Summary

The authors report a 1.5-year-old girl who developed Actinobacillus actinomycetemcomitans (AA) endocarditis involving the pulmonic valve. She had a congenital cardiac abnormality, but no history of dental manipulation. The case illustrates an uncomplicated course with three unique features; the youngest reported infant with endocarditis caused by AA with vegetation on the pulmonic valve. She underwent a benign course with complete recovery.

The authors report a 1.5-year-old girl who developed AA endocarditis involving the pulmonic valve. She had a congenital cardiac abnormality, but no history of dental manipulation. The case illustrates an uncomplicated course with three unique features; the youngest reported infant with endocarditis caused by AA with vegetation on the pulmonic valve. She underwent a benign course with complete recovery.