View clinical trials related to Fistula.
Filter by:Research question: What are the outcomes of using the Facial artery Musculomucosal (FAMM) Flap to close recurrent small and medium sized oronasal fistulae based on reverse flow on patient's satisfaction versus using the Palatal Pedicled flap? Statement of the problem: To determine whether the using the Facial artery Musculomucosal (FAMM) Flap to close recurrent small and medium sized oronasal fistulae which are difficult to manage could meet the patients satisfaction regarding both success and function versus using palatal pedicled flap
Perianal fistula(PF) is one of the most frequent disease in anorectal disease.The incidence of PF is 8,6 -10 / 100 000 . The first surgical treatment is defined by Hippocrates in PF .This surgical treatment which found by Hippocrates , involves seton insertion into the tract of fistula . Today most of surgeon still use the same technic but PF is really hard disease to treat. Recurrence rate of PF is really high and there are lots of complication about this disease. The most scary complication during the surgery or postoperatively is anal disfunction. ın PF surgical technics involves ;fistulectomy (coring out), lay open (fistulotomy), Ligation of Intersphincteric Fistula Tract, advancement flap and laser ablation of the fistula tract . The popularity of laser ablation of the fistula tract is increasing day by day.This surgical procedure is applied with the laser device which use in varicose vain ablation in vascular surgery.In this study the investigator are trying to find out the effect of steam ablation in PF on rats.
Pancreatic cancer is an aggresive type of cancer with poor mean survival rates despite improvements in chemotherapy regimens and advances in surgical techniques. Surgery is the only therapeutic option with an intend to treat. Pancreaticoduodenectomy is indicated for malignancy in the pancreatic head as well as other periampullary tumors. One of the most fatal complications after Whipple operation is postoperative pancreatic fistula as a result of pancreatojejunostomy leakage. Various risk factors for pancreatojejunostomy leakage have been proposed, while there are others less studied.
VAVASC trial is an observational multicentre study. The aim of this trial is to validate AVAS (arteriovenous vascular access stage) classification. The classification is used for determining which type of access is the most suitable for the patient on the basis of the patient´s vascular anatomy The methodology of this trial is to apply AVAS classification on patients who are indicated for creation of vascular access for hemodialysis. Data on these patients (vascular anatomy status, AVAS type, and predicted type of arterio venous access, demographic data etc.) will be than statistically analysed. Patients will then undergo creation of the selected arteriovenous access. They will be observed in terms of the access functionality. The follow up will be 1 to 3 years. The second aim of this study is to evaluate the relationship between AVAS classification and uninterrupted use of the created arterio venous access.
The aim of this study is to assess the effectiveness and suitability of the tight (cutting) seton as a surgical treatment of high anal fistula combined with partial fistulotomy or fistulectomy in a prospective study.
Patients with end-stage renal disease require permanent vascular access to enable safe and effective hemodialysis. An arteriovenous fistula (AVF), where a vein is mobilized and connected to an artery in the arm, is considered the gold standard and first choice for vascular access. After fistula creation, the vein is subjected to high pressure and flow, and undergoes remodeling. This includes the possibility of significant dilatation and intimal hyperplasia. Normal AVF flow required for effective dialysis is around 0.6 liters/min or 0.4-0.8 liters/min. However, in at least 20% of patients, excessive remodeling and dilatation of the fistula result in a high flow AVF with >2 liters/min. High flow fistulas significantly increase the risk for the development of high output cardiac failure, skin breakdown, bleeding, hand ischemia, and other systemic complications. In cases of high flow AVF, venous reconstruction procedures, banding and/or plication, are often required to limit venous diameter and flow. The longevity of this procedure is limited as the reconstructed segment remodels and re-dilates due to ongoing arterial pressure. Banding and plication are both procedures that are designed to increase resistance to flow. Banding is performed by wrapping a segment of polytetrafluoroethylene (PTFE) around the outflow tract of the fistula, or by placing a suture around the fistula near the arterial anastomotic area to create a narrowing. Fistula plication involves narrowing of a short segment of the proximal venous outflow tract, usually accomplished by suturing or stapling the fistula for 2-6 cm. One of the notable systemic effects of a hemodialysis AVF is an acute decrease in systemic vascular resistance with a simultaneous increase in venous return to the heart, and thus an increase of the cardiac output. Cardiac failure occurs more frequently in patients with an access flow QA>2 l/min and CPR≥20%. Another adverse systemic effect of AV fistulas is pulmonary hypertension. The increased flow volume to the heart from an AV fistula yields an increase in pulmonary pressures. This can limit pulmonary vasodilation and result in pulmonary hypertension.
