Influence of continuous monitoring of flow and recirculation rate of autologous arteriovenous fistula on hemodialysis patients
Abstract：Objective:To know about the clinical significance of continuous monitoring of the flow and the recir-culation rate of the autologous arteriovenous fistula of hemodialysis patients,so as to provide a theoretical basis for the clinical management of arteriovenous fistula.Methods:A total of 72 cases of maintenance hemodialysis patients who took the autologous arteriovenous fistula as the vascular access were selected for observation for 1 2 consecutive months,and the flow and recirculation rate of these practical accesses were detected by ultrasonic di-lution technique every 3 months,consecutive detection for 3 times,and then to follow up for 6 months.During the observation period,the actual dialysis circuit (Qa),recirculation rate(AR),arteriovenous fistula flow(AF), cardiac output(CO)were recorded during the hemodialysis.Results:All the patients involved in the study,72 ca-ses completed internal fistula monitoring of the first round and second round,70 cases completed the data meas-urement in the third round.There were two cases of patients switching to central venous catheter dialysis and exiting follow up because of internal fistula occlusion.During 1 2 months of continuous monitoring,the AF val-ue of patients was 256 mL/min to 2 340 mL/min (888 mL/min±419 mL/min),5 cases of patients with AR>5% in first round,the AF value of the 5 patients was less than 500 mL/min (256 mL/min~490 mL/min),and the embolism occurred in them at the end of follow up.There was no statistically significant difference in AF value among the 3 rounds.In 72 cases of patients with arteriovenous fistula,there were 18 cases embolism oc-curred at the end of the follow up.In the 18 cases with embolism the mean AF value was 709 mL/min±337 mL/min in 3 rounds,mean AF value of 54 cases patients with no embolism was 1 171mL/min±692 mL/min;there was statistically significant difference in the AF and recirculation rate between embolism group and no thrombosis group(P<0.05).Conclusion:Continuous monitoring of flow and recirculation rate of autologous ar-teriovenous fistula had good predictive value for the risk of internal fistula embolization.It was an effective tool of early diagnosis of access dysfunction and early detection of embolism.
Keywords：hemodialysisarteriovenous fistulaembolizationultrasonic dilution technique
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 4127-4130 )