We report a tricky case of endocarditis because of the localization, aortic
coarctation, and the pathogenic bacteria Actinobacillus actinomycetemcomit
ans. Furthermore, we underline the leading role of transesophageal echocard
iography in the diagnosis of aortic endarteritis. First, aortitis was treat
ed with antibiotics and, second, successfully operated on. (Ann Thorac Surg
2000;70:966-9) (C) 2000 by The Society of Thoracic Surgeons.