All ECG 41
- Normal sinus rhythm
- ST changes consistent with ischemia - specifically, occlusion of the left main coronary artery
This ECG shows dramatic ST depression that is downsloping consistent with ischemia. The changes are quite pronounced. One classic teaching helps to diagnose a left main coronary artery occlusion. This is ST segment elevation in lead aVR greater than the ST elevation in lead V1 along with ST depression in the precordial leads.