穿刺模式对人工血管动静脉内瘘的影响

目的探讨穿刺模式对人工血管动静脉内瘘的影响。方法选取采用人工血管进行血液净化患者60例次，按人工血管内瘘穿刺模式随机分成对照组（28例）和观察组（32例）。对照组选择A穿刺模式：动一静脉点穿刺部位选择人工血管。观察组选择B穿刺模式：动脉点穿刺部位选择人工血管的静脉或动脉侧交替进行，静脉点穿刺部位选择自体血管。比较两种穿刺模式对人工血管动静脉内瘘通畅率及血管瘤发生率的影响。结果对照组平均透析次数、人工血管的平均穿刺次数分别为（208±56）和（416±112）均高于观察组的（482±60）和（482±60）；对照组血管瘤形成比率（25．00％）高于观察组的（15．63％），差异均有显著性（P〈0．05）。结论选择B穿刺模式优于选择A穿刺模式，不但可以延长人工血管使用寿命，而且能降低血管瘤发生率。

The affection of puncture patterns on artificial arterio-venous fistula

Objective To explore the influence of puncture frequency on arterio - venous fistula. Methods Sixty patients with artificial blood vessel were chosen. They were randomly divided into control group （28 cases） and observation group （32 cases） according to puncture patterns. In control group （ pattern A）, the puncture spot of artery and vein was chosen for artificial blood vessel. The puncture frequency of artificial blood vessel was higher. In observation group （pattern B）, the spot puncture on artery was chosen at artificial blood vessel, but the spot of puncture on vein was chosen at the native blood vessel. The unobstructed rate of fistula and the incidence of aneurysm were observed and compared between these two groups. Results The average number of dialysis and artificial vascular puncture （208± 56 ） and （416 ± 112 ） in control group was higher than those of observation group （482 ± 60） and （482 ± 60 ）, and the proportion for formation of hemangioma in control group （25. 00% ） was lower than that of observation group （15.63%）. There was significant difference （ P 〈 0.05 ） between these two groups. Conclusion Pattern B is better than pattern A. It can not only prolong the life of artificial blood vessel but also reduce the incidence of aneurysm.