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Definition of Cardiac aneurysm

Cardiac aneurysm: An outpouching of an abnormally thin portion of the heart wall. Cardiac aneurysms tend to involve the left ventricle because the blood there is under the greatest pressure.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=6111
Last Editorial Review: 3/30/2012

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