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Research Article: Improvement in Atrioventricular Conduction Using Cardioneuroablation Performed Immediately after Pulmonary Vein Isolation

Date Published: 2024-03-27

Abstract:
In patients with atrial fibrillation (AF) recurrences after pulmonary vein isolation (PVI), concomitant treatment using anti arrhythmic drugs (AADs) can lead to clinical success. However, patients with atrioventricular (AV) block may not be good candidates for concomitant AAD therapy due to the risk of further worsening of conduction abnormalities. Cardioneuroablation (CNA), as an adjunct to PVI, may offer a solution to this problem. We present a case of a 74-year-old male with paroxysmal AF and first degree AV block in whom CNA following PVI led to PR normalization. The presented case describes an example of CNA utilization in patients with AF undergoing PVI who have concomitant problems with AV conduction and shows that CNA can be sometimes useful in older patients with functional AV block.

Introduction:
Pulmonary vein isolation (PVI) is a cornerstone of atrial fibrillation (AF) ablation; however, in some subgroups, the recurrence rate still remains substantial [1]. In patients with AF recurrences after PVI, a concomitant treatment using antiarrhythmic drugs (AADs) can lead to clinical success [2]. Nevertheless, patients with atrioventricular (AV) block may not be good candidates for accompanying AAD therapy due to the risk of further worsening of conduction abnormalities. Drugs such as propafenone, amiodarone or…

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