Identifying an acute myocardial infarction on the 12-lead ECG is the most important ... These are the septal and anterior ECG leads. The MI is posterior (opposite to these leads anatomically ...

An anterior wall myocardial infarction occurs when anterior myocardial ... must be 2 mm in men or 1.5 mm in women. See the full 12-lead ECG example below and a few more at the bottom.

A 12-lead ECG with posterior leads V7–9 was diagnostic ... The patient suffered posterolateral myocardial infarction. Between 15 and 20% of myocardial infarctions manifest as posterior infarction.

To be eligible to enter the trial, patients had to have a first episode of anterior AMI, Killip class I to II, and an acceptable echocardiographic window. On ECG there ... 12-lead ECG+ V3R-V4R ...