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May 2022; 9 (3) Views & ReviewsOpen Access

Diagnosis and Management of Opsoclonus-Myoclonus-Ataxia Syndrome in Children

An International Perspective

Thomas Rossor, View ORCID ProfileE. Ann Yeh, View ORCID ProfileYasmin Khakoo, View ORCID ProfilePaola Angelini, View ORCID ProfileCheryl Hemingway, View ORCID ProfileSarosh R. Irani, View ORCID ProfileGudrun Schleiermacher, View ORCID ProfileParamala Santosh, Tim Lotze, Russell C. Dale, Kumaran Deiva, View ORCID ProfileBarbara Hero, Andrea Klein, View ORCID ProfilePedro de Alarcon, Mark P. Gorman, Wendy G. Mitchell, View ORCID ProfileMing Lim
First published March 8, 2022, DOI: https://doi.org/10.1212/NXI.0000000000001153
Thomas Rossor
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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  • For correspondence: trossor@nhs.net
E. Ann Yeh
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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  • ORCID record for E. Ann Yeh
  • For correspondence: ann.yeh@sickkids.ca
Yasmin Khakoo
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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  • ORCID record for Yasmin Khakoo
  • For correspondence: khakooy@mskcc.org
Paola Angelini
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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  • ORCID record for Paola Angelini
  • For correspondence: paola.angelini@nhs.net
Cheryl Hemingway
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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  • ORCID record for Cheryl Hemingway
  • For correspondence: cheryl.hemingway@gosh.nhs.uk
Sarosh R. Irani
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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  • ORCID record for Sarosh R. Irani
  • For correspondence: sarosh.irani@ndcn.ox.ac.uk
Gudrun Schleiermacher
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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  • ORCID record for Gudrun Schleiermacher
  • For correspondence: gudrun.schleiermacher@curie.fr
Paramala Santosh
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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  • ORCID record for Paramala Santosh
  • For correspondence: paramala.1.santosh@kcl.ac.uk
Tim Lotze
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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  • For correspondence: tlotze@bcm.edu
Russell C. Dale
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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  • For correspondence: russell.dale@health.nsw.gov.au
Kumaran Deiva
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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Barbara Hero
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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Andrea Klein
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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Pedro de Alarcon
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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  • For correspondence: pdealarc@uic.edu
Mark P. Gorman
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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  • For correspondence: mark.gorman@childrens.harvard.edu
Wendy G. Mitchell
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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  • For correspondence: wmitchell@chla.usc.edu
Ming Lim
From the Children's Neurosciences (T.R., M.L.), Evelina London Children's Hospital at Guy's and St Thomas' NHS Foundation Trust, King's Health Partners Academic Health Science Centre; Department Women and Children's Health (T.R., M.L.), School of Life Course Sciences (SoLCS), King's College London, UK; Division of Neurology (E.A.Y.), Department of Pediatrics, Neurosciences and Mental Health (RI), The Hospital for Sick Children; Faculty of Medicine (E.A.Y.), The University of Toronto, Ontario, Canada; Department of Pediatrics (Y.K.) and Department of Neurology (Y.K.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Pediatrics (Y.K.), Weill Medical College of Cornell University, New York; Children and Young People's Unit (Paola Angelini), The Royal Marsden, Downs Road, Sutton, Surrey; UCL Great Ormond Street Institute of Child Health (C.H.), Department of Neurology, Great Ormond Street Hospital for Children, London; Oxford Autoimmune Neurology Group (S.R.I.), Nuffield Department of Clinical Neurosciences, University of Oxford; Department of Neurology (S.R.I.), Oxford University Hospitals NHS Foundation Trust, UK; SiRIC RTOP (G.S.), Translational Research Department, PSL Research University, Institut Curie Research Center; INSERM U830 (G.S.), PSL Research University, Institut Curie Research Center; SIREDO Center: Care (G.S.), Innovation and Research for Children, Adolescents and Young Adults with Cancer, Institut Curie, Paris, France; Department of Child and Adolescent Psychiatry (P.S.), King's College London; Centre for Interventional Paediatric Psychopharmacology and Rare Diseases (CIPPRD) Research Team (P.S.), South London and Maudsley NHS Foundation Trust, London, UK; Baylor College of Medicine (T.L.), Texas Children's Hospital, Houston; Kids Neuroscience Centre (R.C.D.), The Children's Hospital at Westmead, Westmead, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery (R.C.D.), The Children's Hospital at Westmead; The Children's Hospital at Westmead Clinical School (R.C.D.), Faculty of Medicine, University of Sydney, NSW, Australia; Pediatric Neurology Department (K.D.), Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital; National Referral Center for Rare Inflammatory and Auto-Immune Brain and Spinal Diseases (K.D.); Inserm UMR 1184 (K.D.), Immunology of Viral Infections and Autoimmune Diseases, CEA, IDMIT, Le Kremlin Bicêtre, France; Department of Pediatric Hematology and Oncology (B.H.), University Children's Hospital, Koln; Division of Child Neurology (A.K.), University Children's Hospital Bern Inselspital, University of Bern; Department of Pediatric Neurology (A.K.), University Children's Hospital Basel, Switzerland; Department of Pediatrics (Pedro de Alarcon), University of Illinois College of Medicine at Peoria, Peoria IL; Department of Neurology (M.P.G.), Boston Children's Hospital, Harvard Medical School, MA; Division of Neurology (W.G.M.), Department of Pediatrics, Children's Hospital Los Angeles; and Department of Neurology (W.G.M.), Keck School of Medicine at the University of Southern California, Los Angeles.
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Full PDF
Citation
Diagnosis and Management of Opsoclonus-Myoclonus-Ataxia Syndrome in Children
An International Perspective
Thomas Rossor, E. Ann Yeh, Yasmin Khakoo, Paola Angelini, Cheryl Hemingway, Sarosh R. Irani, Gudrun Schleiermacher, Paramala Santosh, Tim Lotze, Russell C. Dale, Kumaran Deiva, Barbara Hero, Andrea Klein, Pedro de Alarcon, Mark P. Gorman, Wendy G. Mitchell, Ming Lim
Neurol Neuroimmunol Neuroinflamm May 2022, 9 (3) e1153; DOI: 10.1212/NXI.0000000000001153

