76例巨大儿产前诊断的探讨及临床分析

Prenatal Diagnosis and Clinical Analysis of 76 Giant Neonates

对７６例巨大儿与７６例非巨大儿进行对照研究。结果发现，巨大儿的发生率逐年升高。胎儿双顶径十股骨径十腹径≥２８ｃｍ时，巨大儿的发生率为８６．８％；孕妇孕期体重增长＞２０ｋｇ或孕妇体重≥７０ｋｇ时巨大儿的发生率分别为５３．１％，６８．２％；宫高十腹围≥１４０ｃｍ时，巨大儿的发生率为６１．８％；存在以上３项中任何两项时，巨大儿的发生率为７７．５％，结果表明，可根据以上指标对巨大儿进行初步的产前诊断。

Acontrol study has been conducted between 76 giant neonates and 76 normalones.The result reveals a yearly increase for giant neonate incidence.When more than 28 cm isdetected for fetal biparietal diameter,femur length and abdominal circumference,86.8%is the incidence of giant neonate,which goes to 53.1%and 68.2%respectively when the weight of a pregnant woman rises to more than 20 kg.during the period of pregnancy,or when a pregnantwomen weighs above 70 kg.If uterine height plus abdominal is above 140cm,61.8%is the in-cidence of giant neonate,which leaps to 77.5%with any two of the former three cases taken in-to consideration. Hence based on the above indexes a preliminary diagnosis can be made for a gi-antneonate.