Acute MI: MedlinePlus Medical Encyclopedia Image

Home » What Does M.i. Stand For » Acute MI: MedlinePlus Medical Encyclopedia Image

Maybe your like

Skip navigation

Official websites use .govA .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPSA lock ( Lock Locked padlock icon ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

You Are Here: Home → Medical Encyclopedia → Acute MI URL of this page: //medlineplus.gov/ency/imagepages/17004.htm Acute MI Acute MI

Overview

A heart attack or acute myocardial infarction (MI) occurs when one of the arteries that supplies the heart muscle becomes blocked. Blockage may be caused by spasm of the artery or by atherosclerosis with acute clot formation. The blockage results in damaged tissue and a permanent loss of contraction of this portion of the heart muscle.

Review Date 1/1/2025

Updated by: Michael A. Chen, MD, PhD, Associate Professor of Medicine, Division of Cardiology, Harborview Medical Center, University of Washington Medical School, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

Learn how to cite this page

Tag » What Does M.i. Stand For