TY - JOUR
T1 - Measurement of resident fatigue using rapid number naming
AU - Ding, Michael E.
AU - Mbekeani, Joyce N.
AU - Ahmed, Yasmina
AU - Conigliaro, Rosemarie
AU - Delphin, Ellise
AU - Durstenfeld, Anne
AU - Jagannath, Anand
AU - Masters-Israilov, Alina
AU - Milstein, Mark
AU - Rabin, Moriah
AU - Ramachandran, Sujatha
AU - Vlismas, Peter
AU - Yang, David
AU - Heo, Moonseong
AU - Rosenberg, Jamie B.
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2019/2/15
Y1 - 2019/2/15
N2 - Objective: Sleep deprivation has a negative effect on neurocognitive performance. The King-Devick test (KDT), which tests speed and accuracy of number-reading, requires integrity of saccades, visual processing, and cognition. This study investigated effects of sleep deprivation in on-call residents using KDT. Methods: A prospective cohort study was conducted among 80 residents. KDT was performed at the beginning and end of an overnight call shift for the residents in the experimental group. A control group was tested at the beginning of 2 consecutive day shifts. Estimates of hours of sleep, Karolinska Sleepiness Scale (KSS)(1 = extremely alert, 9 = extremely sleepy), and time and accuracy of KDT were recorded. Results: 42 residents were tested before and after overnight call shifts and 38 served as controls. Change in test time differed between the groups, with the experimental group performing 0.54(SD = 4.0) seconds slower after their night on call and the control group performing 2.32(SD = 3.0) seconds faster on the second day, p < 0.001. This difference was larger in surgical compared to medical residents. Conclusions: Sleep deprivation was inversely correlated with neurocognitive performance as measured by KDT, with more effect on surgical than medical residents. Further research could investigate whether this test could help determine fatigue level and ability to continue working after a long shift.
AB - Objective: Sleep deprivation has a negative effect on neurocognitive performance. The King-Devick test (KDT), which tests speed and accuracy of number-reading, requires integrity of saccades, visual processing, and cognition. This study investigated effects of sleep deprivation in on-call residents using KDT. Methods: A prospective cohort study was conducted among 80 residents. KDT was performed at the beginning and end of an overnight call shift for the residents in the experimental group. A control group was tested at the beginning of 2 consecutive day shifts. Estimates of hours of sleep, Karolinska Sleepiness Scale (KSS)(1 = extremely alert, 9 = extremely sleepy), and time and accuracy of KDT were recorded. Results: 42 residents were tested before and after overnight call shifts and 38 served as controls. Change in test time differed between the groups, with the experimental group performing 0.54(SD = 4.0) seconds slower after their night on call and the control group performing 2.32(SD = 3.0) seconds faster on the second day, p < 0.001. This difference was larger in surgical compared to medical residents. Conclusions: Sleep deprivation was inversely correlated with neurocognitive performance as measured by KDT, with more effect on surgical than medical residents. Further research could investigate whether this test could help determine fatigue level and ability to continue working after a long shift.
KW - Eye movement measurements
KW - Fatigue
KW - King-Devick Test
KW - Resident
KW - Saccades
KW - Sleep deprivation
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U2 - 10.1016/j.jns.2018.12.034
DO - 10.1016/j.jns.2018.12.034
M3 - Article
C2 - 30612084
AN - SCOPUS:85059357948
SN - 0022-510X
VL - 397
SP - 117
EP - 122
JO - Journal of the Neurological Sciences
JF - Journal of the Neurological Sciences
ER -