孕周影响超声引导下脐静脉穿刺成功率的研究

摘要

目的 探讨超声引导下经腹更安全获取胎儿脐静脉血的孕周.方法 对脐静脉穿刺中进针深度在4～6 cm间的160例进行回顾行分析.结果 脐静脉内径≤5 mm 15例,一次成功率73.3 ％;脐静脉内径6 mm 113例,一次成功率92.0 ％;脐静脉内径7 mm 32例,一次成功率81.2％.结论 脐静脉内径6 mm(孕25～26周)时行脐静脉穿刺更安全.%Objective To evaluate the gestational weeks to safely obtain fetal umbilical vein blood sampling guided by trans-abdomen ultrasound. Methods 160 cases of percutaneous umbilical vein puncture with the puncuture depth within 4 - 6 cm were analysed. Results 15 cases of which the umbilical vein diameter within 4-5 mm, the primary successive rate was 73. 3% ; 113 cases of which the diameter was 6mm, the primary successive rate was 92. 0% ; 32 cases of which the diameter was 7mm, the primary successive rate was 81. 2%. Conclusions The umbilical vein diameter 6mm(25~26 weeks) is more safety for the percutaneous umbilical vein puncture.