Active clinical trials for "Stroke"

The purpose of this multicenter study is to investigate the extra-/intra-cranial atherosclerosis distribution pattern in chinese populations with transient ischemic attack and ischemic stroke and analyze the influencing factors of atherosclerosis distribution pattern.

The purpose of this study is to determine the frequency, characteristics, and consequences of vulnerable carotid artery plaques ipsilateral to an acute ischemic stroke or TIA in the territory of the internal carotid artery.

The aim of this study is to determine the yield of 3 weeks outpatient mobile cardiac monitoring for detection of atrial fibrillation in patients with history of stroke of known cause.

The investigators retrospectively reviewed all patients with neurosurgical operations for hemorrhagic stroke (intracerebral hemorrhage) between 1999 and 2008. Research assistant then telephoned the survivors for neurological and cognitive status.

The purpose of this study is to investigate the process of acquiring a motor skill subject in post-stroke, comparing them with healthy subjects.

The purpose of this study is to determine the incidence of Fabry Disease in young stroke patients in an Israeli stroke clinic.

The Stroke Rehabilitation Assessment of Movement (STREAM) is a relatively new measurement tool, which measures specific movement deficits (impairments) caused by a stroke. The STREAM is used to evaluate recovery of voluntary movement and basic mobility following the onset of a stroke. Several important clinical measurement properties of the STREAM remain to be explored, including its ability to measure impairments and clinical change in acute rehabilitation patients in the USA. We hypothesize that the STREAM will be able to detect and quantify a statistically significant change in the motor abilities of stroke patients from admission to discharge. An additional aim of the study is to compare the STREAM with two accepted and widely used clinical measures of function and disability, the Stroke Impact Scale (SIS)and the Functional Independence Measure (FIM). By linking movement deficits that are commonly assessed by physical therapists with measures of function and disability, the impact of the movement deficits can be understood.

The purpose of this study is to examine if the strong hand can assist in the recovery of muscle function in the weak hand after a stroke.

Patients with stroke or transient ischemic attack (TIA) are at high risk of poor outcome, recurrence of cardiovascular events or vascular death.Until now, no reliable predictive biological marker could be identified in the acute phase of stroke.We hypothese that, in the acute phase of ischemic stroke or TIA, the increase of cardiac ( brain natriuretic peptide, BNP) or renal markers (albuminuria, cystatin C)might predict recurrence of cardiovascular events or vascular death. We want to assess which one of these markers has the best prognosis value , in a prospective study of 300 stroke patients followed during 3 years.

This study will examine how the brain rewires itself to make up for the lack of movement many people with stroke experience. It will try to determine if the rewiring differs depending on the location of the stroke and the amount of time since the stroke occurred. For some stoke patients, weakness may persist, while others recover completely after time. It is not known which parts of the brain are involved in the recovery of different types of stroke and if the type of stroke affects recovery. People 18 years of age and older who have had subacute thromboembolic or hemorrhagic stroke more than 3 months before enrolling may participate in this study. Participants come to the NIH Clinical Center three times every 2 years for up to 10 years. At the first visit, patients have a neurological examination and perform tests of motor abilities such as lifting small objects, turning cards, using a spoon, stacking checkers and lifting cans during a short period of time as rapidly as possible. At the second visit, subjects have structural magnetic resonance imaging (MRI) scans of the brain. MRI uses a strong magnetic field and radio waves to obtain images of body organs and tissues. The MRI scanner is a metal cylinder surrounded by a strong magnetic field. During the scan, the subject lies on a table that can slide in and out of the cylinder, wearing earplugs to muffle loud knocking noises associated with the scanning process. Total scan time is about 30 minutes At the third visit, subjects perform some simple movement tasks during functional MRI (fMRI) scans. The procedure is the same as with structural MRI, except that subjects are asked to perform simple movement tasks in the scanner. Before the fMRI scans, electrodes are attached to the subject's arms and legs to monitor muscle activity (surface electromyography). Total scan time is about 1.5 hours. Movement tasks might include pinching a force-measuring instrument with the fingers, pressing different keys on a keyboard as fast as possible, inserting pegs into small holes on a board, lifting weights, flipping cards or similar activities.