1. Elias Hanna, MD, Cardiology
ST depression that is isolated in leads V1-V3 or diffuse but most prominent in V1-V3 is posterior STEMI rather than anterior non-ST elevation ischemia. Posterior STMI leads to reciprocal anterior ST depression. This can be proven by recording leads V7-V9

2. ST depression that is isolated in leads V1-V3 or diffuse but most prominent in V1-V3 is posterior STEMI rather than anterior non-ST elevation ischemia. Posterior STMI leads to reciprocal anterior ST depression. This can be proven by recording leads V7-V9

3. V3
Posterior STEMI anterior ST depression in V1-3

5. 7 8 9
Posterior leads V7-V9 recording in our patient with ST depression in the anterior leads : ST elevation with Q waves