Key result
Ventricular pacing triggers double tachycardias in chronic chagasic cardiomyopathy independent of digitalis toxicity.
Why the study?
Double tachycardias not due to digitalis intoxication in patients with chronic chagasic cardiomyopathy had not been previously characterized electrophysiologically.
Design
Case report with electrophysiological studies including His bundle recordings and burst ventricular pacing
Authors
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Ventricular pacing may induce dual tachycardias in chagasic cardiomyopathy without digitalis; hypothesis-generating case report requiring validation.
Case Report (n=1)
Demonstrates that double tachycardias can be induced by ventricular stimulation in chronic chagasic cardiomyopathy, independent of digitalis toxicity.
Medina‐Ravell et al. (1982) conducted a case report in Chronic chagasic cardiomyopathy (n=1). Ventricular pacing was evaluated on Arrhythmia induction. Ventricular pacing in a patient with chronic chagasic cardiomyopathy initiated double (atrial and ventricular) tachycardias not due to digitalis toxicity.
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