The role of surveillance in mature arteriovenous fistula management

The existing guidelines recommend arteriovenous fistulae (AVF) surveillance by access blood flow (Qa) measurement and the correction of hemodynamically significant stenoses to prolong access survival. Unfortunately, many studies supporting these recommendations are inadequate methodologically; there...

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Bibliographic Details
Published in:The journal of vascular access 2004-04, Vol.5 (2), p.57-61
Main Authors: Tessitore, N, Bedogna, V, Poli, A
Format: Article
Language:English
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Summary:The existing guidelines recommend arteriovenous fistulae (AVF) surveillance by access blood flow (Qa) measurement and the correction of hemodynamically significant stenoses to prolong access survival. Unfortunately, many studies supporting these recommendations are inadequate methodologically; therefore, both the optimal criteria for surveillance and the value of preventive stenosis repair in AVF remain controversial. Recent literature confirms that Qa measurement allows an accurate identification of both stenosis (area under the curve (AUC) ranging from 0.80-0.93) and access at risk of failure (AUC ranging from 0.82-0.98) in AVFs and suggests a Qa 25% as optimal predictors for stenosis and a Qa
ISSN:1129-7298
1724-6032
DOI:10.1177/112972980400500203