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Self expanding Metal Stent

Valliappan Muthu, Inderpaul S Sehgal, Sahajal Dhooria, Amanjit Bal, Ritesh Agarwal
No abstract text is available yet for this article.
October 2016: Journal of Bronchology & Interventional Pulmonology
Shiwan K Shah, Jeffrey H Jennings, Javier I Diaz-Mendoza, Lenar Yessayan, Cynthia Ray, Michael J Simoff
BACKGROUND: Despite their safety profile, self-expanding metallic stents (SEMS) have been difficult to remove. We aim to describe our experience in removal of SEMS at Henry Ford Hospital with a specific emphasis on safety. METHODS: We reviewed the charts of all patients who underwent removal of a SEMS at Henry Ford Hospital between 2003 and 2013. We recorded demographic information, indication for initial stent placement, indication for stent removal, time to stent removal, procedure of removal, and any complications...
October 2016: Journal of Bronchology & Interventional Pulmonology
Dong Wook Lee, Hyeong Ho Jo, Juveria Abdullah, Michel Kahaleh
Endoscopic treatment of biliary strictures involving plastic stent placement has been used widely. The use of self-expandable metal stents (SEMSs) has been described for anastomotic strictures following liver transplantation (LT). This review aimed to assess and compare the efficacy of plastic stents with SEMS in LT patients. Information was retrieved regarding technical success, stricture resolution, the number of endoscopic retrograde cholangiography procedures, follow-up, immediate, and late complications...
September 2016: Clinical Endoscopy
Tian-Tian Wu, Wei-Min Li, Hu-Cheng Li, Guo-Kun Ao, Fang Zheng, Hu Lin
PURPOSE: The clinical efficacy of intraductal radiofrequency ablation (RFA) with Habib™ EndoHPB catheter, a newly developed intervention for malignant extrahepatic biliary obstruction, remains uncertain. The aim of this study was to investigate the clinical efficacy of intraductal RFA. METHODS: Data from 71 patients with extrahepatic distal cholangiocarcinoma were retrospectively analyzed. The study patients were divided into RFA and control groups. The RFA group had undergone percutaneous transhepatic intraductal RFA with a Habib™ EndoHPB catheter, followed by placement of covered or uncovered biliary self-expandable metallic stents (SEMs) whereas the control group had undergone percutaneous transhepatic covered or uncovered SEMs placement...
October 14, 2016: Cardiovascular and Interventional Radiology
M Jiménez-Pérez, J M Melgar Simón, A Durán Campos, R González Grande, J M Rodrigo López, R Manteca González
OBJECTIVE: The aim of this work was to evaluate the safety and efficacy of a fully covered self-expandable metal stent (FCSEMS) in the treatment of post-liver transplantation biliary strictures. METHODS: From October 2009 to October 2014, 44 patients with post-liver transplantation biliary stenosis were treated with the use of endoscopic retrograde cholangiography and placement of FCSEMS after informed consent. The FCSEMS was scheduled to remain in situ for 3-6 months...
September 2016: Transplantation Proceedings
Daisy Walter, Petra G A van Boeckel, Marcel J M Groenen, Bas L A M Weusten, Ben J Witteman, Gi Tan, Menno A Brink, Jan Nicolai, Adriaan C Tan, Joyce Alderliesten, Niels G Venneman, Wim Laleman, Jeroen M Jansen, Alexander Bodelier, Frank L Wolters, Laurens A van der Waaij, Ronald Breumelhof, Frans T M Peters, Robbert C H Scheffer, Ewout W Steyerberg, Anne M May, Max Leenders, Meike M C Hirdes, Frank P Vleggaar, Peter D Siersema
OBJECTIVE: For palliation of extrahepatic bile duct obstruction, self-expandable metal stents (SEMS) are superior to plastic stents in terms of stent patency and occurrence of stent dysfunction. We assessed health-related quality of life (HRQoL) after stent placement to investigate whether this also results in a difference in HRQoL between patients treated with a plastic stent or SEMS. PATIENTS AND METHODS: This randomized multicenter trial included 219 patients who were randomized to receive plastic stent (n=73) or SEMS [uncovered (n=75) and covered (n=71); n=146] placement...
October 12, 2016: European Journal of Gastroenterology & Hepatology
Tae Hoon Lee, Bong Seok Jang, Min Kyo Jung, Chan Gi Pack, Jun-Ho Choi, Do Hyun Park
To reduce tissue or tumor ingrowth, covered self-expandable metal stents (SEMSs) have been developed. The effectiveness of covered SEMSs may be attenuated by sludge or stone formation or by stent clogging due to the formation of biofilm on the covering membrane. In this study, we tested the hypothesis that a silicone membrane containing silver particles (Ag-P) would prevent sludge and biofilm formation on the covered SEMS. In vitro, the Ag-P-integrated silicone polymer-covered membrane exhibited sustained antibacterial activity, and there was no definite release of silver ions from the Ag-P-integrated silicone polymer membrane at any time point...
