Level of magnesium in the maternal serum, the umbilical serum and in the amniotic fluid

Abstract

Objective: To explore the level of magnesium in the maternal serum, the umbilical serum and the amniotic fluid in the third trimester of pregnancy and during the C-section.

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Method: The level of magnesium was measured with tintometer method, without deproteinization, by means of the reagents (Olvex diagnosticum).

Results: 25 pregnant women at 26 weeks to 40 weeks gestation, aged from 18 to 40 years old, 13 suffered IDDM, 14 suffered H.P.O., 9 suffered placental insufficiency, 5 suffered urogenital infection, 1-suffered NIDDM, 1-suffered gestational diabetes. The concentration of magnesium in the umbilical serum and amniotic fluid in comparison with the concentration of magnesium of the maternal serum varies differently. Correlation gravida-fetus decreases in 31,5% (0.69±0.04 mmol/l), increases in 26.4% (0.55±0.04 mmol/l) P < 0.06 women. Correlation gravida-amniotic fluid decreases in 80% (0.785±0.03 mmol/l), increases in 15 % (0.573±0.27 mmol/l) P <0.01 women. Correlation fetus-amniotic fluid decreases in 64.2% (0.76±0.031 mmol/l), increases in 7.3 % (0.56±0.035 mmol/l) P <0.001 women.

Conclusions: The reliable decreasing of magnesium concentration in umbilical serum, and amniotic fluid was determined in comparison with the magnesium concentration of the maternal serum.