J Gastric Cancer.  2023 Oct;23(4):512-522. 10.5230/jgc.2023.23.e37.

Indications for Dental Floss Clip Traction During Gastric Endoscopic Submucosal Dissection by LessExperienced Endoscopists

• Tamari H
• Oka S
• Kotachi T
• Teshima H
• Mizuno J
• Fukuhara M
• Tanaka H
• Tsuboi A
• Yamashita K
• Yuge R
• Urabe Y
• Kitadai Y
• Arihiro K
• Tanaka S

• KMID: 2547763
• DOI: http://doi.org/10.5230/jgc.2023.23.e37

Abstract

Purpose
Dental floss clip (DFC) traction-assisted endoscopic submucosal dissection (ESD) is widely performed owing to its simplicity. This study aimed to clarify the appropriate indications for the DFC traction method in early gastric cancer when ESD is performed by less-experienced endoscopists.
Methods
and Methods: We retrospectively analyzed 1,014 consecutive patients who had undergone gastric ESD performed by less-experienced endoscopists between January 2015 and December 2020. Gastric ESD was performed without DFC in all cases before December 2017 [DFC (−) group, 376 cases], and ESD was performed with DFC in all cases after January 2018 [DFC (+) group, 436 cases]. The procedure time and rates of en bloc resection, complete resection, and adverse events of the groups were compared.
Results
The procedure time did not differ significantly between the 2 groups. However, when comparing lesions >20 mm, the procedure time in the DFC (+) group was significantly shorter than that in the DFC (−) group (95±46 vs. 75±31, P<0.01). The procedure time for lesions located in the greater curvature of the upper or middle stomach and lesions >20 mm located in the lesser curvature side of the stomach in the DFC (+) group was significantly shorter than that in the DFC (−) group.
Conclusions
The indications for DFC during gastric ESD by less-experienced endoscopists include lesions located in the greater curvature of the upper or middle stomach, and lesions >20 mm located in the lesser curvature of the stomach.

Keyword

Gastric cancer; Surgical clip; Endoscopic submucosal dissection