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Clearly, most patients with return of spontaneous circulation (ROSC) after cardiac arrest should undergo early cardiac catheterization if they have ST-segment elevation myocardial infarction (STEMI) or their initial rhythm was shockable (ventricular fibrillation or pulseless ventricular tachycardia). The 2015 American Heart Association (AHA) guidelines also support early intervention as a reasonable strategy for patients who meet neither of these criteria, but there are limited data in this population and tremendous practice variability among centers and cardiologists. Using cardiac arrest registry data from 18 U.S. hospitals, these authors retrospectively examined the rate of catheterization and intervention in patients without STEMI or in…