We report the case of a young woman in whom endaortitis developed at t
he site of a coarctation of the aorta after the invasive investigation
of right fossa iliac pain. The organism responsible suggests a causal
relationship to the investigations without antibiotic prophylaxis, an
d we emphasize the need for antibiotic prophylaxis in these cases. Inv
asive investigation of isolated coarctation in a young adult or adoles
cent is probably superfluous. (C) 1997 by The Society of Thoracic Surg
eons.