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Utilization and complications of catheter ablation for atrial fibrillation in patients with hypertrophic cardiomyopathy

Journal of the American Heart Association Jul 10, 2020

Rozen G, Elbaz‐Greener G, Marai I, et al. - Researchers used data from the US National Inpatient Sample to determine the utilization as well as real‐world safety of catheter ablation for treating atrial fibrillation (AF) in patients encountering hypertrophic cardiomyopathy (HCM). This study involved 1,563 catheter ablation cases in patients with HCM. Study sample had a median age of 62, 832 (53.2%) were men, and 1,150 (73.6%) were white. In patients with HCM, doubling of the average annual volume of AF ablations was reported between the early (2003–2008) and the later (2009–2015) study period (79–156). In‐hospital death rate of 1% was reported. Female gender, diabetes mellitus and obesity were identified as independent predictors of complications. Although findings revealed that procedural complications have declined to some extent over the years, still, a relatively high periprocedural morbidity and even mortality was reported in correlation with catheter ablation for AF in patients with HCM. This highlights that careful clinical consideration is crucial in the referral of patients with HCM for an AF ablation.

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