ArticleWorld journal of gastrointestinal endoscopy2026
Mastering gastric endoscopic submucosal dissection: A learning curve analysis of over 100 consecutive cases performed by Western endoscopist.
Article in World journal of gastrointestinal endoscopy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundGastric endoscopic submucosal dissection (ESD) is a minimally invasive therapeutic procedure indicated for
aimTo analyze the learning curve of gastric submucosal endoscopic dissection in one of the largest Western series reported to date.
methodsA retrospective study was conducted, including patients who underwent ESD for superficial gastric neoplasms between 2009 and 2025. Patients were divided into 4 consecutive chronological phases to assess temporal trends in outcomes: (1) Phase I: From case 1 to case 40; (2) Phase II: From case 41 to case 80; (3) Phase III: From case 81 to case 120; and (4) Phase IV: From case 121 to case 162. The following parameters were analyzed within each group and phase: Age, gender, average procedure time, tumor size,
resultsA total of 164 ESD procedures were performed. The duration of the first phase, second phase, third phase, and fourth phase was 77 months, 40 months, 37 months, and 50 months, respectively. In the first phase of the study (phase I) the mean tumor size, mean procedure time,
conclusionProficiency in gastric ESD takes more than one hundred procedures to be achieved in Western settings, with high standards of safety and efficacy, provided that rigorous and systematic training is combined with a planned progression of case complexity.
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