+Corresponding Author: Assistant Professor, Department of Nephrology, Faculty of Medicine, Jundishapur University of Medical Sciences, Ahvaz, Iran, Telephone: +98(916) 3068-063 8894-5186, Fax: +98(611) 221-6504, Beladimusavi@yahoo.com. Email: Beladimusavi@yahoo.com
How to Cite:Beladi Mousavi S. Arterio-Venous Fistula Recirculation in Hemodialysis: Causes and Prevalences. Shiraz E-Med J. 2010;11(4):20447. doi:
Abstract
Introduction:
The measurement of Arterio-Venous (A-V) Fistula Recirculation has important
diagnostic implications because the efficiency of haemodialysis (HD) may be limited, resulting
in dialysis delivery being less than that prescribed. The purpose of the study is to determine
its prevalence and causes in our HD patients.
Materials and Methods:
We randomly selected 100 end stage renal disease patients with AV
fistula that they were on HD more than 3 months. The degree of recirculation was also
measured with Urea based two needle technique method. For each patient distances between
arterial and venous and distances of needles from fistula and its directions was recorded.
Echocardiography and A-V fistula Color Doppler Ultrasound were also performed.
Results:
Blood flow rate and dialysate flow rate were 300 mL/min and 500 mL/min respectively.
The prevalence of A-V fistula recirculation was 17% (17patients).Average degree of
recirculation between these patients was 9.562.32 %. The most common cause was misplacement
and or misdirection of needles (17 patients). The second cause was heart failure
with Ejection Fraction > 40% (8 patients). No difference was seen between diabetic versus
non diabetic (P =0.28) and hypertensive versus normotensive (P =0.21%) HD patients.
Conclusions:
A-V fistula recirculation is common occurrence in HD patients and the most
common cause of recirculation is misplacement and or misdirection of needles so we should
have more emphasis on education and training of HD staffs.
Ahmad Ganie F, Lone H, Majeed Dar A, Nabi Lone G, Wani ML. Native Arterio-Venous Fistula Is the Vascular Access of Choice for Hemodialysis in End Stage Renal Disease. Int Cardiovasc Res J. 2013;7(2):e12706. doi:
Esmaeil Mosharafi F, Montazeri M, Amirkhanlou S. An Investigation on the One-year Rate of Arteriovenous Fistula Failure and Its Related Factors in Patients with End-stage Renal Disease; an Experience in Golestan Province of Iran. Nephro-Urol Mon. 2021;13(4):e117420. doi: https://doi.org/10.5812/numonthly.117420