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Connors MH, Kinder J, Swift E, Kanaan RA, Sachdev PS, Mohan A. Functional neurological disorder clinics in Australasia: A binational survey. J Clin Neurosci 2024; 126:80-85. [PMID: 38852427 DOI: 10.1016/j.jocn.2024.05.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 05/30/2024] [Accepted: 05/31/2024] [Indexed: 06/11/2024]
Abstract
BACKGROUND Functional neurological symptom disorder (FND) is characterised by neurological symptoms that are incompatible with recognised neurological or medical conditions. The condition is common in neurology clinics and causes significant morbidity, though timely access to specialist care is difficult. We sought to characterise the availability and clinical practice of specialist FND clinics across Australia and New Zealand. METHODS Clinicians or coordinators involved in running specialist FND clinics were identified through clinical contacts with further recruitment by snowball sampling and contacting patient organisations. All clinics completed a survey about details of service delivery, including clinical model, referral sources, criteria, demand, staffing, interventions, clinical data collection, and funding. RESULTS We identified 16 clinics across Australia and New Zealand. Of these, 12 were in capital cities and four were in regional centres. Three of these focused on paediatric patients and 13 focused on adults. Clinics varied in their clinical model, referral sources, criteria, staffing, interventions, data collection, and funding. Most clinics reported challenges related to coping with demand and obtaining adequate funding. CONCLUSION FND clinics in Australia and New Zealand appear to be concentrated predominantly in metropolitan areas and vary considerably in their referral sources, clinical data collection, and models of care. Reported challenges in meeting demand indicate a need for greater resources. The heterogeneity across clinics suggests a need to harmonise clinical standards to facilitate access to evidence-based care.
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Affiliation(s)
- Michael H Connors
- Centre for Healthy Brain Ageing, UNSW Sydney, Sydney, NSW, Australia; Neuropsychiatric Institute, Prince of Wales Hospital, Sydney, NSW, Australia
| | - Jessica Kinder
- Mental Health Services, Royal Prince Alfred Hospital, Sydney, NSW, Australia; Central Clinical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Emily Swift
- Centre for Healthy Brain Ageing, UNSW Sydney, Sydney, NSW, Australia
| | - Richard A Kanaan
- Department of Psychiatry, University of Melbourne, Austin Health, Melbourne, Victoria, Australia
| | - Perminder S Sachdev
- Centre for Healthy Brain Ageing, UNSW Sydney, Sydney, NSW, Australia; Neuropsychiatric Institute, Prince of Wales Hospital, Sydney, NSW, Australia
| | - Adith Mohan
- Centre for Healthy Brain Ageing, UNSW Sydney, Sydney, NSW, Australia; Neuropsychiatric Institute, Prince of Wales Hospital, Sydney, NSW, Australia.
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2
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Berg L, Pringsheim TM, Lerario M, Martino D. Psychological Factors Associated with Functional Tic-like Behaviours during the COVID-19 Pandemic. Res Child Adolesc Psychopathol 2024; 52:1157-1172. [PMID: 38427218 DOI: 10.1007/s10802-024-01184-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Abstract
Functional tic-like behaviours (FTLB) are a female predominant functional neurological disorder that escalated in incidence during the SARS CoV2 pandemic. This study compared social and adaptive functioning, social media use, pandemic experiences, and psychiatric comorbidities between FTLB (n = 35), Tourette Syndrome (TS) (n = 22), and neurotypical (NT) (n = 25) participants ages 11 to 25 years. The psychiatric comorbidity burden for participants with FTLB was formidable, with frequencies ranging from 1.5 to 10 times higher for major depressive disorder and panic disorder compared to TS and NT participants. Borderline personality disorder (BPD), agoraphobia, social anxiety disorder, and generalized anxiety disorder were also significantly more common in FTLB compared to NT participants. Vulnerable attachment scores, social phobia and social interaction anxiety symptoms were higher in participants with FTLB than NT but not TS. Overall distress tolerance, resilient coping, suggestibility, hours on social media, and exposure to tic and TS content were not significantly different between groups. FTLB participants rated their mental health declined more severely during the pandemic than both TS and NT participants and were more likely to experience trouble sleeping, loneliness, and difficulty affording housing and food than NT participants. Participants with FTLB were significantly more likely to identify as gender minority people than TS and NT, though there were no significant differences based on gender identity in the study variables within the FTLB group. The association and potential pathways explaining how psychiatric disorders may be contributing to FTLB, and why certain groups appear at particular risk are discussed.
