Percutaneous pulmonary valve implantation (PPVI) has revolutionized the management of right ventricular outflow tract dysfunction after repaired congenital heart disease. Although the technology is considered to be safe with a relatively low complication rate, infection is a described complication, with five cases of culture-positive infective endocarditis of percutaneously implanted pulmonary valve having been reported to date worldwide. Herein is reported the first ever case of culture-negative endocarditis following PPVI, caused by Bartonella henselae, diagnosed five years after implantation in a 15-year-old patient with a repaired truncus arteriosus.