View clinical trials related to Fistula.
Filter by:A very common complication following distal pancreatectomy is leakage from the pancreas, or what is called a pancreatic fistula. We hypothesize that operative drains which create suction may contribute to the development of leakage from the pancreas. This study evaluates the effect of using non-suctioning drains to prevent the development of this complication.
This project will examine if enhancing Nitric Oxide (NO) bioavailability increases the rates of arteriovenous fistula (AVF) maturation in end stage renal disease patients requiring vascular access for hemodialysis. To enhance NO bioavailability the study team will utilize a program of forearm exercise training, application of nitroglycerin ointment or both. Goals of this study are (A) to measure if recruited subjects can tolerate the intervention protocols, and determine if dependent variable measures, including surgery outcome, and measurement of physiologic and biologic markers, can be obtained; (B) To measure subject compliance and adherence rates for each of the intervention arms and testing visits; (C) To examine which intervention or combination of interventions demonstrates the strongest preliminary effects in order to estimate power for a pivotal intent to treat trial; and (D) explore group differences in clinical vascular markers and biologic markers in vein tissue.
The objective of this study is to evaluate the safety and effectiveness of the use of intravascular paclitaxel, in addition to standard therapy, for the treatment of arteriovenous dialysis access fistula stenosis. A fistulogram will be performed in standard fashion. The diagnostic component will include evaluation of the inflow artery, arterial anastomosis and full length of the fistula vein or graft, plus venous return up to the heart. The location, vessel size, lesion diameter and percent stenosis for each lesion will be recorded. Enrollment and randomization will occur at this point. All patients will then receive standard therapy for their stenosis. This will include intravenous heparin administered in a standard dose of 70 units/kg. Lesions that respond poorly to angioplasty (>30% residual stenosis after angioplasty treatment with 2 inflations) will be stented. Stent selection will be based on clinical setting. Initial stent treatment will utilize an uncovered nitinol stent. Treatment of in-stent restenosis will include initial balloon angioplasty, and use of a covered stent (Viabahn, GORE, or Fluency, Bard). Documentation of location and type of treatment for each lesion treated will be recorded. Once standard treatment is completed, the operating surgeon will be informed of the patient randomization: treatment (paclitaxel) or control. For subjects assigned to treatment, Paclitaxel solution treatment of each lesion encountered from proximal to distal will be attempted until the 20 mg Paclitaxel dose limit is met. A TAPAS infusion catheter will be used for all paclitaxel dose administrations. The TAPAS infusion catheter will be positioned to reduce the presence of branches which permit the loss of paclitaxel from the treatment zone. After the full outflow vein segment is treated, the fistulogram is completed in the standard fashion. Prior to removal of the sheath, a final angiographic study of all areas treated is performed to document patency and lesion appearance. For the control group, instead of paclitaxel administration, a sham treatment period of 10 minutes is allowed to elapse followed by the performance of the final completion angiogram. Any additional lesions identified with this study are then treated appropriately following standard technique. All patients will follow the same follow up evaluation schedule.
The purpose of this study is to determine whether handsewn anastomosis versus clipped technique is associated with more complications, fistula failures, surgical cost and surgical time.
The investigators hypothesis that aneurysms and stenoses will be decreased if the direction of inserted arterial needle were same as the direction of blood flow, when compared to the opposite direction puncture.
This is an open follow-up clinical trial to evaluate a sustained efficacy and safety of ANTG-ASC injection for 4 months (6 months after final dose injection) after Phase II clinical trial.
This is a prospective clinical study on the efficacy of Gore-BioA fistula plug in high transsphincteric fistulas. Follow-up time is six months
The investigators plan to perform a prospective randomized, head-to-head trial to test the hypothesis that the addition of Braun enteroenterostomy to standard pancreaticoduodenectomy (PD) reconstruction can decrease the rates of Postoperative Pancreatic Fistula (POPF) and/or Delayed Gastric Emptying (DGE).
The primary objective of this study is to evaluate the effect of topically applied heparin in comparison to placebo on suitability of newly constructed primary arteriovenous fistulas in patients planned for haemodialysis at 7th week (± 1 week) after first study drug administration.
The purpose of this study is to determine safety and efficacy of eASCs (expanded adult stem cells) for treatment of complex perianal fistulas in patients with Crohn's disease.