[Regularity of changes in amplitude characteristics of electrohysterography of healthy pregnant women during third trimester].

This research is aimed to establish regularity of changes of the peak characteristics of uterus bioelectric activity according to outside multichannel electrohysterography of healthy pregnant women in the third trimester. The research of uterus bioelectric activity of women with physiological pregnancy at 28 to 40 weeks of gestation was carried out with use of electrophysiological methods. Three groups of women were distinguished according to their pregnancy duration. The first group included 12 women with pregnancy duration for 26-28 weeks, the second group--49 women with duration of gestation for 29-37 weeks, the third group--48 women with pregnancy duration for 38-40 weeks. The result of this research is receiving of preliminary specifications of peak electrogisterogramme characteristics and establishing the fact that the later pregnancy is, the bigger the average amplitude of electrogisterogramme is.