动态针尖定位结合超声平面外技术对桡动脉穿刺置管成功率的影响

Effect of dynamic needle tip positioning technique combined with ultrasound out-of-plane on the success rate of radial artery catheterization

目的探讨动态针尖定位技术结合超声平面外技术对桡动脉穿刺置管成功率的影响。方法选择择期手术120例患者。随机分为动态针尖定位技术组(DN组)和常规短轴技术组(CN组)。记录两组患者的桡动脉直径、一次成功率、总成功率(5 min内)、成功完成穿刺置管的时间。结果DN组桡动脉穿刺置管一次成功率(81.67%vs 58.33%)和5 min内总成功率(90.00%vs 71.67%)均高于CN组,差异均有统计学意义(χ~2分别=7.78、6.51,P均<0.05)。DN组和CN组患者桡动脉直径分别为(2.82±0.76)mm和(2.95±0.81)mm,差异无统计学意义(t=0.86,P>0.05)。DN组和CN组患者成功完成穿刺置管的中位时间为60.00 s和69.00 s,差异无统计学意义(U=834.50,P>0.05)。结论动态针尖定位技术能够提高超声引导短轴平面外桡动脉穿刺置管的成功率。

ObjectiveTo investigate the effect of dynamic needle tip positioning technique combined with ultrasound out-of-plane technique on the success rate of radial artery catheterization.MethodsA total of 120 patients who underwent elective surgery were enrolled and randomly divided into dynamic tip positioning technology group(group DN)and conventional short axis technology group(group CN). The diameter of the radial artery,the primary success rate,the success rate within 5 minutes,and the time of successfully complete catheterization were recorded.ResultsThe primary success rate of radial artery puncture in the group DN(81.67% vs 58.33%)and the total success rate within 5 minutes(90.00% vs 71.67%)were higher than those in the group CN(χ~2= 7.78,6.51,P<0.05).The diameter of the radial artery in the group DN and group CN were 2.82±0.76 mm and 2.95±0.81 mm,respectively,with no significant difference(t=0.86,P>0.05).The time of successfully complete catheterization of group DN and group CN were 60.00 s and 69.00 s,the difference was not statistically significant(U=834.50,P>0.05).ConclusionDynamic needle tip positioning technique can improve the success rate of ultrasound guided short-axis out-of-plane radial artery catheterization.