Slide 1: “What’s the diagnosis?” “Doc, I have crushing chest pain!”

Slide 2: Inferior MI. But what’s the vessel?

Slide 3: Where do IMIs originate from? 80% of patients are right dominant and the IMI originates from the RCA. 20% are left dominant and the IMI originates from the left circumflex. …But how do we differentiate them?

Slide 4: ST elevations localize to the region of infarct! STE III > II and STD in lateral leads? If YES – lesion in RCA (sensitivity 90% specificity 71%).

Slide 5: ST elevations localize to the region of infarct! STE III > II and STD in lateral leads? If NO – lesion in LCx (sensitivity 83% specificity 96%).

Slide 6: ST elevations localize to the region of infarct! STE III > II and STD in lateral leads? YES – lesion in RCA.