Key result
A 1-cm/s increase in atrial fibrillatory wall motion velocity assessed by tissue velocity imaging was associated with a reduced risk of atrial fibrillation recurrence after catheter ablation (HR 0.573).
Why the study?
Does tissue velocity imaging of atrial fibrillatory wall motion predict AF recurrence in patients with drug-refractory AF undergoing catheter ablation?
Cohort (n=80)
No
Does tissue velocity imaging of atrial fibrillatory wall motion predict AF recurrence in patients with drug-refractory AF undergoing catheter ablation?
Hazard Ratio: 0.573 (95% CI 0.337–0.93)
p-value: p=0.0234
Tissue velocity imaging of atrial fibrillatory wall motion provides a non-invasive measure of atrial remodeling that independently predicts AF recurrence after catheter ablation.
No takes yet. Share an insight, caveat, or question.
May aid pre-ablation risk stratification; leaves open prospective validation before guiding ablation decisions.
Sonoda et al. (2014) conducted a cohort in Symptomatic drug-refractory atrial fibrillation (n=80). Atrial fibrillatory wall motion velocity (AFW-V-tvi) vs. Lower AFW-V-tvi was evaluated on Atrial fibrillation recurrence after ablation (HR 0.573, 95% CI 0.337-0.930, p=0.0234). A 1-cm/s increase in atrial fibrillatory wall motion velocity assessed by tissue velocity imaging was associated with a reduced risk of atrial fibrillation recurrence after catheter ablation (HR 0.573).
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