View clinical trials related to Stroke.
Filter by:This study is a non-randomized, Phase 2 clinical trial designed to assess optical cerebral blood flow (CBF) response to bolus normal saline. Subjects will have had an ischemic stroke within 96 hours of enrollment. The study intervention will be a one hour monitoring session. There will be a 15 minute baseline measurement period, followed by intravenous administration of 500cc of 0.9% NaCl over 30 minutes, and finally 15 minutes of monitoring post-bolus. All study measurements will cease after 1 hour. Subjects will be followed during their hospitalization for 7 days or until discharge, whichever is sooner, to monitor for adverse events and to collect clinical information.
Hemiparesis, strictly defined as (muscular) weakness affecting one side of the body, is seen in three-quarters of individuals following stroke. Weakness in this population results from both neural and muscular factors which include, respectively, the ability to activate skeletal muscle as well as the force generating capacity of the muscle. The overall goal is to improve walking in persons post-stroke by training subjects with an intervention that specifically targets existing neural and muscular impairments, thereby facilitating locomotor recovery.
The purpose of this study is to evaluate whether transcranial direct current stimulation of the cerebral swallow motor cortex in addition to standard care can enhance recovery of swallow function in acute dysphagic stroke patients compared to sham treatment plus standard care.
The aim of the study is to investigate whether the combination of bihemispheric ("dual") transcranial direct current stimulation (tDCS) and motor training on 5 consecutive days facilitates motor recovery in chronic stroke. Results will be compared to a matched group of patients undergoing anodal tDCS as well as a control group receiving sham tDCS. Functional and structural magnetic resonance imaging (MRI) before/after the intervention and during a 3 month follow-up will help investigating neural correlates of expected changes in motor function of the affected upper extremity.
Our study aimed to examine a possible association between Restless legs syndrome and cerebrovascular disease, by examining patients during hospitalization for acute stroke or transient ischemic attack, in a matched case-control design.
The objective of this study is to determine the impact of vibratory feedback on the quality and intensity of a common motor rehabilitation task of the upper-arm (hand-to-mouth) in stroke patients. For that purpose the investigators use the SWORD system that combines 3D motion quantification wearable sensors and a vibratory module. The investigators hypothesize that vibratory stimuli during a motor rehabilitation task increase significantly the number of correct movements performed per unit of time. The design of the study is a cross-over randomized clinical trial. With the SWORD system in place each patient will perform the hand-to-mouth task twice (with vibratory feedback and without it), the order being random. The number of correct movements and other motor outcomes will be assessed continuously under both conditions.
Problems with attention are a common and debilitating consequence of brain injury. Studies show that poor attention is the number one predictor of poor cognitive functioning one year post-injury. This is due to the fact that attention is a necessary component of more complex cognitive functions such as learning & memory, multi-tasking and problem solving. In many cases, individuals may exhibit problems with spatial attention known as 'hemi-spatial neglect syndrome' or simply 'neglect'. Many studies now show that the processing machinery of the brain is plastic and remodeled throughout life by learning and experience, enabling the strengthening of cognitive skills or abilities. Research has shown that brief, daily computerized cognitive training that is sufficiently challenging, goal-directed and adaptive enables intact brain structures to restore balance in attention and compensate for disruptions in cognitive functioning. The study aims to understand how our computer program can affect cognition and attention in those with acquired brain injury.
Stroke patients who have little or no voluntary movement in the hand on the more affected side of their body more than one year after stroke have few treatment options. This project proposes to test the efficacy of a form of Constraint-Induced Movement therapy designed for patients with such severe impairment in conjunction with an agent, fluoxetine, which has been shown in some studies to enhance brain neuroplasticity in response to training. Constraint-Induced Movement therapy, which is abbreviated CIMT, is a form of physical rehabilitation based on basic research in neuroscience and behavioral science. If the project is successful, an efficacious, evidence-based therapy will become available to stroke patients for what is now a largely untreated condition
Force generation and force level control are important neuromuscular control mechanism for successful execution of movement for our daily activities. Impaired force level control is a major deficit of motor control in people with stroke. Electromyographic biofeedback (EMG biofeedback) has been suggested by researchers and clinicians to be a useful and effective tool for enhancing control of force level during motor skill learning for people with stroke. Based on the concept of motor-skill learning, practice with variable force levels may be more effective than practice with a constant force level to enhance movement performance. The EMG biofeedback provides a suitable tool for such practice of force level control and hence for motor skill learning. However, research literatures thus far have yet to provide convincing evidences to support this claim. Neural imaging studies have shown corresponding brain reorganization and neural plasticity following physical practice of movement skills in people with stroke. It is curious whether EMG biofeedback augmented physical practice of motor skills enhances brain reorganization. Using brain mapping techniques, in particular, the transcranial magnetic stimulation (TMS), we could investigate neural plasticity accompanying motor function changes induced by physical training, and hence may help to develop safer and more effective training parameters. The purpose of this study is to examine the effects of variable practiced EMG biofeedback training emphasized on force level control of the ankle muscle on balance and gait performance and the corresponding changes of corticospinal excitability using TMS in people with chronic stroke.
The ACP device will be clinically evaluated through a prospective, open-label, nonrandomized, multi-center post market clinical study.