ArticleTherapeutic advances in gastroenterology2025
Evaluation of the cecal withdrawal vocal timer in screening colonoscopies for optimizing withdrawal time and adenoma detection rate.
Article in Therapeutic advances in gastroenterology, 2025. 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
Background: Longer cecal withdrawal time has been linked to a higher adenoma detection rate (ADR), with a minimum duration of 6 min recommended. Therefore, we developed the cecal withdrawal vocal timer (CWVT), a novel software tool that is command-activated at cecal intubation and vocally informs the endoscopist of the withdrawal duration every minute. Objectives: Evaluating the efficacy of the CWVT in enhancing adenoma detection. Design: A retrospective, single-center study of screening colonoscopies with adequate preparation and documented cecal intubation. Methods: The primary endpoint was the change in the department's ADR before (2022) and after the CWVT introduction (January 2023-February 2024). Secondary endpoints included the ADR change between procedures with and without CWVT after its introduction and the ADR change among individual endoscopists. Results: The study included 1098 and 1330 eligible colonoscopies pre- and post-CWVT introduction, respectively. Following CWVT introduction, 67.3% of colonoscopies were performed with activated CWVT, with a median withdrawal time of 8.7 (interquartile range: 6.9-11.8) min. The department ADR was 25.5% following CWVT introduction, without a significant difference compared to the year before (26.2%, Conclusion: While an overall ADR improvement was not achieved with the CWVT, the ADR was higher in post-CWVT procedures that utilized the CWVT than those that did not, warranting further prospective studies to evaluate CWVT's contribution to screening colonoscopy performance.
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