1
|
Nielsen G, Stone J, Lee TC, Goldstein LH, Marston L, Hunter RM, Carson A, Holt K, Marsden J, Le Novere M, Nazareth I, Noble H, Reuber M, Strudwick AM, Santana Suarez B, Edwards MJ. Specialist physiotherapy for functional motor disorder in England and Scotland (Physio4FMD): a pragmatic, multicentre, phase 3 randomised controlled trial. Lancet Neurol 2024; 23:675-686. [PMID: 38768621 DOI: 10.1016/s1474-4422(24)00135-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 05/22/2024]
Abstract
BACKGROUND Functional motor disorder-the motor variant of functional neurological disorder-is a disabling condition that is commonly associated with poor health outcomes. Pathophysiological models have inspired new treatment approaches such as specialist physiotherapy, although evidence from large randomised controlled trials is absent. We aimed to assess the clinical effectiveness of a specialist physiotherapy intervention for functional motor disorder compared with treatment as usual. METHODS In this pragmatic, multicentre, phase 3 randomised controlled trial at 11 hospitals in England and Scotland, adults with a clinically definite diagnosis of functional motor disorder, diagnosed by a neurologist, were included. Participants were randomly assigned (1:1, stratified by site) using a remote web-based application to either specialist physiotherapy (a protocolised intervention of nine sessions plus follow-up) or treatment as usual (referral to local community neurological physiotherapy). Individuals working on data collection and analysis were masked to treatment allocation. The primary outcome was the physical functioning domain of the 36-item short form health questionnaire (SF36) at 12 months after randomisation. The primary analysis followed a modified intention-to-treat principle, using a complete case approach; participants who were unable to receive their randomised treatment due to the suspension of health-care services during the COVID-19 pandemic were excluded from the primary analysis. This trial is registered with the International Standard Randomised Controlled Trial registry, ISRCTN56136713, and is completed. FINDINGS Recruitment occurred between Oct 19, 2018, and March 11, 2020, pausing during the COVID-19 lockdown, and resuming from Aug 3, 2021, to Jan 31, 2022. Of 355 participants who were enrolled, 179 were randomly assigned to specialist physiotherapy and 176 to treatment as usual. 89 participants were excluded from the primary analysis due to COVID-19 interruption to treatment (27 were assigned to specialist physiotherapy and 62 to treatment as usual). After accounting for withdrawals (n=11) and loss to follow-up (n=14), the primary analysis included data from 241 participants (138 [91%] assigned specialist physiotherapy and 103 [90%] assigned treatment as usual). Physical functioning, as assessed by SF36, did not differ significantly between groups (adjusted mean difference 3·5, 95% CI -2·3 to 9·3; p=0·23). There were no serious adverse events related to the trial interventions. 35 serious adverse events were recorded in the specialist physiotherapy group by 24 participants (17·0%), and 24 serious adverse events were recorded in the treatment as usual group by 18 participants (17·0%); one death occurred in the specialist physiotherapy group (cause of death was recorded as suicide). All were considered unrelated to specialist physiotherapy. INTERPRETATION Although more participants who were assigned specialist physiotherapy self-rated their motor symptoms as improved and had better scores on subjective measures of mental health, the intervention did not result in better self-reported physical functioning at 12 months. Both the specialist and community neurological physiotherapy appeared to be a safe and a valued treatment for selected patients with functional motor disorder. Future research should continue to refine interventions for people with functional motor disorder and develop evidence-based methods to guide treatment triage decisions. FUNDING National Institute for Health and Care Research and Health Technology Assessment Programme.
Collapse
Affiliation(s)
- Glenn Nielsen
- Neuroscience Research Centre, Institute of Molecular and Clinical Sciences, St George's University of London, London, UK.
| | - Jon Stone
- Centre for Clinical Brain Sciences, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Teresa C Lee
- Department of Primary Care and Population Health, University College London, London, UK; PRIMENT Clinical Trials Unit, University College London, London, UK; Department of Statistical Science, University College London, London, UK
| | - Laura H Goldstein
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Louise Marston
- Department of Primary Care and Population Health, University College London, London, UK; PRIMENT Clinical Trials Unit, University College London, London, UK
| | - Rachael Maree Hunter
- PRIMENT Clinical Trials Unit, University College London, London, UK; Department of Applied Health Research, University College London, London, UK
| | - Alan Carson
- Centre for Clinical Brain Sciences, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Kate Holt
- Neuroscience Research Centre, Institute of Molecular and Clinical Sciences, St George's University of London, London, UK
| | - Jon Marsden
- School of Health Professions, Faculty of Health, University of Plymouth, Plymouth, UK
| | - Marie Le Novere
- PRIMENT Clinical Trials Unit, University College London, London, UK; Department of Applied Health Research, University College London, London, UK
| | - Irwin Nazareth
- Department of Primary Care and Population Health, University College London, London, UK; PRIMENT Clinical Trials Unit, University College London, London, UK
| | - Hayley Noble
- Neuroscience Research Centre, Institute of Molecular and Clinical Sciences, St George's University of London, London, UK
| | - Markus Reuber
- Academic Neurology Unit, University of Sheffield, Sheffield, UK
| | | | - Beatriz Santana Suarez
- Neuroscience Research Centre, Institute of Molecular and Clinical Sciences, St George's University of London, London, UK
| | - Mark J Edwards
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, London, UK; Department of Neuropsychiatry, Maudsley Hospital, London, UK
| |
Collapse
|
2
|
McLoughlin C, McWhirter L, Pisegna K, Tijssen MAJ, Tak LM, Carson A, Stone J. Stigma in functional neurological disorder (FND) - A systematic review. Clin Psychol Rev 2024; 112:102460. [PMID: 38905960 DOI: 10.1016/j.cpr.2024.102460] [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: 12/12/2023] [Revised: 05/10/2024] [Accepted: 06/10/2024] [Indexed: 06/23/2024]
Abstract
OBJECTIVE The purpose of this systematic review was to evaluate stigma and Functional Neurological Disorder (FND) regarding: 1) prevalence and associated factors, 2) the nature and context of stigma in FND, and 3) stigma-reduction interventions. METHODS We searched four relevant databases from inception to December 2023, using search terms relevant to FND and stigma themes. We employed the method of synthesis by "aggregation and configuration" to synthesise and analyse the data into emergent themes. RESULTS We found 127 studies, spanning 148 countries, involving 18,886 participants. Of these, 4889 were patients, 13,123 were healthcare professionals, and 526 were caregivers. Quantitatively, stigma has been mainly studied in patients with functional seizures, and was higher than patients with epilepsy in three studies. Stigma experienced by patients is associated with poorer quality of life and caregiver burden. We found 10 themes and 29 subthemes revealing stigma as a systemic process, with intrapersonal, interpersonal and structural aspects. Few studies examined the perspective of caregivers, the public or online community. We identified six anti-stigma interventions. CONCLUSION Stigma in FND is a layered process, and affects patient quality of life and provision of care. Stigma needs to be addressed from the top structures, at governmental level, so that appropriate care pathways can be created, giving patients with FND parity of esteem with other medical conditions.
Collapse
Affiliation(s)
- Caoimhe McLoughlin
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom.
| | - Laura McWhirter
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | | | - Marina A J Tijssen
- UMCG Expertise Centre Movement Disorders Groningen, University of Groningen, Groningen, the Netherlands
| | - Lineke M Tak
- Dimence Alkura, Specialist center Persistent Somatic Symptoms, Nico Bolkensteinlaan 65, 7416 SE Deventer, the Netherlands
| | - Alan Carson
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Jon Stone
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| |
Collapse
|
3
|
Bailey C, Agrawal N, Cope S, Proctor B, Mildon B, Butler M, Holt K, Edwards M, Poole N, Nicholson TR. Illness perceptions, experiences of stigma and engagement in functional neurological disorder (FND): exploring the role of multidisciplinary group education sessions. BMJ Neurol Open 2024; 6:e000633. [PMID: 38860228 PMCID: PMC11163674 DOI: 10.1136/bmjno-2024-000633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 04/21/2024] [Indexed: 06/12/2024] Open
Abstract
Background A critical first step in managing functional neurological disorder (FND) is a positive diagnosis and clear explanation using an understandable illness model. Multidisciplinary group education sessions are one way to achieve this, with some evidence they improve understanding, confidence in diagnosis and outcomes with further treatment. In many conditions, illness perceptions and stigma affect distress, functioning, quality of life and engagement. Exploring relationships between these factors could lead to deeper understanding of the impact of education. Methods Questionnaires assessing illness perceptions, quality of life, mood, anxiety, comorbidities, treatment engagement and stigma (both experienced and anticipated) were completed before, immediately and 1 month after a multidisciplinary online group education session for FND at a regional neurosciences centre. Free-text data on causal attributions and needs were also collected. Results 166 patients attended online education sessions from January 2022 to July 2023; 61 (37%) completed presession surveys, 42 (25%) completed postsession and 35 (21%) completed 1 month postsession surveys. Patients reported multiple comorbidities, poor quality of life, functioning and high levels of stigma. Illness perception scores indicated FND as threatening, mysterious and unpredictable, with low personal or treatment control over symptoms. Illness coherence/understanding (mean difference 2.27, p<0.01, 95% CI 1.22 to 4.23) and engagement (mean difference 2.42, p<0.01, 95% CI 0.46 to 4.36) increased after the session. There were no significant changes in stigma, distress, sense of control or anticipated discrimination. Free-text analysis revealed stress and trauma as the most common causal attributions, followed by physical illnesses. Patients requested personalised formulations, practical disability advice, help with explaining the condition to others (eg, employers), peer support and treatment. Conclusion Multidisciplinary group FND education sessions potentially improve patient understanding and engagement. Clinicians should consider the possible benefits of personalised formulations and linking to practical and peer support. Further work assessing illness perceptions is needed, such as adapting measures for FND.
Collapse
Affiliation(s)
- Cate Bailey
- Neuropsychiatry Research and Education Group, Institute of Psychiatry Psychology & Neuroscience, King's College London, London, UK
- East London NHS Foundation Trust, London, UK
| | - Niruj Agrawal
- Neuropsychiatry Service, South West London and St George's Mental Health NHS Trust, London, UK
- Atkinson Morley Regional Neurosciences Centre, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Sarah Cope
- Neuropsychiatry Service, South West London and St George's Mental Health NHS Trust, London, UK
| | - Barnaby Proctor
- Neuropsychiatry Service, South West London and St George's Mental Health NHS Trust, London, UK
| | | | - Matt Butler
- Neuropsychiatry Research and Education Group, Institute of Psychiatry Psychology & Neuroscience, King's College London, London, UK
| | - Kate Holt
- Atkinson Morley Regional Neurosciences Centre, St George's University Hospitals NHS Foundation Trust, London, UK
- Wolfson Neurorehabilitation Centre, Queen Mary's Hospital, London, UK
| | - Mark Edwards
- Neuropsychiatry Research and Education Group, Institute of Psychiatry Psychology & Neuroscience, King's College London, London, UK
| | - Norman Poole
- Neuropsychiatry Research and Education Group, Institute of Psychiatry Psychology & Neuroscience, King's College London, London, UK
- The Lishman Unit (Brain Injury and Functional Neurology), South London and Maudsley NHS Foundation Trust, London, UK
| | - Timothy R Nicholson
- Neuropsychiatry Research and Education Group, Institute of Psychiatry Psychology & Neuroscience, King's College London, London, UK
| |
Collapse
|
4
|
Popkirov S. [Functional movement disorders: overcoming belle indifférence]. DER NERVENARZT 2024; 95:497-498. [PMID: 38874600 DOI: 10.1007/s00115-024-01646-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/05/2024] [Indexed: 06/15/2024]
Affiliation(s)
- Stoyan Popkirov
- Klinik für Neurologie, Universitätsklinikum Essen, Hufelandstraße 55, 45147, Essen, Deutschland.
| |
Collapse
|
5
|
Van Patten R, Mordecai K, LaFrance WC. The role of neuropsychology in the care of patients with functional neurological symptom disorder. J Int Neuropsychol Soc 2024:1-8. [PMID: 38813659 DOI: 10.1017/s1355617724000249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
OBJECTIVE Functional neurological symptom disorder (FNSD) is a neuropsychiatric condition characterized by signs/symptoms associated with brain network dysfunction. FNSDs are common and are associated with high healthcare costs. FNSDs are relevant to neuropsychologists, as they frequently present with chronic neuropsychiatric symptoms, subjective cognitive concerns, and/or low neuropsychological test scores, with associated disability and reduced quality of life. However, neuropsychologists in some settings are not involved in care of patients with FNSDs. This review summarizes relevant FNSD literature with a focus on the role of neuropsychologists. METHODS A brief review of the literature is provided with respect to epidemiology, public health impact, symptomatology, pathophysiology, and treatment. RESULTS Two primary areas of focus for this review are the following: (1) increasing neuropsychologists' training in FNSDs, and (2) increasing neuropsychologists' role in assessment and treatment of FNSD patients. CONCLUSIONS Patients with FNSD would benefit from increased involvement of neuropsychologists in their care.
Collapse
Affiliation(s)
- Ryan Van Patten
- Center for Neurorestoration and Neurotechnology, VA Providence Healthcare System, Providence, RI, USA
- Department of Psychiatry and Human Behavior, Brown University, Providence, RI, USA
| | | | - W Curt LaFrance
- Center for Neurorestoration and Neurotechnology, VA Providence Healthcare System, Providence, RI, USA
- Department of Psychiatry and Human Behavior, Brown University, Providence, RI, USA
- Rhode Island Hospital, Providence, RI, USA
| |
Collapse
|
6
|
O'Mahony BW, Nelson-Sice R, Nielsen G, Hunter R, Cope S, Agarwal N, Edwards MJ, Yogarajah M. Cross-sectional evaluation of health resource use in patients with functional neurological disorders referred to a tertiary neuroscience centre. BMJ Neurol Open 2024; 6:e000606. [PMID: 38800070 PMCID: PMC11116875 DOI: 10.1136/bmjno-2023-000606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/13/2024] [Indexed: 05/29/2024] Open
Abstract
Introduction Functional neurological disorder (FND) is a common cause of referral to neurology services. FND has been shown to lead to significant healthcare resource use and is associated with significant disability, comorbidity and distress. This leads to substantial direct, indirect and intangible costs to the patient and society. Methods We recruited consecutive patients with FND referred to a tertiary FND specialist clinic. We assessed health and social care resource use in the 6 months preceding their consultation through a modified version of the Client Service Receipt Inventory in the form of a postal questionnaire. The total cost was estimated by combining the number and frequency of health resource use with standard national unit costs. We also assessed indirect costs such as informal care and loss of income. Results We collected data on 118 subjects. Patients with comorbid anxiety or depression had higher costs in the preceding 6 months, as did patients who had a longer duration of FND symptoms. Indirect costs were higher than the already substantial direct costs and a large proportion of patients with FND were receiving government support. Conclusion This study highlights the high cost of FND to both patients and health systems. Adequate reform of the patient pathway and reorganisation of services to make diagnoses and initiate treatment more quickly would likely reduce these costs.
