Cheemun Lum

Radiation for Pulmonary Artery Chondrosarcoma

Cheemun Lum, W.J. Hsia

Abstract Background: Chondrosarcoma is the second most common primary bone tumor, with grade III tumors being associated with a lung metastases rate of >50%. It is also known to metastasize to the pulmonary artery. Multiple case reports show pulmonary artery chondrosarcoma presenting …

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Development and Validation of a Postprocedural Model to Predict Outcome After Endovascular Treatment for Ischemic Stroke

Vicky Chalos, Esmée Venema, Maxim J.H.L. Mulder, Bob Roozenbeek et autres

Importance: Outcome prediction after endovascular treatment (EVT) for ischemic stroke is important to patients, family members, and physicians. Objective: To develop and validate a model based on preprocedural and postprocedural characteristics to predict functional outcome for individual patients after EVT. Design, Setting, …

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Aetiology of extracranial carotid free-floating thrombus in a prospective multicentre cohort

Dar Dowlatshahi, Cheemun Lum, Bijoy K. Menon, Aditya Bharatha et autres

BACKGROUND: Carotid free-floating thrombi (FFT) in patients with acute transient ischaemic attack (TIA)/stroke have a high risk of early recurrent stroke. Management depends on aetiology, which can include local plaque rupture, dissection, coagulopathy, malignancy and cardioembolism. Our objectives were to classify the …

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Association of Iatrogenic Infarcts With Clinical and Cognitive Outcomes in the Evaluating Neuroprotection in Aneurysm Coiling Therapy Trial

Aravind Ganesh, Mayank Goyal, Alexis T. Wilson, Johanna Maria Ospel et autres

Background and Objectives Small iatrogenic brain infarcts are often seen on diffusion-weighted MRI (DWI) following surgical or endovascular procedures, but there are few data on their clinical effects. We examined the association of iatrogenic infarcts with outcomes in the ENACT (Evaluating Neuroprotection …

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Differentiating Carotid Free-Floating Thrombus From Atheromatous Plaque Using Intraluminal Filling Defect Length on CTA

Carlos Torres, Cheemun Lum, Paulo Puac, Grant Stotts et autres

Objective To validate a previously proposed filling defect length threshold of >3.8 mm on CT angiography (CTA) to discriminate between free-floating thrombus (FFT) and plaque of atheroma. Methods This was a prospective multicenter observational study of 100 participants presenting with TIA/stroke symptoms …

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New and expanding ventricular hemorrhage predicts poor outcome in acute intracerebral hemorrhage

Vignan Yogendrakumar, Tim Ramsay, Dean A. Fergusson, Andrew M. Demchuk et autres

OBJECTIVE: To describe the relationship between intraventricular hemorrhage (IVH) expansion and long-term outcome and to use this relationship to select and validate clinically relevant thresholds of IVH expansion in 2 separate intracerebral hemorrhage (ICH) populations. METHODS: We used fractional polynomial analysis to …

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Independent Validation of the Hematoma Expansion Prediction Score: A Non-contrast Score Equivalent in Accuracy to the Spot Sign

Vignan Yogendrakumar, Tim Ramsay, Dean A. Fergusson, Andrew M. Demchuk et autres

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Abstract WP462: New or Expanding Ventricular Hemorrhage Predicts Poor Outcome After Intracerebral Hemorrhage

Vignan Yogendrakumar, Tim Ramsay, Dean A. Fergusson, Andrew M. Demchuk et autres

Introduction: Baseline intraventricular hemorrhage (IVH) is a predictor of poor outcome in acute intracerebral hemorrhage (ICH) patients. However, questions remain as to the exact burden that new IVH development, seen on follow-up imaging, or what degree of interval IVH expansion, impacts long …

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Penumbral imaging and functional outcome in patients with anterior circulation ischaemic stroke treated with endovascular thrombectomy versus medical therapy: a meta-analysis of individual patient-level data

Bruce C.V. Campbell, Charles B.L.M. Majoie, Gregory W. Albers, Bijoy K. Menon et autres

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Imaging features and safety and efficacy of endovascular stroke treatment: a meta-analysis of individual patient-level data

Luís San Román, Bijoy K. Menon, Jordi Blasco, María Hernández‐Pérez et autres

Background Evidence regarding whether imaging can be used effectively to select patients for endovascular thrombectomy (EVT) is scarce.We aimed to investigate the association between baseline imaging features and safety and efficacy of EVT in acute ischaemic stroke caused by anterior large-vessel occlusion. …

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Canadian Stroke Best Practice Recommendations for Acute Stroke Management: Prehospital, Emergency Department, and Acute Inpatient Stroke Care, 6th Edition, Update 2018

JM Boulanger, M. Patrice Lindsay, G Gubitz, EE Smith et autres

The 2018 update of the Canadian Stroke Best Practice Recommendations for Acute Stroke Management, 6th edition, is a comprehensive summary of current evidence-based recommendations, appropriate for use by healthcare providers and system planners caring for persons with very recent symptoms of acute …

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[18F]-Fluorodeoxyglucose PET/CT imaging as a marker of carotid plaque inflammation: Comparison to immunohistology and relationship to acuity of events

Myra S. Cocker, J. David Spence, Robert R Hammond, Robert A. deKemp et autres

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