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Int J Cardiol. 1987 Aug;16(2):169-76.

Sudden death during ambulatory Holter monitoring.


Four cases of sudden cardiac death during ambulatory Holter monitoring are described. All had coronary arterial disease. Two patients were on antiarrhythmic drug therapy and both had a prolonged QTc-interval on their resting electrocardiogram. The predominant rhythm was sinus rhythm in all. In one patient, severe bradycardia terminated in asystole. In the remaining 3 patients, ventricular flutter (which was initiated in 2 instances by a short run of polymorphous ventricular tachycardia) degenerated into ventricular fibrillation. The lethal event was triggered once by an early cycle ventricular premature beat and twice by late cycle ventricular premature beats. There was no specific pattern of warning arrhythmias preceding sudden cardiac death. Signs of ischemia/sympathetic overactivity preceding sudden cardiac death were found in 3 patients. Autopsy studies were performed in 2 patients and revealed acute ischemic myocardial damage.

[Indexed for MEDLINE]

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