Published: October 6th, 2015

Category: STEMI

Pre-hospital ECG


Emergency Department ECG:


Cardiac Cath Report

LM: Patent
LAD: 80% disease in its mid portion
LCx: 40-50% ostial stenosis
RCA: Large dominant vessel. 100% acute thrombotic stenosis in its mid portion – culprit lesion

Procedure: successful stent placement to mid RCA



Inferior MI

  • 40-50% of all myocardial infarctions.
  • more favorable prognosis than anterior myocardial infarction
  • Up to 40% of patients with an inferior STEMI will have a concomitant right ventricular infarction. These patients may develop severe hypotension in response to nitrates and generally have a worse prognosis.
    • Confirmed with Right sided ECG, Elevation in V4R
  • Up to 20% of patients with inferior STEMI will develop significant bradycardia due to second- or third-degree AV block. These patients have an increased in-hospital mortality (>20%).
  • ECG findings
    • ST elevation in leads II, III and aVF
    • Reciprocal ST depression in aVL (± lead I)
    • RCA (80%): Elevation in III > II, Reciprocal depression in I
    • LCx (20%): Elevation in III = II, No reciprocal depression in I