Mucosectomy device-assisted endoscopic resection of gastric subepithelial lesions

Lian Yong Li, Bai Wen Li, Parit Mekaroonkamol, Hui Min Chen, Shan Shan Shen, Hui Luo, Sunil Dacha, Yue Xue, Sarah Cristofaro, Steven Keilin, Field Willingham, Qiang Cai

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Objective: Some gastrointestinal subepithelial tumors (SETs) have malignant potential and complete resection may be required. However, endoscopic submucosal dissection (ESD) can be a tedious procedure and requires a long and extensive training to master. Devices for endoscopic full-thickness resection (EFTR) are limited and are not widely available. We report here a simpler endoscopic method to resect small SETs using a commercially available endoscopic mucosal resection (EMR) kit and enucleation technique. Methods: All patients with SET who underwent device-assisted resection at our tertiary care hospital from April 2015 to November 2016 were enrolled in this retrospective study. All procedures were performed by a single expert endoscopist with an advanced endoscopy trainee. A mucosectomy and a limited dissection under mucosa were performed to preserve the mucosa before a device-assisted enucleation of the tumor to facilitate endoscopic closure of the defect closure in all cases. Results: A total of 12 patients aged 38–70 y, of whom six were males, were included. Most of the tumors originated from the muscularis propria and were located at the proximal gastric body. The mean procedural duration was 53 minutes (range 23-91 min). The average size of the lesions was 13 mm (range 9–21 mm). The mean duration of hospitalization was 1.3 days. Bleeding and intentional perforation were all successfully managed during the procedure and did not result in any clinically significant adverse event. Conclusion: A device-assisted EFTR using a commercially available EMR kit is a safe and feasible method for the endoscopic resection of small gastric extrovert SETs.

Original languageEnglish (US)
Pages (from-to)215-221
Number of pages7
JournalJournal of Digestive Diseases
Issue number4
StatePublished - Apr 1 2020


  • endoscopic resection
  • gastrointestinal stromal tumors
  • ligation
  • subepithelial tumor

ASJC Scopus subject areas

  • Gastroenterology


Dive into the research topics of 'Mucosectomy device-assisted endoscopic resection of gastric subepithelial lesions'. Together they form a unique fingerprint.

Cite this