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Bakker MK, Kanning JP, Abraham G, Martinsen AE, Winsvold BS, Zwart JA, Bourcier R, Sawada T, Koido M, Kamatani Y, Morel S, Amouyel P, Debette S, Bijlenga P, Berrandou T, Ganesh SK, Bouatia-Naji N, Jones G, Bown M, Rinkel GJ, Veldink JH, Ruigrok YM. Genetic Risk Score for Intracranial Aneurysms: Prediction of Subarachnoid Hemorrhage and Role in Clinical Heterogeneity. Stroke 2023; 54:810-818. [PMID: 36655558 PMCID: PMC9951795 DOI: 10.1161/strokeaha.122.040715] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 11/17/2020] [Accepted: 11/28/2022] [Indexed: 01/20/2023]
Abstract
BACKGROUND Recently, common genetic risk factors for intracranial aneurysm (IA) and aneurysmal subarachnoid hemorrhage (ASAH) were found to explain a large amount of disease heritability and therefore have potential to be used for genetic risk prediction. We constructed a genetic risk score to (1) predict ASAH incidence and IA presence (combined set of unruptured IA and ASAH) and (2) assess its association with patient characteristics. METHODS A genetic risk score incorporating genetic association data for IA and 17 traits related to IA (so-called metaGRS) was created using 1161 IA cases and 407 392 controls from the UK Biobank population study. The metaGRS was validated in combination with risk factors blood pressure, sex, and smoking in 828 IA cases and 68 568 controls from the Nordic HUNT population study. Furthermore, we assessed association between the metaGRS and patient characteristics in a cohort of 5560 IA patients. RESULTS Per SD increase of metaGRS, the hazard ratio for ASAH incidence was 1.34 (95% CI, 1.20-1.51) and the odds ratio for IA presence 1.09 (95% CI, 1.01-1.18). Upon including the metaGRS on top of clinical risk factors, the concordance index to predict ASAH hazard increased from 0.63 (95% CI, 0.59-0.67) to 0.65 (95% CI, 0.62-0.69), while prediction of IA presence did not improve. The metaGRS was statistically significantly associated with age at ASAH (β=-4.82×10-3 per year [95% CI, -6.49×10-3 to -3.14×10-3]; P=1.82×10-8), and location of IA at the internal carotid artery (odds ratio=0.92 [95% CI, 0.86-0.98]; P=0.0041). CONCLUSIONS The metaGRS was predictive of ASAH incidence, although with limited added value over clinical risk factors. The metaGRS was not predictive of IA presence. Therefore, we do not recommend using this metaGRS in daily clinical care. Genetic risk does partly explain the clinical heterogeneity of IA warranting prioritization of clinical heterogeneity in future genetic prediction studies of IA and ASAH.
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Affiliation(s)
- Mark K. Bakker
- Department of Neurology and Neurosurgery, University Medical Center Utrecht Brain Center, Utrecht University, the Netherlands (M.K.B., J.P.K., G.J.E.R., Y.M.R., J.H.V.)
| | - Jos P. Kanning
- Department of Neurology and Neurosurgery, University Medical Center Utrecht Brain Center, Utrecht University, the Netherlands (M.K.B., J.P.K., G.J.E.R., Y.M.R., J.H.V.)
| | - Gad Abraham
- Cambridge Baker Systems Genomics Initiative, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia (G.A.)
- Department of Clinical Pathology, University of Melbourne, Parkville, VIC, Australia (G.A.)
| | - Amy E. Martinsen
- Department of Research and Innovation, Division of Clinical Neuroscience, Oslo University Hospital, Norway (A.E.M., B.S.W., J.-A.Z.)
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Norway (A.E.M., J.-A.Z.)
- K.G. Jebsen Center for Genetic Epidemiology, Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Trondheim, Norway (A.E.M., B.S.W., J.-A.Z.)
| | - Bendik S. Winsvold
- K.G. Jebsen Center for Genetic Epidemiology, Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Trondheim, Norway (A.E.M., B.S.W., J.-A.Z.)
