多普勒超声听诊器在中心静脉穿刺置管中的应用

Application of Doppler ultrasonic stethoscope for guiding central venous puncture and catheterization

目的 观察多普勒超声听诊器在中心静脉穿刺置管中的应用价值.方法 行中心静脉穿刺患者300例,随机均分为Ⅰ、Ⅱ、Ⅲ组.Ⅰ组多普勒超声听诊器辅助穿刺,Ⅱ组超声引导下穿刺,Ⅲ组常规体表定位穿刺,比较三组穿刺成功率.结果 Ⅰ、Ⅱ组穿刺成功率分别为98%和100%,明显高于Ⅲ组的91%（P〈0.05）.结论 多普勒超声听诊器辅助中心静脉穿刺置管可提高穿刺成功率.

Objective To observe the successful rate of central venous puncture and catheterization with the aid of Doppler ultrasonic stethoscope. Methods Three hundreds patients scheduled for central venous catheterization were randomly divided into three groups with 100 cases each. Central venous puncture in group I was guided by Doppler ultrasonic stethoscope and that in group Ⅱ was assisted with ultrasound. The puncture was performed in conventional manner in group Ⅲ. The success rate of puncture was compared among three groups. Results The success rates of puncture were 98% and 100% for groups of I and Ⅱ , respectively, which were significantly higher than 91% for group Ⅲ （P 〈 0. 05 ）. Conclusion Doppler ultrasonic stethoscope-assisted central venous puncture and catheterization is superior to the conventional technique with higher success rate.