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Measurement of resident fatigue using rapid number naming
Michael E Ding1, Joyce N Mbekeani2, Yasmina Ahmed3
1Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA.
Journal of the Neurological Sciences
|January 7, 2019
Summary
Sleep deprivation significantly impairs neurocognitive performance in on-call residents, as measured by the King-Devick test (KDT). The impact was more pronounced in surgical residents, highlighting the need for fatigue assessment tools.
Area of Science:
- Neuroscience
- Medical Education
Background:
- Sleep deprivation adversely affects neurocognitive function.
- The King-Devick test (KDT) assesses saccades, visual processing, and cognition through number-reading speed and accuracy.
Purpose of the Study:
- To investigate the impact of sleep deprivation on on-call residents' neurocognitive performance using the KDT.
- To compare the effects of sleep deprivation between surgical and medical residents.
Main Methods:
- A prospective cohort study involving 80 residents.
- The experimental group (n=42) underwent KDT before and after an overnight call shift.
- The control group (n=38) was tested at the start of two consecutive day shifts. Sleep duration, sleepiness (Karolinska Sleepiness Scale), and KDT performance were recorded.
Main Results:
- Residents who experienced overnight call shifts showed a significant increase in KDT completion time (0.54 seconds slower).
- Control residents demonstrated improved KDT performance (2.32 seconds faster) on the second day.
- The detrimental effect of sleep deprivation on KDT performance was more pronounced in surgical residents compared to medical residents.
Conclusions:
- Sleep deprivation is inversely correlated with neurocognitive performance, as indicated by KDT results.
- Surgical residents are more susceptible to the negative effects of sleep deprivation on cognitive function.
- The KDT may serve as a valuable tool for assessing fatigue levels and work capacity after extended shifts.
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