What is a significant risk immediately after surgery for repair of aortic aneurysm? 

Renal perfusion is a phrase used to describe blood flow to the kidneys and is commonly assessed with a test called renal scintigraphy. Renal perfusion is the measure of how well blood is delivered to the kidneys and how well the kidneys function. An aortic aneurysm is a ballooning of the aorta. It is a bulge in a section of the aorta, which is the body's main artery.

The aorta transports oxygen-rich blood from the heart to the rest of the body. Aneurysms can happen at any point along the aorta. The abdominal aortic aneurysm, in its subrenal portion that is located below the renal artery, is the area most often affected by an aneurysm.