Gianopoulos J G
Department of Obstetrics and Gynecology, Loyola University Medical Center, Maywood, IL 60153.
J Perinatol. 1994 Mar-Apr;14(2):125-7.
Premature newborns have been shown to have a lower birth weight than would be predicted from nomograms, suggesting an asymmetric pattern of intrauterine growth. The premature newborns of 95 patients were assessed for symmetry of growth utilizing the ponderal index (PI). Those patients were matched to 108 patients delivering at terms > 38 completed weeks. The PI determination of the preterm neonates was significantly lower than that of the term newborns, 2.31 +/- 0.35 versus 2.57 +/- 0.30, p < 0.001. These data suggest that fetuses delivered prematurely may have asymmetric patterns of intrauterine growth. Premature labor may alter normal substrate delivery to the fetus, producing an asymmetric weight-to-length ratio.
早产新生儿的出生体重低于根据生长图表预测的体重，提示存在子宫内生长不对称模式。利用 ponderal 指数（PI）评估了 95 例患者的早产新生儿的生长对称性。这些患者与 108 例孕 38 足周后分娩的患者进行匹配。早产新生儿的 PI 测定值显著低于足月新生儿，分别为 2.31±0.35 和 2.57±0.30，p<0.001。这些数据表明，早产的胎儿可能存在子宫内生长不对称模式。早产可能会改变正常的底物向胎儿的输送，导致体重与身长比值不对称。
