1. Effect of CPAP on New Endothelial Dysfunction Marker, Endocan, in People With Obstructive Sleep Apnea.
- Author
-
Altintas, Nejat, Mutlu, Levent Cem, Akkoyun, Dursun Cayan, Aydin, Murat, Bilir, Bulent, Yilmaz, Ahsen, and Malhotra, Atul
- Subjects
- *
SLEEP apnea syndrome treatment , *ACADEMIC medical centers , *BIOMARKERS , *BLOOD vessels , *CARDIOVASCULAR diseases risk factors , *CHI-squared test , *STATISTICAL correlation , *ENDOTHELIUM , *LONGITUDINAL method , *MULTIVARIATE analysis , *PROBABILITY theory , *QUESTIONNAIRES , *SLEEP apnea syndromes , *STATISTICS , *T-test (Statistics) , *LOGISTIC regression analysis , *POLYSOMNOGRAPHY , *DATA analysis , *CONTINUOUS positive airway pressure , *DATA analysis software , *DESCRIPTIVE statistics , *CAROTID intima-media thickness , *MANN Whitney U Test , *KRUSKAL-Wallis Test , *DISEASE complications ,CARDIOVASCULAR disease related mortality - Abstract
Obstructive sleep apnea (OSA) is associated with increased cardiovascular (CV) morbidity and mortality. Endocan is a surrogate endothelial dysfunction marker that may be associated with CV risk factors. In this study, we tested whether serum endocan is a biomarker for OSA. Serum endocan levels were measured at baseline in 40 patients with OSA and 40 healthy controls and after 3 months of continuous positive airway pressure (CPAP) treatment in the patients with OSA. All participants were evaluated by full polysomnography. Flow-mediated dilatation (FMD) and carotid intima media thickness (cIMT) were measured in all participants. Endocan levels were significantly higher in patients with OSA than in healthy controls. After adjusting confounders, endocan was a good predictor of OSA. Endocan levels correlated with OSA severity (measured by the apnea–hypopnea index [AHI]). After 3 months of CPAP treatment, endocan levels significantly decreased. Endocan levels were significantly and independently correlated with cIMT and FMD after multiple adjustments. The cIMT and FMD also had significant and independent correlation with AHI. Endocan might be a useful marker for the predisposition of patients with OSA to premature vascular disease. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF