01
Strong Pulse at Site
A buzzing or throbbing sensation, known as a thrill, felt over the fistula.
Arteriovenous (AV) Fistula
Understanding
Arteriovenous
(AV) Fistula
An AV fistula is the gold standard vascular access for hemodialysis. It is created surgically by connecting an artery directly to a vein, which makes the vein stronger and able to handle repeated dialysis sessions.
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Arteriovenous (AV) Fistula
Understanding
Arteriovenous (AV)
Fistula
An AV fistula is the gold standard vascular access for hemodialysis. It is created surgically by connecting an artery directly to a vein, which makes the vein stronger and able to handle repeated dialysis sessions.
Compared to catheters or synthetic grafts, fistulas have fewer complications, lower infection risks, and better long-term survival rates. Early planning is essential to allow the fistula to mature before dialysis begins.
Common Symptoms
Common AV Fistula Symptoms
Signs that indicate potential issues with your fistula
02
Swelling
Mild swelling around the fistula site, especially after creation.
03
Skin Changes
Shiny or stretched skin near the fistula.
04
Arm Discomfort
Occasional ache or heaviness in the arm.
05
Bleeding Issues
Prolonged bleeding after dialysis needle removal.
06
Clotting Signs
Loss of thrill or a sudden change in the sound, known as a bruit.
Causes & Risk Factors
What Can Influence
AV Fistula Success?
Several factors can influence AV fistula success and the risk of complications. Vascular health, existing medical conditions, previous access problems, smoking, age and blood clotting disorders can all affect fistula function and long-term survival.
Kidney Failure
Patients with end-stage renal disease needing dialysis require reliable vascular access for ongoing treatment.
Vascular Health
Healthy veins and arteries are required for a good fistula and can influence its ability to mature and function effectively.
Previous Access Failure
A history of catheter or graft issues may influence the choice and planning of AV fistula creation.
Age & Comorbidities
Older patients or those with diabetes may face higher complication risks that can affect fistula outcomes.
Smoking
Smoking reduces vessel health and can increase the risk of fistula failure.
Blood Clotting Disorders
Conditions that promote clotting can threaten fistula survival and interfere with normal blood flow.
Accurate Diagnosis & Monitoring
Ensuring Your AV Fistula
Functions Effectively.
Regular follow-up helps maintain AV fistula function and detect narrowing, clotting, or reduced blood flow early. Physical examination and Duplex ultrasound help monitor fistula health, while any change in thrill or bruit should be evaluated promptly to prevent fistula failure.
Clinical Assessment
Physical Exam
Checking for thrill (buzz) and bruit (whooshing sound) with a stethoscope.
Vascular Imaging
Duplex Ultrasound
Used to assess blood flow and detect narrowing or clotting within the fistula.
AV Fistula Assessment
Vascular Imaging
Venography
X-ray with contrast to visualize vein structure and assess the vascular anatomy.
Dialysis Monitoring
Flow Measurement
Monitoring dialysis adequacy and blood flow through the fistula to help assess its effectiveness.
Advanced Treatment Options
Advanced Treatment for AV Fistula
Treatment is tailored to the condition and function of the fistula. Management may include surgical creation, minimally invasive procedures to restore blood flow, clot removal, stent placement and regular monitoring to maintain reliable dialysis access.
01
Dialysis Access
Surgical AV Fistula Creation
Connecting an artery to a vein, usually in the arm, to establish dialysis access.
Key Benefits
- Preferred vascular access
- Lower infection risk
- Long-lasting solution
02
Flow Restoration
Fistuloplasty
(Angioplasty)
Balloon procedure to open narrowed fistula segments and improve blood flow through the dialysis access.
Key Benefits
- Restores proper flow
- Minimally invasive
- Quick recovery
03
Clot Removal
Thrombectomy
Removing blood clots that block the fistula and interfere with normal blood flow through the dialysis access.
Key Benefits
- Restores use of fistula
- Immediate relief
- Outpatient procedure
04
Vessel Support
Stent Placement
Metal mesh tube used to keep a narrowed vein open and support continued blood flow through the fistula.
Key Benefits
- Maintains long-term flow
- Used in recurrent narrowing cases
05
Long-Term Care
Monitoring & Care
Regular check-ups and ultrasound to ensure proper functioning and identify problems affecting the fistula early.
Key Benefits
- Prevents failure
- Detects early issues
- Improves lifespan of fistula
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Let's Talk About Your AV Fistula
If you are experiencing changes in the thrill or bruit, swelling, prolonged bleeding after dialysis, arm discomfort or other concerns with your fistula, schedule a vascular evaluation to assess its function and determine the appropriate treatment approach.
Specialist Consultation
Discuss your fistula-related symptoms and concerns during a focused vascular consultation.
Individual Assessment
Your fistula can be assessed for changes in blood flow, thrill, bruit and other clinical findings.
Treatment Discussion
Appropriate treatment options can be discussed based on your examination and diagnostic findings.
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