Open Access
CC BY 4.0 · Endosc Int Open 2025; 13: a27330944
DOI: 10.1055/a-2733-0944
Original article

Safety and efficacy of scissor-type knives in colorectal endoscopic submucosal dissection: International multicenter observational study

Authors

  • Kuilang Liu

    1   Gastroenterology, Beijing Shijitan Hospital Capital Medical University, Beijing, China (Ringgold ID: RIN117968)
    2   Gastroenterology, Capital Medical University Affiliated Beijing Friendship Hospital, Beijing, China (Ringgold ID: RIN26455)
  • Jing Wu

    1   Gastroenterology, Beijing Shijitan Hospital Capital Medical University, Beijing, China (Ringgold ID: RIN117968)
    2   Gastroenterology, Capital Medical University Affiliated Beijing Friendship Hospital, Beijing, China (Ringgold ID: RIN26455)
  • Yuzuru Tamaru

    3   Department of Gastroenterology, Kure Medical Center and Chugoku Cancer Center, Kure, Japan (Ringgold ID: RIN37086)
  • Yadan Wang

    1   Gastroenterology, Beijing Shijitan Hospital Capital Medical University, Beijing, China (Ringgold ID: RIN117968)
  • Hui Su

    1   Gastroenterology, Beijing Shijitan Hospital Capital Medical University, Beijing, China (Ringgold ID: RIN117968)
  • Chunmei Guo

    1   Gastroenterology, Beijing Shijitan Hospital Capital Medical University, Beijing, China (Ringgold ID: RIN117968)
  • Canghai Wang

    1   Gastroenterology, Beijing Shijitan Hospital Capital Medical University, Beijing, China (Ringgold ID: RIN117968)
  • Hong Liu

    1   Gastroenterology, Beijing Shijitan Hospital Capital Medical University, Beijing, China (Ringgold ID: RIN117968)
  • Makoto Kobayashi

    4   Gastroenterology, Yokkaichi Municipal Hospital, Yokkaichi, Japan (Ringgold ID: RIN37036)
  • Kiyoaki Honma

    5   Nihonkai General Hospital, Sakata, Japan (Ringgold ID: RIN157373)
  • Takuya Yamada

    6   Department of Gastroenterology, Osaka Rosai Hospital, Sakai, Japan (Ringgold ID: RIN13824)
  • Levchenko Evgeniy

    7   Endoscopy Department, City Hospital No. 2, St. Petersburg, Russia
  • Noor Mohammed

    8   Gastroenterology, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom of Great Britain and Northern Ireland (Ringgold ID: RIN4472)
  • Sergio Cadoni

    9   Digestive Endoscopy Unit, CTO Hosptital, Iglesias, Italy
  • Adolfo Parra-Blanco

    10   NIHR Nottingham Digestive Diseases Biomedical Research Unit, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom of Great Britain and Northern Ireland (Ringgold ID: RIN9820)
  • Antipova Mariya

    11   Saint Petersburg State Budgetary Institution of Healthcare, City Mariinskaya Hospital, St. Petersburg, Russia
  • Sauid Ishaq

    12   Aston University, Aston University, Birmingham, United Kingdom of Great Britain and Northern Ireland (Ringgold ID: RIN1722)
    13   Health and science, Dudley Group of Hospitals NHS Trust, Dudley, United Kingdom of Great Britain and Northern Ireland (Ringgold ID: RIN7714)
  • Toshio Kuwai

    14   Gastrointestinal Endoscopy and Medicine, Hiroshima University Hospital, Hiroshima, Japan (Ringgold ID: RIN68272)

Clinical Trial:

Registration number (trial ID): UMIN000031511, Trial registry: UMIN Japan (http://www.umin.ac.jp/english/), Type of Study: Prospective Multi-Center Study


Abstract

Background and study aims

Scissor-type knives have shown safety and efficacy in endoscopic submucosal dissection (ESD) procedures, particularly in studies from Japan. However, the safety and efficacy of these devices in international settings, particularly outside Japan, is not well established.

Patients and methods

This was a prospective, multicenter, observational study conducted across nine international centers, encompassing a total of 461 lesions from 460 patients. In subgroup analysis, 162 lesions came from four institutions in Japan (Japanese institutions group, JAG) and 299 lesions from five institutions outside Japan (non-Japanese institutions group [NJAG]). After 1:1 propensity score matching resulted in 120 matched pairs of lesions, key outcomes were compared between groups.

Results

The overall perforation rate during ESD procedures was 0.87%. Intraoperative perforations were observed more frequently in NJAG than JAG (3 vs. 1 event, 1.9% vs. 0.33%, respectively), although not statistically significant (P = 0.127). Overall incidence of delayed bleeding was also 0.87%, with no delayed bleeding reported in NJAG. Post propensity matching analysis revealed a significantly slower median resection speed in NJAG compared with JAG (9.12 0.86–56.57 vs 26.21 1.95–93.54 mm²/min, P < 0.001). Both histological complete resection and curative resection rates were significantly lower in NJAG than in JAG with rates of 88.3% vs 98.3% for histological complete resection and 83.3% vs 95% for curative resection (both P < 0.01).

Conclusions

Use of scissor-type knives in colorectal ESD outside Japan demonstrated a favorable safety profile. However, certain performance outcomes, such as resection speed and resection success rates, were inferior to Japanese institutions.



Publication History

Received: 09 December 2024

Accepted after revision: 24 October 2025

Accepted Manuscript online:
27 October 2025

Article published online:
11 November 2025

© 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/).

Georg Thieme Verlag KG
Oswald-Hesse-Straße 50, 70469 Stuttgart, Germany

Bibliographical Record
Kuilang Liu, Jing Wu, Yuzuru Tamaru, Yadan Wang, Hui Su, Chunmei Guo, Canghai Wang, Hong Liu, Makoto Kobayashi, Kiyoaki Honma, Takuya Yamada, Levchenko Evgeniy, Noor Mohammed, Sergio Cadoni, Adolfo Parra-Blanco, Antipova Mariya, Sauid Ishaq, Toshio Kuwai. Safety and efficacy of scissor-type knives in colorectal endoscopic submucosal dissection: International multicenter observational study. Endosc Int Open 2025; 13: a27330944.
DOI: 10.1055/a-2733-0944
 
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