A‐V‐V‐A response to single atrial premature depolarization in a narrow QRS tachycardia: What is the mechanism?

We present an atypical response to single atrial premature depolarization (APD) in a long RP’ tachycardia. APD advanced the His‐bundle potential immediately after it and resulted in a VA block; however, tachycardia persisted and consequently exhibited an A‐V‐V‐A response. We propose the mechanism fo...

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Detalles Bibliográficos
Autores principales: Yoshimura, Shingo, Nakatani, Yosuke, Kaseno, Kenichi, Nakamura, Kohki, Naito, Shigeto
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2023
Materias:
Spotlights
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10692860/
https://www.ncbi.nlm.nih.gov/pubmed/38045453
http://dx.doi.org/10.1002/joa3.12924
Descripción
Sumario:We present an atypical response to single atrial premature depolarization (APD) in a long RP’ tachycardia. APD advanced the His‐bundle potential immediately after it and resulted in a VA block; however, tachycardia persisted and consequently exhibited an A‐V‐V‐A response. We propose the mechanism for an A‐V‐V‐A response to APD in a long RP' tachycardia.[Image: see text]

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