Why the study?
Active esophageal cooling during RF ablation for AF is increasingly used to reduce injury, with randomized data showing trends toward increased freedom from AF, but comparisons of 1-year arrhythmia recurrence against LET monitoring were needed.
Does active esophageal cooling improve freedom from atrial fibrillation in patients undergoing left atrial radiofrequency ablation compared to traditional luminal esophageal temperature monitoring?
Comparison
Active esophageal cooling vs traditional LET monitoring
Design
Multicenter retrospective cohort study
Follow-up
1 year
Authors
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Active cooling was associated with higher 1-year AF freedom; leaves open confirmation in randomized trials before changing practice.
Does active esophageal cooling improve freedom from atrial fibrillation in patients undergoing left atrial radiofrequency ablation compared to traditional luminal esophageal temperature monitoring?
Active esophageal cooling during left atrial radiofrequency ablation for atrial fibrillation is associated with a significantly higher rate of freedom from arrhythmia at 1 year compared to traditional temperature monitoring.
Joseph et al. (2023) studied this question.