Figure 1.

This figure shows the cardiac catheterization laboratory decision‐making process tree from arrival to either admission to the hospital or death. Timely delivery of the patient to the CCL, evidence of adequate CPR‐generated perfusion, and identification of reversible causes for the arrest were the 3 important pillars of the protocol. ACLS indicates advanced cardiac life support; CCL, cardiac catheterization laboratory; CICU, cardiac intensive care unit; CPR, cardiopulmonary resuscitation; ECMO, extracorporeal membrane oxygenation; ETCO₂, end‐tidal CO₂; IABP, intra‐aortic balloon pump; ITD, impedance threshold device; VF/VT, ventricular fibrillation/ventricular tachycardia.