Dialysis Fistula Management

What is a dialysis fistula?

An arteriovenous (AV) fistula is a vascular access created by connecting an artery and vein, typically in the arm, for patients who require long-term hemodialysis. It provides the blood flow needed for the dialysis machine. How well the fistula functions directly affects dialysis efficiency and patient safety.

Common problems

• Fistula stenosis: reduced blood flow, weaker thrill (vibration)
• Fistula occlusion: sudden loss of thrill, inadequate flow during dialysis
• Aneurysm: localized abnormal vessel dilation
• Infection or poor healing at puncture sites

Evaluation and management

Regularly checking your fistula's thrill and bruit is an important way to catch problems early. If you notice a weakened or absent thrill, or reduced blood flow during dialysis, seek prompt evaluation. Ultrasound or angiography can identify the location of stenosis or occlusion, after which your physician will explain appropriate management to maintain long-term fistula function.

Daily care reminders

Avoid measuring blood pressure or carrying heavy objects on the fistula arm. Ensure proper hemostasis and cleanliness at puncture sites after dialysis, and seek prompt follow-up if redness, swelling, pain, or fever develops.