View clinical trials related to Acute Ischemic Stroke.
Filter by:To establish a predictive model and scoring system for predicting severe complications after thrombectomy. This scoring system can be used to identify high-risk patients after endovascular thrombectomy, guide the early use of adjunctive interventions, and provide reference for future clinical trials.
Acute Basilar Artery Occlusion (ABAO), a condition with a high risk of mortality or disability (up to 80%). The safety and efficacy of endovascular thrombectomy (EVT) in ABAO remains uncertain due to inconsistent evidence from random controlled trials (RCTs). Recent studies have explored the use of MRI in ABAO, this study aims to assess the efficacy and safety of EVT and standard medical therapy (SMT) in the treatment of ABAO within 24 hours of onset. It also aims to explore the feasibility and prognostic value of MRI-based assessment of ABAO infarction using AI image analysis software.
This study evaluates the efficacy of investigational device named Stroke Onset Time Artificial Intelligence(AI) (Model name:NNS-SOT). Using the investigational device, analyze the image and the onset time of occurrence of acute ischemic stroke lesion on the brain image (4.5 hours or more from the onset of symptoms) and evaluate the efficacy of correctly estimating the onset time.
The goal of this clinical trial is to confirm the efficacy and feasibility of early rehabilitation combined with virtual reality training in patients following first-time acute stroke. The main questions it aims to answer are: - The impact of virtual reality training on muscle strength; - The impact of virtual reality training on functional recovery; - The impact of virtual reality training on mood state. Researchers will compare the experimental group, which received early rehabilitation combined with VR training, and the comparison group, which received only early rehabilitation, to see if VR training has clinical benefits when provided alongside early rehabilitation during hospitalization.
The investigators continuously collected data from 482 AIS inpatients at the Neurology Department of Hebei General Hospital. Both demographic and clinical data were collected from the study subjects. Different head magnetic resonance imaging sequences were used to assess the subjects' CMBs, white matter lesions, and old lacunar infarcts (LI). Various statistical methods, including the t-test, χ2 test, and logistic regression, were used to analyze the gender heterogeneity of the influencing factors for CMBs in AIS patients.
It is a retrospective cross-sectional study, where consecutive stroke patients with vessel occlusion on magnetic resonance angiography (MRA) will be included for the study for one year. The relation of Susceptibility vascular sign (SVS) on Susceptibility Weighted Imaging (SWI) with risk factors and territory involved and length of thrombus will correlated with the National Institutes of Health stroke scale (NIHSS).Among total number of patients included in this study the demographics of the patients will be calculated. Risk factors for stroke of the patients included in this study will tabulated. The site of occlusion will be tabulated. The mean NIHSS scale will be calculated. Presence of SVS in patients with MR angiography positive vessel occlusion will be calculate in percentage. Subgroup analysis of presence of SVS on SWI will be done. The mean length of the thrombus will be calculated in these patients with positive SVS. Correlation between SVS on SWI with the risk factor of the patient by using the chi-square test will be calculated. A Chi-square test will be done to find out the correlation between the SVS with territorial occlusion. The correlation between the NIHSS score and length of thrombus will be calculated using the Pearson test. SWI can be useful in identifying the location of the thrombus, and NIHSS can determine the thrombus length in acute stroke. A higher incidence of SVS can be associated with risk factors and it also depends upon the site of occlusion of the vessel.
Neuroprotection is expected to be an important therapeutic strategy for acute ischemic stroke(AIS), but almost all neuroprotective drugs proved effective in rodent models have failed after entering clinical trials. This study aims to screen the differentially expressed proteins in peripheral blood of patients with acute ischemic stroke and with further study in the animal model of non-human primate cerebral infarction, we may determine the biomarkers that can evaluate the efficacy of neuroprotective drugs.
Rationale: Recently, one prospective multicenter RCT reported a potential beneficial effect of intra-arterial alteplase following successful endovascular thrombectomy (EVT) in patients with an acute intracranial large vessel occlusion. In 2018, another prospective multicenter RCT supported the superiority of tenecteplase over alteplase in ischemic stroke patients with large vessel occlusion. Objective: To assess the effect of EVT in addition to intra-arterial tenecteplase compared to EVT alone, in patients with large vessel occlusion of posterior circulation, on functional and safety outcomes. Study design: This is a parallel group, randomized clinical trial of EVT with IA-TNK versus EVT. The trial has observer blind assessment of the primary outcome and of neuro-imaging at baseline and follow-up. Study population: Patients with acute intracranial large vessel occlusion of posterior circulation and an eTICI 2b-3 after EVT. Main study parameters/outcomes: The primary effect parameter will be excellent functional status at day 90 defined as a modified Rankin Score (mRS) of 0-1. The estimate will be adjusted for the known prognostic variables age, pre-stroke mRS, time from onset to randomization, stroke severity (NIHSS) and collaterals and adjusted and unadjusted estimates with corresponding 95% confidence intervals will be reported.
The aim of this study was to determine the differences in hemodynamics between different positions in patients undergoing ultra-early reperfusion therapy.
The goal of this observational study is to learn about the long-term efficacy of our previous study in acute ischemic stroke(AIS) patients who underwent either remote ischemic postconditioning(RIPC) or sham treatment after intravenous thrombolysis. The main questions it aims to answer are: - Dose the RIPC treatment combined with IV thrombolysis can improve the long-term functional outcome in AIS patients? - Dose the RIPC treatment combined with IV thrombolysis can improve the incidence rates of all-cause and cardiovascular mortality, recurrent stroke/TIA, new-onset clinical AF on this long-term follow-up? A single rater (A.E.P.) trained by an experienced stroke physician (S.T.E.) contacted patients, relatives, and family physicians to gather all available medical information on the following issues: 1) survival status, 2) date of death in those who died (based on information of the treating physicians), 3) mRS score at the time of the interview, 4) recurrent stroke/TIA, 5) new onset atrial fibrillation, 6) other cardiovascular events, including myocardial infarction, pulmonary embolism, deep venous thrombosis, peripheral arteriopathy. Researchers will compare RIPC group and control group to see if the RIPC treatment have a long-term effect in AIS patients.