Reverse Remodelling of the Atria After Treatment of Obstructive Sleep Apnoea with Continuous Positive Airway Pressure: Evidence from Electro-mechanical and Endocrine Markers.

Background: Recent studies have suggested a strong association between obstructive sleep apnoea (OSA) and atrial fibrillation (AF). However, the impact of continuous positive airway pressure (CPAP) therapy on reverse atrial remodelling in patients with OSA is poorly understood. We aimed to determine the impact of CPAP therapy on total atrial conduction time measured by PA tissue Doppler imaging (TDI) interval in patients without history of AF.