목적: Pathology of the ENT organs such as chronic rhinosinusitis has great impact in OSAS pathogenesis. However, there is not enough data showing dependence between snoring and OSAS and character and the prevalence of the inflammatory process in the nasal cavity and nasal sinuses. 방법:Examination underwent 60 male and female patients in age group from 24 till 68 years having chronic rhinosinusitis. Diagnostic work-up included complaints and history analysis, endoscopy of the nose, anterior rhinomanometry and examination of the CT scans of the nose and sinuses, all patients answered questionnaire (Vane form and Epworth scale were used). During sleep patients underwent respiratory monitoring with pulse oximetry. All patients were divided into groups in dependence of the disorder type. 결과:Apnea/hypoapnea index was higher in patients with significant impairment of the intranasal structures and sinuses. In isolated sinuses diseases apnea/hypoapnea index was minimal or absent. 결론:Prevalence and character of the inflammatory process in the nose and sinuses affect intensity of snoring and OSAS. Profound examination of the patients with chronic rhinosinusitis can reveal an early sleep disturbance.