Collapse
Affiliation(s)
- Brian William O'Mahony
- Institute of Psychiatry at the Maudsley, London, UK
- University Hospital Galway, Galway, Ireland
| | | | - Glenn Nielsen
- Institute of Molecular and Clinical Sciences, St George's University, London, UK
| | - Rachael Hunter
- Primary Care and Population Health, University College London, London, UK
| | - Sarah Cope
- South West London and Saint George's Mental Health NHS Trust, London, UK
| | - Niruj Agarwal
- Department of Neuropsychiatry, South West London and St George's Mental Health NHS Trust, London, UK
| | | | - Mahinda Yogarajah
- Department of Clinical and Experimental Epilepsy, National Hospital for Neurology and Neurosurgery, London, UK
| |
Collapse
|
7
|
Gilmour GS, Langer LK, Bhatt H, MacGillivray L, Lidstone SC. Factors Influencing Triage to Rehabilitation in Functional Movement Disorder. Mov Disord Clin Pract 2024; 11:515-525. [PMID: 38385766 PMCID: PMC11078488 DOI: 10.1002/mdc3.14007] [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] [Received: 11/20/2023] [Revised: 01/26/2024] [Accepted: 02/06/2024] [Indexed: 02/23/2024] Open
Abstract
BACKGROUND Treatment of functional movement disorder (FMD) should be individualized, yet factors determining rehabilitation engagement have not been evaluated. Subspecialty FMD clinics are uniquely poised to explore factors influencing treatment suitability and triage. OBJECTIVES To describe our approach and explore factors associated with triage to FMD rehabilitation. METHODS We conducted a retrospective chart review of 158 consecutive patients with FMD seen for integrated assessment by movement disorders neurology and psychiatry, with the purpose of triage to rehabilitation. Demographic and clinical variables were compared between patients triaged to therapy versus no therapy, and logistic regression was used to explore factors predictive of triage outcome. Change in primary outcome scores were analyzed. RESULTS Sixty-six patients (42%) were triaged to FMD therapy from July 2019 to December 2021. Patients triaged to therapy were more likely to have a constant movement disorder, gait disorder and/or tremor, hyperarousal, readiness for change, and people pleasing traits. Patients triaged to no therapy demonstrated persistent diagnostic disagreement, an inability to appreciate motor symptom inconsistency, low self-agency, a propensity to dissociate, and cluster B traits. 90% of patients triaged to rehabilitation had improved outcomes. CONCLUSIONS The ability to "opt-in" to FMD rehabilitation relies on different factors than those relevant to establishing a diagnosis. Unlike many other neurological disorders, a triage and treatment planning step is recommended to identify those likely to meaningfully engage at that time. Holistic assessment through a transdisciplinary lens, and working collaboratively with the patient is essential to prioritize symptoms, determine engagement, and identify treatment targets.
Collapse
Affiliation(s)
- Gabriela S. Gilmour
- Edmond J. Safra Program in Parkinson's Disease and the Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western HospitalTorontoONCanada
- Division of Neurology, Department of MedicineUniversity of TorontoTorontoONCanada
- Division of Neurology, Department of Clinical NeurosciencesUniversity of CalgaryCalgaryABCanada
| | - Laura K. Langer
- KITE Research Institute, Toronto Rehabilitation Institute, University Health NetworkTorontoONCanada
| | - Haseel Bhatt
- Edmond J. Safra Program in Parkinson's Disease and the Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western HospitalTorontoONCanada
- KITE Research Institute, Toronto Rehabilitation Institute, University Health NetworkTorontoONCanada
- Integrated Movement Disorders ProgramToronto Rehabilitation Institute, University Health NetworkTorontoONCanada
| | - Lindsey MacGillivray
- Integrated Movement Disorders ProgramToronto Rehabilitation Institute, University Health NetworkTorontoONCanada
- Centre for Mental Health, University Health Network and Department of PsychiatryUniversity of TorontoTorontoONCanada
| | - Sarah C. Lidstone
- Edmond J. Safra Program in Parkinson's Disease and the Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western HospitalTorontoONCanada
- Division of Neurology, Department of MedicineUniversity of TorontoTorontoONCanada
- KITE Research Institute, Toronto Rehabilitation Institute, University Health NetworkTorontoONCanada
- Integrated Movement Disorders ProgramToronto Rehabilitation Institute, University Health NetworkTorontoONCanada
| |
Collapse
|
8
|
Gunduz A, Valls-Solé J, Serranová T, Coppola G, Kofler M, Jääskeläinen SK. The blink reflex and its modulation - Part 2: Pathophysiology and clinical utility. Clin Neurophysiol 2024; 160:75-94. [PMID: 38412746 DOI: 10.1016/j.clinph.2024.02.006] [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: 07/09/2023] [Revised: 12/30/2023] [Accepted: 02/06/2024] [Indexed: 02/29/2024]
Abstract
The blink reflex (BR) is integrated at the brainstem; however, it is modulated by inputs from various structures such as the striatum, globus pallidus, substantia nigra, and nucleus raphe magnus but also from afferent input from the peripheral nervous system. Therefore, it provides information about the pathophysiology of numerous peripheral and central nervous system disorders. The BR is a valuable tool for studying the integrity of the trigemino-facial system, the relevant brainstem nuclei, and circuits. At the same time, some neurophysiological techniques applying the BR may indicate abnormalities involving structures rostral to the brainstem that modulate or control the BR circuits. This is a state-of-the-art review of the clinical application of BR modulation; physiology is reviewed in part 1. In this review, we aim to present the role of the BR and techniques related to its modulation in understanding pathophysiological mechanisms of motor control and pain disorders, in which these techniques are diagnostically helpful. Furthermore, some BR techniques may have a predictive value or serve as a basis for follow-up evaluation. BR testing may benefit in the diagnosis of hemifacial spasm, dystonia, functional movement disorders, migraine, orofacial pain, and psychiatric disorders. Although the abnormalities in the integrity of the BR pathway itself may provide information about trigeminal or facial nerve disorders, alterations in BR excitability are found in several disease conditions. BR excitability studies are suitable for understanding the common pathophysiological mechanisms behind various clinical entities, elucidating alterations in top-down inhibitory systems, and allowing for follow-up and quantitation of many neurological syndromes.
Collapse
Affiliation(s)
- Aysegul Gunduz
- Istanbul University-Cerrahpasa, Cerrahpasa Faculty of Medicine, Department of Neurology, Division of Neurophysiology, Istanbul, Turkey.
| | - Josep Valls-Solé
- IDIBAPS. Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Villarroel 170 08024, Barcelona, Spain.
| | - Tereza Serranová
- Department of Neurology and Center of Clinical Neuroscience, Charles University, Prague 1st Faculty of Medicine and General University Hospital, Prague, Kateřinská 30, 12800 Prague 2, Czech Republic.
| | - Gianluca Coppola
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino ICOT, via Franco Faggiana 1668 04100, Latina, Italy.
| | - Markus Kofler
- Department of Neurology, Hochzirl Hospital, A-6170 Zirl, Austria.
| | - Satu K Jääskeläinen
- Department of Clinical Neurophysiology, Division of Medical Imaging, Turku University Hospital and University of Turku, Postal Box 52, FIN 20521 Turku, Finland.
| |
Collapse
|
9
|
Abi-Nahed R, Li J, Carlier J, Birca V, Bérubé AA, Nguyen DK. Outcome of psychogenic non-epileptic seizures following diagnosis in the epilepsy monitoring unit. Front Neurol 2024; 15:1363459. [PMID: 38419704 PMCID: PMC10899437 DOI: 10.3389/fneur.2024.1363459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 01/31/2024] [Indexed: 03/02/2024] Open
Abstract
Objective To study the outcome of patients with psychogenic non-epileptic seizures (PNES) after their diagnosis in the epilepsy monitoring unit (EMU). Methods Patients diagnosed in our EMU with definite PNES between January 2009 and May 2023 were contacted by phone, and those who agreed to participate were asked a set of predetermined questions. Comparative analyses were carried out on several variables before and after diagnosis: number of participants with daily PNES, number of visits to the emergency department, number of participants who consulted their general practitioner or a neurologist outside of a scheduled follow-up, number of participants who took antiseizure medications (ASMs) or psychotropic drugs, and employment status. Results Out of the 103 patients with a definite diagnosis of PNES, 61 patients (79% female) accepted to participate in our study. The median age at PNES onset was 35 years, and the median delay to diagnosis was 3 years. Almost two-thirds (62%) were receiving ASMs and 40% psychotropic drugs. The mean stay at the EMU was 5 days. PNES diagnosis was explained to almost all patients (97%) by the end of their EMU stay and was well-accepted by most (89%). When contacted, 46% of participants no longer had PNES; 32% mentioned that their PNES had ceased immediately upon communication of the diagnosis. The median follow-up duration was 51 months. Fewer patients had daily seizures after the diagnosis (18 vs. 38%; p < 0.0455). Similarly, the median number of emergency department visits was significantly lower (0 vs. 2; p < 0.001). Only 17 patients consulted their general practitioner (vs. 40, p < 0.001) and 20 a neurologist (vs. 55, p < 0.001) after a PNES attack outside of a scheduled follow-up. The use of ASMs was also significantly reduced from 70 to 33% (p < 0.01), with only one still taking an ASM for its antiseizure properties. Significantly more participants were working at last follow-up than at PNES diagnosis (49 vs. 25%; p < 0.001). Conclusion Our study revealed a relatively favorable long-term outcome of definite PNES diagnosed in the EMU that translated in significant reductions in PNES frequency, health care utilization and ASM use, as well as a significant increase in employment rate.
Collapse
Affiliation(s)
- Rachelle Abi-Nahed
- Division of Neurology, Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Jimmy Li
- Division of Neurology, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada
- Centre de Recherche du Centre Hospitalier Universitaire de Montréal, Montreal, QC, Canada
| | - Jasmine Carlier
- Centre de Recherche du Centre Hospitalier Universitaire de Montréal, Montreal, QC, Canada
- Département de Neurosciences, Faculté de Médecine, Université of Montréal, Montreal, QC, Canada
| | - Véronica Birca
- Centre de Recherche du Centre Hospitalier Universitaire de Montréal, Montreal, QC, Canada
| | - Arline-Aude Bérubé
- Division of Neurology, Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Dang Khoa Nguyen
- Division of Neurology, Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
- Centre de Recherche du Centre Hospitalier Universitaire de Montréal, Montreal, QC, Canada
- Département de Neurosciences, Faculté de Médecine, Université of Montréal, Montreal, QC, Canada
| |
Collapse
|
10
|
Calma AD, Heffernan J, Farrell N, Gelauff J, O'Connell N, Perez DL, Perriman D, Smyth L, Stone J, Lueck CJ. The Impact of Depression, Anxiety and Personality Disorders on the Outcome of Patients with Functional Limb Weakness - Individual Patient Data Meta-Analysis. J Psychosom Res 2023; 175:111513. [PMID: 37832273 DOI: 10.1016/j.jpsychores.2023.111513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/26/2023] [Accepted: 09/30/2023] [Indexed: 10/15/2023]
Abstract
OBJECTIVE Psychiatric comorbidities such as depression, anxiety, and personality disorders are common in patients with functional limb weakness/paresis (FND-par). The impact of these conditions on the prognosis of FND-par has not been systematically reviewed. The aim of this study was to identify a potential prognostic effect of comorbid depression, anxiety, and/or personality disorder on prognosis in patients with FND-par. METHODS A systematic review was performed to identify studies that reported measures of baseline depression, anxiety, and/or personality disorder, and physical disability. An individual patient data meta-analysis was subsequently performed. RESULTS Eight studies comprising 348 individuals were included (7 prospective cohorts; 1 case-control study). There was heterogeneity in sample size, follow-up duration, and treatment modality. Depression and anxiety were present in 51.4% and 53.0% of FND-par patients, respectively. In individuals whose FND-par improved, there was no significant difference between those with versus without depression (52.6% vs 47.4%, p = 0.69) or those with versus without anxiety (50.3% vs 49.7%, p = 0.38). Meta-analysis showed no clear impact of baseline depression or anxiety per se [pooled OR for depression 0.85 (95%CI 0.50-1.45; p = 0.40) and anxiety 0.84 (95%CI 0.51-1.38; p = 0.91)]; and of depression or anxiety severity [pooled OR for depression 1.23 (95%CI 0.63-2.39; p = 0.91) and anxiety 1.40 (95%CI 0.70-2.78; p = 0.58)] on FND-par outcome. Insufficient data were available to assess the impact of personality disorders. CONCLUSION We found no evidence that depression or anxiety influenced outcome in FND-par. Large-scale, prospective studies in FND-par, and other FND subtypes, are needed to fully contextualize the impact of concurrent mental health concerns on outcomes.
Collapse
Affiliation(s)
- Aicee Dawn Calma
- Department of Neurosciences Concord Repatriation General Hospital, Sydney, Australia; School of Medicine and Psychology, Australian National University, Canberra, Australia; Department of Neurology, Canberra Hospital Health Services, Canberra, Australia.
| | - James Heffernan
- School of Medicine and Psychology, Australian National University, Canberra, Australia; Department of Neurology, Canberra Hospital Health Services, Canberra, Australia
| | - Neil Farrell
- School of Medicine and Psychology, Australian National University, Canberra, Australia
| | - Jeanette Gelauff
- Department of Neurology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Nicola O'Connell
- Sexual Health and Crisis Pregnancy Programme, Health Service Executive, Dublin 1, Ireland
| | - David L Perez
- Departments of Neurology and Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Diana Perriman
- School of Medicine and Psychology, Australian National University, Canberra, Australia
| | - Lilian Smyth
- School of Medicine and Psychology, Australian National University, Canberra, Australia
| | - Jon Stone
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Christian J Lueck
- School of Medicine and Psychology, Australian National University, Canberra, Australia; Department of Neurology, Canberra Hospital Health Services, Canberra, Australia
| |
Collapse
|
11
|
Tayeb HO. Functional neurological disorder in Saudi Arabia: A retrospective study. Int J Psychiatry Med 2023:912174231215908. [PMID: 37947358 DOI: 10.1177/00912174231215908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
OBJECTIVES To describe the clinical profile of a sample of Saudi patients with Functional Neurological Disorder (FND). METHOD A retrospective review of charts of FND patients seen from 2021-2023 at a neuropsychiatry clinic at an academic tertiary care center in Jeddah, Saudi Arabia. RESULTS Out of 473 patients seen in the clinic, 52 (11%) had FND. Their mean age was 34 (standard deviation = 10.7), and 77% were female. Family disputes (39%) were the most reported risk factor, followed by sexual abuse (15%). The most common FND symptoms were nonepileptic seizures (61.5%) and abnormal movements (30.8%). Pain was reported by 57.7% and cognitive symptoms by 36.5%. FND symptoms were frequently attributed to supernatural causes (67.3%). During the last follow up visit, 53.9% of patients reported FND symptom improvement, whereas 21.2% reported no change, 10.2% reported worsening, and 15% were lost to follow-up. The proportion of patients without symptom improvement was higher among patients with cognitive symptoms (45.5% vs 18% respectively, X2 = 10.08, df = 3, P = .018). The mean number of visits was highest in patients reporting worsening and lowest among patients reporting no change (F = 4.21, P = .017). CONCLUSION The role of family disputes in FND in the Middle East, the role of supernatural concepts in how FND is perceived, and the relatively high rate of subjective improvement within this sample of Saudi FND patients merit exploration. Cognitive symptoms may be a prognostic indicator. Prospective multicenter research using standardized assessment scales is needed.
Collapse
Affiliation(s)
- Haythum O Tayeb
- The Mind and Brain Studies Initiative, The Neuroscience Research Unit, Division of Neurology, Department of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
12
|
Finkelstein SA, Carson A, Edwards MJ, Kozlowska K, Lidstone SC, Perez DL, Polich G, Stone J, Aybek S. Setting up Functional Neurological Disorder Treatment Services: Questions and Answers. Neurol Clin 2023; 41:729-743. [PMID: 37775201 DOI: 10.1016/j.ncl.2023.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
Functional neurologic disorder (FND) is commonly encountered across outpatient and inpatient medical settings. Given the potential for a high burden of disability in some patients and mounting evidence for the efficacy of FND-specific multidisciplinary treatment services, expanding clinical services for this population is a necessity. In this perspective article, we discuss considerations for creating FND services, including the types of services that exist, how to start, how to identify appropriate referrals, and how to develop and monitor individualized treatment plans. In addition, we discuss how this effort can be done sustainably - balancing patient needs with limited healthcare resources.
