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Tsivgoulis G, Wilson D, Katsanos AH, Sargento-Freitas J, Marques-Matos C, Azevedo E, Adachi T, von der Brelie C, Aizawa Y, Abe H, Tomita H, Okumura K, Hagii J, Seiffge DJ, Lioutas VA, Traenka C, Varelas P, Basir G, Krogias C, Purrucker JC, Sharma VK, Rizos T, Mikulik R, Sobowale OA, Barlinn K, Sallinen H, Goyal N, Yeh SJ, Karapanayiotides T, Wu TY, Vadikolias K, Ferrigno M, Hadjigeorgiou G, Houben R, Giannopoulos S, Schreuder FHBM, Chang JJ, Perry LA, Mehdorn M, Marto JP, Pinho J, Tanaka J, Boulanger M, Al-Shahi Salman R, Jäger HR, Shakeshaft C, Yakushiji Y, Choi PMC, Staals J, Cordonnier C, Jeng JS, Veltkamp R, Dowlatshahi D, Engelter ST, Parry-Jones AR, Meretoja A, Mitsias PD, Alexandrov AV, Ambler G, Werring DJ. Neuroimaging and clinical outcomes of oral anticoagulant-associated intracerebral hemorrhage. Ann Neurol 2018; 84:694-704. [PMID: 30255970 DOI: 10.1002/ana.25342] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 09/13/2018] [Accepted: 09/14/2018] [Indexed: 01/11/2023]
Abstract
OBJECTIVE Whether intracerebral hemorrhage (ICH) associated with non-vitamin K antagonist oral anticoagulants (NOAC-ICH) has a better outcome compared to ICH associated with vitamin K antagonists (VKA-ICH) is uncertain. METHODS We performed a systematic review and individual patient data meta-analysis of cohort studies comparing clinical and radiological outcomes between NOAC-ICH and VKA-ICH patients. The primary outcome measure was 30-day all-cause mortality. All outcomes were assessed in multivariate regression analyses adjusted for age, sex, ICH location, and intraventricular hemorrhage extension. RESULTS We included 7 eligible studies comprising 219 NOAC-ICH and 831 VKA-ICH patients (mean age = 77 years, 52.5% females). The 30-day mortality was similar between NOAC-ICH and VKA-ICH (24.3% vs 26.5%; hazard ratio = 0.94, 95% confidence interval [CI] = 0.67-1.31). However, in multivariate analyses adjusting for potential confounders, NOAC-ICH was associated with lower admission National Institutes of Health Stroke Scale (NIHSS) score (linear regression coefficient = -2.83, 95% CI = -5.28 to -0.38), lower likelihood of severe stroke (NIHSS > 10 points) on admission (odds ratio [OR] = 0.50, 95% CI = 0.30-0.84), and smaller baseline hematoma volume (linear regression coefficient = -0.24, 95% CI = -0.47 to -0.16). The two groups did not differ in the likelihood of baseline hematoma volume < 30cm3 (OR = 1.14, 95% CI = 0.81-1.62), hematoma expansion (OR = 0.97, 95% CI = 0.63-1.48), in-hospital mortality (OR = 0.73, 95% CI = 0.49-1.11), functional status at discharge (common OR = 0.78, 95% CI = 0.57-1.07), or functional status at 3 months (common OR = 1.03, 95% CI = 0.75-1.43). INTERPRETATION Although functional outcome at discharge, 1 month, or 3 months was comparable after NOAC-ICH and VKA-ICH, patients with NOAC-ICH had smaller baseline hematoma volumes and less severe acute stroke syndromes. Ann Neurol 2018;84:702-712.
