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Effects of a Technical Solution on Stress of Surgical Staff in Operating Theatres.

J. Lehrke,M. Boos,Andreas Cordes,C. Leitsmann,M. Friedrich

Published 2022 in The thoracic and cardiovascular surgeon

ABSTRACT

BACKGROUND  Noise in operating theaters (OT) exceeds safety standards with detrimental effects on the health and performance of OT crews as well as patient safety. One of the reasons for these effects is the stress response to noise, which could be minimized by the Silent Operating Theater Optimisation System (SOTOS), a noise-reductive headset solution. METHODS  This study evaluates the effects of the SOTOS on the stress perceived by OT crew members, operationalized through stress level and exhaustion. Twenty-one heart surgeries and 32 robot-assisted prostatectomies at the University Medical Center Goettingen, Germany were examined. Twenty-six surgeries were conducted with and 27 without the SOTOS. The SOTOS-effect is defined as a more beneficial stress course from before to after surgery, when comparing the experimental group with and control group without SOTOS. FINDINGS  Eighty-one OT workers were investigated. The linear multilevel models revealed significant interactions between treatment and time of measurement on stress level (F[1, 406.66] = 3.62, p = 0.029) and exhaustion (F[1, 397.62] = 13.12, p = 0.00017). Nevertheless, there was no a significant main effect of surgery type on stress level (F[1, 82.69] = 1.00, p = 0.32) or on exhaustion (F[1, 80.61] = 0.58, p = 0.45). Additionally, no significant three-way interaction including surgery type, for stress level (F[1, 406.66] = 0.32, p = 0.29) or exhaustion (F[1, 397.62] = 0.03, p = 0.43), was found. INTERPRETATION  An SOTOS-effect was confirmed: the development of stress over the course of an operation was beneficially modified by the SOTOS. Both surgery types are perceived as similarly stressful, and the staff benefits equally strongly from the intervention in both settings.

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