The relationship of heart rate patterns and tissue pH in the human fetus.
The relationship between different FHR patterns and fetal tissue pH in 68 high-risk gravidas in labor was analyzed. A tissue pH electrode was placed in the fetal scalp and tissue pH recorded on a fetal monitor every 15 seconds along with uterine contractions and continuous fetal heart rate. The tissue pH changes correlated with the FHR patterns in a manner consistent with current concepts of fetal stress. Trend monitoring of fetal tissue pH in labor may prove useful in the management of high-risk patients in labor.
D001034:Apgar Score; D005260:Female; D005312:Fetal Blood / Q000032:analysis; D005318:Fetal Heart; D005323:Fetal Monitoring / Q000295:instrumentation / Q000379:methods*; D005865:Gestational Age; D006339:Heart Rate; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007231:Infant, Newborn; D007743:Labor, Obstetric; D011247:Pregnancy