Zeitschrift für Geburtshilfe und Perinatologie
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Z Geburtshilfe Perinatol · Jan 1994
[Risk of neonatal acidosis and maternal respiration during labor].
The reported incidence of neonatal acidosis varies++ significantly in different obstetrical departments. We wanted to investigate to which extend neonatal acidosis is depended on maternal respiration patterns during the third stage of labor. ⋯ A mild maternal hyperventilation synchronized with uterine contractions during the third stage of labor in combination with rapid breathing when delivering the fetal head has a favourable influence on the neonatal acid-base balance. In this study there is no indication that such an obstetrical management results merely in a laboratory artifact, because according to our data there was indeed no indication of compromised fetal oxygen supply. Routine fetal blood sampling also from venous umbilical blood appears to be useful in differentiating between combined feto-maternal and isolated fetal variations in actual pH-values.