Posterior MI

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Synonyms and keywords:

Overview

A posterior MI is a heart attack or cessation of blood flow to the heart muscle that involves the backside or posterior side of the heart. Rather than causing the traditional ST segment elevation characteristic of the electrocardiogram of many heart attacks (a "STEMI"), because the heart attack is on the opposite side of the heart, the ST segments are depressed in the anterior precodial leads rather than elevated.