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Clinical efficacy of a modified no-touch technique in the establishment of autologous arteriovenous fistula

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Author:
No author available
Journal Title:
National Medical Journal of China
Issue:
10
DOI:
10.3760/cma.j.cn112137-20221122-02465
Key Word:
肾透析;动静脉瘘;手术后并发症;Renal dialysis;Arteriovenous fistula;Postoperative complications

Abstract: Objective:To explore the clinical efficacy of a modified no-touch technique (MNTT) in establishing autogenous arteriovenous fistulas (AVF) in hemodialysis patients.Methods:A total of 63 patients with AVF which was first established by MNTT in the Department of Nephrology, Suzhou Science and Technology Town Hospital from January 2021 to August 2022 were retrospectively included. The clinical data, ultrasound evaluation data of AVF, AVF maturity rate and AVF patency rate were collected. Subsequently, the AVF rate of patients in the MNTT group was compared with the patency rate of patients in the conventional operation group in the same hospital from January 2019 to December 2020. The Kaplan-Meier method was used to draw the survival curve, and the log-rank test was used to compare the difference in postoperative patency rate between the two groups.Results:There were 63 cases in the MNTT group, with 39 males and 24 females, and aged (60±17) years. Meanwhile, there were 40 cases in the conventional operation group, including 23 males and 17 females, and aged (60±13) years. In the MNTT group, the immediate patency rate was 100% (63/63) after surgery, and the AVF maturation rate at 2, 4 and 8 weeks postoperatively were 54.0% (34/63), 85.7% (54/63), and 90.5% (57/63), respectively. The primary patency rate was 90.0% (45/50), 85.0% (34/40), 82.9% (29/35), and 81.0% (17/21) at 3, 6, 9 months, and 1 year after the operation, respectively, and the assisted patency rates were all 100.0%. The one-year primary patency rate in the MNTT group was higher than that in the conventional surgery group (81.0% versus 63.5%, log-rank χ 2=5.12, P=0.023). Ultrasound results showed that in the MNTT group, AVF veins were evenly dilated, the vascular wall gradually thickened, the brachial artery blood flow gradually increased, and spiral laminar flow occurred in the cephalic vein and radial artery. Conclusion:AVF established by MNTT features with fast maturity and a high patency rate, which is worthy of clinical promotion.

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