Application of Ultrasound-Guided Percutaneous Transluminal Angioplasty in the Treatment of Internal Fistula Stenosis in Dialysis Patients
Objective To explore the application of ultrasound-guided percutaneous transluminal angioplasty(PTA)in the treatment of internal fistula stenosis in dialysis patients.Methods A total of 86 patients with dialysis and internal fistula vascular stenosis admitted to Luoyang Eastern People's Hospital from January 2020 to January 2023 were selected,and all patients underwent PTA treatment.They were divided into study group[43 cases,guided by color Doppler ultrasound(CDFI)]and control group[43 cases,guided by digital subtraction angiography(DSA)].The one-time puncture success rate,surgical success rate,ultrasound related parameters,fistula patency and restenosis rate and complications were compared between the two groups.Results Compared with the control group(83.72％),the success rate of one-time puncture in the study group(100.00％)was higher(P＜0.05).The success rate of operation was 90.70％in the control group and 97.67％in the study group,and the difference was not statistically significant(P＞0.05).Compared with before operation,the blood flow and vascular diameter of the two groups were increased,and the peak flow rate of dialysis was decreased after operation(P＜0.05).Compared with the control group,the blood flow and vascular diameter of dialysis in the study group were higher,and the peak flow rate of dialysis was lower(P＜0.05).Compared with the control group,the patency rate of internal fistula in the study group was higher,and the restenosis rate of internal fistula in the study group was lower at 3,6 and 12 months after operation(P＜0.05).Compared with the control group(23.26％),the incidence of complications in the study group(4.65％)was lower(P＜0.05).Conclusion Ultrasound-guided PTA in the treatment of hemodialysis patients with internal fistula stenosis can effectively improve the success rate of one-time puncture and the patency rate of internal fistula,widen the diameter of the stenosis,increase the blood flow of dialysis,and reduce the restenosis rate of internal fistula and the incidence of complications.
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