Newsom Score — Post-Cardiac Arrest Emergent Cardiac Catheterization Triage

The Newsom Score is a validated clinical decision tool developed to predict which post-cardiac arrest patients without ST-elevation on post-ROSC ECG harbor an acute coronary occlusion requiring emergency coronary angiography and intervention. In patients resuscitated from out-of-hospital cardiac arrest (OHCA) without ST-elevation, the rate of acute culprit coronary occlusion is 25–35% — yet the TOMAHAWK and COACT trials showed that immediate coronary angiography does not improve 30-day mortality vs. delayed angiography in unselected NSTE-arrest patients. The Newsom Score identifies the subset of NSTE-arrest patients most likely to have an acute coronary lesion, enabling targeted emergent catheterization versus cooling and deferred angiography.