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Related Experiment Videos

Hyperosmolar urea for elective midtrimester abortion. Experience in 1,913 cases.

R T Burkman, M F Atienza, T M King

    American Journal of Obstetrics and Gynecology
    |May 1, 1978
    PubMed
    Summary

    Midtrimester abortions were effectively induced using intra-amniotic hyperosmolar urea combined with oxytocin or prostaglandin F2alpha. This method demonstrated favorable safety and efficacy compared to other midtrimester abortion procedures.

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    Area of Science:

    • Reproductive Medicine
    • Obstetrics and Gynecology
    • Pharmacology

    Background:

    • Midtrimester abortions require safe and effective methods.
    • Previous methods like saline amnioinfusion and dilatation and evacuation have associated risks.
    • Alternative induction agents are continuously being evaluated for improved safety and efficacy.

    Purpose of the Study:

    • To evaluate the efficacy and safety of intra-amniotic hyperosmolar urea combined with intravenous oxytocin or prostaglandin F2alpha for midtrimester abortion.
    • To compare the complication rates of this method with other established procedures.

    Main Methods:

    • A study involving 1,913 patients undergoing elective midtrimester abortion.
    • Administration of intra-amniotic hyperosmolar urea (59.7%) augmented with intravenous oxytocin or varying doses of prostaglandin F2alpha (20 mg, 10 mg, or 5 mg).

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    Main Results:

    • Successful abortion induction was achieved in the majority of patients.
    • Injection-abortion intervals ranged from 13.70 to 21.49 hours.
    • Failure rates varied between 0.7% and 6.7% across different treatment regimens.
    • The complication rate was favorable, even in patients with pre-existing medical conditions.

    Conclusions:

    • Intra-amniotic hyperosmolar urea combined with oxytocin or prostaglandin F2alpha is an effective method for inducing midtrimester abortion.
    • This regimen offers a favorable safety profile compared to saline amnioinfusion or dilatation and evacuation.
    • The method is a viable option for patients requiring midtrimester pregnancy termination, including those with comorbidities.