Old inferior myocardial infarction

A 53 year old man with Ischaemic Heart Disease.

Old inferior myocardial infarction

• a Q wave in lead III wider than 1 mm (1 small square) and
• a Q wave in lead aVF wider than 0.5 mm and
• a Q wave of any size in lead II

Acute posterior myocardial infarction

A 60 year old woman with 3 hours of chest pain.

Acute posterior myocardial infarction

• (hyperacute) the mirror image of acute injury in leads V1 - 3
• (fully evolved) tall R wave, tall upright T wave in leads V1 -3
• usually associated with inferior and/or lateral wall MI

Acute anterior myocardial infarction

     

A 63 year old woman with 10 hours of chest pain and sweating.

Acute anterior myocardial infarction

• ST elevation in the anterior leads V1 - 6, I and aVL
• reciprocal ST depression in the inferior leads

Acute inferior myocardial infarction

A 55 year old man with 4 hours of "crushing" chest pain.

Acute inferior myocardial infarction

• ST elevation in the inferior leads II, III and aVF
• reciprocal ST depression in the anterior leads
• Right Bundle Branch Block and sinus bradycardia are also present.