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Affiliation(s)
- Georgios Tsivgoulis
- Second Department of Neurology, Attikon University Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece.,Department of Neurology, University of Tennessee Health Science Center, Memphis, TN
| | - Duncan Wilson
- Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Institute of Neurology and National Hospital for Neurology and Neurosurgery, London, United Kingdom, New Zealand Brain Research Institute, Christchurch, New Zealand
| | - Aristeidis H Katsanos
- Second Department of Neurology, Attikon University Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece.,Department of Neurology, University of Ioannina School of Medicine, Ioannina, Greece
| | - João Sargento-Freitas
- Department of Neurology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.,Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Cláudia Marques-Matos
- Department of Neurology, São João University Hospital Center, Porto, Portugal.,Department of Clinical Neurosciences and Mental Health, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Elsa Azevedo
- Department of Neurology, São João University Hospital Center, Porto, Portugal.,Department of Clinical Neurosciences and Mental Health, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Tomohide Adachi
- Department of Neurology and General Internal Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | | | - Yoshifusa Aizawa
- Department of Research and Development, Tachikawa Medical Center, Nagaoka, Japan
| | - Hiroshi Abe
- Department of Research and Development, Tachikawa Medical Center, Nagaoka, Japan
| | - Hirofumi Tomita
- Department of Cardiology and Department of Hypertension and Stroke Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ken Okumura
- Advanced Arrhythmia Therapeutic Branch, Division of Cardiology, Saiseikai Kumamoto Hospital Cardiovascular Center, Kumamoto, Japan
| | - Joji Hagii
- Hirosaki Stroke and Rehabilitation Center, Hirosaki, Japan
| | - David J Seiffge
- Stroke Center and Neurology, University Hospital and University of Basel, Basel, Switzerland
| | | | - Christopher Traenka
- Stroke Center and Neurology, University Hospital and University of Basel, Basel, Switzerland
| | | | - Ghazala Basir
- Ottawa Hospital Research Institute and University of Ottawa, Ottawa, Ontario, Canada
| | - Christos Krogias
- Department of Neurology, St Josef Hospital, Ruhr University Bochum, Bochum, Germany
| | - Jan C Purrucker
- Department of Neurology, Heidelberg University Hospital, Heidelberg, Germany
| | - Vijay K Sharma
- Division of Neurology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Timolaos Rizos
- Department of Neurology, Heidelberg University Hospital, Heidelberg, Germany
| | - Robert Mikulik
- International Clinical Research Center and Neurology Department, St Anne's Hospital and Masaryk University, Brno, Czech Republic
| | - Oluwaseun A Sobowale
- Division of Cardiovascular Sciences, School of Medical Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Kristian Barlinn
- Department of Neurology, Dresden Neurovascular Center, Dresden, Germany
| | - Hanne Sallinen
- Department of Neurology, Helsinki University Hospital, Helsinki, Finland
| | - Nitin Goyal
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN
| | - Shin-Joe Yeh
- Stroke Center and Department of Neurology, National Taiwan University Hospital, Taiwan
| | - Theodore Karapanayiotides
- Second Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Teddy Y Wu
- Department of Neurology, Christchurch Hospital, Christchurch, New Zealand
| | | | - Marc Ferrigno
- Department of Neurology, Lille University, INSERM U1171, Degenerative and Vascular Cognitive Disorders, CHU Lille, Lille, France
| | | | - Rik Houben
- Department of Neurology, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Sotirios Giannopoulos
- Department of Neurology, University of Ioannina School of Medicine, Ioannina, Greece
| | - Floris H B M Schreuder
- Department of Neurology, Maastricht University Medical Center, Maastricht, the Netherlands.,Department of Neurology, Donders Institute for Brain, Cognition, and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Jason J Chang
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN
| | - Luke A Perry
- Department of Neurosciences, Eastern Health, Melbourne, Victoria, Australia
| | - Maximilian Mehdorn
- Department of Neurosurgery, Georg August University of Göttingen, Göttingen, Germany
| | - João-Pedro Marto
- Neurology Department, Egas Moniz Hospital, West Lisbon Hospital Center, Lisbon, Portugal.,CEDOC, Nova Medical School, New University of Lisbon, Lisbon, Portugal
| | - João Pinho
- Department of Neurology, Braga Hospital, Braga, Portugal
| | - Jun Tanaka
- Division of Neurology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Marion Boulanger
- Centre for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Rustam Al-Shahi Salman
- Centre for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Hans R Jäger
- Neuroradiological Academic Unit, Department of Brain Repair and Rehabilitation, Institute of Neurology, University College London, London, United Kingdom
| | - Clare Shakeshaft
- Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Institute of Neurology and National Hospital for Neurology and Neurosurgery, London, United Kingdom, New Zealand Brain Research Institute, Christchurch, New Zealand
| | - Yusuke Yakushiji
- Division of Neurology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Philip M C Choi
- Department of Neurosciences, Eastern Health, Melbourne, Victoria, Australia
| | - Julie Staals
