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Self expanding Metal Stent

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https://www.readbyqxmd.com/read/28209556/palliation-of-malignant-gastroduodenal-obstruction-fluoroscopic-metallic-stent-placement-with-different-approaches
#1
Elif Bulut, Türkmen Çiftçi, Okan Akhan, Devrim Akıncı
PURPOSE: We aimed to evaluate the safety and effectiveness of fluoroscopy-guided gastroduodenal metallic stent placement with different approaches in malignant obstruction. METHODS: We retrospectively assessed 53 patients (33 men and 20 women; mean age, 58.7±15 years) who underwent stent placement between February 2004 and April 2014. All patients had unresectable tumors. The most common causes of obstruction were gastric (38%) and pancreatic cancers (36%). Uncovered self-expandable metallic stents (SEMS) were placed under fluoroscopic guidance...
February 17, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28208009/impact-of-a-newly-developed-short-double-balloon-enteroscope-on-stent-placement-in-patients-with-surgically-altered-anatomies
#2
Koichiro Tsutsumi, Hironari Kato, Hiroyuki Okada
A newly developed short double-balloon enteroscope with a working channel enlarged to a diameter of 3.2 mm is a novel innovation in stent placement for patients with surgically altered anatomies. Herein, we report three patients in whom this new scope contributed to an efficient technique and ideal treatment. In the first case, the double guidewire technique was efficient and effective for multiple stent placements. In the second case, covered self-expandable metal stent (SEMS) placement, which is the standard treatment for malignant biliary obstruction, could be performed in a technologically sound and safe manner...
February 17, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28208004/a-novel-partially-covered-self-expandable-metallic-stent-with-proximal-flare-in-patients-with-malignant-gastric-outlet-obstruction
#3
Naminatsu Takahara, Hiroyuki Isayama, Yousuke Nakai, Shuntaro Yoshida, Tomotaka Saito, Suguru Mizuno, Hiroshi Yagioka, Hirofumi Kogure, Osamu Togawa, Saburo Matsubara, Yukiko Ito, Natsuyo Yamamoto, Minoru Tada, Kazuhiko Koike
Background/Aims: Endoscopic placement of self-expandable metal stents (SEMSs) has emerged as a palliative treatment for malignant gastric outlet obstruction (GOO). Although covered SEMSs can prevent tumor ingrowth, frequent migration of covered SEMSs may offset their advantages in preventing tumor ingrowth. Methods: We conducted this multicenter, single-arm, retrospective study at six tertiary referral centers to evaluate the safety and efficacy of a partially covered SEMS with an uncovered large-bore flare at the proximal end as an antimigration system in 41 patients with symptomatic malignant GOO...
February 17, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28208003/partially-covered-metal-stents-may-not-prolong-stent-patency-compared-to-uncovered-stents-in-unresectable-malignant-distal-biliary-obstruction
#4
Jae Yun Kim, Gyu Bong Ko, Tae Hoon Lee, Sang-Heum Park, Yun Nah Lee, Young Sin Cho, Yunho Jung, Il-Kwun Chung, Hyun Jong Choi, Sang-Woo Cha, Jong Ho Moon, Young Deok Cho, Sun-Joo Kim
Background/Aims: Controversy still exists regarding the benefits of covered self-expandable metal stents (SEMSs) compared to uncovered SEMSs. We aimed to compare the patency and stent-related adverse events of partially covered SEMSs (PC-SEMSs) and uncovered SEMSs in unresectable malignant distal biliary obstruction. Methods: A total of 134 patients who received a PC-SEMS or uncovered SEMS for palliation of unresectable malignant distal biliary obstruction were reviewed retrospectively...
February 17, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28202234/endoscopic-ultrasound-guided-transmural-drainage-of-walled-off-pancreatic-necrosis-using-a-step-up-approach-a-single-centre-experience
#5
Surinder S Rana, Vishal Sharma, Ravi Sharma, Rajesh Gupta, Deepak K Bhasin
BACKGROUND: Walled off necrosis (WON) can be treated endoscopically using multiple transmural plastic stents or fully covered self-expandable metallic stent (FCSEMS) and direct endoscopic necrosectomy (DEN). We evaluated the efficacy of "step-up" endoscopic transmural approach for treatment of WON. METHODS: Retrospective analysis of data of 86 patients with WON who were treated with attempted endoscopic ultrasound (EUS) guided "step up" transmural drainage during last 5 years was done...
