Abstract：Objective To observe the clinical efficacy of percutaneous transluminal angioplasty (PTA) in treatment of patients with autogenous arteriovenous fistula (AVF) under the guidance of B-ultrasound. Methods Thirty cases of AVF stenosis patients with maintenance hemodialysis treated in Wenzhou People′s Hospital from January 2016 to December 2017 were enrolled in the study. All patients were given the percutaneous transluminal angioplasty (PTA) under B-ultrasound. The fistula stenosis vascular diameter (D), cross-sectional area (S), stenosis peak velocity (Vmax), brachial artery resistance index (RI), operation success rate, the postoperative diameter stenosis rate and complications were compared before operation, immediately after operation, and at 1, 3 d after operation. Results Compared with before operation, the D and S of the fistula stenosed vessels were significantly increased (P < 0.05), while the Vmax and brachial artery RI were significantly decreased (P < 0.05), and the D and S of the fistula stenosed vessels at 1, 3 d after operation were significantly higher than those immediately after operation (P < 0.05), while the stenosis site Vmax and brachial artery RI were significantly lower than those immediately after operation (P < 0.05), and there was no significant difference in the D, S, Vmax and brachial artery RI between at 1 d after operation and at 3 d after operation (P > 0.05). The operation success rate was 100.00%, and the total incidence of postoperative complications was 6.67%. The complications were completely subsided after treatment. Conclusion PTA under B-ultrasound for AVF has the features of simple operation and high safety, and it can significantly improve the blood flow velocity and lumen diameter of stenosis site, and enhance the success rate of surgery, therefore it is worthy of clinical promotion.
2018, Vol. 15 
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