Bacterial endocarditis of the aortic valve with septic coronary embolism and myocardial infarction in a 4-month old baby.

A 4-month old baby, who developed infective endocarditis of the aortic valve following purulent arthritis of the hip joint, is presented. The baby developed signs of myocardial infarction and died suddenly at the age of 6 months. Autopsy revealed a localized healed coronary arteritis, almost certainly due to an infected embolus, as the underlying cause.