2012 ©
             Publication
Journal Publication
Title of Article Cardiovascular Performance Following Continuous Positive Airway Pressure in Patients with Severe Obstructive Sleep Apnea 
Date of Acceptance 3 October 2017 
Journal
     Title of Journal Sleep and Hypnosis: A Journal of Clinical Neuroscience and Psychopathology 
     Standard SCOPUS 
     Institute of Journal ejmanager 
     ISBN/ISSN http://dx.doi.org/10.5350/Sleep.Hypn.2017.19.0150 
     Volume  
     Issue  
     Month
     Year of Publication 2017 
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     Abstract ABSTRACT Background: Obstructive sleep apnea (OSA) may lead to decreased exercise capacity. We investigated whether continuous positive airway pressure (CPAP) treatment improved cardiovascular performance in OSA patients. Methods: Forty healthy subjects (control group) and 40 severe OSA patients were recruited. The two groups were matched for age, gender, and body mass index. OSA patients were assigned to CPAP and non-CPAP treatment groups in equal numbers. All subjects underwent cardiopulmonary exercise testing (CPET) using a treadmill and an incremental protocol until symptom limitation (Day 0). CPET was repeated at Day 180 in the CPAP treatment group. Results: OSA patients had lower maximal oxygen consumption (V’O2max) (1666.3 ± 451.3 vs. 1375.6 ± 227.7 ml/min, 28.2 ± 5.5 vs. 18.9 ± 3.8 ml/min/kg) (p < 0.001), higher maximal V’E/V’CO2 (p < 0.01), V’E/V’O2 (p < 0.001), heart rate (HR) reserve (p < 0.001), and blunted HR recovery (HRR) at 1-5 min (p < 0.001) compared to controls. V’O2max was negatively correlated with AHI (R2 = 0.1363, p < 0.05). In the CPAP but not in non-CPAP treatment group, both V’O2max (p < 0.05), HRR (p < 0.001), and HR reserve (p < 0.05) were improved on Day 180 compared to Day 0. Conclusion: Our study demonstrates that CPAP therapy for six months provides clinical benefits by improving cardiovascular performance.  
     Keyword Obstructive sleep apnea, continuous positive airway pressure, cardiopulmonary exercise testing, heart rate recovery 
Author
577070032-5 Mr. KHANAPHAPHON WUTTIUMPORN [Main Author]
Medicine Doctoral Degree

Reviewing Status มีผู้ประเมินอิสระ 
Status ตีพิมพ์แล้ว 
Level of Publication นานาชาติ 
citation false 
Part of thesis true 
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