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. 2009 Nov 1;9(6):299–317.

Figure 5.

Figure 5

Potential critical isthmuses for ventricular tachycardia in surgically repaired tetralogy of Fallot. Potential arrhythmia circuits along the right ventricular free wall (Panel A) and septum (Panel B) are indicated by yellow arrows. Small grey circles schematically represent four critical isthmuses for ventricular tachycardia that may be transected by catheter ablation. Reproduced from Khairy P, Stevenson WG. Catheter ablation in tetralogy of Fallot. Heart Rhythm 2009;6(7):1069-74.71. Copyright (2009), with permission from Elsevier.