Journal
AMERICAN JOURNAL OF SURGERY
Volume 203, Issue 1, Pages 37-43Publisher
EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC
DOI: 10.1016/j.amjsurg.2011.08.009
Keywords
Sleep deprivation; Laparoscopic surgical skills training; Learning; NASA-TLX; Resident training
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BACKGROUND: There have been conflicting reports of the effects of modest sleep deprivation on surgical skills. The aim of this study was to assess the effects of a 24-hour call shift on technical and cognitive function, as well as the ability to learning a new skill. METHODS: Thirty-one students trained to expert proficiency on a virtual reality part-task trainer. They then were randomized to either a control or sleep-deprived group. On the second testing day they were given a novel task. Fatigue was assessed using the Epworth Sleepiness Scale. The National Aeronautics and Space Administration-Task Load Index was used to assess cognitive capabilities. RESULTS: There was no difference between the control and sleep-deprived groups for performance or learning of surgical tasks. Subjectively, the Epworth Sleepiness Scale showed an increase in sleepiness. The National Aeronautics and Space Administration-Task Load Index showed an increase in total subjective mental workload for the sleep-deprived group. CONCLUSIONS: Sleep-deprived subjects were able to complete the tasks despite the increased workload, and were able to learn a new task proficiently, despite an increase in sleepiness. (C) 2012 Elsevier Inc. All rights reserved.
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