Volume 65, Issue 7 (4 2007)                   Tehran Univ Med J 2007, 65(7): 43-46 | Back to browse issues page

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Hantoushzadeh S, Shariat M, Azamati F, Abdolmotallebi F. Magnesium blood levels and preterm labor: a prospective clinical trial. Tehran Univ Med J. 2007; 65 (7) :43-46
URL: http://tumj.tums.ac.ir/article-1-757-en.html
Abstract:   (5887 Views)
Background: Over the past two decades we have seen a marked increase in the survival of very low birth weight infants. This increase in survival has been attributed to increased use of corticosteroids, regionalization of perinatal care, improved methods of mechanical ventilation, availability of exogenous surfactant, and improved nutritional therapy. However, the reduction in mortality has not been accompanied by a reduction in neonatal morbidity or long-term handicaps. Preterm labor is a major issue in Iran. Besides various etiologies, preterm labor may be due to a biochemical alteration, such as magnesium. It is known that magnesium plasma levels fall during pregnancy. Since magnesium has an inhibitory role on myometrial contractions attention has been paid to the role of magnesium deficiency in preterm labor. Hypomagnesemia leads to neuromuscular hyperexcitability resulting in muscle cramps and uterine hyperactivity. The aim of this study was to determine the relationship between serum magnesium levels and preterm delivery in order to circumvent the high morbidity of preterm delivery by early diagnosis of this deficiency.
Methods: Serum magnesium was measured in 42 cases of preterm labor of idiopathic etiology (28-37 weeks) and 42 normal pregnancies at the same gestational age.
Results: Hypomagnesemia was variable in preterm labor cases, with only slightly low values in normal pregnant women.
Conclusion: Our study indicates that serum magnesium levels during pregnancy can be a valuable predictive tool for preterm labor. Hypomagnesemia must be considered in all pregnant women with preterm labor and supplementation must be provided effectively.
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