Pulsed field vs very high-power short-duration radiofrequency ablation for atrial fibrillation: Results of a multicenter, real-world experience.

Background: Pulsed field ablation (PFA) and very high-power short-duration (vHPSD) radiofrequency ablation are the most recently introduced technologies for atrial fibrillation (AF) ablation. The procedural performance, safety, and effectiveness of PFA vs vHPSD are currently unknown.

Objective: The study aimed to compare PFA with vHPSD for the treatment of paroxysmal or persistent AF.

Highly complicated lead extraction procedure in patient with previous early orthotopic heart transplantation: A first case report.

We report a first case of a highly complicated lead extraction in a young man who previously underwent orthotopic heart transplantation (OHT).Lead extraction in transplanted patients may be a feasible and safe procedure in order to maintain a low infective risk and to preserve alternative vascular access sites.

Optimal left ventricular lead placement for cardiac resynchronization therapy in postmyocardial infarction patients.

Aim: To evaluate at a 12-month follow-up, the clinical and echocardiographic outcomes in postmyocardial infarction (MI) heart failure patients who underwent cardiac resynchronization therapy (CRT) device implantation.

Materials & Methods: A total of 100 patients received a CRT device, and the study population was divided into three groups, according to the site of MI and left ventricular (LV) lead placed downstream of the ischemic area, as evaluated by echocardiography.

Results: At the end of the 12-month follow-up, we reported a general improvement of LV ejection fraction from 28 ± 7% to 35 ± 9% (p < 0.

Radiation Dose is Significantly Reduced by Use of Contact Force Sensing Catheter During Circumferential Pulmonary Vein Isolation.

The creation of a durable radiofrequency (RF) lesion depends on several parameters, including catheter tip electrode size and composition, tip orientation, temperature, RF pulse duration, power, blood flow, and catheter to tissue contact. The development of new contact force (CF) sensor catheters has allowed the measurement of the tip to tissue CF during the RF ablation procedure. Here, we describe the clinical experience obtained using CF catheters for atrial fibrillation ablation, with a specific focus on the impact of CF technology on acute procedural data (procedure and fluoroscopy time).

Clinical and technical determinants of long-term performance of coronary sinus leads.

Objectives: Little is known about coronary sinus lead performance in patients with cardiac resynchronization therapy devices. We evaluated the impact of clinical and technical parameters on coronary sinus lead performance over long-term follow-up.

Methods: From February 1999 to July 2004, 235 patients (181 men; mean age, 68 +/- 9 years; mean left ventricular ejection fraction, 26.