This case report provides the first description of 'return ventricular rhythm', a novel mechanism for tachyarrhythmia involving retrograde conduction and ventricular reentry.
May prompt consideration in unexplained tachyarrhythmias; hypothesis-generating and requires prospective validation.
A case study is presented in which the electrocardiographic patterns during tachycardia showed ventricular premature depolarizations with retrograde conduction to the atria probably using a left-sided anomalous pathway and reentry to the ventricles with normal ventricular activation and duplication of the heart rate. This type of tachycardia is being labeled "return ventricular rhythm" and, as far as it is known, this is the first description of its mechanism.
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Pimenta et al. (1990) studied this question.
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