Preterm Birth Clinical Trial
Official title:
The Exploration of Prolonged Treatment With Vaginal Progesterone to Prevent Preterm Birth From IVF Fresh Embryo Transplantation Cycle: a Randomized Controlled Trial
To investigate the incidence of preterm birth in IVF fresh embryo transplantation cycle patients after prolonged vaginal progesterone treatment
Participant: 20-40 years old, IVF fresh embryo transplantation, singleton pregnancy, blood/urine HCG (+) Control group: The administration of vaginal progesterone (90mg/d) began from positive HCG in blood/urine until 12 weeks of gestation. Regular delivery examinations were conducted, and cervical length was detected by B-ultrasound at 12, 16, 20 and 24 weeks of gestation respectively, while fetal growth and development were monitored. Follow-up was continued until the end of delivery. Trial group: The administration of vaginal progesterone (90mg/d) began from positive HCG in blood/urine until 24 weeks of gestation. Regular delivery examinations were conducted, and cervical length was detected by B-ultrasound at 12, 16, 20 and 24 weeks of gestation respectively, while fetal growth and development were monitored. Follow-up was continued until the end of delivery. Observation index: The gestational age of delivery, symptoms of preterm birth and gestational age, gestational age at preterm birth or abortion, fetal growth and development, neonatal outcomes, and drug-related adverse reactions were recorded for each participant. ;
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