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Self expanding Metal Stent

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https://www.readbyqxmd.com/read/29895072/fully-vs-partially-covered-selfexpandable-metal-stent-for-palliation-of-malignant-esophageal-strictures-a-randomized-trial-the-copac-study
#1
Paul Didden, Agnes N Reijm, Nicole S Erler, Leonieke M M Wolters, Thjon J Tang, Pieter C J Ter Borg, Ivonne Leeuwenburgh, Marco J Bruno, Manon C W Spaander
BACKGROUND:  Covered esophageal self-expandable metal stents (SEMSs) are currently used for palliation of malignant dysphagia. The optimal extent of the covering to prevent recurrent obstruction is unknown. Therefore, we aimed to compare fully covered (FC) versus partially covered (PC) SEMSs in patients with incurable malignant esophageal stenosis. METHODS:  In this multicenter randomized controlled trial, 98 incurable patients with dysphagia caused by a malignant stricture of the esophagus or cardia were randomized 1:1 to an FC-SEMS or PC-SEMS...
June 12, 2018: Endoscopy
https://www.readbyqxmd.com/read/29889691/optimal-interval-from-placement-of-a-self-expandable-metallic-stent-to-surgery-in-patients-with-malignant-large-bowel-obstruction-a-preliminary-study
#2
Akihisa Matsuda, Masao Miyashita, Satoshi Matsumoto, Nobuyuki Sakurazawa, Youichi Kawano, Takeshi Yamada, Takeshi Matsutani, Eiji Uchida
OBJECTIVES: The aim of this study was to investigate the risk factors for postoperative complications (POCs) and optimal interval between a self-expandable metallic stent (SEMS) placement and elective surgery, "bridge to surgery (BTS)" in patients with malignant large bowel obstruction. MATERIALS AND METHODS: BTS strategy was attempted in 49 patients with malignant large bowel obstruction from January 2013 to March 2017 in our institution. Two of these patients were excluded because they had undergone emergency surgery for SEMS migration...
June 8, 2018: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/29871029/ex-vivo-assessment-of-anchoring-force-of-covered-biflanged-metal-stent-and-covered-self-expandable-metal-stent-for-interventional-eus
#3
Ryosuke Tonozuka, Shunji Yunoki, Takao Itoi, Atsushi Sofuni, Takayoshi Tsuchiya, Kentaro Ishii, Reina Tanaka, Mitsuyoshi Honjo, Shuntaro Mukai, Mitsuru Fujita, Kenjiro Yamamoto, Yasutsugu Asai, Yukitoshi Matsunami, Takashi Kurosawa, Hiroyuki Kojima, Yuichi Nagakawa, Yoshiyasu Nagakawa
BACKGROUND AND AIMS: EUS-guided transmural drainage (EUS-TD) using a covered biflanged metal stent (CBFMS) and a conventional tubular biliary covered self-expandable metal stent (CSEMS) has recently been performed by EUS experts. However, appropriate traction force of the sheath to prevent the migration during stent deployment is well unknown. Herein, we assessed the anchoring force (AF) of the distal flange in CBFMSs and CSEMSs. METHODS: The AFs of 4 CBFMSs (Stents AX, NG, PL, and SX) and 6 CSEMSs (Stents BF, BP, EG, HN, SP, and WF) were compared in an ex vivo setting...
June 5, 2018: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29870974/self-expanding-metal-stents-for-the-treatment-of-post-surgical-esophageal-leaks-a-tertiary-referral-center-experience
#4
Andrea Anderloni, Chiara Genco, Marco Massidda, Milena Di Leo, Uberto Romario Fumagalli, Riccardo Rosati, Loredana Correale, Roberta Maselli, Elisa Chiara Ferrara, Manol Jovani, Alessandro Repici
BACKGROUND/AIMS: The study aimed to evaluate the effectiveness and safety of self-expanding metal stents (SEMS) in the management of post-surgical esophageal leaks. METHODS: Retrospective data of consecutive patients with a post-surgical esophageal leak treated by means of a metal stent between January 2008 and December 2014 at the Humanitas Research Hospital (Milan, Italy) were extracted from a prospectively maintained register of SEMS used for benign indications, such as post-surgical benign esophageal strictures and/or leaks...
