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Doctor insights on: Av Fistula

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Is an av fistula permanent or temporary?

Is an av fistula permanent or temporary?

Permanent w/o repair: An AV fistula, or arterial-venous fistula, is an abnormal connection between an artery & vein that allows high pressure arterial blood to travel into the low pressure venous system. It can be caused by traumatic blood vessel injury or purposely created surgically by a doctor (e.g for dialysis access). An AV fistula is always permanent unless repaired surgically or with covered stenting of vessels. ...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


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What is a detailed step-by-step description of an av fistula procedure?

Depends: Sometimes it's just a single small incision with vein brought over to the artery. Other times two or more incisions of great length are needed. Discuss your case with your surgeon. ...Read more

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Can you tell me how the procedure for av fistula placement works?

Can you tell me how the procedure for av fistula placement works?

It works well.: A fistula is the best option for long-term hemodialysis. Your own artery and vein are connected in a small surgical procedure. It takes 6 weeks or more to grow or mature and then 2 needles are inserted for dialysis. There is no artificial material as in an av graft so the fistulas stay open. See www, fistulafirst, org for more info. ...Read more

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Why is my av fistula ugly?

Chronic use: Av fistulas tend to become dilated with use and time, and the access into the fistula should be rotated in different sites. The fistulas are close to the skin, and the majority are prominent, and there is no way to get around this. ...Read more

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Can a person have an external av fistula?

Yes- not practical: It turns out that the first "fistulas" made years ago when dialysis first started were "external" fistulas. They were actually synthetic/plastic tubes connecting an artery to a vein. There were significant problems with bleeding and infections. These "external" fist las are not used today. If someone needs urgent dialysis they get a catheter. For long term dialysis either a fistula or a graft. ...Read more

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How long for av fistula to mature?

Many factors: There are many things which effect avf maturation. Vein size, location, and type of fistula to name a few. In the best of circumstances, expect 6-8 weeks, but many times a fistula will take longer or need additional procedures to help it mature fully. ...Read more

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What does it mean for an av fistula to mature?

Growth for dialysis: A primary arterio-venous fistula ( that means where an artery and a vein have been sutured directly into each other as opposed to an interposition graft) takes some time for the vein to grow larger.The size of the vein is important because it allows the flow requirements of dialysis.This often takes a month or two to happen. ...Read more

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Is it possible for a failed av fistula be reactivated?

Needssurgical eval: Clotting of the avf is the major problem facing patients on dialysis. Generally, it needs to be evaluated and declotted rapidly to be salvaged (within 1-2 days) by a vascular surgeon or interventional radiologist. The focus more recently is early prevention to prevent clotting from occuring through close monitoring of blood flows and pressures. ...Read more