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The effect of an attending versus neutral observer on peg transfer and intracorporeal knot-tying laparoscopic tasks

Published:September 09, 2022DOI:https://doi.org/10.1016/j.surg.2022.07.010

      Abstract

      Background

      Surgery is an outcome-based specialty where maintaining peak performance is crucial to patient care. There are a variety of identified surgeon stressors that can have an impact on performance, but one factor unique to surgical residents is the observation by an attending surgeon. This study explored how the perceived authority of the observer had an impact on the participants’ physiologic markers of stress and task completion times.

      Methods

      Eighteen general surgery residents performed the Fundamentals of Laparoscopic Surgery skills intracorporeal knot-tying and peg transfer tasks in a crossover study design while under the observation of an attending and a neutral observer. Heart rate variability, mean R-R interval, the time between R spikes on an EKG, minimum heart rate, maximum heart rate, average heart rate, and time to task completion were recorded. Analyses were completed via 2 × 2 analysis of variance with repeated measures.

      Results

      When observed by an attending, participants demonstrated higher minimum, average, and maximum heart rates (P = .046, = .007, and < .001, respectively) than when observed by a neutral observer. Attending observation also significantly shortened time to task completion, relative to neutral observation (P = .022).

      Conclusion

      Attending observation is linked to increased objective measures of stress at the time of performance with decreased task completion times. Educational efforts to optimize the response to stress during learning may lead to better outcomes.
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