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Heart Attack

A heart attack happens when blood flow to the heart is blocked. Without blood and the oxygen it carries, part of the heart starts to die. The medical name for a heart attack is myocardial infarction, or MI.

A heart attack is often the result of coronary artery disease, in which fatty deposits called plaque (say "plak") build up inside the heart arteries. When plaque breaks open or ruptures, it can form a clot that blocks blood flow to the heart muscle.

Quick treatment that restores blood flow to the heart can help save lives.

By Healthwise Staff
Primary Medical Reviewer Rakesh K. Pai, MD, FACC - Cardiology, Electrophysiology
Specialist Medical Reviewer Stephen Fort, MD, MRCP, FRCPC - Interventional Cardiology
Current as of March 12, 2014

WebMD Medical Reference from Healthwise

Last Updated: March 12, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.