B超引导下游离脐静脉穿刺术用于产前诊断的分析

目的：探讨B超引导下游离脐带穿刺术成功率和安全性。方法：对153例因各种原因行产前诊断的孕妇进行B超引导下游离脐静脉穿刺术。结果：1．43例18w－21w孕妇穿刺成功率为87．3％，60例22w-28w孕妇成功率97．5％，50例28w以上的成功率为100％，总成功率95．5％。2．并发症：96例穿刺经过胎盘，胎盘渗血32．3％（31／96），脐带穿刺后渗血16．3％（25／153）。胎儿心动过缓者占5．9％（9／153）。术后未出现晚期流产、胎死宫内、早产、宫内感染等并发症。结论：B超引导下游离脐带穿刺术用于产前诊断是一项成功率高而且安全的方法。

Analyses of the probability of success and security of the free umbilical cord by puncturing guiding needle under ultrasonic for prenatal diagnosis

To investigate the probability of success and security of the free umbilical cord by puncturing guiding needle under ultrasonic in prenatal diagnosis.Methods: Free umbilical cords were punctured guiding needle under ultrasonic in 153 pregnant women for prenatal diagnosis.Results: 1.The rate of success in cordocentesis is 87 3%,97 5% and 100%in 43 cases with gestational age ranging from 18 to 21 weeks,60 cases with gestational age ranging from 22 to 28 weeks and 50 cases with gestational age above 28 weeks,respectively.The total rate of success is 95 5%in 153cascs.2.Complications:The rate of the seepagc of the blood from placentas and umbilical cords is 32.3%(31/96)and 16 3%(25/153)after cordocentsis respectively.5 9%(9/153)pregnancies occurred in heart rates low. Abortions,intrauterine fetal death,preterm delivery and chorioamnionitis have never happened aftar cordocentesis in 153 cases.Conclusions: The free umbilical cord by puncturing guiding needle under ultrasonic is a safe and reliabic method for prenatal diagnosis.