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Affiliation(s)
- Lindsay Berg
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, AB, T2N 4N1, Canada
| | - Tamara M Pringsheim
- Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences, University of Calgary, Calgary, AB, Canada
- Mathison Centre for Mental Health Research and Education, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | | | - Davide Martino
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, AB, T2N 4N1, Canada.
- Mathison Centre for Mental Health Research and Education, Calgary, AB, Canada.
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
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3
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Park JE. Functional Movement Disorders: Updates and Clinical Overview. J Mov Disord 2024; 17:251-261. [PMID: 38950896 PMCID: PMC11300393 DOI: 10.14802/jmd.24126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 06/15/2024] [Accepted: 07/01/2024] [Indexed: 07/03/2024] Open
Abstract
Functional movement disorder (FMD) is a type of functional neurological disorder that is common but often difficult to diagnose or manage. FMD can present as various phenotypes, including tremor, dystonia, myoclonus, gait disorders, and parkinsonism. Conducting a clinical examination appropriate for assessing a patient with suspected FMD is important, and various diagnostic testing maneuvers may also be helpful. Treatment involving a multidisciplinary team, either outpatient or inpatient, has been found to be most effective. Examples of such treatment protocols are also discussed in this review. While recognition and understanding of the disorder has improved over the past few decades, as well as the development of treatments, it is not uncommon for patients and physicians to continue to experience various difficulties when dealing with this disorder. In this review, I provide a practical overview of FMD and discuss how the clinical encounter itself can play a role in patients' acceptance of the diagnosis. Recent neuroimaging studies that aid in understanding the pathophysiology are also discussed.
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Affiliation(s)
- Jung E Park
- Department of Neurology, Dongguk University Ilsan Hospital, Goyang, Korea
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4
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Sireci F, Ragucci F, Menozzi C, Cabboi MP, Picchetto L, Bassi MC, Ghirotto L, Cavallieri F, Pedroni C, Valzania F. Exploring therapeutic interventions for functional neurological disorders: a comprehensive scoping review. J Neurol 2024; 271:3908-3927. [PMID: 38775932 DOI: 10.1007/s00415-024-12441-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 07/10/2024]
Abstract
Functional Neurological Disorders (FNDs) are characterized by the symptoms experienced by the individuals but also by how they express personal experiences and concerns related to the clinical condition. Access to care programs for functional neurological symptoms appears challenging and may entail circular, self-perpetuating healthcare pathways. Given the challenging and misleading interpretations around FND, in advocating for care pathways beyond medical therapies, we designed a scoping review to map recently suggested practices and interventions. We identified 31 relevant papers published between January 2018 and December 2022. Most of the literature was gathered from the US and UK healthcare experiences, with documented interventions provided by multi-professional teams or stand-alone psychotherapists. We found different care pathways addressing either motor or non-motor manifestations. Persons with Functional Motor Disorder are more likely to be referred to physical therapy first, while Persons suffering from Non-Epileptic Seizures are to mental health services. A narrow focus was given to minor components of multimodal approaches (e.g. social workers, and occupational therapists). High heterogeneity was found between assessment instruments as well, reflecting different perspectives in selecting treatment outcomes (e.g., reduction of non-epileptic events, psychological functioning, motor symptoms). Among healthcare professionals, neurologists and (neuro)psychiatrists are typically engaged in formulating and delivering diagnoses, while treatment is often administered by physiotherapists and/or psychologists. In the context of FNDs, the complex etiopathological nature of the condition, including comorbidities, suggests the recommendation of multidisciplinary treatments adopting a stepped care model progressing from standard to higher level individualized modules may better suit individual complexities.
