改良宫高测量法对胎儿体质量估计的临床意义

目的：探讨改良宫高测量法对胎儿体质量估计的准确性。方法选择2013年12月1日至2014年4月30日在重庆医科大学附属第二医院进行分娩的547名孕妇,于产前分别采用子宫倾斜角及宫高测量仪测量改良宫高、常规宫高及腹围,运用临床常用公式计算改良宫高法和常规宫高法估测的胎儿体质量,并与胎儿出生的实际体质量相比较,计算符合率。结果547例孕妇改良宫高测量法所得宫高平均值为(31.7±2.30)cm,常规方法测量的宫高平均值为(34.7±2.46)cm,改良法所得平均宫高明显小于常规法所得平均宫高(t=54.25,P <0.01)。改良宫高法所测量数值使用宫高腹围法、袁冬生法、卓晶如法、凌萝达法、曾蔚越法及顾国华法估测新生儿体质量和新生儿出生实际体质量的符合率分别为68.4%、69.7%、59.4%、67.8%、69.3%、78.4%,而常规宫高法所测量数值计算的符合率分别为53.4%、34.4%、54.3%、46.1%、38.8%、45.9%,其中宫高腹围法、袁冬生法、凌萝达法、曾蔚越法、顾国华法采用改良宫高估计的胎儿体质量符合率明显高于采用常规宫高所得符合率(P <0.01)。结论使用子宫倾斜角及宫高测量仪测定的改良宫高预测胎儿体质量准确率较高,具有重要的临床应用价值。

Clinical significance of fetal weight estimation by modiefied uterine fundal height

Objective To investigate the accuracy of fetal weight estimation by modiefied uterine fundal height.Methods Totally 547 pregnant women admitted to maternity ward of the Second Affiliated Hospital of Chongqing Medical University from December 1,2013 to April 30,2014 with childbirth were chosen as the subject.The modified uterine fundal height were measured by the uterus inclination and modiefied fundal height admeasuring apparatus,normal uterine fundal height and and abdomen circumfer-ence were measured by tape.The fetal weight was estimated by utilizing modified uterine fundal height.Results The modified fun-dal height was(31.7±2.30)cm,which was significantly higher than that normal fundal height(34.7 ± 2.46 )cm(t = 54.25,P <0.01).The accuracy rate of modified uterine fundal height for fetal weight estimation with empirical formulas,Yuan′s,Zhuo′s,Lin′s,Zen′s,Gu′s were 68.4%,69.7%,59.4%,67.8%,69.3%,78.4%,respectively.The accuracy rate of normal uterine fundal height for fetal weight estimation with the same formulas were 53.4%,34.4%,54.3%,46.1%,38.8%,45.9%,respectively.The accuracy rate of modiefied uterine fundal height for fetal weight estimation with empirical formulas,Yuan′s,Lin′s,Zen′s,Gu′s were significantly higher than that of utilizing normal uterine fundal height estimation with the same formulas(P <0.01).Conclusion Modified uterine fundal height has better accuracy in estimating fetal weight,it has a important clinical significance.