[Intra-uterine pressure measurements during early pregnancy using endoradioprobes].

The intrauterine pressure was determined by means of endoradiosonde in 42 pregnant women before induced abortion. It was measured the tonus and after stimulation with oxytocin the liminal value the basic tonus and the highest increase of pressure. The values of pressure were higher after artificial rupture of the amnion than before. Telemetering of intrauterine pressure is an advantageous method.