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Bazydlo S, Eccles FJR. Living with functional movement disorders: a tale of three battles. An interpretative phenomenological analysis. Psychol Health 2024; 39:1130-1147. [PMID: 36222457 DOI: 10.1080/08870446.2022.2130312] [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] [Received: 04/09/2022] [Revised: 08/05/2022] [Accepted: 09/26/2022] [Indexed: 11/05/2022]
Abstract
OBJECTIVES Functional movement disorders (FMD) have poor prognosis and high physical and psychological co-morbidity. Their pathogenesis remains unclear, clinicians often find them difficult to treat, and lack of agreement between healthcare providers and patients is common. This study aimed to explore the experiences of living with FMD to improve understanding of its impact and patients' needs. METHODS Ten participants across the UK were recruited online through a charity's social media platforms. Semi structured interviews were conducted via video calls and were audio recorded and verbatim transcripts were analysed using interpretative phenomenological analysis. RESULTS Three superordinate themes were generated from the data, representing the three battles fought by the participants: (1) intrapersonal: the tug of war with the secret agent within- the power struggle with symptoms; (2) interpersonal: navigating stigma and self-preservation; (3) systemic: pursuing hope and treatments against helplessness and passivity. CONCLUSIONS Loss of control, feelings of powerlessness and oppression by symptoms is often mirrored in participants' experiences of seeking healthcare and navigating societal stigma. Active efforts to regain influence, improve quality of life and maintain hope can be jeopardised by others' dismissive attitudes and lack of knowledge. Antonovsky's model of salutogenesis is proposed as a useful framework for facilitating empowerment in FMD service provision.
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Affiliation(s)
- Sylwia Bazydlo
- Division of Health Research, Health Innovation One, Sir John Fisher Drive, Lancaster University, Lancaster, UK
| | - Fiona J R Eccles
- Division of Health Research, Health Innovation One, Sir John Fisher Drive, Lancaster University, Lancaster, UK
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2
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Gafaranga JP, Kayitesi ML. Functional neurological symptom disorder in a patient with hemibody weakness: A case report. SAGE Open Med Case Rep 2024; 12:2050313X241267073. [PMID: 39071194 PMCID: PMC11282550 DOI: 10.1177/2050313x241267073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 06/20/2024] [Indexed: 07/30/2024] Open
Abstract
Functional neurological symptom disorder (FNSD) is a complex condition with multifactorial etiology in which psychological factors may play a significant role in some patients, and they are not universally present or necessary for the diagnosis. FNSD can occur in the absence of psychological distress and each patient's presentation should be evaluated individually, considering a wide range of potential contributing factors. This is the first report related to prevalence data from Rwanda. This report presents a case study of a 15-year-old female patient who presented hemibody weakness without a structural neurological explanation on the background of the direct exposure to parental conflict. she was ultimately diagnosed with an FNSD and responded effectively to five sessions of cognitive behavioral therapy. Additionally, follow-up appointments were conducted every 4 months over the course of 1 year. During this period, the patient successfully resumed her studies and demonstrated normal functioning in all essential areas of daily life. This is the first reported case in Rwanda among similar cases. Addressing these specific stressors played a crucial role in the patient's overall outcome, leading to improved quality of care and prevention of unnecessary medical costs and interventions.
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Affiliation(s)
- Jean Pierre Gafaranga
- Department of Mental Health, University Teaching Hospital of Kigali, Kigali, Rwanda
- Department of Psychiatry and Behavioral Sciences, School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda
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3
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Schneider A, Weber S, Wyss A, Loukas S, Aybek S. BOLD signal variability as potential new biomarker of functional neurological disorders. Neuroimage Clin 2024; 43:103625. [PMID: 38833899 PMCID: PMC11179625 DOI: 10.1016/j.nicl.2024.103625] [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: 04/05/2024] [Revised: 05/16/2024] [Accepted: 05/29/2024] [Indexed: 06/06/2024]
Abstract
BACKGROUND Functional neurological disorder (FND) is a common neuropsychiatric condition with established diagnostic criteria and effective treatments but for which the underlying neuropathophysiological mechanisms remain incompletely understood. Recent neuroimaging studies have revealed FND as a multi-network brain disorder, unveiling alterations across limbic, self-agency, attentional/salience, and sensorimotor networks. However, the relationship between identified brain alterations and disease progression or improvement is less explored. METHODS This study included resting-state functional magnetic resonance imaging (fMRI) data from 79 patients with FND and 74 age and sex-matched healthy controls (HC). First, voxel-wise BOLD signal variability was computed for each participant and the group-wise difference was calculated. Second, we investigated the potential of BOLD signal variability to serve as a prognostic biomarker for clinical outcome in 47 patients who attended a follow-up measurement after eight months. RESULTS The results demonstrated higher BOLD signal variability in key networks, including the somatomotor, salience, limbic, and dorsal attention networks, in patients compared to controls. Longitudinal analysis revealed an increase in BOLD signal variability in the supplementary motor area (SMA) in FND patients who had an improved clinical outcome, suggesting SMA variability as a potential state biomarker. Additionally, higher BOLD signal variability in the left insula at baseline predicted a worse clinical outcome. CONCLUSION This study contributes to the understanding of FND pathophysiology, emphasizing the dynamic nature of neural activity and highlighting the potential of BOLD signal variability as a valuable research tool. The insula and SMA emerge as promising regions for further investigation as prognostic and state markers.
