View clinical trials related to Cerebrovascular Disorders.
Filter by:Vascular risk factors may account for up to 80% of the memory and thinking problems experienced by our aging population today, by far in excess of that caused by Alzheimer's disease. By doing this study, we hope to learn how vascular risk factors cause memory and thinking changes in the elderly, and whether we can prevent memory and thinking changes by reducing these risk factors. Successful completion of project aims will allow an integrated understanding of mild cognitive impairment caused by vascular risks (MCI-CVD) with the potential for tremendous impact on one of the major healthcare crises facing the nation today. The study will enroll 80 participants with memory and thinking problems (mild cognitive impairment; MCI) and are at risk for stroke and further difficulties with memory and thinking that may eventually lead to disability and a diagnosis of dementia. Each participant will be randomized into one of two groups (40 in each group) and followed over 36 months. One group will be followed to allow us to understand the natural history of memory and thinking impairment, while the other group will receive intensive education and assistance with vascular risk factor (CVD) control.
Background: Stroke represents one of the major health problems worldwide, particularly in transitional and industrialized countries. Stroke has a remarkable socioeconomic impact, especially in the ageing population, and therefore stroke prevention is important. Secondary preventive measures and rehabilitation are essential for reduction of recurrent events. However, to date appropriate secondary preventive programs for patients surviving a stroke with minor or no residual deficits have been poorly studied. Specific aims/projects: The aim of this study is to validate the effects of an outpatient secondary prevention program on vascular risk factors, adherence to vascular-protective medication, exercise capacity and health related quality of life. Working Hypothesis: The outpatient rehabilitation program results in a significant short (3 months) and long-term (1 year) improvement of vascular risk factors, neurological functions, exercise capacity, adherence to vasoprotective medication and health related quality of life. Experimental design/Methods: This is a prospective, randomized clinical trial. At least 100 patients will be randomized either to the interventional group or to a group which is treated only by the family physician. All patients will be assessed at baseline, at 3 months and 1 year. The primary outcome is the number of reached cardiovascular health goals (6 metrics) between the interventional group and the group which is treated only by the family physician. Expected value of the proposed project: The study has the potential to show that an outpatient rehabilitation program significantly improves vascular risk factors, adherence to medication, enhances quality of life and eventually reduces recurrent strokes and other vascular events. If this is confirmed, introducing outpatient rehabilitation programs will have a major socioeconomic impact.
The investigators will conduct a proof-of-concept study to provide preliminary evidence of efficacy of physical exercise dose on ambulatory function in adults undergoing sub-acute stroke rehabilitation.
This study is about rehabilitation of arm function after a stroke. The investigators are testing the dosage of therapy that is needed for meaningful recovery of arm and hand function. Dosage of therapy refers to the amount of time (in this case, the total number of hours) that a person participates in treatment. The investigators hope to learn how much therapy time is needed in order for change to occur in arm and hand function after a person has had a stroke. Eligible candidates must have had a stroke affecting the use of an arm or hand at least 6 months ago.
The aim of this study is the development and the implementation of a new protocol about home-based exercises, supported by an illustrated manual, for the treatment of individuals with stroke. The hypothesis is that this group of patients who are going to carry out the training of this study protocol are going to show improvement in measured parameters (functionality and physical performance), which allows this protocol to be improved and published as a proposal of physiotherapeutic treatment.
Background: Several risk score models are now available to assist clinicians estimate outcomes after an acute ischemic stroke. Limited information is available on the predictive value of these scores compared to real outcomes and clinical judgment. Objectives: To compare clinician judgment with the use of a validated stroke risk score (iScore) and patients' outcomes.
This randomized clinical trial examines if lowering and maintaining 24-hour ambulatory systolic blood pressure to <130 mmHg (intensive control) versus <145 mmHg (standard control) slows/halts the progression of deterioration of mobility and cognitive function linked to white-matter disease (also known as white-matter hyperintensity or WMH) in patients with normal or mildly impaired mobility and cognition in subjects with detectable cerebrovascular disease (>0.5% WMH fraction of intracranial contents). The study patients will be enrolled and randomized to one of two levels of ambulatory blood pressure control (intensive to achieve a goal 24-hour systolic blood pressure of < 130 mmHg or standard to achieve a goal 24-hour systolic blood pressure of < 145 mmHg) for a total of 36 months.
There is a sharp rise in the rate of coronary heart disease diagnoses and chest pain consultations in the 90 days before a first heart attack. There is some evidence that chest pain and angina symptoms in this period have a beneficial effect on heart attack outcomes in hospital and shortly after discharge. However, the available evidence is lacking in three key areas. First it is based on a retrospective patient report of symptoms after the heart attack has occurred; this means that patients are required to survive their heart attack and may make errors when reporting prior symptoms. Second, evidence for an effect on longer term outcomes, and coronary outcomes in particular (e.g. coronary death, further heart attacks) are unknown. Third, there is conflicting evidence that these effects might differ by age, in men and women, and according to treatment in hospital. The investigators hope to address the limitations in the evidence by performing a large, prospective study of the occurrence, timing and effect of different types of symptoms and disease diagnoses occurring before heart attack. The investigators hypothesise that prospectively collected, clinical measures of chest pain symptoms and cardiovascular diagnoses in primary care will have a beneficial effect on short term coronary mortality and may have a beneficial effect on longer term coronary outcomes.
Background and rationale: In clinical practice, antihypertensives are generally prescribed for use in the morning, whereas some statins are recommended for use in the evening. There is evidence that the reduction in LDL cholesterol achieved with some statins is superior when taken in the night, but it is unclear whether the additional reduction in LDL cholesterol(and the reported improvement in BP control when aspirin is taken in the evening) is offset by a reduction in adherence when taking medication in the evening. Current product labelling recommends night use for simvastatin and does not state a timing preference for aspirin or blood pressure lowering medicines. There is therefore uncertainty concerning the best timing of administration of the polypill. This uncertainty will be addressed by this trial. Trial design: Randomised, open label cross over trial (n=75) of the polypill in the morning compared with the evening administration compared with individual agent administration (acetylsalicylic acid and blood pressure lowering agents in the morning, and statin in the evening) in individuals at high risk of cardiovascular disease. Patients will be recruited to the RHP 2c (acetylsalicylic acid 75mg, simvastatin 40mg, lisinopril 10mg, hydrochlorthiazide 12.5mg), and will be randomly allocated to the sequence of time of administration.
Quantifying Collateral Perfusion in Cerebrovascular Disease-Moyamoya disease and stroke patients