[Tetralogy of Fallot associated with supravalvular mitral membrane]

Two children with tetralogy of Fallot and supravalvular mitral membrane are reported. In both, the diagnosis was established before surgery. In the first case, clinical data suggested the associated mitral lesion and a two-dimensional echocardiogram demonstrated a supravalvular membrane. In the second patient, mitral obstruction was diagnosed by Doppler echocardiography and the supravalvular membrane was visualized by means of the angiographic study. Despite the rare association of both malformation, the importance of its clinical recognition is mainly related to the surgical correction of both lesions.