Underwater Endoscopic Mucosal Resections of Non-ampullary Small Duodenal Tumors

• DOI: 10.7704/kjhugr.2022.0009
• Publication Date: 2022-05-30T06:14:20Z
• Authors: Jung Wook Lee; Su Jin Kim; Cheol Woong Choi; Dae Gon Ryu
• Keywords: Duodenal bulb; Endoscopic mucosal resection; Perforation; Duodenal cancer; Endoscopic submucosal dissection; Duodenoscopy; Therapeutic Endoscopy

Conventional endoscopic mucosal resection (EMR) and submucosal dissection (ESD) have been reported to be effective therapeutic options in sporadic non-ampullary duodenal tumors, but the rate of perforation is higher than that other gastrointestinal lesions. Underwater EMR (UW EMR) has a safe alternative conventional ESD for superficial adenomas. We reviewed medical chart report patients who underwent between August 2018 February 2020. A total 12 tumors were resected by UW EMR. The mean specimen lesion sizes 6.7 mm (2~16 mm) 5.3 (2~10 mm), respectively. Of lesions, nine (75.0%) located 2nd portion, three (25.0%) bulb. procedural time was 7.8 minutes (3.2~18.7 minutes). Histologic results showed 10 dysplasia (nine low-grade, one high-grade) two neuroendocrine tumors. favorable efficacy safety within small dysplastic lesions compared previous studies’ results. Furthermore, it might considered treatment option with caution subepithelial tumor third layer.