PNI caused by catheter ablation appears to functionally recover over time regardless of the energy sources used for the procedure.

Catheter ablation is effective in acute suppression of ES and often represents a life-saving therapy. In the long term, it prevents recurrences of any VT in about half of the treated patients.

Electrical storm due to focally triggered polymorphic VT/VF may occur either in subacute phase of myocardial infarction or substantially later after index event. Catheter ablation of ectopic beats triggering these arrhythmias can successfully abolish electrical storm and become a life-saving procedure.

Compared to the other two procedures, patients with PVAI had the best survival rates at the end of 7 years. However, the observational case-control design of this study incurs the potential for confounding due to nonrandomized treatment selection, and creates a major limitation in making valid generalization of the findings.

No abstract