to reduce the soft tissue inflammation and decrease probing depth. More randomized controlled clinical trials are needed to assess the efficacy of surgical non-regenerative therapy of peri-implantitis. PMID:27833739

  14. Fibromyalgia Pathogenesis and Treatment Options Update.

    Science.gov (United States)

    Chinn, Steven; Caldwell, William; Gritsenko, Karina

    2016-04-01

    This review article presents and summarizes up-to-date literature on the clinical manifestations, diagnosis, pathophysiological mechanisms, and treatment options for fibromyalgia patients. First, the most recent diagnostic criteria for fibromyalgia, as put forth by the American College of Rheumatology will be summarized. Clinical features, including chronic widespread pain, hyperalgesia, mood disorders, anxiety, and disturbed sleep patterns will be explored in-depth. The pathogenesis and pathophysiology of fibromyalgia involves alterations in multiple ascending and descending central nervous system pathways, as well as peripheral pathways, leading to heightened pain sensitivity. Risk factors have been studied extensively, and the most recent research focuses on various genetic influences and the contributions of stress and poor sleep. Lastly, the discussion in this article focuses on treatment options for fibromyalgia; some have been mainstay options for many years. Pharmacological agents include tricyclic antidepressants, anti-epileptic drugs, selective serotonin reuptake inhibitors, norepinephrine/serotonin reuptake inhibitors, as well as some investigational agents. The evidence behind non-pharmacologic treatments, including massage therapy, exercise, and acupuncture, are discussed.

  15. [Surgical tactics by various ameloblastic tumors].

    Science.gov (United States)

    Semkin, V A; Grigor'ian, A S; Babichenko, I I; Usachev, E S; Zaretskaia, A S

    2012-01-01

    Ameloblastoma and ameloblastic fibroma are benign odontogenous tumors of the jaws with local destructive growth, prone to recurrence. They have various typical radiological and histological features. Surgical tactic generally includes partial resection of the affected jaw. Immunohistochemical study of the tumor tissues allows assessing the expression of tumor progression markers and forecasting tumor growth thus providing individual choice of surgical tactics. Our experience in treatment of ameloblastic tumors showed total biopsy with osseous surgical margins resection to be sufficient for normal bone structure remodeling in some patients.

  16. Dermato-Surgical Approach In Vitiliogo

    Directory of Open Access Journals (Sweden)

    Malakar Subrata

    1995-01-01

    Full Text Available Vitiligo is a hypomelanotic disorder often difficult to treat. Different medicinal treatments such as PUNA, steroids and adjunct theraples give partial or complete repigmentation in about 60-90% cases. Moreover, vitiligo patches which are refractory to most medical therapies are acrofacial, mucosal and segmental. At the backdrop of these medicinal shortcomings, various surgical procedures and their modifications have gradually evolved. To decide why, where and when surgical interference is required, is of utmost importance. In this review different surgical modes, including some of the latest, and their future prospects are discussed.

  17. A review of the surgical approaches to glaucoma treatment

    Directory of Open Access Journals (Sweden)

    Spratt Alexander

    2013-07-01

    Full Text Available The conventional approach of initially treating glaucoma medically and holding surgical intervention as a reserve option was endorsed by the findings of the Collaborative Initial Glaucoma Treatment Study (CIGTS study.1 This study reported that patients had similar visual field outcomes at five years from either medical treatment or immediate filtration surgery and supported the status quo of glaucoma management. The market for medical treatments has since increased and polypharmacy is now an accepted norm for glaucoma treatment. Surgical remedies for glaucoma have existed in a less pressured environment such that trabeculectomy, after four decades of slow evolution and complications, remains the most commonly performed type of glaucoma surgery worldwide. This ecosystem has begun to change in recent years. New surgical alternatives have arrived, reached a sizeable number and gained considerable traction as viable competitors to conventional glaucoma medical and surgical treatments. This raises important questions as to how these advances in glaucoma surgical options may affect the future landscape of glaucoma treatment. Has trabeculectomy already yielded some of its high ground? Why has trabeculectomy not been able to evolve more rapidly in response to new competitive pressures? If trabeculectomy has reached its evolutionary zenith are the newer alternatives any better? And, is it time to re-examine the conventional ‘medical before surgical’ approach to glaucoma? This article reviews the evidence for current surgical techniques available to patients with glaucoma.

  18. Quality of pharmaceutical care in surgical patients.

    Directory of Open Access Journals (Sweden)

    Monica de Boer

    Full Text Available BACKGROUND: Surgical patients are at risk for preventable adverse drug events (ADEs during hospitalization. Usually, preventable ADEs are measured as an outcome parameter of quality of pharmaceutical care. However, process measures such as QIs are more efficient to assess the quality of care and provide more information about potential quality improvements. OBJECTIVE: To assess the quality of pharmaceutical care of medication-related processes in surgical wards with quality indicators, in order to detect targets for quality improvements. METHODS: For this observational cohort study, quality indicators were composed, validated, tested, and applied on a surgical cohort. Three surgical wards of an academic hospital in the Netherlands (Academic Medical Centre, Amsterdam participated. Consecutive elective surgical patients with a hospital stay longer than 48 hours were included from April until June 2009. To assess the quality of pharmaceutical care, the set of quality indicators was applied to 252 medical records of surgical patients. RESULTS: Thirty-four quality indicators were composed and tested on acceptability and content- and face-validity. The selected 28 candidate quality indicators were tested for feasibility and 'sensitivity to change'. This resulted in a final set of 27 quality indicators, of which inter-rater agreements were calculated (kappa 0.92 for eligibility, 0.74 for pass-rate. The quality of pharmaceutical care was assessed in 252 surgical patients. Nearly half of the surgical patients passed the quality indicators for pharmaceutical care (overall pass rate 49.8%. Improvements should be predominantly targeted to medication care related processes in surgical patients with gastro-intestinal problems (domain pass rate 29.4%. CONCLUSIONS: This quality indicator set can be used to measure quality of pharmaceutical care and detect targets for quality improvements. With these results medication safety in surgical patients can be enhanced.

  19. Surgical Critical Care Initiative

    Data.gov (United States)

    Federal Laboratory Consortium — The Surgical Critical Care Initiative (SC2i) is a USU research program established in October 2013 to develop, translate, and validate biology-driven critical care....

  20. Ambulatory Surgical Measures - National

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Ambulatory Surgical Center Quality Reporting (ASCQR) Program seeks to make care safer and more efficient through quality reporting. ASCs eligible for this...

  1. Ambulatory Surgical Measures - Facility

    Data.gov (United States)

    U.S. Department of Health & Human Services — The Ambulatory Surgical Center Quality Reporting (ASCQR) Program seeks to make care safer and more efficient through quality reporting. ASCs eligible for this...

  2. Surgical site infections

    African Journals Online (AJOL)

    and mortality as well as significant financial implications. Worldwide it has ... common nosocomial infection amongst surgical patients with up to 38% .... antibiotics as soon as the sensitivity results are available. ... Breast surgery. Staph Aureus/ ...

  3. Real Options Analysis of Electricity Investments

    Energy Technology Data Exchange (ETDEWEB)

    Heggedal, Ane Marte

    2012-07-01

    This thesis utilizes real options analysis for evaluating investment opportunities in the electricity sector. It also formally tests how investors in hydropower plants have included uncertainty when considering their investment opportunities. The real options method applies financial options theory to quantify the value of management flexibility and is chosen due to three important characteristics of investments in the electricity sector. First; the investment is completely or partially irreversible, second; the investor can choose when to invest in the facility, and third; there is uncertainty in several factors affecting the cash flows of the investments. Factors of uncertainty include the development of electricity prices, policies, technological advances, and macroeconomics measures.Four papers are included in this thesis. Paper 1, Upgrading hydropower plants with storage: Timing and capacity choice, presents a valuation framework for deciding when to upgrade an existing hydropower plant and which capacity to choose. The second paper, Transmission capacity between Norway and Germany: A real options analysis, sheds light on when two electricity markets, in this case Norway and Germany, should be connected through a sub sea cable. The investor can choose when to invest and the capacity of the cable, and may also choose to invest sequentially. Paper 3, Optimal timing and capacity choice for pumped hydropower storage, investigates when investment in a pumped hydropower plant with storage should be undertaken and what the capacity of the facility should be. Whereas the three first papers investigate investment opportunities, Paper 4, Uncertain climate policy decisions and investment timing: Evidence from small hydropower plants, studies when investors in small hydropower plants chose to invest. The analyses disclose whether the net present value approach or the real options method best describe the investment decisions made by the investors. Viewing investment

  4. Decision making in surgical oncology.

    Science.gov (United States)

    Lamb, B; Green, J S A; Vincent, C; Sevdalis, N

    2011-09-01

    Decisions in surgical oncology are increasingly being made by multi-disciplinary teams (MDTs). Although MDTs have been widely accepted as the preferred model for cancer service delivery, the process of decision making has not been well described and there is little evidence pointing to the ideal structure of an MDT. Performance in surgery has been shown to depend on non-technical skills, such as decision making, as well as patient factors and the technical skills of the healthcare team. Application of this systems approach to MDT working allows the identification of factors that affect the quality of decision making for cancer patients. In this article we review the literature on decision making in surgical oncology and by drawing from the systems approach to surgical performance we provide a framework for understanding the process of decision making in MDTs. Technical factors that affect decision making include the information about patients, robust ICT and video-conferencing equipment, a minimum dataset with expert review of radiological and pathological information, implementation and recording of the MDTs decision. Non-technical factors with an impact on decision making include attendance of team members at meetings, leadership, teamwork, open discussion, consensus on decisions and communication with patients and primary care. Optimising these factors will strengthen the decision making process and raise the quality of care for cancer patients.

  5. Diversifying Your Career Counseling Practice: An Overview of Options.

    Science.gov (United States)

    Rogerson, Lynda

    1997-01-01

    Career counselors should practice what they preach and develop strategies for diversifying their careers. Options include adjunct faculty, outplacement consultant, motivational speaker, mentor/advisor for special groups, job club facilitator, seminar leader, radio host, and newspaper columnist. (SK)

  6. Amplification options for patients with mixed hearing loss.

    NARCIS (Netherlands)

    Zwartenkot, J.W.; Snik, A.F.M.; Mylanus, E.A.M.; Mulder, J.J.S.

    2014-01-01

    OBJECTIVES: To compare amplification options for patients with mixed hearing loss. Devices tested include percutaneous and transcutaneous bone conductors (BCDs) and middle ear implants with their actuator directly coupled to the cochlea. SETTING: Tertiary academic medical center. METHOD AND PARTICIP

  7. Diversifying Your Career Counseling Practice: An Overview of Options.

    Science.gov (United States)

    Rogerson, Lynda

    1997-01-01

    Career counselors should practice what they preach and develop strategies for diversifying their careers. Options include adjunct faculty, outplacement consultant, motivational speaker, mentor/advisor for special groups, job club facilitator, seminar leader, radio host, and newspaper columnist. (SK)

  8. [Surgical treatment of paralytic lagophthalmos].

    Science.gov (United States)

    Schrom, T; Bast, F

    2010-03-01

    Impairment of the peripheral or central part of the facial nerve causes an ipsilateral peripheral facial nerve paresis. It is quite a common syndrome and affects 20-35 persons per 100,000 per year in Western Europe and the United States. A possible complication of facial palsy is paralytic lagophthalmos with aesthetic and functional impairment for the patient. Beside primary nerve reconstructive procedures plastic-reconstructive procedures play a major role in correcting paralytic lagophthalmos. The eyebrow, upper and lower lids, medial and lateral lid angle as well as the lacrimal system need to be seen as functional units and can be corrected with local surgical procedures. Restoration of eye closure is the most important goal in treating the affected eye. Due to the significant aesthetic limitations and resultant psychological stress for the patient cosmetic aspects must be included in the surgical concept.

  9. Assessment of the role of a student-led surgical interest group in surgical education.

    Science.gov (United States)

    Li, Ran; Buxey, Kenneth; Ashrafi, Akbar; Drummond, Katharine J

    2013-01-01

    We describe the development of a medical student surgical interest group, its initial evaluation, and future plans. The Surgical Students Society of Melbourne was formed in August 2008 by a group of senior medical students from the University of Melbourne. The Surgical Students Society of Melbourne seeks to provide additional surgical teaching and professional development for students interested in a career in surgery. It also aims to provide junior doctors with leadership and teaching opportunities to meet the requirements of the Royal Australasian College of Surgeons for application to the Surgical Education and Training program. Its program also addresses contemporary workforce issues, such as women in surgery and rural surgery. The society runs a weekly teaching program during the semester and procedural and careers workshops throughout the year. A survey of students attending the teaching program was conducted by means of written and online questionnaires. The results suggest that the society has been successful in augmenting surgical education and providing opportunities to improve procedural skills, but also highlighted areas of the program that may be improved, including aspects of surgical professional development and role modeling. The Surgical Students Society initiative was generally very well received by students and shows great potential as a means for augmenting surgical education at the medical student level. Copyright © 2012 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.

  10. Variation in use of non-surgical treatments among osteoarthritis patients in orthopaedic practice in the Netherlands

    Science.gov (United States)

    Hofstede, Stefanie N; Vliet Vlieland, Thea P M; van den Ende, Cornelia H M; Nelissen, Rob G H H; Marang-van de Mheen, Perla J; van Bodegom-Vos, Leti

    2015-01-01

    Objectives National and international evidence-based guidelines for hip and knee osteoarthritis (OA) recommend to start with non-surgical treatments, followed by surgical intervention if a patient does not respond sufficiently to non-surgical treatments, but there are indications that these are not optimally used. The aim of this study was to assess the extent to which all recommended non-surgical treatments were used by patients with hip or knee OA who receive(d) a total hip or knee replacement, as reported by patients and orthopaedic surgeons. Setting We performed two cross-sectional internet-based surveys among patients and orthopaedic surgeons throughout the Netherlands. Participants 195 OA patients either have undergone total knee arthroplasty or total hip arthroplasty no longer than 12 months ago or being on the waiting list for surgery with a confirmed date within 3 months and 482 orthopaedic surgeons were invited to participate. Primary and secondary outcome measures The use of recommended non-surgical treatments including education about OA/treatment options, lifestyle advice, dietary therapy, physical therapy, acetaminophen, NSAIDs and glucocorticoid injections. Results 174 OA patients (93%) and 172 orthopaedic surgeons (36%) completed the surveys. Most recommended non-surgical treatments were given to the majority of patients (eg, 80% education about OA, 73% physical therapy, 72% acetaminophen, 80% NSAIDs). However, only 6% of patients and 10% of orthopaedic surgeons reported using a combination of all recommended treatments. Dietary therapy was used least frequently. Only 11% of overweight and 30% of obese participants reported having received dietary therapy and 28% of orthopaedic surgeons reported to prescribe dietary therapy to overweight patients. Conclusions While most recommended non-surgical treatments were used frequently as single therapy, the combination is used in only a small percentage of OA patients. Especially, use of dietary therapy

  11. Treatment options for parasomnias.

    Science.gov (United States)

    Attarian, Hrayr

    2010-11-01

    Parasomnias are undesirable physical or experiential events that occur in and around sleep. Treatments include reassurance in some cases, various forms of cognitive-behavioral therapy (CBT), and pharmacologic agents. Cognitive restructuring, imagery rehearsal, relaxation, hypnosis, desensitization, and anticipatory awakenings are some of the common CBT and nonpharmacologic interventions. Medications that are used belong to a wide variety of pharmacologic classes, such as alpha-blockers (prazosin), tricyclic antidepressants (imipramine and clomipramine), selective serotonin reuptake inhibitors, benzodiazepines (diazepam and clonazepam), anticonvulsants (topiramate and gabapentin), desmopressin acetate, and anticholinergic agents (oxybutynin and tolterodine). Data on efficacy are only available from randomized trials on CBT and prazosin for nightmares and on pharmacologic and alarm therapy for enuresis. No large-scale randomized trials are available to assess the efficacy of the other treatments, and most data come from anecdotal case reports, case series, or small open-label trials.

  12. Village power options

    Energy Technology Data Exchange (ETDEWEB)

    Lilienthal, P. [National Renewable Energy Laboratory, Golden, CO (United States)

    1997-12-01

    This paper describes three different computer codes which have been written to model village power applications. The reasons which have driven the development of these codes include: the existance of limited field data; diverse applications can be modeled; models allow cost and performance comparisons; simulations generate insights into cost structures. The models which are discussed are: Hybrid2, a public code which provides detailed engineering simulations to analyze the performance of a particular configuration; HOMER - the hybrid optimization model for electric renewables - which provides economic screening for sensitivity analyses; and VIPOR the village power model - which is a network optimization model for comparing mini-grids to individual systems. Examples of the output of these codes are presented for specific applications.

  13. Surgical Innovation in Sarcoma Surgery.

    Science.gov (United States)

    Jeys, L; Morris, G; Evans, S; Stevenson, J; Parry, M; Gregory, J

    2017-08-01

    The field of orthopaedic oncology relies on innovative techniques to resect and reconstruct a bone or soft tissue tumour. This article reviews some of the most recent and important innovations in the field, including biological and implant reconstructions, together with computer-assisted surgery. It also looks at innovations in other fields of oncology to assess the impact and change that has been required by surgeons; topics including surgical margins, preoperative radiotherapy and future advances are discussed. Crown Copyright © 2017. Published by Elsevier Ltd. All rights reserved.

