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Doctor insights on: Av Fistula Aneurysm

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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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Why is my av fistula ugly?

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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What is the definition or description of: av fistula creation?

What is the definition or description of: av fistula creation?

Artery to vein Conni: An av fistula is a direct connection made by a surgeon connecting a vein to an artery. These are usually performed in the wrist or elbow crease. These are created to increase blood flow in the vein so it can be used for dialysis access. ...Read more

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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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Is it required to shut down a mature av fistula for surgery on the same side?

Is it required to shut down a mature av fistula for surgery on the same side?

Usually yes: If there are 2 functioning av accesses on the same side, there is higher risk of access steal (not enough blood flow to the hand, producing hand pain and sometimes gangrene of the fingers). If the mature access is having problems (pseudo aneurysms, stenosis), most times we can repair it rather than sacrifice it to place another access. ...Read more

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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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Is it true that av fistula is permanent?

Need info: A surgically created fistula for dialysis is not removed unless infected. An av fistula from other sources may need repair. Why do you have an av fistula? ...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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Dr. Shadi Abu Halimah
1,370 doctors shared insights

Aneurysm (Definition)

An aneurysm is a condition where there is weakness in the wall of a blood vessel. A clot can form in the vessel as the vessel widens or expands. An artery with an aneurysm can ...Read more