Obstructive sleep apnea syndrome is a well recognized cause of excessive sleepiness; however, the relation of sleepiness to mild sleep-disordered breathing.
Respiratory Disturbance Index (RDI) includes apneas and hypopneas, and may also include other respiratory disturbances such as snoring.
The indices commonly used to assess sleep disordered breathing (SDB) are the apnea-hypopnea index (AHI) and the respiratory disturbance index (RDI). Young T, Finn L, Austin D, Peterson A. An epidemiologic study of sleep-disordered breathing symptoms among adolescents. Literature Bookshelf E-Utilities Journals in NCBI Databases MeSH Database NCBI Handbook NCBI Help Manual NCBI News PubMed PubMed Central PMC PubMed Clinical Queries PubMed Health All Literature Resources. Obesity-hypoventilation Respiratory disturbance index pickwickian syndrome. Predisposing factors are obesity, congenital or acquired craniofacial and neck defects, menopause, endocrine abnormalities, whereas smoking and alcohol use can precipitate the disorder. Blocked Nose - Snoring & Sleep Apnea