摘要
Abstract
Objective:To explore the application of color Doppler ultrasound in assessing the maturity of upper limb autogenous arteriovenous fistula(AVF)after surgery in patients with uremia.Method:A total of 78 uremic hemodialysis patients treated in Guixi Hospital of Traditional Chinese Medicine from July 2020 to June 2023 were selected.Color Doppler ultrasound was used to measure the diameter and blood flow of the radial artery and cephalic vein before and after upper limb AVF surgery.At 6 weeks postoperatively,patients were divided into mature group and immature group based on AVF maturity criteria,and the vascular and blood flow conditions of the two groups were compared.Receiver operator characteristic(ROC)curves were drawn to evaluate the diagnostic value of radial artery and cephalic vein blood flow for AVF maturity.Result:At 1,3 and 6 weeks postoperatively,radial artery volume flow(RVF),radial artery diameter(RAD),and radial artery peak systolic velocity(RPSV),as well as the cephalic vein blood flow(CVF),cephalic vein diameter(CVD),and cephalic vein peak systolic velocity(CPSV)increased significantly,compared with those before operation,the differences were statistically significant(P<0.05).The radial artery resistance index(RRI)and cephalic vein resistance index(CRI)decreased significantly,compared with those before operation,the differences were statistically significant(P<0.05).In the mature group,RAD,RPSV,CVD and CPSV were higher,and RRI and CRI were lower than those in the immature group(P<0.05).At 6 weeks postoperatively,the combined prediction of CAD,CPSV and CRI for AVF maturity had an area under the curve(AUC)and sensitivity,and specificity of 0.942,94.5%and 87.0%respectively,while the combined prediction of RAD,RPSV and RRI had an AUC,sensitivity,and specificity of 0.919,83.6%and 91.3%,respectively.Conclusion:Measuring the vascular and blood flow parameters of the cephalic vein and radial artery with color Doppler ultrasound after upper limb AVF surgery in uremic patients can be used to assess AVF maturity.关键词
尿毒症/彩色多普勒超声/动静脉内瘘/成熟度/血流量Key words
Uremia/Color Doppler ultrasound/Arteriovenous fistula/Maturity/Blood flow
