Comparison of Catheter Ablation in Patients with Paroxysmal Non-valvular Atrial Fibrillation and Heart Failure with Preserved Ejection Fraction.

The efficacy of radiofrequency ablation (RFA) in patients with atrial fibrillation (AF) and heart failure with preserved ejection fraction (HFpEF) has been established, but the efficacy and safety of cryoballoon ablation (CBA) and pulsed field ablation (PFA) remain unclear. This retrospective cohort study included 223 patients with paroxysmal non-valvular AF and HFpEF who underwent their first AF ablation between January 2017 and December 2021 and were divided into RFA (n = 77), CBA (n = 127), and PFA (n = 19) groups. After a mean follow-up of 11.

Intracardiac Echocardiography and Ablation of Atrial Fibrillation in Dextrocardia.

Background: Dextrocardia with atrial fibrillation (AF) complicates radiofrequency ablation treatment.

Methods: A case of successful AF ablation in dextrocardia, guided by intracardiac echocardiography (ICE) and the Carto 3 high-density mapping system, is reported.

Results: ICE-guided transseptal puncture and three-dimensional mapping facilitated successful pulmonary vein isolation (PVI).

When radiation meets the heart: Future of stereotactic body radiation therapy for hypertrophic obstructive cardiomyopathy.

Hypertrophic obstructive cardiomyopathy (HOCM) is a hereditary cardiac disorder characterized primarily by septal hypertrophy and left ventricular outflow tract obstruction. Traditional therapeutic modalities, such as medications and surgeries, do not yield satisfactory outcomes in a subset of patients. The advancements have been made in novel treatments, including new drugs and percutaneous intramyocardial septal radiofrequency ablation (PIMSRA), still need further observation to obtain long-term efficacy and safety.