A self-controlled chain ring combined with tissue clip traction-assisted technique for endoscopic submucosal dissection of early colorectal tumors
10.3760/cma.j.cn321463-20240710-00280
- VernacularTitle:自控式链圈联合组织夹牵引辅助技术在早期结直肠肿瘤内镜黏膜下剥离术中的应用
- Author:
Chao YU
1
;
Tao DONG
;
Yuan XU
;
Lin JING
;
Yaohui WANG
;
Chunyang LIU
;
Jun XIAO
Author Information
1. 南京中医药大学附属医院 江苏省中医院消化内镜中心，南京 210000
- Publication Type:Journal Article
- Keywords:
Colorectal neoplasms;
Self-controlled chain ring;
Traction;
Endoscopic submucosal dissection;
Challenging locations
- From:
Chinese Journal of Digestive Endoscopy
2025;42(11):875-880
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the efficacy and safety of a self-controlled chain ring combined with tissue clip traction-assisted technique for endoscopic submucosal dissection (ESD) of early colorectal tumors.Methods:Data of patients with early colorectal tumors in technically challenging locations who underwent ESD at the Digestive Endoscopy Center of Jiangsu Province Hospital of Chinese Medicine from January 2021 to April 2024 were enrolled in the retrospective cohort study. According to the treatment methods, they were divided into the traction-assisted ESD group (a self-controlled chain ring combined with tissue clip traction-assisted) and the traditional ESD group (without traction). Clinical endoscopic data, treatment conditions, and complications were compared between the two groups.Results:A total of 61 patients were enrolled, including 29 patients in the traction-assisted ESD group and 32 patients in the traditional ESD group. There were no significant differences in age, gender, tumor size, shape, location, pit pattern, pathological type, depth of invasion, one-time complete resection, or curative resection between the two groups ( P>0.05). The traction-assisted group demonstrated significantly shorter dissection times (37.55±20.44 min VS 60.78±29.34 min, t=-3.552, P<0.001) and lower complication rates [3.4% (1/29) VS 25.0% (8/32), χ2=4.035, P=0.045]. Complications in the traction-assisted ESD group included 1 muscularis propria superficial injury (no perforation/uncontrollable bleeding), versus 6 muscularis injuries and 2 micro-perforations in controls. Conclusion:The combined traction technique improves dissection efficiency and reduces procedural risks for challenging colorectal ESD.