- Department of Neurology, Oslo University Hospital, Norway (B.S.W.)
| | - John-Anker Zwart
- Department of Research and Innovation, Division of Clinical Neuroscience, Oslo University Hospital, Norway (A.E.M., B.S.W., J.-A.Z.)
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Norway (A.E.M., J.-A.Z.)
- K.G. Jebsen Center for Genetic Epidemiology, Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Trondheim, Norway (A.E.M., B.S.W., J.-A.Z.)
| | - Romain Bourcier
- Université de Nantes, CHU Nantes, INSERM, CNRS, l’institut du thorax, France (R.B.)
- CHU Nantes, Department of Neuroradiology, France (R.B.)
| | - Tomonobu Sawada
- Graduate School of Frontier Sciences, The University of Tokyo, Japan (T.S., Y.K.)
| | - Masaru Koido
- Laboratory for Statistical and Translational Genetics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan (M.K.)
- Department of Cancer Biology, Institute of Medical Science, The University of Tokyo, Japan (M.K.)
| | - Yoichiro Kamatani
- Graduate School of Frontier Sciences, The University of Tokyo, Japan (T.S., Y.K.)
| | - Sandrine Morel
- Neurosurgery Division, Department of Clinical Neurosciences, Faculty of Medicine, Geneva University Hospitals, Switzerland (P.B., S.M.)
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Switzerland (S.M.)
| | - Philippe Amouyel
- LabEx DISTALZ-U1167, RID-AGE-Risk Factors and Molecular Determinants of Aging-Related Diseases, University of Lille, Lille, France; Inserm U1167, Lille, France; Centre Hospitalier Universitaire Lille, Lille, France; Institut Pasteur de Lille, Lille, France (P.A.)
| | - Stéphanie Debette
- University of Bordeaux, INSERM, Bordeaux Population Health Center, UMR1219, Bordeaux, France (S.D.)
- Bordeaux University Hospital, Department of Neurology, Institute of Neurodegenerative Diseases, France (S.D.)
| | - Philippe Bijlenga
- Neurosurgery Division, Department of Clinical Neurosciences, Faculty of Medicine, Geneva University Hospitals, Switzerland (P.B., S.M.)
| | | | - Santhi K. Ganesh
- Division of Cardiovascular Medicine, Department of Internal Medicine (S.K.G.), University of Michigan Medical School, Ann Arbor
- Department of Human Genetics (S.K.G.), University of Michigan Medical School, Ann Arbor
| | | | - Gregory Jones
- Department of Surgery, University of Otago, Dunedin, New Zealand (G.J.)
| | - Matthew Bown
- Department of Cardiovascular Sciences and National Institute for Health Research (M.B.)
- Leicester Biomedical Research Centre (M.B.)
- University of Leicester, Glenfield Hospital, United Kingdom (M.B.)
| | - Gabriel J.E. Rinkel
- Department of Neurology and Neurosurgery, University Medical Center Utrecht Brain Center, Utrecht University, the Netherlands (M.K.B., J.P.K., G.J.E.R., Y.M.R., J.H.V.)
| | - Jan H. Veldink
- Department of Neurology and Neurosurgery, University Medical Center Utrecht Brain Center, Utrecht University, the Netherlands (M.K.B., J.P.K., G.J.E.R., Y.M.R., J.H.V.)
| | - Ynte M. Ruigrok
- Department of Neurology and Neurosurgery, University Medical Center Utrecht Brain Center, Utrecht University, the Netherlands (M.K.B., J.P.K., G.J.E.R., Y.M.R., J.H.V.)