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Affiliation(s)
- Ayla Schneider
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland; Translational Imaging Center (TIC), Swiss Institute for Translational and Entrepreneurial Medicine, 3010 Bern, Switzerland
| | - Samantha Weber
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland; Translational Imaging Center (TIC), Swiss Institute for Translational and Entrepreneurial Medicine, 3010 Bern, Switzerland; University of Zurich, Psychiatric University Hospital Zurich, Department of Psychiatry, Psychotherapy and Psychosomatics, 8032 Zurich, Switzerland
| | - Anna Wyss
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland; Graduate School for Health Sciences (GHS), University of Bern, 3006 Bern, Switzerland
| | - Serafeim Loukas
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland; Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Selma Aybek
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland; Faculty of Science and Medicine, University of Fribourg, 1700 Fribourg, Switzerland.
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Wolters AF, Snijders AH, Bloem BR. Video case: A new phenotype within the spectrum of functional orofacial movement disorders. J Neurol 2023; 270:6159-6162. [PMID: 37615750 DOI: 10.1007/s00415-023-11949-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/16/2023] [Accepted: 08/17/2023] [Indexed: 08/25/2023]
Affiliation(s)
- Amée F Wolters
- Department of Neurology, Maastricht University Medical Center, Maastricht, The Netherlands.
| | - Anke H Snijders
- Department of Neurology, Centre of Expertise for Parkinson and Movement Disorders, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Bastiaan R Bloem
- Department of Neurology, Centre of Expertise for Parkinson and Movement Disorders, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
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Sireci F, Moretti V, Cavallieri F, Ferrari S, Minardi V, Ferrari F, Balestra GL, Ghirotto L, Valzania F. "Somewhere Between an Actual Disease and a Disease": A Grounded Theory Study on Diagnosing Functional Neurological Disorders From a Multi-Informant Perspective. QUALITATIVE HEALTH RESEARCH 2023:10497323231216346. [PMID: 38031806 DOI: 10.1177/10497323231216346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Functional Neurological Disorders are characterized by sensory-motor or cognitive symptoms. Recent research has revealed their complex nature involving biological, psychological, and social factors. Care requires a multidisciplinary approach, which, to date, has yet to be considered. A Constructivist Grounded Theory study was conducted to understand the reasons behind this, exploring Functional Neurological Disorders diagnosis, communication, and understanding from multiple perspectives (patients and healthcare professionals). The core category was "negotiating Functional Neurological Disorders meanings and care amid a dissatisfying dichotomy," with sub-categories: i) seeking to "word" the disease, ii) exposing reductionism, and iii) a pluralist vision emerging. Diagnosing and communicating Functional Neurological Disorders is a process of negotiating meanings and care that hinges on participants' diverse ontological perspectives regarding the condition. Results highlight the difficulty in finding common ground and achieving mutual understanding among the various viewpoints, creating a challenge in establishing a unified approach to Functional Neurological Disorders care. In this context, only a few healthcare professionals emphasized the potential benefits of increased integration. A shift is required from a reductionist to an integrated biopsychosocial perspective to develop a more cohesive approach. Defining a medical paradigm through dialogue with teams and patients is essential in addressing Functional Neurological Disorders effectively. Furthermore, the required interdisciplinary approach holds the potential to mitigate the dissatisfaction arising from fragmented and compartmentalized care (the "dissatisfying dichotomy") experienced by our participants. It signifies a comprehensive strategy that could address the concerns of all involved parties and enhance the overall quality of care provided.
