Central sleep apnea

Central sleep apnea

Cheyne-Stokes breathing: polysomnography demonstrating the characteristic waxing and waning of ventilation separated by central apneas (seen best in the nasal pressure transducer signal [Nasal P] and the abdominal [Abd], chest [Chest], and Sum respiratory impedance traces), resulting in almost sinusoidal desaturations in oxyhemoglobin saturation. Cycle duration between events is 75 seconds; ECG demonstrates atrial fibrillation, both characteristic of a patient with advanced heart failure

Sleep-related breathing disorders. In: Krahn L, Silber M, Morgenthaler T. Atlas of sleep medicine. New York. Informa Healthcare, 2011. By permission of Mayo Foundation for Medical Education and Research. All rights reserved

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