An Incessant Tachycardia with Alternating QRS Complexes: What Is the Mechanism?

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Cetin M., Ornek E., BAŞTUĞ S., Kara M., Deveci B., Korkmaz A., ...More

Journal of Innovations in Cardiac Rhythm Management, vol.13, no.2, pp.4900-4904, 2022 (Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 13 Issue: 2
  • Publication Date: 2022
  • Doi Number: 10.19102/icrm.2022.130203
  • Journal Name: Journal of Innovations in Cardiac Rhythm Management
  • Journal Indexes: Scopus
  • Page Numbers: pp.4900-4904
  • Keywords: Alternating beats, double exit, fascicular VT, His–Purkinje system, HPS, multiple exits, wide QRS tachycardia
  • Ankara Yıldırım Beyazıt University Affiliated: Yes

Abstract

© 2022 Innovations in Cardiac Rhythm ManagementWe present a patient with ischemic cardiomyopathy who had ventricular tachycardia (VT) with QRS morphology alternans. The electrophysiological findings, in this case, supported the occurrence of antegrade activation of the proximal His–Purkinje system during VT, with the ultimate electrocardiogram morphology dependent on fusion from intramyocardial and His–Purkinje activations.