Collapse
Affiliation(s)
- Sara A Finkelstein
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA, USA.
| | - Alan Carson
- Department of Clinical Neurosciences, Centre for Clinical Brain Sciences, University of Edinburgh, Royal Infirmary of Edinburgh, 50 Little France Cres, Edinburgh EH16 4SA, UK
| | - Mark J Edwards
- Institute of Psychiatry, Psychology and Neuroscience, King's College 16 De Crespigny Park, London, SE5 8AF, UK
| | - Kasia Kozlowska
- Children's Hospital Westmead Clinical School, Faculty of Medicine and Health, University of Sydney, Westmead Institute for Medical Research, Psychological Medicine, The Children's Hospital at Westmead, Cn Hawkesbury Road, Hainsworth Street, Westmead, NSW 2145, Australia
| | - Sarah C Lidstone
- Integrated Movement Disorders Program, Toronto Rehabilitation Institute, University Centre, Room 3-131, 550 University Avenue, Toronto ON M5G 2A2, Canada
| | - David L Perez
- Departments of Neurology and Psychiatry, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA, 02114, USA
| | - Ginger Polich
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Brigham and Women's Hospital, Harvard Medical School, 300 1st Avenue, Charlestown, MA 02129, USA
| | - Jon Stone
- Department of Clinical Neurosciences, Centre for Clinical Brain Sciences, University of Edinburgh, Royal Infirmary of Edinburgh, 50 Little France Cres, Edinburgh EH16 4SA, UK
| | - Selma Aybek
- Faculté des Sciences et de Médecine, Université de Fribourg, Bureau 2.106d, Chemin du Musée 5, 1700 Fribourg, Suisse
| |
Collapse
|
13
|
Serranová T, Di Vico I, Tinazzi M. Functional Movement Disorder: Assessment and Treatment. Neurol Clin 2023; 41:583-603. [PMID: 37775192 DOI: 10.1016/j.ncl.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
Functional movement disorder (FMD) is a common, potentially reversible source of disability in neurology. Over the last two decades, there have been major advances in our understanding of the clinical picture, diagnosis, and management of this condition. Motor presentation is heterogeneous and several non-motor symptoms (e.g., pain, fatigue) are part of the clinical spectrum. The diagnosis should be made by neurologists or neuropsychiatrists based on the presence of positive signs of inconsistency and incongruence with neurological diseases. Promising evidence has accumulated for the efficacy of physiotherapy, psychotherapy, or both in the management of FMD, for a majority of patients.
Collapse
Affiliation(s)
- Tereza Serranová
- Department of Neurology and Centre of Clinical Neuroscience, General University Hospital and First Faculty of Medicine, Charles University, Kateřinská 30, 12 800, Prague, Czech Republic.
| | - Ilaria Di Vico
- Movement Disorders Division, Department of Neurosciences, Neurology Unit, Biomedicine and Movement Sciences, University of Verona, Piazzale L. A. Scuro 10, 37124, Verona, VR, Italy
| | - Michele Tinazzi
- Movement Disorders Division, Department of Neurosciences, Neurology Unit, Biomedicine and Movement Sciences, University of Verona, Piazzale L. A. Scuro 10, 37124, Verona, VR, Italy
| |
Collapse
|
14
|
Micieli G, Cortelli P, Del Sette M, Cavallini A, Zanferrari C, De Falco A, Quatrale R, Maria G, Cossu G, Haggiag S, Pezzella FR, Zedde ML, Rea F. The Italian hub-and-spoke network for the emergency neurology management. Neurol Sci 2023; 44:3929-3937. [PMID: 37326936 DOI: 10.1007/s10072-023-06883-w] [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: 04/27/2023] [Accepted: 05/31/2023] [Indexed: 06/17/2023]
Abstract
OBJECTIVE The aim of the present study was to assess emergency neurology management in Italy by comparing patients admitted to the hub and spoke hospitals. METHODS Data obtained from the annual Italian national survey (NEUDay) investigating the activity and facilities of neurology in the emergency room conducted in November 2021 were considered. Information for each patient who received a neurologic consultation after accessing the emergency room was acquired. Data on facilities were also gathered, including hospital classification (hub vs spoke), number of consultations, presence of neurology and stroke unit, number of beds, availability of neurologist, radiologist, neuroradiologist, and instrumental diagnostic accessibility. RESULTS Overall, 1,111 patients were admitted to the emergency room and had neurological consultation across 153 facilities (out of the 260 Italian ones). Hub hospitals had significantly more beds, availability of neurological staff, and instrumental diagnostic accessibility. Patients admitted to hub hospital had a greater need for assistance (higher number of yellow/red codes at neurologist triage). A higher propensity to be admitted to hub centers for cerebrovascular problems and to receive a diagnosis of stroke was observed. CONCLUSIONS The identification of hub and spoke hospitals is strongly characterized by the presence of beds and instrumentation mainly dedicated to acute cerebrovascular pathologies. Moreover, the similarity in the number and type of accesses between hub and spoke hospitals suggests the need to look for adequate identification of all the neurological pathologies requiring urgent treatment.
Collapse
Affiliation(s)
- Giuseppe Micieli
- Former Department of Emergency Neurology, IRCCS C. Mondino Foundation, Pavia, Italy.
| | - Pietro Cortelli
- IRCCS Istituto delle Scienze Neurologiche Di Bologna, Bologna, Italy
- DIBINEM, University of Bologna, Bologna, Italy
| | - Massimo Del Sette
- Neurology Unit, IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Anna Cavallini
- Emergency Neurology and Stroke Unit, IRCCS Fondazione Mondino-IRCCS Policlinico San Matteo, Pavia, Italy
| | - Carla Zanferrari
- Neurology and Stroke Unit, ASST Melegnano-Martesana, Vizzolo Predabissi, Milan, Italy
| | - Arturo De Falco
- Neurology and Stroke Unit, Ospedale del Mare, ASL Napoli 1 Centro, Naples, Italy
| | - Rocco Quatrale
- Dipartimento di Scienze Neurologiche, UOC di Neurologia-Ospedale dell'Angelo, AULSS 3 Serenissima, Venezia Mestre, Italy
| | - Guarino Maria
- Neurology, IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Giovanni Cossu
- SSD Neurophysiology and Movement Disorders, Department of Neuroscience, ARNAS Brotzu, Cagliari, Italy
| | - Shalom Haggiag
- Dipartimento di Neuroscienze, Azienda Ospedaliera San Camillo Forlanini, Roma, Italy
| | | | - Maria Luisa Zedde
- Neurology and Stroke Unit, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Federico Rea
- National Centre for Healthcare Research & Pharmacoepidemiology, University of Milano-Bicocca, Milan, Italy
- Laboratory of Healthcare Research & Pharmacoepidemiology, Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy
| |
Collapse
|
15
|
Freeburn JL, Baker J. Functional Speech and Voice Disorders: Approaches to Diagnosis and Treatment. Neurol Clin 2023; 41:635-646. [PMID: 37775195 DOI: 10.1016/j.ncl.2023.02.005] [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] [Indexed: 10/01/2023]
Abstract
Historically, formal training for speech-language therapists (SLTs) in the area of functional speech and voice disorders (FSVD) has been limited, as has the body of empirical research in this content area. Recent efforts in the field have codified expert opinions on best practices for diagnosing and treating FSVD and have begun to demonstrate positive treatment outcomes. To provide comprehensive interventions for these complex conditions at the intersection of neurology, psychiatry, and other medical specialties, the SLT must not only build knowledge of diagnostic strategies and components of symptomatic treatment in FSVD but also embrace behavior change techniques and counseling strategies.
Collapse
Affiliation(s)
- Jennifer L Freeburn
- Department of Speech, Language, and Swallowing Disorders, Massachusetts General Hospital, Boston, MA, USA.
| | - Janet Baker
- Flinders University, Adelaide, Unit 111/3 Young Street, Randwick, NSW 2031, Australia
| |
Collapse
|
16
|
Lerario MP, Rosendale N, Waugh JL, Turban J, Maschi T. Functional Neurological Disorder Among Sexual and Gender Minority People. Neurol Clin 2023; 41:759-781. [PMID: 37775203 DOI: 10.1016/j.ncl.2023.02.010] [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] [Indexed: 10/01/2023]
Abstract
Sexual and gender minority (SGM) people can face unique stressors and structural discrimination that result in higher rates of neuropsychiatric symptoms, such as depression, anxiety, and suicidality. Although more rigorous studies are needed, emerging data suggest a possible higher prevalence of functional neurological disorder and other brain-mind-body conditions in SGM people. Representation and iterative feedback from affected community members is critical to the process of developing affirming environments. More research is needed to explore the relevance of functional neurologic disorder in SGM people within a biopsychosocial framework.
Collapse
Affiliation(s)
- Mackenzie P Lerario
- Fordham Graduate School of Social Service, New York, NY, USA; Greenburgh Pride, Greenburgh, NY, USA.
| | - Nicole Rosendale
- Department of Neurology, University of California San Francisco; Weill Institute for Neurosciences, University of California San Francisco
| | - Jeff L Waugh
- Department of Pediatrics, UT Southwestern Medical School, Dallas, TX, USA
| | - Jack Turban
- Division of Child & Adolescent Psychiatry, University of California San Francisco
| | - Tina Maschi
- Fordham Graduate School of Social Service, New York, NY, USA; Greenburgh Pride, Greenburgh, NY, USA
| |
Collapse
|
17
|
Tayeb HO. Functional Neurological Disorder in Saudi Arabia: An Update. Cureus 2023; 15:e47607. [PMID: 38021543 PMCID: PMC10667081 DOI: 10.7759/cureus.47607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
Functional neurological disorder (FND) is characterized by neurological symptoms that lack congruence with traditional neurological diagnoses. Historically viewed through a Freudian psychoanalytic lens, FND has been conceptualized as a purely psychogenic disorder. However, the contemporary biopsychosocial perspective on FND emphasizes contributions of cognitive and neural circuit dysfunction and the disabling and involuntary nature of the illness. In Saudi Arabia, evidence suggests the prevalence of FND is significant. However, clinical programs and research focused on FND have been lacking. Studies from the region indicate that practitioners may have outdated views of FND. To address this, this narrative review provides an updated perspective on FND that is relevant to Saudi Arabia and the region. It delves into the evolving perception of FND, its underlying pathophysiology, risk factors, clinical presentations, and recent diagnostic and management advances. Unique features of FND in Saudi Arabia may include a significant role for family disputes as a risk factor, prevalent supernatural perceptions of FND, high prevalence of somatization, and cognitive dysfunction, and a potential favorable prognosis. The article concludes by providing the following recommendations related to FND in Saudi Arabia and the region: i) building educational programs to update clinicians about contemporary biopsychosocial perspectives on FND; ii) emphasizing a positive diagnostic approach based on clinical findings in FND; iii) instituting multidisciplinary programs to care for FND patients; iv) supporting systematic research efforts to explore culture-specific FND risk factors, patient outcome measures, and attitudes toward the disorder; v) developing national FND clinical practice guidelines; and vi) launching awareness campaigns to reduce FND stigma.
Collapse
Affiliation(s)
- Haythum O Tayeb
- Medicine, The Mind and Brain Studies Initiative, The Neuroscience Research Unit, Faculty of Medicine, King Abdulaziz University, Jeddah, SAU
- Neurology, Faculty of Medicine, King Abdulaziz University, Jeddah, SAU
| |
Collapse
|
18
|
McLoughlin C, Hoeritzauer I, Cabreira V, Aybek S, Adams C, Alty J, Ball HA, Baker J, Bullock K, Burness C, Dworetzky BA, Finkelstein S, Garcin B, Gelauff J, Goldstein LH, Jordbru A, Huys ACM, Laffan A, Lidstone SC, Linden SC, Ludwig L, Maggio J, Morgante F, Mallam E, Nicholson C, O'Neal M, O'Sullivan S, Pareés I, Petrochilos P, Pick S, Phillips W, Roelofs K, Newby R, Stanton B, Gray C, Joyce EM, Tijssen MA, Chalder T, McCormick M, Gardiner P, Bègue I, Tuttle MC, Williams I, McRae S, Voon V, McWhirter L. Functional neurological disorder is a feminist issue. J Neurol Neurosurg Psychiatry 2023; 94:855-862. [PMID: 36977553 PMCID: PMC10511956 DOI: 10.1136/jnnp-2022-330192] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 02/26/2023] [Indexed: 03/30/2023]
Abstract
Functional neurological disorder (FND) is a common and disabling disorder, often misunderstood by clinicians. Although viewed sceptically by some, FND is a diagnosis that can be made accurately, based on positive clinical signs, with clinical features that have remained stable for over 100 years. Despite some progress in the last decade, people with FND continue to suffer subtle and overt forms of discrimination by clinicians, researchers and the public. There is abundant evidence that disorders perceived as primarily affecting women are neglected in healthcare and medical research, and the course of FND mirrors this neglect. We outline the reasons why FND is a feminist issue, incorporating historical and contemporary clinical, research and social perspectives. We call for parity for FND in medical education, research and clinical service development so that people affected by FND can receive the care they need.