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Affiliation(s)
- Francesca Sireci
- Neurology Unit, Neuromotor and Rehabilitation Department, Azienda USL-IRCCS di Reggio Emilia, Viale Risorgimento 80, 42123, Reggio Emilia, Italy
| | - Federica Ragucci
- Neurology Unit, Neuromotor and Rehabilitation Department, Azienda USL-IRCCS di Reggio Emilia, Viale Risorgimento 80, 42123, Reggio Emilia, Italy.
| | - Chiara Menozzi
- Primary Care Department, Azienda USL-IRCCS di Reggio Emilia, Viale Risorgimento 80, 42123, Reggio Emilia, Italy
| | - Maria Paola Cabboi
- Neurology Unit, Neuromotor and Rehabilitation Department, Azienda USL-IRCCS di Reggio Emilia, Viale Risorgimento 80, 42123, Reggio Emilia, Italy
| | - Livio Picchetto
- Department of Neuroscience, Neurology Unit, S.Agostino Estense Hospital, Azienda Ospedaliero-Universitaria di Modena, Modena, Italy
| | - Maria Chiara Bassi
- Medical Library, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Luca Ghirotto
- Qualitative Research Unit, Scientific Directorate, Azienda USL-IRCCS di Reggio Emilia, Viale Umberto I, 50, 42123, Reggio Emilia, Italy
| | - Francesco Cavallieri
- Neurology Unit, Neuromotor and Rehabilitation Department, Azienda USL-IRCCS di Reggio Emilia, Viale Risorgimento 80, 42123, Reggio Emilia, Italy
| | - Cristina Pedroni
- Direzione Delle Professioni Sanitarie, Azienda USL-IRCCS di Reggio Emilia, Viale Risorgimento 80, 42123, Reggio Emilia, Italy
- Laurea Magistrale in Scienze Infermieristiche e Ostetriche, University of Modena and Reggio Emilia, Reggio Emilia, Italy
| | - Franco Valzania
- Neurology Unit, Neuromotor and Rehabilitation Department, Azienda USL-IRCCS di Reggio Emilia, Viale Risorgimento 80, 42123, Reggio Emilia, Italy
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5
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Ludwig B, Deckert M, Krajnc N, Keritam O, Macher S, Bsteh G, Zulehner G, Thurnher M, Berger T, Seidel S, Willinger U, Rommer P. Reported neurological symptoms after severe acute respiratory syndrome coronavirus type 2 infection: A systematic diagnostic approach. Eur J Neurol 2023; 30:2713-2725. [PMID: 37306533 DOI: 10.1111/ene.15923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 06/08/2023] [Indexed: 06/13/2023]
Abstract
BACKGROUND AND PURPOSE Following increasing demands of patients with suspected neurological symptoms after infection with severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2), the Department of Neurology at the Medical University of Vienna established a new outpatient clinic to systematically assess, diagnose, and document neurological complaints potentially associated with a prior SARS-CoV-2 infection. METHODS The data presented here include prospectively collected 156 outpatients from May 2021 to April 2022. Patients underwent semistandardized interviewing about symptoms with reported onset after SARS-CoV-2 infection, neurological examination, and comprehensive diagnostic workup. RESULTS Reported new onset symptoms after infection included fatigue (77.6%), subjective cognitive impairment (72.4%), headache (47.7%), loss of smell and/or taste (43.2%), and sleep disturbances (42.2%). Most patients had a mild coronavirus disease (COVID-19) disease course (84%) and reported comorbidities (71%), of which the most frequent were psychiatric disorders (34%). Frequency of symptoms was not associated with age, sex, or severity of COVID-19 course. A comprehensive diagnostic workup revealed no neurological abnormalities in the clinical examination, or electrophysiological or imaging assessments in the majority of patients (n = 143, 91.7%). Neuropsychological assessment of a subgroup of patients (n = 28, 17.9%) showed that cognitive impairments in executive functions and attention, anxiety, depression, and somatization symptoms were highly common. CONCLUSIONS In this systematic registry, we identified fatigue, cognitive impairment, and headache as the most frequently reported persisting complaints after SARS-CoV-2 infection. Structural neurological findings were rare. We also suspect a link between the growing burden of the COVID-19 pandemic on personal lives and the increase in reported neurological and psychiatric complaints.
