What is Ebstein's disease? Ebstein's anomaly is a congenital heart defect in which the septal and posterior leaflets of the tricuspid valve are displaced towards the apex of the right ventricle of the heart. What is the cause of Ebstein's anomaly? Ebstein's anomaly occurs due to improperdevelopment of the tricuspid valve in the first eight weeks of fetal growth. It can be caused by a number of factors, though, most of the time, this heart defect occurs sporadically (by chance), with no apparent reason for
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