Cardiac surgery was performed on Day 12. At
surgery, a 1.5 cm 1.5 cm perivalvular abscess underneath
the left coronary orifice and a small vegetation
over the commissure of the bicuspid aortic valve were
present. A pathological study found Gram-negative
bacilli in the valvular tissue. After 41 days of intravenous
antibiotic therapy, she was discharged with oral
levofloxacin for another 10 days. Six months later, she
remains in a stable condition.