[Induction of labour (author's transl)].

Labour can be induced by different methods: there are conductive, indirect and direct approaches. Conductive techniques are reversible and, as a rule, successful only in women approaching term. Indirect techniques, i.e. low and high amniotomy, are irreversible; they should be carried out only for a precise indication and are associated with certain hazards. Direct techniques, i.e. administration of oxytocin and, recently, of prostaglandins, need an intravenous infusion. The dosage of the drug per minute differs according to the obstetrical situation and the aim of the approach. Calculated statistical data of the tonus, the intensity, the frequency and the uterine activity were summarized in order to evaluate the effect of induction of labour. The induction of labour is associated with hazards and risk to the fetus and/or the mother. Labour induction must be avoided in obstetrical situations which preclude a vaginal delivery. The necessity of labour induction occurs primarily under circumstances in which the further continuation of pregnancy is associated with increased hazards to the mother and/or the child.