A comparative study of umbilical artery blood acidity with gestational age during amniotic sac rupture in Imam Sajjad (AS) Yasouj Hospital deliveries.

Articles in Press

Document Type : Original Article

Authors

1 Department of Internal Medicine, School of Medicine” and “Social Determinants of Health Research Center” Yasuj University of Medical Sciences, Yasuj, Iran

2 Department of Midwifery, Faculty of Medicine, Yasouj University of Medical Sciences, Yasouj, Iran

3 Department of Obstetrics and Gynecology, School of Medicine” and “Social Determinants of Health Research Center”, Yasuj University of Medical Sciences,

4 Midwifery Master's student, Department of Midwifery, Faculty of Medicine, Yasouj University of Medical Sciences, Yasouj, Iran

5 Medical doctor student, Department of Medicine, Faculty of Medicine, Yasouj University of Medical Sciences, Yasouj, Iran

10.22038/ijogi.2025.84689.6296

Abstract

Many factors make mothers prone to early rupture of the fetal membranes and the birth of premature babies. Premature rupture of the water sac complicates approximately 10% of pregnancies. Umbilical cord blood gases are examined to evaluate the response of the fetus to the stress of childbirth. Severe acidemia can be accompanied by increased infant mortality and damage to the infant's neurodevelopment. Considering the importance of the problem, we decided to compare the acidity of the umbilical artery blood with the gestational age during the amniotic sac rupture at Imam Sajjad (AS) Yasouj Hospital.

Methodology: This study was a full-count study. The inclusion criteria include all mothers who visited Imam Sajjad Hospital in Yasuj city in 2001 with a ruptured amniotic sac. One-way ANOVA and non-parametric Kruskal-Wallis tests were used based on whether the data distribution was normal. It was analyzed by post hoc test with Bonferroni correction in SPSS version 28 software for pairwise comparisons.

Results: There was a significant difference in the distribution of umbilical artery acidity at different times of rupture of the water sac (P-value=0.013) (P-value=0.038).

Conclusion: This study showed that there is a significant difference between newborn blood gases in vaginal delivery and there is a substantial relationship between Apgar score and umbilical cord blood gases in the first hour of birth. Considering the importance of umbilical cord pH, it is recommended to measure The pH of the umbilical artery to determine the prognosis of stressed newborns in normal delivery and emergency cesarean section

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The Iranian Journal of Obstetrics, Gynecology and Infertility

Articles in Press, Accepted Manuscript
Available Online from 21 October 2025

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