Ensayos clínicos

A transient ischemic attack (TIA) is a transient episode of neurological dysfunction caused by focal brain, spinal cord, or retinal ischemia, without acute infarction. An ischemic stroke is a cerebral infarction. In POINT, eligibility is limited to brain TIAs and to minor ischemic strokes (with an NIH Stroke Scale [NIHSS] score less than or equal to 3).

TIAs are common, and are often harbingers of disabling strokes. Approximately 250,000-350,000 TIAs are diagnosed each year in the US. Given median survival of more than 8 years, there are approximately 2.4 million TIA survivors. In a national survey, one in fifteen of those ...

The objective of this study is to determine the mechanisms of stroke in patients with Intracranial Atherosclerotic Disease (IAD) by specifically evaluating limitations of antegrade flow through the stenotic artery, distal tissue perfusion to the affected territory, and artery-to-artery embolism. The hypothesis is that non-invasive imaging biomarkers that stratify stroke risk and distinguish mechanisms of IAD. This prospective multicenter study will enroll 175 patients with recently symptomatic high-grade IAD. Patients will be studied within 21 days of the index event (allowing appropriate time to arrange for diverse imaging modalities), with the following advanced neuroimaging techniques to elucidate mechanisms of recurrent ...

The purpose of this observational study is to describe how the human endocannabinoid system (ECS) responds to an ischemic stroke or transient ischemic attack and explore whether modulation of the ECS holds potential to serve as a therapeutic target for neuroprotective therapies.     

The purpose of this study is to assess the effectiveness of Clopidogrel for preventing the occurance of transient ischemic attacks (TIA) and minor strokes.

The purpose of this study is to engage Wisconsin's community hospitals statewide to identify the regional pre-hospital, hospital and community barriers to timely acute ischemic stroke therapy.

The primary objective of the study is to demonstrate that anticoagulation with bivalirudin results in fewer major bleeding complications compared with unfractionated heparin (UFH) in subjects undergoing peripheral endovascular interventions (PEI). The secondary objective is to identify potential benefits from bivalirudin therapy on other clinically important events such as death, myocardial infarction (MI), stroke and/or transient ischemic attack (TIA), amputation, unplanned repeat revascularization (URV), and minor bleeding, as well as potential economic benefits that may result from improved clinical outcomes.

The primary objective of the study is to compare the effect of 90-day treatment with ticagrelor (180 mg [two 90 mg tablets] loading dose on Day 1 followed by 90 mg twice daily maintenance dose for the remainder of the study) vs acetylsalicylic acid (ASA)-aspirin (300 mg [three 100 mg tablets] loading dose on Day 1 followed by 100 mg once daily maintenance dose for the remainder of the study) for the prevention of major vascular events (composite of stroke, myocardial infarction [MI], and death) in patients with acute ischaemic stroke or transient ischaemic attack (TIA).

The overall objective of our network of investigators is to develop and conduct clinical trials and other large multi-centre studies in childhood stroke. Our specific aims are:

Objective 1: To ascertain in a prospective, consecutive cohort study the numbers of newborns and children with ischemic stroke, their stroke sub-types and risk factors, their current treatments and outcomes within our centers. These data will provide the rationale and feasibility data for our group to design and implement the initial randomized controlled trials (RCTs) in paediatric stroke as well as other fundable grant proposals.

Objective 2: To develop standardized data ...

The purpose of this study is to compare the relatively new procedure of stent-assisted carotid angioplasty to the traditional and accepted surgical approach of carotid endarterectomy for the treatment of carotid artery stenosis to prevent recurrent strokes in those patients who have had a TIA (transient ischemic attack) or a mild stroke within the past 6 months (symptomatic) and in those patients who have not had any symptoms within the past 6 months (asymptomatic).

The purpose of this study is to verify that high Premature Ventricular Complex (PVC) burden is associated with increased risk of stroke and/or Transient Ischemic Attack (TIA), to examine outcomes such as stroke/TIA, atrial fibrillation/flutter, and all-cause mortality associated with PVCs, and to evaluate whether PVCs are associated with development of appendage dysfunction.

The purpose of this study is to determine whether treatment of obstructive sleep apnea (OSA) with positive airway pressure starting shortly after acute ischemic stroke or high risk TIA (1) reduces recurrent stroke, acute coronary syndrome, and all-cause mortality 6 months after the event, and (2) improves stroke outcomes at 3 months in patients who experienced an ischemic stroke.

The purpose of this study is to determine whether treatment of obstructive sleep apnea (OSA) with positive airway pressure starting shortly after acute ischemic stroke or high risk TIA (1) reduces recurrent stroke, acute coronary syndrome, and all-cause mortality 6 months after the event, and (2) improves stroke outcomes at 3 months in patients who experienced an ischemic stroke.

The aim of this study is to create a state-wide biorepository and resource center for cerebrovascular diseases in Florida. The Center will collect and store detailed phenotypic information, DNA, and other biofluids on affected subjects with diverse cerebrovascular conditions, including, but not limited to, ischemic stroke, transient ischemic attack (TIA), intracerebral hemorrhage (ICH), aneurysmal subarachnoid hemorrhage (aSAH), vascular dementia (VAD), anoxic brain injury, unruptured intracranial aneurysm (UIA), cavernous malformation, arteriovenous malformations (AVM), carotid and vertebral arterial dissections, symptomatic and asymptomatic cervical carotid artery atherosclerotic stenosis, non-aneurysmal perimesencephalic subarachnoid hemorrhage (naSAH), cerebral venous thrombosis (CVT), moyamoya disease, fibrosmuscular dysplasia (FMD), non-traumatic, angiography-negative subarachnoid ...