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Younce JR, Cascella RH, Berman BD, Jinnah HA, Bellows S, Feuerstein J, Wagle Shukla A, Mahajan A, Chang FCF, Duque KR, Reich S, Richardson SP, Deik A, Stover N, Luna JM, Norris SA. Anatomical categorization of isolated non-focal dystonia: novel and existing patterns using a data-driven approach. Dystonia 2023; 2:11305. [PMID: 37920445 PMCID: PMC10621194 DOI: 10.3389/dyst.2023.11305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
According to expert consensus, dystonia can be classified as focal, segmental, multifocal, and generalized, based on the affected body distribution. To provide an empirical and data-driven approach to categorizing these distributions, we used a data-driven clustering approach to compare frequency and co-occurrence rates of non-focal dystonia in pre-defined body regions using the Dystonia Coalition (DC) dataset. We analyzed 1,618 participants with isolated non-focal dystonia from the DC database. The analytic approach included construction of frequency tables, variable-wise analysis using hierarchical clustering and independent component analysis (ICA), and case-wise consensus hierarchical clustering to describe associations and clusters for dystonia affecting any combination of eighteen pre-defined body regions. Variable-wise hierarchical clustering demonstrated closest relationships between bilateral upper legs (distance = 0.40), upper and lower face (distance = 0.45), bilateral hands (distance = 0.53), and bilateral feet (distance = 0.53). ICA demonstrated clear grouping for the a) bilateral hands, b) neck, and c) upper and lower face. Case-wise consensus hierarchical clustering at k = 9 identified 3 major clusters. Major clusters consisted primarily of a) cervical dystonia with nearby regions, b) bilateral hand dystonia, and c) cranial dystonia. Our data-driven approach in a large dataset of isolated non-focal dystonia reinforces common segmental patterns in cranial and cervical regions. We observed unexpectedly strong associations between bilateral upper or lower limbs, which suggests that symmetric multifocal patterns may represent a previously underrecognized dystonia subtype.
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Affiliation(s)
- J. R. Younce
- Department of Neurology and Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - R. H. Cascella
- School of Medicine, Washington University, St. Louis, MO, United States
| | - B. D. Berman
- Department of Neurology, Virginia Commonwealth University, Richmond, VA, United States
| | - H. A. Jinnah
- Department of Neurology, Emory University, Atlanta, GA, United States
- Department of Human Genetics, Emory University, Atlanta, GA, United States
| | - S Bellows
- Department of Neurology, Baylor College of Medicine, Houston, TX, United States
| | - J. Feuerstein
- Department of Neurology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - A. Wagle Shukla
- Department of Neurology, University of Florida, Gainesville, FL, United States
| | - A. Mahajan
- Rush Parkinson’s Disease and Movement Disorders Program, Rush University Medical Center, Chicago, IL, United States
| | - F. C. F. Chang
- Movement Disorders Unit, Neurology Department, Westmead Hospital & Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - K. R. Duque
- James J. and Joan A. Gardner Family Center for Parkinson’s Disease and Movement Disorders, Department of Neurology, University of Cincinnati, Cincinnati, OH, United States
| | - S. Reich
- Department of Neurology, University of Maryland, Baltimore, MD, United States
| | - S. Pirio Richardson
- Department of Neurology, University of New Mexico and New Mexico VA Healthcare System, Albuquerque, NM, United States
| | - A. Deik
- Parkinson Disease and Movement Disorders Center, Department of Neurology, University of Pennsylvania, Philadelphia, PA, United States
| | - N. Stover
- Department of Neurology, Heersink School of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - J. M. Luna
- Department of Radiology, School of Medicine, Washington University, St. Louis, MO, United States
| | - S. A. Norris
- Department of Radiology, School of Medicine, Washington University, St. Louis, MO, United States
- Department of Neurology, School of Medicine, Washington University, St. Louis, MO, United States