  14. Surgical Treatment of Laser Induced Eye Injuries

    Science.gov (United States)

    1990-12-05

    AD-A234 849 CONTRACT NO.: DAMD17-89-C-9026 TITLE: SURGICAL TREATMENT OF LASER INDUCED EYE INJURIES AUTHORS: Leonard M. Hjelmeland, Maurice B. Landers...62787A 62787A878 BA JDA318205 11. TITLE (Include Secirity Classification) (U) Surgical Treatment of Laser Induced Eye Injuries 12. PERSONAL AUTHOR(S...TERMS (Continue on reverse if necessary and identify by block number) FIELD GROUP SUB-GROUP RA 3; Lasers; Eye injury ; Surgery 09 03 06 04 19. ABSTRACT

  15. Bat Wing Surgical Approach for the Temporomandibular Joint

    National Research Council Canada - National Science Library

    Garcia y Sanchez, J M; Davila Torres, J; Pacheco Rubio, G; Gómez Rodríguez, C L

    The temporomandibular joint (TMJ) is anatomically complex; with its close proximity to neurovascular structures, including the facial nerve that gives a high degree of difficulty during surgical exposure...

  16. Simultaneous Bilateral Cataract Surgery in Outreach Surgical Camps

    Directory of Open Access Journals (Sweden)

    Kagmeni Giles

    2017-03-01

    Full Text Available Objectives: The aim of this study was to evaluate the safety and visual outcomes of simultaneous bilateral cataract surgery (SBCS with intraocular lens implantation performed in outreach surgical eye camps. Methods: The medical records of 47 consecutive patients who underwent simultaneous bilateral small-incision cataract surgery between January 2010 and December 2015 in outreach surgical camps in rural Cameroon were reviewed. The measures included postoperative visual outcomes and intraoperative and postoperative complications. Results: Data from 94 eyes of 47 participants (30 men, 17 women; mean age: 60.93 ± 13.58 years, range: 45-80 years were included in this study. The presented best visual acuity (VA was less than 3/60 in 100% of the eyes. At the 4-week follow-up, 84.04% of the eyes showed increased VA of 1 line or more ( P  = .001.Of these, 71 (75.53% achieved good VA (greater than 6/18. Intraoperative or postoperative complications occurred in 19 (20.21% eyes. The most serious intraoperative complication was a posterior capsule rupture and vitreous loss (2 patients, 2 eyes. The postoperative complications included a transient elevation in the intraocular pressure (6 eyes, chronic corneal oedema (5 eyes, iris capture (3 eyes, lens decentration (2 eyes, and hyphema (1 eye. No cases of postoperative endophthalmitis were recorded. Conclusions: Under the strict observation of endophthalmitis prophylaxis, SBCS is an option to reduce the cataract blindness backlog in rural areas of developing countries.

  17. Genital Bowenʼs Disease in a Bulgarian Patient: Complete Remission after Surgical Approach

    Directory of Open Access Journals (Sweden)

    Georgi Tchernev

    2017-07-01

    Full Text Available A 60-year-old male patient presented with complaints of persistent red to a brown-colored plaque on his scrotum, with duration of approximately three years. The patient had been treated with oral and topical antifungals for inguinal tinea for several months and after that with topical corticosteroids for eczema for several more months. None of the regimens achieved any therapeutic effect. The histopathological evaluation revealed the presence of atypical keratinocytes in all layers of the epidermis with the altered epidermal pattern, spread parabasal mitotic activity, without secondary satellites, multiple dyskeratotic cells and multinucleated cells. The diagnosis of an intraepithelial non-invasive squamous cell carcinoma, associated with koilocytic dysplasia and hyperplasia was made, meeting the criteria for Bowen disease. An elliptic surgical excision of the lesion was made, while the defect was closed with single stitches, with excellent therapeutic and aesthetic result. First described by John T. Bowen in 1912, Bowen disease (BD represents a squamous cell carcinoma (SCC in situ with the potential for significant lateral spread. Treatment options include the application of topical 5-flurorouracil cream – useful in non-hairy areas, imiquimod cream or destructive methods such as radiation, curettage, cryotherapy, laser ablation and photodynamic therapy, especially useful in nail bed involvement. Despite the early lesions, surgical excision is the preferred treatment option, regarding the potential malignant transformation risk.

  18. Do psychological variables affect early surgical recovery?

    Directory of Open Access Journals (Sweden)

    Michael N Mavros

    Full Text Available BACKGROUND: Numerous studies have examined the effect of psychological variables on surgical recovery, but no definite conclusion has been reached yet. We sought to examine whether psychological factors influence early surgical recovery. METHODS: We performed a systematic search in PubMed, Scopus and PsycINFO databases to identify studies examining the association of preoperative psychological variables or interventions with objectively measured, early surgical outcomes. RESULTS: We identified 16 eligible studies, 15 of which reported a significant association between at least one psychological variable or intervention and an early postoperative outcome. However, most studies also reported psychological factors not influencing surgical recovery and there was significant heterogeneity across the studies. Overall, trait and state anxiety, state anger, active coping, subclinical depression, and intramarital hostility appeared to complicate recovery, while dispositional optimism, religiousness, anger control, low pain expectations, and external locus of control seemed to promote healing. Psychological interventions (guided relaxation, couple support visit, and psychiatric interview also appeared to favor recovery. Psychological factors unrelated to surgical outcomes included loneliness, perceived social support, anger expression, and trait anger. CONCLUSION: Although the heterogeneity of the available evidence precludes any safe conclusions, psychological variables appear to be associated with early surgical recovery; this association could bear important implications for clinical practice. Large clinical trials and further analyses are needed to precisely evaluate the contribution of psychology in surgical recovery.

  19. Relationship between patient complaints and surgical complications

    Science.gov (United States)

    Murff, H J; France, D J; Blackford, J; Grogan, E L; Yu, C; Speroff, T; Pichert, J W; Hickson, G B

    2006-01-01

    Background Patient complaints are associated with increased malpractice risk but it is unclear if complaints might be associated with medical complications. The purpose of this study was to determine whether an association exists between patient complaints and surgical complications. Methods A retrospective analysis of 16 713 surgical admissions was conducted over a 54 month period at a single academic medical center. Surgical complications were identified using administrative data. The primary outcome measure was unsolicited patient complaints. Results During the study period 0.9% of surgical admissions were associated with a patient complaint. 19% of admissions associated with a patient complaint included a postoperative complication compared with 12.5% of admissions without a patient complaint (p = 0.01). After adjusting for surgical specialty, co‐morbid illnesses and length of stay, admissions with complications had an odds ratio of 1.74 (95% confidence interval 1.01 to 2.98) of being associated with a complaint compared with admissions without complications. Conclusions Admissions with surgical complications are more likely to be associated with a complaint than surgical admissions without complications. Further research is necessary to determine if patient complaints might serve as markers for poor clinical outcomes. PMID:16456204

  20. HIV/AIDS手术切口愈合与CD4+T淋巴细胞计数的关系%Relationship between CD4+T lymphocyte cell count and the prognosis (including the healing of the incision wound) of HIV/AIDS patients who had undergone surgical operation

    Institute of Scientific and Technical Information of China (English)

    杨涤; 赵红心; 郜桂菊; 魏凯; 张俐; 韩宁; 肖江; 李鑫; 王芳

    2014-01-01

    Objective To explore the relationship between CD4+T lymphocyte cell count and prognosis as well as healing of the surgical incision in HIV/AIDS patients who had received operation.Methods Data were collected and analysed retrospectively from 234 HIV/AIDS patients hospitalized at the Beijing Ditan hospital who underwent operation between January 2008 and December 2012.Following factors were taken into consideration that including:age,gender,time and where that anti-HIV(+) was diagnosed,CD4+T lymphocyte cell count at the time of operation,part of the body that being operated,typology of incision,different levels of healing on the surgical incision,infection at the incision site,post-operative complications and the prognosis,etc.Wilcoxon rank sum test,x2 test,Kruskal-Wallis H test and Spearman rank correlation were used for statistical analysis to compare the different levels on healing of the incision in relation to the different CD4+T lymphocyte cell counts.Rates of level A healing under different CD4+T cell counts were also compared.Results 1)Among the 234 patients including 125 males and 109 females,the average age was 36.17 ± 11.56 years old.Time after discovery of anti-HIV(+) was between 0 and 204 months.The medium CD4+T cell count was 388.5 cell/μl; 23.93% of the patients having CD4+T lymphocyte cell counts as < 200 cell/μl.2)7.26% of the operations were emergent.There were 23 different organs affected at the time of operation,due to 48 different kinds of illness.21.37% of the operations belonged to class Ⅰ incision,49.57% was class l incision and 29.06% was class Ⅲ incision.86.32% of the incisions resulted in level A healing,12.51% resulted in level B and 1.71% in level C.4.27% of the patients developed post-operative complications.Differences between level A healing and level B or C healing in terms of CD4+T lymphocyte cell count were not significant (P>0.05).There was no statistically significant difference on the CD4 +T

  1. Resection of Late Pulmonary Metastases from Pancreatic Adenocarcinoma: Is Surgery an Option?

    Science.gov (United States)

    Brieau, Bertrand; Barret, Maximilien; Rouquette, Alexandre; Dréanic, Johann; Brezault, Catherine; Regnard, Jean François; Coriat, Romain

    2015-01-01

    Patients with recurrences from pancreas adenocarcinoma have a poor survival rate despite new chemotherapy treatment options. Recurrences are mainly hepatic metastases or peritoneal dissemination and surgical treatment is not recommended. Late and single metachronous pulmonary recurrences are uncommon and may mimic primary lung carcinoma. We report two patients with late and unique pulmonary metastasis from pancreatic cancer. These two patients underwent surgical resection; three and five years later, they did not experience recurrences. Cases called for a surgical approach in late and unique pulmonary metastases from pancreatic cancer, and paved the way for a prolonged chemotherapy free period.

  2. [Clinical application of Da Vinci surgical system in China].

    Science.gov (United States)

    Jin, Zhenyu

    2014-01-01

    Da Vinci robotic surgical system leads the development of minimally invasive surgical techniques. By using Da Vinci surgical robot for minimally invasive surgery, it brings a lot of advantages to the surgeons. Since 2008, Da Vinci surgeries have been performed in 14 hospitals in domestic cities such as Beijing and Shanghai. Until the end of 2012, 3 551 cases of Da Vinci robotic surgery have been performed, covering various procedures of various surgical departments including the department of general surgery, urology, cardiovascular surgery, thoracic surgery, gynecology, and etc. Robotic surgical technique has made remarkable achievements.

  3. Investment opportunities as real options

    Directory of Open Access Journals (Sweden)

    Adnan Rovčanin

    2005-06-01

    Full Text Available Opportunity (optional approach to capital investment appraisal represents, completely new theoretical and methodological framework for investment analysis. Compared to traditional, discount cash flow (DCF model of analysis, the optional approach provides opportunity for valuation and managing flexibility, i.e. possibility of approaching (amending the previous decisions in compliance with market changes. Risk and uncertainty are inevitably following the capital investment. Therefore, the importance of optional approach to investments is also that it provides possible better “treatment” of risks in the investment analysis, and also more rational allocation of resources, accordingly. This approach should be of more interest to the Countries in transition, considering the limited financial sources as well as risk and uncertainty are emphasized.

  4. Accounting treatment of currency options

    Directory of Open Access Journals (Sweden)

    Prošić Danica

    2016-01-01

    Full Text Available Currency options are often used to mitigate currency risk resulting from corporate activities. Their implementation can be complex, and there could be problems if the essential elements and principles are not fully understood. Although they are not the simplest financial products, currency options are interesting and useful to those who are trying to make a step forward in the area of currency risk management. This paper aims to present the general principles and specifics of accounting records and valuation of currency options used for hedging against risk. It is a complex process which, in addition to numerous conditions, also involves the implementation of accounting rules that deviate from the generally accepted accounting principles.

  5. Treatment options in trigeminal neuralgia

    Science.gov (United States)

    Obermann, Mark

    2010-01-01

    The incidence of trigeminal neuralgia (TN) is 4.3 per 100,000 persons per year, with a slightly higher incidence for women (5.9/100,000) compared with men (3.4/100,000). There is a lack of certainty regarding the aetiology and pathophysiology of TN. The treatment of TN can be very challenging despite the numerous options patients and physicians can choose from. This multitude of treatment options poses the question as to which treatment fits which patient best. The preferred medical treatment for TN consists of anticonvulsant drugs, muscle relaxants and neuroleptic agents. Large-scale placebo-controlled clinical trials are scarce. For patients refractory to medical therapy, Gasserian ganglion percutaneous techniques, gamma knife surgery and microvascular decompression are the most promising invasive treatment options. PMID:21179603

  6. Ethical issues in surgical innovation.

    Science.gov (United States)

    Miller, Megan E; Siegler, Mark; Angelos, Peter

    2014-07-01

    Innovation is responsible for most advances in the field of surgery. Innovative approaches to solving clinical problems have significantly decreased morbidity and mortality for many surgical procedures, and have led to improved patient outcomes. While innovation is motivated by the surgeon's expectation that the new approach will be beneficial to patients, not all innovations are successful or result in improved patient care. The ethical dilemma of surgical innovation lies in the uncertainty of whether a particular innovation will prove to be a "good thing." This uncertainty creates challenges for surgeons, patients, and the healthcare system. By its very nature, innovation introduces a potential risk to patient safety, a risk that may not be fully known, and it simultaneously fosters an optimism bias. These factors increase the complexity of informed consent and shared decision making for the surgeon and the patient. Innovative procedures and their associated technology raise issues of cost and resource distribution in the contemporary, financially conscious, healthcare environment. Surgeons and institutions must identify and address conflicts of interest created by the development and application of an innovation, always preserving the best interest of the patient above the academic or financial rewards of success. Potential strategies to address the challenges inherent in surgical innovation include collecting and reporting objective outcomes data, enhancing the informed consent process, and adhering to the principles of disclosure and professionalism. As surgeons, we must encourage creativity and innovation while maintaining our ethical awareness and responsibility to patients.

  7. [Cisto-peritoneal shunt in the surgical treatment of intracranial arachnoid cysts: an analysis of 49 cases].

    Science.gov (United States)

    Gelabert-González, Miguel

    2011-08-01

    Arachnoid cysts are benign space-occupying lesions formed by an arachnoid membrane containing cerebrospinal fluid. Controversy continues regarding the optimal surgical management. There is ongoing debate regarding whether to fenestrate or to perform shunting of the cyst. We present a single-institution experience on surgical treatment of arachnoid cyst using cistoperitoneal shunt. This serie includes 49 children (31 males/18 females) with a diagnosis of intracranial arachnoid cyst and average age of 4-9 years (range 1-16). The predominant symptom was intracranial hypertension in 26 patients (53%). There were 12 complications in 10 patients. We conclude that arachnoid cyst are located predominantly in the temporal fossa. Cisto-peritoneal shunt is a good option in the younger children and have improved clinical symptoms.

  8. Louisiana Speaks Transportation Option B Transit Corridors, UTM Zone 15N NAD 83, Louisiana Recovery Authority (2007), [louisiana_speaks_transportation_option_b_transit_corridors

    Data.gov (United States)

    Louisiana Geographic Information Center — This GIS shapefile data illustrates the regional, subregional, and local transit corridors included in the Louisiana Speaks Regional Plan community growth option of...

  9. Louisiana Speaks Transportation Option C Transit Corridors, UTM Zone 15N NAD 83, Louisiana Recovery Authority (2007), [louisiana_speaks_transportation_option_c_transit_corridors

    Data.gov (United States)

    Louisiana Geographic Information Center — This GIS shapefile data illustrates the regional, subregional, and local transit corridors included in the Louisiana Speaks Regional Plan community growth option of...

  10. Louisiana Speaks Transportation Option C Transit Stations, UTM Zone 15N NAD 83, Louisiana Recovery Authority (2007), [louisiana_speaks_transportation_option_c_transit_stations

    Data.gov (United States)

    Louisiana Geographic Information Center — This GIS shapefile data illustrates potential fixed-transit stations included in the Louisiana Speaks Regional Plan community growth option of compact development...

  11. Design Evolution Study - Aging Options

    Energy Technology Data Exchange (ETDEWEB)

    P. McDaniel

    2002-04-05

    The purpose of this study is to identify options and issues for aging commercial spent nuclear fuel received for disposal at the Yucca Mountain Mined Geologic Repository. Some early shipments of commercial spent nuclear fuel to the repository may be received with high-heat-output (younger) fuel assemblies that will need to be managed to meet thermal goals for emplacement. The capability to age as much as 40,000 metric tons of heavy metal of commercial spent nuclear he1 would provide more flexibility in the design to manage this younger fuel and to decouple waste receipt and waste emplacement. The following potential aging location options are evaluated: (1) Surface aging at four locations near the North Portal; (2) Subsurface aging in the permanent emplacement drifts; and (3) Subsurface aging in a new subsurface area. The following aging container options are evaluated: (1) Complete Waste Package; (2) Stainless Steel inner liner of the waste package; (3) Dual Purpose Canisters; (4) Multi-Purpose Canisters; and (5) New disposable canister for uncanistered commercial spent nuclear fuel. Each option is compared to a ''Base Case,'' which is the expected normal waste packaging process without aging. A Value Engineering approach is used to score each option against nine technical criteria and rank the options. Open issues with each of the options and suggested future actions are also presented. Costs for aging containers and aging locations are evaluated separately. Capital costs are developed for direct costs and distributable field costs. To the extent practical, unit costs are presented. Indirect costs, operating costs, and total system life cycle costs will be evaluated outside of this study. Three recommendations for aging commercial spent nuclear fuel--subsurface, surface, and combined surface and subsurface are presented for further review in the overall design re-evaluation effort. Options that were evaluated but not recommended are

  12. Anxiety in veterinary surgical students

    DEFF Research Database (Denmark)

    Langebæk, Rikke; Eika, Berit; Jensen, Asger Lundorff

    2012-01-01

    The surgical educational environment is potentially stressful and this can negatively affect students' learning. The aim of this study was to investigate whether veterinary students' level of anxiety is higher in a surgical course than in a non-surgical course and if pre-surgical training...... in a Surgical Skills Lab (SSL) has an anxiety reducing effect. Investigations were carried out as a comparative study and a parallel group study. Potential participants were fourth-year veterinary students who attended a surgical course (Basic Surgical Skills) and a non-surgical course (Clinical Examination...... and 28 students from 2010). Our results show that anxiety levels in veterinary students are significantly higher in a surgical course than in a non-surgical course (p...