- Department of Neurology, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Charlotte Cordonnier
- Department of Neurology, Lille University, INSERM U1171, Degenerative and Vascular Cognitive Disorders, CHU Lille, Lille, France
| | - Jiann-Shing Jeng
- Stroke Center and Department of Neurology, National Taiwan University Hospital, Taiwan
| | - Roland Veltkamp
- Division of Brain Sciences, Department of Stroke Medicine, Imperial College London, United Kingdom
| | - Dar Dowlatshahi
- Ottawa Hospital Research Institute and University of Ottawa, Ottawa, Ontario, Canada
| | - Stefan T Engelter
- Stroke Center and Neurology, University Hospital and University of Basel, Basel, Switzerland.,Neurorehabilitation Unit, University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Basel, Switzerland
| | - Adrian R Parry-Jones
- Division of Cardiovascular Sciences, School of Medical Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Atte Meretoja
- Department of Neurology, Helsinki University Hospital, Helsinki, Finland.,Department of Medicine and Neurology at Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria, Australia
| | - Panayiotis D Mitsias
- Department of Neurology, Henry Ford Hospital, Detroit, MI.,Department of Neurology, School of Medicine, University of Crete, Crete, Greece
| | - Andrei V Alexandrov
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN
| | - Gareth Ambler
- Department of Statistical Science, University College London, London, United Kingdom
| | - David J Werring
- Stroke Research Centre, Department of Brain Repair and Rehabilitation, University College London Institute of Neurology and National Hospital for Neurology and Neurosurgery, London, United Kingdom, New Zealand Brain Research Institute, Christchurch, New Zealand
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Imaging features and safety and efficacy of endovascular stroke treatment: a meta-analysis of individual patient-level data. Lancet Neurol 2018; 17:895-904. [DOI: 10.1016/s1474-4422(18)30242-4] [Citation(s) in RCA: 213] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 11/29/2022]
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S, Deshmukh V, Sasadeusz K, Vincent F, Thiesing JT, Putnam J, Bhatt A, Kansara A, Caceves D, Lowenkopf T, Yanase L, Zurasky J, Dancer S, Freeman B, Scheibe-Mirek T, Robison J, Rontal A, Roll J, Clark D, Rodriguez M, Fitzsimmons BFM, Zaidat O, Lynch JR, Lazzaro M, Larson T, Padmore L, Das E, Farrow-Schmidt A, Hassan A, Tekle W, Cate C, Jansen O, Cnyrim C, Wodarg F, Wiese C, Binder A, Riedel C, Rohr A, Lang N, Laufs H, Krieter S, Remonda L, Diepers M, Añon J, Nedeltchev K, Kahles T, Biethahn S, Lindner M, Chang V, Gächter C, Esperon C, Guglielmetti M, Arenillas Lara JF, Martínez Galdámez M, Calleja Sanz AI, Cortijo Garcia E, Garcia Bermejo P, Perez S, Mulero Carrillo P, Crespo Vallejo E, Ruiz Piñero M, Lopez Mesonero L, Reyes Muñoz FJ, Brekenfeld C, Buhk JH, Krützelmann A, Thomalla G, Cheng B, Beck C, Hoppe J, Goebell E, Holst B, Grzyska U, Wortmann G, Starkman S, Duckwiler G, Jahan R, Rao N, Sheth S, Ng K, Noorian A, Szeder V, Nour M, McManus M, Huang J, Tarpley J, Tateshima S, Gonzalez N, Ali L, Liebeskind D, Hinman J, Calderon-Arnulphi M, Liang C, Guzy J, Koch S, DeSousa K, Gordon-Perue G, Haussen D, Elhammady M, Peterson E, Pandey V, Dharmadhikari S, Khandelwal P, Malik A, Pafford R, Gonzalez P, Ramdas K, Andersen G, Damgaard D, Von Weitzel-Mudersbach P, Simonsen C, Ruiz de Morales Ayudarte N, Poulsen M, Sørensen L, Karabegovich S, Hjørringgaard M, Hjort N, Harbo T, Sørensen K, Deshaies E, Padalino D, Swarnkar A, Latorre JG, Elnour E, El-Zammar Z, Villwock M, Farid H, Balgude A, Cross L, Hansen K, Holtmannspötter M, Kondziella D, Hoejgaard J, Taudorf S, Soendergaard H, Wagner A, Cronquist M, Stavngaard T, Cortsen M, Krarup LH, Hyldal T, Haring HP, Guggenberger S, Hamberger M, Trenkler J, Sonnberger M, Nussbaumer K, Dominger C, Bach E, Jagadeesan BD, Taylor R, Kim J, Shea K, Tummala R, Zacharatos H, Sandhu D, Ezzeddine M, Grande A, Hildebrandt D, Miller K, Scherber J, Hendrickson A, Jumaa M, Zaidi S, Hendrickson T, Snyder V, Killer-Oberpfalzer M, Mutzenbach J, Weymayr F, Broussalis E, Stadler K, Jedlitschka A, Malek A, Mueller-Kronast N, Beck P, Martin C, Summers D, Day J, Bettinger I, Holloway W, Olds K, Arkin S, Akhtar N, Boutwell C, Crandall S, Schwartzman M, Weinstein C, Brion B, Prothmann S, Kleine J, Kreiser K, Boeckh-Behrens T, Poppert H, Wunderlich S, Koch ML, Biberacher V, Huberle A, Gora-Stahlberg G, Knier B, Meindl T, Utpadel-Fischler D, Zech M, Kowarik M, Seifert C, Schwaiger B, Puri A, Hou S. Effect of general anaesthesia on functional outcome in patients with anterior circulation ischaemic stroke having endovascular thrombectomy versus standard care: a meta-analysis of individual patient data. Lancet Neurol 2018; 17:47-53. [DOI: 10.1016/s1474-4422(17)30407-6] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/05/2017] [Accepted: 10/11/2017] [Indexed: 10/18/2022]
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Wilson D, Seiffge DJ, Traenka C, Basir G, Purrucker JC, Rizos T, Sobowale OA, Sallinen H, Yeh SJ, Wu TY, Ferrigno M, Houben R, Schreuder FHBM, Perry LA, Tanaka J, Boulanger M, Al-Shahi Salman R, Jäger HR, Ambler G, Shakeshaft C, Yakushiji Y, Choi PMC, Staals J, Cordonnier C, Jeng JS, Veltkamp R, Dowlatshahi D, Engelter ST, Parry-Jones AR, Meretoja A, Werring DJ. Outcome of intracerebral hemorrhage associated with different oral anticoagulants. Neurology 2017; 88:1693-1700. [PMID: 28381513 PMCID: PMC5409844 DOI: 10.1212/wnl.0000000000003886] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 01/18/2017] [Indexed: 11/15/2022] Open
Abstract
