ACID-BASE BALANCE AND GAS COMPOSITION OF THE UMBILICAL CORD BLOOD IN THE FULL-TERM NEWBORNS WITH A LOW APGAR SCORE
https://doi.org/10.34822/2304-9448-2022-3-32-39
Abstract
The study aims to determine the relation between the indicators of acid-base balance and umbilical cord blood gases in full-term newborns with a low Apgar score. Materials and methods. A retrospective cohort study of 273 newborns in the Perinatal Center of the Khanty-Mansiysk was conducted by random selection for the period of 2015–2018. The main group consisted of 63 full-term newborns with a low Apgar score of < 7 at the 1st
minute of life. The comparison gr oup consisted of 210 full-term newborns with an Apgar score of > 7 at the 1st minute after birth. Born at 38–42 weeks from single pregnancies, all newborns showed no malformations. As soon as the umbilical cord was clamped and cut, the blood samples were taken from the umbilical vein to be analyzed with an automated EASYSTAT analyzer (Medica, USA). Results. A low Apgar score at the 1st minute refl ects the state of acidosis at birth in 62 % of cases, at the 5th minute – in 81 %. Signifi cant cord blood acidosis (pH ≤ 7.1) was observed 2 times more often in newborns with a low Apgar score at the 5th minute of life than at the 1st minute (33.3 and 68.8 %, p = 0.010). The frequency of neonatal acidosis, even with a normal Apgar score at the 5th minute, was detected in 4.3 % of cases (pH ≤ 7.1), and severe case of acidosis (pH ≤ 7.0) in 0.8 %. An Apgar score correlated more closely with pH of blood than with acid-base balance and umbilical cord blood gases. It is recommended to determine the pH of umbilical cord blood as it refl ects the condition of the newborn more accurately than other
indicators.
About the Authors
T. N. UglevaRussian Federation
Doctor of Sciences (Medicine), Associate Professor
E-mail: tatjana.ugleva@yandex.ru
V. G. Tarabrina
Russian Federation
Neonatologist-Resuscitator
E-mail: valy19894@mail.ru
L. A. Alekseenko
Russian Federation
Neonatologist-Resuscitator
E-mail: allexa33@mail.ru
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Review
For citations:
Ugleva T.N., Tarabrina V.G., Alekseenko L.A. ACID-BASE BALANCE AND GAS COMPOSITION OF THE UMBILICAL CORD BLOOD IN THE FULL-TERM NEWBORNS WITH A LOW APGAR SCORE. Vestnik SurGU. Meditsina. 2022;(3 (53)):32-39. (In Russ.) https://doi.org/10.34822/2304-9448-2022-3-32-39