  13. Surgical care in the Solomon Islands: a road map for universal surgical care delivery.

    Science.gov (United States)

    Natuzzi, Eileen S; Kushner, Adam; Jagilly, Rooney; Pickacha, Douglas; Agiomea, Kaeni; Hou, Levi; Houasia, Patrick; Hendricks, Phillip L; Ba'erodo, Dudley

    2011-06-01

    Access to surgical care and emergency obstetrical care is limited in low-income countries. The Solomon Islands is one of the poorest countries in the Pacific region. Access to surgical care in Solomon Islands is limited and severely affected by a country made up of islands. Surgical care is centralized to the National Referral Hospital (NRH) on Guadalcanal, leaving a void of care in the provinces where more than 80% of the people live. To assess the ability to provide surgical care to the people living on outer islands in the Solomon Islands, the provincial hospitals were evaluated using the World Health Organization's Global Initiative for Emergency and Essential Surgical Care Needs Assessment Tool questionnaire. Data on infrastructure, workforce, and equipment available for treating surgical disease was collected at each provincial hospital visited. Surgical services are centralized to the NRH on Guadalcanal in Solomon Islands. Two provincial hospitals provide surgical care when a surgeon is available. Six of the hospitals evaluated provide only very basic surgical procedures. Infrastructure problems exist at every hospital including lack of running water, electricity, adequate diagnostic equipment, and surgical supplies. The number of surgeons and obstetricians employed by the Ministry of Health is currently inadequate for delivering care at the outer island hospitals. Shortages in the surgical workforce can be resolved in Solomon Islands with focused training of new graduates. Training surgeons locally, in the Pacific region, can minimize the "brain drain." Redistribution of surgeons and obstetricians to the provincial hospitals can be accomplished by creating supportive connections between these hospitals, the NRH, and international medical institutions.

  14. [Surgical site infections: antibiotic prophylaxis in surgery].

    Science.gov (United States)

    Asensio, Angel

    2014-01-01

    Surgical site infections (SSI) are very common, and represent more than 20% of all hospital-acquired infections. SSIs are associated with a higher mortality, as well as to an extended hospital stay and costs, depending on the surgical procedure and type of SSI. Advances in control practices for these infections include improvement in operating room ventilation, sterilization methods, barriers, and surgical techniques, as well as in surgical antimicrobial prophylaxis. For the latter, the antimicrobial agent should: be active against the most common pathogens, be administered in an appropriate dosage and in a time frame to ensure serum and tissue concentrations over the period of potential contamination, be safe, and be administered over the shortest effective time period to minimize adverse events, development of resistances, and cost. Copyright © 2013 Elsevier España, S.L. All rights reserved.

  15. [Some principles in surgical treatment of strabismus].

    Science.gov (United States)

    Dinu, Doina; Grigorescu, Adina; David, Roxana; Urda, S

    2007-01-01

    Taking into consideration the age of the patient, the strabismus surgery targets different things. Thus, for infants, the goal of the surgical intervention for congenital esotropia, is to prevent the occurrence of amblyopia and binocular vision dysfunctions (ARC, suppression). In preschool children, we operate aiming the recovery of the binocular vision, while in children over ten years old, the surgery is done only for esthetic reasons. On the other hand, in adults, the strabismus surgery has two aspects: for esthetic reasons in monocular strabismus with amblyopia, or for diplopia treatment in strabismus of traumatic or neurological cause. To get the best results, the surgical intervention has to respect several rules, which differ with patient's age. This presentation will discuss several surgical procedures: for congenital esotropia (including its advantages and drawbacks), for preschool children strabismus and also for strabismus in adults. We will also review the surgical treatment for Duane syndrome, Ciancia syndrome and superior oblique muscle palsy.

  16. Surgical attire, practices and their perception in the prevention of surgical site infection.

    Science.gov (United States)

    McHugh, S M; Corrigan, M A; Hill, A D K; Humphreys, H

    2014-02-01

    Clean surgical scrubs, surgical gowns and headgear are worn by operative teams to decrease bacterial contamination and lower surgical site infection (SSI) rates. A detailed review was undertaken of peer-reviewed publications and other sources of material in the English language over the last 50 years included. Surgical scrubs should be clean and made of tightly woven material. Studies investigating single-use gowns and drapes versus reusable gowns report conflicting evidence. Double gloving may reduce SSI rates in procedures where no antibiotic prophylaxis was administered. Bacterial contamination of the operative field has been shown to be decreased by the wearing of surgical headgear by the operating team. Further consideration and better trials are required to determine the impact of different theatre clothing on SSI rates. Copyright © 2013 Royal College of Surgeons of Edinburgh (Scottish charity number SC005317) and Royal College of Surgeons in Ireland. Published by Elsevier Ltd. All rights reserved.

  17. Surgical bleeding in microgravity

    Science.gov (United States)

    Campbell, M. R.; Billica, R. D.; Johnston, S. L. 3rd

    1993-01-01

    A surgical procedure performed during space flight would occur in a unique microgravity environment. Several experiments performed during weightlessness in parabolic flight were reviewed to ascertain the behavior of surgical bleeding in microgravity. Simulations of bleeding using dyed fluid and citrated bovine blood, as well as actual arterial and venous bleeding in rabbits, were examined. The high surface tension property of blood promotes the formation of large fluid domes, which have a tendency to adhere to the wound. The use of sponges and suction will be adequate to prevent cabin atmosphere contamination with all bleeding, with the exception of temporary arterial droplet streams. The control of the bleeding with standard surgical techniques should not be difficult.

  18. Surgical management of presbyopia

    Directory of Open Access Journals (Sweden)

    Torricelli AA

    2012-09-01

    Full Text Available André AM Torricelli, Jackson B Junior, Marcony R Santhiago, Samir J BecharaDivision of Ophthalmology, University of São Paulo Medical School, São Paulo, BrazilAbstract: Presbyopia, the gradual loss of accommodation that becomes clinically significant during the fifth decade of life, is a physiologic inevitability. Different technologies are being pursued to achieve surgical correction of this disability; however, a number of limitations have prevented widespread acceptance of surgical presbyopia correction, such as optical and visual distortion, induced corneal ectasia, haze, anisometropy with monovision, regression of effect, decline in uncorrected distance vision, and the inherent risks with invasive techniques, limiting the development of an ideal solution. The correction of the presbyopia and the restoration of accommodation are considered the final frontier of refractive surgery. The purpose of this paper is to provide an update about current procedures available for presbyopia correction, their advantages, and disadvantages.Keywords: presbyopia, surgical correction, treatment

  19. Treatment options for patellofemoral instability in sports traumatology

    Directory of Open Access Journals (Sweden)

    Philippe M. Tscholl

    2013-09-01

    Full Text Available Patellofemoral instability not only involves lateral patellar dislocation, patellar mal-tracking or subluxation but can also cause a limiting disability for sports activities. Its underlying causes are known as morphological anomalies of the patellofemoral joint or the mechanical axis, femorotibial malrotation, variants of the knee extensor apparatus, and ligamentous insufficiencies often accompanied by poor proprioception. Athletes with such predisposing factors are either suffering from unspecific anterior knee pain or from slightly traumatic or recurrent lateral patellar dislocation Treatment options of patellar instability are vast, and need to be tailored individually depending on the athlete’s history, age, complaints and physical demands. Different conservative and surgical treatment options are reviewed and discussed, especially limited expectations after surgery.

  20. Optical modulator including grapene

    Energy Technology Data Exchange (ETDEWEB)

    Liu, Ming; Yin, Xiaobo; Zhang, Xiang

    2016-06-07

    The present invention provides for a one or more layer graphene optical modulator. In a first exemplary embodiment the optical modulator includes an optical waveguide, a nanoscale oxide spacer adjacent to a working region of the waveguide, and a monolayer graphene sheet adjacent to the spacer. In a second exemplary embodiment, the optical modulator includes at least one pair of active media, where the pair includes an oxide spacer, a first monolayer graphene sheet adjacent to a first side of the spacer, and a second monolayer graphene sheet adjacent to a second side of the spacer, and at least one optical waveguide adjacent to the pair.

  1. Therapeutical options in sigmoid diverticulitis. When should we operate?

    Science.gov (United States)

    Pătraşcu, Tr; Doran, H; Catrina, E; Mihalache, O

    2012-01-01

    Colonic diverticulosis is a benign disease whose incidence has been steadily increasing throughout the world, especially in the economically developed countries in Western Europe. This increase is connected to the population ageing process, the diverticulosis being characteristic in the elderly, and with nowadays' eating habits. Frequently, colonic diverticuli may cause complications, such as hemorrhage or diverticulitis, with pericolic abscesses or peritonitis. Consequently, efforts are being made to set up a therapeutic algorithm appropriate for the diverticular disease, the predominance of the conservative or surgical attitude being continuously adjusted. We have analyzed the therapeutic options, their advantages and their limitations, based on both the experience of the "Prof. I. Juvara" Surgical Department of the "Dr. I. Cantacuzino" Clinical Hospital and the latest data in medical literature. Celsius.

  2. Feedback options in nonlinear numerical finance

    DEFF Research Database (Denmark)

    Hugger, Jens; Mashayekhi, Sima

    2012-01-01

    Feedback options are options where information about the trading of the underlying asset is fed back into the pricing model. This results in nonlinear pricing models. A survey of the literature about feedback options in finance is presented. The pricing model for the full feedback option...

  3. Illiquidity Premia in the Equity Options Market

    DEFF Research Database (Denmark)

    Christoffersen, Peter; Goyenko, Ruslan; Jacobs, Kris

    Illiquidity is well-known to be a significant determinant of stock and bond returns. We report on illiquidity premia in the equity options market. An increase in option illiquidity decreases the current option price and implies higher expected option returns. This effect is statistically and econ...

  4. Exploring Higher Education Financing Options

    Science.gov (United States)

    Nkrumah-Young, Kofi K.; Powell, Philip

    2011-01-01

    Higher education can be financed privately, financed by governments, or shared. Given that the benefits of education accrue to the individual and the state, many governments opt for shared financing. This article examines the underpinnings of different options for financing higher education and develops a model to compare conditions to choices and…

  5. Treatment Option Overview (Gastric Cancer)

    Science.gov (United States)

    ... liver cancer . The following stages are used for gastric cancer: Stage 0 (Carcinoma in Situ) In stage 0 , abnormal cells are ... check-ups. Treatment Options by Stage Stage 0 (Carcinoma in ... Stage I Gastric Cancer Treatment of stage I gastric cancer may ...

  6. The role of the surgical care practitioner within the surgical team.

    Science.gov (United States)

    Quick, Julie

    Changes to the surgical workforce and the continued development of health policy have perpetuated the requirement for innovative perioperative roles. The surgical care practitioner is a nurse or allied health professional who works within a surgical team and has advanced perioperative skills, including the ability to undertake surgical interventions.With only limited literature evaluating this role, any benefits of their inclusion to a surgical team are largely anecdotal. This article presents the findings of an autoethnographic inquiry that explored the experiences of surgical team members who worked with the nurse researcher in her role as surgical care practitioner. Surgeons identified the provision of a knowledgeable, competent assistant and operator who enhanced patient care, helped maintain surgical services and supported the training of junior doctors. The professional, ethical and legal obligations of advanced perioperative practice were upheld. Interprofessional collaboration was improved, as was service provision. This further enhanced the patient experience. The traditional viewpoint that nurses who undertake tasks previously associated with medicine should be working to the standard of a doctor is challenged but requires further examination.

  7. Visual Impairment, Including Blindness

    Science.gov (United States)

    ... Who Knows What? Survey Item Bank Search for: Visual Impairment, Including Blindness Links updated, April 2017 En ... doesn’t wear his glasses. Back to top Visual Impairments in Children Vision is one of our ...

  8. [Improved treatment options for a short bowel syndrome patient].

    Science.gov (United States)

    Pakarinen, Mikko

    2014-01-01

    Short bowel syndrome necessitates long-term parenteral nutrition, which exposes to decreased quality of life and increased morbidity. In recent years the understanding of short bowel pathophysiology and related complications has expanded, forming the basis for improved treatment options. In addition to evolving nutritional therapy, new pharmacological and surgical therapies have emerged, enhancing the patients' possibilities to achieve intestinal autonomy. Increasingly efficient prevention of intestinal failure-associated liver disease and central line-associated septic episodes improves patient survival. Bowel function can be restored by intestinal transplantation in those developing life-threatening complications.

  9. Postperfusion lung syndrome: physiopathology and therapeutic options

    Directory of Open Access Journals (Sweden)

    Shi-Min Yuan

    2014-09-01

    Full Text Available Postperfusion lung syndrome is rare but can be lethal. The underlying mechanism remains uncertain but triggering inflammatory cascades have become an accepted etiology. A better understanding of the pathophysiology and the roles of inflammatory mediators in the development of the syndrome is imperative in the determination of therapeutic options and promotion of patients' prognosis and survival. Postperfusion lung syndrome is similar to adult respiratory distress syndrome in clinical features, diagnostic approaches and management strategies. However, the etiologies and predisposing risk factors may differ between each other. The prognosis of the postperfusion lung syndrome can be poorer in comparison to acute respiratory distress syndrome due to the secondary multiple organ failure and triple acid-base imbalance. Current management strategies are focusing on attenuating inflammatory responses and preventing from pulmonary ischemia-reperfusion injury. Choices of cardiopulmonary bypass circuit and apparatus, innovative cardiopulmonary bypass techniques, modified surgical maneuvers and several pharmaceutical agents can be potential preventive strategies for acute lung injury during cardiopulmonary bypass.

  10. Cornual heterotopic pregnancy: contemporary management options.

    Science.gov (United States)

    Habana, A; Dokras, A; Giraldo, J L; Jones, E E

    2000-05-01

    This review covers the clinical presentations, treatments, and outcomes of cornual heterotopic pregnancies reported in the literature. Infertile women with a history of ectopic pregnancy, tubal surgery, or disease are at increased risk for cornual heterotopic pregnancy when they undergo in vitro fertilization. Women who have undergone bilateral salpingectomy also seem to be predisposed to this condition when they undergo in vitro fertilization. We recommend that these patients be followed up closely after a successful in vitro fertilization cycle with monitoring of serum beta-human chorionic gonadotropin levels and serial transvaginal ultrasonography because of the high associated morbidity. Laparotomy remains the treatment of choice for rupture of a cornual heterotopic pregnancy. In the absence of cornual rupture, however, medical management is an option that eliminates the risk of surgery and anesthesia and results in outcomes similar to those associated with surgical treatment. Currently there is insufficient evidence to recommend any single treatment modality, and the decision should be based on such factors as clinical presentation, surgeon's expertise, side effects, overall cost, and the patient's preference.

  11. Pelvic radiation disease: Updates on treatment options

    Science.gov (United States)

    Frazzoni, Leonardo; La Marca, Marina; Guido, Alessandra; Morganti, Alessio Giuseppe; Bazzoli, Franco; Fuccio, Lorenzo

    2015-01-01

    Pelvic cancers are among the most frequently diagnosed neoplasms and radiotherapy represents one of the main treatment options. The irradiation field usually encompasses healthy intestinal tissue, especially of distal large bowel, thus inducing gastrointestinal (GI) radiation-induced toxicity. Indeed, up to half of radiation-treated patients say that their quality of life is affected by GI symptoms (e.g., rectal bleeding, diarrhoea). The constellation of GI symptoms - from transient to long-term, from mild to very severe - experienced by patients who underwent radiation treatment for a pelvic tumor have been comprised in the definition of pelvic radiation disease (PRD). A correct and evidence-based therapeutic approach of patients experiencing GI radiation-induced toxicity is mandatory. Therapeutic non-surgical strategies for PRD can be summarized in two broad categories, i.e., medical and endoscopic. Of note, most of the studies have investigated the management of radiation-induced rectal bleeding. Patients with clinically significant bleeding (i.e., causing chronic anemia) should firstly be considered for medical management (i.e., sucralfate enemas, metronidazole and hyperbaric oxygen); in case of failure, endoscopic treatment should be implemented. This latter should be considered the first choice in case of acute, transfusion requiring, bleeding. More well-performed, high quality studies should be performed, especially the role of medical treatments should be better investigated as well as the comparative studies between endoscopic and hyperbaric oxygen treatments. PMID:26677440

  12. THE STRATEGIC OPTIONS IN INVESTMENT PROJECTS VALUATION

    Directory of Open Access Journals (Sweden)

    VIOLETA SĂCUI

    2012-11-01

    Full Text Available The topic of real options applies the option valuation techniques to capital budgeting exercises in which a project is coupled with a put or call option. In many project valuation settings, the firm has one or more options to make strategic changes to the project during its life. These strategic options, which are known as real options, are typically ignored in standard discounted cash-flow analysis where a single expected present value is computed. This paper presents the types of real options that are met in economic activity.

