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Tocolysis in the management of third trimester bleeding.
D N Saller1, D A Nagey, M J Pupkin
1Department of Obstetrics and Gynecology, University of Maryland School of Medicine, Baltimore.
Summary
Tocolysis may be safe for preterm pregnancies with placenta previa or abruption. Prolonging gestation by at least two weeks with tocolysis resulted in no fetal or neonatal deaths in this study.
Area of Science:
- Obstetrics and Gynecology
- Maternal-Fetal Medicine
Background:
- Placenta previa and abruptio placentae are significant causes of antepartum hemorrhage.
- Tocolysis is often used to prolong gestation in preterm pregnancies, but its safety in the context of bleeding due to these conditions is not well-established.
Purpose of the Study:
- To evaluate the safety and efficacy of tocolysis in selected preterm patients diagnosed with placenta previa or abruptio placentae.
Main Methods:
- Retrospective analysis of 15 patients receiving tocolysis for placenta previa or abruptio placentae.
- Data collected included admission diagnosis, tocolysis use, gestational age at birth, and fetal/neonatal outcomes.
Main Results:
- No fetal deaths occurred after admission.
- Two neonatal deaths were recorded, both related to extreme prematurity in infants born within 1 day of maternal admission.
- Eight patients had their pregnancies prolonged by at least two weeks with tocolysis; this subgroup experienced no fetal or neonatal deaths.
Conclusions:
- Tocolysis appears to be a safe intervention for preterm patients experiencing bleeding with placenta previa or abruptio placentae.
- Prolonging gestation by two weeks or more using tocolysis in this cohort was associated with improved neonatal outcomes.
- Further prospective, randomized trials are needed to compare tocolysis with expectant management or immediate delivery.