Adding access blood flow surveillance reduces thrombosis and improves arteriovenous fistula patency: a randomized controlled trial

Purpose Stenosis is the main cause of arteriovenous fistula (AVF) failure. It is still unclear whether surveillance based on vascular access blood flow (QA) enhances AVF function and longevity. Methods We conducted a three-year follow-up randomized, controlled, multicenter, open-label trial to compa...

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Published in:The journal of vascular access 2017-07, Vol.18 (4), p.352-358
Main Authors: Aragoncillo, Inés, Abad, Soraya, Caldés, Silvia, Amézquita, Yésika, Vega, Almudena, Cirugeda, Antonio, Moratilla, Cristina, Ibeas, José, Roca-Tey, Ramón, Fernández, Cristina, Macías, Nicolás, Quiroga, Borja, Blanco, Ana, Villaverde, Maite, Ruiz, Caridad, Martín, Belén, Ruiz, Asunción M., Ampuero, Jara, de Alvaro, Fernando, López-Gómez, Juan M.
Format: Article
Language:English
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Summary:Purpose Stenosis is the main cause of arteriovenous fistula (AVF) failure. It is still unclear whether surveillance based on vascular access blood flow (QA) enhances AVF function and longevity. Methods We conducted a three-year follow-up randomized, controlled, multicenter, open-label trial to compare QA-based surveillance and pre-emptive repair of subclinical stenosis with standard monitoring/surveillance techniques in prevalent mature AVFs. AVFs were randomized to either the control group (surveillance based on classic alarm criteria; n = 104) or to the QA group (QA measured quarterly using Doppler ultrasound [M-Turbo®] and ultrasound dilution [Transonic®] added to classic surveillance; n = 103). The criteria for intervention in the QA group were: 25% reduction in QA, QA
ISSN:1129-7298
1724-6032
DOI:10.5301/jva.5000700