ArticleSurgical endoscopy2020
Real-world learning curve analysis of colorectal endoscopic submucosal dissection: a large multicenter study.
Article in Surgical endoscopy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05347446 (Hybrid Versus Non-Hybrid Endoscopic Submucosal Dissection for Colorectal Polyps), which is not on this map. Cited by 18 papers, 3 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Hybrid Versus Non-Hybrid Endoscopic Submucosal Dissection for Colorectal Polyps: A Randomized Trial (SHORT-ESD)
Who cites it
18 citing papers in PubMed, 3 syntheses or guidelines pooled it, 31 citations in OpenAlex.
- Endoscopic submucosal dissection versus endoscopic mucosal resection for the treatment of rectal tumors extending to the dentate line: a systematic review and meta-analysis.International journal of colorectal disease · 2026Pooled it
- Pooled it
- Review on colorectal endoscopic submucosal dissection focusing on the technical aspect.Surgical endoscopy · 2020Pooled it
- Endoscopic resection of colorectal laterally spreading tumors: Clinicopathologic characteristics and risk factors for treatment outcomes.World journal of gastrointestinal endoscopy · 2025Article
- Endoscopic resection of gastrointestinal tumors: Training levels and professional roles explored.World journal of gastrointestinal oncology · 2025Article
- Effectiveness of Strategy-Focused Training in Colorectal Endoscopic Submucosal Dissection: A Retrospective Observational Study.Digestive diseases and sciences · 2024Observational
- Diagnostic and therapeutic strategies for colorectal tumor with positive muscle-retracting sign.DEN open · 2024Article
- The feasibility of endoscopic resection for colorectal laterally spreading tumors.Updates in surgery · 2023Article
- Risk factors for conversion from endoscopic resection to laparoscopic resection for gastric gastrointestinal stromal tumors.The Journal of international medical research · 2023Article
- Learning curve of endoscopic submucosal dissection (ESD) with prevalence-based indication in unsupervised Western settings: a retrospective multicenter analysis.Surgical endoscopy · 2023Article
- Training in esophageal peroral endoscopic myotomy (POEM) on an ex vivo porcine model: learning curve study and training strategy.Surgical endoscopy · 2023Article
- Endoscopic submucosal dissection for tumors involving the ileocecal valve with extension into the terminal ileum: a multicenter study from the Hiroshima GI Endoscopy Research Group.Surgical endoscopy · 2023Article
- Comparison of efficiency and safety between dual-clip and rubber band-assisted ESD and conventional ESD for colonic lateral spreading tumors (LSTs) with different levels of technical difficulty: a retrospective case-control study.BMC gastroenterology · 2022Article
- Vertical tumor margin of endoscopic resection for T1 colorectal carcinoma affects the prognosis of patients undergoing additional surgery.Surgical endoscopy · 2022Article
- Factors for conversion risk of colorectal endoscopic submucosal dissection: a multicenter study.Surgical endoscopy · 2022Article
- Training program using a traction device improves trainees' learning curve of colorectal endoscopic submucosal dissection.Surgical endoscopy · 2022Article
- Efficacy of single-balloon overtube for endoscopic submucosal dissection in the proximal colon: A propensity score-matched analysis.DEN open · 2022Article
- The learning experience for endoscopic submucosal dissection in a non-academic western hospital: a single operator's untutored, prevalence-based approach.Annals of gastroenterologyArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors at 9 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe current status of colorectal endoscopic submucosal dissection (ESD) performed by endoscopists without colorectal ESD experience is unknown. This study evaluated the quality of colorectal ESD performed by endoscopists without colorectal ESD experience.
methodsWe retrospectively examined the outcomes of 420 consecutive patients with 427 superficial colorectal tumors (male/female, 251/169; mean age, 69 years) who underwent ESD. The procedures were performed by 31 endoscopists without colorectal ESD experience using needle knife-type devices at 13 hospitals from October 2008 to June 2017. Cases were divided into the first and second phases according to the experience of the endoscopist: the first phase included the first 20 cases and the second phase included case 21 and beyond. We also identified factors associated with en bloc resection failure.
resultsRates of colonic tumors, laterally spreading tumors of the non-granular type, poor scope operability, and severe submucosal fibrosis for the first phase were significantly lower than those for the second phase. The en bloc resection rates for the first and second phases were 93% and 96%, respectively. The factors associated with en bloc resection failure were poor scope operability (odds ratio [OR] 2.6; 95% confidence interval [CI] 1.0-6.5), severe submucosal fibrosis (OR 6.5; 95% CI 2.6-15.9), and the first 20 cases (OR 3.4; 95% CI 1.2-10.1).
conclusionInexperienced endoscopists should initially perform colorectal ESD for tumors without severe submucosal fibrosis under good scope operability for at least 20 cases.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.