Key result
Cryoballoon ablation of the left pulmonary veins was successfully performed in a patient with right superior vena cava atresia, resulting in no atrial fibrillation recurrence over 2 years.
Why the study?
Congenital cardiac anomalies present technical challenges during cardiac ablation, where multimodality imaging can assist procedural planning.
Case Report (n=1)
No
In patients with persistent left superior vena cava and right SVC atresia, right phrenic nerve pacing may be unachievable, necessitating radiofrequency ablation instead of cryoballoon for right pulmonary vein isolation.
Supports feasibility in right SVC atresia; leaves open generalizability and safety in larger cohorts.
Congenital cardiac anomalies pose a significant challenge during cardiac ablation procedures. Pre-procedural multimodality imaging can help to identify these incidental findings, which may assist with procedural planning to achieve successful outcomes. Here, we describe the technical challenges associated with cryoballoon ablation of the pulmonary veins in a patient with persistent left superior vena cava who was found to have right superior vena cava atresia during the case.
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KHAN et al. (2022) conducted a case report in Paroxysmal atrial fibrillation with persistent left superior vena cava and right superior vena cava atresia (n=1). Cryoballoon ablation was evaluated. Cryoballoon ablation of the left pulmonary veins was successfully performed in a patient with right superior vena cava atresia, resulting in no atrial fibrillation recurrence over 2 years.
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