Abstract
ObjectiveWe aimed to compare routine preoperative color-coded duplex ultrasound (DUS) to clinical examination (CE) alone in surgery for arteriovenous fistula (AVF) with special emphasis on long-term outcomes and cost effectiveness. MethodsAll patients undergoing an AVF formation or revision between January 1, 2011, and December 31, 2016, at our tertiary referral center were subject to analysis. Routine DUS was performed in 114 patients and CE alone in 217 patients. Primary and secondary patency, the need for revision or reintervention to obtain patency, and individual as well as overall costs were analyzed. ResultsPrimary patency rate was higher in AVF after DUS compared with CE alone at 62% vs 26% (P < .05), respectively. Patients receiving DUS had significantly lower rates of revision and revisions per patient when compared with CE (25.4% vs 59.4% [P < .0001]; 0.36 ± 0.71 vs 1.06 ± 1.55 [P < .0001], respectively). Costs per patient were significantly lower in the DUS group compared with CE at 4074€ vs 6078€ (P < .0001). ConclusionsWe were able to show that patients receiving preoperative DUS showed higher patency rates and needed fewer revisions. Standard preoperative ultrasound examination is an easy tool to improve outcomes and cost effectiveness in AVF surgery.
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