Objective: In an international collaborative multicenter pooled analysis, we compared mortality, functional outcome, intracerebral hemorrhage (ICH) volume, and hematoma expansion (HE) between non–vitamin K antagonist oral anticoagulation–related ICH (NOAC-ICH) and vitamin K antagonist–associated ICH (VKA-ICH). Methods: We compared all-cause mortality within 90 days for NOAC-ICH and VKA-ICH using a Cox proportional hazards model adjusted for age; sex; baseline Glasgow Coma Scale score, ICH location, and log volume; intraventricular hemorrhage volume; and intracranial surgery. We addressed heterogeneity using a shared frailty term. Good functional outcome was defined as discharge modified Rankin Scale score ≤2 and investigated in multivariable logistic regression. ICH volume was measured by ABC/2 or a semiautomated planimetric method. HE was defined as an ICH volume increase >33% or >6 mL from baseline within 72 hours. Results: We included 500 patients (97 NOAC-ICH and 403 VKA-ICH). Median baseline ICH volume was 14.4 mL (interquartile range [IQR] 3.6–38.4) for NOAC-ICH vs 10.6 mL (IQR 4.0–27.9) for VKA-ICH (p = 0.78). We did not find any difference between NOAC-ICH and VKA-ICH for all-cause mortality within 90 days (33% for NOAC-ICH vs 31% for VKA-ICH [p = 0.64]; adjusted Cox hazard ratio (for NOAC-ICH vs VKA-ICH) 0.93 [95% confidence interval (CI) 0.52–1.64] [p = 0.79]), the rate of HE (NOAC-ICH n = 29/48 [40%] vs VKA-ICH n = 93/140 [34%] [p = 0.45]), or functional outcome at hospital discharge (NOAC-ICH vs VKA-ICH odds ratio 0.47; 95% CI 0.18–1.19 [p = 0.11]). Conclusions: In our international collaborative multicenter pooled analysis, baseline ICH volume, hematoma expansion, 90-day mortality, and functional outcome were similar following NOAC-ICH and VKA-ICH.
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Affiliation(s)
- Duncan Wilson
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - David J Seiffge
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Christopher Traenka
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Ghazala Basir
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Jan C Purrucker
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Timolaos Rizos
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Oluwaseun A Sobowale
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Hanne Sallinen
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Shin-Joe Yeh
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Teddy Y Wu
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Marc Ferrigno
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Rik Houben
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Floris H B M Schreuder
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Luke A Perry
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Jun Tanaka
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Marion Boulanger
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Rustam Al-Shahi Salman
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Hans R Jäger
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Gareth Ambler
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Clare Shakeshaft
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Yusuke Yakushiji
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Philip M C Choi
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Julie Staals
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Charlotte Cordonnier
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Jiann-Shing Jeng
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Roland Veltkamp
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Dar Dowlatshahi
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Stefan T Engelter
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Adrian R Parry-Jones
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - Atte Meretoja
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland
| | - David J Werring
- From the Stroke Research Center (D.W., C.S., D.J.W.) and Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, Institute of Neurology, and Department of Statistical Science (G.A.), UCL, London, UK; Stroke Center and Neurology (D.J.S., C.T., S.T.E.), University Hospital Basel, University of Basel, Switzerland; Ottawa Hospital Research Institute and University of Ottawa (G.B., D.D.), Canada; Department of Neurology (J.C.P., T.R.), Heidelberg University Hospital, Germany; Manchester Academic Health Sciences Center (O.A.S., A.R.P.-J.), Salford Royal NHS Foundation Trust, UK; Department of Neurology (H.S., A.M.), Helsinki University Hospital, Finland; Stroke Center & Department of Neurology (S.-J.Y., J.-S.J.), Department of Neurology, National Taiwan University Hospital, Taipei; Department of Medicine and neurology at the Royal Melbourne Hospital (T.Y.W., A.M.), University of Melbourne, Parkville, Australia; U1171-Degenerative & Vascular Cognitive Disorders (M.F., C.C.), Univ Lille, Inserm, CHU Lille, France; Department of Neurology (R.H., F.H.B.M.S., J.S.), Maastricht University Medical Center, the Netherlands; Department of Neurosciences (J.A.P., P.M.C.C.), Eastern Health, Melbourne, Australia; Division of Neurology, Department of Internal Medicine (J.T., Y.Y.), Saga University Faculty of Medicine, Japan; Division of Clinical Neurosciences (M.B., R.A.-S.S.), Center for Clinical Brain Sciences, School of Clinical Sciences, University of Edinburgh; Department of Stroke Medicine, Division of Brain Sciences (R.V.), Imperial College London, UK; and Neurorehabilitation Unit (S.T.E.), University of Basel and University Center for Medicine of Aging, Felix Platter Hospital, Switzerland.
