British research suggests that continuous positive airway pressure (CPAP) therapy appears to improve structural and functional changes in left ventricular (LV) function that result from moderate-to-severe obstructive sleep apnea (OSA). The study noted that CPAP therapy resulted in a reduction of posterior wall thickness, and an improvement in LV ejection fraction, systolic velocity, and diastolic LV impairment parameters among patients with OSA.

Abstract: Circulation: Heart Failure, March  2012.

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