title: [Study of a new fetal blood gas parameter: oxygen saturation].
abstract: The oxygen saturation, together with the other parameters of the acid-base balance, was studied in the umbilical vessels of 60 neonates born by vaginal delivery. These assays were used to define the normal range, which is 28 to 38% in the umbilical artery and 62 to 74% in the umbilical vein. The umbilical arterio-venous gradient was always negative. Correlations with the pH and the serum lactate concentration demonstrate that oxygen saturation is a good parameter for the evaluation of foetal hypoxia, which has the advantage of being easily measurable.
mesh_terms: D001784:Blood Gas Analysis; D005260:Female; D005312:Fetal Blood / Q000032:analysis*; D006801:Humans; D007231:Infant, Newborn; D007773:Lactates / Q000097:blood; D010100:Oxygen / Q000032:analysis*; D011247:Pregnancy; D014469:Umbilical Arteries; D014471:Umbilical Veins
chemical_list: D007773:Lactates; D010100:Oxygen
vernacular_title: Etude d'un nouveau paramètre des gaz du sang du foetus: la saturation en oxygène.