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Affiliation(s)
- Birgit Ludwig
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences & Mental Health, Medical University of Vienna, Vienna, Austria
| | - Matthias Deckert
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences & Mental Health, Medical University of Vienna, Vienna, Austria
| | - Nik Krajnc
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences & Mental Health, Medical University of Vienna, Vienna, Austria
| | - Omar Keritam
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences & Mental Health, Medical University of Vienna, Vienna, Austria
| | - Stefan Macher
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences & Mental Health, Medical University of Vienna, Vienna, Austria
| | - Gabriel Bsteh
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences & Mental Health, Medical University of Vienna, Vienna, Austria
| | - Gudrun Zulehner
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences & Mental Health, Medical University of Vienna, Vienna, Austria
| | - Majda Thurnher
- Section of Neuroradiology and Musculoskeletal Radiology, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Thomas Berger
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences & Mental Health, Medical University of Vienna, Vienna, Austria
| | - Stefan Seidel
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences & Mental Health, Medical University of Vienna, Vienna, Austria
- Rehabilitation Clinic Pirawarth, Bad Pirawarth, Austria
| | - Ulrike Willinger
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences & Mental Health, Medical University of Vienna, Vienna, Austria
| | - Paulus Rommer
- Department of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Center for Clinical Neurosciences & Mental Health, Medical University of Vienna, Vienna, Austria
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6
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Ducroizet A, Zimianti I, Golder D, Hearne K, Edwards M, Nielsen G, Coebergh J. Functional neurological disorder: Clinical manifestations and comorbidities; an online survey. J Clin Neurosci 2023; 110:116-125. [PMID: 36871491 DOI: 10.1016/j.jocn.2023.02.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/02/2023] [Accepted: 02/21/2023] [Indexed: 03/06/2023]
Abstract
Functional Neurological Disorder (FND) is common and is often accompanied by multiple comorbid symptoms and conditions. There have been no large-scale studies exploring the change of its clinical manifestations and comorbidities. We used an online survey to assess FND patient characteristics, changes to fatigue, sleep and pain and comorbid symptoms and diagnoses, as well as treatment strategies. The survey was shared via the charities FND Action and FND Hope. 527 participants were included in the analysis. Most (97.3%) reported experiencing more than one core FND symptom. Many respondents reported associated pain (78.1%), fatigue (78.0%) and sleep disturbances (46.7%) before FND diagnosis which often increased thereafter. Rates of obesity were higher (36.9%) than in the general population. Obesity was associated with increased pain, fatigue and sleep difficulties. There was frequent weight gain after diagnosis. 50.0% of participants reported having other diagnoses prior to FND, while in 43.3% new comorbidities arise after FND diagnosis. Many respondents reported being dissatisfied with their care, expressing a wish for further follow-up from mental health (32.7%) and/or neurological services (44.3%). This large online survey further supports the phenotypic complexity of FND. High rates of pain, fatigue and sleep disturbance exist before diagnosis but monitoring for change is worthwhile. Our study identified major gaps in service provision; we highlight the importance of an open mind regarding change in symptoms; this could aid the early identification and management of co-morbidities, including obesity and migraine, which possibly have a negative impact on FND.
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Affiliation(s)
- Alexandra Ducroizet
- Department of Neurology, Ashford St. Peter's Hospitals NHS Foundation Trust, Chertsey, UK
| | | | | | | | - Mark Edwards
- Institute of Psychiatry, Psychology and Neurosciences, King's College London, UK
| | - Glenn Nielsen
- Neurosciences Research Centre, Molecular and Clinical Sciences Research Institute, St George's, University of London, London, UK; Department of Neurology, St. George's Hospital NHS Foundation Trust, London, UK
| | - Jan Coebergh
- Department of Neurology, Ashford St. Peter's Hospitals NHS Foundation Trust, Chertsey, UK; Neurosciences Research Centre, Molecular and Clinical Sciences Research Institute, St George's, University of London, London, UK; Department of Neurology, St. George's Hospital NHS Foundation Trust, London, UK.
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7
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Alpheis S, Altenmüller E, Scholz DS. Focal Dystonia and the Stress Network: The Role of Stress Vulnerability and Adverse Childhood Experiences in the Development of Musician's Dystonia. ADVANCES IN NEUROBIOLOGY 2023; 31:23-44. [PMID: 37338694 DOI: 10.1007/978-3-031-26220-3_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Musician's dystonia is often described as a neurological disorder, resulting from reduced inhibition in the basal ganglia and the cerebellum and dysfunctional cortical plasticity. However, several studies over the last decades support the hypothesis that psychological factors play an important role in the aetiology of dystonia, contradicting its classification as "purely neurological". Especially adverse childhood experiences (ACEs) such as neglect, maltreatment, or household dysfunction may influence the sensorimotor system, additionally to the impact they have on psychological traits. They are known to alter limbic networks, such as the amygdala, the hippocampus, and the stress response via the hypothalamus-pituitary-adrenal (HPA) axis and might also affect the cortico-striatal-thalamo-cortical loop that is vital for correct motor movement learning. Especially a higher activity of the basolateral amygdala could be important by increasing the consolidation of dysfunctional motor memories in stressful situations.Therefore, this chapter explores how musician's dystonia might be a result of dysfunctional stress-coping mechanisms, additionally to the already established neurological alterations.
