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Intracranial stenosis is prevalent among Asians and constitute a common cause of cerebral ischemia. While the best medical therapy carries stroke recurrence rates in access of 10% per year, intracranial stenting was associated with unacceptable peri-procedural ischemic events. Cerebral ischemic events are strongly related to the severity of intracranial stenosis, being high in patients with severe intracranial stenosis with poor vasodilatory reserve. Enhanced External Counter-Pulsation (EECP) therapy is known to improve myocardial perfusion by facilitating the development of collateral blood vessels in the heart. The investigators hypothesize that EECP therapy may be useful in patients with severe stenosis of intracranial internal carotid (ICA) or middle cerebral artery (MCA).
In patients undergoing planned surgery for carotid tromendarterendectomy, a non-invasive device that registers heart rate variability is attached. furthermore a non-invasive device that monitors cerebral oxygenation- near infrared spectroscopy is also attached. At times when surgeons clamps the carotid artery, there will be a moment with controlled cerebral ischemia. This will be registered by the devices. The information obtained will be used to teach artificial intelligence what patterns are related to cerebral ischemia. the same procedure will be performed in patients undergoing ocklusive cerebral trombectomy, so the artificial intelligence will learn to recognize cerebral reperfusion.
The aim of this study is to evaluate the clinical feasibility of the angiographic Flat Detector CT perfusion imaging (6s PBV) technique. The investigators will examine the specific vessel distribution of patients with steno-occlusive disease, treated with a surgical extracranial-intracranial bypass and assess the cerebral perfusion during test occlusion upon a neurovascular treatment and in intracranial tumor patients referred for potential pre-operative embolization. This study encompasses three scientific objectives: 1. What is the selective contribution of an individual bypass artery to the brain perfusion? 2. Is a selective intra-arterial angiographic perfusion examination useful in the decision-making of performing pre-operative embolization of intracranial tumors? 3. What is the usefulness of performing additive 6s PBV images compared to classical 2D angiography and/or clinical neurological evaluation in case of test occlusion in the evaluation of possible mother vessel occlusion in treatment of complex neurovascular diseases?
This is an initial Phase1/2 dose-finding, double-blind, placebo-controlled, multi-center study to evaluate the safety and tolerability of NCS-01 in patients with acute ischemic stroke. All patients will be randomized within 24 hours of stroke onset. This study will be conducted in 2 stages.
The purpose of this study is to determine whether DEB is more effective than common PTA balloon using under in long-term vessel patency and inhibiting restenosis in Vertebral Artery Ostium Stenosis
The investigators aim to determine if dry needling technique in a non myofascial trigger point area generate the same spasticity, function and pain answers as carrying it out in a myofascial trigger point area. In the same way, the investigators aim to prove how much the effect lasts with an only intervention.
The proposed study will investigate the clinical use of the ISCDX test that may differentiate between diverse stroke etiologies as listed below: Aim 1: Differentiate between cardioembolic and large artery atherosclerotic ischemic strokes, when hemorrhagic stroke is ruled out, as defined by TOAST classification of subtypes of acute ischemic stroke. Aim 2: In cases of ischemic strokes of unknown or "cryptogenic" etiology, determine the ability of biomarker blood tests to predict etiology between cardioembolic and large artery atherosclerotic.
A prospective, open label single arm feasibility study to evaluate the safety and performance of the Magneto Wire in patients diagnosed with acute ischemic stroke and planned for thrombectomy procedure.
There is a debate whether ticagrelor is superior to aspirin in treating patients with ischemic stroke or not, most of the studies examine the effect of both drugs within 24 hours of acute stroke some find that there is no difference between ticagrelor and aspirin, others find that ticagrelor is superior to aspirin. At this study the investigators aim at evaluating the role of loading ticagrelor received within 9 hours of acute ischemic stroke in improving neurological outcome of stroke. And evaluating the risk of hemorrhagic and non- hemorrhagic complications associated with the use of ticagrelor180 ml oral loading dose within 9 hours acute ischemic stroke
The use of the systems of machine learning for the quantification, location and diagnosis of ischemic stroke in non-contrasted head computed tomography, is a method with high efficacy, accessible and susceptible for standardization, for the assistance in the clinical decision making in the absence of specialized health personnel for the attention of this disease.