Shinouchi K, et al. - In 106 retrospectively included consecutive sudden cardiac arrest (SCA)-acute coronary syndrome (ACS) patients who had coronary angiography, researchers assessed the link between the presence of chronic total occlusion (CTO) and in-hospital mortality. Death was reported in 40 (38%) patients during hospitalization. The factors that showed a significant relation to mortality included the presence of CTO dependent on infarct-related artery (IRA-dependent-CTO), diabetes mellitus, percutaneous cardiopulmonary support use, successful recanalization, and peak creatine kinase muscle-brain fraction, as revealed in multivariate analysis.