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  • Title: The use of an "unnatural" prostaglandin in the termination of pregnancy.
    Author: Gillespie A, Beazley JM, van Dorp DA.
    Journal: J Obstet Gynaecol Br Commonw; 1971 Apr; 78(4):301-4. PubMed ID: 5558313.
    Abstract:
    An unnatural prostaglandin (PG) (prepared by biosynthesis using the method described by Vonkerman et al.) was used to terminate midtrimester pregnancy in 3 primiparous patients aged 21-24. The PG was administered intravenously using a Palmer slow infusion pump. The patients were monitored continuously with particular attention given to pulse, respiration, blood pressure, uterine contractions and cervical dilatation. All 3 cases successfully aborted. Effective infusion rate was similar to that of PGE1 and PGE2 (5-6 mcg/minute) and side effects were trivial (minimal skin flushing, vomiting, mild urticarial reaction). 2 of the patients aborted 8 and 22 hours after infusion stopped without being conscious of continuing uterine activity; the 3rd patient necessitated infusion on the 2nd day and exhibited increased response to the infusion; however, the PG supply was exhausted and syntocinon infusion facilitated the complete abortion. This study shows that this synthetic prostaglandin containing an uneven number of carbon atoms is pharmacologically active and can induce contractions in the intact human pregnant uterus.
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