Predictive value of head-perineum distance measured at the initiation of the active second stage of labor on the mode of delivery: A prospective cohort study
European Journal of Obstetrics & Gynecology and Reproductive Biology(2023)
摘要
The head-perineum distance measured at the initiation of the active second stage of labor is predictive of the mode of delivery. Head-perineum distance below 44 mm predicts a vaginal delivery with the best diagnostic performance, and optimizes the time to start pushing efforts.
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关键词
Intrapartum ultrasound,Transperineal ultrasound,Head-perineum distance, instrumental delivery,Caesarean section,Active second stage of labor
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