Amniotic cavity accumulation of magnesium with prolonged magnesium sulfate tocolysis

G. D.V. Hankins, T. L. Hammond, E. R. Yeomans

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


In seven women, continuous intravenous tocolysis with magnesium sulfate for 4-28 days resulted in high amniotic fluid magnesium levels (10.54 mg% ± 1.83 SD). In all cases the amniotic fluid magnesium level greatly exceeded the maternal serum level in a sample collected simultaneously. Additionally, when amniorrhexis and delivery occurred within one hour of each other, the fetal magnesium levels uniformly exceeded the maternal levels in paired maternal and cord blood samples.

Original languageEnglish (US)
Pages (from-to)446-449
Number of pages4
JournalJournal of Reproductive Medicine for the Obstetrician and Gynecologist
Issue number6
StatePublished - 1991
Externally publishedYes

ASJC Scopus subject areas

  • Reproductive Medicine
  • Obstetrics and Gynecology


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