Pates Jason A, McIntire Donald D, Casey Brian M, Leveno Kenneth J
Department of Obstetrics and Gynecology, Madigan Army Medical Center, Tacoma, WA 98431, USA.
J Ultrasound Med. 2008 Jan;27(1):39-43. doi: 10.7863/jum.2008.27.1.39.
The purpose of this study was to evaluate the prediction of fetal macrosomia based on ultrasound estimates of fetal weight and amniotic fluid volume combined with clinical risk factors.
A retrospective cohort study of women undergoing indicated obstetric ultrasound examinations within 7 days of delivery was conducted.
A total of 3115 women gave birth within 7 days of ultrasound examinations that included an estimated fetal weight (EFW) and an amniotic fluid index (AFI). Clinical risk factors were associated with an 8% positive predictive value for a birth weight of 4000 g or higher. Adding an ultrasound EFW of 4000 g or higher increased the positive predictive value to 62%. Adding an AFI of 20 cm or higher to the clinical risk factors and the ultrasound EFW further increased the positive predictive value to 71%.
An ultrasound EFW of 4000 g or higher within 1 week of delivery combined with clinical risk factors and an increased AFI is associated with macrosomia at birth in 71% of cases.
本研究旨在评估基于胎儿体重超声估计值、羊水量与临床危险因素相结合对巨大儿的预测情况。
对在分娩前7天内接受产科超声检查的女性进行一项回顾性队列研究。
共有3115名女性在超声检查后7天内分娩，超声检查包括估计胎儿体重（EFW）和羊水指数（AFI）。临床危险因素对出生体重4000克及以上的阳性预测值为8%。增加超声估计胎儿体重4000克及以上可将阳性预测值提高到62%。在临床危险因素和超声估计胎儿体重基础上增加羊水指数20厘米及以上可进一步将阳性预测值提高到71%。
分娩前1周内超声估计胎儿体重4000克及以上，结合临床危险因素和增加的羊水指数，在71%的病例中与出生时巨大儿相关。