  13. Treatment Option Overview (Penile Cancer)

    Science.gov (United States)

    ... Laser surgery : A surgical procedure that uses a laser beam (a narrow beam of intense light) as a knife to make bloodless cuts in tissue or to remove a surface lesion such as a tumor. Cryosurgery : A treatment that uses an instrument to freeze and destroy ...

  14. Surgical packages for laparoscopic surgery

    Directory of Open Access Journals (Sweden)

    Bhattacharya K

    2005-01-01

    Full Text Available ′Packages′ are in fashion today for most surgical procedures in various corporate hospitals and this has included laparoscopic procedures too. A package system enables the hospitals to get cost settlements done more easily. Also, it is more convenient for the patients who are aware upfront of the charges. The principal disadvantages seems to be for the surgeon, who may face displeasure of the patient, hospital or insurance agencies apart from forfeiting his personal charges if (a he is a novice in laparoscopic surgery and takes extra time to complete a procedure, (b unforeseen problems occur during surgery, or (c new pathologies are discovered on exploration.

  15. The efficacy of VATS, subxiphoid and minithoracotomy pericardial window for surgical management of symptomatic pericardial effusions

    Directory of Open Access Journals (Sweden)

    Sezai Çelik

    2014-03-01

    Full Text Available Objective: Pericardial effusion potentially cause significant morbidity and mortality. Pericardial window by video-assisted thoracic surgery (VATS, subxiphoid and minithoracotomy is available surgical treatment options. The aim of this study is to determine the efficacy and outcome of the three different methods for surgical management of symptomatic pericardial effusions. Methods: A retrospective study of patients operated for pericardial effusion between October 2007 to December 2011 at Dr. Siyami Ersek Hospital were divided into three groups according to surgical treatment d: Group 1 (VATS, n=24, Group 2 (Subxiphoid, n=28 Group 3 (Minithoracotomy, n=36. The groups were analyzed and compared using demographic information, operative and postoperative details and course, recurrence, follow-up data, morbidity, mortality and survival. Results: A total of 88 patients (37 women, 51 men, with mean age 54.47±16.81 underwent pericardial window were included in the study. The groups had similar perioperative characteristics except sex distribution and etiology. VATS, Subxiphoid and minithoracotomy pericardial window were well tolerated by patients, resulted in similar rates of mortality, 30-day mortality, overall postoperative complications, recurrence rates and survival. Operative time was significantly shorter in group 3 (p0.05. Group 2 had a significantly higher lenght of hospital stay (p<0.05. Conclusion: Minithoracotomy pericardial window provides rapid and definitive diagnosis and treatment for pericardial effusions of all causes acceptable morbidity rates. On the other hand, VATS and subxiphoid pericardial window should be performed in selected cases.

  16. Decision making in the surgical treatment of meralgia paresthetica: neurolysis versus neurectomy.

    Science.gov (United States)

    de Ruiter, Godard C W; Wurzer, Johannes A L; Kloet, Alfred

    2012-10-01

    Surgical treatment options for meralgia paresthetica include neurolysis and neurectomy procedures. Reported success rates for pain relief are generally higher after neurectomy, but an obvious disadvantage compared with neurolysis is the loss of sensation in the anterolateral part of the thigh. In this study we analyzed our results on pain relief after both procedures, and we determined the impact of loss of sensation with a questionnaire. Between 1999 and 2009, all patients with persistent symptoms of meralgia paresthetica who presented to our clinic after failure of conservative treatment were offered a neurectomy procedure. After this period, the surgical strategy was changed to first neurolysis followed by neurectomy in case of failure. We retrospectively analyzed our results for both strategies with a questionnaire that was focused on pain relief, numbness and the impact of numbness. Ten patients underwent a neurolysis with a 60 % pain relief rate compared to 87.5 % of the eight patients that primarily underwent a neurectomy. Most neurectomy patients (62.5 %) were not hindered by the numbness, 25 % sometimes and only one patient was frequently bothered, but was still satisfied with the outcome. The failures of neurolysis were secondarily treated by neurectomy, which resulted in pain relief in three out of four patients. This series confirms previous reports in the literature that have shown higher success rates for the neurectomy procedure. In addition, it shows that most patients are not bothered by the numbness following this procedure. These observations can be used in the surgical decision making for meralgia paresthetica.

  17. SUrgical versus PERcutaneous Bypass: SUPERB-trial; Heparin-bonded endoluminal versus surgical femoro-popliteal bypass: study protocol for a randomized controlled trial

    Directory of Open Access Journals (Sweden)

    Wallis de Vries Bas M

    2011-07-01

    Full Text Available Abstract Background Endovascular treatment options for the superficial femoral artery are evolving rapidly. For long lesions, the venous femoropopliteal bypass considered to be superior above the prosthetic bypass. An endoluminal bypass, however, may provide equal patency rates compared to the prosthetic above knee bypass. The introduction of heparin-bonded endografts may further improve patency rates. The SUrgical versus PERcutaneous Bypass (SuperB study is designed to assess whether a heparin-bonded endoluminal bypass provides equal patency rates compared to the venous bypass and to prove that it is associated with improved quality of life, related to a decreased complication rate, or not. Methods/design Two-hundred-twenty-two patients with peripheral arterial occlusive disease, category 3-6 according to Rutherford, will be randomized in two treatment arms; 1. the surgical femoro-popliteal bypass, venous whenever possible, and 2. the heparin-bonded endoluminal bypass. The power analysis was based on a non-inferiority principle, with an effect size of 90% and 10% margins (alpha 5%, power 80%. Patients will be recruited from 5 teaching hospitals in the Netherlands during a 2-year period. The primary endpoint is primary patency and quality of life evaluated by the RAND-36 questionnaire and the Walking Impairment Questionnaire. Secondary endpoints include secondary patency, freedom-from-TLR and complications. Discussion The SuperB trial is a multicentre randomized controlled trial designed to show non-inferiority in patency rates of the heparin-bonded endograft compared to the surgical bypass for treatment of long SFA lesions, and to prove a better quality of life using the heparin bonded-endograft compared to surgically treatment, related to a reduction in complications. Trial Registration Clinicaltrials: NCT01220245

  18. Equity Portfolio Management Using Option Price Information

    DEFF Research Database (Denmark)

    Christoffersen, Peter; Pan, Xuhui (Nick)

    We survey the recent academic literature that uses option-implied information to construct equity portfolios. Studies show that equity managers can earn a positive alpha by using information in individual equity options, by using stocks' exposure to information in market index options, and by using...... stocks' exposure to crude oil option information. Option-implied information can also help construct better mean-variance portfolios and better estimates of market beta....

  19. Equity Portfolio Management Using Option Price Information

    DEFF Research Database (Denmark)

    Christoffersen, Peter; Pan, Xuhui (Nick)

    We survey the recent academic literature that uses option-implied information to construct equity portfolios. Studies show that equity managers can earn a positive alpha by using information in individual equity options, by using stocks' exposure to information in market index options, and by using...... stocks' exposure to crude oil option information. Option-implied information can also help construct better mean-variance portfolios and better estimates of market beta....

  20. How federalism shapes public health financing, policy, and program options.

    Science.gov (United States)

    Ogden, Lydia L

    2012-01-01

    In the United States, fiscal and functional federalism strongly shape public health policy and programs. Federalism has implications for public health practice: it molds financing and disbursement options, including funding formulas, which affect allocations and program goals, and shapes how funding decisions are operationalized in a political context. This article explores how American federalism, both fiscal and functional, structures public health funding, policy, and program options, investigating the effects of intergovernmental transfers on public health finance and programs.

  1. MANAGEMENT OF INTRINSIC DISCOLORATION - ADVANCED TREATMENT OPTIONS: CASE REPORT

    Directory of Open Access Journals (Sweden)

    Rashmi G

    2014-01-01

    Full Text Available Aesthetics of the teeth is of great importance to patients , including tooth color. Of the various causes of tooth discoloration fluorosis , enamel hypoplasia , medication staining etc. is commonly encountered. The treatment options for discoloration are varied depending on individual case basis. The purpose of this article is to report the advanced treatment options for generalized intrinsic discoloration encompassing power bleaching to veneers to full mouth rehabilitation w ith porcelain laminates and ceramic crowns

  2. [Surgical research in Germany. Organization, quality and international competitiveness].

    Science.gov (United States)

    Menger, M D; Laschke, M W

    2012-04-01

    Surgical research in Germany is performed within surgical clinics by individual working groups or in surgical research divisions. Additionally, a few independent institutes and departments of surgical research have been established at medical faculties. The number of these institutions, however, is too small. To increase productivity in surgical research, structural changes are necessary, including additional establishment of further institutes and professorships. The quality of clinical research in surgery in Germany is critically discussed. International comparison shows that Germany has a low ranking with respect to the number of clinical studies published in leading surgical journals. However, there has been some improvement in the quality of clinical studies performed in surgical departments during the last 15 years. The establishment of the study center of the German Society of Surgery shows that excellent clinical studies with adequate numbers of patients can also be performed in Germany and can be published in leading journals. Accordingly, there is need to distribute the structures and the competence necessary to perform clinical studies in a standardized manner to all surgical departments involved in clinical research. The experimental surgical research in Germany is not adequately visible, although over the last 10 years the most relevant publications from institutions for surgical research have been placed in journals with a mean impact factor of 8. This may be due to the fact that 85% of these top publications are published in non-surgical journals. The aim for the future must therefore be to increase the impact factor and, thus, the attractiveness of surgical journals. This may be achieved by publishing the highest quality results from experimental surgical research not in non-surgical but in surgical journals.

  3. [Optimizing surgical hand disinfection].

    Science.gov (United States)

    Kampf, G; Kramer, A; Rotter, M; Widmer, A

    2006-08-01

    For more than 110 years hands of surgeons have been treated before a surgical procedure in order to reduce the bacterial density. The kind and duration of treatment, however, has changed significantly over time. Recent scientific evidence suggests a few changes with the aim to optimize both the efficacy and the dermal tolerance. Aim of this article is the presentation and discussion of new insights in surgical hand disinfection. A hand wash should be performed before the first disinfection of a day, ideally at least 10 min before the beginning of the disinfection as it has been shown that a 1 min hand wash significantly increases skin hydration for up to 10 min. The application time may be as short as 1.5 min depending on the type of hand rub. Hands and forearms should be kept wet with the hand rub for the recommended application time in any case. A specific rub-in procedure according to EN 12791 has been found to be suitable in order to avoid untreated skin areas. The alcohol-based hand rub should have a proven excellent dermal tolerance in order to ensure appropriate compliance. Considering these elements in clinical practice can have a significant impact to optimize the high quality of surgical hand disinfection for prevention of surgical site infections.

  4. [Idiopathic Progressive Subglottic Stenosis: Surgical Techniques].

    Science.gov (United States)

    Hoetzenecker, K; Schweiger, T; Klepetko, W

    2016-09-01

    Idiopathic subglottic stenosis is a disease characterized by slow, progressive scarring and constriction of the subglottic airway. It almost always occurs in females between the 3rd and 5th decade of life. Symptoms are frequently misinterpreted as asthma and patients are referred for endoscopic evaluation only when asthma medications fail to alleviate their symptoms. Treatment options can be divided into endoscopic and open surgical techniques. Microlaryngoscopic scar reduction by laser followed by balloon dilation usually delivers good short-term results. However, the majority of patients will experience restenosis within a short period of time. Open surgical correction techniques are based on a complete removal of the affected airway segment. This must be combined with various extended resection techniques in patients with advanced stenosis. Depending on the extent and severity of the stenosis the following surgical techniques are required: standard cricotracheal resection (Grillo's technique), cricoplasty with dorsal and lateral mucosaplasty, or a combination of resection and enlargement techniques using rib cartilage grafts. In experienced centres, success rates of over 95 % are reported with good functional outcome of voice and deglutition.

  5. Surgical approaches for tongue base schwannoma.

    Science.gov (United States)

    Ying, Binbin; Zhu, Songsong; Qiao, Yang; Ye, Weimin; Maimaiti, Abdikerimjian; Hu, Jingzhou; Zhang, Yong

    2013-01-01

    Schwannomas (neurilemmomas) are benign nerve sheath tumor originating from Schwann cells. They are well circumscribed and rarely infiltrate and metastasize. Schwannomas of the head and neck commonly occur in the tongue followed by the palate, floor of mouth, buccal mucosa, and mandible. Tongue base schwannomas could extend to the pharyngeal cavity or the floor of the mouse, and it is difficult to differentiate between tumors of the lingual, hypoglossal, and glossopharyngeal nerves.Surgical treatment of tongue base schwannomas is difficult because of limited operative exposure. Although mandibulotomy with lip splitting could obtain good exposure, surgeons might strike a balance between exposure obtaining and morbidity following because there are intricate neurovascular anatomical relationships in this region, and mandibulotomy with lip splitting would cause significant morbidity. Surgical approach options are important for tongue base schwannoma removal. From March 2008 to March 2010, 8 patients were clinically and pathologically diagnosed with tongue base schwannomas in our department, and all underwent surgical treatment. In our experience, transoral approach was used for tongue base schwannomas extending to the floor of the mouse and suprahyroid pharyngotomy approach for those extending to the pharyngeal cavity. Follow-up was made until now. One patient who experienced transoral excision still experienced numbness in the region of the lateral tongue tip, and the other 7 patients had no postoperative long-term complications.

  6. Distally Based Iliotibial Band Flap: Anatomic Study with Surgical Considerations.

    Science.gov (United States)

    Wong, Victor W; Higgins, James P

    2016-09-01

    Background Reconstruction of high-risk fascia, tendon, or ligament defects may benefit from vascularized tissue. The iliotibial band (ITB), a thick fibrous tract of connective tissue, serves as a potential donor site for free tissue transfer but its blood supply has not been thoroughly investigated. The aim of this anatomical study was to investigate the vascular supply to the distal ITB and its role as a free fascial flap. Methods We dissected 16 fresh-frozen cadaveric legs and injected latex into the superolateral geniculate artery (SLGA). A distal ITB fascial flap was designed and measurements were taken for flap dimensions, pedicle length and size, and SLGA perfusion territory. Results The SLGA perfused 11.5 ± 2.3 cm of distal ITB (proximal to the lateral femoral epicondyle) and provided 6.4 ± 0.7cm of pedicle length to the ITB flap. Conclusions Chimeric options to include bone (from the lateral femoral condyle), cartilage (from the lateral femoral trochlea), muscle (from vastus lateralis or biceps femoris), and skin are possible. Surgical harvest techniques are proposed, including preservation of ITB insertions to minimize lateral knee instability. Clinical validation is needed to determine the role of the distal ITB free fascial flap in reconstructive microsurgery.

  7. Comparison of the different surgical approaches for lumbar interbody fusion.

    Science.gov (United States)

    Talia, Adrian J; Wong, Michael L; Lau, Hui C; Kaye, Andrew H

    2015-02-01

    This review will outline the history of spinal fusion. It will compare the different approaches currently in use for interbody fusion. A comparison of the techniques, including minimally invasive surgery and graft options will be included. Lumbar interbody fusion is a commonly performed surgical procedure for a variety of spinal disorders, especially degenerative disease. Currently this procedure is performed using anterior, lateral, transforaminal and posterior approaches. Minimally invasive techniques have been increasing in popularity in recent years. A posterior approach is frequently used and has good fusion rates and low complication rates but is limited by the thecal and nerve root retraction. The transforaminal interbody fusion avoids some of these complications and is therefore preferable in some situations, especially revision surgery. An anterior approach avoids the spinal cord and cauda equina all together, but has issues with visceral exposure complications. Lateral lumbar interbody fusion has a risk of lumbar plexus injury with dissection through the psoas muscle. Studies show less intraoperative blood loss for minimally invasive techniques, but there is no long-term data. Iliac crest is the gold standard for bone graft, although adjuncts such as bone morphogenetic proteins are being used more frequently, despite their controversial history. More high-level studies are needed to make generalisations regarding the outcomes of one technique compared with another.

  8. Bernese periacetabular osteotomy for hip dysplasia: Surgical technique and indications.

    Science.gov (United States)

    Kamath, Atul F

    2016-05-18

    For young, active patients with healthy hip cartilage, pelvic osteotomy is a surgical option in to address hip pain and to improve mechanical loading conditions related to dysplasia. Hip dysplasia may lead to arthrosis at an early age due to poor coverage of the femoral head and abnormal loading of the joint articulation. In patients with symptomatic dysplasia and closed triradiate cartilage (generally over age 10), including adolescents and young adults (generally up to around age 40), the Bernese periacetabular osteotomy (PAO) is a durable technique for addressing underlying structural deformity. The PAO involves a modified Smith-Petersen approach. Advantages of the Bernese osteotomy include preservation of the weight-bearing posterior column of the hemi-pelvis, preservation of the acetabular blood supply, maintenance of the hip abductor musculature, and the ability to effect powerful deformity correction about an ideal center of rotation. There is an increasing body of evidence that preservation of the native hip can be improved through pelvic osteotomy. In contrast to hip osteotomy and joint preservation, the role of total hip arthroplasty in young, active patients with correctable hip deformity remains controversial. Moreover, the durability of hip replacement in young patients is inherently limited. Pelvic osteotomy should be considered the preferred method to address correctable structural deformity of the hip in the young, active patient with developmental dysplasia. The Bernese PAO is technically demanding, yet offers reproducible results with good long-term survivorship in carefully selected patients with preserved cartilage and the ability to meet the demands of rehabilitation.

