Acute Posterior Myocardial Infarction by ECG Finding

**Semantic type:** Finding

**Definition:** An electrocardiographic finding in leads V1 or V2 of an initial R wave duration greater than or equal to 40 ms, R wave greater than S wave, upright T wave, with accompanying ST elevation, which is suggestive of acute myocardial infarction of the posterior wall of the left ventricle. Evidence of inferior or lateral myocardial infarction is usually also present. (CDISC)

**Synonyms:** - ACUTE POSTERIOR WALL MYOCARDIAL INFARCTION - Acute Posterior MI - Acute Posterior Myocardial Infarction by EKG Finding - Acute Posterior Wall Myocardial Infarction