怀孕中期胎儿孤立型股骨短的临床意义

Clinical analysis of fetal isolated short femur in the second trimester

目的研究怀孕中期胎儿孤立型股骨短与妊娠结局的关系。方法收集从2013年6月~2014年6月来我院行超声检查的孕中期(16~27周)孕妇247例。根据测量胎儿股骨长度的结果,分为正常股骨长度组和股骨短组,比较两组的临床特点与妊娠结局。结果 232例(93.9%)胎儿股骨长度正常,15例(6.1%)存在孤立型股骨短。股骨长度正常组孕妇的身高、妊娠前体质量以及分娩体质量均高于胎儿股骨短组,差异有统计学意义(P<0.05)。胎儿股骨短组孕妇在孕期吸烟的概率高于胎儿股骨长度正常组,差异有统计学意义(P<0.05)。胎儿股骨短组出现小于胎龄儿、足月低出生体质量、早产的概率均高于胎儿股骨长度正常组,差异有统计学意义(P<0.05)。结论孕中期胎儿孤立型股骨短会增加发生早产、胎儿足月低出生体质量以及小于胎龄儿的风险。

Objective We aimed to analyze the relationship between isolated short femur in the second trimester and pregnancy outcomes.Methods We collected 247 patients with a second trimester ultrasound(16-27weeks) from July 2013 to July 2014.Based on the femur length measurement,patients were divided into the normal femur length group and the short femur group.Clinical data and pregnancy outcomes of patients were compared.Results 232(93.9%)had normal femur length,15(6.1%)had short femur.Mothers in the short femur group were shorter and had a lower pregnancy and delivery weight than the group with normal femur length(P<0.05).Tobacco use during pregnancy was more frequent in the short femur group(P<0.05).Small for gestational age,low birth weight and preterm birth occurred more frequently in the short femur group(P<0.05).Conclusion Fetal isolated short femur in the second trimester increases the risk of preterm birth,low birth weight and small for gestational age.