Key result
High-power 50W ablation cuts procedure times vs 30W and 40W with similar 12-month AF recurrence.
Why the study?
Although high power creates continuous and transmural lesions, most centres still use 25-30 W for 30-40 s for safety reasons, leaving the efficacy and safety of a high-power short-duration strategy to be evaluated.
Does high-power short-duration ablation (50 W) reduce procedure time and maintain efficacy compared to conventional power (30 W or 40 W) in patients undergoing index atrial fibrillation ablation?
RCT (n=150)
randomly assigned
Does high-power short-duration ablation (50 W) reduce procedure time and maintain efficacy compared to conventional power (30 W or 40 W) in patients undergoing index atrial fibrillation ablation?
p-value: p=0.769
High-power short-duration (50 W) radiofrequency ablation for atrial fibrillation significantly reduces procedure and ablation times without compromising safety or 12-month efficacy compared to conventional power settings.
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May shorten AF ablation procedures; leaves open efficacy confirmation versus lower powers in randomized trials.
Shin et al. (2020) conducted an RCT in atrial fibrillation (AF) (n=150). High-power and short-duration (HPSD) ablation vs. Conventional ablation (30 W and 40 W) was evaluated on Atrial fibrillation recurrence at 12 months (p=0.769). High-power short-duration ablation (50 W) significantly reduced procedure and ablation times compared to 30 W and 40 W, with no significant difference in 12-month AF recurrence (P=0.769).
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