Skip to main content
OpenTrials
Completed

NCT Number: NCT02697266

The Effects of Night Call on Intellectual Performance

The purpose of the current proposal will be to examine the clinical performance of both physicians in training as well as experienced faculty in pre and post call situations. Groups will be matched for gender, age, experience and employment duration during regular hours versus immediate post call hour.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Sleep Deprivation Dyssomnias Mental Disorders Nervous System Diseases Neurologic Manifestations Pathological Conditions, Signs and Symptoms Signs and Symptoms Sleep Wake Disorders

Sex eligibility

All sexes

Study type

Observational

Primary location

Nationwide Children's Hospital

Columbus, Ohio, 43205, United States

About this study

This is a prospective study evaluating the reaction time among attending anesthesiologists, and anesthesiology residents who take night shift call and are suffering from sleep deprivation. Investigators plan to examine clinical performance by measuring reaction times using a 10 minute psychomotor vigilance test device on physicians in training as well as experienced physicians in pre and post call situations.

All subjects will be informed of the scope and purpose of the study.

  • Attending Anesthesiologists: Gender, age, years of experience, years of employment at the institution, hours of sleep and circadian rhythm will be taken into effect.
  • Residents/Fellows: Gender, age, years of experience, years of employment at the institution and circadian rhythm will be taken into effect.

All study subjects will be asked to fill a questionnaire regarding demographic data, coping strategy Index.

  • Baseline instruments; including demographics, and coping strategy indicator (CSI), will be administrated.
  • Reaction time, mood and simple cognitive test will be measured at approximately 7 am of a regular day, (when the subject is not on call).
  • Reaction time, mood and simple cognitive test will be measured at approximately 7 am of after a call night.

This proposal attempts to examine the impact of night shift on mood, cognitive and motor task performance in physicians as compared to regular hours.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Staff Attending Anesthesiologist who takes night shift call
  • Anesthesiology residents who take night shift call

Exclusion criteria

  • Staff unwilling to participate

Treatment and study plan

No intervention

Other

This is an observational study.

Primary outcomes

  1. Reaction time

    Time frame: Regular Day and Post-call shifts - Through study completion, an average of one year.

    We plan to measure reaction times via a 10-minute psychomotor vigilance test (PVT, Ambulatory Monitoring Inc., NY) device. The PVT-192 Psychomotor Vigilance Task Monitor is a hand-held, self-contained system used for repetitive reaction time measurements.

  2. Visual Analog Scale

    Time frame: Regular Day and Post-call shifts - Through study completion, an average of one year.

    Subjective sleepiness and alertness (and other parameters) will be measured via the Visual Analog Scale (VAS). This Questionnaire consists of several 100 millimeter lines, each of which is labeled at one end with the words "not at all" and the other end with the word "extremely". Centered under each line are the test adjectives which are as follows: "alert, able to concentrate, " anxious", "energetic", "feel confident", "irritable", "Jittery/nervous", "sleepy", and "talkative". The participants indicate the point on the line, which corresponded to the way they feel along the continuum at the time the test is taken. The score for each item consists of a number of millimeters from the left side of the line to the location at which the participants placed their mark.

  3. Profile of mood states

    Time frame: Regular Day and Post-call shifts - Through study completion, an average of one year.

    Subjective evaluations of mood will be made with the Profile of Mood States (POMS). The POMS is a 65-Item questionnaire which, when scored according to the specific templates, measures affect or mood on scales: 1) Tension-Anxiety, 2) Depression-dejection, 3) anger-hostility, 4) vigor-activity, 5) fatigue-inertia, and 6) confusion-bewilderment. Factor scores on each scale will be analyzed.

Secondary outcomes

  1. Coping Strategy Indicator (CSI):

    Time frame: Regular-shift - Through study completion, an average of one year.

    This is the self-report measure of three fundamental modes of coping that has demonstrated considerable psychometric strength. The CSI first instructs responders to select a recent stressful event from their lives and briefly describe it. Then, responders read a list of 33 specific coping behaviors, indicating the extent to which each was used to deal with the problem. Responders are summed to form three scales: problem solving, seeking social support and avoidance.

Sponsors and collaborators

Lead sponsor

Haleh Saadat

Other

Registry information

Official study title

Individual Coping Strategies After Night Calls: Effects on Performing Clinical and Cognitive Tasks

Important dates

Study start
2014
Primary completion
2016
Study completion
2016
First posted
Mar 3, 2016
Registry last updated
Sep 9, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.