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How do diseases like heart failure cause the heart to produce abnormal sound?

April 26, 2017cause diseases failure heart sound

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How do diseases like heart failure cause the heart to produce abnormal sound?

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The heart produces both normal (“lub-dub”) and abnormal sounds as blood moves throughout the heart. Cardiac diseases including heart failure cause the heart muscle to stiffen, making it difficult for the heart to properly contract and relax as it pumps blood. The abnormal third heart sound is produced when fast moving blood is suddenly stopped because the stiffened heart wall is unable to stretch. Click here to visit Learn About Heart Sounds page to learn more.