  9. Local antimicrobial administration for prophylaxis of surgical site infections.

    Science.gov (United States)

    Huiras, Paul; Logan, Jill K; Papadopoulos, Stella; Whitney, Dana

    2012-11-01

    Despite a lack of consensus guidelines, local antibiotic administration for prophylaxis of surgical site infections is used during many surgical procedures. The rationale behind this practice is to provide high antibiotic concentrations at the site of surgery while minimizing systemic exposure and adverse effects. Local antibiotic administration for surgical site prophylaxis has inherent limitations in that antibiotics are applied after the incision is made, rather than the current standard for surgical site prophylaxis that recommends providing adequate antibiotic concentrations at the site before the incision. The efficacy and safety of local application of antibiotics for surgical site prophylaxis have been assessed in different types of surgery with a variety of antibiotic agents and methods of application. We identified 22 prospective, randomized, controlled trials that evaluated local application of antibiotics for surgical site prophylaxis. These trials were subsequently divided and analyzed based on the type of surgical procedure: dermatologic, orthopedic, abdominal, colorectal, and cardiothoracic. Methods of local application analyzed included irrigations, powders, ointments, pastes, beads, sponges, and fleeces. Overall, there is a significant lack of level I evidence supporting this practice for any of the surgical genres evaluated. In addition, the literature spans several decades, and changes in surgical procedures, systemic antibiotic prophylaxis, and microbial flora make conclusions difficult to determine. Based on available data, the efficacy of local antibiotic administration for the prophylaxis of surgical site infections remains uncertain, and recommendations supporting this practice for surgical site prophylaxis cannot be made.

  10. Union Spinning Mills - Cleaner Production option report

    DEFF Research Database (Denmark)

    Wenzel, Henrik; Schneider, Zsig

    and dyehouse technologists Dennis Robertson and Barry Gatenby • From Pollution Research Group, Natal University, Durban: Mr. Zsig Schneider • From Institute for Product Development, Denmark: Mr. Henrik Wenzel This team of people collected information on recipes and flow schematics on the various wet treatment...... operations in the dyehouse, and water and energy balances were made to the extent data allowed. A number of options for saving water, energy and chemicals were identified. The potentials monetary savings and necessary investments were estimated, and a list of priority projects including milestone plans...

  11. Punishment in optional public goods games

    Science.gov (United States)

    Wang, Zhen; Xu, Zhao-Jin; Zhang, Lian-Zhong

    2010-11-01

    In this work, the optional public goods games with punishment are studied. By adopting the approximate best response dynamics, a micro model is given to explain the evolutionary process. Simultaneously, the magnitude of rationality is also considered. Under the condition of bounded rationality which provides a light to interpret phenomena in human society, the model leads to two types of equilibriums. One is the equilibrium without punishers and the other is the equilibrium including only punishers and cooperators. In addition, the effects of rationality on equilibriums are briefly investigated.

  12. Punishment in optional public goods games

    Institute of Scientific and Technical Information of China (English)

    Wang Zhen; Xu Zhao-Jin; Zhang Lian-Zhong

    2010-01-01

    In this work, the optional public goods games with punishment are studied. By adopting the approximate best response dynamics, a micro model is given to explain the evolutionary process. Simultaneously, the magnitude of rationality is also considered. Under the condition of bounded rationality which provides a light to interpret phenomena in human society, the model leads to two types of equilibriums. One is the equilibrium without punishers and the other is the equilibrium including only punishers and cooperators. In addition, the effects of rationality on equilibriums are briefly investigated.

  13. Options for promoting high-biodiversity REDD+

    Energy Technology Data Exchange (ETDEWEB)

    Swan, Steve; Mcnally, Richard; Grieg-Gran, Maryanne; Roe, Dilys; Mohammed, Essam Yassin

    2011-11-15

    International climate and biodiversity conventions agree that to be effective in the long term, strategies to reduce emissions from deforestation, forest degradation, conservation and enhancement of forest carbon stocks, and sustainable forest management (REDD+), must not undermine biodiversity. But how do countries achieve 'high-biodiversity REDD+' in practice? At a global level, options include immediate policy strengthening in international negotiations; promotion of co-benefit standards; and financial incentives and preferences for buying countries. At a national level, developing countries can also promote high-biodiversity REDD+ through more coherent policies; integrated planning; regulatory and economic instruments; and improved monitoring of biodiversity impacts.

  14. Disposable surgical face masks for preventing surgical wound infection in clean surgery

    Directory of Open Access Journals (Sweden)

    Allyson Lipp

    Full Text Available BACKGROUND: Surgical face masks were originally developed to contain and filter droplets containing microorganisms expelled from the mouth and nasopharynx of healthcare workers during surgery, thereby providing protection for the patient. However, there are several ways in which surgical face masks could potentially contribute to contamination of the surgical wound, e.g. by incorrect wear or by leaking air from the side of the mask due to poor string tension. OBJECTIVES: To determine whether disposable surgical face masks worn by the surgical team during clean surgery prevent postoperative surgical wound infection. SEARCH METHODS: We searched The Cochrane Wounds Group Specialised Register (searched 14 September 2011; The Cochrane Central Register of Controlled Trials (CENTRAL (The Cochrane Library 2011, Issue 3; Ovid MEDLINE (2008 to August Week 5 2011; Ovid MEDLINE (In-Process &Other Non-Indexed Citations September 13, 2011; Ovid EMBASE (2008 to 2011 Week 35; and EBSCO CINAHL (2008 to 9 September 2011. SELECTION CRITERIA: Randomized controlled trials (RCTs and quasi-randomized controlled trials comparing the use of disposable surgical masks with the use of no mask. DATA COLLECTION AND ANALYSIS: Two review authors extracted data independently. MAIN RESULTS: Three trials were included, involving a total of 2113 participants. There was no statistically significant difference in infection rates between the masked and unmasked group in any of the trials. AUTHORS' CONCLUSIONS: From the limited results it is unclear whether the wearing of surgical face masks by members of the surgical team has any impact on surgical wound infection rates for patients undergoing clean surgery.

  15. Surgical strategies in the treatment of chronic pancreatitis

    Science.gov (United States)

    Zhao, Xin; Cui, Naiqiang; Wang, Ximo; Cui, Yunfeng

    2017-01-01

    Abstract Background: Chronic pancreatitis (CP) is a common and frequently occurring disease. Pancreaticoduodenectomy (PD), pylorus-preserving pancreaticoduodenectomy (PPPD), and duodenum-preserving pancreatic head resection (DPPHR) are important treatment options for patients with chronic pancreatitis. The Beger and Frey procedures are 2 main duodenum-preserving techniques in duodenum-preserving pancreatic head resection (DPPHR) strategies. We conducted this systematic review and meta-analysis to compare the clinical efficacy of DPPHR versus PD, the Beger procedure versus PD, the Frey procedure versus PD, and the Beger procedure versus the Frey procedure in the treatment of pancreatitis. The optimal surgical option for chronic pancreatitis is still under debate. The aim of this systematic review and meta-analysis was to evaluate the clinical efficacy of different surgical strategies for chronic pancreatitis. Methods: Five databases (PubMed, Medline, SinoMed, Embase, and Cochrane Library) were searched with the limitations of human subjects and randomized controlled trials (RCTs) text. Data were extracted by 2 of the coauthors independently and analyzed using the RevMan statistical software, version 5.3. Weighted mean differences (WMDs), risk ratios (RRs), and 95% confidence intervals (CIs) were calculated. Cochrane Collaboration's Risk of Bias Tool was used to assess the risk of bias. Results: Seven studies involving a total of 385 patients who underwent the surgical treatments were assessed. The methodological quality of the trials ranged from low to moderate and included PD (n = 134) and DPPHR (n = 251 [Beger procedure = 100; Frey procedure = 109; Beger or Frey procedure = 42]). There were no significant differences between DPPHR and PD in post-operation mortality (RR = 2.89, 95% CI = 0.31–26.87, P = 0.36), pain relief (RR = 1.09, 95% CI = 0.94–1.25, P = 0.26), exocrine insufficiency (follow-up time > 60 months

  16. Analytic device including nanostructures

    KAUST Repository

    Di Fabrizio, Enzo M.

    2015-07-02

    A device for detecting an analyte in a sample comprising: an array including a plurality of pixels, each pixel including a nanochain comprising: a first nanostructure, a second nanostructure, and a third nanostructure, wherein size of the first nanostructure is larger than that of the second nanostructure, and size of the second nanostructure is larger than that of the third nanostructure, and wherein the first nanostructure, the second nanostructure, and the third nanostructure are positioned on a substrate such that when the nanochain is excited by an energy, an optical field between the second nanostructure and the third nanostructure is stronger than an optical field between the first nanostructure and the second nanostructure, wherein the array is configured to receive a sample; and a detector arranged to collect spectral data from a plurality of pixels of the array.

  17. Surgical Regenerative Treatments for Peri-Implantitis: Meta-analysis of Recent Findings in a Systematic Literature Review

    Directory of Open Access Journals (Sweden)

    Povilas Daugela

    2016-09-01

    Full Text Available Objectives: The purpose of the present study was to systematically review the literature on the surgical regenerative treatment of the peri-implantitis and to determine an effective therapeutic predictable option for their clinical management. Material and Methods: The study searched MEDLINE and EMBASE databases from 2006 to 2016. Clinical human studies that had reported changes in probing depth (PD and/or bleeding on probing (BOP and/or radiologic marginal bone level (RBL changes after peri-implantitis surgical treatment at 12-month follow-up or longer were included accordingly to PRISMA guidelines. Results: The initial search obtained 883 citations. After screening and determination of eligibility, 18 articles were included in the review. The meta-analysis of selected studies revealed that the weighted mean RBL fill was 1.97 mm (95% confidence interval [CI] = 1.58 to 2.35 mm, PD reduction was 2.78 mm (95% CI = 2.31 to 3.25 mm, and BOP reduced by 52.5% (95% CI = 41.6 to 63.1%. Defect fill in studies using and not using barrier membranes for graft coverage was 1.86 mm (95% CI = 1.36 to 2.36 mm and 2.12 mm (95% CI = 1.46 to 2.78 mm correspondingly. High heterogeneity among the studies regarding defects morphology, surgical protocols, and selection of biomaterials were found. Conclusions: All included studies underlined an improvement of clinical conditions after the surgical regenerative treatment of peri-implantitis, however, there is a lack of scientific evidence in the literature regarding the superiority of the regenerative versus non-regenerative surgical treatment. The presence of a barrier membrane or submergence in the regenerative procedure does not seem to be fundamental in order to obtain clinical success of the surgery.

  18. Option Pricing using Realized Volatility

    DEFF Research Database (Denmark)

    Stentoft, Lars Peter

    In the present paper we suggest to model Realized Volatility, an estimate of daily volatility based on high frequency data, as an Inverse Gaussian distributed variable with time varying mean, and we examine the joint properties of Realized Volatility and asset returns. We derive the appropriate...... benchmark model estimated on return data alone. Hence the paper provides evidence on the value of using high frequency data for option pricing purposes....

  19. Option Pricing using Realized Volatility

    DEFF Research Database (Denmark)

    Stentoft, Lars Peter

    In the present paper we suggest to model Realized Volatility, an estimate of daily volatility based on high frequency data, as an Inverse Gaussian distributed variable with time varying mean, and we examine the joint properties of Realized Volatility and asset returns. We derive the appropriate d...... benchmark model estimated on return data alone. Hence the paper provides evidence on the value of using high frequency data for option pricing purposes....

  20. Surgical treatment of hepatic echinococcosis in Prizren (Kosovo).

    Science.gov (United States)

    Avdaj, Afrim; Namani, Sadie

    2014-12-01

    Management option of hepatic echinococcosis represents a major challenge for a surgeon. The aim of the study was to evaluate surgical treatment of patients with hepatic echinococcosis at the surgery department of the regional hospital in Prizren (Kosovo). The medical records of 22 patients operated for hepatic echinococcosis in our department during a four year study period (2009-2013) were retrospectively reviewed. Apart from the total of 5850 operated patients, 22 cases were diagnosed for liver echinococcosis (0.4%). The most affected age group was from 26 to 50 years (54.5%). Female gender, 16 cases (73%), and patients living in rural places, 14 patients (64%), dominated significantly. The most affected region was Municipality of Dragash. All patients underwent ultrasonography, 13 patients underwent CT scans and 5 patients MRI of abdomen. The mean preoperative ultrasonographic diameter of cysts was 9.5 cm and maximal 21 cm. Cysts were most often localized in right hepatic lobe (77%) and subcostal laparotomy was most commonly performed (82%). The performed surgical procedures were: endocystectomy and partial pericystectomy with omentoplication according to Papadimitris (73%), endocystectomy and capitonnage and endocystectomy with external drainage (14%). The laparoscopic approach was used only in one patient. In conclusion, hepatic echinococosis was not common among operated patients at our surgery department. Subcostal laparotomy with endocystectomy and partial pericystectomy with omentoplication according to Papadimitris was most commonly used. Exact distribution of echinococcosis is needed to be analyzed with a larger cohort study including all surgery units in the country and with a longer monitoring.

  1. Surgical treatment of hepatic echinococcosis in Prizren (Kosovo

    Directory of Open Access Journals (Sweden)

    Afrim Avdaj

    2014-12-01

    Full Text Available Management option of hepatic echinococcosis represents a major challenge for a surgeon. The aim of the study was to evaluate surgical treatment of patients with hepatic echinococcosis at the surgery department of the regional hospital in Prizren (Kosovo. The medical records of 22 patients operated for hepatic echinococcosis in our department during a four year study period (2009–2013 were retrospectively reviewed. Apart from the total of 5850 operated patients, 22 cases were diagnosed for liver echinococcosis (0.4%. The most affected age group was from 26 to 50 years (54.5%. Female gender, 16 cases (73%, and patients living in rural places, 14 patients (64%, dominated significantly. The most affected region was Municipality of Dragash. All patients underwent ultrasonography, 13 patients underwent CT scans and 5 patients MRI of abdomen. The mean preoperative ultrasonographic diameter of cysts was 9.5 cm and maximal 21 cm. Cysts were most often localized in right hepatic lobe (77% and subcostal laparotomy was most commonly performed (82%. The performed surgical procedures were: endocystectomy and partial pericystectomy with omentoplication according to Papadimitris (73%, endocystectomy and capitonnage and endocystectomy with external drainage (14%. The laparoscopic approach was used only in one patient. In conclusion, hepatic echinococosis was not common among operated patients at our surgery department. Subcostal laparotomy with endocystectomy and partial pericystectomy with omentoplication according to Papadimitris was most commonly used. Exact distribution of echinococcosis is needed to be analyzed with a larger cohort study including all surgery units in the country and with a longer monitoring.

  2. A novel surgical procedure for bridging of massive bone defects

    Directory of Open Access Journals (Sweden)

    Springfield Dempsey S

    2005-02-01

    Full Text Available Abstract Background Bony defects arising from tumor resection or debridement after infection, non-union or trauma present a challenging problem to orthopedic surgeons, as well as patients due to compliance issues. Current treatment options are time intensive, require more than one operation and are associated with high rate of complications. For this reason, we developed a new surgical procedure to bridge a massive long bone defect. Methods To bridge the gap, an in situ periosteal sleeve is elevated circumferentially off of healthy diaphyseal bone adjacent to the bone defect. Then, the adjacent bone is osteotomized and the transport segment is moved along an intramedullary nail, out of the periosteal sleeve and into the original diaphyseal defect, where it is docked. Vascularity is maintained through retention of the soft tissue attachments to the in situ periosteal sleeve. In addition, periosteal osteogenesis can be augmented through utilization of cancellous bone graft or in situ cortical bone adherent to the periosteal sleeve. Results The proposed procedure is novel in that it exploits the osteogenic potential of the periosteum by replacing the defect arising from resection of tissue out of a pathological area with a defect in a healthy area of tissue, through transport of the adjacent bone segment. Furthermore, the proposed procedure has several advantages over the current standard of care including ease of implementation, rapid patient mobilization, and no need for specialized implants (intramedullary nails are standard inventory for surgical oncology and trauma departments or costly orthobiologics. Conclusions The proposed procedure offers a viable and potentially preferable alternative to the current standard treatment modalities, particularly in areas of the world where few surgeons are trained for procedures such as distraction osteogenesis (e.g. the Ilizarov procedure as well as areas of the world where surgeons have little access to

  3. Reducing and exaggerating escalation of commitment by option partitioning.

    Science.gov (United States)

    Kwong, Jessica Y Y; Wong, Kin Fai Ellick

    2014-07-01

    Options under escalation situations can be presented as a general class (e.g., investing in electronic products) or be partitioned into disjunctive suboptions within that class (e.g., investing in MP3 players, portable TV game consoles, and other electronic products). Drawing from the theoretical bases of partition priming and mental accounting, this research found support from 4 experiments that (a) a decision maker's commitment to a failing course of action is exaggerated when the escalation options are partitioned into multiple suboptions, whereas such commitment is reduced when the alternative options are portioned into suboptions, and (b) these partitioning effects are mediated by the subjective utility, including subjective values and probability, of the escalation option.