February 8, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28184377/novel-use-of-a-uniquely-designed-lumen-apposing-metal-stent-in-benign-gastric-outlet-obstruction-in-two-patients
#6
Ross Pinson, Induruwa Pathirana, John Magulick, Jeremy Domanski, Emuejevoke Okoh, Craig Womeldorph
Current guidelines recommend management of benign gastric outlet obstruction (GOO) with serial dilations. Self-expanding metal stents are effective, but their use is complicated by high rates of migration. We present two cases from our institution where a uniquely designed, lumen-apposing metal stent (LAMS) was successfully used to alleviate benign GOO without stent migration.
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28182300/endoscopic-double-stenting-for-gastrojejunostomy-anastomotic-and-biliary-obstruction-in-a-patient-with-roux-en-y-reconstruction
#7
Tadahisa Inoue, Kiyoaki Ito, Masashi Yoneda
Although it has been reported that endoscopic double stenting using a self-expandable metallic stent (SEMS) for gastroduodenal and biliary obstruction is useful [1-2], the efficacy and safety of performing double stenting using balloon enteroscopy is uncertain in patients with surgically altered anatomy. We describe a patient who had undergone gastrectomy and then underwent endoscopic double stenting for gastrojejunostomy anastomotic and biliary obstruction. A man in his 50s with a history of having undergone distal gastrectomy with Roux-en-Y reconstruction because of gastric cancer developed gastrojejunostomy anastomotic obstruction due to local anastomotic recurrence and peritoneal dissemination (Fig...
February 9, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28181964/covered-balloon-expanding-stents-in-airway-stenosis
#8
Adnan Majid, Fayez Kheir, Jey Chung, Daniel Alape, Bryan Husta, Scott Oh, Erik Folch
BACKGROUND: The balloon-expanding stents are widely available but rarely described for use within the tracheobronchial tree. This report describes our experience with these stents in airway stenosis particularly as a lobar salvage therapy. METHODS: This was a retrospective review of all records in which the balloon-expanding stents were used at a tertiary medical center. Ages, sex, location of stenosis, etiology of stenosis, stent size, duration of stent placement and associated interventions for airway stenosis were recorded...
February 8, 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28174384/-eleven-patients-with-gastric-cancer-who-received-chemotherapy-after-stent-placement-for-gastric-outlet-obstruction
#9
Shunji Endo, Tomo Nakagawa, Ken Konishi, Masakazu Ikenaga, Katsuya Ohta, Shinsuke Nakashima, Kenichi Matsumoto, Kazuhiro Nishikawa, Takeshi Ohmori, Terumasa Yamada
Endoscopic placement of self-expandable metallic stents is reportedly effective for gastric outlet obstructions due to advanced gastric cancer, and is less invasive than gastrojejunostomy. For patients who have good performance status, we administer chemotherapy after stent placement, although the safety and feasibility of this chemotherapy have not yet been discussed in full. Between 2011 and 2015, 15 patients at our institution underwent endoscopic gastroduodenal stent placement for gastric outlet obstruction due to gastric cancer...
January 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28168366/evolution-of-patency-rates-of-self-expandable-bare-metal-stents-for-endovascular-treatment-of-femoro-popliteal-arterial-occlusive-disease-does-stent-design-matter
#10
Karla Maria Treitl, Benedikt Woerner, Regina Schinner, Michael Czihal, Susan Notohamiprodjo, Ulrich Hoffmann, Marcus Treitl
OBJECTIVE: To analyse the patency rates of femoro-popliteal stenting with different self-expandable Nitinol stent-designs. METHODS: Two hundred and twenty-two patients (142 (64%) male; age 72.4 ± 11.6 years) with symptomatic femoro-popliteal peripheral arterial occlusive disease (PAOD) underwent percutaneous transluminal angioplasty (PTA) and stenting with three different Nitinol stents (interwoven IW: n = 70; closed-cell CC: n = 85; open-cell OC: n = 67)...
