[Circumferential pulmonary vein with additional linear ablation for persistent and permanent atrial]

Area of Science:

• Electrophysiology
• Cardiology
• Medical Devices

Context:

• Persistent and permanent atrial fibrillation (AF) pose significant challenges in cardiovascular medicine.
• Current treatment strategies for AF require continuous evaluation for improved efficacy and safety.
• Pulmonary vein isolation (PVI) is a cornerstone of AF ablation therapy.

Purpose:

• To evaluate the safety and effectiveness of circumferential pulmonary vein ablation combined with linear lesions for treating persistent and permanent AF.
• To identify clinical and echocardiographic predictors associated with AF recurrence after ablation.

Summary:

• A study of 127 patients undergoing circumferential pulmonary vein with additional linear ablation for persistent/permanent AF showed a 68.5% success rate and 31.5% recurrence rate over a mean 9-month follow-up.
• Cardiac function remained stable post-ablation, though atrial tachyarrhythmias and premature beats increased. The primary complication was ecchymoma (2.4%).
• Female gender and left atrium enlargement were identified as significant risk factors for AF recurrence (P < 0.05).

Impact:

• This study provides valuable insights into the efficacy and safety profile of a specific ablation strategy for complex AF.
• Identifying recurrence predictors can help tailor patient selection and post-procedural management.
• The findings contribute to the ongoing optimization of catheter ablation techniques for atrial fibrillation.