What is the most common site for an AV shunt?

The most common site for an arteriovenous (AV) shunt is the radial artery to the radial vein. This site is preferred due to several practical considerations. The radial artery is typically superficial and easily accessible for the surgical creation of an AV fistula, which is crucial for patients requiring hemodialysis.

The radial artery provides a good blood flow rate, which is essential for effective dialysis, allowing for adequate removal of waste products from the blood. Additionally, the proximity of the radial vein makes this configuration feasible, as it facilitates better blood return and reduces complications.

Using this site minimizes the risk of complications compared to other locations, maintaining adequate perfusion in the hand and ensuring patient safety. Therefore, the radial artery to radial vein is the optimal choice for creating an AV shunt, particularly in the context of hemodialysis.