[Differences in blood flow in maternal blood vessels in normal pregnancies and gestosis].

Clinical studies showed a lower blood flow in renal und uterine vessels in gestotic pregnancies. A comparison was therefore made between three maternal vessels (uterine, renal und thyroideal vessels) in normal and gestotic pregnant and non-pregnant women to show if the higher vessel resistance in gestotic pregnancies is a local or systemic event. There was a significant difference between the collectives in the blood flow of renal and uterine vessels, but no difference between the resistance in thyroideal vessels. The difference in the blood flow of renal vessels was higher than the difference in uterine vessels in the pregnant women. The increasing resistance, therefore, seems to be a local event at the beginning of the gestotic pattern of signs and symptoms. The higher resistance in the renal vessels allows, the conclusion that the kidney might be the important organ in the origin of the gestotic pattern of signs and symptoms.