  4. Engineering Options Assessment Report. Nitrate Salt Waste Stream Processing

    Energy Technology Data Exchange (ETDEWEB)

    Anast, Kurt Roy [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2015-11-13

    This report examines and assesses the available systems and facilities considered for carrying out remediation activities on remediated nitrate salt (RNS) and unremediated nitrate salt (UNS) waste containers at Los Alamos National Laboratory (LANL). The assessment includes a review of the waste streams consisting of 60 RNS, 29 above-ground UNS, and 79 candidate below-ground UNS containers that may need remediation. The waste stream characteristics were examined along with the proposed treatment options identified in the Options Assessment Report . Two primary approaches were identified in the five candidate treatment options discussed in the Options Assessment Report: zeolite blending and cementation. Systems that could be used at LANL were examined for housing processing operations to remediate the RNS and UNS containers and for their viability to provide repackaging support for remaining LANL legacy waste.

  5. Engineering Options Assessment Report: Nitrate Salt Waste Stream Processing

    Energy Technology Data Exchange (ETDEWEB)

    Anast, Kurt Roy [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2015-11-18

    This report examines and assesses the available systems and facilities considered for carrying out remediation activities on remediated nitrate salt (RNS) and unremediated nitrate salt (UNS) waste containers at Los Alamos National Laboratory (LANL). The assessment includes a review of the waste streams consisting of 60 RNS, 29 aboveground UNS, and 79 candidate belowground UNS containers that may need remediation. The waste stream characteristics were examined along with the proposed treatment options identified in the Options Assessment Report . Two primary approaches were identified in the five candidate treatment options discussed in the Options Assessment Report: zeolite blending and cementation. Systems that could be used at LANL were examined for housing processing operations to remediate the RNS and UNS containers and for their viability to provide repackaging support for remaining LANL legacy waste.

  6. Surgical spacer placement and proton radiotherapy for unresectable hepatocellular carcinoma

    Institute of Scientific and Technical Information of China (English)

    Shohei; Komatsu; Yuichi; Hori; Takumi; Fukumoto; Masao; Murakami; Yoshio; Hishikawa; Yonson; Ku

    2010-01-01

    Few potentially curative treatment options exist apart from hepatic resection for patients with huge hepatocellular carcinoma (HCC). Proton radiotherapy is a promising new modality which has an inherent antitumor effect against HCC. However, the application of proton radiotherapy for tumors adjacent to the gastrointestinal tract is restricted because the tolerance dose of the intestine is extremely low. A novel two-step treatment was developed with surgical spacer placement and subsequent proton radiotherap...

  7. Approach to Pediatric Patients during Surgical Interventions

    Directory of Open Access Journals (Sweden)

    Seher Ünver

    2013-12-01

    Full Text Available A child’s surgical period usually contains unpleasant and difficult experiences, for the child and the parents. The child in this period experiences greater anxiety and distress. On the other hand, pediatric patients have complex states that directly effects their perioperative care during. Because their perioperative care includes not only the knowledge of general surgical procedure and care of a patient in the operating room. It also includes the specific understanding of a child’s airway, anatomy and physiology, the understanding of child development and care of the child and family. This review is prepared to present these differences of the pediatric surgical patients and the care during their perioperative period. (Jo­ur­nal of Cur­rent Pe­di­at­rics 2013; 11: 128-33

  8. Cyclodialysis ab interno as a surgical approach to intractable glaucoma.

    Science.gov (United States)

    Jordan, Jens F; Dietlein, Thomas S; Dinslage, Sven; Lüke, Christoph; Konen, Walter; Krieglstein, Günter K

    2007-08-01

    In glaucoma filtration surgery, the problem of subconjunctival scarring has still not been satisfactorily solved. Suprachoroidal drainage of aqueous humour offers a promising, alternative option for intractable glaucoma. We here present a clinical study on the surgical approach of gonioscopic cyclodialysis ab interno. Twenty-eight eyes of 20 patients with intractable glaucoma were included in this prospective, consecutive, case-control study. The eyes had had a mean of 4.4 +/- 2.4 previous antiglaucomatous interventions. Baseline intraocular pressure (IOP) was 34.3 +/- 10.5 mmHg despite maximum therapy. Under gonioscopic control, cyclodialysis ab interno was performed over two clock times to gain access to the suprachoroidal space. No additional trabecular meshwork surgery was performed. Success was defined as a lowering of IOP to below 21 mmHg without the need for further medication or intervention. Mean postoperative IOP was 14.6 +/- 12.4 mmHg. Mean follow-up (FU) for all eyes was 121.8 days. After a mean of 60 days, 21 eyes (75%) needed further surgical intervention. Qualified success was seen in four eyes (14.3%), with a mean FU of 383.6 days. Three eyes (10.7%) showed absolute success after a mean FU period of 202.7 days. In our series, we obtained the best results for phakic eyes, followed by pseudophakic and aphakic eyes. The results of this study do not provide convincing evidence of the functional efficacy of cyclodialysis ab interno. Nevertheless, the technique is easy to perform and offers safe and atraumatic access to the resorptive capability of the choroid. Conjunctival manipulation is avoided. Contrary to reports in the current literature, in our series, the best results were obtained for phakic eyes, though the small number of eyes included does not allow reliable statistics. Further studies will need to focus on the use of different space-retaining substances or a widening of the cyclodialysis cleft to improve surgical outcome.

  9. The Factor Structure in Equity Options

    DEFF Research Database (Denmark)

    Christoffersen, Peter; Fournier, Mathieu; Jacobs, Kris

    Principal component analysis of equity options on Dow-Jones firms reveals a strong factor structure. The first principal component explains 77% of the variation in the equity volatility level, 77% of the variation in the equity option skew, and 60% of the implied volatility term structure across...... equities. Furthermore, the first principal component has a 92% correlation with S&P500 index option volatility, a 64% correlation with the index option skew, and a 80% correlation with the index option term structure. We develop an equity option valuation model that captures this factor structure...

  10. The surgery of peripheral nerves (including tumors)

    DEFF Research Database (Denmark)

    Fugleholm, Kåre

    2013-01-01

    Surgical pathology of the peripheral nervous system includes traumatic injury, entrapment syndromes, and tumors. The recent significant advances in the understanding of the pathophysiology and cellular biology of peripheral nerve degeneration and regeneration has yet to be translated into improved...... surgical techniques and better outcome after peripheral nerve injury. Decision making in peripheral nerve surgery continues to be a complex challenge, where the mechanism of injury, repeated clinical evaluation, neuroradiological and neurophysiological examination, and detailed knowledge of the peripheral...... nervous system response to injury are prerequisite to obtain the best possible outcome. Surgery continues to be the primary treatment modality for peripheral nerve tumors and advances in adjuvant oncological treatment has improved outcome after malignant peripheral nerve tumors. The present chapter...

  11. Vitiligo- A surgical approach

    Directory of Open Access Journals (Sweden)

    Deepti Ghia

    2012-01-01

    Full Text Available Aims and objective- To describe the spectrum of surgical modalities for stable vitiligo patients Methods- Patients having stable vitiligo since past 2 years with no improvement with medical line of treatment were enrolled for surgery after informed consent. Depending upon the size and location of vitiligo patch different modalities were performed. Suction blister, mini-punch grafting, split thickness skin grafting, trypsinised melanocyte-keratinocyte transfer and non-trypsinised melanocyte- keratinocyte transfer (Jodhpur technique and follicular grafting technique have been described photographically which have been performed at a tertiary care hospital. Conclusion- Vitiligo is often difficult to treat, stable patches resistant to medical line of management do respond to surgical treatment; however it is very important to choose the modality of surgery according location of the patch, size of the lesion and available resources.

  12. Treatment of margin positive basal cell carcinoma with vismodegib: case report and consideration of treatment options and their implications.

    Science.gov (United States)

    Bayers, Stephanie; Kapp, Daniel L; Beer, Kenneth R; Slavin, Benjamin

    2013-10-01

    Historically, basal cell carcinomas (BCCs) that are neither surgically resectable nor candidates for radiation therapy have had few treatment options. The hedgehog pathway inhibitor, vismodegib, represents a new opportunity for the treatment of such patients. Vismodegib has approval from the United States Food and Drug Administration for treatment of metastatic BCC, locally advanced BCC recurring after surgery, and BCC that is not treatable via surgery or radiation. We present the case of a patient with a BCC infiltrating the spinal column that was neither possible to fully remove surgically nor a candidate for primary treatment with radiation. Treatment with vismodegib followed by adjuvant radiation therapy resulted in complete disease clearance. Vismodegib represents a promising treatment option for patients with surgically non-resectable BCCs that are not candidates for radiation therapy. Mechanism of action, benefits, and adverse events of vismodegib are reviewed, along with a brief discussion on newer options in the hedgehog inhibitor class.

  13. Gossypiboma—Retained Surgical Sponge

    Directory of Open Access Journals (Sweden)

    Hung-Shun Sun

    2007-11-01

    Full Text Available Intra-abdominal retained surgical sponge is an uncommon surgical error. Herein, we report a 92-year-old woman who was brought to the emergency room for acute urinary retention. She had a history of vaginal hysterectomy for uterine prolapse 18 years previously, performed at our hospital. Retained surgical sponge in the pelvic cavity was suspected by abdominal computed tomography. The surgical gauze was removed by laparotomy excision and the final diagnosis was gossypiboma.

  14. Louis Pasteur surgical revolution.

    Science.gov (United States)

    Toledo-Pereyra, Luis H

    2009-01-01

    Louis Pasteur (1822-1895) is considered the most notable medical scientist of his time and perhaps one of the most distinguished of all times in the history of medicine. From Dole in France to Paris, from a student of crystals to "living ferments," and from chemistry to biology and medicine, Pasteur changed the world for the benefit of humanity. The genius of Pasteur dealt with the most pressing issues of his time, basing the germ theory on the effects that microorganisms had on fermentation and putrefaction of organic matter, which gave birth to the science of bacteriology. Many other difficult problems in medicine and biology were tackled by Pasteur, culminating in the spectacular results seen with the treatment of rabies. Surgery was no exception to the scientific conquests of Pasteur. The transformation of the surgical world arose from the antiseptic concepts of Lister that were based on the germ theory of the disease, which had been derived from the germ theory of fermentation and putrefaction discovered by Pasteur. The acceptance of these principles represented the surgical revolution brought on by the science of Pasteur, a revolution that is now accepted in our daily care of surgical patients.

  15. Guideline implementation: Surgical attire.

    Science.gov (United States)

    Cowperthwaite, Liz; Holm, Rebecca L

    2015-02-01

    Surgical attire helps protect patients from microorganisms that may be shed from the hair and skin of perioperative personnel. The updated AORN "Guideline for surgical attire" provides guidance on scrub attire, shoes, head coverings, and masks worn in the semirestricted and restricted areas of the perioperative setting, as well as how to handle personal items (eg, jewelry, backpacks, cell phones) that may be taken into the perioperative suite. This article focuses on key points of the guideline to help perioperative personnel adhere to facility policies and regulatory requirements for attire. The key points address the potential benefits of wearing scrub attire made of antimicrobial fabric, covering the arms when in the restricted area of the surgical suite, removing or confining jewelry when wearing scrub attire, disinfecting personal items that will be taken into the perioperative suite, and sending reusable attire to a health care-accredited laundry facility after use. Perioperative RNs should review the complete guideline for additional information and for guidance when writing and updating policies and procedures.

  16. Surgical navigation with QR codes

    Directory of Open Access Journals (Sweden)

    Katanacho Manuel

    2016-09-01

    Full Text Available The presented work is an alternative to established measurement systems in surgical navigation. The system is based on camera based tracking of QR code markers. The application uses a single video camera, integrated in a surgical lamp, that captures the QR markers attached to surgical instruments and to the patient.

  17. Development of stripper options for FRIB

    Energy Technology Data Exchange (ETDEWEB)

    Marti, F.; Hershcovitch, A.; Momozaki, Y.; Nolen, J.; Reed, C.; Thieberger, P.

    2010-09-12

    The US Department of Energy Facility for Rare Isotope Beams (FRIB) at Michigan State University includes a heavy ion superconducting linac capable of accelerating all ions up to uranium with energies higher than 200 MeV/u and beam power up to 400 kW. To achieve these goals with present ion source performance it is necessary to accelerate simultaneously two charge states of uranium from the ion source in the first section of the linac. At an energy of approximately 16.5 MeV/u it is planned to strip the uranium beam to reduce the voltage needed in the rest of the linac to achieve the final energy. Up to five different charge states are planned to be accelerated simultaneously after the stripper. The design of the stripper is a challenging problem due to the high power deposited (approximately 0.7 kW) in the stripper media by the beam in a small spot. To assure success of the project we have established a research and development program that includes several options: carbon or diamond foils, liquid lithium films, gas strippers and plasma strippers. We present in this paper the status of the different options.

  18. Economic considerations of commercial tokamak options

    Energy Technology Data Exchange (ETDEWEB)

    Dabiri, A.E.

    1986-05-01

    Systems studies have been performed to assess commercial tokamak options. Superconducting, as well as normal, magnet coils in either first or second stability regimes have been considered. A spherical torus (ST), as well as an elongated tokamak (ET), is included in the study. The cost of electricity (COE) is selected as the figure of merit, and beta and first-wall neutron wall loads are selected to represent the physics and technology characteristics of various options. The results indicate that an economical optimum for tokamaks is predicted to require a beta of around 10%, as predicted to be achieved in the second stability regime, and a wall load of about 5 MW/m/sup 2/, which is assumed to be optimum technologically. This tokamak is expected to be competitive with fission plants if efficient, noninductive current drive is developed. However, if this regime cannot be attained, all other tokamaks operating in the first stability regime, including spherical torus and elongated tokamak and assuming a limiting wall load of 5 MW/m/sup 2/, will compete with one another with a COE of about 50 mill/kWh. This 40% higher than the COE for the optimum reactor in the second stability regime with fast-wave current drive. The above conclusions pertain to a 1200-MW(e) net electric power plant. A comparison was also made between ST, ET, and superconducting magnets in the second stability regime with fast-wave current drive at 600 MW(e).

  19. Isokinetic muscle assessment after treatment of pectoralis major muscle rupture using surgical or non-surgical procedures

    Directory of Open Access Journals (Sweden)

    Anna Maria Fleury

    2011-01-01

    Full Text Available INTRODUCTION: Rupture of the pectoralis major muscle appears to be increasing in athletes. However, the optimal treatment strategy has not yet been established. OBJECTIVES: To compare the isokinetic shoulder performance after surgical treatment to that after non-surgical treatment for pectoralis major muscle rupture. METHODS: We assessed 33 pectoralis major muscle ruptures (18 treated non-surgically and 15 treated surgically. Horizontal abduction and adduction as well as external and internal rotation at 60 and 120 degrees/s were tested in both upper limbs. Peak torque, total work, contralateral deficiency, and the peak torque agonist-to-antagonist ratio were measured. RESULTS: Contralateral muscular deficiency did not differ between the surgical and non-surgical treatment modalities. However, the surgical group presented twice the number of athletes with clinically acceptable contralateral deficiency (<20% for internal rotators compared to the non-surgical group. The peak torque ratio between the external and internal rotator muscles revealed a similar deficit of the external rotation in both groups and on both sides (surgical, 61.60% and 57.80% and non-surgical, 62.06% and 54.06%, for the dominant and non-dominant sides, respectively. The peak torque ratio revealed that the horizontal adduction muscles on the injured side showed similar weakness in both groups (surgical, 86.27%; non-surgical, 98.61%. CONCLUSIONS: This study included the largest single series of athletes reported to date for this type of injury. A comparative analysis of muscular strength and balance showed no differences between the treatment modalities for pectoralis major muscle rupture. However, the number of significant clinical deficiencies was lower in the surgical group than in the non-surgical group, and both treatment modalities require greater attention to the rehabilitation process, especially for the recovery of muscle strength and balance.

  20. Current and future options for the management of phantom-limb pain

    Directory of Open Access Journals (Sweden)

    Knotkova H

    2012-03-01

    Full Text Available Helena Knotkova1,2, Ricardo Cruciani1–3, Volker M Tronnier4, Dirk Rasche41Department of Pain Medicine and Palliative Care, Research Division, Institute for Non-invasive Brain Stimulation, Beth Israel Medical Center, New York, NY, USA; 2Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, USA; 3Department of Anesthesiology, Albert Einstein College of Medicine, Bronx, NY, USA; 4Department of Neurosurgery, University of Lübeck, GermanyAbstract: Phantom-limb pain (PLP belongs among difficult-to-treat chronic pain syndromes. Treatment options for PLP are to a large degree implicated by the level of understanding the mechanisms and nature of PLP. Research and clinical findings acknowledge the neuropathic nature of PLP and also suggest that both peripheral as well as central mechanisms, including neuroplastic changes in central nervous system, can contribute to PLP. Neuroimaging studies in PLP have indicated a relation between PLP and the neuroplastic changes. Further, it has been shown that the pathological neuroplastic changes could be reverted, and there is a parallel between an improvement (reversal of the neuroplastic changes in PLP and pain relief. These findings facilitated explorations of novel neuromodulatory treatment strategies, adding to the variety of treatment approaches in PLP. Overall, available treatment options in PLP include pharmacological treatment, supportive non-pharmacological non-invasive strategies (eg, neuromodulation using transcranial magnetic stimulation, visual feedback therapy, or motor imagery; peripheral transcutaneous electrical nerve stimulation, physical therapy, reflexology, or various psychotherapeutic approaches, and invasive treatment strategies (eg, surgical destructive procedures, nerve blocks, or invasive neuromodulation using deep brain stimulation, motor cortex stimulation, or spinal cord stimulation. Venues of further development in PLP management include a technological and

  1. Impact of Flexibility Options on Grid Economic Carrying Capacity of Solar and Wind: Three Case Studies

    Energy Technology Data Exchange (ETDEWEB)

    Denholm, Paul [National Renewable Energy Lab. (NREL), Golden, CO (United States); Novacheck, Joshua [National Renewable Energy Lab. (NREL), Golden, CO (United States); Jorgenson, Jennie [National Renewable Energy Lab. (NREL), Golden, CO (United States); O' Connell, Matthew [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2016-12-01

    In this study, we attempt to quantify the benefits of various options of grid flexibility by measuring their impact on two measures: economic carrying capacity and system costs. Flexibility can increase ECC and reduce overall system costs. In some cases, options that provide a limited increase in ECC can provide significant operational savings, thus demonstrating the need to evaluate flexibility options using multiple metrics. The value of flexibility options varies regionally due to different generation mixes and types of renewables. The more rapid decline in PV value compared to wind makes PV more dependent on adding flexibility options, including transmission and energy storage.

