Key result
Catheter ablation of left atrial tachycardia in rheumatic heart disease patients resulted in a similar recurrence rate compared to right atrial tachycardia alone (67% vs 56%, P=0.58).
Why the study?
What are the substrate characteristics and ablation outcomes of left atrial tachycardia in patients with rheumatic mitral valve disease compared to right atrial tachycardia?
Population
27 patients with rheumatic heart disease and atrial tachycardia post-surgical valve replacement
Comparison
Catheter ablation vs Patients with right atrial tachycardia alone
Design
Cohort
Follow-up
mean 27.4 ± 7.9 months
Authors
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Ablation of left AT shows comparable recurrence to right AT in rheumatic disease; leaves open optimal strategies pending larger prospective data.
Cohort (n=27)
What are the substrate characteristics and ablation outcomes of left atrial tachycardia in patients with rheumatic mitral valve disease compared to right atrial tachycardia?
Absolute Event Rate: 67% vs 56%
p-value: p=0.58
Catheter ablation of left atrial tachycardia in rheumatic heart disease patients post-mitral valve replacement is feasible with high acute success, but late development of atrial fibrillation is common.
Chen et al. (2017) conducted a cohort in Rheumatic heart disease with atrial tachycardia (n=27). Catheter ablation vs. Right atrial tachycardia ablation was evaluated on Recurrence rate (p=0.58). Catheter ablation of left atrial tachycardia in rheumatic heart disease patients resulted in a similar recurrence rate compared to right atrial tachycardia alone (67% vs 56%, P=0.58).
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