There are about 6915 clinical studies being (or have been) conducted in Austria. 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.
Needle tip visualization, although fundamental to the safety and efficacy of ultrasound-guided regional anesthesia (UGRA), can be extremely challenging. This problem is most marked at steep insertion angles. Studies in patients with UGRA demonstrate that echogenic needle designs have the potential to offer improved visibility and accuracy. Our study pursues another approach. We use (for differentiation) echogenic nerve block needles with ANV®, a new SonoSite software-upgrade (Advanced Needle Visualization Technology®). We will compare UGRA with ANV® against standard UGRA without using this SonoSite software-upgrade. Patients undergoing femoral, supraclavicular or other nerve blocks as part of their routine anesthetic management are included. This work represents the first randomized controlled double blinded clinical trial of ANV® in patients undergoing UGRA. We hypothesize, that we can decrease the time without needle visualization (Loss of needle time in percentage of procedure time) during in-line regional anaesthesia. Furthermore we will record quality of visibility, duration of procedure and insertion angle of the needle.
Osteoprotegerin (OPG) is membrane bound in the immune system but can also be produced and secreted almost everywhere in the organism, so that it is mainly available in soluble form. So far, the OPG/RANKL/RANK system has been most intensively studied in bone. The binding of RANKL on its receptor RANK, which is expressed by osteoclasts, activates a number of osteoclastic cell functions. OPG also has a key function in the vascular system. Patients with coronary heart disease (CAD) have elevated OPG serum levels, probably as a sign of ischemic or inflammatory endothelial damage. Elevated OPG levels were also found in patients with advanced heart failure, whereby OPG correlated with pro BNP (brain natriuretic peptide) and was a predictor for cardiovascular morbidity and mortality. Our prospective cohort study will include 150 men (75 patients requiring surgery for CAD and a control group without coronary heart disease). The primary endpoints are the differences between the two groups in serum levels of OPG and RANKL, markers of bone metabolism (osteocalcin [OC], crosslaps [CTX], tartrate resistant acid phosphatase (TRAP5b), 25(OH) vitamin D [Vit D], 1.25(OH) vitamin D, parathormone [iPTH], endocrine parameters related to vascular damage (e.g. aldosterone, renin and cortisol) and bone mineral density. Metabolomic based biomarkers will be evaluated to explore the mechanisms behind OPG-RANKL linked CVD damage. In the patients further studies of the mRNA expression of OPG, RANKL, TRAP5b, arginine:glycine amidinotransferase (AGAT) and osteocalcin in bone (sternum sliver) and vascular wall (aorta, internal thoracic artery and the great saphenous vein) will be performed. A further study endpoint is the analysis of a causal coincidence between osteoporosis and CAD and the discrimination of possible key factors in the two entities. These will be determined by the correlation between the above-mentioned markers in serum and the expression in different vessels and in bone tissue. In addition to analysis of the degree of vascular sclerosis, the mineral content of the bone will also be analyzed in a subpopulation with quantitative backscattered electron imaging (qBEI) related to the degree of vascular sclerosis and bone mineral density. The ultimate goal of the analysis is the discrimination of the most sensitive predictive marker(s) for diagnosis and outcome of patients with CAD for the purpose of early diagnosis and primary prevention of the disease. CAD and osteoporosis are increasingly prevalent diseases that overlap. In both entities, OPG plays a role not only in pathogenesis but also as an outcome predictor. We aim to study the relevance of OPG concentration in serum but also in the vessel wall and the bone.
Enroll-HD is a longitudinal, observational, multinational study that integrates two former Huntington's disease (HD) registries-REGISTRY in Europe, and COHORT in North America and Australasia-while also expanding to include sites in Latin America. More than 30,000 participants have now enrolled into the study. With annual assessments and no end date, Enroll-HD has built a large and rich database of longitudinal clinical data and biospecimens that form the basis for studies developing tools and biomarkers for progression and prognosis, identifying clinically-relevant phenotypic characteristics, and establishing clearly defined endpoints for interventional studies. Periodic cuts of the database are now available to any interested researcher to use in their research - visit www.enroll-hd.org/for-researchers/access-data/ to learn more.