June 5, 2018: Digestive Surgery
https://www.readbyqxmd.com/read/29868636/safety-and-efficacy-of-self-expanding-metal-stents-for-biliary-drainage-in-patients-receiving-neoadjuvant-therapy-for-pancreatic-cancer
#5
Darren D Ballard, Syed Rahman, Brian Ginnebaugh, Abdul Khan, Kulwinder S Dua
Background and study aims:  Durable biliary drainage is essential during neoadjuvant therapy (NAT) in patients with pancreatic cancer who present with biliary obstruction. Plastic stents (PS) tend to occlude readily, resulting in delay/interruption of treatment. Our aim was to evaluate the safety and efficacy of self-expanding metal stents (SEMS) for biliary drainage in patients receiving NAT for pancreatic cancer. Patients and methods:  From 2009 to 2014, all consecutive patients with resectable pancreatic cancer at one tertiary center had SEMS placed for biliary drainage before NAT was started...
June 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29860406/nutrition-therapy-in-esophageal-cancer-consensus-statement-of-the-gastroenterological-society-of-taiwan
#6
M-J Chen, I-C Wu, Y-J Chen, T-E Wang, Y-F Chang, C-L Yang, W-C Huang, W-K Chang, B-S Sheu, M-S Wu, J-T Lin, C-H Chu
A number of clinical guidelines on nutrition therapy in cancer patients have been published by national and international societies; however, most of the reviewed data focused on gastrointestinal cancer or non-cancerous abdominal surgery. To collate the corresponding data for esophageal cancer (EC), a consensus panel was convened to aid specialists from different disciplines, who are involved in the clinical nutrition care of EC patients. The literature was searched using MEDLINE, Embase, the Cochrane Central Register of Controlled Trials, and the ISI Web of Knowledge...
May 31, 2018: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/29858135/endoluminal-brachytherapy-bronchus-and-oesophagus
#7
REVIEW
C Hennequin, S Guillerm, S Wong, L Quéro
Endobronchial brachytherapy could be proposed in case of endoluminal tumours either as a palliative or a curative treatment. As a curative treatment, endobronchial brachytherapy could obtain a high local control rate in case of limited disease. In palliative setting, endobronchial brachytherapy improved thoracic symptoms in more than 80% of cases, but it is less efficient than external beam radiation therapy for palliation. It could be also proposed to maintain the airway open after laser therapy. Oesophageal brachytherapy is a valuable option as a palliative treatment, underused at this time...
May 29, 2018: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29850458/efficacy-and-safety-of-lumen-apposing-self-expandable-metal-stents-for-eus-guided-cholecystostomy-a-meta-analysis-and-systematic-review
#8
REVIEW
Nikhil R Kalva, Vishwas Vanar, David Forcione, Matthew L Bechtold, Srinivas Reddy Puli
Background: Patients with acute cholecystitis are treated with early cholecystectomy. A subset of patients are unfit for surgery due to comorbidities and late presentation. Prompt gall bladder drainage (GBD) with percutaneous or endoscopic approach remains a viable therapeutic option for nonoperative candidates. Endoscopic ultrasound (EUS) guided transluminal gall bladder drainage (EUS-GBD) continues to evolve as an alternative approach to percutaneous drainage. With continued refinement in stent technology, lumen apposing self-expandable metal stent (LAMS) offers several advantages...
2018: Canadian Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29849597/self-expanding-metallic-stent-fracture-in-the-treatment-of-malignant-biliary-obstruction
#9
Chuanguo Zhou, Baojie Wei, Jianfeng Wang, Qiang Huang, Hui Li, Kun Gao
Background: Palliative therapies for malignant biliary obstruction (MBO) include choledochojejunostomy and self-expanding metallic stent (SEMS) insertion. Fractures following SEMS insertion in MBO treatment are scarce. Objective: To assess the clinical features of biliary stent fractures and evaluate associated factors. Methods: One hundred fifty-six consecutive patients who underwent biliary SEMS placement for MBO treatment at Beijing Chaoyang Hospital affiliated to Capital Medical University, in 2010-2015, were evaluated retrospectively...
