نتایج جستجو برای: eptfe
تعداد نتایج: 347 فیلتر نتایج به سال:
OBJECTIVES Customized aortic repair (CAR) is a new concept for endovascular aortic aneurysm repair in which a non-polymerised elastomer is injected to fill the aneurysm sac around a balloon catheter. Amongst other variables, the thrombogenicity of the elastomer should be tested, before further clinical experiments can take place. The aim of this human ex vivo study was to measure the thrombogen...
OBJECTIVES Small pulmonary allografts are difficult to obtain, thus we now use a tailor-made right ventricle to pulmonary artery (RV-PA) conduit for the Ross procedure, consisting of a fresh non-treated autologous pericardial (AP) patch for the posterior wall and expanded polytetrafluoroethylene (ePTFE) monocusp patch for the anterior wall. Long-term durability and RV function were assessed. ...
OBJECTIVE To describe the outcomes of dorsal augmentation rhinoplasty with expanded polytetrafluoroethylene (ePTFE) implants in Southeast Asian patients from the Philippines. METHODS Retrospective review of 1054 patients. RESULTS Of the 1054 patients, 90.61% were women and 9.39% were men. One thousand eight patients (95.64%) underwent primary rhinoplasty; 46 (4.36%), secondary or revision r...
BACKGROUND Coronary bypass graft failure as a result of acute thrombosis and intimal hyperplasia has been the major challenge in surgical procedures involving small-diameter vascular prosthesis. Coating synthetic grafts with patients' own endothelial cells has been suggested to improve the patency rate and overall success of bypass surgeries. METHODOLOGY/PRINCIPAL FINDINGS We isolated endothe...
سابقه و هدف: پرده آمنیون یکی از داربست های مناسب جهت استفاده در مهندسی بافت عروق می باشد. این مطالعه با هدف ارزیابی خون سازگاری سطح اپی تلیال پرده آمینون و مقایسه با رگ صناعی انجام شده است. مواد و روش ها: در مطالعه تجربی حاضر تاثیر سطح اپی تلیال پرده آمنیون بر روی آزمون های انعقاد خون شامل زمان پروترومبین (pt)، زمان پارشیال ترومبوپلاستین (aptt)، زمان تشکیل لخته (ct)، همولیز و تجمع پلاکتی در مقا...
Introduction We propose to investigate whether a synthetic vascular graft biomaterial coating can be used for promoting homing, attachment and differentiation of circulating endothelial progenitor cells (EPCs). The vascular graft is based on a modified ePTFE graft using a coating of the copolymer, poly(1,8-octanediol-co-citrate) (POC) to allow for electrostatic binding of stromal cell derived f...
A 2-year-old male mixed dog was referred to us for further evaluation and treatment of a 4-week-history of oliguria and abdominal distension after a surgical repair of urethral injury. To relieve the urethral stricture, we placed a self-expanding aortic stent graft extension with a partial coverage with an expanded polytetrafluoroethylene (ePTFE). After the placement of the stent, the dog prese...
A new technique for decompressive craniectomy with duraplasty was developed for cases in which brain swelling was present at dural closure. Expanded polytetrafluoroethylene (ePTFE) membrane is placed under the dura, covering the brain surface, without the use of sutures. The dura is then loosely sutured. The procedure was used in 13 patients. No leakage of cerebrospinal fluid into the epidural ...
Application of sutures between expanded polytetrafluoroethylene (ePTFE) dural substitutes and the dura mater is often frustrating in posterior fossa surgery because of the difficulty in holding the elastic graft in a deep and narrow field. To resolve this problem, we have developed a boat-shaped graft made from a triangular ePTFE sheet by pinching each angle using a suture. Formation of standin...
Background and purpose: Amniotic membrane (AM) is a proper candidate for vascular tissue engineering. The aim of this study was to evaluate the hemocompatibility of the epithelial surface of the AM. Materials and methods: In this study, we assessed the effects of the epithelial surface of the AM on blood coagulation system by measuring activated partial thromboplastin time (aPTT), prothromb...
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