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  • Title: Vaginal pessary sharpens uterocervical angle in uterine prolapse during pregnancy. A case report.
    Author: Matsuda Y, Tagawa M, Shirai Y, Hattori M, Matsumine M, Matsumine H.
    Journal: J Obstet Gynaecol Res; 2022 Jan; 48(1):271-274. PubMed ID: 34704307.
    Abstract:
    A 37-year-old multiparous woman complained of uterine prolapse at 14 weeks of gestation. A silicone ring-shaped middle-size vaginal pessary (# 62 mm) was placed into the vagina to reduce prolapsed uterus. Because the cervical length became shortened at 25 weeks of gestation, we decided to start intramuscular administration of progesterone (250 mg) weekly. At 33 weeks of gestation, she complained of the vaginal pessary spontaneous falling out, so we inserted a vaginal pessary of the same size again. The uterocervical angle became acute, going from 100° to 60° after placing the vaginal pessary into the vagina. We took the vaginal pessary out at 37 weeks of gestation. The patient gave birth at 39 weeks by spontaneous vaginal delivery to a healthy baby. A vaginal pessary may help continue a pregnancy via the same mechanism as a cervical pessary, which sharpens the uterocervical angle.
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