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Acute stroke with major intracranial vessel occlusion: Characteristics of cardioembolism and atherosclerosis-related in situ stenosis/occlusion
Publication date: Available online 6 August 2016 Source:Journal of Clinical Neuroscience Author(s): Nobutaka Horie, Yohei Tateishi, Minoru Morikawa, Yoichi Morofuji, Kentaro Hayashi, Tsuyoshi Izumo, Akira Tsujino, Izumi Nagata, Takayuki Matsuo Acute ischemic stroke with major intracranial vessel occlusion is commonly due to cardioembolic or atherosclerosis-related in situ stenosis/occlusion, and immediate identification of these subtypes is important to establish the optimal treatment strategy. The aim of this study was to clarify the differences in clinical presentation, radiological findings, neurological temporal cours...
Source: Journal of Clinical Neuroscience - August 6, 2016 Category: Neuroscience Source Type: research

Stroke Mechanisms.
Authors: Wong KS, Caplan LR, Kim JS Abstract Recent advances in neuroimaging technologies, such as diffusion weighted magnetic resonance imaging (MRI), perfusion weighted computed tomography (CT)/MRI, MR/CT angiography and Doppler ultrasonography allow us to determine the mechanisms of stroke and transient ischemic attack. In addition, high-resolution vessel wall MRI is nowadays increasingly used to understand the stroke mechanism in patients with intracranial atherosclerosis. Artery to artery embolism, hypoperfusion and the combination of the two are the important stroke mechanisms in patients with extracranial at...
Source: Frontiers of Neurology and Neuroscience - December 15, 2016 Category: Neuroscience Tags: Front Neurol Neurosci Source Type: research

Fetal origin of posterior cerebral artery related to poor collaterals in patients with acute ischemic stroke
Publication date: Available online 20 July 2019Source: Journal of Clinical NeuroscienceAuthor(s): Pornpatr A. Dharmasaroja, Nattaphol Uransilp, Pritsana PiyabhanAbstractThe anatomic variation of Circle of Willis (CW) has been shown to have a great impact on its compensatory capacity during acute ischemic stroke. The purpose of the study was to evaluate the effect of variations in CW on collateral circulation in patients with acute ischemic stroke who had major artery occlusion. Patients with acute ischemic stroke within 4.5 h of stroke onset who had at least moderate severity of stroke (NIHSS ≥ 6), caused by major ...
Source: Journal of Clinical Neuroscience - July 21, 2019 Category: Neuroscience Source Type: research

An Emergent Large Vessel Occlusion Screening Protocol for Acute Stroke: A Quality Improvement Initiative
Background: Nurses play an integral role in triaging stroke patients. The purpose of this quality improvement initiative was to determine the efficacy of using an emergent large vessel occlusion (ELVO) screening protocol in the emergency department by nursing staff to improve identification of eligible patients as compared with current practice, improving time to endovascular treatment. Methods: Retrospective chart review was used to identify 76 patients admitted to a large urban stroke center. Of these, 36 presented during a 4-month period before the implementation of the Stroke Vision, Aphasia, Neglect (Stroke VAN) tool ...
Source: Journal of Neuroscience Nursing - March 13, 2018 Category: Neuroscience Tags: Article Source Type: research

Web of the carotid artery: An under-recognized cause of ischemic stroke
We describe here an additional case of ischemic stroke caused by a carotid web in a young healthy woman. Detection of this vascular abnormality required the use of CT angiography and cerebral digital subtraction angiography. Although there is little evidence regarding the optimal management of this condition, under medical treatment with dual antiplatelet therapy our patient remained free of recurrent stroke events. This case report study illustrates that the web of the carotid artery is an uncommon cause of stroke which should always be considered and ruled out, especially in young patients with otherwise cryptogenic stro...
Source: Journal of Clinical Neuroscience - March 16, 2018 Category: Neuroscience Source Type: research

Development of a predictive scale for cardioembolic stroke using extracted thrombi and angiographic findings
Publication date: Available online 19 February 2020Source: Journal of Clinical NeuroscienceAuthor(s): Bomi Kim, Yeon Mee Kim, Sung-cheol Jin, Jun-won Lee, Byung In Lee, Sung Eun Kim, Kyong Jin Shin, JinSe Park, Kang Min Park, Si Eun Kim, Seongho Park, Sam Yeol HaAbstractWe analyzed the histopathological findings of the clots obtained from patients with acute ischemic stroke by mechanical thrombectomy. We then developed a clinical scoring system for predicting pathogenic causes in patients with undetermined ischemic stroke using these histopathological and the angiographic findings during endovascular treatment. Only cases ...
Source: Journal of Clinical Neuroscience - February 20, 2020 Category: Neuroscience Source Type: research

Vasodilatation of multiple cerebral arteries in early stage of stroke-like episode with MELAS
We describe a patient with mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS), with multiple cerebral vasodilatations in a stroke-like episode visualised by using magnetic resonance angiography (MRA) and CT angiography (CTA). In the acute stroke-like episode stage, T2-weighted and fluid-attenuated inversion recovery MRI showed high-intensity areas in the left occipital area. In addition, MRA and CTA revealed prominent dilatation of the left posterior cerebral artery and temporal branches of the middle cerebral artery with focal hyperperfusions using CT perfusion (CTP) that corresponde...
Source: Journal of Clinical Neuroscience - January 14, 2015 Category: Neuroscience Source Type: research

Multimodal CT in Acute Stroke
AbstractPurpose of ReviewMultimodal CT imaging (non-contrast CT, NCCT; CT angiography, CTA; and CT Perfusion, CTP) is central to acute ischemic stroke diagnosis and treatment. We reviewed the purpose and interpretation of each component of multimodal CT, as well as the evidence for use in routine care.Recent FindingsAcute stroke thrombolysis can be administered immediately following NCCT in acute ischemic stroke patients assessed within 4.5  h of symptom onset. Definitive identification of a large vessel occlusion (LVO) requires vascular imaging, which is easily achieved with CTA. This is critical, as the standard of care...
Source: Current Neurology and Neuroscience Reports - July 26, 2019 Category: Neuroscience Source Type: research

Radiation exposure during computerized tomography-based neuroimaging for acute ischemic stroke: a case-control study
J Integr Neurosci. 2021 Sep 30;20(3):605-611. doi: 10.31083/j.jin2003064.ABSTRACTPatients and clinicians often raise concerns about radiation exposure to various organs during computerized tomography-based imaging. We evaluated radiation exposure during standard and low-dose imaging protocols for non-contrast computerized tomography, computerized tomography angiography and computerized tomography perfusion of the head. Whether reducing the radiation dose affected the image quality was also evaluated. Radiation data were retrieved for computerized tomography-based imaging studies performed for acute ischemic stroke patients...
Source: Journal of Integrative Neuroscience - October 14, 2021 Category: Neuroscience Authors: Subhash C Kapur Jeevesh Kapur Vijay K Sharma Source Type: research

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