Cardiac failure, snoring, ventricular arrhythmias and nasal bilevel positive pressure ventilation.

Patients with stable cardiac failure who snore may present sleep hypopnea and cardiac arrhythmias. Nasal continuous positive airway pressure (CPAP) may worsen the disordered breathing. Nasal bilevel positive airway pressure (BiPAP), however, may help alleviate the breathing problem and eliminate sleep-related arrhythmias.