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논문 기본 정보

자료유형
학술저널
저자정보
Naminatsu Takahara (The University of Tokyo) Hiroyuki Isayama (The University of Tokyo) Yousuke Nakai (The University of Tokyo) Shuntaro Yoshida (The University of Tokyo) Tomotaka Saito (JR Tokyo General Hospital) Suguru Mizuno (Toshiba Hospital) Hiroshi Yagioka (Tokyo Metropolitan Police Hospital) Hirofumi Kogure (The University of Tokyo) Osamu Togawa (Kanto Central Hospital) Saburo Matsubara (The University of Tokyo) Yukiko Ito (Japanese Red Cross Medical Center) Natsuyo Yamamoto (The University of Tokyo) Minoru Tada (The University of Tokyo) Kazuhiko Koike (The University of Tokyo)
저널정보
거트앤리버 발행위원회 Gut and Liver Gut and Liver 제11권 제4호
발행연도
2017.7
수록면
481 - 488 (8page)

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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. The primary outcome was clinical success, and the secondary outcomes were technical success, stent dysfunction, adverse events, and survival after stent placement. Results: The technical and clinical success rates were 100% and 95%, respectively. Stent dysfunctions occurred in 17 patients (41%), including stent migration in nine (23%), tumor ingrowth in one (2%), and tumor overgrowth in four (10%). Two patients (5%) developed adverse events: one pancreatitis and one perforation. No procedurerelated death was observed. Conclusions: A novel partially covered SEMS with a large-bore flare proximal end was safe and effective for malignant GOO but failed to prevent stent migration. Further research is warranted to develop a covered SEMS with an optimal antimigration system.

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