American journal of obstetrics and gynecology
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Am. J. Obstet. Gynecol. · Sep 1994
Randomized Controlled Trial Comparative Study Clinical TrialComparison of prophylactic angiotensin II versus ephedrine infusion for prevention of maternal hypotension during spinal anesthesia.
Our purpose was to study the efficacy of ephedrine versus angiotensin II prophylactic infusions to counter maternal hypotension that occurs during spinal anesthesia at cesarean delivery. ⋯ In the healthy term fetus there is an advantage in using angiotensin II to maintain maternal blood pressure during regional anesthesia.
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Am. J. Obstet. Gynecol. · Aug 1994
Comparative StudyExpectant management of preterm premature rupture of the membranes.
Our purpose was to (1) evaluate expectant management of preterm premature rupture of the membranes between 20 and < 36 weeks' gestation and (2) compare outcomes in service and private populations. ⋯ Over 47.8% of the patients continued their pregnancy beyond 48 hours, and in 12.9% of cases expectant management of preterm premature rupture of membranes prolonged the pregnancy by > or = 7 days. The maternal infection rate is greater before 28 weeks' gestation and is associated with higher fetal-neonatal mortality. Status has little impact on outcome. Expectant management is not detrimental to quality of survival. Survival probability increases at a more rapid rate with preterm premature rupture of membranes after 22 weeks of gestation.
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Am. J. Obstet. Gynecol. · Aug 1994
Low amniotic fluid glucose levels are a specific but not a sensitive marker for subclinical intrauterine infections in patients in preterm labor with intact membranes.
The purpose of this study was to evaluate the ability of a low amniotic fluid glucose level, as defined by previously published thresholds, to identify a subclinical intrauterine infection in women in preterm labor with intact membranes. ⋯ Low amniotic fluid glucose levels are a specific but not a sensitive marker for either intraamniotic or extra-amniotic intrauterine infections in patients with preterm labor.
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Am. J. Obstet. Gynecol. · Jul 1994
Low concentrations of vaginal fetal fibronectin as a predictor of deliveries occurring after 41 weeks.
This study sought to determine whether low concentrations of fetal fibronectin in the cervical and vaginal secretions of patients at 39 weeks' gestation predicted pregnancies progressing beyond 41 weeks' gestation. ⋯ A vaginal fetal fibronectin value > or = 60 ng/ml at 39 weeks' gestation is predictive of delivery within 10 days, whereas values < 60 ng/ml identify 95% of pregnancies progressing past 41 weeks' gestation. This data may allow for the prediction of postdates pregnancies, thus facilitating appropriate obstetric interventions.