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Related Experiment Videos

The night float paradigm to decrease sleep deprivation: good solution or a new problem?

Anita Cavallo1, M Douglas Ris, Paul Succop

  • 1Department of Pediatrics, Cincinnati Children's Hospital Medical Centre, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA.

Ergonomics
|May 15, 2003
PubMed
Summary
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Physician night float rotations disrupt sleep and increase fatigue, negatively impacting resident well-being and potentially patient safety. Awareness of these effects is crucial for training programs.

Area of Science:

  • Medical Education
  • Sleep Medicine
  • Occupational Health

Background:

  • The night float rotation, a common feature in physician residency training since the late 1980s, involves extended periods of night work.
  • This rotation necessitates an abrupt reversal of residents' natural wake-sleep schedules, potentially impacting their health and performance.

Purpose of the Study:

  • To investigate the effects of the night float rotation on the sleep patterns, mood states, and cognitive performance of pediatric residents.
  • To compare these effects against residents' experiences during standard daytime rotations.

Main Methods:

  • Pediatric residents' sleep diaries were collected daily.
  • Mood (Profile of Mood States) and attention (Conner's Continuous Performance Test) were assessed thrice weekly during both night float and daytime rotations.

Related Experiment Videos

  • Data were analyzed to compare sleep duration, fatigue, vigor, and attention scores between rotation types.

    • Main Results:

    • Residents on night float slept significantly less (6.3 hours) compared to daytime rotations (7.2 hours), despite daytime sleep opportunities.
    • Night float was associated with increased fatigue-inertia scores and decreased vigor-activity scores.
    • While attention scores did not differ significantly, fatigue during night float correlated with increased omission errors and decreased attentiveness.

    Conclusions:

    • The night float rotation negatively impacts resident sleep and mood, characterized by reduced sleep duration and increased fatigue.
    • Despite no significant difference in overall attention, fatigue during night float was linked to specific attentional deficits.
    • Residency programs must acknowledge and mitigate the potential adverse effects of night float rotations on residents and patient safety.