Key result
Muscular connections between the right pulmonary vein antrum and the right atrium were frequently observed in an autopsy study.
Why the study?
Pulmonary vein isolation for AF occasionally fails, requiring additional radiofrequency ablation inside the isolation line in some patients.
Design
Autopsy study
Authors
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May inform right pulmonary vein isolation strategies; leaves open clinical relevance and in vivo confirmation.
Observational
The anatomical identification of a muscular connection between the right pulmonary vein antrum and the right atrium may explain why pulmonary vein isolation occasionally fails during atrial fibrillation ablation.
Miyazaki et al. (2020) conducted an observational in Atrial fibrillation. Interatrial connection (RPVA connection) was evaluated on Presence of muscular connections between the left and right atrium. Muscular connections between the right pulmonary vein antrum and the right atrium were frequently observed in an autopsy study.
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