Abstract
The venous volume of the lower legs was examined plethysmographically in 60 primigravidae, grouped according to duration of pregnancy. The three periods were 9–13 weeks (Group A), 15–22 weeks (Group B) and 36–41 weeks (Group C). In addition to the examination during pregnancy, in Group A examinations were performed 1 day and 2 weeks after abortion, while in Groups B and C the examinations were made 2 weeks after abortion and delivery respectively. The recordings were made at venous occlusion pressures of 40, 60 and 80 mmHg. Contrary to the information given in the literature on gravidae, it has not been possible to detect any difference in the venous volume of the lower legs during primipregnancy.