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Doctor insights on: How Long Can A Fistula Be Effective In Dialysis Patients

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How does a fistula work to dialysis patient?

How does a fistula work to dialysis patient?

Arterial Diversion: When an artery is connected to a vein, the vein walls thicken and become muscular (due to the new high arterial pressure). This makes finding the vein easier. More importantly, the large bore needles can be removed and pressure held, with clot forming in the muscular walls, to stop the bleeding. If the veins weren't muscular, putting the needle in and taking it out safely, aren't possible. ...Read more

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Dr. Quresh Khairullah
507 doctors shared insights

Dialysis (Definition)

Simple answer is that it is a medical technology used primarily to provide an artificial replacement for lost kidney function in people with renal failure. Hemodialysis remove wastes and excess water from the blood by circulating blood outside the body through an external filter, called a dialyzer. Blood and dialysate flow through in opposite directions and the ...Read more


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What is the process of decloting an av fistula for dialysis patients?

What is the process of decloting an av fistula for dialysis patients?

Two methods : There are two methods: mechanical or chemical. Occasionally both methods are used. In general, the doctor accesses the av graft or fistula with a needle and places a tube into the graft. He then uses wires and catheters to cross the clot and inject clot busting meds. There are devices he can use that also break up clot. Or, he can open the graft and use special balloons to pull clot out. ...Read more

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On dialysis patient having some problems all fistula are failed and both juglar are block and capd also non working further what I do I m a tech pl?

Transplant?: Are you a transplant candidate? If not and you need hemodialysis an interventional radiologist can likely evaluate you for and subsequently place a dialysis catheter directly into your inferior vena cava. Check with your nephrologist or surgeon for an appropriate referral. ...Read more

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Why is it that if a dialysis patient has a ruptured fistula and is haemorrhaging, you shouldn't place a torniquet proximal to the haemorrhage?

Why is it that if a dialysis patient has a ruptured fistula and is haemorrhaging, you shouldn't place a torniquet proximal to the haemorrhage?

Direct pressure: Hold direct pressure over the leak try to control without clotting the entire fistula or graft, so that it may be salvaged. Tourniquet may stop the bleeding if high enough pressure but may clot the fistula and require more extensive repair. Call 911 and get help and transport. ...Read more

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How do physicians de-clot an av fistula for dialysis patients?

How do physicians de-clot an av fistula for dialysis patients?

Open or endo: It can be done with tpa (alteplase) (a high-potency medication to dissolve blood clot) and a rotor-rooter device inserted through a needle stick in the access. I tend to make a small incision to remove the clot with a balloon catheter, then do an angioplasty on the area of stenosis (narrowing) which you usually find in the vein or graft. ...Read more

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What is the purpose of a AV fistula for dialysis patients? I can't find anything good on the internet to explain this, please add link if you have one

High flow: An A-V fistula creates a peripheral region of high blood flow so that a large volume of blood can be removed and returned to the body for the "cleaning" done by the dialysis machine. ...Read more

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During dialysis why does the subclavian catheter have darker blood than in patients with a fistula?

During dialysis  why does the subclavian catheter have darker blood than in patients with a fistula?

Venous blood: A subclavian catheter has only venous, deoxygenated blood returning from the body. A fistula contains oxygenated arterial blood coming from the heart. This is the reason for the bright red blood seen in fistulas. ...Read more

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For a dialysis, why is the subclavian catheter has darker blood rather than in patient with fistula?

For a dialysis, why is the subclavian catheter has darker blood rather than in patient with fistula?

Catheter vs fistula: An a-v fistula (avf) is a connection between an artery and a vein, that's why its called an a, for artery, v, for vein, fistula. Arterial blood has more oxygen, making it redder, than venous blood. A subclavian catheter has both blood tubes in the vein, where there is less oxygenated blood, as it does not have any arterial inflow. That's why it has darker blood than an avf. ...Read more

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I am a dialysis patient for 2 yrs. I lift 5 to 10 pds of weights, is it okay for my av fistula. And what can I take to build muscle?

I am a dialysis patient for 2 yrs. I lift 5 to 10 pds of weights, is it okay for my av fistula. And what can I take to build muscle?

AVF and weights: The answer to your question about lifting weights being ok for your avf is "yes". You need to speak to your renal dietician about what you can eat to build up muscle. Good luck. ...Read more

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I am dialysis patient. Doing since last 6 years. I had line in my neck n when they remove it got clot. Caz of that my fistula hand is swelled.

I am dialysis patient. Doing since last 6 years. I had line in my neck n when they remove it got clot. Caz of that my fistula hand is swelled.

Venous Hypertension: The fistula causes increase blood flow through the veins draining the arm. If the veins are blocked or narrowed (both possible because of long term dialysis catheter) the increased pressure causes more fluid to collect in the arm and cause swelling. An interventional radiologist might be able to treat the narrowing with a baloon dilation and stunting. ...Read more

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Fistula (Definition)

A fistula is an abnormal connection between two places. Most commonly, it originates somewhere in the intestine and communicates to another location in the intestine or in the skin. A fistula can develop after abdominal surgery, with inflammatory bowel disease, cancer, anorectal abscess, and ...Read more