Collapse
Affiliation(s)
- Caoimhe McLoughlin
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Ingrid Hoeritzauer
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Verónica Cabreira
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
- Neurology Department, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Selma Aybek
- Department of Clinical Neuroscience, Hopitaux Universitaires de Geneve, Geneva, Switzerland
- Department of Clinical Neuroscience, Inselspital Universitatsspital Bern Universitatsklinik fur Neurologie, Bern, Switzerland
| | - Caitlin Adams
- Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts, USA
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jane Alty
- College of Health and Medicine, University of Tasmania, Hobart, Tasmania, Australia
- Neurology, Royal Hobart Hospital, Hobart, Tasmania, Australia
| | - Harriet A Ball
- Bristol Medical School, University of Bristol Faculty of Health Sciences, Bristol, UK
- Neurology, North Bristol NHS Trust, Westbury on Trym, UK
| | - Janet Baker
- Randwick Specialist Centre, Private Practice, Randwick, New South Wales, Australia
- College of Nursing and Health Sciences, Flinders University, Adelaide, South Australia, Australia
| | - Kim Bullock
- Department of Psychiatry and Behavioral Sciences, Stanford School of Medicine, Stanford, California, USA
| | | | - Barbara A Dworetzky
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Sara Finkelstein
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | | | - Jeannette Gelauff
- Department of Neurology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Laura H Goldstein
- Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Anika Jordbru
- Faculty of Humanities, Sport and Educational Science, University of South-Eastern Norway, Kongsberg, Norway
| | - Anne-Catherine Ml Huys
- Department of Neurology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Aoife Laffan
- Neurology, St. James's Hospital, Dublin, Ireland
| | - Sarah C Lidstone
- University Health Network and the University of Toronto, Toronto, Ontario, Canada
| | - Stefanie Caroline Linden
- Department of Health, Ethics and Society, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Lea Ludwig
- Department of Clinical Psychology and Psychotherapy, University of Hamburg, Hamburg, Germany
| | - Julie Maggio
- Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Physical Therapy and Functional Neurological Disorder Unit and Research Program, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Francesca Morgante
- Neurosciences Research Centre, Molecular and Clinical Sciences Research Institute, St George's University Hospitals NHS Foundation Trust, London, UK
- Department of Experimental and Clinical Medicine, University of Messina, Messina, Italy
| | - Elizabeth Mallam
- The Rosa Burden Centre, Southmead Hospital, North Bristol NHS Trust, Bristol, UK
| | - Clare Nicholson
- Therapy Services, National Hospital for Neurology & Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
| | - Mary O'Neal
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | | | - Isabel Pareés
- Movement Disorders Program, Neurology Deparment Hospital Ruber Internacional, Madrid, Spain
- Movement Disorders Unit, Neurology Department, Hospital Ramón y Cajal, Madrid, Spain
| | | | - Susannah Pick
- Section of Cognitive Neuropsychiatry, King's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| | - Wendy Phillips
- Department of Neurology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Karin Roelofs
- Donders Institute for Brain Cognition and Behaviour: Donders Centre for Cognitive Neuroimaging, Radboud University Nijmegen, Nijmegen, The Netherlands
- Behavioural Science Institute, Radboud University Nijmegen, Nijmegen, Netherlands
| | - Rachel Newby
- Neurology, Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | | | - Cordelia Gray
- Neurology Psychotherapy Service, Sheffield Teaching Hospital, Academic Neurology Unit, The University of Sheffield, Sheffield, UK
| | - Eileen M Joyce
- Neuropsychiatry, UCL Queen Square Institute of Neurology, London, UK
| | - Marina Aj Tijssen
- Expertise Center Movement Disorders Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - Trudie Chalder
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, Kings College London, London, UK
| | - Maxanne McCormick
- Physician assistant/patient with FND, FNDRecovery.com, -, Monument CO, USA
| | - Paula Gardiner
- Psychological Therapy in Primary Care, University of Dundee, Dundee, UK
- enhance-cbt.com therapist, NeuroSpecialist Physiotherapist, Stirling, UK
| | - Indrit Bègue
- Department of Psychiatry, Geneva University Hospitals, Geneve, Switzerland
| | - Margaret C Tuttle
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Department of Psychiatry, Functional Neurological Disorder Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Isobel Williams
- Neuropsychology, Department of Clinical Neurosciences, NHS Lothian, Edinburgh, UK
| | - Sarah McRae
- Department of Clinical Neurosciences, NHS Lothian, Edinburgh, UK
| | - Valerie Voon
- Psychiatry, University of Cambridge, Cambridge, UK
- Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China
| | - Laura McWhirter
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| |
Collapse
|
19
|
Bratanov C, Hot P, Vercueil L. Prognosis-telling by the neurologist: Two distinct patient profiles in functional neurological disorders. Rev Neurol (Paris) 2023; 179:807-811. [PMID: 37365060 DOI: 10.1016/j.neurol.2023.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/19/2023] [Accepted: 04/03/2023] [Indexed: 06/28/2023]
Affiliation(s)
- C Bratanov
- Neurology department, CHU Grenoble Alpes, Avenue. des Maquis du Grésivaudan, 38700 La Tronche, France.
| | - P Hot
- Department of psychology, University Savoie Mont-Blanc, CNRS, LPNC, Chambéry, France; Institut universitaire de France, Paris, France
| | - L Vercueil
- Neurology department, CHU Grenoble Alpes, Avenue. des Maquis du Grésivaudan, 38700 La Tronche, France; University Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, Grenoble institut neurosciences, 38000 Grenoble, France
| |
Collapse
|
20
|
Nováková L, Anýž J, Forejtová Z, Rošíková T, Věchetová G, Sojka P, Růžička E, Serranová T. Increased Frequency of Self-Reported Obsessive-Compulsive Symptoms in Patients with Functional Movement Disorders. Mov Disord Clin Pract 2023; 10:1341-1348. [PMID: 37772279 PMCID: PMC10525059 DOI: 10.1002/mdc3.13812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 04/06/2023] [Accepted: 05/29/2023] [Indexed: 09/30/2023] Open
Abstract
Background Functional movement disorders (FMD) are associated with a high prevalence of psychiatric comorbidities. Objective To assess the frequency of obsessive-compulsive symptoms (OCS) in FMD. Methods A total of 167 consecutive patients with clinically definite FMD (mean age = 44.4 years, standard deviation [SD] = 12.0, 119 females) and 145 healthy controls (mean age = 43.2 years, SD = 11.8, 103 females) completed the Obsessive-Compulsive Inventory-Revised (OCI-R), which is a widely used tool for assessing OCS. The cutoff score ≥21 is indicative of clinically significant obsessive-compulsive disorder (OCD). Motor symptom severity was assessed using the Simplified FMD Rating Scale (S-FMDRS). All subjects completed questionnaires for depression, anxiety, pain, fatigue, cognitive complaints, health-related quality of life, and childhood trauma. Personality traits were assessed using the Big Five questionnaire. Results FMD patients had higher mean OCI-R score and higher proportion of individuals with OCI-R ≥ 21 42%, 95% confidence interval (CI) = (30.2, 54.6) versus 16%, 95% CI = (8.2, 28.2) in controls, P < 0.001. Patients had higher scores in three domains: checking, ordering, and obsessing (P < 0.001). FMD patients with OCI-R score ≥21 had higher depression, anxiety, cognitive complaints, and lower quality of life compared to those with score <21 (P < 0.001). No correlation between OCI-R and S-FMDRS scores was found. Conclusions FMD patients reported higher rates of OCS compared to controls, along with higher rates of non-motor symptoms and lower quality of life. This finding may have clinical implications and raises the possibility of shared risk factors and common pathophysiological mechanisms in FMD and OCD.
Collapse
Affiliation(s)
- Lucia Nováková
- Department of Neurology and Centre of Clinical NeuroscienceCharles University, 1st Faculty of Medicine and General University Hospital in PraguePragueCzech Republic
| | - Jiří Anýž
- Department of Cybernetics, Faculty of Electrical EngineeringCzech Technical University in PraguePragueCzech Republic
| | - Zuzana Forejtová
- Department of Neurology and Centre of Clinical NeuroscienceCharles University, 1st Faculty of Medicine and General University Hospital in PraguePragueCzech Republic
| | - Tereza Rošíková
- Department of Neurology and Centre of Clinical NeuroscienceCharles University, 1st Faculty of Medicine and General University Hospital in PraguePragueCzech Republic
| | - Gabriela Věchetová
- Department of Neurology and Centre of Clinical NeuroscienceCharles University, 1st Faculty of Medicine and General University Hospital in PraguePragueCzech Republic
| | - Petr Sojka
- Department of Neurology and Centre of Clinical NeuroscienceCharles University, 1st Faculty of Medicine and General University Hospital in PraguePragueCzech Republic
| | - Evžen Růžička
- Department of Neurology and Centre of Clinical NeuroscienceCharles University, 1st Faculty of Medicine and General University Hospital in PraguePragueCzech Republic
| | - Tereza Serranová
- Department of Neurology and Centre of Clinical NeuroscienceCharles University, 1st Faculty of Medicine and General University Hospital in PraguePragueCzech Republic
| |
Collapse
|
21
|
Callister MN, Klanderman MC, Boddu SP, Moutvic MA, Geissler EN, Traver KJ, Staab JP, Hassan A. Outpatient Motor Retraining for Functional Movement Disorder: Predictors of a Favorable Short-Term Response. Mov Disord Clin Pract 2023; 10:1377-1387. [PMID: 37772308 PMCID: PMC10525056 DOI: 10.1002/mdc3.13844] [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: 02/06/2023] [Revised: 06/13/2023] [Accepted: 06/22/2023] [Indexed: 09/30/2023] Open
Abstract
Background Treating functional movement disorder (FMD) with motor retraining is effective but resource intensive. Objectives Identify patient, disease, and program variables associated with favorable treatment outcomes. Methods Retrospective review of the 1 week intensive outpatient FMD program at Mayo Clinic in Minnesota from February 2019 to August 2021. Outcomes included patient-reported measures (Canadian Occupational Performance Measure-Performance and Satisfaction subscales [COPM-P and COPM-S, range 0-10] and Global Rating of Change [GROC, -7 to +7]) and a retrospective investigator-rated scale (0-3, worse/not improved to significantly improved/resolved). Linear regression models identified variables predicting favorable outcomes. Results Participants (n = 201, 74% female, mean age = 46) had median FMD duration of 24 months. The commonest FMD subtypes were gait disorder (65%), tremor (41%) and weakness (17%); 53% had ≥2 subtypes. Most patients (88%) completed a therapeutic screening process before program entry. Patient-reported outcomes at the end of the week improved substantially (COPM-P average change 3.8 ± 1.9; GROC post-program average 5.5 ± 1.7). Available investigator-rated outcomes from short-term follow-up were also positive (102/122 [84%] moderately to significantly improved/resolved). Factors predicting greater improvement in COPM-P were completing therapeutic screening, higher number of non-motor symptoms, shorter FMD duration, earlier program entry, lower baseline COPM scores, and (among screened patients) higher GROC between therapeutic screening and program start. Conclusion Patients with diverse FMD subtypes improved substantially over a 1 week period. Utilization of therapeutic screening and greater improvement between therapeutic screening and program start were novel predictors of favorable outcomes. Non-motor symptoms did not preclude positive responses, although patients with predominant non-motor burden were excluded.
Collapse
Affiliation(s)
| | | | - Sayi P. Boddu
- Mayo Clinic Alix School of MedicineScottsdaleArizonaUSA
| | - Margaret A. Moutvic
- Department of Physical Medicine and RehabilitationMayo ClinicRochesterMinnesotaUSA
| | | | - Katie J. Traver
- Department of Physical Medicine and RehabilitationMayo ClinicRochesterMinnesotaUSA
| | - Jeffrey P. Staab
- Department of Psychiatry and PsychologyMayo ClinicRochesterMinnesotaUSA
| | - Anhar Hassan
- Department of NeurologyMayo ClinicRochesterMinnesotaUSA
- Beacon HospitalDublinIreland
| |
Collapse
|
22
|
O'Mahony B, Nielsen G, Baxendale S, Edwards MJ, Yogarajah M. Economic Cost of Functional Neurologic Disorders: A Systematic Review. Neurology 2023; 101:e202-e214. [PMID: 37339887 PMCID: PMC10351557 DOI: 10.1212/wnl.0000000000207388] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 03/22/2023] [Indexed: 06/22/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Functional neurologic disorder (FND) represents genuine involuntary neurologic symptoms and signs including seizures, weakness, and sensory disturbance, which have characteristic clinical features, and represent a problem of voluntary control and perception despite normal basic structure of the nervous system. The historical view of FND as a diagnosis of exclusion can lead to unnecessary health care resource utilization and high direct and indirect economic costs. A systematic review was performed using Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines to assess these economic costs and to assess for any cost-effective treatments. METHODS We searched electronic databases (PubMed, PsycInfo, MEDLINE, EMBASE, and the National Health Service Economic Evaluations Database of the University of York) for original, primary research publications between inception of the databases and April 8, 2022. A hand search of conference abstracts was also conducted. Key search terms included "functional neurologic disorder," "conversion disorder," and "functional seizures." Reviews, case reports, case series, and qualitative studies were excluded. We performed a descriptive and qualitative thematic analysis of the resulting studies. RESULTS The search resulted in a total of 3,244 studies. Sixteen studies were included after screening and exclusion of duplicates. These included the following: cost-of-illness (COI) studies that were conducted alongside cohort studies without intervention and those that included a comparator group, for example, another neurologic disorder (n = 4); COI studies that were conducted alongside cohort studies without intervention and those that did not include a comparator group (n = 4); economic evaluations of interventions that were either pre-post cohort studies (n = 6) or randomized controlled trials (n = 2). Of these, 5 studies assessed active interventions, and 3 studies assessed costs before and after a definitive diagnosis of FND. Studies showed an excess annual cost associated with FND (range $4,964-$86,722 2021 US dollars), which consisted of both direct and large indirect costs. Studies showed promise that interventions, including provision of a definitive diagnosis, could reduce this cost (range 9%-90.7%). No cost-effective treatments were identified. Study comparison was limited by study design and location heterogeneity. DISCUSSION FND is associated with a significant use of health care resources, resulting in economic costs to both the patient and the taxpayer and intangible losses. Interventions, including accurate diagnosis, seem to offer an avenue toward reducing these costs.
Collapse
Affiliation(s)
- Brian O'Mahony
- From the Institute of Psychiatry, Psychology & Neuroscience (B.O.M.), King's College London; Molecular and Clinical Sciences Research Institute (G.N., M.J.E.), St. George's University of London; Department of Clinical and Experimental Epilepsy (S.B., M.Y.), University College London, Institute of Neurology; Department of Neurology (S.B., M.Y.), National Hospital for Neurology and Neurosurgery; Epilepsy Society (S.B., M.Y.), Chalfont Centre for Epilepsy; and Neurology Department (M.J.E.), Atkinson Morley Regional Neuroscience Centre, St. George's University Hospitals, London, United Kingdom
| | - Glenn Nielsen
- From the Institute of Psychiatry, Psychology & Neuroscience (B.O.M.), King's College London; Molecular and Clinical Sciences Research Institute (G.N., M.J.E.), St. George's University of London; Department of Clinical and Experimental Epilepsy (S.B., M.Y.), University College London, Institute of Neurology; Department of Neurology (S.B., M.Y.), National Hospital for Neurology and Neurosurgery; Epilepsy Society (S.B., M.Y.), Chalfont Centre for Epilepsy; and Neurology Department (M.J.E.), Atkinson Morley Regional Neuroscience Centre, St. George's University Hospitals, London, United Kingdom
| | - Sallie Baxendale
- From the Institute of Psychiatry, Psychology & Neuroscience (B.O.M.), King's College London; Molecular and Clinical Sciences Research Institute (G.N., M.J.E.), St. George's University of London; Department of Clinical and Experimental Epilepsy (S.B., M.Y.), University College London, Institute of Neurology; Department of Neurology (S.B., M.Y.), National Hospital for Neurology and Neurosurgery; Epilepsy Society (S.B., M.Y.), Chalfont Centre for Epilepsy; and Neurology Department (M.J.E.), Atkinson Morley Regional Neuroscience Centre, St. George's University Hospitals, London, United Kingdom
| | - Mark J Edwards
- From the Institute of Psychiatry, Psychology & Neuroscience (B.O.M.), King's College London; Molecular and Clinical Sciences Research Institute (G.N., M.J.E.), St. George's University of London; Department of Clinical and Experimental Epilepsy (S.B., M.Y.), University College London, Institute of Neurology; Department of Neurology (S.B., M.Y.), National Hospital for Neurology and Neurosurgery; Epilepsy Society (S.B., M.Y.), Chalfont Centre for Epilepsy; and Neurology Department (M.J.E.), Atkinson Morley Regional Neuroscience Centre, St. George's University Hospitals, London, United Kingdom
| | - Mahinda Yogarajah
- From the Institute of Psychiatry, Psychology & Neuroscience (B.O.M.), King's College London; Molecular and Clinical Sciences Research Institute (G.N., M.J.E.), St. George's University of London; Department of Clinical and Experimental Epilepsy (S.B., M.Y.), University College London, Institute of Neurology; Department of Neurology (S.B., M.Y.), National Hospital for Neurology and Neurosurgery; Epilepsy Society (S.B., M.Y.), Chalfont Centre for Epilepsy; and Neurology Department (M.J.E.), Atkinson Morley Regional Neuroscience Centre, St. George's University Hospitals, London, United Kingdom.
| |
Collapse
|
23
|
Mavroudis I, Chatzikonstantinou S, Petridis F, Palade OD, Ciobica A, Balmus IM. Functional Overlay Model of Persistent Post-Concussion Syndrome. Brain Sci 2023; 13:1028. [PMID: 37508960 PMCID: PMC10377031 DOI: 10.3390/brainsci13071028] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/28/2023] [Accepted: 07/02/2023] [Indexed: 07/30/2023] Open
Abstract
Persistent post-concussion syndrome (PPCS) is a complex and debilitating condition that can develop after head concussions or mild traumatic brain injury (mTBI). PPCS is characterized by a wide range of symptoms, including headaches, dizziness, fatigue, cognitive deficits, and emotional changes, that can persist for months or even years after the initial injury. Despite extensive research, the underlying mechanisms of PPCS are still poorly understood; furthermore, there are limited resources to predict PPCS development in mTBI patients and no established treatment. Similar to PPCS, the etiology and pathogenesis of functional neurological disorders (FNDs) are not clear neither fully described. Nonspecific multifactorial interactions that were also seen in PPCS have been identified as possible predispositions for FND onset and progression. Thus, we aimed to describe a functional overlay model of PPCS that emphasizes the interplay between functional and structural factors in the development and perpetuation of PPCS symptoms. Our model suggests that the initial brain injury triggers a cascade of physiological and psychological processes that disrupt the normal functioning of the brain leading to persistent symptoms. This disruption can be compounded by pre-existing factors, such as genetics, prior injury, and psychological distress, which can increase the vulnerability to PPCS. Moreover, specific interventions, such as cognitive behavioral therapy, neurofeedback, and physical exercise can target the PPCS treatment approach. Thus, the functional overlay model of PPCS provides a new framework for understanding the complex nature of this condition and for developing more effective treatments. By identifying and targeting specific functional factors that contribute to PPCS symptoms, clinicians and researchers can improve the diagnosis, management, and ultimately, outcomes of patients with this condition.
