Efficacy of expiratory pressure relief in BiPAP autoSV advanced (ASV3) in subjects with congestive heart failure and central apnea

Introduction: Adaptive Servoventilation is a mode of pressure support to treat obstructive and central sleep apnea seen in patients with congestive heart failure. It was the aim to determine the efficacy of ASV3 with an expiratory pressure relief in previously untreated patients with congestive heart failure. Methods: All diagnostic polysomnografies were compared with ASV3 treatment nights. Parameters of interest were respiratory disturbance index (RDI), central apnea index (CAI), Cheyne-Stokes respiration (CSR) index, apnea-hypopnea index (AHI) in REM and non-REM, hypopnea index (HI) and respiratory arousal ind…