Accession Number:

ADA207151

Title:

Evaluation of the Sleepy Crewmember: USAFSAM Experience and a Suggested Clinical Approach

Descriptive Note:

Interim rept. Nov 1987-Apr 1988

Corporate Author:

SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TX

Personal Author(s):

Report Date:

1989-03-01

Pagination or Media Count:

6.0

Abstract:

From 1958 to 1986, 27 crewmembers with suspected sleep disorders were referred to the USAF School of Aerospace Medicine. The presenting complaint in most cases was excessive daytime sleepiness EDS. Prior to 1984, evaluations included neurologic and psychiatric testing, screening laboratory studies, and awake and asleep electroencephalography. Polysomnography and sleep latency studies were included after 1984. In the majority of cases, the etiology of the complaint could not be determined. The prevalence of EDS is estimated to be between 0.3 and 4.0 of the adult population. Major causes cited in the world literature include the sleep apnea syndromes, narcolepsy, parasomnias interrupting sleep, hypersomnia secondary to systemic or affective disorders, and essential hypersomnia. Current sleep lab techniques and human leukocyte antigen HLA typing are reported to make the diagnosis in up to 90 of sleep disorders. Evaluation of EDS should begin with a history emphasizing sleep habits, work schedules, daytime naps, and presence of vegetative signs. A sleep diary will allow a more accurate estimate of the quantity of nocturnal sleep. This diary may reveal poor sleep hygiene or insomnia. Polysomnography andor multiple sleep latency determination can then be used to diagnose sleep apnea, parasomnias, and narcolepsy. Reprints.

Subject Categories:

  • Psychology
  • Medicine and Medical Research
  • Stress Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE