[Method of delivery and condition of newborn at 25-30 weeks of gestation].

SUMMARY: The aim of this study is to assess the impact of method of delivery--per vias naturales and by CS on condition of preterm newborn < or =30 w.g. MATERIALS AND METHODS: Survey is on a prospective basis for the period 01.2008-12.2009. Total of 95 pregnancies are included meeting the following criteria: pregnancy with a single fetus in occiput position with birthweight appropriate for gestational age 25-30 w.g. 63 of all pregnancies completed by birth per vias naturals and 32 through CS (22 emergency CS and 10 in the planned order). The condition of newborns is found immediately after birth by Apgar score at 1st and 5th minute and the values of pH, BE and blood gases in the blood sample from a.umbilicalis. RESULTS: Comparison of the average values of Apgar 1 st and 5th min, pH, BE, pO2 and pCO2 in preterm born per vias naturals and by CS showed statistically significant difference in three indicators pH, BE and pCO2 and highest frequency of acidosis in an emergency operative abdominal delivery. Juxtapositioning the groups vaginal birth and CS planning in order not found statistically significant differences in BE (p = 0.616), pH (p = 0.399) and pCO2 (p = 0.448). This led to the initial conclusion that the state of newborns in both groups is the same irrespective of birth. After interpretation of the ABS in each case it has been established substantial difference in frequency of uncompensated (0% vs. 19.4%) and compensated metabolic acidosis (50% vs. 36.8%) in premature born through CS in planning orderliness and per vias naturales. CONCLUSION: The method of delivery is a factor which influences the adjacent state of prematurity after birth. The highest incidence of hypoxia is associated with CS in terms of urgency. In comparison with vaginal birth, planned CS in order seems to be a favorable method of delivery for preterm fetus.