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Does simulator-based clinical performance correlate with actual hospital behavior? The effect of extended work hours on patient care provided by medical interns.

Authors
Gordon-JA; Alexander-EK; Lockley-SW; Flynn-Evans-E; Venkatan-SK; Landrigan-CP; Czeisler-CA; Harvard Work Hours, Health, and Safety Group (Boston, Massachusetts)
Source
Acad Med 2010 Oct; 85(10):1583-1588
NIOSHTIC No.
20037753
Abstract
PURPOSE: The correlation between simulator-based medical performance and real-world behavior remains unclear. This study explored whether the effects of extended work hours on clinical performance, as reported in prior hospital-based studies, could be observed in a simulator-based testing environment. METHOD: Intern volunteers reported to the simulator laboratory in a rested state and again in a sleep-deprived state (after a traditional 24- to 30-hour overnight shift [n=17]). A subset also presented after a shortened overnight shift (16 scheduled hours [n=8]). During each laboratory visit, participants managed two critically ill patients. An on-site physician scored each case, as did a blinded rater later watching videotapes of the performances (score=1 [worst] to 8 [best]; average of both cases=session score). RESULTS: Among all participants, the average simulator session score was 6.0 (95% CI: 5.6-6.4) in the rested state and declined to 5.0 (95% CI: 4.6-5.4) after the traditional overnight shift (P<.001). Among those who completed the shortened overnight shift, the average postshift simulator session score was 5.8 (95% CI: 5.0-6.6) compared with 4.3 (95% CI: 3.8-4.9) after a traditional extended shift (P<.001). CONCLUSIONS: In a clinical simulation test, medical interns performed significantly better after working a shortened overnight shift compared with a traditional extended shift. These findings are consistent with real-time hospital studies using the same shift schedule. Such an independent correlation not only confirms the detrimental impact of extended work hours on medical performance but also supports the validity of simulation as a clinical performance assessment tool.
Keywords
Circadian-rhythms; Exposure-assessment; Exposure-levels; Exposure-methods; Health-hazards; Laboratory-testing; Medical-care; Medical-facilities; Medical-personnel; Medical-services; Medical-surveys; Work-operations; Physiological-effects; Physiological-fatigue; Physiological-response; Shift-work; Shift-workers; Sleep-deprivation; Statistical-analysis; Work-analysis; Work-environment; Work-operations; Work-performance; Workplace-studies; Work-practices
Contact
Dr. Gordon, Division of Medical Simulation, Department of Emergency Medicine, Massachusetts General Hospital, Zero Emerson Place, Suite 3B, Boston, MA 02114
CODEN
ACMEEO
Publication Date
20101001
Document Type
Journal Article
Email Address
jgordon3@partners.org
Funding Type
Grant
Fiscal Year
2011
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-007567
Issue of Publication
10
ISSN
1040-2446
Source Name
Academic Medicine: Journal of the Association of American Medical Colleges
State
MA
Performing Organization
Brigham and Women's Hospital
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