美国的三胞胎分娩。高危妊娠的一种流行情况。

Triplet births in the United States. An epidemic of high-risk pregnancies.

作者信息

Keith Louis G, Oleszczuk Jaroslaw J

机构信息

Department of Obstetrics and Gynecology, Northwestern University Medical School, Center for Study of Multiple Birth, Chicago, Illinois, USA.

出版信息

J Reprod Med. 2002 Apr;47(4):259-65.

PMID:12012876

Abstract

OBJECTIVE

To more precisely understand the changes in triplet births in recent years.

STUDY DESIGN

Analysis of recent government and medical publications pertaining to triplets.

RESULTS

Triplet births are at much greater risk than singletons of poor birth outcomes. More than 9 of 10 triplet births are born preterm (< 37 completed weeks of gestation) as compared with < 1 of 10 singleton infants. The average weight of a triplet newborn (1,698 g) is one-half that of a singleton newborn (3,358 g). The infant death rate for triplet and other higher-order multiple births is 12 times higher than that for singletons (93.7 as compared with 7.8 infant deaths per 1,000 live births).

CONCLUSION

Based on their frequency of preterm birth, low birth weight and infant death rate, it is appropriate to characterize all triplet pregnancies as high risk.

摘要

目的

更精确地了解近年来三胞胎分娩情况的变化。

研究设计

对近期政府及医学领域有关三胞胎的出版物进行分析。

结果

三胞胎分娩出现不良分娩结局的风险远高于单胞胎。超过十分之九的三胞胎为早产（妊娠不足37周），而单胞胎婴儿中早产的比例不到十分之一。三胞胎新生儿的平均体重（1698克）仅为单胞胎新生儿平均体重（3358克）的一半。三胞胎及其他多胞胎的婴儿死亡率比单胞胎高12倍（每1000例活产中，三胞胎及其他多胞胎的婴儿死亡数为93.7例，单胞胎为7.8例）。