Heart Attack

When the blood supply to the heart is slowed or stopped because of a blockage, a heart attack occurs. Atherosclerosis, the narrowing of coronary arteries due to plaque buildup, causes more than 90% of heart attacks. A heart attack may also occur when a coronary artery temporarily contracts or goes into a severe spasm, effectively shutting off the flow of blood to the heart. The length of time the blood supply is cut off will determine the amount of damage to the heart.

Some heart attacks may not affect the heart's functioning, but others may interfere with its ability to pump blood effectively. Sometimes a heart attack may lead to cardiac arrest.

For more information about heart attacks check out the following websites:

Heart and Stroke Foundation of Canada

Up-to-date Patient Information

Services in your area that may help:

The Improving Health: My Way Program helps individuals with chronic health problems to manage their health, and maintain active and fulfilling lives, despite the challenges associated with chronic illnesses. For more information contact selfmanagement@westernhealth.nl.ca or look at our website.