Enriquez A, et al. - This study appraised extracorporeal membrane oxygenation (ECMO) as rescue intervention for acute hemodynamic decompensation (AHD) in patients undergoing catheter ablation (CA) of electrical storm (ES). ECMO afforded poor outcomes in these subjects, as a rescue intervention for AHD and, the majority of these patients died at short-term from refractory heart failure. Survival might be improved via implementing strategies to prevent AHD including pre-emptive use of hemodynamic support.