What is the recommended insertion angle for cannulation in an AV graft?

The recommended insertion angle for cannulation in an arteriovenous (AV) graft is ideally around 45 degrees. This angle allows for optimal penetration of the needle into the graft while minimizing damage to the surrounding tissue. It enhances the stability of the needle within the graft, helping to ensure good blood flow and preventing complications such as infiltration or thrombosis.

While angles that are too shallow or too steep may lead to difficulties in accessing the graft, a 45-degree angle strikes the right balance, providing both effective entry into the graft and reducing the risk of injury to the vessel wall. Therefore, the 45-degree angle is established as the standard practice for achieving a successful cannulation in AV grafts.