View clinical trials related to Fistula.
Filter by:Our study seeks to define the effect of each component of the distal revascularization interval ligation (DRIL) procedure on the in vivo distal blood pressure of patients with ischemic steal, and to determine whether the interval ligation component of the DRIL procedure is necessary or not.
Spinal arteriovenous fistulas (AVFs) and arteriovenous malformations (AVMs) are complex neurosurgical lesions that are very challenging to manage. Spinal vascular malformations account for 3%-4% of all intradural spinal cord mass lesions. Over the last few decades our understanding of these lesions has dramatically increased thanks to neuroimaging technology (e.g. spinal angiography and indocyanine green angiography). Various treatment modalities including conservative observation, endovascular embolization, microsurgical resection, radiation therapy, and combined therapies have been reported. The treatment for these AVMs and AVFs depends on their location, the type of malformation, the area of the spine involved, and the condition of the patient at the time of treatment. Due to the rarity of these spinal vascular lesions, reports of their management and outcomes have been limited to small series and case reports. And the rates of obliteration and outcomes are not satisfactory, especially the spinal AVMs. Spinal vascular lesions are rare but represent a formidable challenge for the treating neurosurgeon.The purpose of this study is to establish multimodality treatment mode and evaluate the anatomical cure rate and functional preservation rate.
Bronchopleural fistula (BF), an abnormal passage or communication between a bronchus and another part of the body, may develop when there are penetrating wounds of the thorax and after lung surgery. Without effective therapy, treatment of BF is a challenge, with a high rate of mortality and teratogenicity. The investigators will conduct endoscopic injection of umbilical cord mesenchymal stem cells to fistula, observe the recovery of bronchopleural fistula and systemic reactions, to investigate the application of umbilical cord mesenchymal stem cells in the treatment of bronchopleural fistula.
Bronchial fistula (BF), an abnormal passage or communication between a bronchus and another part of the body, may develop when there are penetrating wounds of the thorax and after lung surgery. Without effective therapy, treatment of BF is a challenge, with a high rate of mortality and teratogenicity. The investigators will conduct endoscopic injection of human amniotic epithelial cells to fistula, observe the recovery of bronchial fistula and systemic reactions, to investigate the application of human amniotic epithelial cells in the treatment of bronchial fistula.
- Objective: To analyze the effect of neuromuscular electrostimulation in the maturation of radiocephalic arteriovenous fistula (RC-AVF) patients with chronic kidney disease (CKD) stage 5-5D - Design: Clinical Trial with medical devices, 18-month, single-center, within the hospital setting. - Disease or disorder study: vascular Access maturation. - Population: Patients with CKD stage 5-5D at the research center. - Project duration: 78 weeks - Methodology: - Patients with CKD stages 5-5D that has undergone a native AV in service stations to give their informed consent and meeting the inclusion criteria will be included. - At baseline two study groups were established: - Group 1: neuromuscular electrostimulation - Group 2: isometric exercises
The study consist of a retrospective analysis of the etiologies, investigations and outcomes of patients presenting between 2005 to 2010 with hemoptysis in a North-American Tertiary center.
DeVA is a single blinded, prospective, multicentre RCT designed to determine the safety and effectiveness of a drug eluting angioplasty balloon compared with a standard angioplasty balloon in patients with symptomatic native AV fistula stenosis.
Use of arteriovenous fistula for IV drug administration is controversial and often prohibited by nephrologists. However, we have been using this method in our department for years now in order to keep the patients 'veins for other fistulas in the future. The aim of this study is to evaluate our practice and maybe provide a justification for a larger multi-center study given the importance of this subject in patients with chronic renal failure.
Pharyngocutaneous fistula (PCF) is the most commonly reported postoperative complication in total laryngectomy patients. PCF significantly increases morbidity, length of hospitalization, and cost of care, in addition to delaying the beginning of adjuvant therapy. The reported incidence of PCF ranges from 3% to 65%.The increased use of radiation in the primary management of laryngeal carcinoma has resulted in an increase in the PCF formation after salvage laryngectomy (STL). Previously reported risk factors for PCF development include preoperative radiotherapy, tumor stage, concomitant neck dissection, prior need for tracheotomy, hypoalbuminemia and anemia. Among surgical options, the pectoralis major myofascial flap has been proposed to cover the pharyngeal closure, to interpose non-irradiated tissue between the neopharynx and the skin during STL. Nonetheless, the efficacy of this approach is not fully established.Epidural anesthesia improves the blood supply due to its vasodilating effect. The aim of the study is to evaluate the effect of perioperative cervical epidural analgesia on the occurrence of pharyngocutaneous fistula following salvage laryngectomy and reconstruction with pectoralis major myocutaneous flap.
This randomized controlled trial (RCT) is multi-center, parallel-arm, and open label. It will test the feasibility and safety of randomizing elderly patients with end-stage kidney failure starting hemodialysis with a tunneled/non-tunneled catheter to one of the following vascular access strategies: (a) attempt at fistula creation (intervention), or (b) continued use of a catheter (comparator). A total number of 100 participants will be enrolled in vanguard phase of the RCT. The rationale for this trial includes: (1) the importance of the intervention question related to the choice of vascular access for patients treated with hemodialysis; (2) lack of evidence from clinical trials for decision-making in this area (only observational studies are available); (3) existing studies which suggest that fistula use is associated with better patient outcomes are very prone to selection bias; (4) need for a clinical trial comparing the impact of the two most frequently chosen strategies for vascular access (catheter and fistula) in the hemodialysis population; and (5) a feasible and safe trial design. The results obtained from this vanguard phase of the RCT will determine the feasibility and safety of conducting a large RCT, which will be powered for the primary outcome of days spent in hospital.