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Multiple measures of anesthesia workload during teaching and nonteaching cases
Matthew B Weinger1, Swapna B Reddy, Jason M Slagle
1Department of Anesthesiology, University of California-San Diego and San Diego Center for Patient Safety and Anesthesia Ergonomics Research Laboratory, Veterans Affairs San Diego Healthcare System, 92161-5008, USA. mweinger@ucsd.edu
Anesthesia and Analgesia
|April 24, 2004
Summary
Anesthesia provider workload, including heart rate and stress, increases during anesthetic induction and emergence. Intraoperative teaching further elevates workload and reduces vigilance, highlighting safety considerations during medical education.
Area of Science:
- Anesthesiology
- Medical Education
- Human Factors Engineering
Background:
- Anesthesia provider workload varies across different phases of care.
- The impact of intraoperative teaching on provider workload is not fully understood.
Purpose of the Study:
- To examine anesthesia provider workload during various phases of anesthesia care.
- To compare workload during teaching versus nonteaching cases.
Main Methods:
- Assessed workload using physiological (heart rate), psychological (self/observer ratings), and procedural (response latency, workload density) measures.
- Collected data in real-time during 24 general anesthetics.
Main Results:
- Workload measures (heart rate, psychological scores, density) increased during induction and emergence compared to maintenance.
- Workload density correlated with heart rate and psychological workload in nonteaching cases.
- Teaching cases showed increased workload density and prolonged alarm-light response latency (vigilance) compared to nonteaching cases.
Conclusions:
- Intraoperative teaching increases anesthesia provider workload and may decrease clinical vigilance.
- Multiple workload measures provide a comprehensive understanding of clinical demands.
- Caution is advised when educating during patient care due to increased demands.