Does Early Coronary Angiography Improve Survival After out-of-Hospital Cardiac Arrest? A Systematic Review With Meta-Analysis

In patients with out-of-hospital cardiac arrest who achieve return of spontaneous circulation, coronary angiography (CAG) might improve outcomes. We conducted a systematic review and meta-analysis to elucidate the benefit and optimal timing of early CAG in comatose out-of-hospital cardiac arrest patients with return of spontaneous circulation.