[The value of measuring blood pH in fetal monitoring during labour (author's transl)].
The authors present a series of methodological studies carried out to assess the value of the place of measuring fetal blood pH in monitoring in labour. Comparisons of the measures of pH, pCO2, pO2 and lowering of the base were carried out on the scalp in the 3 minutes which preceded the birth and in the umbilical vessels at birth. Comparing the three modes of taking blood in the mother, intra-arterially and from the capillaries with and without local vasodilatation was carried out. The limits of the values were defined both for the fetus and the mother of the parameters of pH, pCO2, pO2 and base deficit in 100 normal deliveries. A study was carried out of their correlations with the Apgar score at 1 minute and with the arterial pH. A comparison of the two series of measurements was carried out on the vessels of the cord--arterial and venous. The results confirm the value of measuring pH for diagnosing the state of the infant during labour.
D000136:Acid-Base Equilibrium; D001034:Apgar Score; D002245:Carbon Dioxide / Q000097:blood; D005260:Female; D005312:Fetal Blood / Q000032:analysis*; D005323:Fetal Monitoring; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007231:Infant, Newborn; D007748:Labor Stage, Second; D007743:Labor, Obstetric; D008722:Methods; D010100:Oxygen / Q000097:blood; D011247:Pregnancy; D014469:Umbilical Arteries
D002245:Carbon Dioxide; D010100:Oxygen
Intérêt de la mesure du pH sanguin dans la surveillance foetale pendant l'accouchement.