{"title":"Robot-assisted versus conventional endoscopic submucosal dissection: a systematic review and meta-analysis.","authors":"Menghan Wang, Yan Zhao, Yijun Chen, Wenhai Wang","doi":"10.1177/17562848261458700","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Robot-assisted endoscopic submucosal dissection (RA-ESD) has been developed to address the ergonomic and technical limitations of conventional ESD (C-ESD). However, the current evidence base remains limited and is predominantly derived from preclinical studies.</p><p><strong>Objectives: </strong>To systematically evaluate the comparative efficacy and safety of RA-ESD versus C-ESD.</p><p><strong>Design: </strong>Systematic review and meta-analysis.</p><p><strong>Data sources and methods: </strong>A comprehensive literature search was conducted in major electronic databases in accordance with the PRISMA 2020 Statement. Comparative studies assessing RA-ESD versus C-ESD were included. Continuous outcomes were pooled using mean differences (MDs), and dichotomous outcomes were analyzed using odds ratios (ORs), both with 95% confidence intervals (CIs). Random-effects models were applied for all primary analyses.</p><p><strong>Results: </strong>Twelve studies (<i>n</i> = 581) were included, of which the majority were preclinical. In exploratory pooled analyses, RA-ESD was associated with shorter submucosal dissection time (min) (MD -6.62, 95% CI -9.38 to -3.86) and overall procedure time (min) (MD -6.00, 95% CI -9.13 to -2.86). Dissection speed (mm<sup>2</sup>/min) was higher with RA-ESD (MD 35.80, 95% CI 8.98 to 62.62), although heterogeneity was substantial. The blind dissection rate (%) was lower in the RA-ESD group (MD -22.64, 95% CI -31.49 to -13.78). RA-ESD was associated with a higher en bloc resection rate (OR 6.44, 95% CI 1.05 to 39.39) and a lower risk of muscular injury (OR 0.18, 95% CI 0.06 to 0.53). No significant difference in perforation was observed.</p><p><strong>Conclusion: </strong>RA-ESD demonstrates promising technical advantages over C-ESD, including improved procedural efficiency and reduced technical difficulty, without an apparent increase in major adverse events. However, given that the current evidence is predominantly preclinical and characterized by substantial heterogeneity, these findings should be interpreted as preliminary and hypothesis-generating. Further well-designed clinical studies are required to confirm the real-world effectiveness, safety, and long-term outcomes of RA-ESD.</p><p><strong>Trial registration: </strong>PROSPERO registration number: CRD420261336534.</p>","PeriodicalId":48770,"journal":{"name":"Therapeutic Advances in Gastroenterology","volume":"19 ","pages":"17562848261458700"},"PeriodicalIF":3.8000,"publicationDate":"2026-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13272980/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Therapeutic Advances in Gastroenterology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1177/17562848261458700","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/1/1 0:00:00","PubModel":"eCollection","JCR":"Q1","JCRName":"GASTROENTEROLOGY & HEPATOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background: Robot-assisted endoscopic submucosal dissection (RA-ESD) has been developed to address the ergonomic and technical limitations of conventional ESD (C-ESD). However, the current evidence base remains limited and is predominantly derived from preclinical studies.
Objectives: To systematically evaluate the comparative efficacy and safety of RA-ESD versus C-ESD.
Design: Systematic review and meta-analysis.
Data sources and methods: A comprehensive literature search was conducted in major electronic databases in accordance with the PRISMA 2020 Statement. Comparative studies assessing RA-ESD versus C-ESD were included. Continuous outcomes were pooled using mean differences (MDs), and dichotomous outcomes were analyzed using odds ratios (ORs), both with 95% confidence intervals (CIs). Random-effects models were applied for all primary analyses.
Results: Twelve studies (n = 581) were included, of which the majority were preclinical. In exploratory pooled analyses, RA-ESD was associated with shorter submucosal dissection time (min) (MD -6.62, 95% CI -9.38 to -3.86) and overall procedure time (min) (MD -6.00, 95% CI -9.13 to -2.86). Dissection speed (mm2/min) was higher with RA-ESD (MD 35.80, 95% CI 8.98 to 62.62), although heterogeneity was substantial. The blind dissection rate (%) was lower in the RA-ESD group (MD -22.64, 95% CI -31.49 to -13.78). RA-ESD was associated with a higher en bloc resection rate (OR 6.44, 95% CI 1.05 to 39.39) and a lower risk of muscular injury (OR 0.18, 95% CI 0.06 to 0.53). No significant difference in perforation was observed.
Conclusion: RA-ESD demonstrates promising technical advantages over C-ESD, including improved procedural efficiency and reduced technical difficulty, without an apparent increase in major adverse events. However, given that the current evidence is predominantly preclinical and characterized by substantial heterogeneity, these findings should be interpreted as preliminary and hypothesis-generating. Further well-designed clinical studies are required to confirm the real-world effectiveness, safety, and long-term outcomes of RA-ESD.
期刊介绍:
Therapeutic Advances in Gastroenterology is an open access journal which delivers the highest quality peer-reviewed original research articles, reviews, and scholarly comment on pioneering efforts and innovative studies in the medical treatment of gastrointestinal and hepatic disorders. The journal has a strong clinical and pharmacological focus and is aimed at an international audience of clinicians and researchers in gastroenterology and related disciplines, providing an online forum for rapid dissemination of recent research and perspectives in this area.
The editors welcome original research articles across all areas of gastroenterology and hepatology.
The journal publishes original research articles and review articles primarily. Original research manuscripts may include laboratory, animal or human/clinical studies – all phases. Letters to the Editor and Case Reports will also be considered.