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Affiliation(s)
- Stine Alpheis
- Institute of Music Physiology and Musician's Medicine, Hannover University of Music, Drama and Media, Hannover, Germany
| | - Eckart Altenmüller
- Institute of Music Physiology and Musician's Medicine, Hannover University of Music, Drama and Media, Hannover, Germany.
| | - Daniel S Scholz
- Department of Musicians' Health, University of Music Lübeck, Lübeck, Germany
- Department of Neurology, University of Lübeck, Lübeck, Germany
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8
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Fiorio M, Braga M, Marotta A, Villa-Sánchez B, Edwards MJ, Tinazzi M, Barbiani D. Functional neurological disorder and placebo and nocebo effects: shared mechanisms. Nat Rev Neurol 2022; 18:624-635. [PMID: 36075980 DOI: 10.1038/s41582-022-00711-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2022] [Indexed: 11/09/2022]
Abstract
Functional neurological disorder (FND) is characterized by neurological symptoms that cannot be explained by a structural neurological cause. Among the different aetiological models that have been proposed for FND, of note is the Bayesian predictive coding model, which posits that perception relies on top-down cortical predictions (priors) to infer the source of incoming sensory information. This model can also apply to non-pathological experiences, such as placebo and nocebo effects, wherein sensory information is shaped by prior expectations and learning. To date, most studies of the relationship between placebo and nocebo effects and FND have focused on the use of placebos for diagnosis and treatment of FND. Here, we propose that this relationship might go beyond diagnosis and therapy. We develop a framework in which shared cognitive, personality and neuroanatomical factors justify the consideration of a deeper link between FND and placebo and nocebo effects. This new perspective might offer guidance for clarification of the pathogenesis of FND and for the identification of potential biomarkers and therapeutic targets.
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Affiliation(s)
- Mirta Fiorio
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
| | - Miriam Braga
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Angela Marotta
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | | | - Mark J Edwards
- Institute of Molecular and Clinical Sciences, St George's University of London, London, UK
| | - Michele Tinazzi
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Diletta Barbiani
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
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9
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Pepper E, Mohan A, Butcher K, Parsons M, Curtis J. Functional neurological disorders: an Australian interdisciplinary perspective. Med J Aust 2022; 216:501-503. [PMID: 35567388 PMCID: PMC9325360 DOI: 10.5694/mja2.51543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/19/2022] [Accepted: 04/20/2022] [Indexed: 11/20/2022]
Affiliation(s)
| | - Adith Mohan
- Centre for Healthy Brain Ageing (CHeBA) UNSW Sydney Sydney NSW
- Neuropsychiatric Institute Prince of Wales Hospital and Community Health Services Sydney NSW
| | - Kenneth Butcher
- UNSW Sydney Sydney NSW
- Prince of Wales Hospital and Community Health Services Sydney NSW
| | - Mark Parsons
- UNSW Sydney Sydney NSW
- Liverpool Hospital Sydney NSW
| | - Jackie Curtis
- UNSW Sydney Sydney NSW
- Prince of Wales Hospital and Community Health Services Sydney NSW
- Mindgardens Neuroscience Network Sydney NSW
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10
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Kletenik I, Holden SK, Sillau SH, O'Connell N, MacGillivray L, Mack J, Haddock B, Ashworth Dirac M, David AS, Nicholson TR, Attaripour Isfahani SN, Maurer CW, Lidstone SC, Hallett M, LaFaver K, Berman BD, Stone J. Gender disparity and abuse in functional movement disorders: a multi-center case-control study. J Neurol 2022; 269:3258-3263. [PMID: 35098346 PMCID: PMC10202134 DOI: 10.1007/s00415-021-10943-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 12/21/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND To determine gender differences in rates of sexual and physical abuse in functional movement disorders compared to controls and evaluate if the gender disparity of functional movement disorders is associated with abuse history. METHODS We performed a retrospective case-control study of self-reported trauma data from 696 patients (512 women) with functional movement disorders from six clinical sites compared to 141 controls (98 women) and population data. Chi-square was used to assess gender and disorder associations; logistic regression was used to model additive effects of abuse and calculate the attributable fraction of abuse to disorder prevalence. RESULTS Higher rates of sexual abuse were reported by women (35.3%) and men (11.5%) with functional movement disorders compared to controls (10.6% of women; 5.6% of men). History of sexual abuse increased the likelihood of functional movement disorders among women by an odds ratio of 4.57 (95% confidence interval 2.31-9.07; p < 0.0001) and physical abuse by an odds ratio of 2.80 (95% confidence interval 1.53-5.12; p = 0.0007). Population attributable fraction of childhood sexual abuse to functional movement disorders in women was 0.12 (0.05-0.19). No statistically significant associations were found in men, but our cohort of men was underpowered despite including multiple sites. CONCLUSIONS Our study suggests that violence against women may account for some of the gender disparity in rates of functional movement disorders. Most people with functional movement disorders do not report a history of abuse, so it remains just one among many relevant risk factors to consider.