October 14, 2016: Scientific Reports
Myong Kim, Bumsik Hong, Hyung Keun Park
PURPOSE: To evaluate the long-term clinical efficacy and safety of double-layered polytetrafluoroethylene membrane-covered self-expandable segmental metallic stents (Uventa) in patients with chronic ureteral obstruction. MATERIALS AND METHODS: In a retrospective study, a total of 50 ureter units (44 patients) with chronic obstructions were included from July 2010 to May 2015. Indications for Uventa placement were primary stenting for malignant ureteral obstruction, failed conventional polymeric Double-J stent (PS) or percutaneous nephrostomy (PCN) technique, with comorbidities or fears limiting PS/PCN changes, or with irritation or pain due to PS/PCN...
October 13, 2016: Journal of Endourology
María-Victoria Alvarez-Sánchez, Bertrand Napoléon
Most pancreatic cancers and extrahepatic cholangiocarcinomas are unresectable at the time of diagnosis, and even in case of a resectable cancer, for elderly or patients with coexistent comorbidities, surgery is not an option. Current treatment alternatives in these scenarios are very limited. Biliary stenting with self-expanding metal stents (SEMS) is the mainstay palliative treatment of biliary obstruction due to unresectable pancreatic cancer or cholangiocarcinoma. Nevertheless, more than 50% of SEMS become occluded after 6 mo due to tumour over- and ingrowth, leading to hospital readmissions and reinterventions that significantly impair quality of life...
October 7, 2016: World Journal of Gastroenterology: WJG
Hiroyasu Iwasaki, Takashi Mizushima, Yuta Suzuki, Shigeki Fukusada, Kenta Kachi, Takanori Ozeki, Kaiki Anbe, Hironobu Tsukamoto, Fumihiro Okumura, Takashi Joh, Hitoshi Sano
Background/Aims: Self-expandable metallic stent (SEMS) placement is effective for dysphagia that results from malignant obstruction of the esophagus or gastric cardia; however, stent-related complications may be life-threatening. Thus, the goal of this study was to identify risk factors associated with complications following esophageal stenting. Methods: Of the 71 patients who underwent SEMS placement for dysphagia as a result of malignant stricture of the esophagus or gastric cardia, 53 patients with squamous cell carcinoma or adenocarcinoma, without previous SEMS placement, without a fistula, and without recurrent tumor after surgery were retrospectively identified...
October 13, 2016: Gut and Liver
Jean-Frédéric LeBlanc, Myriam Martel, Alan N Barkun
Introduction. Data are conflicting when assessing indications for colorectal self-expandable metallic stents (SEMS) in managing acute malignant large bowel obstruction (MLO). In November 2014, European and American Societies published guidelines to aid in understanding which patients might benefit from colorectal stenting. Yet, there remain marked disparities in clinical practice. Methods. A web-based survey was sent to Gastroenterologists and Surgical Specialists across Quebec to assess physicians' knowledge and adherence to the indications for colonic SEMS placement in the management of MLO using eight clinical scenarios...
2016: Canadian Journal of Gastroenterology & Hepatology
V Gómez-Dos Santos, V Díez-Nicolás, L Martínez-Arcos, J J Fabuel-Alcañiz, I Laso-García, S Álvarez-Rodríguez, F de Asís Donis-Canet, V Hevia-Palacios, M Ruiz-Hernández, F J Burgos-Revilla
: Mayor urological complications, fistulae and stenosis, mainly affect the vesicoureteral anastomosis and present in the early post-transplant period. The systematic use of ureteral catheters keeps selecbeing controversial with many groups using them only selectively depending on the existence of pretransplant or intraoperative risk factors. METHODS: We performed a bibliographic review through automatized search in the Medline bibliographic database, as the main bibliographic source, and also in Clinical Key...
October 2016: Archivos Españoles de Urología
Yusuf Sevim, Suleyman Utku Celik, Hana Yavarifar, Cihangir Akyol
Anastomotic leakage is an unfortunate complication of colorectal surgery. This distressing situation can cause severe morbidity and significantly affects the patient's quality of life. Additional interventions may cause further morbidity and mortality. Parenteral nutrition and temporary diverting ostomy are the standard treatments of anastomotic leaks. However, technological developments in minimally invasive treatment modalities for anastomotic dehiscence have caused them to be used widely. These modalities include laparoscopic repair, endoscopic self-expandable metallic stents, endoscopic clips, over the scope clips, endoanal repair and endoanal sponges...
