Outcome of patients with sleep apnea-associated severe bradyarrhythmias after continuous positive airway pressure therapy

Twenty-nine patients in whom severe bradyarrhythmias occurred exclusively d uring obstructive sleep apnea and in whom advanced sinus node disease or at rioventricular conduction system dysfunction had been excluded by invasive electrophysiologic evaluation were prospectively followed on nasal continuo us positive airway pressure. During 54 +/- 10 months follow-up, no syncope and no sudden deaths were observed, suggesting that patients with sleep apn ea-associated bradyarrhythmias and a normal electrophysiologic study appear to have a favorable prognosis with continuous positive airway pressure.