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  • Title: Facilitating retroflexed endoscopic full-thickness resection through loop-mediated or rope-mediated countertraction (with videos).
    Author: Lu J, Jiao T, Li Y, Zheng M, Lu X.
    Journal: Gastrointest Endosc; 2016 Jan; 83(1):223-8. PubMed ID: 26364964.
    Abstract:
    BACKGROUND AND AIMS: Endoscopic full-thickness resection (EFTR) is difficult to perform in a retroflexed fashion in the gastric fundus and lesser curvature. Here we describe two simple methods to provide countertraction and thereby facilitate dissection. METHODS: In this retrospective cohort study, 62 patients diagnosed as having gastric submucosal tumors in the fundus or in the lesser curvature received EFTR with or without countertraction methods. For the clip-with-thread method, a clip tied with surgical suture was anchored on the distal edge of the tumor to provide countertraction; for the loop-assisted method, a snare placed on the transparent cap beforehand was adopted to grasp the tumor to provide countertraction. RESULTS: Mean operative time was significantly reduced in the thread-with-clip group and loop-assisted group (45 minutes, 40 minutes, respectively) compared with the time needed in the traditional EFTR group (85 minutes). Intraoperative pneumoperitoneum occurred regularly among the 3 groups because of iatrogenic perforation, but fewer patients in the thread-with-clip group and loop-assisted group (23%, 18%, respectively) needed abdominal puncture to relieve free air and stabilize life signs compared with patients in the traditional EFTR group (63%). A reduced occurrence of high fever after surgery may contribute as another advantage from accelerated dissection. Both techniques did not jeopardize oncologic safety during short-term follow-up. CONCLUSIONS: Both the thread-with-clip method and loop-assisted method provide effective countertraction and offer faster and safer gastric EFTR in difficult anatomic locations.
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