Collapse
Affiliation(s)
- Ioannis Mavroudis
- Department of Neuroscience, Leeds Teaching Hospitals, Leeds LS2 9JT, UK
- Faculty of Medicine, Leeds University, Leeds LS2 9JT, UK
| | | | - Foivos Petridis
- Third Department of Neurology, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
| | - Octavian Dragos Palade
- Surgical Department, Faculty of Medicine, University of Medicine and Pharmacy "Grigore T. Popa", 700115 Iasi, Romania
| | - Alin Ciobica
- Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University of Iasi, 20th Carol I Avenue, 700506 Iasi, Romania
- Centre of Biomedical Research, Romanian Academy, B dul Carol I, No. 8, 700506 Iasi, Romania
- Academy of Romanian Scientists, Splaiul Independentei nr. 54, Sector 5, 050094 Bucuresti, Romania
| | - Ioana-Miruna Balmus
- Department of Exact Sciences and Natural Sciences, Institute of Interdisciplinary Research, "Alexandru Ioan Cuza" University of Iasi, Alexandru Lapusneanu Street, No. 26, 700057 Iasi, Romania
| |
Collapse
|
24
|
Garcin B, Roze E, Daubigney A, Carle-Toulemonde G, Degos B, Hingray C. [Diagnostic criteria, epidemiology and assessment of patients with functional neurological disorders]. L'ENCEPHALE 2023:S0013-7006(23)00083-0. [PMID: 37400337 DOI: 10.1016/j.encep.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 06/05/2023] [Indexed: 07/05/2023]
Abstract
Functional neurological disorders (FND) are symptoms that can affect a variety of functions including motor, sensory and cognitive. These symptoms are genuinely experienced by the patient and are related to a functional disorder rather than a structural one. There is little epidemiological data on these disorders, but their frequency is well established in clinical practice, it is the second most frequent reason for consultation in Neurology. Despite of the frequency of the disorder, general practitioners and specialists are insufficiently trained in the disease, and patients often suffer from stigmatization and/or unnecessary investigations. It is therefore important to be aware of the diagnostic approach to FND, which mostly relies on positive clinical signs. Psychiatric evaluation can help with the characterization of predisposing, precipitating and perpetuating factors of the symptoms (according to the 3P biopsychosocial model related to FND), and guide their management. Finally, diagnosis explanation is a crucial step in the management of the disease, which can in itself have a therapeutic effect, and allow the patient to adhere to the treatments.
Collapse
Affiliation(s)
- Béatrice Garcin
- Service de neurologie, hôpital Avicenne, hôpitaux universitaires de Paris - Seine-Saint-Denis, Sorbonne Paris Nord, Assistance publique-Hôpitaux de Paris, 93000 Bobigny, France.
| | - Emmanuel Roze
- Inserm, CNRS, Institut du cerveau, Hôpital Salpêtrière, DMU Neurosciences, Sorbonne université, Assistance publique-Hôpitaux de Paris, 75013 Paris, France
| | - Antoine Daubigney
- Équipe mobile de neuropsychiatrie, pôle de neurosciences cliniques, CHU de Bordeaux et pôle de psychiatrie générale et universitaire du centre hospitalier Charles-Perrens, 33076 Bordeaux, France
| | - Guilhem Carle-Toulemonde
- Cabinet de psychosomatique et stimulation magnétique transcrânienne, clinique Saint-Exupery, 31400 Toulouse, France
| | - Bertrand Degos
- Service de neurologie, hôpital Avicenne, hôpitaux universitaires de Paris - Seine-Saint-Denis, Sorbonne Paris Nord, Assistance publique-Hôpitaux de Paris, 93000 Bobigny, France
| | | |
Collapse
|
25
|
Demartini B, Nisticò V, Benayoun C, Cigognini AC, Ferrucci R, Vezzoli A, Dellanoce C, Gambini O, Priori A, Mrakic-Sposta S. Glutamatergic dysfunction, neuroplasticity, and redox status in the peripheral blood of patients with motor conversion disorders (functional movement disorders): a first step towards potential biomarkers discovery. Transl Psychiatry 2023; 13:212. [PMID: 37330537 DOI: 10.1038/s41398-023-02500-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 05/22/2023] [Accepted: 05/30/2023] [Indexed: 06/19/2023] Open
Abstract
Functional movement disorders (FMD) are characterized by the presence of neurological symptoms that cannot be explained by typical neurological diseases or other medical conditions. First evidence showed that, compared to healthy controls (CTR), FMD patients presented increased levels of glutamate+glutamine in the anterior cingulate cortex/medial prefrontal cortex, and decreased levels of glutamate in the cerebrospinal fluid, suggesting that a glutamatergic dysfunction might play a role in FMD pathophysiology. In this study, 12 FMD patients and 20 CTR were recruited and underwent venous blood sampling and urine collection: levels of glutamate, BDNF, dopamine, oxidative stress, creatinine, neopterin, and uric acid were analyzed. Participants also underwent a psychometric assessment investigating depression, anxiety, and alexithymia. We found that levels of glutamate, BDNF, and dopamine were significantly lower in the blood of FMD patients than CTR. Glutamate and dopamine levels were positively associated with levels of alexithymia. Our findings give further evidence that glutamatergic dysfunction might be involved in the pathophysiology of FMD, possibly representing a biomarker of disease; moreover, since glutamatergic and dopaminergic systems are closely interconnected, our results might have a relevance in terms of treatment options for FMD patients.
Collapse
Affiliation(s)
- Benedetta Demartini
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Milano, Italy.
- Unità di Psichiatria 52, Presidio San Paolo, ASST Santi Paolo e Carlo, Milano, Italy.
- "Aldo Ravelli" Research Center for Neurotechnology and Experimental Brain Therapeutics, Università degli Studi di Milano, Milano, Italy.
| | - Veronica Nisticò
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Milano, Italy.
- "Aldo Ravelli" Research Center for Neurotechnology and Experimental Brain Therapeutics, Università degli Studi di Milano, Milano, Italy.
- Dipartimento di Psicologia, Università degli Studi di Milano - Bicocca, Milano, Italy.
| | - Caroline Benayoun
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Milano, Italy
| | - Anna Chiara Cigognini
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Milano, Italy
| | - Roberta Ferrucci
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Milano, Italy
- Unità di Psichiatria 52, Presidio San Paolo, ASST Santi Paolo e Carlo, Milano, Italy
- III Clinica Neurologica, Presidio San Paolo, ASST Santi Paolo e Carlo, Milano, Italy
| | - Alessandra Vezzoli
- Institute of Clinical Physiology - Milan, National Research Council (CNR), Milano, Italy
| | - Cinzia Dellanoce
- Institute of Clinical Physiology - Milan, National Research Council (CNR), Milano, Italy
| | - Orsola Gambini
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Milano, Italy
- Unità di Psichiatria 52, Presidio San Paolo, ASST Santi Paolo e Carlo, Milano, Italy
- "Aldo Ravelli" Research Center for Neurotechnology and Experimental Brain Therapeutics, Università degli Studi di Milano, Milano, Italy
| | - Alberto Priori
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Milano, Italy
- Unità di Psichiatria 52, Presidio San Paolo, ASST Santi Paolo e Carlo, Milano, Italy
- III Clinica Neurologica, Presidio San Paolo, ASST Santi Paolo e Carlo, Milano, Italy
| | - Simona Mrakic-Sposta
- Institute of Clinical Physiology - Milan, National Research Council (CNR), Milano, Italy
| |
Collapse
|
26
|
Garcia A. Pediatric Functional Neurologic Disorders. Pediatr Clin North Am 2023; 70:589-601. [PMID: 37121644 DOI: 10.1016/j.pcl.2023.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Functional neurologic disorders are common in the pediatric population. Recently, there has been a renewed focus on functional neurologic disorders, leading to improvements in diagnosis and management. This review focuses on updates in clinical presentation, diagnosis, pathophysiology (including neuroimaging), and treatment of functional neurologic disorders in the pediatric population.
Collapse
Affiliation(s)
- Angela Garcia
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, UPMC Children's Hospital of Pittsburgh, 4401 Penn Avenue, Suite 1200, Pittsburgh, PA 15201, USA.
| |
Collapse
|
27
|
Mathew A, Abu Libdeh A, Patrie J, Garris J. Outcome in Pediatric Functional Tic Disorders Diagnosed During the COVID-19 Pandemic. J Neuropsychiatry Clin Neurosci 2023; 35:393-397. [PMID: 37259545 DOI: 10.1176/appi.neuropsych.20220186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVES The incidence of pediatric functional tics has surged during the COVID-19 pandemic with little known about prognosis. To address this knowledge gap, the investigators examined clinical courses of functional tics diagnosed during the pandemic and explored factors predicting prognosis. METHODS Study personnel reviewed electronic medical records of 29 pediatric patients diagnosed as having functional tics between March 1, 2020, and December 31, 2021, and estimated Clinical Global Impression-Improvement (CGI-I) scores at follow-up encounters. Twenty patient-guardian dyads completed telephone interviews. Logistic regression models were used to identify possible predictors of clinical trajectories. RESULTS Of the 29 patients, 21 (82%) reported at least some improvement since diagnosis at the time of the last follow-up, with a median CGI-I score of 2 (much improved). During the telephone interview, 11 of 20 patients noted ongoing interference from tics, and 16 of 20 agreed with the diagnosis of functional tics. Median time from symptom onset to diagnosis was 197 days, with most patients reporting at least a mild reduction of symptoms (CGI-I score <4) at a median of 21 days after diagnosis. At a median follow-up time of 198 days after diagnosis, patients reported significant but not complete improvement. Greater age and longer time to diagnosis decreased odds of improvement within 1 month of diagnosis. CONCLUSIONS Most patients showed improvements in but not the resolution of functional tic symptoms after diagnosis. These data support the importance of early diagnosis for functional tics.
Collapse
Affiliation(s)
- Alexander Mathew
- School of Medicine (Mathew), Department of Neurology (Abu Libdeh, Garris), Public Health Sciences (Patrie), and Department of Pediatrics (Garris), University of Virginia, Charlottesville; Faculty of Medicine, Al-Balqa Applied University, Salt, Jordan (Abu Libdeh)
| | - Amal Abu Libdeh
- School of Medicine (Mathew), Department of Neurology (Abu Libdeh, Garris), Public Health Sciences (Patrie), and Department of Pediatrics (Garris), University of Virginia, Charlottesville; Faculty of Medicine, Al-Balqa Applied University, Salt, Jordan (Abu Libdeh)
| | - James Patrie
- School of Medicine (Mathew), Department of Neurology (Abu Libdeh, Garris), Public Health Sciences (Patrie), and Department of Pediatrics (Garris), University of Virginia, Charlottesville; Faculty of Medicine, Al-Balqa Applied University, Salt, Jordan (Abu Libdeh)
| | - Jordan Garris
- School of Medicine (Mathew), Department of Neurology (Abu Libdeh, Garris), Public Health Sciences (Patrie), and Department of Pediatrics (Garris), University of Virginia, Charlottesville; Faculty of Medicine, Al-Balqa Applied University, Salt, Jordan (Abu Libdeh)
| |
Collapse
|
28
|
Palmer DD, Gamble M, Higgins M, Maley J, Watson E. Outcomes of an Integrated Multidisciplinary Clinic for People with Functional Neurological Disorder. Mov Disord Clin Pract 2023; 10:967-973. [PMID: 37332646 PMCID: PMC10272915 DOI: 10.1002/mdc3.13757] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/31/2023] [Accepted: 04/15/2023] [Indexed: 06/20/2023] Open
Abstract
Background Functional neurological disorder (FND) is a disabling condition which has poor prognosis without treatment. This study aimed to evaluate the effectiveness of an outpatient integrated multidisciplinary intervention for the condition. Objectives This study aimed to assess the outcomes of a pilot integrated multidisciplinary treatment clinic for FND with motor symptoms. Methods Patients were seen simultaneously by a neurology doctor, a physiotherapist, a clinical psychologist, and sometimes a psychiatrist. The primary endpoint was change in quality of life measured by Short Form-36 (SF-36). Secondary outcomes were change in work and social participation measured by the Work and Social Adjustment Scale (WSAS), ability to participate in full-time or part-time employment, self-rated understanding of FND, and self-rated agreement with the diagnosis of FND. Over the year, 13 patients were recruited to the clinic, and 11 agreed to participate in the outcome study. Results Statistically significant improvements in quality of life were seen across seven out of eight domains of the SF-36, with improvements in individual domains of between 23 and 39 points (of a possible 100). Mean Work and Social Adjustment Scale score halved from 26 to 13 (worst possible is 40). Of the 12 patients treated, one began to work again after complete unemployment, and two who had been working reduced hours due to disability resumed full time work. No patients had worsened occupational status. Conclusions This intervention is associated with substantial improvements in quality of life and function, and may be more amenable to delivery at non-specialist centers than other described interventions for FND.
Collapse
Affiliation(s)
- David D.G. Palmer
- Department of NeurologyCapital and Coast District Health BoardWellingtonNew Zealand
| | - Mary Gamble
- ORA Wellington Inpatient Physiotherapy TeamCapital and Coast District Health BoardWellingtonNew Zealand
| | - Matthew Higgins
- Consultation Liaison Psychiatry Service, Mental Health, Addictions and Intellectual Disability ServicesCapital and Coast District Health BoardWellingtonNew Zealand
| | - Jenny Maley
- Consultation Liaison Psychiatry Service, Mental Health, Addictions and Intellectual Disability ServicesCapital and Coast District Health BoardWellingtonNew Zealand
| | - Eloise Watson
- Department of NeurologyCapital and Coast District Health BoardWellingtonNew Zealand
| |
Collapse
|
29
|
Kelmanson AN, Kalichman L, Treger I. Physical Rehabilitation of Motor Functional Neurological Disorders: A Narrative Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:ijerph20105793. [PMID: 37239521 DOI: 10.3390/ijerph20105793] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/04/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023]
Abstract
Functional Neurological Disorders (FNDs) are one of the most common and disabling neurological disorders, affecting approximately 10-30% of patients in neurology clinics. FNDs manifest as a range of motor, sensory, and cognitive symptoms that are not explained by organic disease. This narrative review aims to assess the current state of knowledge in physical-based rehabilitation for motor/movement FNDs in the adult population, with the goal of improving research and medical care for this patient population. To ensure optimal outcomes for patients, it is critical to consider several domains pertaining to FNDs, including which field of discipline they should belong to, how to investigate and test, methods for rating outcome measures, and optimal courses of treatment. In the past, FNDs were primarily treated with psychiatric and psychological interventions. However, recent literature supports the inclusion of physical rehabilitation in the treatment of FNDs. Specifically, physical-based approaches tailored to FNDs have shown promising results. This review utilized a comprehensive search of multiple databases and inclusion criteria to identify relevant studies.
