It is a connection between arteries and veins constructed on one of the arm for regular dialysis access .

Vascular surgery is indicated when a patient has vascular disease that cannot be treated by less invasive, non-surgical treatments. The purpose of vascular surgery is to treat vascular diseases, which are diseases of the arteries and veins. Arterial disease is a condition in which blood clots, arteriosclerosis, and other vascular conditions occur in the arteries. Venous disease involves problems that occur in the veins. Some vascular conditions occur only in arteries, others occur only in the veins, and some affect both veins and arteries.

For some vascular problems, the cause isn’t known. Vascular disease causes include:

• High cholesterol.
• High blood pressure.
• Smoking or using tobacco products.
• Diabetes.
• Genes you get from your parents.
• Medicines.
• Injury.
• Infection.
• Blood clots.

Staphylococcus aureus and coagulase-negative staphylococci are the most common pathogens of vascular surgery SSI. According to statistics, both early (within 4 months after operation) and late (more than 4 months after graft infection), one forth to a half risk is caused by Staphylococcus aureus, gram-negative bacteria, and fungal infections are rare, generally only occurs in immunosuppressed patients