  2. Impact of Flexibility Options on Grid Economic Carrying Capacity of Solar and Wind: Three Case Studies

    Energy Technology Data Exchange (ETDEWEB)

    Denholm, Paul [National Renewable Energy Lab. (NREL), Golden, CO (United States); Novacheck, Joshua [National Renewable Energy Lab. (NREL), Golden, CO (United States); Jorgenson, Jennie [National Renewable Energy Lab. (NREL), Golden, CO (United States); O' Connell, Matthew [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2016-12-01

    In this study, we attempt to quantify the benefits of various options of grid flexibility by measuring their impact on two measures: economic carrying capacity and system costs. Flexibility can increase economic carrying capacity and reduce overall system costs. In some cases, options that provide a limited increase in economic carrying capacity can provide significant operational savings, thus demonstrating the need to evaluate flexibility options using multiple metrics. The value of flexibility options varies regionally due to different generation mixes and types of renewables. The more rapid decline in PV value compared to wind makes PV more dependent on adding flexibility options, including transmission and energy storage.

  3. 78 FR 17868 - Noncompensatory Partnership Options; Correction

    Science.gov (United States)

    2013-03-25

    ... example, assume that PRS is a partnership for Federal tax purposes, none of the noncompensatory option... premium of $10x, PRS issues a noncompensatory option to A to acquire a 10 percent interest in PRS...

  4. Urban Options Solar Greenhouse Demonstration Project. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Cipparone, L.

    1980-10-15

    The following are included: the design process, construction, thermal performance, horticulture, educational activities, and future plans. Included in appendices are: greenhouse blueprints, insulating curtain details, workshop schedules, sample data forms, summary of performance calculations on the Urban Options Solar Greenhouse, data on vegetable production, publications, news articles on th Solar Greenhouse Project, and the financial statement. (MHR)

  5. SURGICAL PROCEDURES IN SUSHRUTA SAMHITA

    Directory of Open Access Journals (Sweden)

    Singh R.K

    2011-05-01

    Full Text Available The Sushruta Samhita is an Ayurvedic text, by the legendary Sushruta, foundational to Ayurvedic medicine (Indian traditional medicine, with innovative chapters mainly on surgery. There is a general impression that Sushruta Samhita is only an ancient Indian Ayurvedic text book of surgery. Sushruta Samhita contains 184 chapters and description of 1120 illnesses, 700 medicinal plants, a detailed study on anatomy, 64 preparations from mineral sources and 57 preparations based on animal sources. It still retains the land mark position in the field of surgical texts. In addition to his worldwide known work of historical significance on plastic surgery, he also made similar unique contributions on numerous aspects of medicine, such as fracture and dislocations, urinary stones, skin diseases including leprosy, Pancha Karma (Purification procedures, toxicology, pediatrics, eye diseases, psychiatry, obstetrics and gynaecology, etc. A very limited conceptual work has been performed on the selected chapters of Sushruta Samhita. Therefore a review conceptual study has been carried out on the various surgical concepts of Sushruta Samhita. Outcome of this study shows, Sushruta Samhita is written in the aphorism form and the techniques described in it are eminently in line with technical abilities of the times. It is need of the hour to explore the hidden truth by decoding the versions of the texts.

  6. [Arterial and portal venous complications after HPB surgical procedures: Interdisciplinary management].

    Science.gov (United States)

    Arend, J; Schütte, K; Peglow, S; Däberitz, T; Popp, F; Benedix, F; Pech, M; Wolff, S; Bruns, C

    2015-06-01

    The surgical treatment of hepatopancreatobiliary (HPB) diseases requires complex operative procedures. Within the last decades the morbidity (36-50 %) and mortality (surgery shows an increased rate of complications. Postoperative bleeding has a major effect on the outcome and the incidence is 6.7 % after pancreatic surgery and 3.2 % after hepatobiliary surgery. The major causes of early postoperative hemorrhage are related to technical difficulties in surgery whereas late onset postoperative hemorrhage is linked to anastomosis insufficiency, formation of fistulae or abscesses due to vascular arrosion or formation of pseudoaneurysms. In many cases, delayed hemorrhage is preceded by a self-limiting sentinel bleeding. The treatment is dependent on the point in time, location and severity of the hemorrhage. The majority of early postoperative hemorrhages require surgical treatment. Late onset hemorrhage in hemodynamically stable patients is preferably treated by radiological interventions. After interventional hemostatic therapy 8.2 % of patients require secondary procedures. In the case of hemodynamic instability or development of sepsis, a relaparotomy is necessary. The treatment concept includes surgical or interventional remediation of the underlying cause of the hemorrhage. Other causes of postoperative morbidity and mortality are arterial and portal venous stenosis and thrombosis. Following liver resection, thrombosis of the portal vein occurs in 8.5-9.1 % and in 11.6 % following pancreatic resection with vascular involvement. Interventional surgical procedures or conservative treatment are suitable therapeutic options depending on the time of diagnosis and clinical symptoms. The risk of morbidity and mortality after HPB surgery can be reduced only in close interdisciplinary cooperation, which is particularly true for vascular complications.

  7. 肝癌手术治疗进展%Progress in surgical procedures of hepatocellular carcinoma

    Institute of Scientific and Technical Information of China (English)

    樊嘉; 史颖弘

    2009-01-01

    The incidence of hepatocellular carcinoma (HCC) has increased worldwide over the past two decades. Surgical resection and liver transplantation have been demonstrated as potentially curative treatment options, which could be considered in 30% -40% of HCC patients. Recent advancements of surgical treatment have focused not only on the surgical techpiques, but also the hepatic functional reserve evaluation, resectability assessment and the effects of biological characteristics of tumor on prognosis. There is no single variable to evaluate the hepatic functional reserve accurately. Combined Child-Pugh classification, ICGI5, portal vein pressure detection and remanent liver volume measurement are required prior to liver resection. The 5-year survival rate after liver resection for HCC is about 50%. The results are acceptable for some selected patients that underwent tumor resection with thrombectomy, including HCC with portal vein tumor thrombus or bile duct thrombosis. The choice of local resection or regular hepatectomy is still controversial although the former is commonly performed to treat HCC with cirrhosis, and the latter is applied to HCC patients without liver cirrhosis. The results of liver transplanta-tion for HCC are better than liver resection, and the Milan criteria is generally accepted. Any attempts to expand the selection criteria should be cautious because of organ shortage. Salvage transplantation for intrabepatic recurrence after liver resection may be a good choice in some resectable HCC. The recurrence and metastasis after surgical treatment are the main obstacles to achieve better results. Identification of predictive factors could be helpful to develop prevention strategies. Due to the importance of biological characteristics in tumor recurrence and metastasis, a molecular classification to predict prognosis of HCC patients will lead to a more personalized medicine. Targeting key molecules of biological pathways could optimize the therapeutic

  8. Strategic planning ensures surgical success in cases of proliferative vitreoretinopathy.

    Science.gov (United States)

    Lakhanpal, R Ross; Hariprasad, Seenu M

    2015-02-01

    For this Practical Retina column, Dr. Ross Lakhanpal from Baltimore was asked to comment on the current state of thinking and management options for proliferative vitreoretinopathy (PVR) after retinal detachment (RD) surgery.We are all aware that PVR continues to be an important cause of recurrent RD after successful repair. This feared complication has been reported to occur in up to 8% of patients after undergoing RD repair. Despite the historic progress made in managing various vitreoretinal diseases over the past decade, most retina specialists will agree that an unmet need remains in this landscape. Fortunately, advances in various surgical technologies such as instrumentation, lighting, and visualization have improved the outcomes after PVR management.Dr. Lakhanpal discusses causes of PVR, management goals, surgical techniques, and pearls to avoid complications after managing PVR. His experience working in an urban tertiary surgical retina practice enables him to offer insights that will be highly valued by our community.

  9. Contemporary surgical management of rectovaginal fistula in Crohn's disease.

    Science.gov (United States)

    Valente, Michael A; Hull, Tracy L

    2014-11-15

    Rectovaginal fistula is a disastrous complication of Crohn's disease (CD) that is exceedingly difficult to treat. It is a disabling condition that negatively impacts a women's quality of life. Successful management is possible only after accurate and complete assessment of the entire gastrointestinal tract has been performed. Current treatment algorithms range from observation to medical management to the need for surgical intervention. A wide variety of success rates have been reported for all management options. The choice of surgical repair methods depends on various fistula and patient characteristics. Before treatment is undertaken, establishing reasonable goals and expectations of therapy is essential for both the patient and surgeon. This article aims to highlight the various surgical techniques and their outcomes for repair of CD associated rectovaginal fistula.

  10. Advanced Demonstration and Test Reactor Options Study

    Energy Technology Data Exchange (ETDEWEB)

    Petti, David Andrew [Idaho National Lab. (INL), Idaho Falls, ID (United States); Hill, R. [Argonne National Lab. (ANL), Argonne, IL (United States); Gehin, J. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Gougar, Hans David [Idaho National Lab. (INL), Idaho Falls, ID (United States); Strydom, Gerhard [Idaho National Lab. (INL), Idaho Falls, ID (United States); Heidet, F. [Argonne National Lab. (ANL), Argonne, IL (United States); Kinsey, J. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Grandy, Christopher [Argonne National Lab. (ANL), Argonne, IL (United States); Qualls, A. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Brown, Nicholas [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Powers, J. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Hoffman, E. [Argonne National Lab. (ANL), Argonne, IL (United States); Croson, D. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2017-01-01

    Global efforts to address climate change will require large-scale decarbonization of energy production in the United States and elsewhere. Nuclear power already provides 20% of electricity production in the United States (U.S.) and is increasing in countries undergoing rapid growth around the world. Because reliable, grid-stabilizing, low emission electricity generation, energy security, and energy resource diversity will be increasingly valued, nuclear power’s share of electricity production has a potential to grow. In addition, there are non electricity applications (e.g., process heat, desalination, hydrogen production) that could be better served by advanced nuclear systems. Thus, the timely development, demonstration, and commercialization of advanced nuclear reactors could diversify the nuclear technologies available and offer attractive technology options to expand the impact of nuclear energy for electricity generation and non-electricity missions. The purpose of this planning study is to provide transparent and defensible technology options for a test and/or demonstration reactor(s) to be built to support public policy, innovation and long term commercialization within the context of the Department of Energy’s (DOE’s) broader commitment to pursuing an “all of the above” clean energy strategy and associated time lines. This planning study includes identification of the key features and timing needed for advanced test or demonstration reactors to support research, development, and technology demonstration leading to the commercialization of power plants built upon these advanced reactor platforms. This planning study is consistent with the Congressional language contained within the fiscal year 2015 appropriation that directed the DOE to conduct a planning study to evaluate “advanced reactor technology options, capabilities, and requirements within the context of national needs and public policy to support innovation in nuclear energy

  11. New Frontiers in Surgical Innovation.

    Science.gov (United States)

    Jackson, Ryan S; Schmalbach, Cecelia E

    2017-08-01

    It is an exciting time for head and neck surgical innovation with numerous advances in the perioperative planning and intraoperative management of patients with cancer, trauma patients, and individuals with congenital defects. The broad and rapidly changing realm of head and neck surgical innovation precludes a comprehensive summary. This article highlights some of the most important innovations from surgical planning with sentinel node biopsy and three-dimensional, stereolithic modeling to intraoperative innovations, such as transoral robotic surgery and intraoperative navigation. Future surgical innovations, such as intraoperative optical imaging of surgical margins, are also highlighted. Copyright © 2017 Elsevier Inc. All rights reserved.

  12. Long-term surgical outcomes of adenotonsillectomy for PFAPA syndrome.

    Science.gov (United States)

    Licameli, Greg; Lawton, Maranda; Kenna, Margaret; Dedeoglu, Fatma

    2012-10-01

    To evaluate the long-term efficacy of adenotonsillectomy in the treatment of pediatric patients with PFAPA (periodic fever, aphthous stomatitis, pharyngitis, and cervical adenitis) syndrome. Prospective case series. Tertiary care pediatric hospital. Pediatric patients meeting the criteria for PFAPA syndrome. Tonsillectomy with adenoidectomy. Resolution of PFAPA symptoms. A total of 124 patients (75 boys and 49 girls) underwent adenotonsillectomy from 2004 to 2011 for relief of cyclical fevers due to PFAPA syndrome. Of the 124 patients, 22 did not meet criteria for inclusion in this study because (1) they had less than 6 months of follow-up after surgery or (2) they were unavailable for follow-up; therefore, 102 patients were included in the study. The mean age at the time of surgery was 58 months (range, 18-179 months). The average duration of follow-up after adenotonsillectomy was 43 months (range, 6-98 months). Of 102 patients, 99 had complete resolution of their symptoms immediately after surgery. Our findings showed complete resolution of symptoms in 99 of 102 patients with PFAPA syndrome who were treated surgically. Patients who meet the clinical criteria for PFAPA syndrome should be offered tonsillectomy and adenoidectomy as part of their treatment options.

  13. The International Surgical Trial in Intracerebral Haemorrhage (ISTICH).

    Science.gov (United States)

    Mendelow, A D

    2003-01-01

    At the XIth International Brain Oedema Symposium we reported that 208 patients had been randomized in this trial from 65 centres. At the time of submission of this manuscript we have randomized 985 patients from 107 centres including Japan. The trial will continue randomising patients until the end of February 2003. The objective is to determine whether "Early Surgical Intervention" or "Initial Conservative Treatment" is the best option in patients with spontaneous supratentorial Intracerebral haemorrhage (ICH). Patients with trauma, tumours, aneurysms and angiographically proven arteriovenous malformations are excluded. Ascertainment logs from the various centres have revealed substantial variation in the rate of operation for ICH from 2% in Hungary to 90% in Lithuania. The results will remain blinded until all 6 month follow-up information has been obtained. It is anticipated that these results will therefore be known towards the end of 2003. The pooled results have shown that patients with larger Haematomas and depressed consciousness are more likely to end up with a worse outcome.

  14. Surgical Management of Ascending Aortic Aneurysm and Its Complications

    Directory of Open Access Journals (Sweden)

    Sisira Sran

    2014-01-01

    Full Text Available Ascending aortic aneurysms involving the proximal aortic arch, arising anywhere from the aortic valve to the innominate artery, represent various problems in which open surgery is generally required. Surgical options include excision of the aortic pathology or wrapping the aneurysm shell with an aortic Dacron graft. Intervention using the latter method can lead to extravasation of blood along the suture lines resulting in continuous bleeding within the periprosthetic space. The Cabrol technique was developed as a method for decompression of postoperative leaks by the formation of a conduit system from the periprosthetic space to the right atrium. The coronary ostia are anastomosed to a second graft in an end-to-end fashion, which is then anastomosed to the ascending aortic conduit side to side. The native aorta is then sewn around the prosthesis, hereby creating a shunt to drain anastomotic leakage. This shunt reduces postsurgical risk of pseudoaneurysm formation and normally closes a few days following surgery. We discuss the case of a patient who underwent Cabrol’s variation and six months later was demonstrated to have a patent shunt.

  15. Surgical palliation of gastric outlet obstruction in advanced malignancy

    Science.gov (United States)

    Potz, Brittany A; Miner, Thomas J

    2016-01-01

    Gastric outlet obstruction (GOO) is a common problem associated with advanced malignancies of the upper gastrointestinal tract. Palliative treatment of patients’ symptoms who present with GOO is an important aspect of their care. Surgical palliation of malignancy is defined as a procedure performed with the intention of relieving symptoms caused by an advanced malignancy or improving quality of life. Palliative treatment for GOO includes operative (open and laparoscopic gastrojejunostomy) and non-operative (endoscopic stenting) options. The performance status and medical condition of the patient, the extent of the cancer, the patients prognosis, the availability of a curative procedure, the natural history of symptoms of the disease (primary and secondary), the durability of the procedure, and the quality of life and life expectancy of the patient should always be considered when choosing treatment for any patient with advanced malignancy. Gastrojejunostomy appears to be associated with better long term symptom relief while stenting appears to be associated with lower immediate procedure related morbidity. PMID:27648158

  16. Virtual reality training for surgical trainees in laparoscopic surgery.

    Science.gov (United States)

    Nagendran, Myura; Gurusamy, Kurinchi Selvan; Aggarwal, Rajesh; Loizidou, Marilena; Davidson, Brian R

    2013-08-27

    Standard surgical training has traditionally been one of apprenticeship, where the surgical trainee learns to perform surgery under the supervision of a trained surgeon. This is time-consuming, costly, and of variable effectiveness. Training using a virtual reality simulator is an option to supplement standard training. Virtual reality training improves the technical skills of surgical trainees such as decreased time for suturing and improved accuracy. The clinical impact of virtual reality training is not known. To assess the benefits (increased surgical proficiency and improved patient outcomes) and harms (potentially worse patient outcomes) of supplementary virtual reality training of surgical trainees with limited laparoscopic experience. We searched the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library, MEDLINE, EMBASE and Science Citation Index Expanded until July 2012. We included all randomised clinical trials comparing virtual reality training versus other forms of training including box-trainer training, no training, or standard laparoscopic training in surgical trainees with little laparoscopic experience. We also planned to include trials comparing different methods of virtual reality training. We included only trials that assessed the outcomes in people undergoing laparoscopic surgery. Two authors independently identified trials and collected data. We analysed the data with both the fixed-effect and the random-effects models using Review Manager 5 analysis. For each outcome we calculated the mean difference (MD) or standardised mean difference (SMD) with 95% confidence intervals based on intention-to-treat analysis. We included eight trials covering 109 surgical trainees with limited laparoscopic experience. Of the eight trials, six compared virtual reality versus no supplementary training. One trial compared virtual reality training versus box-trainer training and versus no supplementary training, and one trial compared

  17. Cholecystectomy: Surgical Removal of the Gallbladder

    Science.gov (United States)

    ... including complete blood count ● ●Liver function tests ● ●Coagulation profile ● ●Abdominal ultrasound is the most common study for ... Death Open 0.8% Laparoscopic 0.1% Your surgical team will review for possible ... to nursing or rehabilitation facility Open 5.4% Laparoscopic 0. ...

