title: [How does sleep deprivation during 24 hours on call duty affect the cognitive performance orthopaedic residents?].
abstract: BACKGROUND
  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.
  
  
  CONCLUSIONS
  Sleep deprivation after 24 hours on call duty affects cognitive performance of orthopaedic residents, increasing the number of errors and omissions.
authors.affiliation: Hospital Italiano de Buenos Aires, Buenos Aires, Argentina. Electronic address: nachoalbergo@hotmail.com.
authors.forename: J I
authors.initials: JI
authors.lastname: Albergo
authors.affiliation: Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
authors.forename: M C
authors.initials: MC
authors.lastname: Fernández
authors.affiliation: Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
authors.forename: L
authors.initials: L
authors.lastname: Zaifrani
authors.affiliation: Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
authors.forename: D H
authors.initials: DH
authors.lastname: Giunta
authors.affiliation: Hospital Churruca-Visca, Buenos Aires, Argentina.
authors.forename: L
authors.initials: L
authors.lastname: Albergo
mesh_terms: D000328:Adult; D001118:Argentina; D002983:Clinical Competence; D003071:Cognition; D005260:Female; D006801:Humans; D007396:Internship and Residency; D008297:Male; D009483:Neuropsychological Tests; D009985:Orthopedics / Q000193:education*; D010820:Physicians / Q000523:psychology*; D012892:Sleep Deprivation / Q000523:psychology*; D013997:Time Factors; D014940:Work Schedule Tolerance / Q000523:psychology*
keywords: Cognitive performance; Funciones cognitivas; Residencia; Residency program; Sleep; Sueño