Congenital heart defect (CHD) or congenital heart anomaly is a defect in the structure of the heart and great vessels that is present at birth. Many types of heart defects exist, most of which either obstruct blood flow in the heart or vessels near it, or cause blood to flow through the heart in an abnormal pattern. Other defects, such as long QT ...
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http://en.wikipedia.org/wiki/Congenital_heart_defect
a structural defect of the heart or great vessels or both that is present at birth, resulting from improper development of the heart and blood vessels during the prenatal period. The most common types are tetralogy of fallot, patent ductus arteriosus, ventricular septal defect, atrial septal defect, transposition of great vesse...
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http://www.encyclo.co.uk/local/21001
Congenital heart defects are the most common kind of fatal birth defect in newborns and affect 1 out of every 120 live births. Approximately 35,000 babies are born with some form of a heart defect every year and more babies will die during their first year of life from a heart defect than any other reason. The heart begins forming and developin...
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http://www.pregnology.com/
[
n] - a birth defect involving the heart
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http://www.webdictionary.co.uk/definition.php?query=congenital%20heart%20de
noun a birth defect involving the heart
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https://www.encyclo.co.uk/local/20974
a heart problem present at birth, caused by improper development of the heart during fetal development.
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https://www.stanfordchildrens.org/en/topic/default?id=glossary---cardiovasc
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