Limitations
Our meta-analysis has several limitations, which should be taken into account while interpreting the results. Only a small number of studies have assessed the impact of first-line VT ablation in patients with ICM, and the data available to stratify outcomes based on LVEF is limited; hence, the necessity to assess a composite endpoint. Also, techniques for VT mapping and ablation differed amongst the studies. Our results are applicable only to patients with ICM, and should not be generalized to NICM.