View clinical trials related to Ulcer.
Filter by:Buruli ulcer is a neglected tropical disease caused by infection with Mycobacterium ulcerans (Mu) in rural parts of West Africa. It causes large skin ulcers mainly in children aged 5 to 15 years. Access to treatment is limited and many cases present late. There have been major advances in understanding the mechanism of disease together with improved diagnosis and management. The aim of the proposed studies is to identify markers predictive of a rapid response to antibiotic treatment and to investigate the pathogenesis of paradoxical reactions and oedematous lesions in Mu disease. Infection with Mu results in a nodule under the skin which enlarges and breaks down to form an ulcer. This is because Mu produces a toxin that spreads outwards and damages subcutaneous tissue. In recent years it has been found that antibiotic treatment for 8 weeks with daily tablets and intramuscular injections heals ulcers. This is unpleasant and it would be better if the treatment could be shortened. Our previous studies suggest this may be possible. Therefore a wide range of tests will be investigated in order to identify markers for people in whom the infection is at an early stage with low numbers of Mu bacteria and low levels of toxin in the skin. During antibiotic treatment the rate of healing will be measured to find out which markers are the most reliable. In some patients new areas of inflammation develop despite treatment and this is called a paradoxical reaction. The immune response to Mu will be investigated serially during antibiotic treatment to investigate the cause of paradoxical reactions. About 15% of patients have oedematous disease, the most severe form of Buruli ulcer. We will study the amount of Mu toxin produced by the strain of Mu cultured from patients with this form of the disease. Hypothesis - Buruli ulcer patients that heal rapidly/slowly or develop paradoxical reactions with treatment will have associated predictive viability or serum biomarkers. - Buruli ulcer patients with oedematous disease are associated with larger amounts of mycolactone and viable organisms
The purpose of the investigators study is to investigate the factors associated with rebleeding in patients with peptic ulcer bleeding.
Ulcerative colitis represents a chronic condition occurring in relapsing and remitting fashion with uncertain outcome and requires lifelong treatment with considerable side effects. Diagnostic methods currently in use, clinical (endoscopy), imaging (CT, MR) or laboratory (C - reactive protein, fecal calprotectin) give an insight into disease activity but are possibly associated with significant discomfort for the patient and / or increased risk of irradiation and potential allergic reactions on contrast agents. For that reason there is a need for a noninvasive, biologically inert method for evaluation of disease activity in inflammatory bowel disease (IBD). Thermography possesses most of these characteristics. The aim of this study is to find potential link between pathological thermographic signs and endoscopic findings, serum C reactive protein (CRP) and calprotectin in the stool of patients with active and extensive ulcerative colitis.
The purpose of this study is to assess the safety and efficacy of switching from Remicade to the biosimilar treatment Remsima in patients with rheumatoid arthritis, spondyloarthritis, psoriatic arthritis, ulcerative colitis, Crohn's disease and chronic plaque psoriasis
Epidermal grafts are believed to promote healing by two mechanisms: graft take and the promotion of wound healing through the delivery of growth factors and the essential elements of tissue repair and wound healing.28 This study is intended to establish the superior effectiveness of epidermal grafting and multi-layer compression over that of multi-layer compression alone, in the treatment of venous leg ulcers. Millions of Americans are afflicted with painful, open, draining sores on their lower extremities. These sores are referred to as venous leg ulcerations (VLUs). Under the best of circumstances these ulcers require weeks or months to heal. Not uncommonly wound care specialists see patients who have suffered for years or faced amputation of the limb as their only option to alleviate the pain. Standard of care will result in healing in 50% of venous leg ulcers in 12 weeks. However, roughly half of patients suffering from venous ulcers will require advanced therapy. Epidermal grafting has been a reconstructive option for decades; however, to date there has not been a reliable and reproducible system to harvest epidermis. The CelluTome® Harvesting System permits the harvesting of epidermal blister grafts at the patient's bedside without the need for anesthesia. The grafts can be easily transferred to the wound bed. In case studies, epidermal grafting appeared to be effective in reducing wound size and accelerating closure of venous leg ulcers.
An open multicenter trial to document the efficacy and safety of two therapeutic Extremely Low Frequency Magnetic Fields stimulation devices to promote wound healing of Diabetic Foot Ulcers.
The investigators aim to prospectively study the feasibility and clinical impact of hyperbaric oxygen therapy in acute hospitalized moderate to severe ulcerative colitis flares as an adjunct to standard medical treatment. Specifically, we will investigate the impact of hyperbaric oxygen therapy on clinical response/remission and serum and mucosal inflammatory markers. The investigators expect that hyperbaric oxygen therapy will improve patient responsiveness to steroids and avoid progression to second line therapy during hospitalization.
The purpose of this study is to determine the effect of 12 weeks of WB-EMS either applicated passive in a supine resting position or active during slight movements compared with a non-training control group on body composition, muscle strength and QoL in patients with ulcerative colitis. Our main hypothesis is that active WB-EMS application is significantly more favorable to address our primary endpoints compared with passive application. Our secondary hypothesis is that passive WB-EMS application is significantly more favorable to address our primary endpoints compared with non-training control.
The purpose of this study is to compare two different dosing regimens of phosphatidylcholine versus placebo for the induction of remission in ulcerative colitis patients non-responsive to standard mesalamine treatment.
Patients with ulcerative colitis (UC) have an increased risk for colorectal cancer (CRC) compared to the general population. Regular screening by colonoscopy is an internationally recommended cancer prevention strategy. Random sampling of the mucosa throughout the colon has been the mainstay of conventional surveillance practice to detect abnormalities, known as dysplasia which can progress to CRC. This requires multiple biopsies, to be taken and processed, a practice which is is tedious, expensive, time consuming and has a low pickup rate. Dysplasia in UC is typically flat and patchy and can be easily overlooked with standard conventional white light colonoscopy (WLC). Detection can be improved by the application of dyes which highlight more subtle abnormalities. This practice, known as chromoendoscopy (CE) is better than WLC at dysplasia detection but more time consuming for the patient and cannot guarantee that the whole colon is covered. CE has only been compared in clinical trials with standard definition endoscopy rather than the recently available high definition endoscopes with better resolution and picture. High definition (HD) endoscopy uses a high definition onitor and a high resolution CCD (charge coupled device) providing much better images than standard video endoscopy. HD colonoscopy promises therefore to provide an alternative to CE in UC surveillance without the need for the extra time and experience required for dye spraying for both endoscopists and nursing staff. The investigators plan to do a randomized trial to assess HD colonoscopy alone compared to chromoendoscopy (with HD colonoscopies) for dysplasia detection during surveillance for ulcerative colitis. There have been no trials comparing these two modalities and the investigators hope to provide evidence that the additional benefit of CE over HD colonoscopy would be marginal and therefore CE would be reserved for procedures using standard definition scopes.