VENTRICULAR PARASYSTOLIC TACHYCARDIA

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Abstract
Eleven cases of ventricular parasystolic tachycardia have been described: 9 patients showed evidence of organic heart disease and/or cardiomegaly and the 2 youngest failed to show signs of cardiac involvement. The ectopic rate varied between 70 and 140 a minute in parasystolic tachycardia. One patient showed a very unusual triple tachycardia, the etiology of which was considered to be digitalis intoxication. Of the 11 patients, 7 had at least one myocardial infarction. In our experience the relatively slow ventricular tachycardias almost always originated from a parasystolic focus. Further follow-up study will be necessary to investigate the clinical significance of the occurrence of slow ventricular parasystolic tachycardia in young and otherwise healthy patients.