Doctor insights on:
Av Fistula Vs Graft
Av fistula, av graft, subclavian or femoral catheter, av shunt permanent or temporary, which is better?
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
Can an AV Fistula be created by one doctor and closed (this is the only thing he is doing), so that another doctor can treat and aortic aneurysm with a graft?
Yes: Ask your doctors to communicate and to develop a treatment plan. That way everyone knows what to expect. ...Read more
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
Fistula first: Check out fistulafirst. Org. Search for buttonhole technique. ...Read more
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
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
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
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
Femoral AV fistula:
Here is a link that will show you a multitude of images of a femoral av fistula:
https://www. Google. Com/search? Hl=en;site=imghp;tbm=isch;source=hp;biw=1280;bih=922;q=femoral+av+fistula;oq=femoral+av+f;gs_l=img.1.0.0i24l3.1107.5179.0.7522.214.171.124.126.96.36.199.688.7j1.8.0....0...1ac.1.32.Img. 0.14.688.Hbqen24dzem;safe=active;ssui=on. ...Read more
Internet: If you can ask that question on this site you should be able to ask that question in google. ...Read more
Well,: An arteriovenous fistula is a disruption of the normal blood flow pattern. Normally, oxygenated blood flows to the tissue through arteries and capillaries. Following the release of oxygen in the tissues, the blood returns to the heart in veins. An arteriovenous fistula is an abnormal connection of an artery and a vein. The blood bypasses the capillaries and tissues, and returns to the heart. ...Read more
Depending on the location, an abnormal communication between arteries and veins can have many different symptoms. The purpose of correction is to alleviate the symptoms. In most cases, the aim is to stop possible deadly bleeding.
If this is related to your sudden abdominal pain, then tests should confirm it.
If it is related to headaches and one is found, it should corrected immediately. ...Read more
Connect Vein&Artery: This is when a vein is surgically connected to an artery (end-to-side anastomosis). This maintains blood flow to the hand while diverting blood into the vein. The vein becomes pressurized to arterial pressure and had much higher blood flow. Over time its size will double and its walls thicken so that it can be accessed for dialysis. Left arm is most often used because it is the non-dominant arm. ...Read more
Normal: Av fistula creates an connection between artery and vein, however there is ongoing blood flow distally into radial artery. Radial artery pulsations will be normal after the avf. Surgeons will check the radial pulse after surgery, if there is decreased pulse, they will revise the fistula to ensure adequate blood flow in the fistula and radial artery. ...Read more
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
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
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
Well,: There are two types of arteriovenous fistulas, congenital and acquired. A congenital arteriovenous fistula is one that formed during fetal development. An acquired arteriovenous fistula is one that develops after a person is born. After catheterizations, arteriovenous fistulas may occur as a complication of the arterial puncture in the leg or arm. Fistulas also form without apparent cause. In the. ...Read more
Generally...: 1) make incision, 2) find vein and inspect for appropriateness as an av fistula, 3) find artery, 4) connect the vein onto the artery, 5) close incision. The details vary slightly depending on the site on one's arm or leg, but generally the five steps listed is all that's involved. ...Read more
Not sure: You need to specify where is the strain and what lead to it. ...Read more