February 6, 2017: European Radiology
https://www.readbyqxmd.com/read/28163269/successful-endovascular-treatment-of-aortoiliac-bifurcation-stenosis-using-an-empirically-based-t-and-protrude-stenting-with-self-and-balloon-expandable-stents
#11
Ken-Ichiro Sasaki, Hidetoshi Chibana, Takafumi Ueno, Naoki Itaya, Masahiro Sasaki, Yoshihiro Fukumoto
A 73-year-old woman with arteriosclerosis obliterans (ASO) was underwent a crossover stenting for an aortoiliac bifurcation from the right common iliac artery (CIA) with a self-expandable bare-metal stent (SE-BMS); however, a new stenosis later occurred just behind the bifurcation of the left CIA. An ex vivo experiment demonstrated that culotte-stenting by additional implantation of a balloon-expandable bare-metal stent (BE-BMS) through stent struts of the SE-BMS would be empirically infeasible. Although we had initially planned a T-stenting for the additional implantation of a BE-BMS in the left CIA, we finally deployed the stent in the CIA with the proximal end protruding into the previously-implanted SE-BMS through the stent struts to avoid incomplete coverage of the stenosis by reference to the ex vivo experiments...
February 6, 2017: Kurume Medical Journal
https://www.readbyqxmd.com/read/28151854/endoscopic-radiofrequency-ablation-combined-with-fully-covered-self-expandable-metal-stent-for-inoperable-periampullary-carcinoma-in-a-liver-transplant-patient-a-case-report
#12
Qing Tian, Guijie Wang, Yamin Zhang, Yan Jin, Zilin Cui, Xiaoye Sun, Zhongyang Shen
RATIONALE: Postliver transplant periampullary carcinoma is an extremely uncommon disease. PATIENT CONCERNS: Cutaneous jaundice in a patient who had received a liver transplant 4 years earlier. DIAGNOSIS: Periampullary carcinoma. INTERVENTIONS: Radiofrequency ablation plus fully covered self-expanding metal stents (FCSEMS). OUTCOMES: The treatment of malignant neoplasm of the ampulla of Vater is the patient by radiofrequency ablation plus FCSEMS placement was successful...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28144066/erosion-of-esophageal-stent-into-left-main-bronchus-causing-airway-compromise
#13
S Aneeshkumar, L Sundararajan, Rajan Santosham, Rajkumar Palaniappan, Ubal Dhus
Covered or uncovered self-expanding metal stents are currently used for the palliative treatment of neoplastic esophageal strictures or compressions and esophageal leaks or fistulas due to malignancies. Erosion of esophageal stents into the respiratory tract is a rare complication and that too has been reported mostly as an early complication within few days or weeks. Here, we present the case of a 31-year-old female, who presented with a late complication of an esophageal stent eroding into the left main bronchus causing respiratory distress...
January 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28137596/ew-7197-a-activin-like-kinase-5-inhibitor-suppresses-granulation-tissue-after-stent-placement-in-rat-esophagus
#14
Eun Jung Jun, Jung-Hoon Park, Jiaywei Tsauo, Su-Geun Yang, Dae-Kee Kim, Kun Yung Kim, Min Tae Kim, Sung Hwan Yoon, Young Je Lim, Ho-Young Song
BACKGROUND & AIMS: Self-expanding metallic stent (SEMS) placement is a well-established method for treating malignant esophageal strictures; however, this procedure has not gained widespread acceptance for treating benign esophageal strictures because of the granulation tissue formation. The aim of the present study was to investigate if EW-7197, a novel per-oral transforming growth factor-β type I receptor kinase inhibitor, suppressed granulation tissue formation after SEMS placement in the rat esophagus...
January 27, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28133296/-a-case-of-malignant-colonic-obstruction-bearing-another-synchronous-obstructive-lesion-in-the-anal-side-of-the-colon
#15
Minoru Murayama, Osamu Nakashima, Satoko Murakami, Katsuo Yamazaki, Kazuo Koizumi, Asako Shimazaki, Shinichi Asaka, Kentaro Yamaguchi, Hajime Yokomizo, Shunichi Shiozawa, Kazuhiko Yoshimatsu, Takeshi Shimakawa, Takao Katsube, Yoshihiko Naritaka
There are several reasons for failure in the insertion of a self-expandable metallic stent(SEMS)into a malignant colonic obstruction(MCO)including difficulty in insertion of the catheter or guidewire through the stenotic lumen into the oral side or perforation relatedto the technique. Herein, we report a case of MCO bearing another synchronous obstructive lesion in the anal side of the colon that couldhave explainedthe difficulty in the insertion of the SEMS into the stenosis locatedin the oral side, which might have indicated the need for an emergency operation for relieving the obstruction...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133252/-a-case-of-locally-far-advanced-colon-cancer-resected-by-laparoscopic-surgery-after-colonic-stent-insertion-and-neoadjuvant-chemotherapy
