A number of studies have been published and presented at meetings on the efficacy of Vasc‑Alert as a tool for access site surveillance. These studies are summarized in the following table:

In addition, Vascular Access Surveillance Reduces Vascular Access Thrombosis Rates (VATR), a poster presented by Zasuwa, Frinak, Besarab and Yee at the 2005 ASN Meetings, showed a persistent and significant decline in thrombosis rates (p< 0.05) following the introduction of Vasc-Alert.
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1. Frinak S, Zasuwa G, Dunfee T, Besarab A, Yee J. Dynamic venous access pressure ratio test for hemodialysis access monitoring. Am J Kidney Dis. 2002;40(4):760-8.

   This is the original study on the efficacy of this method, and was published in the American Journal of Kidney Disease in October of 2002.
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2. Frinak S, Zasuwa G, Besarab A, Yee J, Dynamic Venous Access Pressure Surveillance in Arterio-Venous (AV) Fistula

   Unpublished data from 2004 study required for FDA approval of Vasc-Alert use for patients with fistulas.
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3. Hammes M, Funaki B, Hirschman K, Kennedy J, Aneziokoro O, Vasc‑Alert is an Effective Tool to Predict Venous Stenosis

   ASN Poster 2006; University of Chicago study
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4. Stewart G, Vasc‑Alert Statistics,

   Presentation at Network 9/10 Meeting 2007, Chicago
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5. Frinak S, Zasuwa G, Besarab A, Yee J, Arterial Pressure Ratio Test for Hemodialysis Access Monitoring of Arteriovenous Grafts and Fistulas

   Unpublished data from 2004 study required for FDA submission of Vasc-Alert use for arterial surveillance.
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