September 27, 2016: World Journal of Gastrointestinal Surgery
Abdurrahman Kadayifci, Mustafa Atar, David G Forcione, Brenna W Casey, Peter B Kelsey, William R Brugge
Background and study aim: Obstruction of biliary self-expandable metal stents (SEMSs) is seen frequently. Radiofrequency ablation (RFA) causes tissue necrosis. This study aimed to assess the efficacy of RFA for management of occluded SEMS. Patients and methods: Patients with biliary malignancy and treated for an occluded SEMS were retrospectively reviewed. The study group comprised patients treated with RFA using an Habib endoprobe inside the SEMS. The control group comprised patients treated only with insertion of a plastic stent into an occluded SEMS...
October 7, 2016: Endoscopy
Andrea Tringali, Vincenzo Bove, Vincenzo Perri, Rosario Landi, Pietro Familiari, Ivo Boškoski, Guido Costamagna
Background and study aim: Leakage of the surgical suture is the main complication of laparoscopic sleeve gastrectomy (LSG) and is amenable to endoscopic therapy. The aim of this study was to evaluate the efficacy of a specifically designed self-expandable metal stent (SEMS) to seal the leakage. Patients and methods: Over a 2-year period, patients referred for the treatment of post-LSG fistulas underwent placement of a fully covered esophagogastric SEMS with a specific design. Results: A total of 10 patients were treated after a mean time of 50...
October 5, 2016: Endoscopy
Jiaywei Tsauo, Moon-Won Yoo, Jung-Hoon Park, Ho-Young Song, Eun Jung Jun, Young Chul Cho, Guk Bae Kim
BACKGROUND: Self-expandable metallic stent (SEMS) placement is a well-established palliative treatment approach for malignant gastroduodenal obstruction. In patients with a long (>10 cm) stricture, multiple stents placed in an overlapping fashion are often required. PURPOSE: To investigate the outcomes of overlapping SEMS placement for the palliative treatment of malignant gastroduodenal obstruction in patients with a long (>10 cm) stricture. MATERIAL AND METHODS: The medical records of 40 patients who underwent fluoroscopic overlapping SEMS placement for malignant gastroduodenal obstruction due to a long (>10 cm) stricture were reviewed...
September 28, 2016: Acta Radiologica
Xiao Zheng, Bo Sun, Ye-Chen Wu, Zhi-Yuan Bo, Wei Wan, Dao-Jian Gao, Bing Hu
OBJECTIVES: The management of benign biliary stricture is challenging. Endoscopic therapy has evolved as the first-line treatment for various benign biliary strictures. However, covered self-expandable metal stents have not been approved by the United States Food and Drug Administration for the treatment of benign biliary stricture. With this goal, we conducted this systemic review and meta-analysis to evaluate the efficacy and safety of endoscopic stenting with covered self-expandable metal stent in the treatment of benign biliary stricture...
September 28, 2016: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
Sung Ill Jang, Jin-Hyeok Hwang, Kwang-Hun Lee, Jeong-Sik Yu, Hee Wook Kim, Chang Jin Yoon, Yoon Suk Lee, Kyu Hyun Paik, Sang Hyub Lee, Dong Ki Lee
BACKGROUND AND AIM: Palliative endoscopic or percutaneous biliary drainage is used for unresectable advanced hilar cancer (HC). The best option for drainage in Bismuth type III or IV HC has not been established. The aims of this study are to identify factors predictive of endoscopic stenting failure and evaluate the effectiveness of rescue percutaneous stenting in patients with advanced HC. METHODS: Data from 110 patients with inoperable advanced HC were retrospectively reviewed...
September 25, 2016: Journal of Gastroenterology and Hepatology
Akihisa Matsuda, Masao Miyashita, Satoshi Matsumoto, Nobuyuki Sakurazawa, Goro Takahashi, Takeshi Matsutani, Marina Yamada, Eiji Uchida
BACKGROUND: The short-term safety and efficacy of a self-expandable metallic colonic stent (SEMS) insertion followed by elective surgery, "bridge to surgery (BTS)", for malignant large-bowel obstruction (MLBO) have been well described comparing with emergency surgery. The aim of this study was to compare short-term outcomes of endoscopic decompression using a SEMS versus a transanal decompression tube (TDT). MATERIALS AND METHODS: From January 2005 to November 2014, a total of 101 patients with MLBO underwent surgery at our single institution were retrospectively identified...
October 2016: Journal of Surgical Research
Rintaro Moroi, Katsuya Endo, Ryo Ichikawa, So Takahashi, Takeharu Shiroki, Hirohiko Shinkai, Fumitake Ishiyama, Shoichi Kayaba
The feasibility of endoscopic resection for synchronous early colon cancer after placement of self-expandable metallic stents (SEMS) for malignant colorectal obstruction is unknown. Herein we evaluated 3 cases of endoscopic resection for synchronous early colorectal cancers after SEMS placement. Patient 1 was an 82-year-old man with obstructive sigmoid colon cancer. We curatively treated the synchronous descending colon cancer with endoscopic submucosal dissection (ESD) and the rectal cancer with endoscopic mucosal resection (EMR) after SEMS placement...
September 2016: Endoscopy International Open
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