#16
Yasushi Ishii, Yosuke Hirano, Taro Munechika, Keita Tanaka, Yoshihiro Yonemitsu, Masako Nomi, Ryosuke Shibata, Tatsuya Okamoto, Hiroshi Maeno, Jun Yanagisawa, Shunji Kawamoto, Tomoaki Noritomi
We report a case of locally far-advanced colon cancer resected by laparoscopic surgery after colonic stent insertion and neoadjuvant chemotherapy. A 71-year-old man with obstructive symptoms was admitted to our hospital in July 2015. CT revealed a sigmoid colon tumor infiltrating the retroperitoneum and small intestine. Lower gastrointestinal endoscopy showed a sigmoid colon cancer. Self-expandable metallic stent insertion for obstructive colon cancer alleviated the patient's symptoms quickly. Four courses of neoadjuvant chemotherapy(XELOX)reduced the primary tumor in size, allowing for laparoscopic surgical resection...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133169/-a-case-of-self-expandable-metallic-stent-placement-to-treat-colon-obstruction-due-to-metastatic-gastric-cancer
#17
Jota Mikami, Yutaka Kimura, Yoichi Makari, Genta Sawada, Shin Nakahira, Ken Nakata, Tameyoshi Yamamoto, Masaki Tsujie, Hiroki Ohsato
A66 -year-old woman presented with abdominal pain and nausea. She was diagnosed with wall thickening of the gastric antrum and bowel obstruction caused by tumors of the splenic flexure on computed tomography. Aself -expandable metallic stent(SEMS)was placed in the splenic flexure of the colon 4 days after transanal ileus tube replacement. No complication was observed, and she could ingest a normal diet, permitting her discharge from the hospital 12 days after SEMS placement. She was diagnosed with gastric cancer(Type 4, cT4a[SE], N2, H0, P1, M1[LYM], cStage IV )on upper gastrointestinal endoscopy and computed tomography, and administration of S-1 plus oxaliplatin(SOX)was started...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133156/-successful-placement-of-self-expandable-metallic-stent-for-malignant-gastrojejunostomy-obstruction-following-pancreatoduodenectomy-a-case-report
#18
Manabu Hashimoto, Takeshi Tono, Yusuke Okubo, Tomohiro Katayama, Yuji Ogawa, Tomotarou Kawazoe, Takaaki Ishii, Hiroya Yamaguchi, Koji Shinozaki, Yasuhito Kawasaki, Minoru Otsuru, Hideyuki Hayashi
A man in his 50 s, who had undergone subtotal stomach-preserving pancreatoduodenectomy with modified Child's reconstruction for pancreatic cancer 8 months back, was hospitalized because of vomiting and difficulty in feeding.Radiological and endoscopic studies revealed a malignant obstruction of the gastrojejunostomy site due to peritoneal recurrence of the cancer.Although a self-expandable metallic stent(SEMS)was placed in the anastomotic site, it slipped back into the stomach 3 days later.It was suggested that the migration was caused by antiperistalsis, because the SEMS was placed in the afferent loop...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133084/-outcomes-of-bridge-to-surgery-for-obstructive-colorectal-cancer-after-metallic-stent-placement-in-our-hospital
#19
Seigo Kashimura, Yutaka Hoshino, Mitsuo Sanpei, Makoto Okano, Hitoshi Inoue, Ryoma Suzuki, Hidenobu Akatsuka
Recently, the endoscopic placement of self-expanding metallicstents (SEMSs)has become widespread for the treatment of acute malignant colorectal obstruction. This study was designed to evaluate the clinical outcomes of 22 patients with obstructive colorectal cancer who underwent SEMS placement as a bridge to surgery(BTS)from January 2012 to December 2015. The subjects comprised 15 men and 7 women with a mean age of 68.1 years. Placement and decompression were successfully achieved in all cases. No serious complications arose from the placement...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133075/-two-cases-of-obstructive-colorectal-cancer-effectively-treated-with-colonic-stent-placement
#20
Taiki Masuda, Kenta Kobayashi, Masaki Kakimoto, Haruya Koshiishi, Tetsunori Yoshimura
We report 2 cases of obstructive colorectal cancer that were successfully treated with a self-expanding metallic stent (SEMS). They were both diagnosed with obstructive colorectal cancer. Colonoscopy was performed to make a definitive and qualitative diagnosis and to relieve the stenosis using a SEMS. The SEMSs were inserted without complications. A few days later, the patients underwent laparoscope-assisted sigmoidectomy with lymph node resection. Despite the colon obstruction, a primary anastomosis was performed...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
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