  18. The Surgical Scrub. Learning Activity Package.

    Science.gov (United States)

    Runge, Lillian

    This learning activity package on the surgical scrub is one of a series of 12 titles developed for use in health occupations education programs. Materials in the package include objectives, a list of materials needed, a list of definitions, information sheets, reviews (self evaluations) of portions of the content, and answers to reviews. These…

  19. Medical-Surgical II. Teacher Edition.

    Science.gov (United States)

    Oklahoma State Dept. of Vocational and Technical Education, Stillwater. Curriculum and Instructional Materials Center.

    This publication is designed to provide students with the knowledge they need to pursue a career in medical-surgical nursing. Fifteen units are provided. Each instructional unit includes some or all of the basic components of a unit of instruction: performance objectives, suggested activities for the teacher, information sheets, job sheets,…

  20. Medical-Surgical I. Teacher Edition.

    Science.gov (United States)

    Oklahoma State Dept. of Vocational and Technical Education, Stillwater. Curriculum and Instructional Materials Center.

    This publication is designed to provide students with the knowledge they need to pursue a career in medical-surgical nursing. Eight units are provided. Each instructional unit includes some or all of the basic components of a unit of instruction: performance objectives, suggested activities for the teacher, information sheets, job sheets, written…

  1. Option trading and individual investor performance

    NARCIS (Netherlands)

    R. Bauer; M. Cosemans; P. Eichholtz

    2009-01-01

    This paper examines the impact of option trading on individual investor performance. The results show that most investors incur substantial losses on their option investments, which are much larger than the losses from equity trading. We attribute the detrimental impact of option trading on investor

  2. Option Strike Price and Managerial Investment Decisions

    Institute of Scientific and Technical Information of China (English)

    刘鸿雁; 张维

    2003-01-01

    The manager′s investment decisions is modeled when the manager is risk-averse and has stock options as compensation. It is found that the strike price of options is crucial to the investment incentives of managers, and that the correct value, or interval of values, of managerial stock option strike price can bring stockholder and manager interests in agreement.

  3. Option trading and individual investor performance

    NARCIS (Netherlands)

    Bauer, R.; Cosemans, M.; Eichholtz, P.

    2009-01-01

    This paper examines the impact of option trading on individual investor performance. The results show that most investors incur substantial losses on their option investments, which are much larger than the losses from equity trading. We attribute the detrimental impact of option trading on investor

  4. Option Fixation: A Cognitive Contributor to Overconfidence

    Science.gov (United States)

    Sieck, Winston R.; Merkle, Edgar C.; Van Zandt, Trisha

    2007-01-01

    The ASC model of choice and confidence in general knowledge proposes that respondents first Assess the familiarity of presented options, and then use the high-familiarity option as a retrieval cue to Search memory for the purposes of Constructing an explanation about why that high-familiarity option is true. The ASC process implies that…

  5. 24 CFR 221.775 - Option period.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Option period. 221.775 Section 221.775 Housing and Urban Development Regulations Relating to Housing and Urban Development (Continued... § 221.775 Option period. The mortgagee may exercise its option to assign within one year following the...

  6. Equity Portfolio Management Using Option Price Information

    DEFF Research Database (Denmark)

    Christoffersen, Peter; Pan, Xuhui (Nick)

    We survey the recent academic literature that uses option-implied information to construct equity portfolios. Studies show that equity managers can earn a positive alpha by using information in individual equity options, by using stocks' exposure to information in market index options, and by usi...

  7. Analytic American Option Pricing and Applications

    NARCIS (Netherlands)

    Sbuelz, A.

    2003-01-01

    I use a convenient value breakdown in order to obtain analytic solutions for finitematurity American option prices.Such a barrier-option-based breakdown yields an analytic lower bound for the American option price, which is as price-tight as the Barone-Adesi and Whaley (1987) analytic value proxy fo

  8. Margin Requirements and Equity Option Returns

    DEFF Research Database (Denmark)

    Hitzemann, Steffen; Hofmann, Michael; Uhrig-Homburg, Marliese

    In equity option markets, traders face margin requirements both for the options themselves and for hedging-related positions in the underlying stock market. We show that these requirements carry a significant margin premium in the cross-section of equity option returns. The sign of the margin pre...

  9. Ureteroscopy for management of stone disease: an up to date on surgical technique and disposable devices.

    Science.gov (United States)

    Torricelli, Fabio C; Marchini, Giovanni S; Pedro, Renato N; Monga, Manoj

    2016-12-01

    The surgical management of urinary stone disease developed substantially over the past decades and advanced minimally invasive techniques have been successfully introduced into clinical practice. Retrograde ureteroscopy and ureterorrenoscopy have become the first-line option for treatment of ureteral and renal stones worldwide with high success rates allied with a low morbidity profile. In this review, we will discuss some key points in ureteroscopy for stone disease, such as the access to upper urinary tract, including balloon and catheter dilation; how to choose and use some disposable devices (hydrophilic versus PTFE guide wires, ureteral catheters, and laser fiber setting); and lastly present and compare different techniques for kidney or ureteral stone treatment (dusting versus basketing).

  10. Corneal-Based Surgical Presbyopic Therapies and Their Application in Pseudophakic Patients

    Directory of Open Access Journals (Sweden)

    Grace L. Paley

    2016-01-01

    Full Text Available Purpose. The purpose of this review is to provide a summary of laser refractive surgery and corneal inlay approaches to treat presbyopia in patients after cataract surgery. Summary. The presbyopic population is growing rapidly along with increasing demands for spectacle independence. This review will focus on the corneal-based surgical options to address presbyopia including various types of corneal intrastromal inlays and laser ablation techniques to generate either a multifocal cornea (“PresbyLASIK” or monovision. The natural history of presbyopia develops prior to cataracts, and these presbyopic surgeries have been largely studied in phakic patients. Nevertheless, pseudophakic patients may also undergo these presbyopia-compensating procedures for enhanced quality of life. This review examines the published reports that apply these technologies to patients after cataract surgery and discusses unique considerations for this population.

  11. Therapeutic options for peritoneal metastasis arising from colorectal cancer

    Institute of Scientific and Technical Information of China (English)

    Gabriel Glockzin; Hans J Schlitt; Pompiliu Piso

    2016-01-01

    Peritoneal metastasis is a common sign of advanced tumor stage, tumor progression or tumor recurrence in patients with colorectal cancer. Due to the improvement of systemic chemotherapy, the development of targeted therapy and the introduction of additive treatment options such as cytoreductive surgery(CRS) and hyperthermic intraperitoneal chemotherapy(HIPEC), the therapeutic approach to peritoneal metastatic colorectal cancer(pm CRC) has changed over recent decades, and patient survival has improved. Moreover, in contrast to palliative systemic chemotherapy or best supportive care, the inclusion of CRS and HIPEC as inherent components of a multidisciplinary treatment regimen provides a therapeutic approach with curative intent. Although CRS and HIPEC are increasingly accepted as the standard of care for selected patients and have become part of numerous national and international guidelines, the individual role, optimal timing and ideal sequence of the different systemic, local and surgical treatment options remains a matter of debate. Ongoing and future randomized controlled clinical trials may help clarify the impact of the different components, allow for further improvement of patient selection and support the standar-dization of oncologic treatment regimens for pm CRC. The addition of further therapeutic options such as neo-adjuvant intraperitoneal chemotherapy or pressurized intraperitoneal aerosol chemotherapy, should be investig-ated to optimize therapeutic regimens and further improve the oncological outcome.

  12. A clarity clinic for surgical writing.

    Science.gov (United States)

    Derish, Pamela; Eastwood, Susan

    2008-06-01

    Although writing and publishing are key to career development and academic success for surgeons, learning the skills needed to write publishable research reports is an often neglected aspect of surgical training. This report distills several lessons from scientific writing courses for surgeons taught at the University of California, San Francisco, to give a wider audience of academic surgeons tools they can use to write scientific prose more clearly. Drawing extensively on real examples of surgical writing, we cover techniques that are indispensable for achieving clarity, including choosing words carefully, designing well-constructed sentences, building structured paragraphs, and displaying your thinking clearly by using topic sentences and transitions.

  13. Surgical management of traumatic brain injury

    DEFF Research Database (Denmark)

    Hartings, Jed A; Vidgeon, Steven; Strong, Anthony J;

    2014-01-01

    OBJECT: Mass lesions from traumatic brain injury (TBI) often require surgical evacuation as a life-saving measure and to improve outcomes, but optimal timing and surgical technique, including decompressive craniectomy, have not been fully defined. The authors compared neurosurgical approaches...... enrolled in the Co-Operative Studies on Brain Injury Depolarizations (COSBID) at King's College Hospital (KCH, n = 27) and Virginia Commonwealth University (VCU, n = 24) from July 2004 to March 2010. Subdural electrode strips were placed at the time of surgery for subsequent electrocorticographic...

  14. Current and emerging options for taxol production.

    Science.gov (United States)

    Li, Yi; Zhang, Guojian; Pfeifer, Blaine A

    2015-01-01

    Paclitaxel (trademark "Taxol") is a plant-derived isoprenoid natural product that exhibits potent anticancer activity. Taxol was originally isolated from the Pacific yew tree in 1967 and triggered an intense scientific and engineering venture to provide the compound reliably to cancer patients. The choices available for production include synthetic and biosynthetic routes (and combinations thereof). This chapter focuses on the currently utilized and emerging biosynthetic options for Taxol production. A particular emphasis is placed on the biosynthetic production hosts including macroscopic and unicellular plant species and more recent attempts to elucidate, transfer, and reconstitute the Taxol pathway within technically advanced microbial hosts. In so doing, we provide the reader with relevant background related to Taxol and more general information related to producing valuable, but structurally complex, natural products through biosynthetic strategies.

  15. [Treatment options for age-related infertility].

    Science.gov (United States)

    Belaisch-Allart, Joëlle

    2010-06-20

    There has been a consistent trend towards delayed childbearing in most Western countries. Treatment options for age-related infertility includes controlled ovarian hyperstimulation with intrauterine insemination and in vitro fertilization (IVF). A sharp decline in pregnancy rate with advancing female age is noted with assisted reproductive technologies (ART) including IVF. Evaluation and treatment of infertility should not be delayed in women 35 years and older. No treatment other than oocyte donation has been shown to be effective for women over 40 and for those with compromised ovarian reserve, but its pratice is not easy in France hence the procreative tourism. As an increasing number of couples choose to postpone childbearing, they should be informed that maternal age is an important risk factor for failure to conceive.

  16. Monte Carlo methods for pricing financial options

    Indian Academy of Sciences (India)

    N Bolia; S Juneja

    2005-04-01

    Pricing financial options is amongst the most important and challenging problems in the modern financial industry. Except in the simplest cases, the prices of options do not have a simple closed form solution and efficient computational methods are needed to determine them. Monte Carlo methods have increasingly become a popular computational tool to price complex financial options, especially when the underlying space of assets has a large dimensionality, as the performance of other numerical methods typically suffer from the ‘curse of dimensionality’. However, even Monte-Carlo techniques can be quite slow as the problem-size increases, motivating research in variance reduction techniques to increase the efficiency of the simulations. In this paper, we review some of the popular variance reduction techniques and their application to pricing options. We particularly focus on the recent Monte-Carlo techniques proposed to tackle the difficult problem of pricing American options. These include: regression-based methods, random tree methods and stochastic mesh methods. Further, we show how importance sampling, a popular variance reduction technique, may be combined with these methods to enhance their effectiveness. We also briefly review the evolving options market in India.

  17. 78 FR 25505 - Self-Regulatory Organizations; C2 Options Exchange, Incorporated; Notice of Filing and Immediate...

    Science.gov (United States)

    2013-05-01

    ... standard equity and ETF options, including exercise style. Accordingly, the mini-option filing contained a..., and all written communications relating to the proposed rule change between the Commission and...

  18. Non-surgical management of hepatocellular carcinoma; Prise en charge non chirurgicale du carcinome hepatocellulaire

    Energy Technology Data Exchange (ETDEWEB)

    Merle, P. [Service d' hepato-gastroenterologie, hopital de l' Hotel-Dieu, 69 - Lyon (France); Inserm U871 -Oncogenese hepatique et hepatites virales-, 69 - Lyon (France); IFR62 Lyon-Est, universite Lyon 1, 69 - Lyon (France); Mornex, F. [Departement de radiotherapie-oncologie, centre hospitalier Lyon-Sud, 69 - Pierre-Benite (France)

    2010-10-15

    Most of patients with hepatocellular carcinoma (HCC) cannot benefit from surgical therapies. Among non-surgical options, only radiofrequency can challenge surgery for small size tumours. Conformal radiotherapy is likely highly efficient on solitary tumours, but controlled studies are warranted to conclude. Other options are purely palliative. Trans-arterial hepatic chemo-embolization is the goal-standard for multifocal hepatocellular carcinoma and Sorafenib for hepatocellular carcinoma with portal vein invasion, leading to modest but significant benefit on survival rates. Yttrium-90 radio-embolization is under evaluation through controlled studies, and could be of major interest for multifocal hepatocellular carcinoma with or without portal venous invasion. (authors)

  19. The application of digital surgical diagnosis and treatment technology: a promising strategy for surgical reconstruction of craniomaxillofacial defect and deformity.

    Science.gov (United States)

    Wang, Li-ya; Du, Hong-ming; Zhang, Gang; Tang, Wei; Liu, Lei; Jing, Wei; Long, Jie

    2011-12-01

    The craniomaxillofacial defect and deformity always leads to serious dysfunction in mastication and facial contour damage, significantly reducing patients' quality of life. However, surgical reconstruction of a craniomaxillofacial hard tissue defect or deformity is extremely complex and often does not result in desired facial morphology. Improving the result for patients with craniomaxillofacial defect and deformity remains a challenge for surgeons. Using digital technology for surgical diagnosis and treatment may help solve this problem. Computer-assisted surgical technology and surgical navigation technology are included in the accurate digital diagnosis and treatment system we propose. These technologies will increase the accuracy of the design of the operation plan. In addition, the intraoperative real-time navigating location system controlling the robotic arm or advanced intelligent robot will provide accurate, individualized surgical treatment for patients. Here we propose the hypothesis that a digital surgical diagnosis and treatment technology may provide a new approach for precise surgical reconstruction of complicated craniomaxillofacial defect and deformity. Our hypothesis involves modern digital surgery, a three-dimensional navigation surgery system and modern digital imaging technology, and our key aim is to establish a technological platform for customized digital surgical design and surgical navigation for craniomaxillofacial defect and deformity. If the hypothesis is proven practical, this novel therapeutic approach could improve the result of surgical reconstruction for craniomaxillofacial defect and deformity for many patients.

  20. Analysis of surgical intervention populations using generic surgical process models.

    Science.gov (United States)

    Neumuth, Thomas; Jannin, Pierre; Schlomberg, Juliane; Meixensberger, Jürgen; Wiedemann, Peter; Burgert, Oliver

    2011-01-01

    According to differences in patient characteristics, surgical performance, or used surgical technological resources, surgical interventions have high variability. No methods for the generation and comparison of statistical 'mean' surgical procedures are available. The convenience of these models is to provide increased evidence for clinical, technical, and administrative decision-making. Based on several measurements of patient individual surgical treatments, we present a method of how to calculate a statistical 'mean' intervention model, called generic Surgical Process Model (gSPM), from a number of interventions. In a proof-of-concept study, we show how statistical 'mean' procedure courses can be computed and how differences between several of these models can be quantified. Patient individual surgical treatments of 102 cataract interventions from eye surgery were allocated to an ambulatory or inpatient sample, and the gSPMs for each of the samples were computed. Both treatment strategies are exemplary compared for the interventional phase Capsulorhexis. Statistical differences between the gSPMs of ambulatory and inpatient procedures of performance times for surgical activities and activity sequences were identified. Furthermore, the work flow that corresponds to the general recommended clinical treatment was recovered out of the individual Surgical Process Models. The computation of gSPMs is a new approach in medical engineering and medical informatics. It supports increased evidence, e.g. for the application of alternative surgical strategies, investments for surgical technology, optimization protocols, or surgical education. Furthermore, this may be applicable in more technical research fields, as well, such as the development of surgical workflow management systems for the operating room of the future.