Abstract:

Objective To investigate the effectiveness of self-made “8” type dental floss traction in endoscopic submucosal dissection (ESD) of the colon and rectum. Methods The patients with superficial colorectal lesions of a diameter of ≥1 cm who underwent endoscopic treatment between November 2021 and July 2022 were enrolled and divided into two groups based on whether traction was used during the surgery, which were traction assisted ESD group (n=23, using self-made “8” dental floss traction) and traditional ESD group (n=22, non-traction). The total surgical time, submucosal detachment time, complete lesion resection rate, curative resection rate, and incidence of adverse events between the two groups were analyzed and compared. Results The total surgical time [(58.5±16.2) min vs (83.5±22.2) min, P<0.05] and submucosal detachment time [(46.3±16.1) min vs (68.0±18.8) min, P<0.05] in the traction assisted ESD treatment group were significantly shorter than those in the traditional ESD treatment group. The complete resection rate in both groups was 100%; the curative resection rate of the traditional ESD group was 90.9%, and the curative resection rate of the traction assisted ESD group was 91.3%，there was no significant difference between the two groups (P>0.05); There was no statistically significant difference in the incidence of adverse events such as bleeding and perforation between the two groups (P>0.05). Conclusions Compared with traditional ESD, using self-made “8” type dental floss traction to assist ESD can significantly reduce surgical time and was a safe and effective treatment method for superficial colorectal lesions.

Key words: Superficial colorectal lesions, Endoscopic submucosal dissection, Internal traction, Surgical time