End-stage renal disease (ESRD) has dramatically increased in number and hemodialysis remains the main therapy. Arteriovenous fistula plays a critical role for dialysis patients. Materials and Methods: We retrospectively reviewed the medical records of AVF operated in Dong Nai General Hospital (between 09/2017 and 08/2020). Outcomes were compared between two groups: With and without preoperative vascular lập bản đồ to assess the role of this method. Learning curves were analyzed based on the

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... d of mean operative time and surgical success rate over time, and the number of operations required to overcome the learning curve was calculated with the CUSUM method. Results: The study group consisted of 158 patients, with a mean age of 54.76 ± 26. Male/ female rate was nearly 1:1. Short-term outcomes: Success rate was 87.3%, failure rate was 12.7%, reoperation rate was 7.6%. At 3 months, 6 months, and 9 months follow–up, the AVF patency was 86.70%, 84.18%, and 80.38%, respectively. Vascular lập bản đồ has a better trend of the short-term outcome (83.8% vs. 90.4%; P = 0.231), as well as AVF patency at 3 months, 6 months, 9 months (83.54% vs. 89.87%; P = 0.174), (79.75% vs. 88.61%; P = 0.066) and (75.95% vs. 84.08%; P = 0.077), respectively. However, the difference was not significant. In case of preoperative vascular lập bản đồ, the number of operations required to overcome the learning curve was 75 cases. Conclusion: Arteriovenous fistula surgery at Dong Nai General Hospital has a good short term and mid-term outcome. Preoperative vascular mapping seemed to improve the outcomes.