Background: This hospital-based study was undertaken to determine the prevalence of obstructive sleep apnea (OSA) in patients with metabolic syndrome. Methods: Consecutive patients with metabolic syndrome were included. After relevant clinical and laboratory work-up, subjects were screened for symptoms of OSA and administered Epworth Sleepiness Scale (ESS). Patients with suggestive symptoms and ESS score of e ”10 underwent polysomnography. Results: Ninety-four patients with metabolic syndrome (53 males, 41 females) were included. Thirty-five (37.2%) patients with high clinical probability of OSA underwent sleep study; of these, 32 had OSA. Thus, the prevalence of OSA was 34% in patients with metabolic syndrome. The values of body mass index and neck circumference were significantly higher in patients with OSA compared to those who had metabolic syndrome alone. Conclusion: Early detection and treatment of OSA in metabolic syndrome can prevent development of systemic consequences due to the combined effect of both diseases.
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