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Basir G, Shamy M, Stotts G, Dowlatshahi D. Abstract WP359: Incidence and Outcome of Direct Oral Anticoagulant-related Intracranial Bleeding. Stroke 2016. [DOI: 10.1161/str.47.suppl_1.wp359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
In recent years, direct oral anticoagulants (DOAC) have been approved and included in guidelines as alternatives to warfarin for the prevention of stroke in patients with non-valvular atrial fibrillation, in part due to because of better safety profile. Prior to the introduction of DOACs, studies showed that anticoagulation with warfarin carries high risk of bleeding. The goal of this study is to examine the incidence of DOAC- related intracranial bleeding (ICB) in a single center retrospective registry of patients admitted with bleeding events.
Methods:
This is a single Centre observational/descriptive study. We identified consecutive patients presenting to a tertiary care stroke center in Ottawa, Canada between Oct 2010-Feb2015 with any bleeding event using ICD-10 criteria. We included patients taking DOACs at the time of admission, and abstracted demographic, clinical, laboratory and outcome data from the medical record.
Results:
From a total of 9291 patient presenting with hemorrhage, 100 patients were confirmed to be taking DOACs. Twenty two (22%) patients had ICB (mean age 83years), of whom 6 (27%) were taking Aspirin at time of bleeding. There were 4 intraparenchymal hemorrhages (IPH); (3 spontaneous and 1 traumatic) and the remaining 18 were traumatic SAH and SDH. All patients with ICB were on Dabigatran except one which was on Rivaroxaban. Five of them required reversal agents; 2 received PCC and 3 both PCC and activated PCC. Mean length of stay was 14 days and 12 were discharged to home, 3 to rehabilitation facility, 3 to long term care facility and 4 died. All 4 patients with IPH either died or discharged to long-term care
Conclusion:
In this descriptive retrospective study, spontaneous DOAC-related IPH was rare and outcomes following traumatic DOAC-related ICB appear better than spontaneous IPH
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Ahmad A, Sharma VK, Basir G, Khan K, Alexandrov AV, Tsivgoulis G, Shuaib A, Saqqur M. Abstract W MP24: Modified Tibi (Thrombolysis in Brain Ischemia) Grading System for Assessment of Abnormal Residual Flow at Site of Intracranial Occlusion in Acute Ischemic Stroke. Stroke 2014. [DOI: 10.1161/str.45.suppl_1.wmp24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and purpose:
The intracranial blood flow at the site of arterial occlusion in acute ischemic stroke can be measured with Transracial Doppler (TCD) using the Thrombolysis in Brain Ischemia (TIBI) grading system. The TIBI ranges from 0 to 5, where 0 no flow and 5 normal flow. Our study’s aim is to modify the TIBI grading system in order to make it simple to implement in an acute stroke setting.
METHODS:
We classified Modified TIBI grading as: Grade 0- no flow, Grade 1- Bad flow: there is systolic flow but no diastolic flow or systolic flow with delayed acceleration and diastolic flow, Grade 2-Good flow: normal upstroke systolic flow and diastolic flow with decreased mean flow velocity compared to contralateral vessel by 30 %. We used the clotbust database to evaluate the modified TIBI scoring system. Poor long-term outcome was defined as modified rankin scale (MRS) score > 2.
