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| Content Provider | PubMed Central |
|---|---|
| Author | Baguet, Jean-philippe Marie, Nadra Gilles, Barone-rochette Olivier, Ormezzano Pierre, Hélène Pépin, Jean-louis |
| Abstract | Obstructive sleep apnea (OSA) is associated with high cardiovascular morbidity and mortality. Recent studies have shown that it is associated with atherosclerosis and left ventricular dysfunction markers. The aim of this study was to assess the cardiovascular effects of OSA depending on its severity, in patients without clinically diagnosed cardiovascular disease. One hundred thirty newly diagnosed, nondiabetic OSA patients (mean age 49 ± 10 years), without vasoactive treatment were included. They underwent clinical and ambulatory blood pressure measurements, echocardiography, carotid ultrasound examination, and a carotid–femoral pulse wave velocity (PWV) measurement. Seventy-five percent of the subjects were hypertensive according to the clinical or ambulatory measurement. More patients with the most severe forms (respiratory disturbance index >37/hour) had a nondipper profile (52% vs 34%; P = 0.025) and their left ventricular mass was higher (40 ± 7 vs 36 ± 8 g/m, p = 0.014). This last parameter was independently and inversely associated with mean nocturnal oxygen saturation (P = 0.004). PWV and carotid intima-media thickness did not differ between one OSA severity group to another, but the prevalence of carotid hypertrophy was higher when mean SaO2 was below 93.5% (29.5 vs 16%; P = 0.05). Our study shows that in OSA patients without clinically diagnosed cardiovascular disease, there is a significant left ventricular and arterial effect, which is even more marked when OSA is severe. |
| Ending Page | 1073 |
| Starting Page | 1063 |
| File Format | |
| ISSN | 11782048 |
| e-ISSN | 11782048 |
| Journal | Vascular Health and Risk Management |
| Volume Number | 5 |
| Language | English |
| Publisher | Dove Medical Press |
| Publisher Date | 2009-01-01 |
| Access Restriction | Open |
| Rights Holder | Dove Medical Press |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
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