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Sex Differences in the Outcomes of Cryoablation for Atrial Fibrillation

Abstract : BackgroundThe literature data on the outcomes of radiofrequency catheter ablation for atrial fibrillation (AF) in women are contradictory. AimTo determine and compare the outcomes and complications of cryoballoon pulmonary vein isolation (cryo-PVI) in men vs. women, and to identify predictors of atrial tachyarrhythmia (ATa) recurrence. MethodsWe included all consecutive patients having undergone cryo-PVI for the treatment of symptomatic AF in our center since 2012. Peri-operative complications were documented. All patients were prospectively monitored for the recurrence of ATa, and predictors were assessed. ResultsA total of 733 patients were included (550 men (75%) and 183 (25%) women). Paroxysmal AF was recorded in 112 (61%) female patients and 252 male patients (46%; p < 0.001). Female patients were older (p < 0.001) and had a greater symptom burden (p = 0.04). Female patients were more likely to experience complications (p = 0.02). After cryo-PVI for paroxysmal AF, 66% of the female patients and 79% of the male patients were free of ATa at 24 months (p = 0.001). Female sex was the only independent predictive factor for ATa recurrence (hazard ratio [95% confidence interval] = 1.87 [1.28; 2.73]; p = 0.001). After cryo-PVI for non-paroxysmal AF, 37% of the male patients and 39% of the female patients were free of ATa at 36 months (p = 0.73). Female patients were less likely than male patients to undergo repeat ablation after an index cryo-PVI for non-paroxysmal AF (p = 0.019). ConclusionA single cryo-PVI procedure for paroxysmal AF was significantly less successful in female patients than in male patients. Overall, the complication rate was higher in women than in men.
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https://hal-u-picardie.archives-ouvertes.fr/hal-03692570
Contributeur : Louise DESSAIVRE Connectez-vous pour contacter le contributeur
Soumis le : jeudi 9 juin 2022 - 18:19:07
Dernière modification le : vendredi 10 juin 2022 - 14:47:00

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Alexis Hermida, Jacqueline Burtin, Maciej Kubala, Floriane Fay, Pierre-Marc Lallemand, et al.. Sex Differences in the Outcomes of Cryoablation for Atrial Fibrillation. FRONTIERS IN CARDIOVASCULAR MEDICINE, 2022, 9, ⟨10.3389/fcvm.2022.893553⟩. ⟨hal-03692570⟩

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