RESULTS:
Total of 369 patients with acute ischemic stroke and intracranial arterial occlusion received IV r TPA. Median age was 71 years (IQ range: 58.7-79), Sex: women: 170(46.1%). Median NIHSS was 16 (IQ range: 12.7-2), 17/98 (17.3%) patients with modified TIBI 0, 73/205(35.6%) with modified TIBI 1 and 31/66( 47%) with modified TIBI 2 had achieved complete recanalization ( p value=0001). The multiple logistic regression model revealed Baseline higher NIHSS, systolic BP, glucose and modified TIBI grade 0 were independent negative predictor of complete recanalization. Patients with modified TIBI 3 had high probability of complete recanalization compared to TIBI 0(OR 3.14, CI 95%: 1.4-6.8, P=0.004).Poor outcome at 3 months (MRS>2) was found in 46/75(61.3%) patients with modified TIBI 0, 94/170(55.3%) with modified TIBI 1 and 19/38(33.3%) with modified TIBI 2(P value <0.004). On logistic model age, baseline NIHSS, glucose and TIBI 0 were independent negative predictors of good outcome.Although statistically insignificant but patients with modified TIBI 3 had a trend towards high probability of good functional outcome (OR: 1.73, CI 95%:0.73-4.12, p=0.20).
CONCLUSION:
Modified TIBI grading system is simplified version of TIBI grading and is easy to understand and apply clinically. It also predicts reliably the recanalization and functional outcome.
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Affiliation(s)
- Aftab Ahmad
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine, National Univ Health System, Singapore, SingaporeMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaNeurology, Univ of Alabama Hosp, Birmingham, AL, Neurology, Univ of Athens, Athens, Greece
| | - Vijay K Sharma
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine, National Univ Health System, Singapore, SingaporeMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaNeurology, Univ of Alabama Hosp, Birmingham, AL, Neurology, Univ of Athens, Athens, Greece
| | - Ghazala Basir
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine, National Univ Health System, Singapore, SingaporeMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaNeurology, Univ of Alabama Hosp, Birmingham, AL, Neurology, Univ of Athens, Athens, Greece
| | - Khurshid Khan
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine, National Univ Health System, Singapore, SingaporeMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaNeurology, Univ of Alabama Hosp, Birmingham, AL, Neurology, Univ of Athens, Athens, Greece
| | - Andrei V Alexandrov
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine, National Univ Health System, Singapore, SingaporeMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaNeurology, Univ of Alabama Hosp, Birmingham, AL, Neurology, Univ of Athens, Athens, Greece
| | - Georgios Tsivgoulis
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine, National Univ Health System, Singapore, SingaporeMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaNeurology, Univ of Alabama Hosp, Birmingham, AL, Neurology, Univ of Athens, Athens, Greece
| | - Ashfaq Shuaib
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine, National Univ Health System, Singapore, SingaporeMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaNeurology, Univ of Alabama Hosp, Birmingham, AL, Neurology, Univ of Athens, Athens, Greece
| | - Maher Saqqur
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine, National Univ Health System, Singapore, SingaporeMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaNeurology, Univ of Alabama Hosp, Birmingham, AL, Neurology, Univ of Athens, Athens, Greece
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Ghrooda EM, Dobrowolski P, Basir G, Yaseen I, khan N, Ahmad A, Hasan M, GulamHusain S, Mohammad A, SHUAIB A. Abstract 25: Paroxysmal Atrial Fibrillation is Common in Patients With Defined Etiology for Stroke: Prolonged Monitoring of Cardiac Rhythm for Detection of Atrial Fibrillation After a Cerebral Ischemic Event (PEAACE) Study. Stroke 2014. [DOI: 10.1161/str.45.suppl_1.25] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction:
Atrial fibrillation (AF) related cardioembolic stroke accounts for over 20% of ischemic stroke. Recent reports using prolonged cardiac rhythm monitoring (PCRM) in cryptogenic stroke reveal paroxysmal AF (PAF) in an additional 20% of patients. We report our findings with PCRM in patients with and without cryptogenic stroke patients in whom an initial 24-h Holter was negative.
Methods:
Patients admitted to the stroke service with no previous history of AF and no AF on Holter monitoring were enrolled for 3 weeks of PCRM. We used a PAF predictive score to determine the risk of the arrhythmia. All studies were interpreted by the stroke team prior to final review by the cardiologist.
Results:
Between Sept 2012 and June 2013, 96 patients were evaluated. Over all PAF was diagnoses in 37.5 % of patients. PAF was diagnosed in 32% of patients with cryptogenic stroke and 36 % of patients where an additional etiology may account for the stroke diagnosis. The AF prediction score was not useful in the recognition of patients that were more likely to be at risk for AF. 96 of 98 recordings were correctly identified by the stroke team prior to final diagnosis by the cardiologist.
Interpretation:
PAF is more common in stroke patients than was previously suspected. It occurs with similar frequency in patients with and without cryptogenic stroke. Our data strongly supports the need for prolonged cardiac rhythm monitoring in all stroke patients to diagnose this important preventable cause of ischemic stroke.