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Affiliation(s)
- Francesca Sireci
- Neurology Unit, Neuromotor & Rehabilitation Department, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Valentina Moretti
- Department of Mental Health and Drug Abuse, Azienda Unità Sanitaria Locale di Modena, Modena, Italy
| | - Francesco Cavallieri
- Neurology Unit, Neuromotor & Rehabilitation Department, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Silvia Ferrari
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
- Department of Mental Health and Drug Abuse, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Valentina Minardi
- Neurology Unit, Neuromotor & Rehabilitation Department, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Francesca Ferrari
- Neurology Unit, Neuromotor & Rehabilitation Department, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Giulietta Luul Balestra
- Qualitative Research Unit, Scientific Directorate, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Luca Ghirotto
- Qualitative Research Unit, Scientific Directorate, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Franco Valzania
- Neurology Unit, Neuromotor & Rehabilitation Department, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
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Lim TT, Por CY, Beh YY, Schee JP, Tan AH. Treatment of startle and related disorders. Clin Park Relat Disord 2023; 9:100218. [PMID: 37808566 PMCID: PMC10556813 DOI: 10.1016/j.prdoa.2023.100218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/04/2023] [Accepted: 09/15/2023] [Indexed: 10/10/2023] Open
Affiliation(s)
| | - Chia Yin Por
- Department of Medicine, Penang General Hospital, Penang, Malaysia
| | - Yuan Ye Beh
- Department of Medicine, Penang General Hospital, Penang, Malaysia
| | - Jie Ping Schee
- Faculty of Medicine (Divisions of Neurology), University of Malaya, Malaysia
| | - Ai Huey Tan
- Faculty of Medicine (Divisions of Neurology), University of Malaya, Malaysia
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7
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Fiore A, Papuga MO. Multimodal Care of a Patient With Functional Movement Disorders Following a Motor Vehicle Accident: A Case Report. J Chiropr Med 2023; 22:239-245. [PMID: 37644994 PMCID: PMC10461147 DOI: 10.1016/j.jcm.2023.03.010] [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: 09/21/2022] [Revised: 03/29/2023] [Accepted: 03/29/2023] [Indexed: 08/31/2023] Open
Abstract
Objective The purpose of this case report was to describe the multimodal care of a patient with the sudden onset of truncal tremors. Clinical Features A 30-year-old female patient presented for chiropractic care with truncal tremors following a motor vehicle accident. Initial outcome measures included the Neck Disability Index (50%) and Oswestry Disability Index (62). The patient's truncal tremors became worse during spinal cord compression testing that included passive cervical flexion and slouched posture. The Romberg test was positive for swaying. Assessments of active range of motions of the cervical, thoracic, and lumbar spine were moderately reduced in all ranges. Case history, physical examinations, diagnostic imaging, and neurology consultations led to a diagnosis of functional truncal tremors. The patient was being concurrently managed by other health care providers. Magnetic resonance imaging studies were ordered by a neurologist and primary medical physician, which showed no structural abnormalities in brain neuroanatomy or spine. Intervention and Outcome The multimodal chiropractic care included whole-body vibration therapy (WBVT), spinal manipulative therapy (SMT), and acupuncture therapy. The treatment plan included 8 weekly appointments in which the patient received WBVT and SMT. During treatment weeks 2 to 6, the patient received acupuncture therapy, which occurred immediately following their treatment appointment for WBVT and SMT. The patient practiced stress reduction techniques, as advised by the neurologist, eliminated caffeine, and performed daily yoga exercises for 30 minutes. The Romberg test was negative after the third treatment. The patient was discharged after chiropractic visit 12, 95 days post-accident, as she reached maximal medical improvement. Truncal tremors were still present, but the patient described them as "barely noticeable." Conclusion The patient reported improvement under a course of chiropractic care using a multimodal approach, including behavioral, pharmacological, and manual therapies. This case study suggests that WBVT, SMT, and acupuncture therapy may assist some patients with functional movement disorders.
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Affiliation(s)
- Alexandra Fiore
- Northeast College of Health Sciences, Seneca Falls, New York
| | - M. Owen Papuga
- Northeast College of Health Sciences, Seneca Falls, New York
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Weber S, Bühler J, Vanini G, Loukas S, Bruckmaier R, Aybek S. Identification of biopsychological trait markers in functional neurological disorders. Brain 2023; 146:2627-2641. [PMID: 36417451 PMCID: PMC10232283 DOI: 10.1093/brain/awac442] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 11/07/2022] [Accepted: 11/12/2022] [Indexed: 11/26/2023] Open
Abstract
Stress is a well-known risk factor to develop a functional neurological disorder, a frequent neuropsychiatric medical condition in which patients experience a variety of disabling neurological symptoms. Only little is known about biological stress regulation, and how it interacts with predisposing biological and psychosocial risk factors. Dysregulation of the hypothalamic-pituitary-adrenal axis in patients with functional neurological disorders has been postulated, but its relationship to preceding psychological trauma and brain anatomical changes remains to be elucidated. We set out to study the hypothalamic-pituitary-adrenal axis analysing the cortisol awakening response and diurnal baseline cortisol in 86 patients with mixed functional neurological symptoms compared to 76 healthy controls. We then examined the association between cortisol regulation and the severity and duration of traumatic life events. Finally, we analysed volumetric brain alterations in brain regions particularly sensitive to psychosocial stress, acting on the assumption of the neurotoxic effect of prolonged cortisol exposure. Overall, patients had a significantly flatter cortisol awakening response (P < 0.001) and reported longer (P = 0.01) and more severe (P < 0.001) emotional neglect as compared to healthy controls. Moreover, volumes of the bilateral amygdala and hippocampus were found to be reduced in patients. Using a partial least squares correlation, we found that in patients, emotional neglect plays a role in the multivariate pattern between trauma history and hypothalamic-pituitary-adrenal axis dysfunction, while cortisol did not relate to reduced brain volumes. This suggests that psychological stress acts as a precipitating psychosocial risk factor, whereas a reduced brain volume rather represents a biological predisposing trait marker for the disorder. Contrarily, an inverse relationship between brain volume and cortisol was found in healthy controls, representing a potential neurotoxic effect of cortisol. These findings support the theory of reduced subcortical volumes representing a predisposing trait factor in functional neurological disorders, rather than a state effect of the illness. In summary, this study supports a stress-diathesis model for functional neurological disorders and showed an association between different attributes of trauma history and abnormalities in hypothalamus-pituitary-adrenal axis function. Moreover, we suggest that reduced hippocampal and amygdalar volumes represent a biological 'trait marker' for functional neurological disorder patients, which might contribute to a reduced resilience to stress.
