ABSTRACT
Assessment prior to mapping and ablation procedure Regionalizing the ‘exit site of origin’ of VT Scarred-substrate modification: an alternative ablative approach Epicardial mapping and ablation of post-MI VT: an adjunctive percutaneous approach Mapping systems Energy source for ablation
The management of ventricular tachycardia (VT) associated with prior myocardial infarction (MI) remains a major challenge despite the technologic advances over the past decade. Sustained VT may present in up to 20% of patients with history of a prior MI1 and may account for up to 80% of sudden cardiac death (SCD) cases in the United States. The Multicenter Automatic Defibrillator Implantation Trial-II (MADIT-II) has shown that patients with prior MI and significant decreased left ventricular ejection fraction (EF) have increased mortality rates and that the implantation of an ICD can improve life expectancy in this patient population.2
