Sleep-disordered Breathing and Cardiovascular Disease
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Résumé
RATIONALE: Epidemiologic studies on the consequences of sleep-disordered breathing invariably use the apnea-hypopnea index as the primary measure of disease severity. Although hypopneas constitute a majority of disordered breathing events, significant controversy remains about the best criteria used to define these events. OBJECTIVES: The current investigation sought to assess the most appropriate definition for hypopneas that would be best correlated with cardiovascular disease. METHODS: A community sample of middle-aged and older adults was recruited as part of the Sleep Heart Health Study. Full-montage polysomnography was conducted and hypopneas were defined using different thresholds of oxyhemoglobin desaturation with and without arousals. Prevalent cardiovascular disease was assessed based on self-report. Logistic regression analysis was used to characterize the independent association between the hypopnea index and prevalent cardiovascular disease. MEASUREMENTS AND MAIN RESULTS: Using a sample of 6,106 adults with complete data on cardiovascular disease status and polysomnography, the current study found that hypopneas associated with an oxyhemoglobin desaturation of 4% or more were associated with prevalent cardiovascular disease independent of confounding covariates. The adjusted prevalent odds ratios for quartiles of the hypopnea index using a 4% desaturation criterion were as follows: 1.00 (<1.10 events/h), 1.10 (1.01-3.20 events/h), 1.33 (3.21-7.69 events/h), and 1.41 (>7.69 events/h). Hypopnea measures based on less than 4% oxyhemoglobin desaturation or presence of arousals showed no association with cardiovascular disease. CONCLUSIONS: Hypopneas comprise a significant component of sleep-disordered breathing in the general community. By varying the criteria for defining hypopneas, this study demonstrates that hypopneas with a desaturation of at least 4% are independently associated with cardiovascular disease. In contrast, no association was observed between cardiovascular disease and hypopneas associated with milder desaturations or arousals.
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La notice
- Revue
- American Journal of Respiratory and Critical Care Medicine
- Thématique
- Obstructive Sleep Apnea Research
- Domaine
- Medicine
- Établissements canadiens
- —
- Organismes subventionnaires
- Case Western Reserve UniversityUniversity of WashingtonYork UniversityJohns Hopkins UniversityNational Heart, Lung, and Blood InstituteUniversity of California, DavisUniversity of Minnesota
- Mots-clés
- MedicinePolysomnographyApnea–hypopnea indexConfoundingOdds ratioQuartileDiseaseLogistic regressionHypopneaSleep apneaCardiologyInternal medicinePhysical therapyApneaConfidence interval
- Résumé présent dans OpenAlex
- oui