Effect of Adaptive Servo Ventilation (ASV) on Survival and Hospital Admissions in Heart Failure (ADVENT-HF)Sleep Apnea (SA) is a disorder that causes pauses in breathing during sleep that expose the heart to oxygen deprivation. It is common in patients with heart failure (HF) where it is associated with increased risk of hospitalizations and death.Recruiting Principal Investigator John A. FleethamBody Locations and Systems Heart Failure, Sleep Apnea SyndromesArea VancouverAge 18 and above