Dr. K. Athirath Reddy, Vascular Surgery
An Indian clinician scanning a forearm for dialysis access

Patient education

Understanding vascular access for dialysis

What a fistula, graft, and catheter are for, and which access changes dialysis patients should report quickly.

01

Three ways to reach the blood

Haemodialysis needs repeated access to the bloodstream. A fistula connects an artery to a nearby vein, usually in the arm, so the vein enlarges. A graft uses a short tube when a suitable vein is not available. A catheter sits in a large central vein and can be used sooner, but infection and clotting become more likely the longer it stays.

For many people who will need dialysis for a long time, a working fistula is the access with fewer infections. It still has to be planned early, because a new fistula often needs weeks to mature before it can be needled.

02

How to protect an access

These steps do not replace surveillance at the dialysis unit. They catch changes between sessions.

  • Feel the thrill, the soft buzz over the fistula, on the days you are at home
  • Avoid blood pressure cuffs and blood tests on that arm unless the dialysis team directs otherwise
  • Do not scratch or cut a scab over a recent needle site
  • Report prolonged bleeding after dialysis

03

Changes that should not wait

A thrill that has disappeared may mean the access has clotted. The chance of reopening it is better when the dialysis unit knows the same day. A hand that becomes cold, pale, or painful can mean too little blood is reaching the fingers. Fever, redness, or pus needs urgent review because access infection can spread into the bloodstream.

This page is general education about vascular conditions and the way they are usually assessed. It does not diagnose a person or replace a consultation. Decisions about tests and treatment depend on an individual clinical assessment. Nothing on this website promises a particular result, a cure, or freedom from pain.

Questions

Frequently asked questions

Short answers about vascular consultation, the clinic, and urgent symptoms.

What does a vascular surgeon treat?

A vascular surgeon assesses and treats diseases of the arteries and veins, other than the heart itself and the vessels inside the brain. This includes varicose veins, peripheral arterial disease, aneurysms, deep vein thrombosis, dialysis access problems, vascular injury, and many complications of poor circulation, including diabetic foot disease.

When should I consult a vascular surgeon?

Arrange a consultation for leg pain on walking, varicose veins with aching or skin change, a foot or leg wound that is not healing, new leg swelling, or a known circulation problem. Sudden severe limb pain, a cold pale limb, heavy bleeding, chest pain, or sudden breathlessness needs emergency care, not a routine clinic visit.

What are the common symptoms of varicose veins?

Common symptoms are twisted visible veins, aching, heaviness, itching, ankle swelling, and cramps. Some people have few symptoms. Skin darkening, hard patches of skin, bleeding from a vein, or an ulcer near the ankle should be assessed.

What are the warning signs of poor blood circulation in the legs?

Warning signs include calf or thigh pain on walking that eases with rest, cold feet, pale or shiny skin, and wounds that heal slowly. Pain in the foot at rest, or a toe that becomes blue or black, needs prompt medical assessment.

When should a diabetic foot ulcer be evaluated?

A diabetic foot ulcer should be evaluated as soon as it is noticed. Do not wait to see whether it closes on its own. Fever, spreading redness, a foul smell, black tissue, or a suddenly cold foot needs same-day emergency care.

What is peripheral arterial disease?

Peripheral arterial disease is narrowing of the arteries that supply the limbs, most often the legs. It is commonly related to fatty deposits in the artery wall. It may cause pain on walking and, when more severe, pain at rest or tissue loss.

Jade Clinics, Kokapet

Request a vascular consultation in Kokapet

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