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Affiliation(s)
| | | | | | | | - Nazim khan
- STROKE PROGRAM, Univ of Alberta, Edmonton, Canada
| | - Aftab Ahmad
- STROKE PROGRAM, Univ of Alberta, Edmonton, Canada
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Basir G, Shuaib A, Tahir A, Qureshi K, Zeeshan H, Khan K, Buck B. Abstract W P339: Anticoagulation Remains Underutilized in the Management of Atrial Fibrillation: Results From the Edmonton Registry of Atrial Fibrillation and StrokE (ERASE) Study. Stroke 2014. [DOI: 10.1161/str.45.suppl_1.wp339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Since 2010, three novel oral anticoagulants (NOAC) have been approved and included in the guidelines as alternatives to warfarin for the prevention of stroke in patients with non-valvular atrial fibrillation (NVAF). Prior to the introduction of NOACs, studies showed that anticoagulation with warfarin in stroke patients with NVAF is suboptimal with as few as 40% anticoagulated and most subtherapeutic. The goal of this study is to examine anticoagulation usage in a contemporary prospective registry of TIA/stroke patients with NVAF and determine whether the introduction of NOACs has increased anticoagulation usage.
Methods:
This is an ongoing single centre observational study. Consecutive TIA/ischemic stroke admissions (2012-13) to a tertiary hospital in Edmonton, Canada with NVAF were enrolled. Data regarding demographic, clinical, antithrombotic treatment and laboratory parameters were collected in a prospectively maintained database. Those with previously diagnosed NVAF were included in the present analysis (149/181). Clinical characteristics were compared between patients on anticoagulants and those on other/no antithrombotic therapy.
Results:
The 149 included patients had a mean (SD) age of 78.7 (10.0) years. Male were 52.3% and 86.6% (129) had a preadmission CHADS2 score ≥2. At the time of TIA/stroke, 51% (76/149) were on an anticoagulant, 24.2% (36/149) on antiplatelet agents and 28.4% (37/149) were on no antithrombotic therapy. Of the 76 patients on anticoagulants, 81.6% were on warfarin and the remaining (18.4%) were on a NOAC. Only 31% of patients on warfarin had a therapeutic INR at the time of stroke. Patients not anticoagulated had a similar frequency of prior stroke (21% vs. 23%; p=0.80) but tended to have a lower CHADS2 score (p=0.082) than those anticoagulated. In patients with CHADS≥2, 47% were not on an anticoagulant.
Conclusions:
Despite therapeutic advances in the treatment of NVAF, anticoagulation usage in TIA/stroke patients with preexisting NVAF remains suboptimal. In this study, only 53% of patients with NVAF and a CHADS≥2 were treated with anticoagulants. This study emphasizes the need for increased efforts to encourage prescribing of oral anticoagulants in high-risk individuals.
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Affiliation(s)
| | | | - Affan Tahir
- Neurology, Univ Of Alberta, Edmonton, Canada
| | | | | | | | - Brian Buck
- Neurology, Univ Of Alberta, Edmonton, Canada
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Ahmad A, Khan K, Basir G, Derksen C, Shuaib A, Siddiqui M, Rizvi N, Saqqur M. Abstract T P354: The Role of Lindegaard Ratio on TCD for Predicting Angiographic Vasospasm Following Aneurysmal Subarachnoid Haemorrhage. Stroke 2014. [DOI: 10.1161/str.45.suppl_1.tp354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and objective:
Middle cerebral artery (MCA) Lindegaard ratio (LR) has been used as indicator of moderate to severe vasospasm (VSP) following subarachnoid hemorrhage (SAH). However there have been many criticisms about the ability to detect impending vasospasm using Transcranial Doppler (TCD). The purpose of this study was to determine the correlation between TCD Mean Flow Velocities (MFV) and angiographic VSP after aneurysmal SAH using LR of several anterior circulation vessels.
Methods:
The study population included prospective collected data of 134 patients with aneurysmal SAH admitted to University of Alberta hospital from January 2006 to December 2008. Complete TCD was performed daily from day 2 to 14 from symptoms onset. All patients underwent cerebral angiography on admission and within 7 days following onset of symptoms. The M1, M2 MCA, ACA and intracranial ICA/ipsilateral extra cranial ICA velocity ratios (LR) were calculated and correlation was made with the presence of angiographic vasospasm (defined as more than one-third luminal narrowing). Then, anterior circulation LR was defined as the highest LR in the ipsilateral anterior circulation arteries. Moderate to severe VSP was defined as LR > 3.
Results:
Results are shown in table.
