Central Sleep Apnea Interfering with Adequate Left Ventricular Filling in a Patient with Left Ventricular Assist Device
1Section of Cardiology, Department of Internal Medicine, St. Boniface General Hospital, WRHA Cardiac Sciences Program, University of Manitoba, Winnipeg, MB, Canada; 2Division of Sleep Medicine, Department of Medicine, National Jewish Health, Denver, CO; 3Division of Cardiology, Department of Medicine, University Health Network, Toronto, ON, Canada; 4Division of Cardiac Surgery, Department of Surgery, University Health Network, Toronto, ON, Canada
Central sleep apnea is common in patients with advanced heart failure. Apneic episodes are associated with hypoxemia, hypercapnia, and neurohumoral activation resulting in a rise in pulmonary vascular resistance. This case report describes a patient with a left ventricular assist device implanted for severe heart failure in whom unrecognized central sleep apnea resulted in under-filling of the left ventricle and a reduction in left ventricular assist device inflow.
Schaffer SA; Bercovitch RS; Ross HJ; Rao V. Central Sleep apnea interfering with adequate left ventricular filling in a patient with left ventricular assist device. J Clin Sleep Med 2013;9(2):161–162.
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