Why the study?
What are the electrophysiological differences in the accessory pathway and ventriculoatrial conduction system between WPW patients with and without antidromic reciprocating tachycardia?
What are the electrophysiological differences in the accessory pathway and ventriculoatrial conduction system between WPW patients with and without antidromic reciprocating tachycardia?
Patients with antidromic reciprocating tachycardia have a shorter retrograde ventriculoatrial conduction system effective refractory period and accessory pathway anterograde ERP compared to controls, providing insight into the prerequisites for this arrhythmia.
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Shorter retrograde VA ERP may enable ART in WPW; extends mechanistic insight but remains hypothesis-generating for risk stratification.
Packer et al. (1992) studied this question.
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