2018: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/29849588/comparison-on-the-efficacy-between-partially-covered-self-expandable-metal-stent-with-funnel-shaped-enlarged-head-versus-uncovered-self-expandable-metal-stent-for-palliation-of-gastric-outlet-obstruction
#10
Jung Wan Choe, Jong Jin Hyun, Dong-Won Lee, Sang Jun Suh, Seung Young Kim, Sung Woo Jung, Young Kul Jung, Ja Seol Koo, Hyung Joon Yim, Sang Woo Lee
Background: Shape modification has been one of the methods adopted to improve stent patency but has not always translated into positive outcome. The aim of this study was to compare the efficacy of shape-modified partially covered self-expandable metal stent (SEMS) that has enlarged head versus uncovered SEMS for palliation of gastric outlet obstruction (GOO). Methods: A total of 48 patients underwent insertion of either enlarged-head SEMS ( n = 24) or uncovered SEMS (uSEMS) ( n = 24) for palliation of GOO from July 2009 to July 2016...
2018: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/29843165/efficacy-of-self-expandable-metal-stents-compared-with-multiple-plastic-stents-in-benign-biliary-strictures
#11
Guido Costamagna
No abstract text is available yet for this article.
June 2018: Endoscopy
https://www.readbyqxmd.com/read/29796908/endoscopic-necrosectomy-through-percutaneous-self-expanding-metal-stents-may-be-a-promising-additive-in-treatment-of-necrotizing-pancreatitis
#12
Andreas Thorsen, Anders Malthe Borch, Srdan Novovic, Palle Nordblad Schmidt, Lise Lotte Gluud
BACKGROUND: The recommended treatment of infected walled-off necrosis (WON) in necrotizing pancreatitis entails a step-up treatment approach starting with endoscopic necrosectomy (ETDN). AIMS: To report a small number of cases from 2013 to 2016 that were not amenable to or failed to respond to ETDN, and to describe a new, minimally invasive technique that may be a promising supplement to ETDN in this difficult patient population. METHODS: Using the Seldinger technique, a fully covered self-expanding metal stent (SEMS) was placed percutaneously in order to drain, irrigate, and debride WON...
May 24, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29782434/endoscopic-treatment-of-the-coloanal-anastomotic-dehiscence-and-stricture-stenting-via-rendezvous-technique
#13
Erkin Oztas, Fatih Saygili, Murat Ulas, Selcuk Disibeyaz
An anastomotic leak is a serious complication of colorectal surgery. Leak management is often grueling, and a definitive stoma is often mandatory for rescue therapy. Herein, we present a patient who experienced coloanal anastomotic dehiscence and complete stricture at the proximal part of the anastomosis. This case was successfully treated with a fully covered self-expandable metallic stent placement via the combined endoscopic (per ileostomy) and manual (per anal channel) rendezvous technique.
May 18, 2018: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/29779221/nasojejunal-stent-technique-njst-a-new-system-to-prevent-fully-covered-metal-stent-migration-in-the-treatment-of-benign-esophageal-diseases
#14
Oscar Víctor Hernández Mondragón, Raquel Palos Cuellar, Enrique Murcio Pérez
Fully covered self-expandable metal stents (FCSEMS) have been used for the treatment of benign esophageal conditions such as perforation, leaks, and strictures [1]; high clinical success is reported [2]. Different anchoring methods have been described (clips, suturing devices, over-the-scope clips and Shim technique [2]), because of high migration rates (4-36%) [3,4]. However, not all cases are candidates, mostly in "difficult" cases where enteral feeding is needed [5]. We report the use of the nasojejunal-stent technique (NJST) to prevent migration of FCSEMS in three difficult cases...
May 19, 2018: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/29776653/accuracy-of-phase-contrast-velocity-mapping-proximal-and-distal-to-stent-artifact-during-cardiac-magnetic-resonance-imaging
#15
Catherine M Avitabile, Matthew A Harris, Ravi S Doddasomayajula, Steven G Chopski, Matthew J Gillespie, Yoav Dori, Andrew C Glatz, Mark A Fogel, Kevin K Whitehead
Little data are available on the accuracy of phase-contrast magnetic resonance imaging (PC-MRI) velocity mapping in the vicinity of intravascular metal stents other than nitinol stents. Therefore, we sought to determine this accuracy using in vitro experiments. An in vitro flow phantom was used with 3 stent types: (1) 316L stainless steel, (2) nitinol self-expanding, and (3) platinum-iridium. Steady and pulsatile flow was delivered with a magnetic resonance imaging-compatible pump (CardioFlow 5000, Shelley Medical, London, Ontario, Canada)...
