Aortic root abscess resulting from endocarditis: spectrum of angiographic findings.

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Abstract
Abscesses in the aortic root are a serious complication of infective endocarditis and require accurate diagnosis for antibiotic and surgical management. Cases (19) of endocarditis of a native valve or prosthetic valve and adjacent abscess cavities were identified with angiography. Of 6 patients with endocarditis of a native valve, 5 had bicuspid aortic valves and all had severe aortic regurgitation. Abscesses in the aortic root were saccular, ranged from 1 to 3 cm in diameter, and, depending on sinus of origin, extended beneath the main and right pulmonary arteries or into the interventricular septum or mitral anulus. Fistulas were detected into the mitral anulus in 8 patients, and into the right ventricle in 3 patients. No complications from the catheterization were recorded during the 48-h follow-up.

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