Bipolar radiofrequency maze procedure through a transseptal approach

Area of Science:

• Cardiac Surgery
• Electrophysiology
• Minimally Invasive Procedures

Background:

• Atrial fibrillation and other arrhythmias necessitate effective ablation strategies.
• Current ablation techniques may have limitations in achieving complete atrial isolation.

Purpose of the Study:

• To describe and evaluate a novel technique for complete open-heart ablation using bipolar radiofrequency.
• To assess the feasibility, safety, and efficacy of this transseptal approach for left atrial lines.

Main Methods:

• A transseptal incision was utilized for bipolar radiofrequency ablation.
• Left atrial lines were created by accessing the posterior left atrium beneath the right inferior pulmonary vein.
• Twenty-five patients underwent this concomitant ablation technique across three centers.

Main Results:

• The described technique for performing left atrial lines was easily accomplished in all patients.
• No complications directly related to the ablation procedure were observed.
• At an average follow-up of 11 months, 80% of patients remained free from arrhythmias.

Conclusions:

• This transseptal, bipolar radiofrequency ablation technique is a feasible and safe method for achieving complete atrial isolation.
• The procedure shows promising efficacy in long-term arrhythmia freedom.
• This approach offers a potential advancement in surgical ablation for cardiac arrhythmias.