Found 65,447 clinical trials
Studies of Blood Flow to the Brain During Thought
The purpose of this study is to use brain imaging technology to measure changes in blood flow to areas in the brain as individuals perform intellectual tasks. This study will use functional magnetic resonance imaging (fMRI) to examine blood flow to areas of the brain as participants engage in tasks …
Hotspots, Households and Hospitals: Enhanced Drug-resistant Tuberculosis Case Finding in Namibia
Poor case management, pharmacokinetic variability and on-going transmission have fostered the drug-resistant tuberculosis (DR-TB) epidemic leading to a global estimated number of >500,000 new multidrug resistant (MDR) TB cases per year, of which roughly 10% are extensively drug resistant (XDR). Namibia is a high TB burden country with an incidence …
Wise Practice of Chinese Hemodialysis (WISHES)
The investigators are registering all HD patients at recruited hospitals and developing a HD database in China. Patients will be follow-up every 3 months, and both baseline and follow-up information will be entered into the registration system. The patient survival, technical survival, patency rate of access, quality of life and …
Prospective Registry of Elderly ESUS With PFO
Patent foramen ovale (PFO) is associated with an increased risk of stroke. PFO-closure was effective in preventing stroke in young stroke patients less than age 60 presented as an embolic stroke of undetermined source (ESUS). However, the benefit of PFO-closure in elderly ESUS patients is not clear. The investigators designed …
Effects of Propofol on Brain Function in Patients With Parkinson's Disease
Propofol is a short-acting general anesthetic drug commonly used in clinical practice, with rapid clinical onset of action, amnesic, anxiolytic, antiepileptic, and muscle relaxant effects. The lack of natural antioxidants in patients with Parkinson's disease and propofol's ability to protect the brain by inhibiting oxidative stress, its pharmacokinetic and pharmacodynamic …
Development and Validation of a Novel Eye-Tracking Software-based Platform to Extract Oculometric Measures
This is an observational prospective study in a cohort of healthy subjects who are enrolled using convenience and snowballing sampling. The aims of the study is to demonstrate the efficacy of using NeuraLight system to capture oculometric data from healthy participants and to validate the data capture of NeuraLight oculometric …
Lyon Uveitis Study
Uveitis or inflammation of the uveal tract results from a heterogeneous collection of disorders of varying etiologies and pathogenic mechanisms. Uveitis is relatively frequent in industrial countries with an estimation of 115 cases for 100 000 persons and is associated with a blindness risk of 10%. Causes of uveitis can …
The Radiation Oncology Registry and Biosample Repository
The goal of this study is two-fold: to establish a tissue banking respository (defined as blood, urine, soft tissue, tumor specimen, and normal tissue from areas surrounding tumor specimens), and to prospectively assess health related quality of life (QOL) over time in patients with a pathologically confirmed diagnosis of neoplasia …
Detection and Characterization of Infections and Infection Susceptibility
This screening study will examine the causes of immune disorders affecting white blood cells, which defend against infections and will try to develop better means of diagnosis and treatment of these immune disorders. This is a 2 visit screening study and patients determined to be of interest for additional study …
Facial Analysis to Classify Difficult Intubation
The aim of this project is to develop a computer algorithm that can accurately predict how easy or difficult it is to intubate a patient based upon digital photographs from three different perspectives. Such an application can provide a consistent, quantitative measure of intubation difficulty by analyzing facial features in …