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Zuurbier CCM, Mensing LA, Wermer MJH, Juvela S, Lindgren AE, Koivisto T, Jääskeläinen JE, Yamazaki T, Molenberg R, van Dijk JMC, Uyttenboogaart M, Aalbers M, Morita A, Tominari S, Arai H, Nozaki K, Murayama Y, Ishibashi T, Takao H, Rinkel GJE, Greving JP, Ruigrok YM. Difference in Rupture Risk Between Familial and Sporadic Intracranial Aneurysms: An Individual Patient Data Meta-analysis. Neurology 2021; 97:e2195-e2203. [PMID: 34670818 DOI: 10.1212/wnl.0000000000012885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 09/20/2021] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND AND OBJECTIVES We combined individual patient data (IPD) from prospective cohorts of patients with unruptured intracranial aneurysms (UIAs) to assess to what extent patients with familial UIA have a higher rupture risk than those with sporadic UIA. METHODS For this IPD meta-analysis, we performed an Embase and PubMed search for studies published up to December 1, 2020. We included studies that (1) had a prospective study design; (2) included 50 or more patients with UIA; (3) studied the natural course of UIA and risk factors for aneurysm rupture including family history for aneurysmal subarachnoid haemorrhage and UIA; and (4) had aneurysm rupture as an outcome. Cohorts with available IPD were included. All studies included patients with newly diagnosed UIA visiting one of the study centers. The primary outcome was aneurysmal rupture. Patients with polycystic kidney disease and moyamoya disease were excluded. We compared rupture rates of familial vs sporadic UIA using a Cox proportional hazard regression model adjusted for PHASES score and smoking. We performed 2 analyses: (1) only studies defining first-degree relatives as parents, children, and siblings and (2) all studies, including those in which first-degree relatives are defined as only parents and children, but not siblings. RESULTS We pooled IPD from 8 cohorts with a low and moderate risk of bias. First-degree relatives were defined as parents, siblings, and children in 6 cohorts (29% Dutch, 55% Finnish, 15% Japanese), totaling 2,297 patients (17% familial, 399 patients) with 3,089 UIAs and 7,301 person-years follow-up. Rupture occurred in 10 familial cases (rupture rate: 0.89%/person-year; 95% confidence interval [CI] 0.45-1.59) and 41 sporadic cases (0.66%/person-year; 95% CI 0.48-0.89); adjusted hazard ratio (HR) for familial cases 2.56 (95% CI 1.18-5.56). After adding the 2 cohorts excluding siblings as first-degree relatives, resulting in 9,511 patients, the adjusted HR was 1.44 (95% CI 0.86-2.40). DISCUSSION The risk of rupture of UIA is 2.5 times higher, with a range from a 1.2 to 5 times higher risk, in familial than in sporadic UIA. When assessing the risk of rupture in UIA, family history should be taken into account.
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Affiliation(s)
- Charlotte C M Zuurbier
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Liselore A Mensing
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Marieke J H Wermer
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Seppo Juvela
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Antti E Lindgren
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Timo Koivisto
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Juha E Jääskeläinen
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Tomosato Yamazaki
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Rob Molenberg
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - J Marc C van Dijk
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Maarten Uyttenboogaart
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Marlien Aalbers
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Akio Morita
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Shinjiro Tominari
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Hajime Arai
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Kazuhiko Nozaki
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Yuichi Murayama
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Toshihiro Ishibashi
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Hiroyuki Takao
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Gabriel J E Rinkel
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Jacoba P Greving
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan
| | - Ynte M Ruigrok
- From the Department of Neurology and Neurosurgery, UMC Utrecht Brain Center (C.C.M.Z., L.A.M., G.J.E.R., Y.M.R.), and Julius Centre for Health Sciences and Primary Care (J.P.G.), University Medical Center Utrecht; Department of Neurology (M.J.H.W.), Leiden University Medical Center, the Netherlands; Department of Clinical Neurosciences (S.J.), University of Helsinki; Neurosurgery of NeuroCenter (A.E.L., T.K., J.E.J.), University of Eastern Finland, Kuopio, Finland; Department of Neurosurgery (T.Y.), National Hospital Organization, Mito Medical Center, Japan; Departments of Neurosurgery (R.M., J.M.C.v.D., M.U., M.A.), University Medical Center Groningen, the Netherlands; University of Tokyo-Nippon Medical School (A.M.); Department of Health Informatics, School of Public Health (S.T.), Kyoto University; Department of Neurosurgery (H.A.), Juntendo University Medical School, Tokyo; Department of Neurosurgery (K.N.), Shiga University of Medical Science; and Department of Endovascular Neurosurgery (Y.M., T.I., H.T.), Tokyo Jikei University School of Medicine, Japan.
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