Analysis of the related factors of the non-diabetic fetal macrosomia

Objective:To analyze the clinical related factors of non-diabetic fetal macrosomia,and explore its correlation with prepregnancy body mass index(BMI)and weight gain during pregnancy.Methods:Three hundred and twenty-two non-diabetic fetal macrosomia with gestational age from 37 weeks to 42 weeks and 325 normal fetus were divided into the experimental group and control group from 2005 to 2012,respectively.The age,calving parity,height,gestational week,weight gain during pregnancy,prepregnancy and intrapartum BMI,fundal height and abdominal circumference of new mother,and fetal biparietal diameter and femur length between two groups were compared.Results:The weight gain during pregnancy,prepregnancy and intrapartum BMI,fundal height,abdominal circumference,fundal height plus abdominal perimeter and gestational week of new mother,and the fetal biparietal diameter,femur length,fetal biparietal diameter plus femur length and height in experimental group were more than those in control group(P<0.01).The correlation analysis showed that the fetal biparietal diameter,fetal biparietal diameter plus femur length and weight gain during pregnancy were positive correlation with macrosomia(P<0.05 to P<0.01).Conclusions:The incidence of non-diabetic fetal macrosomia is closely related to the excessively gestational weight gain.The measure of fetal biparietal diameter plus femur length in excessive maternal weight gain during pregnancy can improve the prenatal diagnosis of non-diabetic fetal macrosomia.