Which graft configuration uses a loop to connect a proximal artery to a distal vein?

• A. PTFE Loop Graft
• B. Brescia-Cimino Fistula
• C. Brecia-Cimino Fistula
• D. Autogenous Fistula

Answer: (A)

Loop configurations in hemodialysis access use a loop-shaped conduit to bridge a proximal artery to a distal vein with a synthetic graft. This looping arrangement creates a reliable, cannulatable pathway when native vessels aren’t suitable for a fistula. The PTFE Loop Graft fits this scenario, providing a looped connection between the artery and vein. In contrast, a Brescia-Cimino fistula is an autogenous connection between native vessels (usually the radial artery and cephalic vein at the wrist) arranged in a more straightforward, non-looped fashion and relies on the patient’s own vessels. An autogenous fistula, more broadly, refers to using the patient’s vessels without any graft material.