Despite its prevalence in patients with atrial fibrillation, sleep apnea is often undiagnosed in this patient population, researchers found.

The study, published in JACC: Clinical Electrophysiology, also showed that standard questionnaires to identify patients with sleep apnea have limited predictive value in patients with AF. Once patients with AF are identified as having sleep apnea, they often have improved adherence to long-term continuous positive airway pressure ventilators.

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