View clinical trials related to Stroke.
Filter by:The BioImage Study is a study of the characteristics of subclinical cardiovascular disease, as measured by imaging modalities, unsupervised circulating biomarker measurements, and risk factors that predict progression to overt clinical cardiovascular disease, in a diverse, population-based sample of 7,300 men (aged 55-80) and women (aged 60-80). The socio-demographics of the study population aims to mirror the US population as a whole with approximately 69% of the cohort will be white, 12% African-American, 13% Hispanic, 4% Asian, predominantly of Chinese descent and 2% other (U.S. Census Bureau: 2000). The cohort will be recruited from the Humana Health Plan membership represented in three major US markets; Chicago, Illinois, Louisville, Kentucky and Southern Florida. Of the 7,300 participants, 6,000 will be characterized with respect to their Framingham risk score and various imaging features including coronary calcification, carotid intima-media thickness (IMT), presence of atherosclerotic plaques, and lower extremity vascular insufficiency as determined by the ankle brachial index (ABI). Blood samples will be assayed for putative biomarkers using a variety of methodologies including unsupervised proteomic and metabolomic profiling of plasma, RNA expression profiling and candidate gene analysis or genome wide scanning. These approaches will also be combined with targeted assays for particular analytes. Biological samples will be banked at the time of collection for these analyses and for additional follow on case-control and validation studies. Participants will be followed for identification and characterization of cardiovascular disease events, including acute myocardial infarction and other forms of Coronary Artery Disease (CAD), and stroke; mortality; and for cardiovascular disease interventions. The remaining 1,300 subjects will be evaluated and followed in a similar manner except no imaging studies will be conducted. The study will be conducted using an innovative infrastructure and method of participant recruitment and enrollment. Mobile clinics containing the imaging equipment will travel to the three markets included in the study. The mobile clinic configuration allows for a high level of consistency in the data measurements which will be collected from diverse geographic areas and populations. Participants will be recruited based on claims monitoring to pre-determine eligibility. The baseline examinations of the 7,300 participants will occur over a 12-month period. Based on particular findings (Coronary Artery Calcium (CAC) score, Carotid Intima-Media Thickness (IMT), atherosclerotic plaque, Ankle Brachial Index (ABI), and presence of Abdominal Aortic Aneurysm (AAA), approximately 3,000 participants of the 6,000 imaging cohort will be referred for higher resolution imaging modalities to better characterize their arterial disease. This additional imaging will also be conducted at the mobile clinics and occur during the same 12-month period. Participants will be contacted every 6-months throughout the 3-year study to assess cardiovascular events, clinical morbidity and mortality, and to obtain additional blood samples.
The objective of this study was to investigate the effects of the Swiss ball on patients with hemiplegia due to CVA.
The purpose of this study is to compare suprascapular nerve block with therapeutic ultrasound in stroke patients who have shoulder pain in weak side.
Many patients who have sustained strokes are unable to effectively use their hemiparetic upper extremity. Limited mobility in the performance of daily activities, such as eating or dressing, adversely affects their quality of life and compromises independence. Rehabilitation techniques engaging the hemiparetic limb in repetitive task practice (RTP) may improve upper extremity function and quality of life in patients with stroke, but costs limit the number of patients that can utilize this type of therapy. Advances in microprocessor design and function make the use of an assistive device as an adjunct to RTP plausible. An innovative assistive repetitive motion (ARM) device using an "air muscle" has been developed specifically for the rehabilitation of the hemiparetic upper extremity. The primary aim of the proposed study is to collect pilot data to estimate the clinical effectiveness of using the ARM device in conjunction with RTP to improve upper extremity motor function and the quality of life of patients with stroke. Twenty sub-acute (3 to 9 mos. post-stoke) patients will be randomized to a RTP only or ARM + RTP group. The RTP group will receive 15 days (4 hours per day) of intensive one-on-one RTP therapy. The ARM + RTP group will use the ARM device for 2 hours per day and receive 2 hours of intensive RTP per day for 15 days. Clinical motor function and quality of life measures will be taken before and after the interventions and two months later. We hypothesize that the ARM + RTP group will exhibit greater improvements in motor function and quality of life measures than the RTP only group.
This is a randomized, double-blind, placebo-controlled, single-dose, design investigating the safety, tolerability and efficacy of NA-1, a peptide designed to reduce ischemic brain damage. Up to 200 male and female patients undergoing endovascular repair of brain aneurysm will be dosed with 2.60 mg/kg of NA-1 or placebo as a 10 minute intravenous infusion after completion of the endovascular procedure on Day 1 of the study period. Subjects will undergo interim procedures Days 2-4 and end-of study procedures on Day 30. Standard safety criteria will be analysed. Efficacy endpoints include the ability of NA-1 to: 1) reduce the volume of ischemic embolic strokes, 2) reduce the number of ischemic embolic strokes, 3) reduce vascular cognitive impairment, and 4) reduce the frequency of large strokes induced by the endovascular procedure. The plasma concentrations of NA-1 will also be analyzed.
This study investigates hypothesizes that the combination of dobutamine stress echocardiography with dobutamine stress echocardiography with real time perfusion myocardial contrast echocardiography and coronary computed tomography is a better modality for detecting coronary artery disease in end-stage renal disease patients than coronary angiography, and in predicting patient outcomes. Demonstrating this would lead to increased use of DSE with RTCE and coronary CT at kidney transplant centers throughout the nation, leading to improved anatomical and functional detection of CAD without the need for further invasive procedures.
The purpose of the study is to evaluate the efficacy and safety of Butylphthalide Soft Capsules (En Bi Pu, NBP) in Secondary Prevention of Ischemic Stroke
The purpose of this study is to increase treatment of acute stroke with tissue plasminogen activator (tPA) across the District of Columbia. This study, however, will not evaluate tPA as an intervention.
Botulinum toxin type A (BtxA) injection and modified constraint-induced movement therapy (mCIMT) are both promising approaches to enhance recovery after stroke. However, the combined application of the two modalities has rarely been studied. The aim was to investigate whether combined BtxA and mCIMT would produce greater improvements in spasticity and upper extremity function than BtxA plus conventional rehabilitation in chronic stroke patients with upper extremity spasticity.
The purpose of this study is to determine whether stroke patients with swallowing problems will show greater swallowing improvement with intense oral exercise than subjects who perform either a low intensity oral exercise or a sham exercise.