engleski

The impact of sleep deprivation on the staff anesthesiologists during in-hospital 24 hour service

Background and Goal of the Study: Fatigue caused by sleep loss and circadian rhythm disruption degrades performance and reduce many aspects of human capability. The aim of this study was to find out the possible influence of sleep deprivation on anesthesiologist complex and simple reaction time, blood pressure (BP) and hearth rate (HR) in surgical emergency service during 24 hour in-hospital service (call). Materials and Methods: Following the Medical Ethics Committee approval and informed consent, 29 staff anesthesiologists (11 women), 35-65 years of age, BMI 26.9± ; 2.9 (mean± ; SD), taking no medications, non-smokers and with normal blood pressure were tested during on call. Psychological testing was performed with Complex Reactinometer Drenovac (CRD), a computer based system, in 8 intervals during 24 hours. HR and BP were continuously monitored. Participants were registering their total sleep time during on call. Control values were obtained in a regular 8 hour day shift at 8 a.m. and 9 p.m., a few days before or after 24h shift. ANOVA, χ 2 and t tests were used for statistical analysis ; p<0.05 was considered statistically significant. Results: During on call the total sleep time was 4.9± ; 1.0h (mean, SD ; vs. 7.4± ; 2.4 during control), reaction time significantly increased during tested intervals. There were 4 anesthesiologists with systolic blood pressure fall of 10% or more (“ dippers” ) vs. 12 “ dippers” in control (p<0.05). Conclusions: Sleep deprivation during the call had impact on anesthesiologist’ s reaction times that may have influence on patient’ s safety. The reduced number of dippers during sleep while on 24 hours shift suggests increased stress for an on call anesthesiologist.

sleep deprivation; shift work

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