Ventricular tachycardia mapping and ablation in arrhythmogenic right ventricular cardiomyopathy/dysplasia: Lessons Learned

Figure 1 Bipolar right ventricle endocardial voltage maps demonstrating characteristic patterns of low voltage (< 1. 5 mV) regions identified in patients with arrhythmogenic right ventricular cardiomyopathy/dysplasi and ventricular tachycardia in anterior and posterior views. Peritricuspid (pattern 1), peripulmonic (pattern 2), or more extensive involvement extending from both valvular regions (pattern 3) is shown. Distribution of abnormal electrograms is predominantly free wall. Right ventricle apex is spared, and septal involvement is frequently identified (arrows). Adapted from Marchlinski et al[15] with permission. AP: Anterior; PA: Posterior.