Safety issues of anaesthesia care in obstetrics are extremely important, because they influence the possibility of reducing the complications in mothers, foetus and newborns. Monitoring of haemodynamics is a necessary part of anaesthesia care. A correct estimation of haemodynamics in pregnant with gestosis is possible only when analyzing the rates of peripheral resistance and a cardiac index. 72 pregnant patients with gestosis were examined, 48 of above had a moderate form. In latter group, a hypokinetic type of haemodynamics was revealed in 4% of patients, normokinetic type in 86% and a hyperkinetic type in 10%. In 24 patients with severe gestosis the distribution was as 82%, 18% and 0% respectively. Measuring the central haemodynamic parameters with a bio-impedance spectrometry allows to choose the hypotensive therapy in a more accurate way to ensure the control of its effectiveness, and to consider the need in early delivery in proper time when in aggravation of gestosis, providing better outcomes for women and children.