View clinical trials related to Fistula.
Filter by:Patients whose kidneys have failed need to receive dialysis treatment, most commonly with a dialysis machine. In order to be connected to the machine an operation is often performed to join an artery to a vein in the arm. This forms what is known as an arteriovenous fistula. The fistula causes an increase in the flow of blood through the vein and the vein reacts to this by becoming bigger and thicker, making it easier to connect the patient to the machine. The success rate for the operation is relatively low and only approximately 65 from every 100 operations is still working after a year. It is thought that one factor that may cause problems with the fistula is the ability of the vein to stretch in response to increased blood flow. Previous research has shown that veins in kidney failure patients look different to those of people whose kidneys are working when viewed under a microscope. The investigators aim to study the structure of the vein that is used in making fistulas with a microscope and also to test it in an engineering laboratory to see how much it will stretch. The investigators hope that gaining information about the structure of the vein and its ability to stretch will help determine what it is about the vein that affects how well it works as part of a fistula. This information may help surgeons select the best possible vein in a given patient to give the best chance of a working fistula in the future.
This study comprises a prospective study of 40 patients with transphincteric anal fistula. The patients were classified into two groups: Group I: Fistulectomy, closure of internal sphincter and rectal advancement flap includes mucosa, submucosa, and circular muscle layer sutured 1cm below the level of internal opening. Group II: The same as group one but the flap includes only mucosa and submucosa.
The primary objective of this study is to evaluate the effectives of enteral nutrition in the treatment of pancreatic fistulas. The ratio of pancreatic fistula closure after 30 days is selected as the primary outcome measure with the null hypothesis assuming that enteral nutrition provides better results than parenteral nutrition as far as the closure ratio, time to closure and treatment-related complications are concerned.
The purpose of this study is to determine whether the outcome of anal fistula repair with a collagen plug is comparable to that of repair by a mucosal advancement flap.
The purpose of this extension is to investigate and confirm the long-term (6 months) safety and efficacy of the preceding FATT-1 trial [ClinicalTrials.gov identifier: NTC00475410], which studied patients with perianal fistula treated having received adipose-derived adult stem cell (ASC)and/or fibrin glue.
Purpose: This randomized study assesses the effects of antibiotics on the formation of fistulae after drainage of anorectal abscesses. Methods: Patients who underwent abscess drainage in 3 major colorectal units between September 2005 and January 2008 were included. Previous anorectal surgery history, immunecompromised states, pregnancy, inflammatory bowel disease, antibiotic usage prior to surgery and the presence of an anal fistulae at the time of surgery were the exclusion criteria. Patients were randomized and given either placebo or amoxicillin-clavulanic acid combination treatment for 10 days. Patients were followed one year for perianal fistulae formation.
Up to date, a sure cure for Crohn's fistula does not known and the fistula recurrence rate is high. On 15 October 2008, orphan designation was granted by Korea FDA for human adipose-derived stem cell (ADIPOPLUS) for the treatment of Crohn's fistula. In this study, patients are given injection of ADIPOPLUS in fistula site and followed for 8 weeks to evaluate the safety and efficacy.
Dialysis patients have their blood filtered by a machine as their kidneys no longer work. To get blood in and out of these patients it is possible to perform a surgical procedure to increase to size and durability of a vein in the arm to allow repeated needle insertion. This enlarged vein is called a fistula. There is some evidence that ultrasound scanning the blood vessels in the arm before surgery can improve the chances of a successful procedure. The investigators aim to test whether scanning all patients is better than scanning only those who are difficult to assess by physical examination alone.
The purpose of this study is to determine safety and efficacy of allogenic eASCs (expanded adult stem cells) for the treatment of recto-vaginal fistula in patients with Crohn´s disease.
Up to date, a sure cure for Crohn's fistula has not known and the fistula recurrence rate is high. On 15 October 2008, orphan drug designation was granted by Korea FDA to Anterogen Co. Ltd., for human adipose-derived stem cell. In this study, patients are given injection of ADIPOPLUS in fistula site and followed for 8 weeks to test the safety and efficacy.