NCIt related terms : Congenital Atresia of Mitral Valve;
NCIt definition : A congenital heart defect characterized by the complete atresia of the mitral valve.;
Alternative definition : NICHD: A congenital defect where the valve (mitral) which connects the two chambers
on the left side of the heart (atrium and ventricle) is closed off. The blood is unable
to flow between the two heart chambers.;