ArticleBMC urology2026
Intraoperative reaction time of the surgeon during retrograde intrarenal surgery.
Article in BMC urology, 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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6 authors.
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Abstract
backgroundReusable flexible ureteroscopes (rfURS) are costly and fragile equipment that can be easily damaged during surgery. We aimed to investigate the change in the surgeon's reaction time during retrograde intrarenal surgery (RIRS), which may be a risk factor for rfURS damage in prolonged cases.
methodsThe patients who underwent RIRS with rfURS by the same surgeon were prospectively included in the study and the collected data were retrospectively analyzed. A phone application program (Reflex Test 2.2.4) designed to evaluate the user's reaction time with visual color change was used to evaluate the reaction time. According to the application format, the surgeon had to press the square when the rectangle's color changed from red to blue. The surgeon's reaction time was evaluated just before the operation and then every 10 minutes of the surgery.
resultsA total of 109 patients were included in the study. The mean stone volume was 1050.4 ± 874.5 mm
conclusionCompared to the pre-procedure period, the surgeon's reaction time increased during the surgery. This result may indicate increased surgeon fatigue during extended procedures, and additional investigation of its possible clinical implications is needed.
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