The contents of macro- and microelements in blood serum in pregnant and laboring women with weak contractions

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Abstract

Objective: To define the characteristics of the contents of macro- and microelements in blood serum before labor and in first stage of labor in women with weak contractions.

Materials and methods: The study included 86 women with full-term pregnancy, who were divided into 2 groups after delivery depending on the characteristics of the course of labor: the main group included the patients with weak contractions (n=46), the comparison group included the women, in whom labor and delivery happened without without anomalies labor contractions (n=40). Serum potassium, sodium, ionized calcium, total calcium, magnesium, inorganic phosphorus, and iron levels were analyzed before labor and in the first stage of labor.

Results: The women with weak contractions before labor have higher serum levels of potassium, iron, potassium-to-magnesium ratio and lower sodium-to-potassium ratio versus women with normal physiologic birth. In women with hypotonic uterine contractions in labor, magnesium levels are low and calcium to magnesium ratio and potassium to magnesium ratio is higher versus the comparison group.

Conclusion: In women with weak labor contractions, there are changes of macro- and microelement contents in blood serum. The obtained results may indicate the reasons for inadequate excitability and contractility of the myometrium in these patients.

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About the authors

Elena V. Melnik

Belarusian Medical Academy of Postgraduate Education

Author for correspondence.
Email: ew.melnik@mail.ru
ORCID iD: 0009-0004-5593-3868

PhD, Senior Lecturer at the Department of Obstetrics and Gynecolog

Belarus, 220013, Minsk, P. Brovki str., 3-3

Sergey L. Voskresensky

Belarusian Medical Academy of Postgraduate Education

Email: slv5451@yandex.ru

Dr. Med. Sci., Professor at the Department of Obstetrics and Gynecology

Belarus, 220013, Minsk, P. Brovki str., 3-3

Polina T. Zhurko

Belarusian Medical Academy of Postgraduate Education

Email: pavlinats@mail.ru

Researcher, Department of Metabolic Diagnostics, Research Laboratory

Belarus, 220013, Minsk, P. Brovki str., 3-3

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