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Affiliation(s)
- Samantha Weber
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland
- Translational Imaging Center (TIC), Swiss Institute for Translational and Entrepreneurial Medicine, 3010 Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences (GCB), University of Bern, 3010 Bern, Switzerland
| | - Janine Bühler
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland
- Translational Imaging Center (TIC), Swiss Institute for Translational and Entrepreneurial Medicine, 3010 Bern, Switzerland
- Graduate School for Health Sciences (GHS), University of Bern, 3012 Bern, Switzerland
| | - Giorgio Vanini
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland
| | - Serafeim Loukas
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland
- Division of Development and Growth, Department of Pediatrics, University of Geneva, 1211 Geneva, Switzerland
- Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Rupert Bruckmaier
- Veterinary Physiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland
| | - Selma Aybek
- Department of Neurology, Psychosomatic Medicine Unit, Inselspital Bern University Hospital, University of Bern, 3012 Bern, Switzerland
- Translational Imaging Center (TIC), Swiss Institute for Translational and Entrepreneurial Medicine, 3010 Bern, Switzerland
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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.
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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
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Waugh RE, Parker JA, Hallett M, Horovitz SG. Classification of Functional Movement Disorders with Resting-State Functional Magnetic Resonance Imaging. Brain Connect 2023; 13:4-14. [PMID: 35570651 PMCID: PMC9942186 DOI: 10.1089/brain.2022.0001] [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] [Indexed: 11/13/2022] Open
Abstract
Introduction: Functional movement disorder (FMD) is a type of functional neurological disorder characterized by abnormal movements that patients do not perceive as self-generated. Prior imaging studies show a complex pattern of altered activity, linking regions of the brain involved in emotional responses, motor control, and agency. This study aimed to better characterize these relationships by building a classifier using a support vector machine to accurately distinguish between 61 FMD patients and 59 healthy controls using features derived from resting-state functional magnetic resonance imaging. Materials and Methods: First, we selected 66 seed regions based on prior related studies, then we calculated the full correlation matrix between them before performing recursive feature elimination to winnow the feature set to the most predictive features and building the classifier. Results: We identified 29 features of interest that were highly predictive of the FMD condition, classifying patients and controls with 80% accuracy. Several key features included regions in the right sensorimotor cortex, left dorsolateral prefrontal cortex, left cerebellum, and left posterior insula. Conclusions: The features selected by the model highlight the importance of the interconnected relationship between areas associated with emotion, reward, and sensorimotor integration, potentially mediating communication between regions associated with motor function, attention, and executive function. Exploratory machine learning was able to identify this distinctive abnormal pattern, suggesting that alterations in functional linkages between these regions may be a consistent feature of the condition in many FMD patients. Clinical-Trials.gov ID: NCT00500994 Impact statement Our research presents novel results that further elucidate the pathophysiology of functional movement disorder (FMD) with a machine learning model that classifies FMD and healthy controls correctly 80% of the time. Herein, we demonstrate how known differences in resting-state functional magnetic resonance imaging connectivity in FMD patients can be leveraged to better understand the complex pattern of neural changes in these patients. Knowing that there are measurable predictable differences in brain activity in patients with FMD may help both clinicians and patients conceptualize and better understand the illness at the point of diagnosis and during treatment. Our methods demonstrate how an effective combination of machine learning and qualitative approaches to analyzing functional brain connectivity can enhance our understanding of abnormal patterns of brain activity in FMD patients.
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Affiliation(s)
- Rebecca E. Waugh
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
| | - Jacob A. Parker
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
| | - Mark Hallett
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
| | - Silvina G. Horovitz
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
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11
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Varley D, Sweetman J, Brabyn S, Lagos D, van der Feltz-Cornelis C. The clinical management of functional neurological disorder: A scoping review of the literature. J Psychosom Res 2023; 165:111121. [PMID: 36549074 DOI: 10.1016/j.jpsychores.2022.111121] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 12/13/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To date, there have been no reviews bringing together evidence on the clinical management of functional neurological disorder (FND) and patients', caregivers', and healthcare workers' experiences. This review provides an overview of the literature focused on the clinical management of FND. METHODS Four databases were searched, and a consultation exercise was conducted to retrieve relevant records dated from September 2010 to September 2020. Articles documenting diagnostic methods, treatments or interventions, or the experiences and perspectives of patients and healthcare workers in the clinical management of FND were included. RESULTS In total, 2756 records were retrieved, with 162 included in this review. The diagnostic methods reported predominantly included positive clinical signs, v-EEG and EEG. Psychological treatments and medication were the most reported treatments. Mixed findings of the effectiveness of CBT were found. Haloperidol, physiotherapy and scripted diagnosis were found to be effective in reducing FND symptoms. Several facilitators and barriers for patients accessing treatment for FND were reported. CONCLUSION The literature describing the clinical management for FND has increased considerably in recent times. A wide variety of diagnostic tools and treatments and interventions were found, with more focus being placed on tests that confirm a diagnosis than 'rule-out' tests. The main treatment type found in this review was medication. This review revealed that there is a lack of high-quality evidence and reflects the need for official clinical guidelines for FND, providing healthcare workers and patients the support needed to navigate the process to diagnose and manage FND.
