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Serial two-dimensional echocardiography in infective endocarditis of the pulmonic valve.

Infective endocarditis was diagnosed in a 15-yr-old patient following closure of a patent ductus arteriosus several weeks previously. Pulmonic valve vegetations were detected by both M-mode and two-dimensional echocardiograms. The serial echocardiographic examinations revealed the emergence of a vegetation on the pulmonic valve, a marked decrease in its size subsequent to pulmonary embolism, reemergence of a vegetation upon relapse of the disease and its resolution 4 mo later. The echocardiographic findings and their correlation to the various stages of the disease are described.