[Atypical forms of Ebstein's disease: value and limitations of ultrasonography and cardiac catheterization (author's transl)].

Diagnostic ultrasonography signs of Ebstein's disease are delayed closing of the tricuspid valve in relation to the mitral valve, and the possibility of recording from the tricuspid valve when the transducer is outside of the left median clavicular line. These criteria were present in 8 out of a series of 10 cases and 6 of these patients had also had haemodynamic tests which showed auricularization of a portion of the right ventricle in all of them. Details are described for 3 of these patients to illustrate the different atypical clinical forms of Ebstein's disease, and the value and limitations of complementary investigations for establishing the diagnosis of this affection.