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Nodo- and fasciculoventricular pathways: Electrophysiological features and a proposed diagnostic algorithm for preexcitation variants

      Fasciculoventricular and nodoventricular pathways (FVP and NVP) are uncommon preexcitation variants that can be misleading during electrophysiology studies (EPSs), and differentiating them could be challenging.
      • Sternick E.B.
      • Gerken L.M.
      • Vrandecic M.O.
      • Wellens H.J.
      Fasciculoventricular pathways: clinical and electrophysiologic characteristics of a variant of preexcitation.
      • Lau E.W.
      Infraatrial supraventricular tachycardias: mechanisms, diagnosis, and management.
      • Hoffmayer K.S.
      • Lee B.K.
      • Vedantham V.
      • Bhimani A.A.
      • Cakulev I.T.
      • Mackall J.A.
      • Sahadevan J.
      • Rho R.W.
      • Scheinman M.M.
      Variable clinical features and ablation of manifest nodofascicular/ventricular pathways.
      In this article, we describe 2 representative cases and then we present various electrophysiological features and phenomenon encountered in patients with these particular accessory pathways (APs).

      Abbreviations:

      AP (accessory pathway), AV (atrioventricular), EPS (electrophysiology study), FVP (fasciculoventricular pathway), HB (His bundle), NVP (nodoventricular pathway), PAS (programmed atrial stimulation), RBBB (right bundle branch block)

      Keywords

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