نتایج جستجو برای: expanding metal stent

تعداد نتایج: 274945  

2015
Brian T. Moy John W. Birk

Endoscopic stent placement is a common primary management therapy for benign and malignant biliary strictures. However, continuous use of stents is limited by occlusion and migration. Stent technology has evolved significantly over the past two decades to reduce these problems. The purpose of this article is to review current guidelines in managing malignant and benign biliary obstructions, cur...

Journal: :Endoscopy 2012
F Liu J Y Zhu Z S Li

A significant number of self-expanding metal stents (SEMSs) placed as conservative therapy for malignant biliary obstruction will become occluded [1]. Stent occlusion can be treated endoscopically either by balloon trawling to remove the biliary sludge and debris or by inserting a polyethylene stent or a second stent through the occluded stent [2]. However, these treatments can be given only af...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده مهندسی 1393

مشکلات قلبی عروقی امروزه مشکلات زیادی را برای افرادی زیادی ایجاد کرده است. یکی از عواملی که باعث سکته قلبی می- شود گرفتگی رگ قلب می باشد که به وسیله ی ضایعاتی مانند چربی به وجود می آید. یکی از راه های مقابله با این مشکل استفاده ازاستنت ها قلبی می باشد.حال این استنت ها به دو صورتbare-metal stent وdrug-eluting stent عرضه می-شود.طریقه عملکرد این استنت ها به این صورت می باشد که وقتی در داخل رگ قرار...

2017
Xiao-Qin Liu Min Zhou Wen-Xin Shi Yi-Ying Qi Hui Liu Bin Li Hong-Wei Xu

In the report, we describe a case of refractory benign esophageal strictures from esophageal cancer after an operation for the placement of three partially covered self-expanding metal stents (SEMSs), which were all embedded in the esophageal wall. Using the stent-in-stent technique, the three embedded SEMSs were successfully removed without significant complications. To the best of our knowled...

2015
Mathilde Therese Winther Breitenbauch Anders Tøttrup

When patients present with malignant cologastric fistulas, the tumor stage is often advanced and management is only palliative. We report the case of a 75-year-old man with a symptomatic cologastric fistula arising from an advanced tumor in the transverse colon, previously stented owing to malignant obstruction. An 8-cm-long covered self-expanding metal stent (COMVI enteral colonic stent; Taewo...

2009
Salvatore Maria Antonio Campo Roberto Lorenzetti Marina de Matthaeis Cesare Hassan Angelo Zullo Paola Cerro Sergio Morini

We present an 82-year-old woman with a 3-month history of progressive dysphagia and a normal initial upper gastrointestinal endoscopy. The diagnosis of pseudoachalasia was suspected by oesophageal manometric and barium swallow studies, and confirmed by biopsies revealing an intestinal type carcinoma of the stomach at a repeated endoscopy. In view of the history of heart disease, diabetes, and o...

2015
Alberto Aiolfi Davide Bona Chiara Ceriani Matteo Porro Luigi Bonavina

BACKGROUND Endoscopic stenting is a widely used method for managing esophageal anastomotic leaks and perforations. Self-expanding metal stents (SEMSs) have proved effective in sealing these defects, with a lower rate of displacement than that of self-expanding plastic stents (SEPSs) as a result of tissue proliferation and granulation tissue ingrowth at the uncovered portion of the stent, which ...

Journal: :Cirugia espanola 2015
José Manuel Ramia Farah Adel Roberto de La Plaza Pilar Veguillas Jorge García-Parreño

1. Serra C, Baltasar A, Andreo L, Pérez N, Bou R, Bengochea M, et al. Treatment of gastric leaks with coated selfexpanding stents after sleeve gastrectomy. Obes Surg. 2007;17:866–72. 2. Casella G, Soricelli E, Rizzello M, Trentino P, Fiocca F, Fantini A, et al. Nonsurgical treatment of staple line leaks after laparoscopic sleeve gastrectomy. Obes Surg. 2009;19:821–6. 3. Salinas A, Baptista A, S...

Journal: :Gastrointestinal endoscopy 1995
S O'Brien A R Hatfield P I Craig S P Williams

Effective palliation of malignant biliary obstruction with conventional 10 or 12 French gauge straight polyethylene endoprostheses is limited by stent occlusion, which typically occurs four to five months after insertion. Short term follow up studies of self expanding metal stents (Wallstent, Schneider, UK) in the treatment of patients with malignant biliary obstruction have shown that their us...

معصومی , صفورا, یوسف نژاد , کیوان,

Background and Purpose:Coronary artery Stenting is known to improve the outcome for ischemic heart disease. Many clinical studies have been performed to determine the long-term outcome of coronary Stenting and most of them were based on first-generation bare-metal Stents. The aim of this study is to evaluate long-term (24 6.4 month) results of second-generation bare metal stent. Materials an...

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