arguments suggesting that sympathetic drive should be tempered for a better protection against sd come from various observations : transient ischaemia preceding the terminal event , increasing heart rate preceding lethal or life-threatening arrhythmias , persistent arrhythmias inducibility with isoprenaline or exercise when they had apparently been controlled , the positive correlation between the number of premature beats and the sinus rate at holter monitoring and the consistent sinus acceleration before a variety of arrhythmias at holter monitoring .
C0003811
arrhythmias
C0340464
premature beats