Investigating the role of electroanatomical mapping in single-shot pulsed field catheter ablation.

Introduction: Pulsed field ablation (PFA) is a form of nonthermal energy that has been recently introduced for pulmonary vein isolation (PVI). A multi-electrode pentaspline catheter for delivery of PFA guided by fluoroscopy has become widely available for clinical use.

Methods And Results: In this study, we aimed to assess whether the addition of electroanatomical mapping (EAM) for confirmation of PVI in the acute phase can increase the efficacy of the procedure in terms of arrhythmia recurrences.

Cryoablation versus hybrid radiofrequency with high- and very-high-power short-duration catheter ablation for the treatment of paroxysmal atrial fibrillation.

Background: High-power short-duration (HPSD) and very-high-power short-duration (vHPSD-90 W/4 s) radiofrequency (RF) technology has reduced the procedure time of pulmonary vein isolation (PVI) using RF without compromising the efficacy of the technique. The current study compares the novel technology of HPSD/vHPSD with cryoablation (CRYO) in terms of efficacy, safety, and procedure time in a cohort of symptomatic patients with paroxysmal atrial fibrillation (pAF).

Methods: This is a prospective, non-randomized trial.

Descending aorta to right atrial fistula: Transcatheter embolization of a very rare anomaly with coils.

Key Clinical Message: Descending aorta to right atrial (RA) fistula is a rare and distinct clinical entity mimicking patent ductus arteriosus (PDA) and it may lead to rapid development of pulmonary vascular disease. Correct diagnosis and treatment, especially in the presence of other congenital heart defects, is very important. Interventional management is the treatment of choice.