摘要
目的 探讨三胎妊娠的胎儿发育规律及平均孕周的特点。方法 采用超声测量三胎妊娠的胎儿与单胎妊娠胎儿不同孕周的双顶径、股骨长 ,比较三胎妊娠胎儿的发育状况、出生体重及分娩孕周与单胎妊娠胎儿的差异值。结果 三胎妊娠的胎儿从孕 2 8周起 ,双顶径及股骨长的平均值低于单胎妊娠胎儿 (差异均值分别为 2 1mm和 3 1mm ,P <0 0 1)。三胎妊娠的新生儿出生体重明显低于单胎妊娠的新生儿 (P <0 0 1)。 3 6 2 %的三胎妊娠的新生儿出生体重低于同孕周的第十百分位数 ;95 7%的三胎妊娠胎儿在 3 6周之前分娩 ,平均分娩孕周数为 (3 4 0± 1 6)周 ,较单胎妊娠胎儿的 (3 9 0± 1 6)周明显提前。结论 三胎妊娠胎儿有着与单胎妊娠胎儿不同的发育规律 ,其平均孕周较单胎妊娠明显缩短 。
Objective To study the fetal developmental regulation and gestational weeks at labor for triplets pregnancies Methods To detect biparietal diameters and femoral length at different gestational weeks, record gestational weeks of labor and birth weights, and compare with those of singletons Results The fetal development of triplets slowed down from the beginning of the 28th gestational week compared with that of singletons (the mean difference was 2 1mm and 3 1 mm respectively, P <0 01, P <0 01) Birth weights of 36 2% triplets was less than that of the 10th percent of the same singletons gestational week 95 7% triplets delivered their babies before 36 weeks The average gestational week was 34 0±1 6, obviously ahead of the singletons′ Conclusion The fetal developmental regulation of triplets pregnancies is different from that of singletons, the gestational period is shorter than those of twins and singletons
出处
《中华妇产科杂志》
CAS
CSCD
北大核心
2003年第1期11-13,共3页
Chinese Journal of Obstetrics and Gynecology
