Friday, June 12, 2009

How is cardiac arrest different than a heart attack?

A lot of people confuse the two.

Heart Attack: Think of it as a “plumbing” problem.
It is a circulatory problem in the heart that causes one or more of the arteries delivering blood to the heart muscle to get blocked. Without oxygen, the muscle becomes damaged and dies.

Sudden Cardiac Arrest: Think of it as an “electrical” problem.
A Sudden Cardiac Arrest is usually caused when the heart’s lower chambers suddenly develop a rapid, irregular rhythm causing the ventricles to quiver rather than contract. This prevents the heart from pumping blood effectively and the supply of blood to the brain is compromised.

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