Bacterial endocarditis. Echocardiographic and clinical evaluation during therapy

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Abstract
In two patients with bacterial endocarditis and apparent vegetations, the echocardiographic findings included thickening but normal excursion of the mitral leaflet and abnormal shaggy echoes superimposed on the mitral leaflet echogram. Both patients had had endocarditis several weeks before the study was performed. In both patients the abnormal echoes disappeared after antibiotic therapy. Whether or not the echocardiographic findings are specific to bacterial endocarditis must be determined by further studies. One patient had evidence of "immune complex disease" with vasculitis, hypocomplementemia, and renal failure which persisted for weeks after disappearance of vegetations on the echocardiogram. This sequence was unexpected, as a continued source of antigen for this reaction was not apparent.

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