What is the purpose of a graft in vascular procedures?

A graft is used in vascular procedures primarily to divert blood flow from one artery to another, ensuring that blood can bypass an area of blockage or damage. This technique is often necessary in cases of peripheral artery disease, where blood supply to a limb is compromised due to narrowed or blocked arteries. By creating a new pathway for blood flow, the graft helps restore adequate circulation to the affected area.

The graft can be made from synthetic materials or harvested from the patient's own body, such as from another artery or vein. Its role is crucial because it allows for the maintenance of blood flow and function while minimizing ischemic damage to tissues that rely on that blood supply.

Other options may involve processes related to vascular health, but they do not accurately describe the primary function of a graft in this context. Connecting arteries directly typically refers to anastomosis, which is different from using grafts. Restricting blood flow through a vein could lead to complications and does not reflect the purpose of grafting. Removing blockages in arteries involves a different approach altogether, such as angioplasty or atherectomy, rather than using a graft.