[Rheumatic mitral stenosis. The medical solution].

The first case of balloon catheter valvular dilatation for rheumatic mitral stenosis is reported in a 13 year-old child. The technique, under local anesthesia, required a transseptal access, then the introduction of one, then simultaneously 2 balloon catheters through the mitral valve. A perfect opening of the valve, without mitral insufficiency was obtained. This technique, even if difficult, seems to be adaptable to most children with rheumatic mitral stenosis.