Key result
Three-dimensional electroanatomic mapping identified the cavotricuspid isthmus in 92% of macroreentrant atrial tachycardias after ASD repair, with 100% acute ablation success but 59% early recurrence.
Why the study?
What are the mechanisms of right atrial tachycardia occurring late after surgical closure of atrial septal defects, and what is the efficacy of radiofrequency ablation?
Population
22 consecutive patients presenting with atrial tachycardia late after surgical closure of atrial septal…
Design
Cohort
Follow-up
25 ± 16 months
Authors
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May inform CTI targeting for post-ASD macroreentry; leaves open strategies to reduce high recurrence.
Observational (n=22)
What are the mechanisms of right atrial tachycardia occurring late after surgical closure of atrial septal defects, and what is the efficacy of radiofrequency ablation?
Three-dimensional electroanatomic mapping reveals that the cavotricuspid isthmus is involved in the vast majority of macroreentrant atrial tachycardias late after ASD repair, though recurrence rates after ablation remain high.
Magnin‐Poull et al. (2005) conducted an observational in Atrial tachycardia occurring late after atrial septum defect (ASD) repair (n=22). Three-dimensional electroanatomic mapping and radiofrequency ablation was evaluated on Acute success of radiofrequency ablation. Three-dimensional electroanatomic mapping identified the cavotricuspid isthmus in 92% of macroreentrant atrial tachycardias after ASD repair, with 100% acute ablation success but 59% early recurrence.
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