Saudi Journal of Gastroenterology
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Year : 2017  |  Volume : 23  |  Issue : 1  |  Page : 52-59

Endoscopic resection of gastric submucosal tumors: A comparison of endoscopic nontunneling with tunneling resection and a systematic review

Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China

Correspondence Address:
Yang Bai
Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou - 510515
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1319-3767.199116

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Background/Aim: Endoscopic tunneling resection is a relatively novel endoscopic technology for removing gastric submucosal tumors. Our study aimed to compare the differences between tunneling and nontunneling resection for gastric submucosal tumors.Materials and Methods: Resections of gastric submucosal tumors (n = 97) performed from 2010 to 2015 at our endoscopy center were reviewed, and PubMed was searched for clinical studies on gastric submucosal tumor resection by endoscopic nontunneling and tunneling techniques. Results: At our endoscopy center, nontunneling (Group 1) and tunneling resection (Group 2) were performed for 78 and 19 submucosal tumors, respectively; median tumor diameters were 15 and 20 mm (P = 0.086), median procedural times were 50 and 75 min (P = 0.017), successful resection rates were 94.9% (74/78) and 89.5% (17/19) (P = 0.334), and en bloc resection rates were 95.9% (71/74) and 94.1% (16/17) (P = 0.569) in the Groups 1 and 2, respectively. Postoperative fever, delayed hemorrhage and perforation, hospitalization time, and hospitalization expense were statistically similar between the 2 groups. A literature review on gastric submucosal tumor resection suggested that the en bloc resection rates of the two methods for tumors with a median diameter of 15–30 mm were also high, and there were no relapses during the follow-up period. Conclusions: Both endoscopic nontunneling and tunneling resection seem to be effective and safe methods for removing relatively small gastric submucosal tumors. Compared with endoscopic nontunneling, tunneling resection does not seem to have distinct advantages for gastric submucosal tumors, and has a longer mean operative time.

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