The probability of VSP in the presence of one anterior circulation vessel LR > 3 is 14 % (2/14), 2 vessels LR >3 (4/16. 16 %), 3 vessels LR > 3 (3/6, 50 %) and 4 vessels LR >3 (5/5 = 100 %). (P< 0.001)
Conclusion:
LR of M2 MCA has higher sensitivity compared to other vessels and ACA LR has less sensitivity but more specificity whereas the rest of anterior circulation LR had modest predictive value. The likelihood of VSP increases as more number of vessels in anterior circulation shows LR>3. LR should not be interpreted in a blind fashion to the rest of TCD MFV numbers.
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Affiliation(s)
- Aftab Ahmad
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaUniv Of Alberta Hosp, Edmonton, Canada
| | - Khurshid Khan
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaUniv Of Alberta Hosp, Edmonton, Canada
| | - Ghazala Basir
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaUniv Of Alberta Hosp, Edmonton, Canada
| | - Carol Derksen
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaUniv Of Alberta Hosp, Edmonton, Canada
| | - Ashfaq Shuaib
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaUniv Of Alberta Hosp, Edmonton, Canada
| | - Muzaffar Siddiqui
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaUniv Of Alberta Hosp, Edmonton, Canada
| | - Nasir Rizvi
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaUniv Of Alberta Hosp, Edmonton, Canada
| | - Maher Saqqur
- Medicine/Neurology, Univ Of Alberta Hosp, Edmonton, CanadaMedicine/Neurology, Univ of Alberta Hosp, Edmonton, CanadaUniv Of Alberta Hosp, Edmonton, Canada
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Ahmad A, Derksen C, Ghrooda E, Basir G, Khan K, Shuaib A, Saqqur M. Abstract T P31: Microembolus (MES) Detection by TCD in Acute Stroke Service. Stroke 2014. [DOI: 10.1161/str.45.suppl_1.tp31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and purpose:
One of the main applications of TCD in acute stroke is microembolic signal (MES) detection. Both Spectral display and M-mode can be used to detect MES using validated criteria published previously. MES is reported to be an independent risk factor for stroke. Our study’s aim is to evaluate the yield of TCD MES in an acute stroke service and if this correlate with stroke’s mechanism and recurrence of stroke.
Methods:
We did analysis of all stroke and TIA patients who were evaluated in the University of Alberta Hospital between jan2006- July 2013. The clinical information was collected from charts and TCD studies for MES detection were reviewed by Neurologists certified by American Society of Neuroimaging using validated criteria. All cases had bilateral TCD monitoring of MCA /ACA or PCA vessels. The positive emboli on spectrogram was defined based on the consensus criteria and the M mode one based on our previous published criteria. Positive MES TCD monitoring was defined by the presence of ≥1 MES on either hemisphere.
RESULTS:
49 /455 patients(10.7%) were MES positive. Mean age was 54.7(StD ±20), Gender: 33/49( 67.3%)were male, Median duration of monitoring was 50minutes( interquartile range 27.5-60), the indication was TIA in 16/49( 32.7%) acute ischemic stroke in 32/49(65.3%) subarachnoid hemorrhage in 1/49(2%), 36/49( 73.5%) presented with motor weakness 4/49( 8.2%) with isolated vision disturbances, 45/49(91.9%) patients had anterior circulation related symptoms, whereas 4/49(8.2%) had posterior circulation related symptoms,17/49(34.7%) showed acute infarct on imaging 6/49(12.2%) showed both acute and chronic infarcts and 3/49(6.1%) showed chronic infarcts only, 12/49(24.5%) showed infarcts in multiple vessels territories, TOAST: 20/49(40.8%) had large vessel atherosclerosis(LVA), 14/49(28.6%)had cardioembolic(CE) cause, 8/49(16.3%) had other determined etiology and 7/49(14.3%) had cryptogenic stroke, 7/49(14.3%) had recurrent stroke and 1/49(2%) had recurrent TIA. Total no of MES in anterior circulation were 324.
CONCLUSION:
Our study showed that 1 out of every 10 patients with acute ischemic stroke or TIA showed positive micro embolic signal on TCD monitoring. The high yield was mainly seen in LVA and CE stroke.
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Affiliation(s)
- Aftab Ahmad
- MEDICINE/ Neurology, Univ of Alberta Hosp, Edmonton, Canada
| | - Carol Derksen
- MEDICINE/ Neurology, Univ of Alberta Hosp, Edmonton, Canada
| | | | - Ghazala Basir
- MEDICINE/ Neurology, Univ of Alberta Hosp, Edmonton, Canada
| | - Khurshid Khan
- MEDICINE/ Neurology, Univ of Alberta Hosp, Edmonton, Canada
| | - Ashfaq Shuaib
- MEDICINE/ Neurology, Univ of Alberta Hosp, Edmonton, Canada
| | - Maher Saqqur
- MEDICINE/ Neurology, Univ of Alberta Hosp, Edmonton, Canada
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