Intercaval bundle connecting posterosuperior right atrium to right superior pulmonary vein detected during catheter ablation for atrial fibrillation

Baskovski, Emir; Candemir, Başar; Esenboğa, Kerim; Altın, Ali Timuçin; Tutar, Durmuş Eralp

doi:10.14744/anatoljcardiol.2019.06709

Cited by 1 publication

(2 citation statements)

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“…The presence of these fibers poses challenge for right pulmonary vein isolation and underscores the importance of carina ablation. With electro‐anatomical mapping, activation breakthrough within the anterior right pulmonary vein antrum is often observed after pulmonary isolation due to the dominant conduction of these fibers 11,12 . And sometimes, even before pulmonary vein isolation, the inter‐caval bundles can also result in earliest LA activation at the carina of right pulmonary veins under sinus rhythm 13 .…”

Section: Anatomy Of Epicardial Fibers and Interatrial Connectionmentioning

confidence: 99%

“…With electro-anatomical mapping, activation breakthrough within the anterior right pulmonary vein antrum is often observed after pulmonary isolation due to the dominant conduction of these fibers. 11,12 And sometimes, even before pulmonary vein isolation, the inter-caval bundles can also result in earliest LA activation at the carina of right pulmonary veins under sinus rhythm. 13 Patel et al first reported that a inter-caval bundle may serve as the critical isthmus for the bi-atrial reentry, where both right inferior pulmonary vein (entrance) and RA (exit) entrainment demonstrated concealed entrainment and short post pacing interval, but the former had significantly longer stimulus to P interval.…”

Section: Fossa Ovalis (Fo) and Transseptal Fibersmentioning

confidence: 99%

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Epicardial connections and bi‐atrial tachycardias: From anatomy to clinical practice

Lai

Sang

et al. 2023

Pacing Clinical Electrophis

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Bi‐atrial tachycardia (BiAT) is not rare after extensive atrial ablation or cardiac surgery. The complexity of bi‐atrial reentrant circuits poses a great challenge for clinical practice. With recent advances in mapping technologies, we are now able to characterize atrial activation in detail. However, given the involvement of both atria and multiple epicardial conductions, endocardial mapping for BiATs is not easy to understand. Knowledge of the atrial myocardial architecture is the foundation for the clinical management of BiATs; as it is required to understand the possible mechanism of the tachycardia and identify the optimal target of ablation. In this review we summarize current knowledge about the anatomy of interatrial connections as well as other epicardial fibers and discuss the interpretation of electrophysiological findings and ablation strategies for BiATs.

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Section: Anatomy Of Epicardial Fibers and Interatrial Connectionmentioning

confidence: 99%