Central and Peripheral Blood Pressure in Treatment of Obstructive Sleep Apnea.

Approximately 20 patients with hypertension and moderate to severe OSA are treated with CPAP 3 months to examine the treatment effect on blood pressure throughout the day, but especially nocturnal, renal treatment of salt and water, and quality of life. Before and after 3 months of CPAP treatment is made central and peripheral 24-h ambulatory blood pressure monitoring, 24-h urine collection and blood samples.