A case of accessory pathway between the coronary sinus musculature and the left ventricle

A 64‐year‐old female underwent catheter ablation of long R‐P' tachycardia. Ventricular pacing exhibited retrograde conduction with an identical atrial activation sequence as during tachycardia because of an accessory pathway (AP) with a long VA conduction. A radiofrequency application within th...

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Detalles Bibliográficos
Autores principales: Takenaka, Sou, Suzuki, Jun, Ueno, Akihiko, Uchiyama, Takashi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6787160/
https://www.ncbi.nlm.nih.gov/pubmed/31624516
http://dx.doi.org/10.1002/joa3.12235
Descripción
Sumario:A 64‐year‐old female underwent catheter ablation of long R‐P' tachycardia. Ventricular pacing exhibited retrograde conduction with an identical atrial activation sequence as during tachycardia because of an accessory pathway (AP) with a long VA conduction. A radiofrequency application within the posterior coronary sinus (CS) could achieve a change of activation pattern from distal‐to‐proximal to proximal‐to‐distal within CS proximal to the ablation site, caused by conduction block of CS musculature (CSM) at the proximal site. This phenomenon could explain that this AP was connected between the CSM and the left ventricle, in site far away from the discrete connection between the left atrium and CSM.

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