Background. The prevalence of obstructive sleep apnea (OSA) is high in patients with systemic arterial hypertension (SAH), increasing the risk of mortality and morbidity due to cardiovascular events. Therefore, early diagnosis of OSA, especially severe OSA, in patients with SAH is necessary. Objectives. This study was planned to evaluate the percentage of patients with new diagnosed SAH having OSA, and to describe its clinical, biological, and polysomnography (PSG) characteristics. Method. It was a cross sectional study including diagnosed SAH without associated diseases. PSG with Alice PDx device had been performed for each study subject. All anthropological, clinical, biochemical characteristics and apnea-hyponea index (AHI) had been recorded for analyzing. Results. 62 subjects with SAH had been enrolled, including 10 patients without OSA (16 percent; 50 + or - 7 years), 6 with mild OSA (10 percent; 61 + or - 12 years), 30 with moderate OSA (48 percent; 60 + or - 14), and 16 with severe OSA (26 percent; 61 + or - 13 years). Suggested symptoms of OSA were snoring at night, hyper triglyceridemia, and high abdominal perimeter. There were the significant correlations between these symptoms and AHI (p 0.05, p 0.001, p 0.001). Conclusion. The prevalence of OSA in patients with systemic hypertension is very high and usually associated with snoring at night. Early diagnosis of OSA in patients with SAH is important for accurate treatment.
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