A study in Greece used blood test to determine the cardiovascular risk in 53 newly diagnosed patients with Obstructive Sleep Apnea (OSA) at the start of the study and after 6 months of CPAP therapy. It was found that patients with good compliance of CPAP therapy showed significant improvement in most cardiovascular risk factors, while those with poor CPAP compliance showed improvement only in one risk factor and those who did not use CPAP did not show any improvement in their risk status. The results suggest that continuous use of CPAP may reduce the risk of getting cardiovascular disease in OSA.

Chest: Sep. 2007 vol.132 (3) 3 843-851

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