Arq. Bras. Cardiol. 2024; 121(1): e20230421
Cardiac Magnetic Resonance to Evaluate Complete Substrate Elimination after Endocardial Ventricular Tachycardia Ablation in Chagas Disease
Mauricio I. Scanavacca
, Rodrigo M. Kulchetscki
, Carlos E. Rochitte
, Cristiano F. Pisani
Introduction
The main endpoint of ventricular tachycardia (VT) ablation includes elimination of the abnormal substrate on remapping and rendering non-inducible VT with programmed ventricular stimulation. ,
Cardiac magnetic resonance (CMR) has been increasingly used as a tool for locating the arrhythmogenic substrate of patients with scar-related VT. The images can be integrated with the electroanatomical mapping to guide ablation to the identified channels responsible for the VT-reentry circuits, optimizing the ablation results. However, until now, CMR has not been used to confirm the complete substrate elimination and effectiveness of VT ablation.
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