[Cardiotokography, obstetrical decission, and perinatological results]

For clinical use we divide the cardiotocographic parameters in 4 groups with the following percentages for antenatal or intranatal period. Normal criterias (antenatal: 80%; intranatal: 40%) Warn symptoms (antenatal: 5%; intranatal: 10%) Umbilico-placental circulatory disturbances (antenatal: 6%; intranatal: 45%) Signs of hypoxia (antenatal: 9%; intranatal: 5%). Variable decelerations are typically for disturbances in the umbilico-placental circulation. The clinical reasons are as well cord compressions as uterine hyperactivity or supine hypotensive syndrom. A prospective management of labor is possible only by means of CTG. The fetal death during labor is avoidable. The number of fetal micro-blood-samplings was reduced (in our hospital 10%) and the feto-maternal relationship was included. The operative frequency is the result of objective obstetrical decisions. We have before and after introduction of fetal monitoring a constant frequency of caesarean sectio of about 3%. A rise in operative frequency simultaneously with the beginning of fetal monitoring is due by a high operative activity in cases of umbilico-placental circulatory disturbances. The rate of neurological findings in newborn infants can be decreased. This result is not valid in preterm or small for date infants.