ArticleFrontiers in medicine2026
Is painless colonoscopy associated with trainee learning? A single-center study of insertion speed and adenoma detection curves in 1,769 procedures.
Article in Frontiers in medicine, 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
Objective: To compare the learning curves of cecal intubation time and adenoma detection rate (ADR) between painless (sedated) and conventional (non-sedated) colonoscopy performed by trainees. Methods: This single-center retrospective cohort comprised the first 1,769 colonoscopies performed by eight trainees without prior colonoscopy experience, grouped by sedation status into a conventional group ( Results: Cecal intubation time was shorter in the painless group (median 6 vs. 10 min, Conclusion: Intubation time was shorter overall under sedation, but the faster learning of the painless group vanished once individual heterogeneity was modeled, and ADR showed no robust improvement. Sedation, era, and equipment were confounded; no causal inference regarding the effect of sedation on learning can be drawn from these data, and prospective confirmation is required. Intubation speed alone should not serve as a benchmark of overall colonoscopy competence.
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