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Related Experiment Videos

Drug therapy during pregnancy.

J R Niebyl1

  • 1Department of Obstetrics and Gynecology, University of Iowa Hospitals and Clinics, Iowa City 52242.

Current Opinion in Obstetrics & Gynecology
|February 1, 1991
PubMed
Summary

Exposure to certain anticonvulsants like carbamazepine may cause fetal dysmorphic syndromes. Heparin use in pregnancy can lead to reversible osteoporosis, while newer tocolytics like nifedipine and indomethacin offer effective treatment options with fewer side effects.

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Randomized comparative trial of indomethacin and ritodrine for the long-term treatment of preterm labor.

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Area of Science:

  • Obstetrics and Gynecology
  • Pharmacology
  • Teratology

Background:

  • Anticonvulsant medications, including carbamazepine, are associated with fetal dysmorphic syndromes.
  • Long-term heparin therapy during pregnancy can induce reversible osteoporosis.
  • Ritodrine, a tocolytic agent, has established pharmacokinetic profiles guiding its use.

Purpose of the Study:

  • To review the potential teratogenic effects of anticonvulsants.
  • To examine the impact of long-term heparin use on maternal bone density.
  • To evaluate the efficacy and safety of alternative tocolytic agents and treatments for polyhydramnios.

Main Methods:

  • Literature review of studies on anticonvulsant exposure and fetal outcomes.
  • Analysis of pharmacokinetic data for ritodrine to optimize infusion regimens.
  • Comparative review of nifedipine and indomethacin as tocolytics versus ritodrine.
  • Assessment of indomethacin's safety and efficacy in treating polyhydramnios.

Main Results:

  • Carbamazepine is identified as a recent example linked to fetal dysmorphic syndromes, with genetic susceptibility playing a role.
  • Long-term heparin use in pregnancy may cause osteoporosis, which is reversible.
  • Nifedipine demonstrates comparable efficacy to ritodrine with fewer side effects.
  • Indomethacin is an effective tocolytic with no significant side effects observed within 48 hours of treatment and is also effective for polyhydramnios.

Conclusions:

  • Genetic factors may influence fetal susceptibility to anticonvulsant-induced malformations.
  • Heparin-induced osteoporosis during pregnancy is a reversible condition.
  • Nifedipine and indomethacin represent promising alternatives to ritodrine for preterm labor management.
  • Indomethacin is a safe and effective option for treating polyhydramnios.

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