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Review Article

Is chlorine and sodium levels in the amniotic fluid a new marker for fetal lung maturation and RDS severity?

ORCID Icon, ORCID Icon, ORCID Icon, ORCID Icon, ORCID Icon & ORCID Icon
Pages 3998-4003 | Received 08 Jul 2020, Accepted 01 Nov 2020, Published online: 24 Nov 2020
 

Abstract

Background

Amniotic fluid (AF) is a dynamic liquid whose contents vary according to the needs of the fetus. Levels of the amniotic components have been used in numerous studies as potential biomarkers to screen pregnancy-related abnormalities. As a reflection of Na+ and Cl levels of fetal lung fluid, amniotic fluid’s Na+ and Cl levels can be used as an indicator of lung maturation in the newborn period. This study aimed to investigate whether Na+ and Cl levels in the amniotic fluid would be a new marker to determine the severity of respiratory distress and pulmonary maturation in the newborn.

Methods

This prospective cohort study was conducted at Hacettepe University Neonatal Intensive Care Unit. One hundred twenty single infants who were delivered with the cesarean section between January 2015 and March 2016 were included. Na+ and Cl levels were measured from AF.

Results

There were 46 of 120 infants (33.3%) in Group-1 and 74 infants (66.7%) in Group-2. Na + and Cl levels of the AF of Group-1 were higher than Group 2 and this was statistically significant (p < .001/p: .01, respectively). Na+ and Cl levels of the AF were significantly higher in infants who needed surfactant (p < .001/p: .001, respectively).

Conclusion

Our results showed that Na+ and Cl levels of the AF can be used as an indicator of infant lung maturation.

Disclosure statement

None of the authors have any conflicts of interest in respect of the work presented in this paper.

Author contributions

All authors designed, supervised, and analyzed the study, and prepared the manuscript. All authors read and approved the final manuscript.

Data availability statement

All data generated or analyzed during this study are included in this published article.

Correction Statement

This article has been republished with minor changes. These changes do not impact the academic content of the article.

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