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Affiliation(s)
- Isaiah Kletenik
- Division of Cognitive and Behavioral Neurology, Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, 60 Fenwood Road, 9016H, Boston, MA, 02115, USA.
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, USA.
- Behavioral Neurology Section, University of Colorado School of Medicine, Aurora, CO, USA.
| | - Samantha K Holden
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, USA
- Behavioral Neurology Section, University of Colorado School of Medicine, Aurora, CO, USA
- Movement Disorders Center, University of Colorado School of Medicine, Aurora, CO, USA
| | - Stefan H Sillau
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Nicola O'Connell
- Department of Public Health and Primary Care, Institute of Population Health, Trinity College Dublin, Dublin, Ireland
| | - Lindsey MacGillivray
- Division of Psychiatry, University Health Network and the University of Toronto, Toronto, ON, Canada
| | - Joel Mack
- Department of Psychiatry, Northwest Parkinson's Disease Research, Education, and Clinical Center, Portland, OR, USA
- Department of Neurology, Veterans Affairs Portland Health Care System, Portland, OR, USA
| | - Beatrix Haddock
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
| | - M Ashworth Dirac
- Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA
- Departments of Health Metrics and Family Medicine, University of Washington, Seattle, WA, USA
| | - Anthony S David
- Institute of Mental Health, Division of Psychiatry, Faculty of Brain Sciences, University College London, London, UK
| | - Timothy R Nicholson
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | | | - Carine W Maurer
- Department of Neurology, Stony Brook University School of Medicine, Stony Brook, NY, USA
| | - Sarah C Lidstone
- Edmond J. Safra Program in Parkinson's Disease and the Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital and the University of Toronto, Toronto, ON, Canada
| | - Mark Hallett
- Human Motor Control Section, Medical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Kathrin LaFaver
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Department of Neurology, Movement Disorder Division, University of Louisville, Louisville, KY, USA
| | - Brian D Berman
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, USA
- Movement Disorders Center, University of Colorado School of Medicine, Aurora, CO, USA
- Department of Neurology, Virginia Commonwealth University, Richmond, VA, USA
| | - Jon Stone
- Centre for Clinical Brain Sciences, University of Edinburgh, Royal Infirmary of Edinburgh, Edinburgh, UK
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11
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Lidstone SC, Costa-Parke M, Robinson EJ, Ercoli T, Stone J. Functional movement disorder gender, age and phenotype study: a systematic review and individual patient meta-analysis of 4905 cases. J Neurol Neurosurg Psychiatry 2022; 93:609-616. [PMID: 35217516 DOI: 10.1136/jnnp-2021-328462] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 02/01/2022] [Indexed: 11/03/2022]
Abstract
Functional movement disorder (FMD) is a common manifestation of functional neurological disorder presenting with diverse phenotypes such as tremor, weakness and gait disorder. Our current understanding of the basic epidemiological features of this condition is unclear. We aimed to describe and examine the relationship between age at onset, phenotype and gender in FMD in a large meta-analysis of published and unpublished individual patient cases. An electronic search of PubMed was conducted for studies from 1968 to 2019 according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Individual patient data were collected through a research network. We described the distribution of age of onset and how this varied by gender and motor phenotype. A one-stage meta-analysis was performed using multilevel mixed-effects linear regression, including random intercepts for country and data source. A total of 4905 individual cases were analysed (72.6% woman). The mean age at onset was 39.6 years (SD 16.1). Women had a significantly earlier age of onset than men (39.1 years vs 41.0 years). Mixed FMD (23.1%), tremor (21.6%) and weakness (18.1%) were the most common phenotypes. Compared with tremor (40.7 years), the mean ages at onset of dystonia (34.5 years) and weakness (36.4 years) were significantly younger, while gait disorders (43.2 years) had a significantly later age at onset. The interaction between gender and phenotype was not significant. FMD peaks in midlife with varying effects of gender on age at onset and phenotype. The data gives some support to 'lumping' FMD as a unitary disorder but also highlights the value in 'splitting' into individual phenotypes where relevant.
