Study population and design
OBSTRUCTIVE SLEEP APNEA, POSITIVE
This study was conducted as a sub-study of the previous trial: The Continuous Positive Airway Pressure Therapy on Left Ventricular Diastolic Function in Patients with Severe Obstructive Sleep Apnea trial was designed to investigate the effects of 3 months of CPAP on LV diastolic function. It was a prospective, single-center, randomized, blinded, sham-controlled trial of parallel groups. The design and primary outcomes of the trial have been previously reported