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Affiliation(s)
- Danielle Varley
- Department of Health Sciences, University of York, York YO10 5DD, UK.
| | - Jennifer Sweetman
- Department of Health Sciences, University of York, York YO10 5DD, UK
| | - Sally Brabyn
- Department of Health Sciences, University of York, York YO10 5DD, UK
| | - Dimitris Lagos
- Hull York Medical School, University of York, York YO10 5DD, UK
| | - Christina van der Feltz-Cornelis
- Department of Health Sciences, University of York, York YO10 5DD, UK; Hull York Medical School, University of York, York YO10 5DD, UK; York Biomedical Research Institute, University of York, York YO10 5DD, UK; Institute of Health Informatics, University College London, London NW1 2DA, UK
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12
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Grippe T, Desai N, Arora T, Chen R. Use of non-invasive neurostimulation for rehabilitation in functional movement disorders. FRONTIERS IN REHABILITATION SCIENCES 2022; 3:1031272. [PMID: 36466938 PMCID: PMC9709439 DOI: 10.3389/fresc.2022.1031272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/25/2022] [Indexed: 01/19/2024]
Abstract
Functional movement disorders (FMD) are a subtype of functional neurological disorders which involve abnormal movements and include multiple phenomenologies. There is a growing interest in the mechanism, diagnosis, and treatment of these disorders. Most of the current therapeutic approaches rely on psychotherapy and physiotherapy conducted by a multidisciplinary team. Although this approach has shown good results in some cases, FMD cause a great burden on the health system and other treatment strategies are urgently needed. In this review, we summarize past studies that have applied non-invasive neurostimulation techniques, such as transcranial magnetic stimulation (TMS), transcranial direct current stimulation (tDCS) and peripheral nerve stimulation as a treatment for FMD. There is an increasing number of studies related to TMS including randomized controlled trials; however, the protocols amongst studies are not standardized. There is only preliminary evidence for the efficacy of non-invasive neuromodulation in reducing FMD symptoms, and further studies are needed. There is insufficient evidence to allow implementation of these techniques in clinical practice.
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Affiliation(s)
- Talyta Grippe
- Edmond J. Safra Program in Parkinson’s Disease, Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, UHN, Toronto, ON, Canada
- Division of Neurology, University of Toronto, Toronto, ON, Canada
- Neuroscience Graduate Program, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Naaz Desai
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Tarun Arora
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Robert Chen
- Edmond J. Safra Program in Parkinson’s Disease, Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, UHN, Toronto, ON, Canada
- Division of Neurology, University of Toronto, Toronto, ON, Canada
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
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13
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Allena N, Doppalapudi S, Khanal S, Tank S, Nasr R. Acute Dystonia With Rhabdomyolysis Induced by Paliperidone Palmitate: A Rare Adverse Effect. Cureus 2022; 14:e28771. [PMID: 36225523 PMCID: PMC9531761 DOI: 10.7759/cureus.28771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2022] [Indexed: 11/13/2022] Open
Abstract
Antipsychotic medications have been well-established to potentially cause extrapyramidal side effects (EPS) including hyperkinesia, tremor, dyskinesia, dystonia, and parkinsonism. Rhabdomyolysis secondary to extrapyramidal symptoms in patients under antipsychotics is a relatively rare presentation to be observed in patients. In this report, we present a 64-year-old female with rhabdomyolysis following a once-monthly injection of long-acting injectable (LAI) paliperidone palmitate (Invega Sustenna). The patient developed extrapyramidal symptoms one day after the paliperidone injection. She presented with acute dystonia in the form of antecollis, without any evidence of generalized myalgia or kidney involvement. Laboratory investigations demonstrated a creatine kinase (CK) level of 3239 unit/L on admission. The patient’s symptoms were resolved after the administration of benztropine and cyclobenzaprine and CK levels improved after IV hydration. A high index of suspicion in the investigation of rhabdomyolysis for patients presenting with extrapyramidal symptoms being treated with long-acting injectable antipsychotics leads to prompt diagnosis, early treatment, and reduction in renal and cardiac toxicities in the aforementioned population.
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14
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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]
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15
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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.
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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
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16
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Management of Functional Neurological Disorders (FND): Experience from a Swiss FND Clinic. CLINICAL AND TRANSLATIONAL NEUROSCIENCE 2022. [DOI: 10.3390/ctn6010002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Functional neurological disorder (FND) represent a common disorder with significant socio-economic impact. In this context and alongside recent new neuroscientific insights, FND attracts a growing interest both in clinical practice and academic activities. New international recommendation and expert opinions suggest that therapy of FND should be a tailored multidisciplinary management involving the neurologist, the physiotherapist, and in most cases the psychotherapist/psychiatrist. A first decisive step is the establishment of a definitive diagnosis, based on the presence of clinical positive signs during neurological assessment together with a clear communication and explanation of the diagnosis by the neurologist. A second important step is based on individual therapeutic sessions, involving different disciplines (neurology and psychotherapy or neurology and physiotherapy). Comorbidities, such as pain or fatigue and psychiatric comorbidities (anxiety, depression, dissociation etc.) should be carefully evaluated, as they need an individualized treatment path. New FND clinics have been created worldwide over the last decades to offer such multidisciplinary settings and this article will present the experience of a first Swiss FND clinic created in 2016. The aim is to highlight in the form of a narrative review the current literature supporting the usefulness and importance of FND clinics, by reviewing the latest evidence on multidisciplinary interventions in FND.
