[Cardiovascular effects of a single injection of fentanyl in dogs under acute experimental conditions].

Experimental studies carried out in unselected dogs often face the problem of instabilit of various parameters both in terms of haemodynamics as well as acid-base balance. It is possible, with the injection of a single dose of Fentanyl of 0.35 mg.

[Clinical signs and etiological aspects of metabolic encephalopathies excluding liver encephalopathy and realimentation syndrome].

The clinical picture of metabolic encephalopathies has no aetiological specificity. It combines disturbances in conscious level dominated by disorientation and time and space and disturbances in motor activity, in particular tremor and asterixis. For each of the aetiologies studied, the following are considered: the circumstances of onset, the clinical and laboratory picture, the physiopathology and the treatment.

[Treatment of septicemia and severe infections with a cefradine-tobramycin combination].

The cefradine-tobramycine association was used in 11 cases of septicaemia and in 10 cases of non-septicaemic severe poly-infections. In 15 cases, the treatment was undertaken because of the serious state of the patients before the bacteriologic results were known. This association is characterized by its great effectiveness and its very good tolerance, mainly from the renal point of view.

[Blood gas determination and calculation of shunts in nonhemodynamic pulmonary edemas].

Qs/Qt is usually determined by the "oxygen" method. The standard equation for calculation of percentage shunts is therefore: (see article) In the case for an FiO2 of I and when PaO2 is greater than 150 mm Hg, the equation can be expressed in terms of the difference in partial pressures of oxygen between the alveolus and the artery: (see article) The determination of Qs/Qt then necessitates, apart from calculation of PaO2 measurement of the O2 content of mixed venous blood, taken from the pulmonary artery. When an indwelling catheter for the sampling of mixed venous blood is not available, samples of superior vena cava blood can be used instead.