Final answer:
The open placement of a synthetic arteriovenous graft from the left brachial artery to the cephalic veins above the elbow creates a reliable and long-lasting access point for hemodialysis. It involves connecting the brachial artery to the cephalic vein using a synthetic graft. This placement is preferred because it provides a more secure and accessible site for hemodialysis access.
Step-by-step explanation:
The open placement of a synthetic arteriovenous graft from the left brachial artery to the cephalic veins above the elbow is performed as a preparation for hemodialysis in patients with kidney failure. This procedure creates a connection between an artery and a vein, allowing easy access for the removal and return of blood during hemodialysis. The rationale behind this placement is to provide a reliable and long-lasting access point for hemodialysis treatments.
During the procedure, a synthetic graft is used to create the connection between the brachial artery and the cephalic veins. The graft acts as a bridge between the artery and vein, allowing blood to flow from the high-pressure artery into the vein. This graft helps ensure sufficient blood flow during hemodialysis.
The open placement of the graft above the elbow is preferred because it provides a more secure and accessible site for the hemodialysis access. The cephalic vein is a superficial vessel in the upper arm that leads to the axillary vein, which is a major vein in the axillary region. This placement allows for easier cannulation and reduces the risk of complications such as infection or clotting.