Active clinical trials for "Stroke"

Stroke is one of the leading causes of death and disability in the UK and currently costs the country £7bn per year. There is an overwhelming need to accurately and rapidly triage patients to allow best use of finite NHS specialist resources for the treatment of stroke. A simple blood test of substances (the purines) that result from cellular metabolism and are produced in excess when brain cells are starved of oxygen and glucose (as occurs during a stroke) is proposed. The sensors designed by the investigators are used to measure blood purines during a procedure in which blood flow to the brain is reduced to allow surgical interventions on the major arteries that supply the brain. Previous studies by the investigators have shown that as soon as blood flow to the brain is reduced, purines are produced within minutes and are detectable in systemic arterial blood. The current project will now compare the levels of purines in the blood of stroke patients and controls. The purines will be measured on admission to hospital and 24 hours later. The occurrence and magnitude of a stroke will be determined by an MRI scan given between 24 and 72hrs after admission. This study will establish whether purines are elevated in the blood of stroke patients on admission to hospital compared to healthy controls, and whether this correlates with the size of the stroke and damage to the brain.

The aim of the Atahualpa project is to evaluate the cardiovascular (CVH) status of the inhabitants of a rural village of coastal Ecuador as well as to determine the prevalence and retrospective incidence of stroke and ischemic heart disease. The protocol may be used as a pilot for large-scale studies attempting to evaluate the CVH of rural or even urban centers of Latin America, to implement cost-effective strategies directed to reduce the burden of stroke and cardiovascular diseases in the population at large.

The registry of acute stroke under new oral anticoagulants (RASUNOA) is a German multicenter, prospective, observational registry performed at about 50 study centers covering about 50.000 acute ischemic strokes and 6000 acute intracranial hemorrhages per year. Study enrollment will be consecutive. The RASUNOA registry study center is the University Medical Center of the Principal Investigator (Heidelberg, Germany). The registry will focus on treatment decisions and concepts in patients being under treatment with a new oral anticoagulant and suffering from acute ischemic or hemorrhagic stroke.

Background: Accidental falls result in major physical and psychological morbidity in the elderly, especially stroke patients. To get optimal prevention of stroke falls, it is crucial to identify independent risk factors from multivariate analysis of related balance and gait parameters. Aim: To evaluate the effects of balance and gait characteristics in determining whether or not accidental falls may happen. To investigate if the balance and gait parameters affect the time from lesion to when (and if) patients suffer from falls. To compare differences of balance and gait parameters in accidental fall patients between those with severe accidental injuries and those without severe injuries. Methods: The 2-year observational cohort study will enroll 706 elderly stroke patients, who have not had a previous stroke. They will be retrieved from the Inpatient department and followed-up regularly in the Outpatient department when they are discharged. All subjects will be evaluated at 1 month and 6 months after stroke. These evaluations will include: mental, cognition and depression status; lower-limb muscle strength assessed by a dynamometer as well as range of motion of joints assessed by a biaxial electro-goniometry; functional independence measure; balance and gait pattern will be assessed by both clinical observation and objective laboratory examination (a dynamic posturography and computerized gait analysis system); falls and fall-related injuries during the proceeding year. Differences in baseline characteristics are tested by one-way ANOVA, Mann Whitney U or t tests, if appropriate. The investigators will identify the independent risk factors of accidental falls with logistic regression and use the log rank statistic of Kaplan-Meier survival curve to differentiate the risk of accidental falls or fall-related injuries in different groups.

The purpose of the study was to investigate the correlation between the nucleosome concentration and the rate of recanalization after thrombolysis. All patients were admitted to the Stroke Unit at the University Hospital Sainte-Anne where they received standard stroke care. The investigators included all patients treated or not by intravenous thrombolysis for anterior circulation stroke with or without vessel occlusion. Exclusion criteria were neoplasms, chronic inflammatory diseases and cytostatic therapy at the time of stroke and stroke-specifics symptoms that had started earlier than 4.5 hours before admission.

This cohort study aims to evaluate thoracoscopic left atrial appendage excision plus atrial fibrillation ablation versus oral anticoagulants for the prevention of stroke and non-central nervous systemic embolism in patients with atrial fibrillation and thromboembolism.

The purpose of this randomized controlled study is to Examine the feasibility of a home Mirror therapy (MT) program in the NYC metropolitan area; Evaluate the effectiveness of home MT versus traditional home exercise program; and Evaluate the superiority of unimanual or bimanual MT intervention protocols for chronic stroke subjects with moderate hand deficits. Subjects from occupational therapy at the Ambulatory Care Center of NYU Langone Center with a diagnosis of cerebral vascular accident (CVA) or stroke will be divided into three (3) groups: Control Group subjects will participate in standard occupational therapy rehabilitation protocol plus a traditional home based exercise program. Experimental group 1 subjects will participate in standard rehabilitation protocol plus unimanual home based mirror therapy program Experimental group 2 subjects will participate in standard rehabilitation protocol plus bimanual home based mirror therapy program.

Neuroglobin has shown rich neuroprotective effects against cerebral ischemia and hypoxia, and therefore has the potential to impact outcomes after acute ischemic stroke. Hypoxia inducible factor (HIF)-1α is neuroprotective in several models of experimental brain injury and is increased in brain after acute cerebral infarction in humans and experimental animals.The investigators sought to examine the changes in serum neuroglobin and HIF-1α concentrations in patients with acute ischemic stroke during the initial 96-h period after stroke and assessed the relation between them and the relation of them to prognosis of such patients with acute ischemic stroke.

The purpose of this study is to study the safety and feasibility of mobilization of acute ischemic stroke patients treated with IV-tPA between 12-24 hours of treatment.

Transient ischemic attack (TIA) is a transient neurological deficit (speech disturbance, weakness…), caused by temporary occlusion of a brain vessel by a blood clot that leaves no lasting effect. TIA diagnosis can be challenging and an expert stroke evaluation combined with magnetic resonance imaging (MRI) could improve the diagnosis accuracy. The risk of a debilitating stroke can be as high as 5% during the first 72 hrs after TIA. TIA characteristics (duration, type of symptoms, age of the patient), the presence of a significant narrowing of the neck vessels responsible for the patient's symptoms (symptomatic stenosis), and an abnormal MRI are associated with an increased risk of stroke. An emergent evaluation and treatment of TIA patients by a stroke specialist could reduce the risk of stroke to 2%. Stanford has implemented an expedited triage pathway for TIA patients combining a clinical evaluation by a stroke neurologist, an acute MRI of the brain and the vessels and a sampling of biomarkers (Lp-PLA2). The investigators are investigating the yield of this unique approach to improve TIA diagnosis, prognosis and secondary stroke prevention. The objective of this prospective cohort study is to determine which factors will help the physician to confirm the diagnosis of TIA and to define the risk of stroke after a TIA.