论文部分内容阅读
目的：对预测胎儿体重的７种方法进行比较分析，以找出一种较好的公式。方法：对分娩巨大胎儿的９８例孕妇的宫底高、腹围以及其中６４例Ｂ超测定胎儿双顶径、股骨长，分别以７种公式预测胎儿体重。公式如下：①双顶经＋股骨长≥１７ｃｍ；②宫底高＋腹围≥１４０ｃｍ，以上两种情况可考虑巨大胎儿；③胎儿体重（ｇ）＝（宫底高－ｎ）×１５５（以先露高低定ｎ为１１、１２、１３）；④胎儿体重（ｇ）＝宫底高×腹围＋１５０；⑤胎儿体重（ｇ）＝２９００＋０．３×宫底高×腹围；⑥胎儿体重（ｇ）＝２００＋宫底高×腹围；⑦胎儿体重（ｇ）＝－２７００＋１２３×宫底高＋２０×腹围。结果与新生儿实际出生体重比较，误差≤１００ｇ为符合。结果：符合率最高为第⑤公式，其符合率为９２．８６％，与其它方法相比，有显著差异（Ｐ＜０．００５）。结论：第⑤种方法是值得在临床推广应用的，特别对巨大胎儿体重预测则更为适宜。
OBJECTIVE: To compare and analyze seven methods for predicting fetal weight in order to find a better formula. Methods: Fetal height and abdominal circumference of 98 pregnant women who gave birth to a huge fetus and fetal bifida diameter and femur length of 64 cases were measured by B ultrasound. The fetal weight was predicted by seven kinds of formulas respectively. The formula is as follows: ① biparietal + femur length ≥ 17cm; ② Palace height + abdominal circumference ≥ 140cm, the above two cases can consider a huge fetus; ③ fetal weight (g) = The first set of high and low set n is 11, 12, 13); ④ fetal weight (g) = Palace height × abdominal circumference +150; ⑤ fetal weight (g) = 2900 + g) = 200 + palace bottom height × abdominal circumference; ⑦ fetal weight (g) = -2700 + 123 × palace bottom height +20 × abdominal circumference. Results compared with the actual birth weight of newborns, the error is less than or equal to 100g. Results: The highest coincidence rate was the ⑤ formula, the coincidence rate was 92.86%, which was significantly different from other methods (P <0.005). Conclusion: The ⑤ method is worthy of clinical application, especially for the prediction of huge fetus weight is more appropriate.