The indications for polysomnography and related procedures

Area of Science:

• Sleep Medicine
• Diagnostic Procedures
• Neurology

Background:

• Comprehensive review of polysomnography (PSG) literature for adult sleep disorder diagnosis.
• Literature search conducted on MEDLINE (January 1966 - April 1996).
• Endorsed by the American Sleep Disorders Association, providing background for practice parameters.

Purpose of the Study:

• To review the literature on polysomnography's role in diagnosing various adult sleep disorders.
• To inform the development of practice parameters for sleep medicine.
• To analyze evidence supporting diagnostic and treatment-related sleep studies.

Main Methods:

• Literature review of peer-reviewed publications.
• Analysis of evidence tables compiled from selected literature.
• Discussion of diagnostic categories including sleep-related breathing disorders, narcolepsy, parasomnias, restless legs syndrome, insomnia, and circadian rhythm disorders.
• Review of alternative sleep-testing procedures and follow-up studies.

Main Results:

• Identified key diagnostic categories and their associated polysomnography applications.
• Evaluated the utility of standard polysomnography and alternative sleep-testing methods.
• Discussed methods for assessing sleep apnea syndrome, including pretest probability estimation.

Conclusions:

• Polysomnography remains a critical tool for diagnosing a wide spectrum of adult sleep disorders.
• The review provides a foundation for evidence-based practice in sleep medicine.
• Highlights the importance of selecting appropriate sleep-testing procedures for accurate diagnosis and patient management.