[Doppler examination as an indication for surgical delivery. A case report].

Pathological alterations in foetoplacental circulation can lead to zero flow or even to reverse flow in the diastole. In these cases, a high fetal risk can be expected. Based on our Doppler measurements, we recommend by zero flow in the umbilical artery or foetal aorta, that the childbirth could be postponed under an observant attitude using intensive controls (CTG, foetal movements), but pregnancy has to be terminated immediately by Caesarean section at the first sign of reverse flow.