[Hypotension in pregnancy].

The authors have compared the data collected during pregnancy and delivery of 596 pregnant women suffering from hypotension with those of normotonic pregnant ones of the same number. Statistical analysis has proved that in the history of those with hypotension the occurence of abortions and premature deliveries is significantly more frequent as well as the untimely uterine activity and anemia. The rate of new-born infants under a birth weight of 2500 g and that of retarded babies and perinatal mortality are also higher. Based on data in the literature the authors have surveyed the possible causes of the development of hypotension during pregnancy. The results have shown that hypotension during pregnancy should be regarded as a risk factor.