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The Medicine Chest






Heart murmurs are sounds – such as whooshing or swishing – made by turbulent blood in or near the heart. ​When doctors listen to a child's heart, what they usually hear is a simple rhythm: "lub-dub, lub-dub, lub-dub..." Sometimes, they'll hear an extra sound in between the lub and the dub. That extra sound is called a heart murmur. Heart murmurs can be harmless or abnormal. In the case of the latter, it is usually the result of abnormal blood flow through the heart caused by a heart valve not working properly.

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