This study plans to enroll 10 patients aged 13-17 years of age with refractory perianal fistulizing disease. Patients will be treated by direct injection to the fistula tract(s) with 75 million allogeneic bone marrow derived mesenchymal stem cells at baseline and again after 3 months if not completely healed.
The incidence of complex cryptoglandular anal fistula is high, it affects eminently young patients and implies an important alteration in their quality of life and high prevalence in sick leave. Its treatment remains a real challenge due to the limited efficacy of sphincter preservation techniques and the inevitable risk of faecal incontinence in those cases that require surgery. Goals: To evaluate the efficacy and safety of the injection of freshly collected autologous adipose tissue as a minimally invasive, highly reproducible alternative, without risk for the continence of the patient, and of very low cost, in the treatment of complex cryptoglandular anal fistula. Methodology: Prospective multicenter, randomized, double-blinded, parallel-group, placebo-controlled clinical trial. Randomization list for each center to ensure the balance of inter-center allocation. Patients older than 18 years with cryptoglandular anal fistula with suppuration for more than 6 weeks and less than 1 year, who have received at most: curettage and drainage placement will be included. Treatment group: injection of fresh autologous fat into the fistulous tract, after curettage and closure of the internal orifice, and after lipoaspirate fat in the abdomen and centrifugation thereof. Placebo group: curettage and closure of the internal orifice and simulated intervention in the abdomen. Evaluation: protocolized clinical history and fistula complexity score (CFS), subjective perception of its pathology, St.Marks continence score, Quality of life questionnaire (QoLAF), and endoanal 3D ultrasound, at baseline, at one week, and at 3, 6 and 12 months after the intervention. The patients and the evaluator will be blind to the treatment. Patients who cannot end up receiving treatment due to intraoperative incidents or medical decision will be excluded from the study (post randomization exclusion). In each center there will be a blind evaluator to perform the follow-ups and endoanal ultrasound.
Background: postoperative pancreatic fistula (POPF) remains the most important morbidity after pancreaticoduodenectomy (PD). There is no consensual technique for pancreatic reconstruction and many surgeons use a transanastomotic drain. Currently, the stents used are not degradable and they can cause obstruction, stricture and pancreatitis. The use of biodegradable stents that disappear a few months after the intervention could have a role in the prevention of pancreaticojejunostomy complications. Material and method: A single-center prospective randomized study was planned with patients undergoing PD. A duct-to-mucosa end-to-side anastomosis is performed for the pancreaticojejunal anastomosis and the stent is placed from the pancreatic duct to the jejunum. The primary outcome of the study is the evaluation of the presence of POPF (drainage fluid amylase value of > 5000 U/L on the first day).
Objectives: Primary - Evaluate the primary operator usability of VSI streaming software for realtime streaming of images from video capture devices to a head mounted display (Hololens 2) during Interventional Radiology procedures Secondary - Evaluate Radiographer usability of VSI streaming software. - Develop suggestions for future research studies to assess the safety and efficacy of the VSI streamer software during other Interventional radiology procedures - Evaluate the impact of VSI streaming software on room setup time, procedural time and fluoroscopy time - Assess the feasability of remote collaboration by real time image transmission between remote devices through 3D telemedicine