[How does sleep deprivation during 24 hours on call duty affect the cognitive performance orthopaedic residents?]

Rev Esp Cir Ortop Traumatol. 2016 Mar-Apr;60(2):113-8. doi: 10.1016/j.recot.2015.11.002. Epub 2015 Dec 28.
[Article in Spanish]


Introduction: Sleep deprivation is usually present in residents during their training program. The purpose of our study was to analyze the cognitive performance of a group of orthopaedic residents before and after 24 hours on call duty.

Methods: We include orthopaedic residents and their cognitive functions were evaluated by the following tests: Continuous Performance Test (CPT 2), Digit Spam (Versión 5), 1 letter Fonologic Fluence y Pasat Test. All the tests were done after a sleeping period at home of at least 6 hours and after being on call (sleeping less than 3 hours).

Results: Nineteen residents were included in the study. The median age was 27 ± 1.89 and 15 were male. The mean hours of sleeping at home was 6.5 (range 6-8) and after on call duty was 1.5 (range 0.5-3). Statistical difference were found in CPT 2 test en terms of correct answers (p=0.007), omissions (p=0.004) and perseverations (p=0.036). No significant differences were found in the other tests.

Conclusion: Sleep deprivation after 24 hours on call duty affects cognitive performance of orthopaedic residents, increasing the number of errors and omissions.

Keywords: Cognitive performance; Funciones cognitivas; Residencia; Residency program; Sleep; Sueño.

MeSH terms

  • Adult
  • Argentina
  • Clinical Competence*
  • Cognition*
  • Female
  • Humans
  • Internship and Residency*
  • Male
  • Neuropsychological Tests
  • Orthopedics / education*
  • Physicians / psychology*
  • Sleep Deprivation / psychology*
  • Time Factors
  • Work Schedule Tolerance / psychology*