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17
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Xie XY, Lin GZ, Huang Q, Li CB, Hallett M, Voon V, Ren RJ, Chen SD, Wang G. Opinions and clinical practice of functional movement disorders: a nationwide survey of clinicians in China. BMC Neurol 2021; 21:435. [PMID: 34753449 PMCID: PMC8576952 DOI: 10.1186/s12883-021-02474-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 10/28/2021] [Indexed: 11/24/2022] Open
Abstract
Background
There is rare reports about opinions and clinical practice of functional movement disorders (FMD) in China. The present survey aimed to investigate the views of FMD in Chinese clinicians. Methods The Chinese version survey of FMD were conducted in nationwide practitioners by means of an online questionnaire. Results Four hundred and thirty-four Chinese clinicians completed a 21-item questionnaire probing diagnostic and management issues in FMD. More than 80% of respondents considered that atypical movement disorder, multiple somatizations, and emotional disturbance were essential or absolutely necessary for clinically definite diagnosis of FMD. About three quarters of respondents requested standard neurological investigations to rule out organic causes. Over half believed that prior diagnosis of an organic disorder (59.9%), lack of associated non-physiologic deficits (51.8%), and evidence of physical injury (50.0%) were ‘very influential’ or ‘extremely influential’ for a non-FMD diagnosis. The majority (77.4%) of the respondents may refer patients to a neuropsychiatrist or psychiatrist experienced in FMD, followed by psychologist or psychotherapist experienced in FMD (53.2%). However, lack of guidelines, physician knowledge, and training often limited clinicians’ ability in managing patients with FMD. Early diagnosis of FMD, identification and management of concurrent psychiatric disorder, and acceptance of the diagnosis by the patient were considered most important for predicting a favorable prognosis. Conclusions Opinions and clinical practice of Chinese practitioners not only varied among Chinese neurologists, but also differed from international peers. Combined efforts are needed to promote related research and establish practice guidelines in China in the future. Supplementary Information The online version contains supplementary material available at 10.1186/s12883-021-02474-4.
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Affiliation(s)
- Xin-Yi Xie
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No.197, Ruijin Second Road, Huangpu District, Shanghai, China
| | - Guo-Zhen Lin
- Department of Psychiatry, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qiang Huang
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No.197, Ruijin Second Road, Huangpu District, Shanghai, China
| | - Chun-Bo Li
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mark Hallett
- Human Motor Control Section, Medical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Valerie Voon
- Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Ru-Jing Ren
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No.197, Ruijin Second Road, Huangpu District, Shanghai, China
| | - Sheng-di Chen
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No.197, Ruijin Second Road, Huangpu District, Shanghai, China.
| | - Gang Wang
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No.197, Ruijin Second Road, Huangpu District, Shanghai, China.
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18
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Baker J, Barnett C, Cavalli L, Dietrich M, Dixon L, Duffy JR, Elias A, Fraser DE, Freeburn JL, Gregory C, McKenzie K, Miller N, Patterson J, Roth C, Roy N, Short J, Utianski R, van Mersbergen M, Vertigan A, Carson A, Stone J, McWhirter L. Management of functional communication, swallowing, cough and related disorders: consensus recommendations for speech and language therapy. J Neurol Neurosurg Psychiatry 2021; 92:1112-1125. [PMID: 34210802 DOI: 10.1136/jnnp-2021-326767] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/25/2021] [Indexed: 12/14/2022]
Abstract
Communication problems (eg, dysphonia, dysfluency and language and articulation disorders), swallowing disorders (dysphagia and globus), cough and upper airway symptoms, resulting from functional neurological disorder (FND), are commonly encountered by speech and language professionals. However, there are few descriptions in the literature of the most effective practical management approaches. This consensus document aims to provide recommendations for assessment and intervention that are relevant to both adults and young people. An international panel of speech and language professionals with expertise in FND were approached to take part. Participants responded individually by email to a set of key questions regarding best practice for assessment and interventions. Next, a video conference was held in which participants discussed and debated the answers to these key questions, aiming to achieve consensus on each issue. Drafts of the collated consensus recommendations were circulated until consensus was achieved. FND should be diagnosed on the basis of positive clinical features. Speech and language therapy for FND should address illness beliefs, self-directed attention and abnormal movement patterns through a process of education, symptomatic treatment and cognitive behavioural therapy within a supportive therapeutic environment. We provide specific examples of these strategies for different symptoms. Speech and language professionals have a key role in the management of people with communication and related symptoms of FND. It is intended that these expert recommendations serve as both a practical toolkit and a starting point for further research into evidence-based treatments.