Fast Track Recovery Arthroplasty Project is supposed to analyse a new medical method to accelerate patient's remobilisation process after total knee endoprostheses. The method, called c-treatment, is a computer-controlled cryotherapy (soothing cooling therapy) at which the device measures temperature at the affected site (the operated knee in the investigators investigation) and optimizes the cooling temperature. The optimized cooling therapy is supposed to reduce swelling and postoperative pain whereby patient's postoperative mobilization can be done earlier leading to a reduction of length of hospitalization. To verify c-treatment's efficiency compared to conventional cryotherapy, patients are split in a test group and a standard group. The standard group is treated following the standard protocol at the Department of Orthopaedics Surgery Graz using cold packs (Fa. Dahlhausen, product code 93.000.00.042). Patient's in the test group receive c-treatment therapy following the study protocol. All patients are instructed to fill in standardized questionnaires to evaluate social scores and pain scores preoperative as well as postoperative. The knee's swelling and range of motion as well as blood parameters monitoring the healing process are measured following the study protocol. The comparison of these parameters between the standard and the test group is supposed to verify c-treatment's efficiency.
This study is a registry of general use of Avance Nerve Graft and is intended to evaluate the uses, response rates, and safety of Avance Nerve Graft in the real-life clinical setting. Optional addendums 1 and 2 included in the protocol are intended to establish comparative groups and focused subgroups within the registry.
The purpose of the Registry is to provide continuing evaluation and periodic reporting of safety and effectiveness of Medtronic market-released products. The Registry data is intended to benefit and support interests of patients, hospitals, clinicians, regulatory bodies, payers, and industry by streamlining the clinical surveillance process and facilitating leading edge performance assessment via the least burdensome approach.
The goal of this study is to determine the value of the new mammography technique called Digital Breast Tomosynthesis (DBT) compared to the current standard technique Digital Mammography for the early detection of Breast Cancer. DBT is able to compute a three-dimensional image of a breast from several low-dose mammographies taken from different angles while the device is moving around the breast in a circular motion. This should overcome a significant limitation of Digital Mammography arising from the masking of breast cancer in a mammography image caused by overlying normal breast tissue. This is a study conducted in several Austrian Breast Imaging Centers.
The field of patellofemoral disorders and accordant therapeutical interventions is a high turnover research field. It is important to verify the clinical outcome with appropriate measuring tools. There is evidence that the Kujala score is a reliable and widely used measuring instrument of patellofemoral disorders. Indeed, the Kujala score was already used in many studies investigating patellofemoral disorders - also in german speaking patient groups. Unfortunately, we are not aware of a validated german version of the Kujala score. Other relevant knee outcome scores were already successfully translated into german language and validated by previous investigators. So, it is the aim of our study to cross-culturally adapt and then to validate the Kujala score for use in German-speaking individuals with patellofemoral instability. It is hypothesized that the german version of the Kujala score shows: - High divergent construct validity as determined by significant differences between patients and controls (hypothesis 1) - High convergent construct validity as determined by significant correlations with other relevant scoring systems (hypothesis 2) - High reliability (hypothesis 3) - High responsiveness (hypothesis 4)
Intravitreal dyes are intended to make the surgical extraction of the Internal limiting membrane (ILM) safer and more complete. However, the search for an adequate vitaly dye is ongoing. The most commonly used vital dye is Indocyanine green (ICG), although it is not approved for intravitreal use and has been associated with ocular toxicity. The reason for its continued popularity seems to be that it stains the ILM better than the approved and less toxic alternative substances Brilliant Blue G (BBG) and Trypan blue (TB). According to anecdotal reports from surgeons, another reason for ICGs popularity may be the fact that it seems to make ILM removal easier. Ultimately, the intention of the investigators research is to identify possible modifications to existing dyes to reach improved intraoperative dye utility combined with a favorable safety profile. Protocol was amended and approved concerning additional use of basal membrane of deceased donors.
The purpose of this study is to characterize the safety and efficacy of the AeriSeal System in patients with advanced upper lobe predominant emphysema and significant collateral ventilation as determined by the Chartis System.