A case of acute rheumatic fever: echocardiographic findings for mitral regurgitation in acute rheumatic carditis.

An eight-year-old girl with mitral regurgitation in acute rheumatic fever was examined by echocardiography. The examination showed posterior displacement of the coaptation point of the anterior mitral leaflet, i.e. anterior mitral prolapse, and did not indicate signs of edematous change or verrucous fibrin deposits on the valves. Mitral valve prolapse is thought to be one of the causes of mitral regurgitation in acute rheumatic carditis.