Abstract:Objective To explore the application value of supporting catheter in the operation of radial artery-cephalic vein fistula (RC-AVF) of forearm. Methods The clinical data of 60 patients who underwent RC-AVF operation in the First People's Hospital of Lianyungang from June to October 2020 were analyzed retrospectively. Thirty cases of modified end-to-side anastomosis were used as the control group, and 30 cases of combined support catheter on the basis of the control group were used as the experimental group. The intraoperative related indexes and use of AVF and complications within 6 months were analyzed and compared between the two groups. Results Compared with the control group, the time of intraoperative vascular anastomosis was significantly shortened in the experimental group （P<0.01）; the blood flow of the first dialysis, the inner diameter of the drainage vein and the blood flow of brachial artery 8 weeks after the operation were better than those of the control group（P<0.05,P<0.01）. The incidence of complications in the experimental group was lower than that in the control group within 6 months after operation, but the difference was not statistically significant (7.14% vs 26.92%, P>0.05). Conclusions In RC-AVF operation, the use of supporting catheter for vascular anastomosis can not peel off the vascular adventitia, thereby reducing the surgical injury and the difficulty of vascular anastomosis. In addition, the supporting catheter has the advantages of low cost and convenient acquisition and use.