News | January 24, 2008

New Catheter Beats Out Others on Blood Flow at Seven Weeks

January 25, 2008 – AngioDynamics’ recently launched self-centering, tunneled hemodialysis access catheter showed better flow rates at seven weeks of use compared to competitive catheters, according to a preliminary study of Centros.

This preliminary study was presented by Stephen R. Ash, M.D., FACP, on January 23, 2008, at the International Symposium for Endovascular Therapy (ISET) in Hollywood, FL. Dr. Ash, who designed Centros. The study indicated not only that the self-centering catheter provides highly acceptable flow rates at modest negative pressure without deterioration in flow rate over seven weeks of use, but even with tips positioned in the superior vena cava (SVC) rather than within the atrium. Flow rate for Centros at the seven week follow-up point was 401mL/min, compared to the control group of competitive catheters at 348mL/min. (p

Centros is a self-centering, tunneled hemodialysis access catheter that has a curved configuration that allows it to be placed in the superior vena cava in a centered position, without touching the vein walls. Rather than being placed in the atrium, the tip of the catheter is placed in the lower third of the superior vena cava.

“Centros changes the conventional catheter paradigm from a line to a plane, meaning the catheter fits into a cylinder in the middle of the vein and won’t lie in contact against the vein wall like prevalent dual-lumen tunneled dialysis catheters,” said Dr. Ash. “Contact with the vein wall often results in sheathing or clots, which can easily obstruct the ports. While a large clinical study will more fully document the benefits of this new design approach, the preliminary study gives us confidence that Centros will have long-term advantages for patients.”

For more information: www.angiodynamics.com

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