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June 5, 2026Techniques in Coloproctology0 citationsOpen Access

Traction-assisted versus conventional endoscopic submucosal dissection for colorectal lesions: an updated systematic review and meta-analysis of randomized trials

LFL. FadeliMDM. DesoukyLAL. Alfarone

Key Points

  • This analysis aims to compare the effectiveness and safety of traction-assisted ESD with conventional ESD for superficial colorectal lesions and to assess the influence of endoscopist experience on outcomes.
  • Systematic review and meta-analysis of randomized controlled trials
  • Included 10 trials with 1008 participants comparing TA-ESD and C-ESD
  • Pooled estimates generated using random-effects models with subgroup analyses for endoscopist experience
  • TA-ESD associated with shorter procedure time (MD = −19.23 min; 95% CI −26.7 to −11.8; P < 0.0001)
  • Reduced intraoperative perforation risk (RR = 0.46; 95% CI 0.215–0.999; P = 0.049)
  • No significant difference in resection quality between TA-ESD and C-ESD methods

Abstract

Endoscopic submucosal dissection (ESD) allows en bloc, organ-sparing removal of large superficial colorectal lesions; however, conventional ESD (C-ESD) is often time intensive, technically challenging, and associated with clinically relevant adverse events. Traction-assisted ESD (TA-ESD) was developed to enhance submucosal visualization and maintain a stable dissection plane. Still, its overall impact on efficiency, effectiveness, and safety, particularly across different levels of operator experience, remains unclear. We therefore compared TA-ESD with C-ESD for superficial colorectal lesions and examined whether endoscopist experience influences outcomes. In line with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidance, PubMed, Scopus, Web of Science, the Cochrane Library, and ClinicalTrials.gov were searched from inception through 8 November 2025. Randomized controlled trials (RCTs) enrolling patients with superficial colorectal lesions undergoing TA-ESD versus C-ESD and reporting outcomes on an intention-to-treat (ITT) or modified intention-to-treat (mITT) basis were included. Pooled estimates were generated using random-effects models, with prespecified subgroup analyses according to endoscopist experience. From 930 screened records, 10 RCTs met the inclusion criteria, totaling 1008 participants (499 TA-ESD; 509 C-ESD). TA-ESD was associated with shorter procedure time than C-ESD (MD = −19.23 min; 95% CI −26.7 to −11.8; P < 0.0001), although heterogeneity was substantial and certainty was very low. Resection quality was high and similar between approaches, with no meaningful differences in en bloc or R0 resection rates. In the C-ESD arm, 13% of cases required rescue conversion to traction. TA-ESD increased overall resection speed (MD = 2.06 mm 2 /min; 95% CI 0.59–3.53; P = 0.006). TA-ESD showed a borderline reduction in intraoperative perforation (RR = 0.46; 95% CI 0.215–0.999; P = 0.049), whereas delayed perforation and delayed bleeding were infrequent and did not differ between techniques. In colorectal RCTs, TA-ESD was associated with shorter procedure time than C-ESD, consistent with prior meta-analyses. However, certainty for this endpoint was very low, and heterogeneity was substantial. The main demonstrated advantage was procedural efficiency, whereas resection quality and overall safety were broadly comparable. Implementation-related outcomes, including rescue conversion to traction and handover to another operator, were reported in only a limited number of trials and should therefore be considered exploratory and hypothesis-generating rather than definitive. Future multicenter RCTs should standardize workflow-related endpoint definitions and determine which lesions, procedural settings, and operator contexts derive the greatest incremental benefit from dedicated adjunctive traction.

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Cite This Study

Fadeli et al. (2026) studied this question.

synapsesocial.com/papers/6a22672f763171746d545e35https://doi.org/10.1007/s10151-026-03363-z
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