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. Author manuscript; available in PMC: 2021 Apr 8.
Published in final edited form as: Heart Rhythm. 2020 Dec 8;18(4):579–588. doi: 10.1016/j.hrthm.2020.12.003

Figure 7.

Figure 7

Pathologic analysis of septal scar and ablation lesion. A: FS patient with C-shaped pattern underwent heart transplantation 4 days after a fourth unsuccessful ablation procedure. B: Ablation along the entire septum and LV inferior wall with low unipolar voltages shown on electroanatomic mapping. C: Explanted heart showed incomplete penetration of multiple ablation lesions into the midseptum (white arrows). D: Trichrome stain showing extensive midseptal fibrosis with interspersed viable myocardium. Ao = aorta; MV = mitral valve; other abbreviation as in Figure 1.