Early experience with ivabradine for focal atrial tachycardia in pediatric patients with congenital heart disease

Incessant Atrial Tachycardia From the Left Atrial Appendage Treated With Appendage Ligation

“…The use of ivabradine to control focal tachycardias has been reported in the literature, 3 , 4 , 5 , 6 , 7 , 8 with 1 larger case series documenting a significant percentage of treatment failure that requires catheter ablation for eventual control. 9 Ivabradine works by inhibiting the “funny current” I f , which mediates phase 4 depolarization in pacemaker tissues.…”