Fetal head descent assessed by transabdominal ultrasound: a prospective observational study

American Journal of Obstetrics and Gynecology(2022)

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摘要
We present a novel method of examining fetal head descent by assessing the proximal part of the fetal skull with transabdominal ultrasound. The correlation with transperineal ultrasound measurements was strong, especially early in labor. The fetal head was elongated in OP positions during the second stage of labor.
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关键词
angle of progression,engagement,fetal position,head descent,labor,molding,suprapubic descent angle,ultrasound
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