Within 10 minutes, the fetal heart rate is counted or recorded during pauses and during the bout with an interval of 2 minutes. Further for 15 minutes, a continuous inhalation of 100% oxygen concentration is carried out using a sealed mask.
Discussions about the role and significance of the preliminaries are held in literature long ago. A great deal of attention to this problem is due to its serious importance for preventing the occurrence of abnormalities of labor.
The pathological preliminar period is characterized by the following clinical signs: painful, disturbing diurnal rhythm of sleep and wakefulness, alternating in strength and sensation of contraction.
The data available in the literature on the contractile activity of the uterus in the preliminar period are few and contradictory. This, probably, explains the data of the clinic.
For practical obstetrics, the special features of the subsequent course of labor are important, depending on the duration of the preliminaries preceding them.
Until now, there is no single tactic for managing pregnant women with preliminaries. Many domestic obstetricians believe that during the preliminar period, the use of tranquilizers, analgesics, antispasmodics, estrogens is indicated.
Childbirth is a complex physiological process, during which the contents of the uterus (fetus, amniotic fluid, placenta and membranes) are expelled.
The method of two-channel internal hysterography allows prediction of labor for the whole process of birth. In this case, it is sufficient to record intrauterine pressure in 2 channels within 30-60 minutes from the onset of labor, and then compare the recordings of intrauterine pressure in the region of the bottom and the lower segment of the uterus
Studies of the pH of amniotic fluid were conducted in 160 maternity wards during the normal course of the birth act. The duration of labor in primiparous animals was 12 h 42 min + 31.7 min, in repetitious 6 h 05 min ± 4.85 min.
Births that complete pregnancy are the stage in which the responsibility for a successful outcome for the mother and fetus is borne by the doctor of the maternity hospital.