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Affiliation(s)
- Janet Baker
- Speech Pathology, Flinders University, Adelaide, South Australia, Australia
- University of Technology Sydney, Sydney, New South Wales, Australia
| | - Caroline Barnett
- South Warwickshire NHS Foundation Trust, Warwick, Warwickshire, UK
| | - Lesley Cavalli
- Department of Speech & Language Therapy, Great Ormond Street Hospital for Children NHS Foundation Trust, London, London, UK
- Division of Psychology and Language Sciences, University College London, London, London, UK
| | - Maria Dietrich
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Nordrhein-Westfalen, Germany
| | - Lorna Dixon
- National Hospital for Neurology and Neurosurgery, London, London, UK
| | - Joseph R Duffy
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
| | - Annie Elias
- Speech and Language Therapy, Kent Community Health NHS Foundation Trust, Ashford, Kent, UK
| | - Diane E Fraser
- Department of Clinical Neurosciences, Royal Infirmary of Edinburgh, Edinburgh, Edinburgh, UK
| | | | | | | | - Nick Miller
- Speech Language Sciences, Newcastle University, Newcastle upon Tyne, Tyne and Wear, UK
| | - Jo Patterson
- University of Liverpool, Liverpool, Merseyside, UK
| | - Carole Roth
- Speech Pathology Division, Naval Medical Center San Diego, San Diego, California, USA
| | - Nelson Roy
- Department of Communication Sciences and Disorders, The University of Utah, Salt Lake City, Utah, USA
- Division of Otolaryngology - Head and Neck Surgery (Adjunct), The University of Utah, Salt Lake City, Utah, USA
| | | | - Rene Utianski
- Neurology, Mayo Clinic, Rochester, Minnesota, USA
- Speech Pathology and Neurology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota, USA
| | - Miriam van Mersbergen
- School of Communication Sciences and Disorders, Institute for Intelligent Systems, The University of Memphis, Memphis, Tennessee, USA
| | - Anne Vertigan
- Speech Pathology, John Hunter Hospital, Newcastle, New South Wales, Australia
- Centre for Healthy Lungs, Hunter Medical Research Institute; School of Medicine and Public Health, The University of Newcastle, Newcastle, New South Wales, Australia
| | - Alan Carson
- Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, Edinburgh, UK
| | - Jon Stone
- Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, Edinburgh, UK
| | - Laura McWhirter
- Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, Edinburgh, UK
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19
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Pringsheim T, Ganos C, McGuire JF, Hedderly T, Woods D, Gilbert DL, Piacentini J, Dale RC, Martino D. Rapid Onset Functional Tic-Like Behaviors in Young Females During the COVID-19 Pandemic. Mov Disord 2021; 36:2707-2713. [PMID: 34387394 PMCID: PMC8441698 DOI: 10.1002/mds.28778] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/05/2021] [Accepted: 08/09/2021] [Indexed: 11/29/2022] Open
Affiliation(s)
- Tamara Pringsheim
- Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Christos Ganos
- Department of Neurology, Charite Universitatsmedizin Berlin, Berlin, Germany
| | - Joseph F McGuire
- Department of Psychiatry and Behavioural Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Tammy Hedderly
- Guy's and St Thomas' NHS Foundation Trust, Evelina London Children's Hospital UK, London, United Kingdom
| | - Douglas Woods
- Department of Psychology, Marquette University, Milwaukee, Wisconsin, USA
| | - Donald L Gilbert
- Division of Neurology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati, Cincinnati, Ohio, USA
| | - John Piacentini
- Department of Psychiatry and Biobehavioural Sciences, University of California Los Angeles, Los Angeles, California, USA
| | - Russell C Dale
- Kids Neuroscience Centre, University of Sydney, Sydney, New South Wales, Australia
| | - Davide Martino
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
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20
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Baizabal-Carvallo JF, Jankovic J. Beyond tics: movement disorders in patients with Tourette syndrome. J Neural Transm (Vienna) 2021; 128:1177-1183. [PMID: 34302221 DOI: 10.1007/s00702-021-02386-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 07/16/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Tics are the hallmark of Tourette syndrome (TS). However, TS patients may have a particular vulnerability to develop other movement disorders (MDs), such as dystonia, chorea, stereotypy, and other hyperkinetic disorders that may be wrongly attributed to tics. MATERIALS AND METHODS We studied a cohort of 201 patients with motor and phonic tics associated with TS to determine if they have additional, co-existent, MDs. RESULTS There were 67 (33.3%) patients with comorbid non-tic MDs. Phenomenology-wise, piano-playing movements resembling chorea or myoclonus, were the most common non-tic movement, observed in 11% of cases, followed by stereotypies (8.0%), tremor, dystonia and parkinsonism, 5.0% each. Drug-induced was the most common etiology (6.0%), followed by functional movement disorders (5.0%) and tardive phenomena (5.0%). No clear etiology was identified in most patients. Piano-playing movements, were associated with a younger age at onset (P = 0.004) and younger age at presentation (P < 0.001). Patients with drug-induced movements and tardive phenomena had a lower frequency of craniofacial tics. FMDs, and idiopathic MDS showed no specific associations with TS. Tic severity was not a predictor of any co-existent MD. CONCLUSION About a third of patients with TS present with comorbid MDs which should be differentiated and distinguished from tics as their etiopathogenesis and treatment may be different.
