[Conduction disorders in Cheyne-Stokes respiration caused by cardiac insufficiency]

This report describes a case of Cheyne-Stokes respiration linked to heart failure, with periodic disturbances of atrioventricular conduction during the augmentation phase of the tidal volume. The circulatory retardation caused by heart failure induced a phase lag of the negative retroaction system and secondarily an oscillation in the respiratory command. The conduction disturbances resulted from vagal stimulation of multifactorial origin. The atrioventricular conduction disturbances were analogous to those seen in other periodic respiratory diseases.