巨大儿孕妇孕期体重的动态分析

Dynamic analysis of maternal weight for fetal macrosomia

目的：探讨孕妇孕期增重及各孕期体重增加速度与分娩巨大儿的相关性，以冀开展有针对性的孕期管理，降低巨大儿的发生率。方法：回顾分析106例巨大儿和109例正常体重出生儿（对照组）母亲的孕前体重及孕期体重变化。结果：巨大儿组孕妇孕前体重，孕前BMI，孕期增重均高于对照组（P〈0．01），两组孕妇体重增长速度最快时期均为孕20～30周，巨大儿组在孕20～30周及孕30周～分娩两期体重增速均高于对照纽（P〈0．01）。结论：巨大儿发生与孕妇孕前体重，孕前BMI，孕期增重等因素相关，应密切观察孕妇各孕期体重的变化，尤其是孕中晚期。

Objective：By investigate the relationship between maternal weight gain,increasing speed of weight in different pregnant periods and macrosomia. To manage pregnancy reasonably and decrease the morbidity of macrosomia. Methods：One hundred and six newborns whose birth weights were equal to or greater than 4000g as macrosomia group, and 109 newborn with birth weights lying in 2500 -3999g as the control group. The corresponding data such as maternal BMI, weight before pregnancy and the change of weight during pregnancy was compared respectively. Results：The maternal BMI, weight before pregnancy and overall weight gain during pregnancy in macrosomia were greater than those in the control group （ P 〈 0.01 ）. The speed of weight gain in 20 -30th pregnant week was faster than other pregnant terms in both groups. The increasing speed of macrosomia in the macrosomia group was higher than that in the control group in 20 -30th pregnant week and 30th pregnant week delivery. Conclusion：The maternal BMI, weight before pregnancy and overall weight gain during pregnancy are related to macrosomia closely. It is necessary to monitor the change of maternal weight during pregnancy, especially for medium and terminal pregnant weeks.