Mills M D, Nageotte M P, Elliott J P, Crade M, Dorchester W
Department of Obstetrics and Gynecology, Good Samaritan Medical Center, Phoenix, AZ 85006.
Am J Obstet Gynecol. 1990 Nov;163(5 Pt 1):1568-74. doi: 10.1016/0002-9378(90)90629-l.
Antenatal management of very-low-birth-weight infants often requires difficult obstetric decisions. This study was designed to evaluate the predictive value for neonatal outcome of antenatally acquired estimation of gestational age and ultrasonographically estimated fetal weight or a combination of both in very-low-birth-weight infants. Sixty-seven fetuses with estimated gestational ages between 22 0/7 and 28 6/7 weeks were studied ultrasonographically to estimate fetal weight. A comparison of accuracy of estimated fetal weight with actual birth weight showed good correlation (r = 0.93). Neonatal outcome of these infants was analyzed by estimated gestational age and estimated fetal weight. Estimated gestational age and estimated fetal weight greater than 25 weeks and greater than 750 gm were associated with 50% survival, respectively. However, when both of these conditions were met survival reached 85%. This information may be useful to guide antepartum management decisions in this very-low-birth-weight group.
极低出生体重儿的产前管理常常需要做出艰难的产科决策。本研究旨在评估产前获得的孕周估计值和超声估计胎儿体重或两者结合对极低出生体重儿新生儿结局的预测价值。对67例估计孕周在22⁰/₇至28⁶/₇周之间的胎儿进行超声检查以估计胎儿体重。估计胎儿体重与实际出生体重的准确性比较显示出良好的相关性（r = 0.93）。通过估计孕周和估计胎儿体重分析这些婴儿的新生儿结局。估计孕周大于25周和估计胎儿体重大于750克时，婴儿的存活率分别为50%。然而，当同时满足这两个条件时，存活率达到85%。这些信息可能有助于指导这一极低出生体重组的产前管理决策。
