1.   Contraindications to exercise training include unstable angina pectoris, ventricular arrhythmias, and severe aortic stenosis.

2.   According to Schaefer, McDermott has known for years that he had a congenital heart condition called aortic stenosis, a malformation of the valve on the left ventricle.

3.   All suffer from a heart defect called supravalvular aortic stenosis, or SVAS, in varying degrees of severity.

4.   The Hall of Fame broadcaster underwent a procedure to correct a condition known as aortic stenosis on Wednesday.