Impact of Uncontrolled Hypertension on Atrial Fibrillation Ablation Outcome

JACC. Clinical Electrophysiology
Francesco SantoroAndrea Natale

Abstract

The goal of this study was to evaluate the impact of hypertension on the outcome of atrial fibrillation (AF) ablation. Hypertension is a well-known independent risk factor for incident AF. A total of 531 consecutive patients undergoing AF ablation were enrolled in this study and divided into 3 groups: patients with uncontrolled hypertension despite medical treatment (group I, n = 160), patients with controlled hypertension (group II, n = 192), and patients without hypertension (group III, n = 179). Pulmonary vein (PV) antrum and posterior wall isolation was always performed, and non-PV triggers were identified during isoproterenol infusion. All patients underwent extensive follow-up. Three groups differed in terms of left atrial (LA) size, non-PV triggers, and moderate/severe LA scar. Non-PV triggers were present in 94 (58.8%), 64 (33.3%), and 50 (27.9%) patients in groups I, II, and III, respectively (p < 0.001). After 19 ± 7.7 months of follow-up, 65 (40.6%), 54 (28.1%), and 46 (25.7%) patients in groups I, II, and III had recurrences (log-rank test, p = 0.003). Among patients in group I who underwent additional non-PV trigger ablation, freedom from AF/atrial tachycardia was 69.8%, which was similar to groups II and III proce...Continue Reading

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