Key result
Residual slow pathway after successful ablation was associated with a higher rate of late clinical recurrence of AVNRT compared to no residual slow pathway (18.5% vs 0%, p=0.002).
Why the study?
Does the presence of residual slow pathway conduction and changes in DeltaAH predict clinical recurrence in patients with common type AVNRT after successful slow pathway ablation?
Observational (n=97)
Does the presence of residual slow pathway conduction and changes in DeltaAH predict clinical recurrence in patients with common type AVNRT after successful slow pathway ablation?
Absolute Event Rate: 18.5% vs 0%
p-value: p=0.002
The presence of a residual slow pathway and smaller changes in DeltaAH after successful slow pathway ablation are significant predictors of late clinical recurrence of AVNRT.
No takes yet. Share an insight, caveat, or question.
Residual slow pathway may warrant closer post-ablation monitoring in AVNRT; leaves open whether targeting it reduces recurrence in prospective studies.
Hara et al. (2004) conducted an observational in Atrioventricular-Nodal Reentrant Tachycardia (AVNRT) (n=97). Slow pathway ablation (presence of residual slow pathway) vs. No residual slow pathway was evaluated on Late clinical recurrence of AVNRT (p=0.002). Residual slow pathway after successful ablation was associated with a higher rate of late clinical recurrence of AVNRT compared to no residual slow pathway (18.5% vs 0%, p=0.002).
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