Effects of Partial Sleep Deprivation on Cognitive Function of Anesthesiologists

Completed

• Conditions: Cognitive Dysfunction; Sleep Deprivation
• Interventions: Other: The Psychomotor Vigilance Task (PVT); Other: Epworth Sleepiness Scale; Other: Karolinska sleeping scale; Other: Trail making test

• Registration Number: NCT03784560
• Lead Sponsor: Cairo University

Brief Summary

The purpose of this study was to evaluate differences in cognitive functions at baseline and following night shift at a trauma center among faculty anesthesiologists.

Detailed Description

Anesthesiology is one of the few health-care professions that often demands split-second decisions. This is especially true in a trauma setting where the situation in the operating room can change drastically in a few seconds. Anesthesiologists who cover trauma calls overnight are subject to long work shifts and demanding schedules that may adversely affect their performance. In combination with the disruption of circadian rhythm that can occur with night shift work, decline in performance from the long work shifts can lead to errors in judgment.

An anonymous questionnaire included two groups of different items were used. Items of the first group are about the personal data i.e. age, sex, marital status and parenting status, consumption behavior (tea, coffee, carbonated drinks, tobacco, anxiolytics, antidepressants, psychotropic agents and sport), and professional activity (number of extended worked shifts per month, number of weekends worked per month).

Items of the second group are related to the night shift itself i.e. number of cases, and the rest hours during the shift.

Psychomotor Vigilance Task, Karolinska Sleepiness Scale, Epworth Sleepiness Scale and Trail Making Test before and after the shift were performed.

Study Timeline

• Study First Submitted: 2018-12-16
• Study First Submitted QC: 2018-12-19
• Study First Posted: 2018-12-24
• Study Start: 2019-01-02
• Primary Completion: 2019-05-28
• Study Completion: 2019-06-28
• Status Verified: 2019-12
• Last Update Submitted: 2019-12-02
• Last Update Posted: 2019-12-03

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

• Full-time faculty anesthesiologists employed at Kasr El- Ainy Hospital.
• Both genders
• Ages of 25-28 years.
• Varying levels of experience.

Exclusion Criteria

• History of chronic neurological disease.

• History of psychiatric disorders such as:

  • Episode of major depression within the past 2 years.
  • Lifetime history of schizophrenia.
  • Other psychotic illness or bipolar illness.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
study group	Epworth Sleepiness Scale	anesthesia residents with 24 hours working shift
study group	Karolinska sleeping scale	anesthesia residents with 24 hours working shift
study group	Trail making test	anesthesia residents with 24 hours working shift
study group	The Psychomotor Vigilance Task (PVT)	anesthesia residents with 24 hours working shift

Primary Outcome Measures

Name	Time	Method
The Psychomotor Vigilance Task test	24 hours	the participant presses a response button as soon as a visual stimulus appears on the screen. There is standard version of the PVT with duration of 10 min. The shorter version, PVT brief, with duration of 3 minutes have been used in the current study using PEBL 2 software computer program and reaction times (RTs) were displayed to the study participants in milliseconds.

Secondary Outcome Measures

Name	Time	Method
Trail making test	24 hours	The TMT is formed of two parts. In TMT-A, the subject is asked to draw lines sequentially connecting 25 encircled numbers distributed on a paper sheet. In TMT-B except, the subject is asked to alternate between numbers and letters (e.g., 1, A, 2, B, 3, C, etc.). Each part is represented by time in seconds that required to finish the task.
Karolinska sleeping scale	24 hours	self-assessed 9-point Likert scale for subjective assessment of the individual's level of drowsiness at a time. It has word descriptors to describe the scale points from 1= "very alert" to 9= "very sleepy, fighting sleep, an effort to keep awake".
Epworth Sleepiness Scale	at the beginning of the shift, at the end of 24 shift and at the end of the following working day	the subjects are asked to rate on a scale from 0 to 3 their usual probability of dozing off in 8 different situations, with 0= "would never doze" and 3 = "a high chance of dozing". The total ESS score, ranging from 0 to 24, is the sum score of the eight times. Normal day time sleepiness is represented with scores from 0 to 10 detect, while increased levels of excessive daytime sleepiness are represented with scores of 11-24 represent.

Trial Locations

Locations (1)

Anesthesia Department; 🇪🇬 Cairo, Egypt