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Affiliation(s)
- Sarah C Lidstone
- Integrated Movement Disorders Program, University Health Network, Toronto, Ontario, Canada .,Division of Neurology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Michael Costa-Parke
- Integrated Movement Disorders Program, University Health Network, Toronto, Ontario, Canada
| | - Emily J Robinson
- Royal Marsden Clinical Trials Unit, The Royal Marsden NHS Foundation Trust, Sutton, UK.,King's College London, School of Population Health and Environmental Sciences, London, UK
| | - Tommaso Ercoli
- Department of Medical Sciences and Public Health, Institute of Neurology, University of Cagliari, Cagliari, Italy
| | - Jon Stone
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
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Patron VG, Rustomji Y, Yip C, Jenkins LM. Psychiatric Comorbidities in Functional Neurologic Symptom Disorder. PRACTICAL NEUROLOGY (FORT WASHINGTON, PA.) 2022; 21:71-75. [PMID: 36644502 PMCID: PMC9836030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Attachment deficits in the context of psychosocial factors may explain the presence of functional neurologic disorder.
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Affiliation(s)
- Victor German Patron
- Department of Neurological Sciences Department of Psychiatry and Behavioral Sciences Rush University Chicago, IL
| | | | - Chadwick Yip
- Department of Psychiatry and Behavioral Sciences Rush University Chicago, IL
| | - Lisanne Michelle Jenkins
- Department of Psychiatry and Behavioral Sciences Feinberg School of Medicine, Northwestern University Chicago, IL
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Olvera C, Stebbins GT, Goetz CG, Kompoliti K. TikTok Tics: A Pandemic Within a Pandemic. Mov Disord Clin Pract 2021; 8:1200-1205. [PMID: 34765687 PMCID: PMC8564823 DOI: 10.1002/mdc3.13316] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/14/2021] [Accepted: 07/20/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND TikTok is a social media platform where users create and share videos. During the COVID-19 pandemic, the use of this site greatly expanded. Tic and Tourette syndrome content also increased dramatically along with the number of patients with tics in neurology clinics. OBJECTIVES We compared the phenomenology of "TikTok tics" to typical tic disorders. We chose to analyze the most widely viewed videos and therefore focused on the most popular content creators. METHODS Videos with the keywords "tic," "Tourette," or "tourettes" were reviewed to identify content creators between March 11, 2020 and March 30, 2021. We performed a quantitative assessment of TikTok tics as well as a descriptive analysis of the entire series of videos of each content creator. RESULTS The mean age of the cohort was 18.8 years old, and the majority were women. Unlike the predominance of facial movements in typical tics, arm movements were most frequent. Average tics per minute was 29, and almost all recorded TikTok tics were severe, causing significant disability. Whereas coprolalia and self-injurious behavior are only infrequently encountered in typical tic disorders, they were present in the overwhelming majority of TikTok subjects. CONCLUSIONS TikTok tics are distinct from what is typically seen in patients with Tourette syndrome, although share many characteristics with functional tics. We believe this to be an example of mass sociogenic illness, which involves behaviors, emotions, or conditions spreading spontaneously through a group. A modern clinician needs to remain abreast of social media sources as knowledge of media content is essential in managing patients in the current environment.
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Affiliation(s)
- Caroline Olvera
- Department of Neurological SciencesRush University Medical CenterChicagoIllinoisUSA
| | - Glenn T. Stebbins
- Department of Neurological SciencesRush University Medical CenterChicagoIllinoisUSA
| | - Christopher G. Goetz
- Department of Neurological SciencesRush University Medical CenterChicagoIllinoisUSA
| | - Katie Kompoliti
- Department of Neurological SciencesRush University Medical CenterChicagoIllinoisUSA
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