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近年来采用B超下经腹脐带根部及胎盘根部穿刺采取胎儿血,开创了直接获得胎儿血技术,对产前诊断及优生学研究有重要意义。我院自1993～1996年开展此项技术,经过实践于1996年将上述技术发展到彩超监测下游离脐静脉穿刺。这一新技术的改进,弥补了由于胎儿及胎盘位置不洼或孕妇肥胖所造成的穿刺困难。现将1996年1月至1998年1月施行的11例体会总结如下。 1 对象与方法 1.1 对象病例选择优生咨询门诊孕妇11例,其中有先天愚型分娩史8例,高龄初产2例,孕早期服用多种药物1例。孕妇年龄26～40岁,孕周17～31周。 1.2 方法孕妇排空膀胱取仰卧位。彩超常规探查胎儿结构、胎盘位置、羊水量、游离脐静脉内径,并启动彩色血流,注意游离脐静脉位置。在孕妇腹壁与游离脐静脉最佳
In recent years, the use of B ultrasound abdominal transabdominal cord root and placental puncture to take fetal blood, creating direct access to fetal blood technology, prenatal diagnosis and eugenics research is important. Our hospital from 1993 to 1996 to carry out this technology, through practice in 1996 to the above-mentioned technology development to the monitoring of free umbilical vein puncture. Improvements in this new technology make it difficult to puncture the fetus and placenta due to their location or obesity in pregnant women. Now from January 1996 to January 1998 implementation of 11 cases of experience are summarized below. 1 Subjects and methods 1.1 Object Selection of eugenics consultation outpatient pregnant women in 11 cases, including birth-obese type delivery history in 8 cases, 2 cases of advanced primiparous, early pregnancy taking a variety of drugs in 1 case. Pregnant women aged 26 to 40 years old, gestational weeks 17 to 31 weeks. 1.2 Methods pregnant women emptying the bladder to supine position. Color ultrasound conventional fetal structure, placental position, amniotic fluid volume, free intra-umbilical vein diameter, and start the color flow, pay attention to the location of the free umbilical vein. Abdominal wall in pregnant women with the best free umbilical vein