Pulsed-Field-Ablation for the Treatment of Atrial Fibrillation in Patients with Congenital Anomalies of Cardiac Veins.

Castiglione, Alessandro; Küffer, Thomas; Gräni, Christoph; Servatius, Helge; Reichlin, Tobias; Roten, Laurent (2023). Pulsed-Field-Ablation for the Treatment of Atrial Fibrillation in Patients with Congenital Anomalies of Cardiac Veins. Journal of cardiovascular electrophysiology, 34(5), pp. 1183-1191. Wiley-Blackwell 10.1111/jce.15900

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INTRODUCTION

Anomalous cardiac veins are not rare and pulmonary vein (PV) isolation for atrial fibrillation (AF) treatment should include these veins. Pulsed-field ablation (PFA) is a novel technology for AF ablation with excellent efficacy and safety profile. In this case series, we describe our first experience of isolation of anomalous cardiac veins using PFA in patients with AF.

METHODS

We report a series of patients with congenital anomalies of the cardiac veins and AF, treated with PFA. All patients underwent cardiac computed tomography for procedural planning.

RESULTS

We included five patients (4 males). Anomalous cardiac veins included a connection of a left common ostium to the coronary sinus, a partial and a complete drainage of the right superior PV into the superior vena cava (SVC) with and without additional atrial septal defect, a persistent left SVC and an anomalous posterior PV. All anomalous PVs were isolated using PFA. No phrenic nerve palsy or other complications occurred. PFA of an abnormal right superior PV draining into the distal SVC was possible without affecting the sinus node. After a median of four months, four patients were free of recurrence. One patient had recurrent AF and perimitral reentry tachycardia, probably facilitated by PFA in the mitral isthmus region during isolation of an anomalous connection of the left common ostium to the coronary sinus.

CONCLUSIONS

Using systematic pre-procedural imaging and 3D-electroanatomic mapping, the currently available PFA system seems well suited, efficient and versatile for the treatment of AF in patients with anomalous cardiac veins. This article is protected by copyright. All rights reserved.

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