Doctor insights on:
Shunt Vs. Fistula
Fistula vs shunt: Basically, fistulas are natural occurring, abnormal communications between structures (e.g. Between the trachea & the esophagus or between the bladder & the vagina) & shunts are man made communications between structures (e.g. Between an artery & a vein for dialysis or between a cerebral ventricle & the peritoneal cavity for removing excess cerebrospinal fluid in hydrocephalus). ...Read more
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
Dialysis shunts.: A shunt is a term for the connection that shunts blood from an artery to a vein, bypassing the microscopic network in the tissues that normally connect them. This allows a high blood flow access for pulling blood from the body to the dialysis filter. A fistula is a shunt that has a direct connection of a native artery and native vein, rather than using an artificial tube to make the connection. ...Read more
Shunts: Can also be arterio venous fistulas that have occurred naturally due to disease or trauma or surgeon made for vascular access for dyalysis. There are other types of shunts and fistulas. Need more specifics to help any further with an answer. ...Read more
I'm wondering why can't you do an IV on a fistula/shunt and if you do are there any complications?
Here's why: Here's why we don't place IVs in fistula/shunt. First, blood flow is high pressure in them and would force blood backward through IV. Second, placing an IV into the fistula/shunt by staff who aren't used to it often injures the fistula/shunt resulting in issues like pseudoaneurysms. Shunts/fistulae are important so we save them for your dialysis! ...Read more
Av fistula, av graft, subclavian or femoral catheter, av shunt permanent or temporary, which is better?
What happens if shorting of artery and vein (using fistula/decron shunt), will there be circulatory problems, gangrene or will there be no effect?
Arteriovenous fistula, shunt, graft have hemodynamic effects.
Usually done in forearm or arm with excellent alternate flow called collateral and checked prior to surgery. Total blood flow is increased and has cardiac effects, also venous dilation, and palpable flow thrill are part of the local effects. ...Read more
Differences: Usually, a perianal abscess is caused by an underlying fistula. A fistula is a tunnel that communicates the inside of the Anus and the outside skin. The entrance is inside the anus and the exit is at the skin. When the exit is closed, the Pus collects beneath the skin forming and abscess and it usually ruptures or is open by a physician. Fistulas have a 50% healing rate after drainage of the absce ...Read more
Tear vs tunnel!: Anal fissure is a very painful tear of the sensitive anal lining, while a fistula is an infected tunnel that connects inside with outside. Often a fissure will heal without surgery, while a fistula usually won't, but get checked if you think you have either if these painful anorectal problems. ...Read more
Anal abscess/fistula: True perianal abscess arise from anal glands just up inside the anus. The gland gets blocked but pressure builds up and a tract is formed leading out from the gland to the perirectal spaces (anal fistula). An abscess forms. When the abscess is drained the tract (or fistula) dries up 50% of the time. In the other 50% it remains as an anal fistula, manifesting as a chroninc draining sinus. ...Read more
Tear vs. Tunnel: An anal fissure is a tear in the lining of the anal canal, just inside the opening, and typically causes pain and bleeding. An anal fistula is an abnormal communication (tunnel) from inside the anal canal out to the perianal skin, usually the result of a prior perirectal abscess. It may cause drainage, swelling, discomfort and recurrent abscesses. Both are treatable conditions. ...Read more
Different diseases: Different common ano-rectal diseases. Fissure is crack in anal canal, hemorrhoids are varicose veins like vascular structures protruding from anorectal area under the mucous membrane, anal fistula communicate with a internal opening at anorectal junction to external opening (s) in perennial area. See you doctor will tell your problem. ...Read more
Very different: Hemorrhoids are veins that dilate in the rectum, can be internal or external. Fissure is a crack on the skin of the anal canal, cause severe pain when having a bowel movement. Fistula is a connection between the inside of the rectum and the skin surrounding the anus. Usually start as an abscess around the anal canal, very painful too ...Read more
Different problems: An anal fissure is a tear in the lining of the anal canal causing pain and bleeding. An anal fistula is a tunnel from inside the anal canal out to the perianal skin. It may cause drainage, pain and swelling. There are internal hemorrhoids which may prolapse and cause bleeding, discomfort and itching, and external hemorrhoids which may cause pain or difficulty with cleaning. ...Read more
Hemorroid--engorged blood hemorrhoidal blood vessel
fistula--connection between anal skin and inside your anus or rectum
fissure--skin tear. ...Read more
I have Crohn's disease. How can I tell the difference between an anal fistula (had one surgically removed 10 years ago) and a hemorrhoid?
