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  • Title: Oxytocin labor stimulation of twin gestations: effective and efficient.
    Author: Fausett MB, Barth WH, Yoder BA, Satin AJ.
    Journal: Obstet Gynecol; 1997 Aug; 90(2):202-4. PubMed ID: 9241293.
    Abstract:
    OBJECTIVE: To test the hypothesis that oxytocin labor stimulation of twin gestations is similar to that of singletons regarding dosage, time, complications, and ability to achieve vaginal delivery. METHODS: This retrospective investigation included 124 gravidas receiving oxytocin for augmentation or induction of labor. Sixty-two women with twin gestations were matched by parity, cervical dilation at initiation of oxytocin, gestational age, oxytocin dosage regimen, and indications for oxytocin to controls with singleton pregnancies. Outcome variables included maximum dosage of oxytocin, incidence of hyperstimulation and fetal heart rate (FHR) abnormalities, time from oxytocin to delivery, cesarean deliveries, and maternal and neonatal outcomes. Statistical analysis was done using McNemar test, paired t test, and Wilcoxon signed-rank test for paired samples. RESULTS: Women with twin pregnancies and those with singletons responded similarly regarding maximum oxytocin dosage (21 +/- 1.5 and 18 +/- 2.4 mU/minute, respectively, P = .1), time from oxytocin to delivery (7.0 +/- 0.8 and 6.7 +/- 0.6 hours, respectively, P = .88), and successful vaginal delivery (90% and 90%, respectively). Oxytocin stimulation of twins resulted in fewer interruptions of the infusion for FHR abnormalities (5% compared with 26%, odds ratio [OR] 0.27, 95% confidence interval [CI] 0.16, 0.47) and hyperstimulation (6% compared with 18%, OR 0.19, 95% CI 0.36, 0.99). CONCLUSION: Twin gestation has no adverse impact on the effectiveness or efficiency of oxytocin labor stimulation. Twin pregnancy seems to be associated with fewer side effects.
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