Correction of tetralogy of Fallot after Waterston shunt.

The authors have reviewed their experience concerning twenty-seven patients who underwent intracardiac repair of Fallot's Tetralogy after a previous Waterston shunt. They are divided into 4 groups according to the classification of Shinebourne, Anderson and Bowyer. The risk factors are analyzed in group 1 patients in whom primary total correction is contra-indicated and in whom the mortality at repair is high in presence of kinking of right pulmonary artery.

[Circulatory arrest under deep hypothermia in the correction of the interventricular communication in the newborn (author's transl)].

The technique of circulatory arrest under deep hypothermia has completely changed the therapeutic outlook of some congenital heart malformations in the newborn. The authors have tried this method particularly in neonate cases of the interventricular communication. This experience bears on ten newborn cases aged 3 to 11 months.

Comparative haemodynamic effects of glucagon and isoprenaline in the early postoperative period in cardiac surgery.

In order to study the haemodynamic effects of isoprenaline and glucagon in the immediate postoperative period, 16 patients who had single or multiple valve replacement or coronary artery bypass grafts were investigated. Measurements of cardiac index, stroke index, heart rate, arterial and right atrial mean pressures were made either before, during, or after the administration of both drugs. With the doses used, the inotropic effects of both drugs are similar, while the chronotropic action is statistically higher during isoprenaline infusion than after glucagon administration.