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Obstructive Sleep Apnea, Diagnosed by the Berlin Questionnaire and Association With Coronary Artery Disease Severity



Ghazal A1 ; Roghani F1 ; Sadeghi M2 ; Amra B3 ; Kermanialghoraishi M4
Authors
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Authors Affiliations
  1. 1. Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Cardiac Rehabilitation Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Pulmonology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  4. 4. Hypertension Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran

Source: ARYA Atherosclerosis Published:2015

Abstract

BACKGROUND: Obstructive sleep apnea syndrome (OSAS) is a highly prevalent sleep-related disorder that is associated with increased risk of hypertension (HTN) and coronary heart disease. This study aimed to evaluate the correlation between the OSAS and coronary artery disease (CAD) severity. METHODS: The cross-sectional study was conducted from September 2012 to December 2013. We enrolled 127 patients with chronic stable angina who were referred for coronary angiographic studies in Shahid Chamran and Nour Hospitals in Isfahan, Iran. The Berlin questionnaire (BQ) was used for estimate the probability of OSAS in patients as a low or high probability. Demographic characteristics and metabolic risk factors including diabetes mellitus, HTN, obesity, and smoking also were recorded. The severity of CAD was assessed and compared based on the Gensini score with Mann–Whitney U statistical test. Independent t-test for continuous variables and chi-square test for categorical variables were used. RESULTS: Totally, 65.4% of subjects were considered as high and 34.6% as low probability for OSAS, which 81.1% of them had CAD. There was a significant difference between body mass index, systolic blood pressure, diastolic blood pressure, and ischemic heart disease drug consumption with OSAS probability (P < 0.0500). CAD was accompanied by OSAS significantly (P = 0.0260). The Gensini score was significantly higher in patients with high OSAS probability (100.4 ± 69.1 vs. 65.3 ± 68.9; P = 0.0030). OSAS also increase odds of CAD based on regression analysis (odds ratio, 95% confidence interval = 2.7). CONCLUSION: This study indicates that more severe CAD is associated with high OSAS probability identified by BQ. © 2015 Isfahan University of Medical Sciences(IUMS). All rights reserved.
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