Case 1:

A previously healthy 53-year-old male encountered severe chest pain during an exercise treadmill as part of an executive testing program.   Due to continued pain and EKG changes, he underwent emergency cardiac catheterization and subsequent aorta-coronary bypass surgery.   The procedure was complicated by excessive bleeding and prolonged hypotension.   Ten units of packed red blood cells were transfused during the surgical procedure.   He stabilized and experienced no further bleeding and was sent to the Recovery Room in stable condition.

The medical history is unremarkable.   He did not drink alcohol, did not smoke, and did not use illicit drugs.   No medications prior to hospitalization.   The family history is positive for premature cardiac disease in the patient's father and several uncles.