[Salicylate poisoning. Determination of the free fraction using the ultrafiltration method].

Seventeen infants under one year of age admitted to the Emergency Service of the General Hospital of the Medical Center La Raza during the year 1976 were included in this study with the diagnosis of salicylate poisoning. Determination of plasma salicylate by the ultrafiltrate method was practiced to all patients. A direct relationship between total plasmatic salicylate and its free fraction was found together with an inverse proportion between percentage of total free--salicylate and plasma pH and a lineal correlation between plasma free--salicylate and salicylate obtained in spinal fluid.

[Changes of serum lipids during parenteral feeding with a 10 percent of soy oil solution (author's transl)].

The purpose of this investigation was the knowledge of certain events related with the intravenous administration of lipids in patients with parenteral nutrition such as tolerance, clearence and changes in the plasmatic lipid fractions and the effect of heparin as capilar lipoprotein-lipase stimulant and of the insulin as lipogenetic hormone. With intralipid the authors observed elevation of serum total lipid, triglicerids and fatty acids; in this patients the fatty acids went up after addition of heparin because triglicerid elucidation but went down after insulin administration which favor the tisular captation of fatty acids. They do not found alteration in serum cholesterol.