ACCESS to the Cardiac Cath Lab in Patients Without STEMI Resuscitated From Out-of-hospital VT/VF Cardiac Arrest

Inclusion Criteria: * Adult presumed or known to be 18-75 years old * Resuscitated from OOHCA * Initial cardiac arrest rhythm of pulseless VT/VF (including patients treated with an AED) * No ST-segment elevation MI (No STEMI) (or STEMI-equivalent syndrome) on ED 12-lead ECG (as interpreted by a physician) Exclusion Criteria: * Initial non-shockable out-of-hospital cardiac arrest rhythm (pulseless electrical activity or asystole) * Valid do not resuscitate orders (DNR), * Blunt, penetrating, or burn-related injury, drowning, electrocution or known overdose, * Known prisoners * Known pregnancy, * ST-segment elevation on ED 12-lead ECG (as interpreted by a physician) * Absolute contraindications to emergent coronary angiography including, * known anaphylactic reaction to angiographic contrast media, * active gastrointestinal or internal bleeding, or * severe concomitant illness that drastically shortens life expectancy or increases risk of the procedure. * Suspected or confirmed intracranial bleeding * Refractory cardiac arrest (prior to randomization) * Patients meeting ACCESS Trial eligibility criteria initially seen in an outside hospital and then transferred to an ACCESS Trial participating hospital