Collapse
Affiliation(s)
- Ayelet N Kelmanson
- Department of Physical Therapy, Recanati School for Community Health Professions, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Leonid Kalichman
- Department of Physical Therapy, Recanati School for Community Health Professions, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Iuly Treger
- Department of Rehabilitation, Soroka Medical Center, Beer Sheva 84105, Israel
- Department of Medicine, Faculty for Health Sciences, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| |
Collapse
|
30
|
Forejtová Z, Serranová T, Sieger T, Slovák M, Nováková L, Věchetová G, Růžička E, Edwards MJ. The complex syndrome of functional neurological disorder. Psychol Med 2023; 53:3157-3167. [PMID: 34991744 DOI: 10.1017/s0033291721005225] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Patients with functional neurological disorders (FND) often present with multiple motor, sensory, psychological and cognitive symptoms. In order to explore the relationship between these common symptoms, we performed a detailed clinical assessment of motor, non-motor symptoms, health-related quality of life (HRQoL) and disability in a large cohort of patients with motor FND. To understand the clinical heterogeneity, cluster analysis was used to search for subgroups within the cohort. METHODS One hundred fifty-two patients with a clinically established diagnosis of motor FND were assessed for motor symptom severity using the Simplified Functional Movement Disorder Rating Scale (S-FMDRS), the number of different motor phenotypes (i.e. tremor, dystonia, gait disorder, myoclonus, and weakness), gait severity and postural instability. All patients then evaluated each motor symptom type severity on a Likert scale and completed questionnaires for depression, anxiety, pain, fatigue, cognitive complaints and HRQoL. RESULTS Significant correlations were found among the self-reported and all objective motor symptoms severity measures. All self-reported measures including HRQoL correlated strongly with each other. S-FMDRS weakly correlated with HRQoL. Hierarchical cluster analysis supplemented with gap statistics revealed a homogenous patient sample which could not be separated into subgroups. CONCLUSIONS We interpret the lack of evidence of clusters along with a high degree of correlation between all self-reported and objective measures of motor or non-motor symptoms and HRQoL within current neurobiological models as evidence to support a unified pathophysiology of 'functional' symptoms. Our results support the unification of functional and somatic syndromes in classification schemes and for future mechanistic and therapeutic research.
Collapse
Affiliation(s)
- Zuzana Forejtová
- Department of Neurology and Centre of Clinical Neuroscience, General University Hospital and First Faculty of Medicine, Charles University, Prague, 128 21, Czech Republic
| | - Tereza Serranová
- Department of Neurology and Centre of Clinical Neuroscience, General University Hospital and First Faculty of Medicine, Charles University, Prague, 128 21, Czech Republic
| | - Tomáš Sieger
- Department of Neurology and Centre of Clinical Neuroscience, General University Hospital and First Faculty of Medicine, Charles University, Prague, 128 21, Czech Republic
- Department of Cybernetics, Faculty of Electrical Engineering, Czech Technical University, Prague, 166 27, Czech Republic
| | - Matěj Slovák
- Department of Neurology and Centre of Clinical Neuroscience, General University Hospital and First Faculty of Medicine, Charles University, Prague, 128 21, Czech Republic
| | - Lucia Nováková
- Department of Neurology and Centre of Clinical Neuroscience, General University Hospital and First Faculty of Medicine, Charles University, Prague, 128 21, Czech Republic
| | - Gabriela Věchetová
- Department of Neurology and Centre of Clinical Neuroscience, General University Hospital and First Faculty of Medicine, Charles University, Prague, 128 21, Czech Republic
| | - Evžen Růžička
- Department of Neurology and Centre of Clinical Neuroscience, General University Hospital and First Faculty of Medicine, Charles University, Prague, 128 21, Czech Republic
| | - Mark J Edwards
- Neuroscience Research Centre, Institute of Molecular and Clinical Sciences, St George's University of London, London, SW17 0RE, UK
| |
Collapse
|
31
|
Onofrj M, Ajdinaj P, Digiovanni A, Malek N, Martinotti G, Ferro FM, Russo M, Thomas A, Sensi SL. Functional Neurologic Disorders, disorders to be managed by neurologists, or are neurologists wandering in a dangerous field with inadequate resources? Front Psychiatry 2023; 14:1120981. [PMID: 37009111 PMCID: PMC10064068 DOI: 10.3389/fpsyt.2023.1120981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 02/24/2023] [Indexed: 03/19/2023] Open
Abstract
In recent years, some neurologists reconsidered their approach to Medically Unexplained Symptoms and proposed Functional Neurologic Disorders (FND) as a new entity, claiming that neurology could offer alternative treatment options to the psychotherapies provided in psychiatry settings. FNDs, for this purpose, should include only the disorders listed as Conversion from the Somatic Symptom and Related Disorders (SSRD) group. The present review analyzes the rationale of this position and challenges the arguments provided for its support. The review also discusses the systematization of these disorders as provided by public health systems. It outlines risks stemming from economic support and public funding uncertainty, given their negligible epidemiological dimensions resulting from the parcellation of SSRD. The review underlines the unresolved issue of Factitious Disorders, which are in the same SSRD category of the international classification but are, nonetheless, overlooked by the theoretical proponents of the FND entity. Comorbidity with other psychiatric disorders is also analyzed. We propose a model that supports the continuum between different SSRD conditions, including Factitious Disorders. The model is based on the emergence of feigned death reflex and deception from frontal lobe dysfunction. Finally, the paper summarizes the wealth of historical psychiatric and psychodynamic approaches and critical reviews. The study also puts in context the categorization and interpretation efforts provided by the most eminent researchers of the past century.
Collapse
Affiliation(s)
- Marco Onofrj
- Department of Neuroscience, Imaging, and Clinical Sciences, “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
- Center for Advanced Studies and Technology (CAST), “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
- *Correspondence: Marco Onofrj,
| | - Paola Ajdinaj
- Department of Neuroscience, Imaging, and Clinical Sciences, “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
- Center for Advanced Studies and Technology (CAST), “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
| | - Anna Digiovanni
- Department of Neuroscience, Imaging, and Clinical Sciences, “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
- Center for Advanced Studies and Technology (CAST), “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
| | - Naveed Malek
- Barking, Havering, and Redbridge University Hospitals NHS Trust, London, United Kingdom
| | - Giovanni Martinotti
- Department of Neuroscience, Imaging, and Clinical Sciences, “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
- Department of Clinical, Pharmaceutical and Biological Sciences, University of Hertfordshire, Hertfordshire, United Kingdom
| | - Filippo Maria Ferro
- Department of Neuroscience, Imaging, and Clinical Sciences, “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
| | - Mirella Russo
- Department of Neuroscience, Imaging, and Clinical Sciences, “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
- Center for Advanced Studies and Technology (CAST), “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
| | - Astrid Thomas
- Department of Neuroscience, Imaging, and Clinical Sciences, “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
- Center for Advanced Studies and Technology (CAST), “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
| | - Stefano Luca Sensi
- Department of Neuroscience, Imaging, and Clinical Sciences, “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
- Center for Advanced Studies and Technology (CAST), “G. D'Annunzio University” of Chieti-Pescara, Chieti, Italy
| |
Collapse
|
32
|
Edwards MJ, Yogarajah M, Stone J. Why functional neurological disorder is not feigning or malingering. Nat Rev Neurol 2023; 19:246-256. [PMID: 36797425 DOI: 10.1038/s41582-022-00765-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2022] [Indexed: 02/18/2023]
Abstract
Functional neurological disorder (FND) is one of the commonest reasons that people seek help from a neurologist and is for many people a lifelong cause of disability and impaired quality of life. Although the evidence base regarding FND pathophysiology, treatment and service development has grown substantially in recent years, a persistent ambivalence remains amongst health professionals and others as to the veracity of symptom reporting in those with FND and whether the symptoms are not, in the end, just the same as feigned symptoms or malingering. Here, we provide our perspective on the range of evidence available, which in our view provides a clear separation between FND and feigning and malingering. We hope this will provide a further important step forward in the clinical and academic approach to people with FND, leading to improved attitudes, knowledge, treatments, care pathways and outcomes.
Collapse
Affiliation(s)
- Mark J Edwards
- Institute of Psychiatry, Psychology and Neuroscience, Kings College London, London, UK.
| | - Mahinda Yogarajah
- Department of Clinical and Experimental Epilepsy, Institute of Neurology, University College London, London, UK.,National Hospital for Neurology and Neurosurgery, University College London Hospitals, London, UK.,Epilepsy Society, London, UK
| | - Jon Stone
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| |
Collapse
|
33
|
Perjoc RS, Roza E, Vladacenco OA, Teleanu DM, Neacsu R, Teleanu RI. Functional Neurological Disorder-Old Problem New Perspective. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1099. [PMID: 36673871 PMCID: PMC9859618 DOI: 10.3390/ijerph20021099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/29/2022] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
Functional neurological disorder (FND) is a common issue in the pediatric population. The concept and our understanding of functional neurological disorders have changed over the past years, and new etiologic models and treatment plans have been explored. Knowledge about FND in the pediatric population, however, is lacking. The aim of this review is to provide an update on pediatric functional neurological disorder. We conducted a literature search of PubMed and SCOPUS databases and reviewed a total of 85 articles to gain insight into the current understanding of FND etiology, diagnosis, treatment, and prognosis in children and adolescents. Functional and high resolution MRI revealed abnormal connectivity and structural changes in patients with functional symptoms. The diagnostic criteria no longer require the presence of a psychological factor and instead focus on a rule-in diagnosis. Treatment of FND includes a clear communication of the diagnosis and the support of a multidisciplinary team. Although FND typically has a poor prognosis, better outcomes appear to have been achieved in children and young adults. We conclude that pediatric functional neurological disorder is a prevalent pathology and that this patient population has additional specific needs compared to the adult population.
Collapse
Affiliation(s)
- Radu-Stefan Perjoc
- “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- “Dr. Victor Gomoiu” Children’s Hospital, 022102 Bucharest, Romania
| | - Eugenia Roza
- “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- “Dr. Victor Gomoiu” Children’s Hospital, 022102 Bucharest, Romania
| | - Oana Aurelia Vladacenco
- “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- “Dr. Victor Gomoiu” Children’s Hospital, 022102 Bucharest, Romania
| | - Daniel Mihai Teleanu
- “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Emergency University Hospital, 050098 Bucharest, Romania
| | - Roxana Neacsu
- “Dr. Victor Gomoiu” Children’s Hospital, 022102 Bucharest, Romania
| | - Raluca Ioana Teleanu
- “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- “Dr. Victor Gomoiu” Children’s Hospital, 022102 Bucharest, Romania
| |
Collapse
|
34
|
Goldstein AN, Paredes-Echeverri S, Finkelstein SA, Guthrie AJ, Perez DL, Freeburn JL. Speech and language therapy: A treatment case series of 20 patients with functional speech disorder. NeuroRehabilitation 2023; 53:227-238. [PMID: 37599546 DOI: 10.3233/nre-220182] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
BACKGROUND While expert consensus recommendations support the use of speech and language therapy (SLT) for patients with functional speech disorder (FND-speech), there are limited published data on clinical outcomes. OBJECTIVE To retrospectively report the treatment outcomes and clinical characteristics of patients with FND-speech that attended outpatient SLT as part of a multidisciplinary program for functional neurological disorder (FND). METHODS In this case series, we included adult patients with FND-speech that consecutively participated in outpatient SLT at our institution between October 2014 and September 2021. Baseline demographic and neuropsychiatric characteristics were extracted from the medical records, along with data on FND-speech phenotypes, number of treatment sessions received, and clinician-determined outcomes. Only descriptive statistics were used to report findings. RESULTS Twenty patients met inclusion criteria; ages ranged from 21-77, with a mean of 51.6±16.2 years. 85% of the cohort presented with mixed FND-speech symptoms. Patients attended a range of 2-37 visits, with an average of 9.2±8.0 visits over 4.4±3.5 months. At the last treatment session, 3 patients were asymptomatic, 15 had improved, and 2 had not improved; 8 individuals that improved received video telehealth interventions. CONCLUSION This case series lends additional support for outpatient SLT in the assessment and management of individuals with FND-speech, and may help clarify patient and provider treatment expectations. Additional prospective research is needed to investigate baseline predictors of treatment response and further define the optimal frequency, intensity, duration, and clinical setting for SLT delivery in this population.
Collapse
Affiliation(s)
- Alexa N Goldstein
- Functional Neurological Disorder Unit, Division of Behavioral Neurology and Integrated Brain Medicine, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Sara Paredes-Echeverri
- Functional Neurological Disorder Unit, Division of Behavioral Neurology and Integrated Brain Medicine, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Sara A Finkelstein
- Functional Neurological Disorder Unit, Division of Behavioral Neurology and Integrated Brain Medicine, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Andrew J Guthrie
- Functional Neurological Disorder Unit, Division of Behavioral Neurology and Integrated Brain Medicine, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - David L Perez
- Functional Neurological Disorder Unit, Division of Behavioral Neurology and Integrated Brain Medicine, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Division of Neuropsychiatry, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jennifer L Freeburn
- Functional Neurological Disorder Unit, Division of Behavioral Neurology and Integrated Brain Medicine, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Department of Speech, Language, and Swallowing Disorders, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| |
Collapse
|
35
|
Nguyen AT, Hemphill S, Donahue B, Menendez M, Rodriguez S, Caruso TJ. Use of virtual reality for targeted physical rehabilitation: Case report on managing functional motor disorder. J Pediatr Rehabil Med 2023; 16:415-423. [PMID: 36120795 DOI: 10.3233/prm-210009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Virtual reality (VR) technology has seen increasing use in physical rehabilitation and in the management of acute and chronic pain. Functional movement disorders (FMDs) are a source of disability with no known association to neurologic pathology, and patients are generally offered multidisciplinary treatment approaches to improve functional movement. However, patients who are not compliant with rehabilitation may have persistent FMD and long-term disability. Given VR's use in physical rehabilitation, it may serve as a useful adjunct for the management of FMD. Utilizing an application called MovementTM to create a playlist of targeted applications for the restoration of motor function and balance, this case study presents the application of VR as a tool to engage patients in physical therapy for the management of FMD. The VR games were selected to encourage movement while customization of levels within the games facilitated achievement of physical therapy goals. Physical rehabilitation aided by VR, when used in collaboration with a multidisciplinary care team, may be used to facilitate recovery from FMD.
