Heart Failure Clinical Trial
Official title:
Sleep Apnea in Heart Failure With Preserved Ejection Fraction - Exercise Capacity and Impact of Positive Airway Pressure Therapy
This is a prospective interventional study to better understand i) the prevalence of Obstructive Sleep Apnea (OSA) in Heart Failure with preserved Ejection Fraction (HFpEF), ii) its hemodynamic correlates, and iii) the impact of intervention with Continuous Positive Airway Pressure (CPAP) on quality of life.
This is a prospective non-randomized observational study which will recruit patients with gold standard HFpEF defined by exercise catheterization or following HF hospitalization. The prevalence of OSA will be determined in all HFpEF patients at baseline using home sleep apnea testing and all patients will complete the Mayo Sleep Questionnaire. Patients with known OSA at baseline will also be included only for the baseline assessment to accurately estimate prevalence of OSA in gold standard diagnosed HFpEF. The subset of initially recruited patients with HFpEF who have newly diagnosed OSA will be offered and initiated on CPAP therapy to treat their underlying OSA. Repeat evaluation after 3 months of CPAP therapy for end point assessment with remote accelerometry (2 weeks prior to study completion), ESS and KCCQ, which will all be identical to baseline measurements. ;
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