[Circadian variability of rhythm disorders].
Cardiac arrhythmias exhibit also a circadian variability. It is impressingly apparent in sustained ventricular tachycardia and sudden cardiac death. Adrenergic stimulation during morning hours, a physiologic event for the transition from nocturnal to diurnal activity, appears to be an important arrhythmogenic factor (25). The results of the BHAT-study show that beta blocking agents may substantially reduce the risk for sudden cardiac death during morning hours. This notion should thus be considered in treating patients at risk.
Division de cardiologie, Centre hospitalier universitaire vaudois (CHUV), Lausanne.
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D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D005117:Cardiac Complexes, Premature / Q000503:physiopathology; D002940:Circadian Rhythm; D016757:Death, Sudden, Cardiac; D006801:Humans; D013610:Tachycardia / Q000503:physiopathology
Die zirkadiane Variabilität von Rhythmusstörungen.