A snare combined with endoclips to assist in endoscopic submucosal dissection for intraepithelial neoplasia in the entire colon and rectum.

Abstract:

OBJECTIVE:The use of mucosal traction to assist in colonic and rectal endoscopic submucosal dissection (ESD), especially for deep colonic ESD, is challenging. We developed a method of inverse insertion of a snare into the endoscopic working channel to deliver it into the colon together with the endoscope. With this method, two types of mucosal traction, per-anal external traction (PET) and per-anal internal traction (PIT), could be achieved using a snare with endoclips to assist in ESD (ESD-SE). Here, we aimed to examine its safety and feasibility. METHODS:From January 2017 to September 2018, 50 colonic and rectal intraepithelial neoplasias in 50 patients were treated with ESD-SE. Data on lesion location and size, operation time, en bloc resection and R0 resection rates, and operative complications were collected. RESULTS:Among 50 lesions, 15 lesions were located in the deep colon/proximal colon, and 35 lesions were in the distal colon. The median (interquartile range) size of lesions, submucosal dissection time, and total operation time were 4.5 (3.0-5.0) cm, 32 (18-81) min, and 50 (33-108) min, respectively. All lesions were completely resected, with R0 resection rates of 100%. No intraoperative and postoperative complications occurred. Postoperative pathology revealed 40 and 10 cases of high-grade and low-grade intraepithelial neoplasia, respectively. CONCLUSIONS:The approach using insertion of a selective snare into the colon together with the endoscope, especially into the deep colon, was safe and simple. Use of the snare combined with endoclips could effectively assist in total colonic ESD. Further research is warranted.

journal_name

Scand J Gastroenterol

authors

Zhang Q,Xing TY,Wang Z

doi

10.1080/00365521.2018.1549270

subject

Has Abstract

pub_date

2019-01-01 00:00:00

pages

114-121

issue

1

eissn

0036-5521

issn

1502-7708

journal_volume

54

pub_type

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