1ml注射器辅助法在桡动脉穿刺置管中的应用

目的探讨一种新型穿刺法即1ml注射器辅助法在侥动脉援管的应用，观察其置管成功率与穿刺所需时间。方法选取300例重大手术需动脉穿刺置管的患者，随机分为两组。Ⅰ组采用直接穿刺置管法，Ⅱ组采用1ml注射器辅助穿刺法。结果Ⅰ组穿刺成功123例，Ⅱ组穿刺成功141例，两组相比，有显著统计学意义（P〈0．01）：前者用时（56±10．4）s，后者（34±9．3）s（P〈0．01）。结论1ml注射器辅助穿刺是简单、快速、安全且损伤较小的动脉穿刺方法。

Effect of 1-ml Injector on Radial Artery Cannulation Technique

Objective To compare direct radial artery cannulation with 1-ml injector-assisted artery cannulation in patients undergoing routine or emergency surgery. Methods Thrcc hundred patients undergoing major surgery, who required a radial artery catheter, were included in the study. The patients were divided into two groups： Group Ⅰ including 150 patients who received radial artery cannulation with the direct technique, and Group Ⅱ including 150 patients who received 1 -ml injector-assisted radial artery cannulation. Results Radial artery was succcssfully cannulated in 141 patients in Group Ⅱ but only in 123 patients in Group Ⅰ （P 〈0.01 ）. Mean time for radial artery cannulation was 56 ± 10.4 seconds in （grnup Ⅰ and 34 ± 9.3 scconds in Group Ⅱ （P 〈 0.01 ）. Conclusion The authors recommend the use of 1-ml injector-assisted radial artery cannulation techniquc rather than the direct technique. The 1 -ml injector-assisted technique provides an easy, safe and quick cannulation with a low rate of dissection of the radial artcry.