shone's syndrome

Shone’s Complex (also known as Shone’s Syndrome, Disorder, or Anomaly) is a rare congenital heart disease that restricts blood flow both in and out of the heart’s left ventricle. The classic Shone's consists of four defects, which are depicted in the illustration below. These are (1) parachute mitral valve, (2) supravalvar mitral membrane, (3) subaortic stenosis, and (4) coarctation of the aorta. But there are also incomplete forms of the disease in which only two or three of these defects are present, and cases in which other congenital heart defects also occur (e.g. patent ductus arteriosus, interrupted aortic arch, bicuspid aortic valve, atrial septal defect, ventricular septal defect).