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Erschienen in: Surgical Endoscopy 10/2010

01.10.2010

Stress impairs psychomotor performance in novice laparoscopic surgeons

verfasst von: Sonal Arora, Nick Sevdalis, Rajesh Aggarwal, Pramudith Sirimanna, Ara Darzi, Roger Kneebone

Erschienen in: Surgical Endoscopy | Ausgabe 10/2010

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Abstract

Background

Little is known about acute stress in surgery although it is recognized to impair human performance in safety–critical industries. This study aimed to establish a direct empirical link between stress and psychomotor performance of novice surgeons.

Methods

Eighteen participants completed this cross-sectional study. Participants carried out laparoscopic tasks on a MIST-VR simulator. Validated dexterity parameters were obtained from MIST-VR (path length, time taken, number of errors). Stress was assessed using the validated Imperial Stress Assessment Tool (ISAT). This captured stress subjectively using the State Trait Anxiety Inventory (STAI) questionnaire and objectively using salivary cortisol and mean and maximum heart rate.

Results

Regarding technical performance, median values obtained were 55.12 s (range = 22.9–99.8) for time taken, 4.83 (range = 3–7) for economy of motion, and 88.0 (range = 35–175) for number of errors made. Subjective stress (STAI) correlated with economy of motion (r = 0.53, p = 0.042) and number of errors (r = 0.51, p = 0.034). Objective stress (mean and maximum heart rate) correlated with time taken (r = 0.62, p = 0.004), economy of motion (r = 0.55, p = 0.048), and number of errors (r = 0.67, p = 0.012).

Conclusion

This is the first study to demonstrate through direct correlation that stress impairs surgical performance on a simulator. Training in managing stress may be required to minimize these deleterious consequences and improve patient care.
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Metadaten
Titel
Stress impairs psychomotor performance in novice laparoscopic surgeons
verfasst von
Sonal Arora
Nick Sevdalis
Rajesh Aggarwal
Pramudith Sirimanna
Ara Darzi
Roger Kneebone
Publikationsdatum
01.10.2010
Verlag
Springer-Verlag
Erschienen in
Surgical Endoscopy / Ausgabe 10/2010
Print ISSN: 0930-2794
Elektronische ISSN: 1432-2218
DOI
https://doi.org/10.1007/s00464-010-1013-2

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