[The predictability of the degree of right ventricular hypertension after correction of the tetralogy of Fallot].

The validity of an equation which, on the basis of various angiocardiographic measurements allows prediction of the post-repair ratio between the systolic pressures in the right and the left ventricle is retrospectively tested in a series of 46 patients with the "classical" form of tetralogy of Fallot. If the right and left pulmonary arteries are "restrictive", the equation was found to be reliable in such a prediction, provided a negligible gradient is left at the pulmonary anulus level. The implications of the use of this equation on surgical management of patients with tetralogy of Fallot are discussed.