April 20, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29775814/composite-self-expanding-bioresorbable-prototype-stents-with-reinforced-compression-performance-for-congenital-heart-disease-application-computational-and-experimental-investigation
#16
Fan Zhao, Wen Xue, Fujun Wang, Laijun Liu, Haoqin Shi, Lu Wang
Stents are vital devices to treat vascular stenosis in pediatric patients with congenital heart disease. Bioresorbable stents (BRSs) have been applied to reduce challenging complications caused by permanent metal stents. However, it remains almost a total lack of BRSs with satisfactory compression performance specifically for children with congenital heart disease, leading to importantly suboptimal effects. In this work, composite bioresorbable prototype stents with superior compression resistance were designed by braiding and annealing technology, incorporating poly (p-dioxanone) (PPDO) monofilaments and polycaprolactone (PCL) multifilament...
May 8, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29774088/endoscopic-ultrasound-guided-drainage-of-pancreatic-walled-off-necrosis-using-self-expanding-metal-stents-without-fluoroscopy
#17
Barbara Braden, Andreas Koutsoumpas, Michael A Silva, Zahir Soonawalla, Christoph F Dietrich
AIM: To investigate whether endoscopic ultrasound (EUS)-guided insertion of fully covered self-expandable metal stents in walled-off pancreatic necrosis (WOPN) is feasible without fluoroscopy. METHODS: Patients with symptomatic pancreatic WOPN undergoing EUS-guided transmural drainage using self-expandable and fully covered self expanding metal stents (FCSEMS) were included. The EUS visibility of each step involved in the transmural stent insertion was assessed by the operators as "visible" or "not visible": (1) Access to the cyst by needle or cystotome; (2) insertion of a guide wire; (3) introducing of the diathermy and delivery system; (4) opening of the distal flange; and (5) slow withdrawal of the delivery system until contact of distal flange to cavity wall...
May 16, 2018: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29770780/placement-of-lumen-apposing-metal-stents-to-drain-pseudocysts-and-walled-off-pancreatic-necrosis-can-be-safely-performed-on-an-outpatient-basis-a-multicenter-study
#18
Douglas G Adler, Janak Shah, Jose Nieto, Kenneth Binmoeller, Yasser Bhat, Linda Jo Taylor, Ali A Siddiqui
Backgrounds and Objectives: No study on the use of lumen-apposing fully covered self-expanding metal stent (LAMS) to drain pancreatic fluid collections (PFCs) has evaluated outcomes of patients in the outpatient setting. The objective of this multicenter study was to evaluate the clinical outcomes, success rate, and adverse events of the LAMS for endoscopic ultrasound (EUS)-guided transmural drainage of patients with symptomatic PFCs on an inpatient versus an outpatient basis. Methods: This was a multicenter, retrospective study conducted at 4 tertiary care centers...
May 17, 2018: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/29767391/self-expanding-metallic-biliary-stents-time-to-suit-up
#19
EDITORIAL
Iman Andalib, Michel Kahaleh
No abstract text is available yet for this article.
May 16, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29763597/a-hem-o-lok-induced-tracheoesophageal-fistula-cured-by-temporary-airway-stenting-modified-with-three-dimensional-printing
#20
Yichao Han, Su Yang, Wei Huang, Zhongmin Wang, Hecheng Li
We present the case of a fistula between the trachea and the esophagogastric anastomosis in a 58-year-old male after esophagectomy. A Hem-o-Lok clip used at the time to ligate the azygos vein was discovered by esophagoscopy and bronchoscopy to be eroding into the both structures. A covered self-expandable Y-shaped metallic tracheobronchial stent was customized with a 3D printed airway model and inserted in place, with endoscopic injection of fibrin glue to the anastomotic site. 64 days after implantation, the stent was withdrawn with complete healing of the fistula...
May 12, 2018: Annals of Thoracic Surgery
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