不同角度静脉穿刺患者疼痛及穿刺成功率的比较研究

目的 探求一种既能减轻患者疼痛又能提高穿刺成功率且能减少血管损伤的静脉穿刺角度与方法.方法 对200例患者采用自身对照法,在血管上方以20～30°、31～40°、41～50°、51～60°、>60°的角度,分别采取针尖斜面与血管纵轴平行方向(即针尖斜面向左或向右)直刺血管与传统的针尖斜面向上的穿刺方法,分为观察组和对照组进行疼痛程度和穿刺成功率比较.结果 2组比较存在差异性,观察组优于对照组(除外>60°穿刺成功率2组无差异).结论 采用针尖斜面与血管纵轴平行方向直刺血管,既能显著减轻患者疼痛又能提高穿刺成功率且能减少血管损伤,各方面均优于传统的针尖斜面向上的进针方法,且无论采用哪种进针方法,51～60°为最佳进针角度.

Comparative study in pain and the success rate of puncture between venipunctnre methods from various angles

Objective To explore a venipuncture method that can reduce the pain, improve the suc-cess rate of puncture as well as reduce vascular injury. Methods Self-controlled method was applied in 200 patients, needle tips with 20～25°,31～40°,41～50°, 51～60°, > 60° angles on the top of the blood ves-sels,the inclined plane of the needle parallel to the longitudinal axis of the blood vessel (that was,the in-clined plane to the left or right) or traditional method with upward of needle tips were adopted, the observa-tion group and the control group were divided according to different methods, pain and success rate of puncture were compared. Results There were differences between the two groups,results of the observa-tion group were better than those of the control group (except when > 60°, success rate showed no differ-ence). Conclusions Venipuncture with needle tip parallel to the longitudinal axis of the blood vessels can significantly reduce pain in patients, improve the success rate of puncture and reduce the vascular in-jury, which were superior to the traditional venipuncture method. Whatever method is chosen, 51～60° is the best angie into the vessel.