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- W2034810912 abstract "Background: Self-expanding metal stents(SEMS) have been widely used for palliation of malignant esophageal stenoses. However, It is still difficult to insert SEMS in malignant stenoses of upper GI tract beyond the esophagus due to the curved anatomic structures. TTS stent has the advantage of direct placement through the endoscopic working channel in malignant upper GI stenoses of unusual locations for inserting SEMS, such as the gastric outlet and duodenum. Methods:We prospectively studied the effectiveness of a newly developed nitinol TTS stent(Niti-S, Taewoong Inc., Seoul, Korea) with 18 mm in diameter and 60 or 80 mm in length, which was inserted through the 3.7 mm working channel of therapeutic upper GI endoscope(Olympus GIF-2T200) for palliation of malignant stenoses of the gastric outlet and duodenum. Results: Placement of 90 TTS stents was attempted in 86 consecutive patients, including 66 in gastric antrum, 17 in duodenum(1 in pars I, 9 in pars II, 1 in pars III, 6 in pars IV), and 7 in gastroenterostomy stoma. Technical success was achieved in 87(96.7%), except 3 in duodenum pars IV, without immediate serious complications. Clinical efficacy in relieving obstruction was achieved in 83(95.4%) out of 90 stents. Quality of life improved in 79 patients(91.7%) with oral food intake and relief of obstructive symptoms. During the follow-up, 76 patients died from stent-unrelated causes(3-434, mean 94.0 days) and 10 patients were still alive(100-211, mean 140.9 days). There was no delayed stent migration. Stent occlusion occurred in 14(16.9%) by tumor ingrowth(12) and tumor overgrowth(2). Conclusion: Placement of TTS stent is an easy, rapid, and safe procedure and offers effective palliation of malignant stenoses of the gastric outlet and duodenum, although tumor ingrowth remains to be resolved." @default.
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- W2034810912 date "2000-04-01" @default.
- W2034810912 modified "2023-10-16" @default.
- W2034810912 title "4753 Through-the-scope stent for palliation of malignant stenoses of upper gastrointestinal tract beyond the esophagus: long-term results." @default.
- W2034810912 doi "https://doi.org/10.1016/s0016-5107(00)14600-0" @default.
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