留置针不同穿刺角度与穿刺成功率之间关系的研究

发布时间：2018-08-21 11:00

【摘要】：目的探讨留置针穿刺角度与穿刺成功率之间的关系。方法选择直径分别为2mm和3mm的模拟血管,选取15°、20°、25°、30°、35°、40°、45°作为穿刺角度,运用数学的方法,计算出针尖在血管内的可用距离,并绘制出对模拟血管进行不同穿刺角度穿刺的图形,计算出的数字用图表的的方式表示。选取2013年7月~2014年12月我院耳鼻喉科住院病人100例,术前随机分为两组,观察组50例,留置针穿刺角度选择20°进针,对照组50例,选择30°进针。结果无论选择2mm还是3mm的模拟血管,穿刺角度分别为15°、20°、25°、30°、35°、40°、45°时,所产生的可用距离的数字显示,随着穿刺角度的增加,可用距离逐渐减少。统计100例留置针穿刺的成功率,观察组成功率为98%,对照组为84%,观察组显著高于对照组(χ2=5.983,P=0.014)。结论留置针穿刺角度越小,可用距离越长,穿刺成功率越高,穿刺角度为15~20°时可用距离最长。临床实践中选择20°作为穿刺角度,不但穿刺的成功率高,而且病人的疼痛也较轻。
[Abstract]:Objective to explore the relationship between the angle of indwelling needle puncture and the success rate of puncture. Methods the simulated blood vessels with the diameter of 2mm and 3mm were selected, and the puncture angle was 15 掳20 掳20 掳25 掳30 掳30 掳30 掳30 掳35 掳40 掳40 掳45 掳. By using mathematical method, the usable distance between the needle tip and the blood vessel was calculated, and the puncture pattern of different puncture angles for the simulated blood vessel was drawn. The calculated number is represented by a chart. From July 2013 to December 2014, 100 inpatients with otolaryngology in our hospital were randomly divided into two groups: the observation group (n = 50) and the control group (n = 50). Results when the puncture angles of 2mm and 3mm were 15 掳, 20 掳, 25 掳, 30 掳, 35 掳and 40 掳40 掳45 掳, the available distance decreased gradually with the increase of puncture angle. The success rate of indwelling needle puncture in 100 cases was counted. The observed composition power was 98 and 84 in the control group, which was significantly higher in the observation group than in the control group (蠂 ~ 2 = 5.983). Conclusion the smaller the angle of indwelling needle is, the longer the usable distance is, and the higher the successful rate of puncture is, the longest available distance is when the puncture angle is 1520 掳. Choosing 20 掳as puncture angle in clinical practice not only has high success rate, but also has mild pain.
【作者单位】：西安交通大学第二附属医院;
【分类号】：R472

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