Оценка электролитного баланса и оксиметрии пуповинной крови при рождении детей с задержкой роста

Abstract

Objective. To study the characteristics of oximetry and electrolyte balance of umbilical cord arterial and venous blood in newborns with fetal growth restriction. Patients and methods. Laboratory analysis of oximetry and electrolyte balance in blood samples from the umbilical artery and vein in 40 newborns after vaginal delivery at term and uncomplicated pregnancy (the control group) and in 30 newborns with fetal growth restriction after vaginal delivery at term (the study group) was performed. Results. The analysis revealed that the levels of FHbF, pO2, sO2, FO2Hb, FCOHb, cCa2+ and ctO2 in umbilical cord venous blood in the study group were significantly higher than in the control group, while the levels of pCO2, p50, FHHb were significantly lower (p < 0.05). The comparative evaluation of pH, Hct, ctHb, cK+, FMetHb, cNa+, cCl–, mOsm showed no differences between the groups (p > 0.05). The levels of pCO2, FHbF, pO2, sO2, FO2Hb, FCOHb and ctO2 in umbilical cord arterial blood in the study group were significantly higher than in the control group, while the levels of p50, FHHb were significantly lower (p < 0.05). The comparative evaluation of pH, Hct, ctHb, FMetHb, cNa+, сК+, сСа2+, cCl–, mOsm showed no differences between the groups (p > 0.05). Conclusion. Statistically significant differences between the parameters of oximetry and electrolyte balance of umbilical cord arterial and venous blood in fetal growth restriction provide additional information for objective assessment of the newborn’s physical condition. Key words: blood gas analysis, umbilical cord arterial and venous blood, gas-electrolyte composition, gas analyzer, fetal growth restriction, umbilical cord blood oximetry