Mitral valve stenosis

Mitral valve stenosis is usually a congenital heart defect – that is, it is present when a child is born. Around eight in every 1,000 babies born have a congenital heart defect.

Congenital mitral valve stenosis means that the valve between the left pumping chamber (left ventricle) and left filling chamber (left atrium) is narrower than it should be.

More information for parents and visitors on mitral valve stenosis