Background: Heart rate variability (HRV) defines the beat to beat variation of heart rate and has been linked to alterations in health and performance. In research on human factors and ergonomics, HRV was studied during shift-work, surgery and medical skills training. However, the role of HRV under high workload circumstances (e.g. emergency medicine or anaesthesia) and its abilities as a correlate of workload remain unknown.
Methods: Electrocardiograms of physicians were obtained during their work as anaesthetists during real cases in the operation theatre, during a simulated critical incident or when providing primary healthcare as emergency physicians. The software tools ARTiiFACT, Kubios HRV and LabView were used to extract heart rate variability metrics from the electrocardiograms.
Results: Non-linear HRV metrics, especially Permutation entropy, are the most valuable parameters for the separation of various workload levels during pre-hospital emergency care. HRV was not linked to performance, sex, and work experience in neither simulated critical incidents nor during the induction of general anaesthesia. Conclusion: The evaluation of anaesthesiologists’ HRV metrics is a promising tool to assess workload in medical environments such as simulated critical incidents and emergency care. Especially non-linear HRV metrics and Permutation Entropy might have a high potential to classify workload levels. In order to avoid patient harm and adverse events, future research needs to focus on the real-time analysis of health care providers’ heart rate variability and the identification of individual thresholds of excessive workload.
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Background: Heart rate variability (HRV) defines the beat to beat variation of heart rate and has been linked to alterations in health and performance. In research on human factors and ergonomics, HRV was studied during shift-work, surgery and medical skills training. However, the role of HRV under high workload circumstances (e.g. emergency medicine or anaesthesia) and its abilities as a correlate of workload remain unknown.
Methods: Electrocardiograms of physicians were obtained during their...
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