American journal of obstetrics and gynecology
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Am. J. Obstet. Gynecol. · Jan 1988
The role of cervical cerclage in the management of preterm premature rupture of the membranes.
The presence of a cervical cerclage at the time of preterm premature rupture of the membranes potentially complicates this already difficult management problem. An analysis of 44 patients presenting with preterm premature rupture of the membranes and cervical cerclage was conducted. Twelve patients were immediately delivered because of fetal distress, labor, or mature fetal pulmonary studies. ⋯ The latency period from premature rupture of the membranes until delivery was not affected by the presence or removal of the cerclage. There was no difference in infectious complications. These data suggest that the presence of a cervical cerclage at the time of preterm premature rupture of the membranes does not increase the risk of delivery or infectious morbidity as long as the cerclage is removed early in the management protocol.
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Am. J. Obstet. Gynecol. · Jan 1988
Neuromuscular transmission studies in preeclamptic women receiving magnesium sulfate.
The purpose of the study was to evaluate the neuromuscular transmission defect in preeclamptic women receiving intravenous magnesium sulfate and to study the correlation of the degree of defect with serum magnesium and calcium levels. The study population included: group 1, 14 preeclamptic women receiving magnesium sulfate and undergoing induction of labor; group 2, six preeclamptic women studied in the postpartum period while receiving magnesium sulfate; and group 3, 10 normotensive women undergoing induction of labor. The neuromuscular transmission studies were performed with standard techniques before and during the administration of magnesium sulfate. ⋯ There was significant correlation between the degree of the neuromuscular transmission defect and serum magnesium levels, serum calcium levels, and the magnesium/calcium ratio in groups 1 and 2. All studies were normal in group 3. The findings confirm the occurrence of abnormal neuromuscular transmission in preeclamptic women receiving magnesium sulfate, and the intensity of the defect correlates significantly with increased serum magnesium levels and decreased serum calcium levels.