4.6 Article Retracted Publication

被撤回的出版物: Sildenafil Citrate Therapy for Oligohydramnios A Randomized Controlled Trial (Publication with Expression of Concern. See vol. 134, pg. 426, 2019) (Retracted article. See vol. 135, pg. 980, 2020)

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OBSTETRICS AND GYNECOLOGY
卷 129, 期 4, 页码 615-620

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LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/AOG.0000000000001928

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OBJECTIVE: To compare sildenafil plus hydration with hydration alone in improving the amniotic fluid index and neonatal outcomes in pregnancies complicated by idiopathic oligohydramnios ( amniotic fluid index less than 5 cm without underlying maternal or fetal causes and with normal fetal growth). METHODS: This was an open-label randomized trial for women carrying singleton pregnancies at 30 weeks of gestation or more with idiopathic oligohydramnios detected during routine ultrasonogram. Women received either oral sildenafil citrate (25 mg every 8 hours) plus intravenous infusion of 2 L isotonic solution or fluids only until delivery. The primary study outcome was the amniotic fluid volume at 6 weeks of follow-up or the final volume before delivery, whichever occurred first. Secondary outcomes were duration of pregnancy prolongation, mode of delivery, and select neonatal outcomes. The study was powered to detect a 45% difference between groups, so, at an a level of 0.05 and 80% power, a sample size of 167 women was required. RESULTS: From February 24, 2015, through April 2016, 196 women were screened and 184 were randomized. Follow-up was completed in 166 (90%): 82 in the sildenafil group and 84 in the hydration group. Baseline characteristics were similar between groups. The amniotic fluid volume was higher in the sildenafil group at the final assessment (11.5 compared with 5.4 cm, P=.02). The sildenafil group delivered later (38.3 compared with 36.0 weeks of gestation, P=.001), had a lower rate of cesarean delivery (28% compared with 73%), and their neonates were less likely to be admitted to the neonatal intensive care unit (11% compared with 41%, P=.001). CONCLUSION: Sildenafil citrate increases amniotic fluid volume in pregnancies complicated by oligohydramnios.

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