Circadian variation of sudden cardiac death reflects age-related variability in ventricular fibrillation.

BACKGROUND Previous studies report a morning peak in the occurrence of out-of-hospital sudden cardiac death but lack detailed information on underlying arrhythmias. We used the documentation system of the semiautomated defibrillators used by emergency medical technicians to investigate the circadian pattern of defined arrhythmias and the influence of… CONTINUE READING