Collapse
Affiliation(s)
- Alan T Nguyen
- Oakland University William Beaumont School of Medicine, Rochester, MI, USA
| | - Sydney Hemphill
- Department of Anesthesiology, Perioperative, and Pain Medicine, Lucile Packard Children's Hospital Stanford, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Bridgette Donahue
- Department of Physical Therapy and Rehabilitation, Lucile Packard Children'sHospital Stanford, Stanford University School of Medicine, PaloAlto, CA, USA
| | - Maria Menendez
- Department of Anesthesiology, Perioperative, and Pain Medicine, Lucile Packard Children's Hospital Stanford, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Samuel Rodriguez
- Department of Anesthesiology, Perioperative, and Pain Medicine, Lucile Packard Children's Hospital Stanford, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Thomas J Caruso
- Department of Anesthesiology, Perioperative, and Pain Medicine, Lucile Packard Children's Hospital Stanford, Stanford University School of Medicine, Palo Alto, CA, USA
| |
Collapse
|
36
|
Autism Spectrum Disorder May Be Highly Prevalent in People with Functional Neurological Disorders. J Clin Med 2022; 12:jcm12010299. [PMID: 36615098 PMCID: PMC9821674 DOI: 10.3390/jcm12010299] [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: 10/27/2022] [Revised: 12/13/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023] Open
Abstract
Recent observations suggest that autism spectrum disorder (ASD) co-occurs in people with a functional neurological disorder (FND), but little systematic data are available on the relationship between FND and autism. The study aimed to assess the self-reported autistic traits via a standardized questionnaire and the prevalence of previously diagnosed ASD among people with FND and their 1st-degree relatives. We performed a survey of members of the patient organization FNDHope, using a self-completed questionnaire for screening for autistic traits and ASD: the adult autism subthreshold spectrum (AdAS spectrum). There were 344 respondents diagnosed with FND with a mean age of 39.8 ± 11.6 years (female sex 90%). Eight per cent of respondents volunteered a previous diagnosis of ASD, and 24% reported a 1st-degree relative with a formal diagnosis of ASD, mostly their children. We found that 69% of respondents had scores in the AdAS spectrum indicating a clinically significant ASD and 21% indicating autistic traits. Further studies are needed to provide more evidence regarding the prevalence of ASD in people with FND and how this may influence the aetiology, treatment selection and prognosis.
Collapse
|
37
|
Reid M, Mitchell SD, Mitchell KM, Sidiropoulos C. Efficacy of a 5-day, intensive, multidisciplinary, outpatient physical and occupational therapy protocol in the treatment of functional movement disorders: A retrospective study. J Neurol Sci 2022; 443:120461. [PMID: 36308845 DOI: 10.1016/j.jns.2022.120461] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 09/17/2022] [Accepted: 10/11/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND The use of rehabilitation services has been shown to be beneficial for patients with functional movement disorders (FMD). However, there is great variability in the type of rehabilitation services utilized. In the present study we aimed at determining the efficacy of an intense outpatient physical rehabilitation program as a treatment modality for patients with FMD. METHODS Eighteen participants underwent treatment in a specialized outpatient rehabilitation program utilizing a multidisciplinary approach for the treatment of FMD. Participants completed a series of tests on day one and day five of the program. RESULTS Results indicated statistically significant improvements in all but one motor and gait outcomes in patients with functional movement disorders treated with physical rehabilitation. CONCLUSION These results provide support for the continued use of physical and occupational therapy for functional movement disorder patients. Further research is needed to fully validate these findings and there remains a need for further study into multidisciplinary approaches that may be even more efficacious.
Collapse
Affiliation(s)
- Megan Reid
- The Recovery Project, LLC, Lansing, MI, United States of America.
| | - Steven D Mitchell
- Department of Neurology, Bronson Methodist Hospital, Kalamazoo, MI, United States of America.
| | - Katharine M Mitchell
- College of Communication Arts and Sciences, Michigan State University, East Lansing, MI, United States of America.
| | - Christos Sidiropoulos
- Department of Neurology, Michigan State University, East Lansing, MI, United States of America.
| |
Collapse
|
38
|
Muacevic A, Adler JR, Aldharman SS, Alburayman MZ, Alrashed MH, Al-Sultan AA, Alrahil R. Approach and Clinical Practice of Functional Movement Disorders Among Neurologists in Saudi Arabia. Cureus 2022; 14:e32770. [PMID: 36694532 PMCID: PMC9858697 DOI: 10.7759/cureus.32770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
Background Functional movement disorders (FMDs) are neurological disorders that consist of abnormal and involuntary movements that have no specific organic cause. Given the prevalence of FMDs and the scarcity of information on neurologists' approaches to FMDs, we aimed to assess the neurologists' approaches and clinical practice in managing FMDs in Saudi Arabia. Methods A validated online questionnaire in English was used. The data were collected through a self-reported questionnaire. The data were analyzed using the statistical software IBM SPSS version 22 (SPSS, Inc., Armonk, NY). Results A total of 231 neurologists completed the study survey. A total of 129 (55.8%) were males. Regarding the predictors for a diagnosis other than FMD, the highest rating predictor was for evidence of physical injury and lack of psychiatric history of psychological stressors, while the lowest rating was for the male gender. Regarding the effective treatment strategies of FMD, the most effective treatment strategy reported by the clinicians was patient education, while the least was alternative or complementary medicine. The management ability of clinicians was generally restricted by cultural beliefs about psychological illnesses and the availability of referral services. The reported predictors by clinicians for a better prognosis of FMD include acceptance of the diagnosis by the patient followed by identification and management of psychological stressors and concurrent psychiatric disorder and a supportive social network. Generally, the most used terminology in this study was "functional movement disorder". Conclusions There is a variation in the approach and clinical practice of FMD among neurologists in Saudi Arabia. Shared knowledge regarding diagnosis and effective management is crucial. Collaborative efforts are required to establish practice guidelines in the future.
Collapse
|
39
|
Emotional Imagery Influences the Adaptive Force in Young Women: Unpleasant Imagery Reduces Instantaneously the Muscular Holding Capacity. Brain Sci 2022; 12:brainsci12101318. [PMID: 36291257 PMCID: PMC9599475 DOI: 10.3390/brainsci12101318] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/23/2022] [Accepted: 09/25/2022] [Indexed: 11/17/2022] Open
Abstract
The link between emotions and motor function has been known for decades but is still not clarified. The Adaptive Force (AF) describes the neuromuscular capability to adapt to increasing forces and was suggested to be especially vulnerable to interfering inputs. This study investigated the influence of pleasant and unpleasant food imagery on the manually assessed AF of elbow and hip flexors objectified by a handheld device in 12 healthy women. The maximal isometric AF was significantly reduced during unpleasant vs. pleasant imagery and baseline (p < 0.001, dz = 0.98−1.61). During unpleasant imagery, muscle lengthening started at 59.00 ± 22.50% of maximal AF, in contrast to baseline and pleasant imagery, during which the isometric position could be maintained mostly during the entire force increase up to ~97.90 ± 5.00% of maximal AF. Healthy participants showed an immediately impaired holding function triggered by unpleasant imagery, presumably related to negative emotions. Hence, AF seems to be suitable to test instantaneously the effect of emotions on motor function. Since musculoskeletal complaints can result from muscular instability, the findings provide insights into the understanding of the causal chain of linked musculoskeletal pain and mental stress. A case example (current stress vs. positive imagery) suggests that the approach presented in this study might have future implications for psychomotor diagnostics and therapeutics.
Collapse
|
40
|
Mishra A, Pandey S. Functional Neurological Disorders: Clinical Spectrum, Diagnosis, and Treatment. Neurologist 2022; 27:276-289. [PMID: 35858632 DOI: 10.1097/nrl.0000000000000453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Functional neurological disorders (FNDs) are common but often misdiagnosed. REVIEW SUMMARY The incidence of FNDs is between 4 and 12 per 100,000, comparable to multiple sclerosis and amyotrophic lateral sclerosis, and it is the second most common diagnosis in neurology clinics. Some clues in the history are sudden onset, intermittent time course, variability of manifestation over time, childhood trauma, and history of other somatic symptoms. Anxiety and depression are common, but not necessarily more than in the general population. Although there are no tests currently capable of demonstrating whether symptoms are willfully produced, there may not be a clear categorical difference between voluntary and involuntary symptoms. The prognosis of an FND is linked to early diagnosis and symptom duration, but unfortunately, the majority of the patients are diagnosed after considerable delays. CONCLUSIONS A positive diagnosis of FNDs can be made on the basis of history and neurological signs without reliance on psychological stressors. Past sensitizing events and neurobiological abnormalities contribute to the pathogenesis of FNDs. Physical rehabilitation and psychological interventions alone or in combination are helpful in the treatment.
Collapse
Affiliation(s)
- Anumeha Mishra
- Department of Neurology, Govind Ballabh Pant Postgraduate institute of medical education and research; New Delhi, India
| | | |
Collapse
|
41
|
Ho TC, Couch SM, Custer PL. Psychogenic Ptosis. Ophthalmic Plast Reconstr Surg 2022; 38:448-451. [PMID: 35323142 DOI: 10.1097/iop.0000000000002157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE Psychogenic ptosis is a rare ophthalmic manifestation of conversion disorder. The aim of this study was to describe the clinical parameters, etiology, psychological, and clinical aspects of psychogenic ptosis. METHODS A retrospective case series was conducted of patients with psychogenic ptosis seen between 1990 to 2020. Medical records were reviewed for patient demographics, including psychiatric history, clinical findings, diagnostic studies, treatment, and resolution rates. A literature review was performed to identify cases of psychogenic ptosis previously published between 1990 and 2020. RESULTS Six female patients (aged 14-60 years) were diagnosed with unilateral psychogenic ptosis. Physical trauma preceded the onset of ptosis in all cases. Imaging studies had been previously obtained in all patients, none of who were correctly diagnosed at time of referral. Associated signs included concurrent brow ptosis, orbicularis oculi spasm, squint on upgaze, and variable levator function and eyelid margin measurements. Four patients had preexisting psychological conditions. Patients were primarily managed with reassurance. CONCLUSIONS Psychogenic ptosis is an often delayed or misdiagnosed condition, resulting in unnecessary referrals and imaging. Psychogenic ptosis should be considered in patients with atypical findings of ptosis including ipsilateral brow depression, orbicularis oculi spasm, squint on upgaze, and variable eyelid measurements. A prior history of minor trauma and female sex were common in this series. Our experience suggests that psychogenic ptosis can often be treated with reassurance, leading to partial or complete resolution. Given the number of patients with comorbid psychiatric conditions, the authors recommend a low threshold for psychiatric or psychological evaluation.
Collapse
Affiliation(s)
- Tiffany C Ho
- John F. Hardesty, MD, Department of Ophthalmology and Visual Sciences, Washington University in St. Louis, St. Louis, Missouri, U.S.A
| | | | | |
Collapse
|
42
|
Ercoli T, Tinazzi M, Geroin C, Marcuzzo E, Erro R, Cuoco S, Ceravolo R, Mazzucchi S, Pilotto A, Padovani A, Romito LM, Eleopra R, Zappia M, Nicoletti A, Dallocchio C, Arbasino C, Bono F, Spano G, Demartini B, Gambini O, Modugno N, Olivola E, Bonanni L, Albanese A, Ferrazzano G, Tessitore A, Lopiano L, Calandra-Buonaura G, Petracca M, Morgante F, Esposito M, Pisani A, Manganotti P, Tesolin L, Teatini F, Stocchi F, Defazio G. Do demographic and clinical features and comorbidities affect the risk of spread to an additional body site in functional motor disorders? J Neural Transm (Vienna) 2022; 129:1271-1276. [PMID: 35972697 PMCID: PMC9468120 DOI: 10.1007/s00702-022-02537-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 08/06/2022] [Indexed: 11/30/2022]
Abstract
The aim of this study is to assess changes in the body distribution and the semeiology of functional motor disorder (FMD) in patients who reported only one or more than one body site affected at FMD onset. Data were obtained from the Italian Registry of Functional Motor Disorders, which included patients with a diagnosis of clinically definite FMDs. The relationship between FMD features and spread to other body sites was estimated by multivariate Cox regression analysis. We identified 201 (49%) patients who reported only one body site affected at FMD onset and 209 (51%) who reported multiple body sites affected at onset. FMD spread from the initial site to another site in 43/201 (21.4%) patients over 5.7 ± 7.1 years in those with only one site affected at FMD onset; FMD spread to an another body site in 29/209 (13.8%) over 5.5 ± 6.5 years. The spread of FMD was associated with non-motor functional symptoms and psychiatric comorbidities only in the patients with one body site affected at FMD onset. Our findings provide novel insight into the natural history of FMD. The number of body sites affected at onset does not seem to have a consistent influence on the risk of spread. Furthermore, our findings suggest that psychiatric comorbidities and non-motor functional symptoms may predict the spread of FMD symptoms, at least in patients with one body site affected at onset.
Collapse
Affiliation(s)
- Tommaso Ercoli
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Michele Tinazzi
- Neurology Unit, Movement Disorders Division, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, P.le Scuro 10, 37134, Verona, Italy.
| | - Christian Geroin
- Neurology Unit, Movement Disorders Division, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, P.le Scuro 10, 37134, Verona, Italy.
| | - Enrico Marcuzzo
- Neurology Unit, Movement Disorders Division, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, P.le Scuro 10, 37134, Verona, Italy
| | - Roberto Erro
- Center for Neurodegenerative Diseases (CEMAND), Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana, University of Salerno, Baronissi, SA, Italy
| | - Sofia Cuoco
- Center for Neurodegenerative Diseases (CEMAND), Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana, University of Salerno, Baronissi, SA, Italy
| | - Roberto Ceravolo
- Center for NeuroDegenerative Diseases Parkinson and Movement Disorders, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Sonia Mazzucchi
- Center for NeuroDegenerative Diseases Parkinson and Movement Disorders, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Andrea Pilotto
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy.,FERB Onlus, Ospedale S. Isidoro, Trescore Balneario, Bergamo, Italy
| | - Alessandro Padovani
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Luigi Michele Romito
- Parkinson and Movement Disorders Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Roberto Eleopra
- Parkinson and Movement Disorders Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Mario Zappia
- Department G.F. Ingrassia, Section of Neurosciences, University of Catania, Catania, Italy
| | - Alessandra Nicoletti
- Department G.F. Ingrassia, Section of Neurosciences, University of Catania, Catania, Italy
| | - Carlo Dallocchio
- Department of Medical Area, Neurology Unit, ASST Pavia, Pavia, Italy
| | - Carla Arbasino
- Department of Medical Area, Neurology Unit, ASST Pavia, Pavia, Italy
| | - Francesco Bono
- Botulinum Toxin Center, Neurology Unit A.O.U. Mater Domini, Catanzaro, Italy
| | - Giorgio Spano
- Botulinum Toxin Center, Neurology Unit A.O.U. Mater Domini, Catanzaro, Italy
| | - Benedetta Demartini
- Aldo Ravelli Research Center for Neurotechnology and Experimental Brain Therapeutics, Department of Health Sciences, University of Milan, Milan, Italy
| | - Orsola Gambini
- Aldo Ravelli Research Center for Neurotechnology and Experimental Brain Therapeutics, Department of Health Sciences, University of Milan, Milan, Italy
| | | | | | - Laura Bonanni
- Department of Neuroscience, Imaging and Clinical Sciences, University G. d'Annunzio, Chieti-Pescara, Italy
| | - Alberto Albanese
- Department of Neurology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Gina Ferrazzano
- Department of Human Neurosciences, Sapienza, University of Rome, Rome, Italy
| | - Alessandro Tessitore
- Department of Advanced Medical and Surgery Sciences, University of Campania-Luigi Vanvitelli, Naples, Italy
| | - Leonardo Lopiano
- Department of Neuroscience-Rita Levi Montalcini, University of Turin, Turin, Italy
| | - Giovanna Calandra-Buonaura
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.,IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Martina Petracca
- Movement Disorder Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Francesca Morgante
- Neurosciences Research Centre, Molecular and Clinical Sciences Neurosciences Research Centre, Molecular and Clinical Sciences Research Institute, St George's University of London, London, UK.,Department of Experimental and Clinical Medicine, University of Messina, Messina, Italy
| | | | - Antonio Pisani
- IRCCS Mondino Foundation, Pavia, Italy.,Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Paolo Manganotti
- Clinical Neurology Unit, Department of Medical, Surgical and Health Services, University of Trieste, Trieste, Italy
| | - Lucia Tesolin
- Functional Movement Disorders Outpatient Clinic, Clinical Neurology and Stroke Unit, Central Country Hospital, Bolzano, Italy
| | - Francesco Teatini
- Functional Movement Disorders Outpatient Clinic, Clinical Neurology and Stroke Unit, Central Country Hospital, Bolzano, Italy
| | - Fabrizio Stocchi
- University and Institute of Research and Medical Care San Raffaele Roma, Rome, Italy
| | - Giovanni Defazio
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| |
Collapse
|
43
|
Lambert F, Venema JS, Tijssen MA, Rosmalen J, Uyttenboogaart M, Luijckx GJ. Long-term follow-up of acute functional stroke mimic in comparison to mild acute ischaemic stroke. J Neurol Neurosurg Psychiatry 2022; 93:679-680. [PMID: 34711649 PMCID: PMC9148978 DOI: 10.1136/jnnp-2021-327379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 10/04/2021] [Indexed: 11/03/2022]
Affiliation(s)
- Franka Lambert
- Neurology, University Medical Centre Groningen, Groningen, The Netherlands
| | - Jacob S Venema
- Neurology, University Medical Centre Groningen, Groningen, The Netherlands
| | - Marina Aj Tijssen
- Neurology, University Medical Centre Groningen, Groningen, The Netherlands
| | - Judith Rosmalen
- Psychiatry and Internal Medicine, University Medical Centre Groningen, Groningen, The Netherlands
| | - Maarten Uyttenboogaart
- Neurology and Radiology, University Medical Centre Groningen, Groningen, The Netherlands
| | - Gert-Jan Luijckx
- Neurology, University Medical Centre Groningen, Groningen, The Netherlands
| |
Collapse
|
44
|
Polich G, Thompson J, Molton I, Herman S, LaFaver K. Intensive rehabilitation for functional motor disorders (FMD) in the United States: A review. NeuroRehabilitation 2022; 50:245-254. [DOI: 10.3233/nre-228007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Higher levels of care in the form of intensive rehabilitation may be appropriate for select patients with a diagnosis of functional motor disorder (FMD). Intensive rehabilitation, as delivered through an outpatient day program or through admission to an inpatient rehabilitation facility, can offer a greater frequency and variety of integrated clinical services than most lower levels of care. OBJECTIVE: Higher levels of rehabilitation for FMD have not yet been well characterized in the literature. In this article, we will focus on the population of FMD patients who begin receiving care in the outpatient setting. METHOD: In this review, we describe a range of options for higher levels of FMD care, evaluate the supporting literature, and weigh the pros and cons of each approach. Several specific examples of intensive rehabilitation programs in the United States will be described. Finally, we will consider existing health systems barriers to each of these outpatient and inpatient higher levels of care. RESULTS: Within a stepped model of care, intensive outpatient day-programs and inpatient rehabilitation may be considered for individuals who present with complex, refractory motor deficits from FMD. For appropriately selected patients, a growing body of literature suggests that time-limited, goal-oriented intensive rehabilitation may provide an effective treatment avenue. CONCLUSION: It remains to be determined whether treatment in intensive care settings, while more costly in the short term, could lead to greater cost savings in the long term. The prospect of telemedicine rehabilitation for FND in terms of efficacy and cost also remains to be determined.
