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Korean J Gastrointest Endosc. 2009 Apr;38(4):193-198. Korean. Original Article.
Jung WJ , Kang DH , Choi CW , Kim HW , Kim GH , Heo J , Song GA , Cho M , Jung KS , Kim YW , Kim DU , Kim PJ , Kim ID .
Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.

BACKGROUND/AIMS: It has been reported the placement of a double-layered pyloric combination stent can overcome the disadvantage of the increased ingrowth observed for an uncovered stent and the increased migration for a covered stent. But this did not satisfactorily prevent stent migration and it caused stent migration more frequently than with using the uncovered stent. This study evaluated the usefulness of applying a clip in an effort to reduce stent migration. METHODS: Fifteen patients with malignant gastric outlet obstruction were treated with endoscopic placement of a double-layered combination pyloric stent. Three endoscopic clips were then applied to fix the proximal end of the enteral stent to the gastric or duodenal mucosa. The clinical efficacy and especially the rate of migration were analyzed. RESULTS: The technical and clinical success rate was 100% (15/15) and 93.3% (14/15), respectively. No stent migration was observed in any of the patients. Three patients (20%) experienced complications such as stent collapse. The median stent patency period was 83.4 days. CONCLUSIONS: Endoscopic clipping for enteral stent placement is effective for preventing stent migration in patients with malignant gastric outlet obstruction.

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