Document Detail


The effects of nasal continuous positive airway pressure on vascular functions and serum cardiovascular risk factors in obstructive sleep apnea syndrome.
MedLine Citation:
PMID:  20084550     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
PURPOSE: We investigated whether the nasal continuous positive airway pressure (nCPAP) could have impacts on impaired vascular functions and serum cardiovascular risk factors in obstructive sleep apnea syndrome (OSAS).
METHODS: We enrolled 25 OSAS patients of moderate to severe degree. After polysomnography, carotid-femoral pulse wave velocity (cfPWV) and flow-mediated dilation (FMD) were measured. Also, serum levels of C-reactive protein (CRP), total cholesterol, triglyceride, high-density lipoprotein (HDL) cholesterol, glucose, and insulin were measured. After nCPAP treatment (mean duration, 138.7 ± 42.6 days), these tests were performed again.
RESULTS: The mean apnea hypopnea index prior to nCPAP was 64.9 ± 20.0/h, which decreased to 4.1 ± 2.0/h with nCPAP (p < 0.001). After nCPAP, cfPWV (m/s) decreased from 11.2 ± 4.5 to 9.3 ± 2.1 (p = 0.031), and FMD (%) was improved from 5.52 ± 2.49 to 6.58 ± 2.50 (p = 0.006). Body mass index, serum levels of CRP, total cholesterol, triglyceride, HDL cholesterol, or glucose did not change after nCPAP. Insulin resistance was not improved either.
CONCLUSIONS: The cfPWV and FMD were significantly improved after nCPAP treatment, even though there was no significant change in body weight or serum cardiovascular risk factors. The nCPAP treatment could decrease risks of cardiovascular complications in OSAS patients through improving vascular functions.
Authors:
Seockhoon Chung; In-Young Yoon; Chul Hee Lee; Jeong-Whun Kim
Publication Detail:
Type:  Journal Article     Date:  2010-01-19
Journal Detail:
Title:  Sleep & breathing = Schlaf & Atmung     Volume:  15     ISSN:  1522-1709     ISO Abbreviation:  Sleep Breath     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-05-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9804161     Medline TA:  Sleep Breath     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  71-6     Citation Subset:  IM    
Affiliation:
Department of Psychiatry, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
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