Collapse
Affiliation(s)
- Ginger Polich
- Spaulding Rehabilitation Hospital, Charlestown, MA, USA
| | - Jeffrey Thompson
- Department of Physical Medicine and Rehabilitation, Mayo Medical School, Rochester, MN, USA
| | - Ivan Molton
- Department of Rehabilitation Medicine, University of Washington Medical Center, Seattle, WA, USA
| | - Seth Herman
- Department of Physical Medicine and Rehabilitation, California Rehabilitation Institute, Los Angeles, CA, USA
| | - Kathrin LaFaver
- Department of Neurology, Northwestern Feinberg School of Medicine, Chicago, IL, USA
| |
Collapse
|
45
|
Al Jerdi S, Akhtar N, Mahfoud Z, Kamran S, Shuaib A. Major cardiovascular events in patients presenting with acute stroke: a 5-year follow-up study in patients who had ischaemic stroke and stroke mimics. BMJ Open 2022; 12:e053059. [PMID: 35236730 PMCID: PMC8896026 DOI: 10.1136/bmjopen-2021-053059] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES The long-term acute stroke outcome has not been well studied in the Middle-Eastern population. The primary objective of our study is to compare the long-term outcome of acute ischaemic stroke (IS) with/without previous cerebrovascular/cardiovascular disease (CVD) to stroke mimics (SM) with CVD. SETTINGS AND PARTICIPANTS The Qatar stroke database was reviewed for IS and SM admissions in Qatari Nationals between 2013 and 2019. OUTCOMES Patients were prospectively assessed for development of recurrent stroke, myocardial infarction or death. Frequency of major cardiovascular events (MACEs) were compared between patients with or without a previous CVD. RESULTS There were 1114 stroke admissions (633 IS (prior CVD 211/18.9%), 481 SM (prior CVD 159/14.3%)). Patients with IS/CVD were significantly older versus others (IS/CVD: 68.3±12.2; IS/no CVD: 63.3±14.4; SM/CVD: 67.6±13.1; SM/no CVD: 52.4±17.9. p<0.0001). Vascular risk factors were significantly higher in patients with IS and SM with previous CVD. Functional recovery (90-day mRS 0-2) was significantly better in SM/no CVD (IS/CVD: 55.0%; IS/no CVD: 64.2%; SM/CVD 59.7%; SM/no CVD: 88.8%. p<0.001). MACE occurred in 36% (76/211) IS/CVD, 24.9% (105/422) IS/no CVD, 22.0% (35/179) SM/CVD and only 6.8% (22/322) SM/no CVD. MACE occurred mostly during the first year of follow-up. Mortality 90 days was significantly higher in IS/CVD (IS/CVD 36%; IS/no CVD 24.9%; SM/CVD: 22%; SM/no CVD: 6.8%. p<0.0001). CONCLUSIONS Prior CVD significantly increases the risk of MACE and early mortality in IS or SM patients. Age, male gender, obesity, atrial fibrillation and admission National Institute of Health Stroke Scale also increases risk of MACE during follow-up. Hence, aggressive vascular risk factor modification is needed even in patients with SM.
Collapse
Affiliation(s)
- Salman Al Jerdi
- Department of Neurology, Weill Cornell Medicine - Qatar, Doha, Qatar
| | - Naveed Akhtar
- Neuroscience Institute, Hamad Medical Corp, Doha, Qatar
| | - Ziyad Mahfoud
- Department of Medical Education, Weill Cornell Medicine - Qatar, Doha, Qatar
| | - Saadat Kamran
- Neuroscience Institute, Hamad Medical Corporation, Doha, Ad Dawhah, Qatar
| | - Ashfaq Shuaib
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| |
Collapse
|
46
|
Schwingenschuh P, Espay AJ. Functional tremor. J Neurol Sci 2022; 435:120208. [DOI: 10.1016/j.jns.2022.120208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/02/2021] [Indexed: 10/18/2022]
|
47
|
Oriuwa C, Mollica A, Feinstein A, Giacobbe P, Lipsman N, Perez DL, Burke MJ. Neuromodulation for the treatment of functional neurological disorder and somatic symptom disorder: a systematic review. J Neurol Neurosurg Psychiatry 2022; 93:280-290. [PMID: 35115389 DOI: 10.1136/jnnp-2021-327025] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 12/27/2021] [Indexed: 11/03/2022]
Abstract
Functional neurological disorder and somatic symptom disorder are complex neuropsychiatric conditions that have been linked to circuit-based dysfunction of brain networks. Neuromodulation is a novel therapeutic strategy capable of modulating relevant brain networks, making it a promising potential candidate for the treatment of these patient populations. We conducted a systematic review of Medline, Embase and PsycINFO up to 4 March 2021. Trials investigating neuromodulation devices for the treatment of functional neurological disorder or somatic symptom disorder were selected. Extracted variables included study design, demographic and clinical characteristics, psychiatric comorbidity, neurostimulation protocols, clinical outcome measures and results. 404 studies were identified with 12 meeting inclusion criteria. 221 patients were treated in the included studies with mean study sample size of 18 (4-70). Five studies were randomised clinical trials. Functional motor symptoms (six weakness, four movement disorders) were the most studied subpopulations. Transcranial magnetic stimulation (TMS) was the most frequently used device (10 studies), followed by electroconvulsive therapy (one study) and direct-current stimulation (one study). Treatment protocols varied in intended therapeutic mechanism(s): eight studies aimed to modulate underlying network dysfunction, five aimed to demonstrate movement (one also leveraged the former) and three boosted their primary mechanism with enhanced suggestion/expectation. All but one study reported positive results; however, methodological/outcome heterogeneity, mixed study quality and small sample sizes precluded quantitative meta-analysis. Neuromodulation, particularly TMS for the treatment of functional motor symptoms, shows preliminary promise in a growing line of research. Larger, sham-controlled studies are needed to further establish efficacy and better understand therapeutic mechanisms.
Collapse
Affiliation(s)
- Chika Oriuwa
- Neuropsychiatry Program, Department of Psychiatry, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.,Harquail Centre for Neuromodulation, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Adriano Mollica
- Neuropsychiatry Program, Department of Psychiatry, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.,Harquail Centre for Neuromodulation, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Anthony Feinstein
- Neuropsychiatry Program, Department of Psychiatry, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.,Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Peter Giacobbe
- Neuropsychiatry Program, Department of Psychiatry, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.,Harquail Centre for Neuromodulation, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Nir Lipsman
- Harquail Centre for Neuromodulation, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Division of Neurosurgery, Department of Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - David L Perez
- Department of Neurology, Cognitive Behavioural Neurology Division, Functional Neurological Disorder Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Department of Psychiatry, Neuropsychiatry Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Matthew J Burke
- Neuropsychiatry Program, Department of Psychiatry, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada .,Harquail Centre for Neuromodulation, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Division of Neurology, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.,Division of Cognitive Neurology, Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
48
|
Psychological interventions for treating functional motor symptoms: Scoping review of the literature. Clin Psychol Rev 2022; 94:102146. [DOI: 10.1016/j.cpr.2022.102146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 01/31/2022] [Accepted: 03/16/2022] [Indexed: 11/21/2022]
|
49
|
Finkelstein SA, Adams C, Tuttle M, Saxena A, Perez DL. Neuropsychiatric Treatment Approaches for Functional Neurological Disorder: A How to Guide. Semin Neurol 2022; 42:204-224. [PMID: 35189644 DOI: 10.1055/s-0042-1742773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
There is a growing body of knowledge regarding management of functional neurological disorder (FND). The aim of this article is to guide the clinician through FND clinical management, from delivery of the diagnosis, to creation of a biopsychosocially-informed treatment plan, to troubleshooting common issues that arise throughout longitudinal care. We review the evidence and core principles of both rehabilitative therapies (physical therapy, occupational therapy, and speech and language therapy) and psychological therapies for the treatment of FND, and discuss the benefits of engaging a multidisciplinary and interdisciplinary team. The optimal timing of specific therapeutic interventions is also discussed, emphasizing a patient-centered perspective. Resources for further reading, for both patients and clinicians, are provided throughout. Additional research is needed to further optimize the therapeutic approach to patients with FND, including the need to develop novel treatments for those that do not positively respond to currently available interventions.
Collapse
Affiliation(s)
- Sara A Finkelstein
- Functional Neurological Disorder Unit, Division of Cognitive Behavioral Neurology, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Caitlin Adams
- Functional Neurological Disorder Unit, Division of Cognitive Behavioral Neurology, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.,Inpatient Psychiatry, Department of Psychiatry, Mass General Brigham Salem Hospital, Salem, Massachusetts
| | - Margaret Tuttle
- Functional Neurological Disorder Unit, Division of Cognitive Behavioral Neurology, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.,Primary Care Psychiatry, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Aneeta Saxena
- Functional Neurological Disorder Unit, Division of Cognitive Behavioral Neurology, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.,Epilepsy Division, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts
| | - David L Perez
- Functional Neurological Disorder Unit, Division of Cognitive Behavioral Neurology, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.,Division of Neuropsychiatry, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
50
|
Delgado C, Kurtis M, Martin B, Rada P, Martinez L, Sanz M, Borda B, Vicente C, Garcia M, Franch O, Pareés I. Clinical and demographic characteristics of patients with functional movement disorders: a consecutive cohort study from a specialized clinic. Acta Neurol Belg 2022; 122:97-103. [PMID: 33743163 DOI: 10.1007/s13760-021-01648-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 03/08/2021] [Indexed: 11/26/2022]
Abstract
There is a growing interest in functional movement disorders (FMD). However, epidemiological data from large cohorts of patients with FMD are scarce and come mainly from General Neurology and Movement Disorders Clinics. Recently, specialized FMD clinics have been developed and epidemiological data from such clinics may provide useful information. We aimed to describe the clinical and sociodemographic features of patients diagnosed with FMD at our specialized FMD clinic. A standardized form was used to extract data from electronic records from the first-100 consecutive patients who were evaluated and diagnosed with FMD at our clinic from 2017 to 2019. Mean age was 40.88 ± (14.02) years, 63% females. Most patients were within working-age range, but only 16% were working at the time of consultation. Mean disease duration was 3.74 ± 5.73 years and was longer among men. The most common FMD were gait disturbance (42%), tremor (22%) and dystonia (15%). A precipitating event (mainly physical) was reported by 74%. The onset was mostly acute (83%) and the clinical course fluctuating (62%). Pain (64%) and fatigue (44%) were common comorbidities. Potential joint-hypermobility was present in 21%, mostly women (90%) and related to the presence of dystonia. FMD affects men and women mostly in working-age. Gait disturbance was the most common diagnosis, possibly because it causes a higher level of disability that may lead to consultation in a specialized clinic. Non-motor symptoms (pain and fatigue) were frequent in this cohort. Further data from specialized units may contribute to both understanding and management of FMD.
Collapse
Affiliation(s)
- Celia Delgado
- Functional Movement Disorders Unit, Movement Disorders Program, Department of Neurology, Ruber International Hospital, Madrid, Spain.
| | - Mónica Kurtis
- Functional Movement Disorders Unit, Movement Disorders Program, Department of Neurology, Ruber International Hospital, Madrid, Spain
| | - Beatriz Martin
- Functional Movement Disorders Unit, Movement Disorders Program, Department of Neurology, Ruber International Hospital, Madrid, Spain
| | - Pilar Rada
- Functional Movement Disorders Unit, Movement Disorders Program, Department of Neurology, Ruber International Hospital, Madrid, Spain
| | - Leticia Martinez
- Functional Movement Disorders Unit, Movement Disorders Program, Department of Neurology, Ruber International Hospital, Madrid, Spain
| | - Marta Sanz
- Functional Movement Disorders Unit, Movement Disorders Program, Department of Neurology, Ruber International Hospital, Madrid, Spain
| | - Blanca Borda
- Functional Movement Disorders Unit, Movement Disorders Program, Department of Neurology, Ruber International Hospital, Madrid, Spain
| | - Carmen Vicente
- Functional Movement Disorders Unit, Movement Disorders Program, Department of Neurology, Ruber International Hospital, Madrid, Spain
| | - Montserrat Garcia
- Functional Movement Disorders Unit, Movement Disorders Program, Department of Neurology, Ruber International Hospital, Madrid, Spain
| | - Oriol Franch
- Functional Movement Disorders Unit, Movement Disorders Program, Department of Neurology, Ruber International Hospital, Madrid, Spain
| | - Isabel Pareés
- Functional Movement Disorders Unit, Movement Disorders Program, Department of Neurology, Ruber International Hospital, Madrid, Spain.
| |
Collapse
|