DOES PREOPERATIVE ARTERIAL INFLOW AFFECT FISTULA FLOW RATE AND EARLY THROMBOSIS IN SURGICALLY CREATED ARTERIOVENOUS FISTULAS FOR HAEMODIALYSIS?

Abstract

The aim of this study is to investigate the effect of arterial inflow on the flow rates and early thrombosis of arteriovenous fistulas created for haemodialysis. Constructed arteriovenous fistulas sometimes do not work or may develop early thrombosis. The effect of inadequate flow rate on developing early thrombosis is already known. The investigation of the effect of preoperative arterial inflow on the fistula flow rates was planned. This clinical study was performed with 48 patients on whom snuff-box, Brescia-Cimino radiocephalic or brachiocephalic arteriovenous fistula were created. Preoperative arterial inflow and postoperative fistula flow rates on the first and seventh days were measured by colour doppler ultrasonography. The mean of arterial inflow was 28.54± 18.33 ml/min, the mean of first day fistula flow rates was 486.87 ± 226.83 ml/min, and the mean of seventh day fistula flow rates was 782.08 ± 237.88 ml/min. The relationship between preoperative arterial inflow and the first and seventh day fistula flow rates are not significant (p>0,05). Preoperative arterial inflow did not significantly affect the first and seventh day fistula flow rates, and also developing early thrombosis of arteriovenous fistula. On the other hand, the mean of fistula flow rates at seventh day was found to be significantly increased comparing to the mean of first day fistula flow rates (p<0.001).