[Protection and reperfusion of the myocardium by cardioplegia with blood enriched in aspartate and glutamate. Technique and initial results. Report of 60 cases].

From 1st November 1987 to 30th September 1988, 27 patients with recent myocardial infarction and 33 patients at high risk of postoperative circulatory failure were operated according to the same protocol. In each case, myocardial protection, at the time of aortic clamping, consisted of an intra-coronary injection of a cardioplegic solution of blood enriched with aspartate and glutamate, administered in 3 phases (normothermic induction, hypothermic induction, normothermic reperfusion) according to the protocol described by Buckberg et al. The operative mortality was 11.

[Evaluation of the severity of congenital aortic valve stenosis by M-mode echocardiography. Comparison with hemodynamics and data from the literature].

Previously published M mode echocardiographic formulae for the prediction of transvalvular aortic pressure gradients and/or systolic left ventricular pressure, were tested in a series of 26 children aged 2 to 17 years with compensated valvular aortic stenosis. The formulae using the end systolic parameters Ws/Ds expressing the ratio of the thickness of the left ventricular posterior wall to the diameter of the ventricular cavity were useful, irrespective of the value of the constant of proportionality "C" (225 or 245). Formulae using the end diastolic measurements of the left ventricular posterior wall; of the interventricular septum and diameter of the left ventricle also gave a good estimation of the transvalvular aortic gradients or left ventricular pressure.