Mid Left Circumflex STEMI on ECG This patient who had cp for 1 hour had a 100% occlusion of the mid-left circumflex. It should be humbling to realize how subtle an EKG can look in occlusion MI. ST elevations in leads 1 and avl, with reciprocal st depressions in lead 3. A frequently missed stemi in a pt with 100% LCx lesion. Eric Abrams, MD @eabramsMD #LCx #Mid #Circumflex #STEMI #ECG #EKG #Electrocardiogram #POCUS