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Objective: By comparing the evaluation effect of traditional physical examination (PE) and portable color Doppler ultrasound on arteriovenous fistula (AVF), to explore the value of portable ultrasound in the diagnosis of abnormal fistula lesions in patients with maintenance hemodialysis (HD). Methods: 57 patients with maintenance HD from Dongpu HD center, the first affiliated hospital of Jinan university from September 2019 to March 2020 were selected. The PE was performed by specialist nurses, and AVF was evaluated by portable ultrasound, and the general data of the patients were collected. Results: The average age of the HD patients was 58.98 years, including 31 males (54.39%). The median of HD duration was 56 months, and 22 patients (28.60%) had diabetes mellitus. The prevalence of fistula stenosis was 17.54%. 50% PE was abnormal in fistula stenosis group, which was higher than that in non-fistula stenosis group (10.64%, P=0.012). The κ index was 0.394 in the consistency assessment between PE and portable ultrasound for evaluating the fistula stenosis (P=0.003). The incidence of fistula sound reduction, blood flow less than 200mL/min during treatment and abnormal arm lifting test in patients with fistula stenosis were all higher than those without fistula stenosis (all P<0.05). The results of multivariate logistic regression analysis showed that abnormal PE was closely related to fistula stenosis (OR=8.400, 95% confidence interval (CI)=1.786-39.498, P=0.007). Conclusion: Portable color Doppler ultrasound could effectively diagnose AVF stenosis in maintenance HD patients, especially when the traditional PE was abnormal, timely portable ultrasound evaluation was conducive to early intervention and extend the life of AVF.

Evaluation Value of Portable Color Doppler Ultrasound for Arteriovenous Fistula Stenosis in Patients with Maintenance Hemodialysis