Congenital bicuspid aortic valves associated with coarctation of the aorta in children.

The 15-year experience of the cardiac clinic at this hospital from 1953 to 1967, with 429 children under 14 years of age with coarctation, was reviewed. The aortic valves of 119 available post-mortem specimens were re-examined, and the incidence of bicuspid valves and valvar stenosis determined. This necropsy incidence was then compared with the clinical incidence of aortic valvar disease in children in whom aortic valvar disease has been documented at operation, or by cardiac catheterization and angiocardiography.