Enhanced cardiorespiratory coupling in patients with obstructive sleep apnea following continuous positive airway pressure treatment

Weak cardiorespiratory coupling (CRC) has been suggested in patients with obstructive sleep apnea (OSA), but the effects of continuous positive airway pressure (CPAP) on CRC remain unclear. We investigated the effects of CPAP treatment on CRC in patients with severe OSA to examine possible reversibility of altered CRC.High-resolution electrocardiograms (ECGs) and respiratory signals were simultaneously recorded for 13 never-treated OSA patients...