The purpose of this study is to evaluate the effects of CPAP treatment on airway and systemic inflammation in obstructive sleep apnea.
Obstructive sleep apnea (OSA) is characterised by repetitive episodes of upper airway obstruction during sleep. Systemic and airway inflammation has been recently shown to be associated with OSA and is hypothesized to contribute to the clinical manifestation and the complications of OSA patients. Continuous positive airway pressure (CPAP) is a first-line treatment for OSA and improves diurnal and nocturnal symptoms. However, the effectiveness of CPAP in reversing airway inflammation is less compelling in comparison to systemic inflammation. This study will assess NO in exhaled breath, inflammatory biomarkers in induced sputum and blood of OSA patients and other clinical measurements before and after 3 months of CPAP treatment.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
43
maintains upper airway patency and minimizes the obstructive events
Kyoto University Graduate School of Medicine
Kyoto, Kyoto, Japan
Inflammatory biomarkers in induced sputum and blood. Cell counts in induced sputum.
Time frame: 3 months
NO in exhaled breath
Time frame: 3 months
Airway resistance
Time frame: 3 months
PSG measurement(AHI,etc.)
Time frame: 3 months
Quality of Life
Time frame: 3 months
Psychological status
Time frame: 3 months
Sleep quality
Time frame: 3 months
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