You can not but: Your doctor can, due to training and experience. When crohn's disease involves anorectal area, recurrent fistulas, infections, pain, drainage, local infections are common, make the diagnosis difficult, tissue biopsy (pathology) is the only way to distinguish from other conditions. ...Read more
Often associated: About 1 in 4000 live births results in an anomaly of the esophagus &/or trachea. The most common form is esophageal atresia (ea) with distal tracheosesophageal fistula (tef) -- the upper and lower parts of the esophagus (swallowing tube) are not connected, & the lower part is connected to the trachea (breathing tube). There can also be ea by itself, or tef by itself, or other rarer combinations. ...Read more
I think I hav a pilonidal cyst on my butt crack, but I'm not sure if its a fistula or cyst, can u tell me the difference? It's not that painful
Position: Pilonidal cysts are typically found in the crease between the buttocks overlying the sacrum. Anal fistulae are found around the anus. Both will have a small amount if drainage at times and both can have waxing and waning infections. Treatment of either if these problems is surgical. Ask your primary care physician hit a surgical referral. ...Read more
What is the difference between prominent veins and varicose veins? When I have anal fistula I have restless leg and developed to have prominent veins.
Varicose Veins: varicose veins are a result of venous insufficiency secondary to broken venous valves. It usually progresses to pain, swelling, skin darkening of the legs and sometime it may cause restless leg syndrome. It can also lead to superficial thrombophlebitis and subsequently to deep vein thrombosis. This should be treated and I recommend seeing a general surgeon who treats Varicose veins. ...Read more
So my neurosurgeon said my shunt is fine but it is causing me pain when I try to sleep she said just wait 2 more weeks what difference could that make? I need to sleep more then 3 hours a night
Sleep is Important: There are two ways to approach this issue. If the pain is occurring only when you are lying down, there is a chance that the pressure is going up with that position, which could mean the shunt opening pressure is set too high. If pain at the shunt site is the problem, you might ask your neurosurgeon if it would be reasonable to use pain medications or a sleep medication for a few weeks. ...Read more
Ans: Yes it is possible to feel the spinal fluid. ...Read more
What's are the difference between the three available programmable shunts commonly used to treat hydrocephalus?
Several differences exist. One the number of pressure settings, available to program, another is the ability to tolerate exposure to mri. Finally, the ability to 'virtually shut the device off' by using a high pressure setting is another feature present that may or may not be present in a given device.
Disclosure: I work for one of the companies that make these devices. ...Read more
Doc didn't have answer 4 2nd time he said come back in a month what difference will that make could it b vp shunt surgery?
What is the: Main problem that you would like addressed. Perhaps one of us at Health Tap can be of help to you. ...Read more
Vp shunt is vibrating in head and it hurts Doc says wait 2 weeks but I cant sleep What difference would 2 weeks make?
Waiting for change: If the shunt fails, 2 weeks would allow you doc to see if there were any changes that correlate with the symptoms. It would help them determine if the shunt was the source of the problem. ...Read more
Why do some people w/vp shunt have a scar near belly button, while others under the rib cage? Is there any difference?
Surgeon preference: This is because different surgeons like to make incisions for the peritoneal portion in different places. It just boils down to surgeon routine and preference. Sometimes some incisions are made to stay away from previous abdominal surgical work. ...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
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