Risk factors of coronary artery stenosis in the patients with obstructive sleep apnea: a prospective study

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OBJECTIVE: To investigate the prevalence of coronary artery disease and characteristics of coronary artery in patients with obstructive sleep apnoea. METHODS: The prospective study was conducted at the Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, China, from January, 2012, to June, 2015, and comprised consecutive patients with diagnosed obstructive sleep apnoea. High-resolution 320-slice coronary computed tomography was performed in all the patients. Data was evaluated for the presence of coronary lumen narrowing. Demographic, clinical, laboratory, and echocardiographic characteristics were carefully recorded. Logistic regression was used for multivariate analysis of independent risk factors. SPSS 16 was used for data analysis. RESULTS: Of the 277 patients, 186(67.14%) were males. The overallmean age was 55.1±14.3 years. Coronary artery disease was found in 41(14.8%) patients. Prospective Cardiovascular Münster score, uric acid, triglyceride, C-reactive protein, apnoea hypopnoea index, Epworth sleepiness scale values were significantly higher in patients with the disease (p<0.05 each). Higher Prospective Cardiovascular Münster score, C-reactive protein, apnoea hyponoea index levels had a significant ability to reflect the occurrence of coronary artery disease (p<0.05 each). CONCLUSIONS: Coronary heart disease occurrence in obstructive sleep apnoea patients was found to be strongly related to Prospective Cardiovascular Münster score, apnoea hyponoea index and Creactive protein level.

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