There are about 11304 clinical studies being (or have been) conducted in Denmark. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
This study aims to investigate the value of dual time point PET/CT in lymphoma. Since FDG uptake is linked to glucose metabolism, PET imaging is also used to detect suspected sites for infectious and inflammatory disorders. In a clinical setting, it is a challenge to distinguish between FDG uptake in benign and malignant lesions and this gives rise to a considerable quantity of false positive results and decreased positive predictive values. Performing FDG-PET imaging sixty minutes after injection is common practice in the staging and surveillance of lymphoma but this procedure may not be optimal, especially not in settings where benign inflammatory lesions are of clinical concern. In an attempt to find an alternative method for this discrimination, dual time point FDG-PET was introduced. This technique has shown itself to be a potentially promising method in FDG-PET imaging for distinguishing between malignant and benign lesions using SUV values. The reason for the different FDG uptake patterns between inflammatory and malignant lesions is unclear. Several factors may contribute to this phenomenon on a cellular basis. It has been shown that cancer cells exhibit increased numbers of glucose transporter and low level of glucose-6-phosphatase. Varying levels between different cancer cell types may explain the different FDG uptake curves. Because various cell types exhibit varying rates of FDG uptake we believe that kinetic investigation may prove to be of value in understanding different types of lymphoma and identifying how to perform precise imaging for staging and surveillance.
The investigators want to compare the use of MRI with PET/CT preformed after 1 hour and 3 hours in preoperative assessment of resectability. The investigators' hypothesis is that dual time PET/CT performed at 60 and 180 minutes will increase the diagnostic accuracy of conventional PET (performed at 60 minutes) in preoperative assessment of resectability. Further more the investigators suggest that the GLUT/G6Pase index correlates to the SUVmax. And retention index (RI, see Methods - PET protocol) is a prognostic marker in ovarian cancer.
Recently, a clinical trial showed that the use of lumbar drains compared to ventricular drain in patients suffering from subarachnoid hemorrhage resulted in less delayed ischemic neurological deficits but failed to show a clinical benefit after 6 months. The underlying assumption was, that the cerebrospinal fluid (CSF) obtained from lumbar drains has a higher concentration of blood than CSF from lumbar drains. The investigators decided to test this assumption. In this study, the investigators will randomize patients to either placement of a ventricular or a lumbar drain and analyze the CSF drainage on a daily basis.
The risk for colon cancer in patients with longstanding ulcerative colitis exceeding the rectum is increased and therefore patients should be enrolled in a surveillance program eight years after the diagnosis. Until today, official international guidelines for endoscopic screening in patients with ulcerative colitis advise to take 4 biopsies every 10 centimeters (with a minimum of 32) and of each suspected visible lesion. These guidelines are merely based on consensus during expert opinion meetings rather than evidence based. Recent studies have shown that chromo-endoscopy guided biopsies significantly reduced the number of biopsies for each procedure and detected more neoplastic lesions. Chromo-endoscopy is therefore considered the gold standard in this study in which we want to compare it to the performance and efficiency of new endoscopic imaging techniques. Narrow-Band Imaging (NBI) selectively uses certain wavelengths of the visible light leading to a shift in the excitation spectrum towards blue light. The first studies with NBI showed that the additional value of NBI in the detection of neoplastic lesions is comparable to chromo-endoscopy, but time saving and easier to perform. The Fujinon Intelligent Chromo-Endoscopy (FICE) system uses a similar theoretical principal as NBI but this is achieved via the use of post hoc computer algorithms, applying different filters to the stored endoscopic images and enabling a theoretically endless number of combinations of filters that can be used. The Pentax I-scan system also allows post hoc modification of the images. On the one hand, surface enhancement enables to better highlight mucosal changes. Spectral modification allows to apply different modes in analogy with to FICE system. These new imaging techniques have a theoretical advantage which is extendedly used for sales purposes but has however so far not been proven in ulcerative colitis patients. We want to test their clinical use in the screening for neoplastic lesions in patients with long standing ulcerative colitis.
Diabetic foot ulcers are deep wounds that occur as a result of nerve damage in the feet (peripheral neuropathy). Amputation is a common consequence of diabetic foot ulcers; approximately 85% of all diabetes-related amputations are caused by foot ulcers. The ulcer treatment is extensive, resource demanding and highly specialized and necessitates involvement of patient, hospital and local in-home care personnel. The 3D photo optic camera project aims at a much more efficient and precise method for diagnosis and treatment of foot ulcers. The Department of Endocrinology and the section for LEAN and Innovation at Odense University Hospital has developed a prototype for a 3D camera that takes pictures and measurements of the ulcer that can provide the basis for correct diagnosis and treatment of the ulcer. The camera was developed in close cooperation with TECCLUSTER A/S, Svendborg Municipality, Team Online and ComMed.
The purpose of this observational study is to evaluate the baroreceptor function in relation to surgical inflammation and orthostatic intolerance after elective hip arthroplasty. The main hypothesis is that baroreceptor function is attenuated after surgery and related to surgical inflammation.
Early Closure of Temporary Loop Ileostomy After Rectal Resection for cancer
Non-Hodgkin lymphoma (NHL) is one of the more frequent cancers in the western world with approx. 800 new cases annually in Denmark. Diffuse large B-cell lymphoma (DLBCL) in Denmark accounts for almost 40% of newly diagnosed NHL cases. Treatment with the combination of chemotherapy and monoclonal antibodies has significantly improved prognosis over the past decade, but a large proportion of patients with DLBCL will continue to relapse with our current treatment options. Therefore, there is a need for reliable methods for detection of treatment response as early as possible in the treatment course in order to identify patients who respond poorly to standard treatment and potentially would benefit from a change in treatment strategy. This has still not been established, but a valid early marker is required in order to allow randomized trials of treatment stratified by early response. One of the most promising applications of PET is the metabolic assessment of the early response of cancer treatment. This study is a national prospective multicenter study emanating from the Danish Lymphoma Group (DLG). Patients are scanned after each of the early 4 cycles of chemo therapy. The aim is to establish the correct timing of response evaluation. Additionally, the investigators wish to investigate the optimal qualitative and quantitative method of response assessment in order to predict post-therapeutic remission and long-term prognosis.This study will contribute to interim-PET being implemented in the most optimal way in daily clinical practice.
The purpose of this study is to investigate if a computerised decision-support tool used in general practice, can reduce the frequency of peptic ulcer bleeding related to the use of NSAIDs (Non-Steroidal-antiinflammatory-drug) and ASA( Acetylsalicylic acid) . On the basis of "The Danish general medical database" it is possible to develope a computerised decision-support tool, which enables the general practitioner (GP) in a "pop-up" window to get information on each patients risk-factors, when prescribing NSAID and aspirin to a patient at risk. This will give the general practitioner the oppurtunity to choose a different type of preparation or prescribe ulcer-preventive medicine at the same time. The decision-support tool will be tested in a randomized trial among general practitioners. The aim is to reduce the occurence of peptic ulcer bleeding. The expected outcome is a reduction in half of the total numbers of peptic ulcers.
The investigators want to measure the degradation of the endothelial glycocalyx before and after clamping the aorta, in patients operated for a abdominal aortic aneurism.