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进入胎儿循环对产前诊断及治疗是重要的。1974年Hobbins等首先应用胎儿镜检查绒毛血管,继而检查胎盘脐带附着处的脐静脉或脐动脉血,最近在超声检查指导下于胎盘脐带附着处穿刺,从而代替了胎儿镜,使操作相对容易,损伤性小,胎儿死亡率较低;但在羊水量异常,母亲肥胖病例或胎儿遮掩脐带附着在后壁胎盘的部位,使取血困难,因此考虑改变取胎血标本(FBS)的部位,如胎儿心脏和胎肝内脐静脉(IHV)。作者复习1986年8月1日～1987年12月31日因各种指征取FBS的207例病人305次记录,除9次(30%)在研究开始应用胎儿镜之外,其余均在超声指引下穿刺,209次(68.5%)首选胎盘脐带附着处
Into the fetal circulation for prenatal diagnosis and treatment is important. In 1974, Hobbins et al first used fetoscopy to detect villus, followed by examination of umbilical vein or umbilical artery at the site of placenta umbilical cord insertion. In the recent ultrasound examination, punctures at the umbilical cord of the placenta were punctured to replace the fetoscope, making the operation relatively easy. Small damage, low fetal mortality; but in an abnormal amount of amniotic fluid, maternal obesity or fetus cover the umbilical cord attached to the posterior wall of the placenta in the site, so difficult to take blood, it is considered to change the fetal blood sample (FBS) sites, such as Fetal heart and fetal intrahepatic umbilical vein (IHV). The authors reviewed 305 records of 207 patients who received FBS for various indications from August 1, 1986 to December 31, 1987. Except for 9 (30%) fetuses being studied at the beginning of the study, the rest were ultrasonographed Under the guidance of puncture, 209 times (68.5%) preferred placenta umbilical cord attachment