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Thomas E, Walker H, Middlebrooks E, Fiveash J, Nicholas A, Popple R, Sung V, Stover N, Standaert D, Guthrie B, Bredel M. Frameless MLC-Based Radiosurgical Thalamotomies on the Modern Linear Accelerator Platform ― Prospective Phase I/II Clinical Trial Results. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Young S, Hollingdale J, Absoud M, Bolton P, Branney P, Colley W, Craze E, Dave M, Deeley Q, Farrag E, Gudjonsson G, Hill P, Liang HL, Murphy C, Mackintosh P, Murin M, O'Regan F, Ougrin D, Rios P, Stover N, Taylor E, Woodhouse E. Guidance for identification and treatment of individuals with attention deficit/hyperactivity disorder and autism spectrum disorder based upon expert consensus. BMC Med 2020; 18:146. [PMID: 32448170 PMCID: PMC7247165 DOI: 10.1186/s12916-020-01585-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 04/03/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Individuals with co-occurring hyperactivity disorder/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) can have complex presentations that may complicate diagnosis and treatment. There are established guidelines with regard to the identification and treatment of ADHD and ASD as independent conditions. However, ADHD and ASD were not formally recognised diagnostically as co-occurring conditions until the Diagnostic and Statistical Manual of Mental Disorders 5 (DSM-5) was published in 2013. Hence, awareness and understanding of both conditions when they co-occur is less established and there is little guidance in the clinical literature. This has led to uncertainty among healthcare practitioners when working with children, young people and adults who present with co-existing ADHD and ASD. The United Kingdom ADHD Partnership (UKAP) therefore convened a meeting of professional experts that aimed to address this gap and reach expert consensus on the topic that will aid healthcare practitioners and allied professionals when working with this complex and vulnerable population. METHOD UK experts from multiple disciplines in the fields of ADHD and ASD convened in London in December 2017. The meeting provided the opportunity to address the complexities of ADHD and ASD as a co-occurring presentation from different perspectives and included presentations, discussion and group work. The authors considered the clinical challenges of working with this complex group of individuals, producing a consensus for a unified approach when working with male and female, children, adolescents and adults with co-occurring ADHD and ASD. This was written up, circulated and endorsed by all authors. RESULTS The authors reached a consensus of practical recommendations for working across the lifespan with males and females with ADHD and ASD. Consensus was reached on topics of (1) identification and assessment using rating scales, clinical diagnostic interviews and objective supporting assessments; outcomes of assessment, including standards of clinical reporting; (2) non-pharmacological interventions and care management, including psychoeducation, carer interventions/carer training, behavioural/environmental and Cognitive Behavioural Therapy (CBT) approaches; and multi-agency liaison, including educational interventions, career advice, occupational skills and training, and (3) pharmacological treatments. CONCLUSIONS The guidance and practice recommendations (Tables 1, 4, 5, 7, 8 and 10) will support healthcare practitioners and allied professionals to meet the needs of this complex group from a multidisciplinary perspective. Further research is needed to enhance our understanding of the diagnosis, treatment and management of individuals presenting with comorbid ADHD and ASD.
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Affiliation(s)
| | - Jack Hollingdale
- South London & Maudsley NHS Foundation Trust, Service for Complex Autism and Associated Neurodevelopmental Disorders, London, UK
| | - Michael Absoud
- Department of Children's Neurosciences, Evelina London Children's Hospital, Guy's and St Thomas' NHS Foundation Trust, London, UK.,Department of Women & Children's Health, King's College, London, UK
| | - Patrick Bolton
- South London & Maudsley NHS Foundation Trust, Service for Complex Autism and Associated Neurodevelopmental Disorders, London, UK
| | | | | | - Emily Craze
- South London & Maudsley NHS Foundation Trust, National Autism Unit, Kent, UK
| | - Mayuri Dave
- Positive Behaviour, Learning Disability, Autism and Mental Health Service (PALMS) Hertfordshire Communication Disorders Clinics, Hertfordshire Community NHS Trust, St Albans, UK
| | - Quinton Deeley
- South London & Maudsley NHS Foundation Trust, National Autism Unit, Kent, UK
| | - Emad Farrag
- South London & Maudsley NHS Foundation Trust, Maudsley Health, Abu Dhabi, UAE
| | - Gisli Gudjonsson
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | | | | | - Clodagh Murphy
- Behavioural and Developmental Psychiatry Clinical Academic Group, Behavioural Genetics Clinic, National Adult Autism and ADHD Service, South London and Maudsley Foundation NHS Trust, London, UK.,Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Peri Mackintosh
- South London & Maudsley NHS Foundation Trust, National Autism Unit, Kent, UK
| | | | | | - Dennis Ougrin
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Patricia Rios
- Diagnostic Assessments and Treatment Services (DATS), Hertfordshire, UK
| | | | - Eric Taylor
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Emma Woodhouse
- Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
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