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  • Title: Correlation of magnesium levels in cord blood and maternal serum among pre-eclamptic pregnant women treated with magnesium sulfate.
    Author: Boriboonhirunsarn D, Lertbunnaphong T, Suwanwanich M.
    Journal: J Obstet Gynaecol Res; 2012 Jan; 38(1):247-52. PubMed ID: 22136102.
    Abstract:
    AIM: The aim of this study was to determine the correlation between cord blood and maternal serum magnesium levels among pre-eclamptic pregnant women treated with magnesium sulfate. MATERIALS AND METHODS: A total of 36 pregnant women, >28weeks' gestation, diagnosed with pre-eclampsia and treated with magnesium sulfate (MgSO(4) ), were enrolled. Maternal and umbilical cord blood samples were obtained immediately after delivery and sent for determination of magnesium and calcium levels. RESULTS:   Mean maternal age was 27.4±6.4years and mean gestational age was 38.1±1.8weeks. Most were diagnosed with pre-eclampsia (94.5%), others had HELLP syndrome. Mean total MgSO(4) the women received was 14.4±6.0g and mean duration of treatment was 5.1±3.3h. Mean maternal serum and cord blood magnesium levels were 2.2±0.4 and 1.8±0.3mmol/L, respectively. Maternal magnesium and calcium levels showed significant positive correlation with their levels in cord blood (P<0.001). Significant positive correlation was found between total dose as well as duration of MgSO4 and maternal and cord blood magnesium levels (P<0.001) but was inversely correlated with maternal and cord blood calcium levels. CONCLUSIONS: Maternal serum magnesium and calcium levels were correlated with cord blood levels in pre-eclamptic pregnant women who received MgSO4 therapy.
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