Why the study?
Does left septal atrial tachycardia after open-heart surgery have different electrophysiological characteristics and ablation outcomes compared to nonseptal atrial tachycardia?
Population
20 consecutive patients undergoing catheter ablation of macroreentrant atrial tachycardia after open-heart…
Comparison
Catheter ablation vs Left septal AT (n=7) versus nonseptal AT (n=13)
Design
Cohort
Follow-up
30-month
Authors
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Left septal AT after open-heart surgery was associated with higher ablation recurrence; leaves open whether septal substrate modification improves durability.
Does left septal atrial tachycardia after open-heart surgery have different electrophysiological characteristics and ablation outcomes compared to nonseptal atrial tachycardia?
Left septal atrial tachycardia after open-heart surgery is associated with a thicker septum, greater scar burden, and a significantly higher rate of recurrence following catheter ablation compared to nonseptal AT.
Adachi et al. (2014) studied this question.
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