[Study on evaluation of fetal scalp tissue pH value during labor].
OBJECTIVE
To assess the predictive value of serial monitoring fetal scalp tissue pH value (tpH) during labor.


METHODS
Fifty two primipara with singleton and cephalic presentation were recruited during their active phase of labor after rupture of membrane. Their fetal scalp tpH were determined by a new type of alloy pH spiral electrode and pH-LS-1 sensor. These values were compared with the umbilical blood pH values (bpH) measured immediately after delivery.


RESULTS
The fetal tpH values were significantly positive correlated with the bpH values (r = 0.822 and 0.725). The incidence of neonate asphyxia in tpH >or= 7.20 group was significantly lower than those to tpH<7.15 group. No adverse effect was observed in this study.


CONCLUSIONS
Determination of fetal scalp tpH during labor is of predictive value and harmless fro detecting fetal distress.
Li
W
W
Xiehe Hospital of Tongji Medical University, Wuhan.
Li
T
T
Ding
C
C
D001826:Body Fluids / Q000378:metabolism; D005110:Extracellular Space / Q000378:metabolism; D005260:Female; D005316:Fetal Distress / Q000175:diagnosis*; D005323:Fetal Monitoring / Q000379:methods; D006801:Humans; D006863:Hydrogen-Ion Concentration; D011247:Pregnancy; D011296:Prenatal Diagnosis; D011446:Prospective Studies; D012535:Scalp; D012867:Skin / Q000378:metabolism*