Vascular surgery covers a range of surgical procedures undertaken on veins and the lymphatic system (an important part of the body's immune system) – but the most important part of the vascular surgeon’s work is to reconstruct, unblock, or bypass arteries.
In many cases, when first diagnosed, blocked or narrowed arteries are treated with medication. Surgery only takes place when blood flow is dangerously restricted. As such vascular surgery is predominantly an urgent or emergency response service and must be organised so that patients can get timely access to effective care.
Often, patients receiving vascular surgery are frail, with the surgery urgently needed to repair an aneurysm, improve blood flow to an organ (e.g. the brain) to prevent a stroke, or to a limb to avoid the need to amputate.
Overall, the vascular service comprises the elements shown in the diagram.