NCT03784560

Effects of Partial Sleep Deprivation on Cognitive Function of Anesthesiologists

Effects of Partial Sleep Deprivation Following Night Shift on Cognitive Functions of Egyptians Anesthesiologists as a Representative of Developing Countries; Prospective Observational Study

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 50 (actual)
• Sponsor: Cairo University · Academic / Other
• Sex: All
• Age: 25 Years – 30 Years
• Healthy volunteers: —

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.

Conditions

• Cognitive Dysfunction
• Sleep Deprivation

Interventions

Type	Name	Description
OTHER	The Psychomotor Vigilance Task (PVT)	PVT has emerged as one of the most widely used tools to assess vigilant attention. Vigilance can be defined as sustained attention and tonic alertness. In sleep deprived individuals, vigilance is the component of cognition that is most consistently and dramatically affected. The PVT is a reaction-time test that allows the collection of a large amount of data in a relatively short period of time. These characteristics increase the sensitivity of the test to detect even small changes in vigilant attention, which can wax and wane within seconds.
OTHER	Epworth Sleepiness Scale	Epworth Sleepiness Scale a set of questions that assess excessive daytime sleepiness during professional activities and vacations. This scale was designed to assess the efficiency of sleep apnea treatments. It is also used for the subjective sleepiness assessment based on the likelihood of falling asleep in different everyday life situations. This results in an overall score.
OTHER	Karolinska sleeping scale	The KSS is assumed to be an ordinal scale with a unitary structure. KSS scores may require standardization to control for differences between subjects. The changes observed in the EEG/EOG with drowsiness do not usually appear until KSS scores reach 7 and higher. Lower KSS scores (\<5) may reflect differences in the subjective awareness of fatigue as much, or more than, levels of drowsiness. Higher KSS scores (7+) may refer more specifically to the state of drowsiness because the subject may then have experienced involuntary dozing behavior, with "lapsing" episodes and brief loss of awareness of the here-and-now, followed by arousal and the return of awareness, including some awareness of recently having dozed off
OTHER	Trail making test	Most variants of this test, which was apparently introduced in 1938 by Partington (Partington \& Leiter, 1949), have at least two conditions. In condition A the participant is to draw lines to connect circled numbers in a numerical sequence (i.e., 1-2-3, etc.) as rapidly as possible. In condition B the participant is to draw lines to connect circled numbers and letters in an alternating numeric and alphabetic sequence (i.e., 1-A-2-B, etc.) as rapidly as possible.

Timeline

• Start date: 2019-01-02
• Primary completion: 2019-05-28
• Completion: 2019-06-28
• First posted: 2018-12-24
• Last updated: 2019-12-03

Locations

1 site across 1 country: Egypt