View clinical trials related to Stroke.
Filter by:The purpose of this study is to determine whether injections of Botulinum toxin type A into muscles of the upper limb are effective in treating spasticity in patients after stroke.
This purpose of this study is to determine the effect of different levels of feedback on participation in a home exercise regimen and the amount of walking performed by patients recently discharged from the acute rehabilitation setting.
All experimental group patients of 100 patients accept a treatment course stem cell transplantation, including one time stem cell transplantation through intravenous injection way at the 10-21th day of cerebral hemorrhage, and the 7—14th day of cerebral infarction incidence; the second time transplantation through lumbar puncture way at the 7th day after the First time transplantation. The control group gives injection through intravenous and lumbar puncture ways separately in the corresponding time, but the transplantation matter is physiological saline not the stem cell.
This is a pilot study of hydroxyurea versus placebo to reduce central nervous system complications (abnormally fast blood flow to the brain, silent cerebral infarct or stroke) in young children with sickle cell disease. The investigators plan to identify children 12 to 48 months old without central nervous system complications and randomly assign 20 to treatment with hydroxyurea and 20 to treatment with placebo for 36 months. Neither the study doctors nor the participants will know which treatment they are receiving.
Ischemic stroke (IS) causes high mortality and severe disability. To improve outcome it's very important to choose the right way of the management of the patient and an appropriate drugs. There is a large number of the so-called neuroprotective drugs, which were effective in laboratory, but didn't show positive results in clinical studies with using traditional clinical scales scores as a primary outcome measures. Specialists suggest, that the investigators could receive better results if the investigators change design of the studies, particularly if the investigators select more precise and sensitive method of assessment. Aim of this study: to determine the role of navigated brain stimulation (NBS) for evaluation of the changes in the motor centers and motor tracts after administration of different cerebroprotective drugs. (The substances won't be compared to each other).
Stroke contributes significantly to the incidence of disabilities, with upper limb (UL) motor impairment being especially prevalent. Animal studies suggest that post-stroke motor recovery is largely attributable to adaptive plasticity in brain motor areas. While some environmental training factors contributing to plastic mechanisms have been identified in animals, translation of this knowledge to the clinical setting is insufficient. Optimal recovery may be related to both external (e.g., feedback type) and internal factors (e.g., cognitive ability, motivation). Clinically feasible methods for training are needed. Use of enriched virtual environments (VEs) may provide a way to address these needs. Outcome measures that best reflect recovery need to be identified since this is an essential step to evaluate the effect of novel training programs for UL motor recovery in stroke. The research question is which clinical and kinematic outcome measures best reflect motor performance recovery after a targeted upper limb treatment intervention. Aim 1 is to compare changes in outcome measures recorded before and after an upper limb intervention in stroke subjects to motor performance in healthy subjects. Aim 2 is to determine motor performance between-group differences sample size is based on knowledge of expected outcome measure mean score differences between groups. Hypothesis. 1: Specific clinical and kinematic outcome measures will be sensitive to within-group (pre-post intervention training) changes. Hypothesis. 2: Specific clinical and kinematic outcome measures will be sensitive to between-group (healthy vs. patients in enriched vs. conventional intervention groups. Sixteen chronic stroke survivors and 8 age- and sex-matched healthy controls will participate. Patients will be matched on cognitive and motor impairment levels and divided into two groups. Using an single subject (A-B-A) research design, kinematics during two pre-tests, 3 weeks apart, will be recorded for test-retest reliability. Stroke groups will practice varied upper limb reaching movements (15 45-minute sessions in 3 weeks) in environments providing different motivation/feedback levels. Pre- and post motor performance evaluations will be done with clinical tests and a Test Task with specific motor performance requirements. A Transfer Task will also be recorded. By comparing data analysis methods (3-Dimensional (3D) analysis of different markers or placements), the investigators will identify which kinematic outcome measures best reflect motor improvement in post-test and follow-up sessions (retention). The expected results are identification of two primary and two secondary outcome measures that reflect upper limb motor recovery and can distinguish between motor recovery and compensation. The results will be used to design a randomized control trial to determine the efficacy of VE-based treatment on arm motor recovery. The goal is to determine how extrinsic (environmental) and intrinsic (personal) motivational factors affect motor learning in stroke survivors with cognitive and physical impairment. Knowledge gained can also be used for rehabilitation of other neurological and orthopedic pathologies.
This is an open label single center phase II trial, evaluating the utility of 64 slice CT perfusion (CTP) in acute ischemic stroke (AIS) patients. The main aim is to determine which aspects of CTP imaging can aid in expanding the time window for thrombolysis with IV (rt-PA) in AIS patients up to 6 hours after symptom onset.
Upper limb motor control after a stroke may be improved with rehabilitation robotics at a subacute stage. The aim of this multicenter controled randomized single blind study is to define the place of rehabilitation robotics at this phase of the rehabilitation process. Both groups will realize the same time of rehabilitation. The cost benefit ratio will be compared in each group through medical assessment of improvement and definition of the costs due to the rehabilitation process.
The purpose of this prospective study in acute ischemic stroke patients is to compare alarm-to-needle time during randomly allocated periods with and without availability of a specially staffed ambulance equipped with computed tomography (CT) and point-of care diagnostics. The investigators hypothesize that compared to regular care the investigators will reduce alarm-to-needle time by a minimum of 20 minutes by implementation of the stroke emergency mobile unit.
Stroke is a disease with tremendous individual, family, and societal impact. It is the number one cause of adult disability and third leading cause of death in the United States. Between now and the year 2050, the cost of stroke in the United States will exceed 2 trillion dollars. There is a tremendous ethnic disparity with respect to stroke in the United States. Mexican Americans are much more likely to have a stroke compared with European Americans. In Mexican Americans strokes occur at younger ages, are more likely to recur and have the same severity as they do in European Americans. Mexican Americans are the overwhelming largest sub-population of Hispanic Americans, the nation's largest minority group. This proposal, a scientifically-based rigorous behavioral education intervention trial, seeks to aggressively prevent stroke, especially in Mexican Americans. Faith and family are strong components of Mexican American culture. This project works with these positive fundamental elements in order to affect stroke prevention. This project will take place in Nueces County, Texas. The project investigators have worked in this community for the past 14 years and have published extensively regarding the stroke health disparity in this stable, non-immigrant community of Mexican Americans and European Americans. We have established a strong partnership with the Catholic Diocese of Corpus Christi and assembled a team with tremendous experience at successful health behavior intervention research. Together, a proposal has been crafted that will directly speak to aggressive stroke risk factor reduction in Mexican Americans and European Americans in this representative United States community. The significance of such research is tremendous. As the Mexican American population grows and ages, the stroke impact will be felt with greater and greater intensity. Now is the time to develop aggressive, scientifically tested interventions to limit the burden of this disease on this important segment of the United States population, and to reduce the costs of this disease to the country as a whole, in keeping with the Government Performance and Results Act (GPRA) goal to "identify culturally appropriate, effective stroke prevention programs for nationwide implementation in minority communities" by FY2010.