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Abstract

Background and Objectives Opsoclonus-myoclonus-ataxia syndrome (OMAS) is a rare disorder of the nervous system that classically presents with a combination of characteristic eye movement disorder and myoclonus, in addition to ataxia, irritability, and sleep disturbance. There is good evidence that OMAS is an immune-mediated condition that may be paraneoplastic in the context of neuroblastoma. This syndrome may be associated with long-term cognitive impairment, yet it remains unclear how this is influenced by disease course and treatment. Treatment is largely predicated on immune suppression, but there is limited evidence to indicate an optimal regimen.

Methods Following an international multiprofessional workshop in 2004, a body of clinicians and scientists comprising the International OMS Study group continued to meet biennially in a joint professionals and family workshop focusing on pediatric OMAS. Seventeen years after publication of the first report, a writing group was convened to provide a clinical update on the definitions and clinical presentation of OMAS, biomarkers and the role of investigations in a child presenting with OMAS, treatment and management strategies including identification and support of long-term sequelae.

Results The clinical criteria for diagnosis were reviewed, with a proposed approach to laboratory and radiologic investigation of a child presenting with possible OMAS. The evidence for an upfront vs escalating treatment regimen was reviewed, and a treatment algorithm proposed to recognize both these approaches. Importantly, recommendations on monitoring of immunotherapy response and longer-term follow-up based on an expert consensus are provided.

Discussion OMAS is a rare neurologic condition that can be associated with poor cognitive outcomes. This report proposes an approach to investigation and treatment of children presenting with OMAS, based on expert international opinion recognizing the limited data available.

Glossary

ACTH=
adrenocorticotropic hormone;
ADS=
acquired demyelinating syndrome;
IVIg=
IV immunoglobulin;
MIBG=
meta-iodo-benzyl-guanidine scan;
OMA=
opsoclonus-myoclonus-ataxia;
OMAS=
opsoclonus-myoclonus-ataxia syndrome;
OMS=
opsoclonus-myoclonus syndrome;
OS=
overall survival

Footnotes

  • Go to Neurology.org/NN for full disclosures. Funding information is provided at the end of the article.

  • The Article Processing Charge was funded by the authors.

  • OMS Study Group coinvestigators are listed in the appendix at the end of the article.

  • Received November 4, 2021.
  • Accepted in final form January 18, 2022.
  • Copyright © 2022 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND), which permits downloading and sharing the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

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  • Article
    • Abstract
    • Glossary
    • Background, Definitions, and Clinical Presentation
    • Immunopathogenesis
    • Investigating the Child Presenting With OMAS
    • Treatment of Associated Peripheral Neuroblastic Tumors
    • Immune Treatment Strategies in OMAS
    • The Long-term Outcome and Management of OMAS
    • Restarting Immunizations in Patients With OMAS
    • Summary
    • Study Funding
    • Disclosure
    • Acknowledgment
    • Appendix 1 Authors
    • Appendix 2 Coinvestigators
    • Footnotes
    • References
  • Figures & Data
  • Info & Disclosures

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Topics Discussed

  • All Pediatric
  • All Immunology
  • Autoimmune diseases
  • Paraneoplastic syndrome

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