Pulsed Field Ablation Versus High-Power Short-Duration Ablation for Atrial Fibrillation-A Meta-Analysis of...

Area of Science:

• Cardiology
• Medical Technology
• Electrophysiology

Background:

• Pulsed field ablation (PFA) demonstrates efficacy for atrial fibrillation (AF) comparable to existing methods.
• High-power short-duration (HPSD) ablation is an emerging alternative for AF treatment.
• Direct comparisons between PFA and HPSD for AF ablation are limited.

Purpose of the Study:

• To systematically review and meta-analyze studies comparing PFA and HPSD for AF ablation.
• To determine the relative efficacy and safety of PFA versus HPSD.
• To evaluate procedural outcomes including recurrence rates and complication incidence.

Main Methods:

• Systematic review and meta-analysis of three databases.
• Primary outcome: freedom from AF recurrence.
• Landmark analyses with a 3-month cut-off were used to account for blanking periods.

Main Results:

• Eight studies including 1369 patients (PFA: 642; HPSD: 727) were analyzed.
• PFA showed significantly greater freedom from AF recurrence (HR 0.751, p=0.044), particularly after 3 months.
• No significant differences in tamponade or overall complications; PFA had shorter procedure duration, HPSD had shorter fluoroscopy duration.

Conclusions:

• PFA is associated with a lower risk of AF recurrence compared to HPSD, especially in the long term.
• Both PFA and HPSD demonstrate comparable safety profiles regarding major complications.
• Procedural efficiency varies, with PFA reducing procedure time and HPSD reducing fluoroscopy time.