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Affiliation(s)
- José Fidel Baizabal-Carvallo
- Department of Sciences and Engineering, University of Guanajuato, Lomas del Bosque #103, Lomas del Campestre, C.P. 37150, León, GTO, Mexico. .,Department of Neurology, Parkinson's Disease Center and Movement Disorders Clinic, Baylor College of Medicine, Houston, TX, USA.
| | - Joseph Jankovic
- Department of Neurology, Parkinson's Disease Center and Movement Disorders Clinic, Baylor College of Medicine, Houston, TX, USA
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21
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Gorodetsky C, Azevedo P, Candeias da Silva C, Fasano A. Factors Influencing the Surgical Decision in Dystonia Patients Referred for Deep Brain Stimulation. Toxins (Basel) 2021; 13:toxins13080511. [PMID: 34437382 PMCID: PMC8402533 DOI: 10.3390/toxins13080511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/19/2021] [Accepted: 07/20/2021] [Indexed: 11/16/2022] Open
Abstract
There is no available data on the journey of dystonia patients once referred to a tertiary center to undergo deep brain stimulation (DBS). We hypothesized that some patients might be incorrectly diagnosed while others might decline the procedure or experience significant benefit with switching to a different botulinum neurotoxin (BoNT). This is a single-center, retrospective study of dystonia patients who were referred to the DBS program between January 2014 and December 2018. We collected data on the surgical decision as well as factors influencing this decision. Sixty-seven patients were included (30 males, mean age: 48.3 ± 20.1 years, disease duration: 16.9 ± 15.3 years). Thirty-three (49%) patients underwent DBS. Four (6%) patients were awaiting the procedure while the remaining 30 patients (45%) did not undergo DBS. Reasons for DBS decline were patient refusal (17, 53%), functional dystonia (6, 20%), and successful use of AbobotulinumtoxinA (3, 10%) in patients who had failed other BoNTs. Our study highlights the importance of structured patient education to increase acceptance of DBS, as well as careful patient evaluation, particularly with respect to functional dystonia. Finally, changing BoNT formulation might be beneficial in some patients.
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Affiliation(s)
- Carolina Gorodetsky
- Division of Neurology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada;
- Edmond J. Safra Program in Parkinson’s Disease, Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, UHN, Toronto, ON M5T 2S8, Canada; (P.A.); (C.C.d.S.)
- Division of Neurology, University of Toronto, Toronto, ON M5S 3H2, Canada
| | - Paula Azevedo
- Edmond J. Safra Program in Parkinson’s Disease, Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, UHN, Toronto, ON M5T 2S8, Canada; (P.A.); (C.C.d.S.)
- Division of Neurology, University of Toronto, Toronto, ON M5S 3H2, Canada
| | - Carolina Candeias da Silva
- Edmond J. Safra Program in Parkinson’s Disease, Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, UHN, Toronto, ON M5T 2S8, Canada; (P.A.); (C.C.d.S.)
- Division of Neurology, University of Toronto, Toronto, ON M5S 3H2, Canada
| | - Alfonso Fasano
- Division of Neurology, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada;
- Edmond J. Safra Program in Parkinson’s Disease, Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, UHN, Toronto, ON M5T 2S8, Canada; (P.A.); (C.C.d.S.)
- Division of Neurology, University of Toronto, Toronto, ON M5S 3H2, Canada
- Krembil Brain Institute, Toronto, ON M5T 1M8, Canada
- Center for Advancing Neurotechnological Innovation to Application (CRANIA), Toronto, ON M5T 1M8, Canada
- Correspondence:
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22
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Spagnolo PA, Garvey M, Hallett M. A dimensional approach to functional movement disorders: Heresy or opportunity. Neurosci Biobehav Rev 2021; 127:25-36. [PMID: 33848511 DOI: 10.1016/j.neubiorev.2021.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 03/10/2021] [Accepted: 04/07/2021] [Indexed: 11/28/2022]
Abstract
Functional movement disorders (FMD) are a common and disabling neuropsychiatric condition, part of the spectrum of functional neurological/conversion disorder. FMD represent one of the most enigmatic disorders in the history of medicine. However, in the twenty years after the first report of distinctive abnormal brain activity associated with functional motor symptoms, there have been tremendous advances in the pathophysiologic understanding of these disorders. FMD can be characterized as a disorder of aberrant neurocircuitry interacting with environmental and genetic factors. These developments suggest that research on FMD could be better served by an integrative, neuroscience-based approach focused on functional domains and their neurobiological substrates. This approach has been developed in 'Research Domain Criteria' (RDoC) project, which promotes a dimensional approach to psychiatric disorders. Here, we use the RDoC conceptualization to review recent neuroscience research on FMD, focusing on the domains most relevant to these disorders. We discuss how the adoption of a similar integrative framework may facilitate the identification of the mechanisms underlying FMD and could also have potential clinical applicability.
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Affiliation(s)
- Primavera A Spagnolo
- Mary Horrigan Connors Center for Women's Health and Gender Biology, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Human Motor Control Section, Medical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
| | - Marjorie Garvey
- Novel Strategies for Treatment of Developmental Psychopathology Program, Biomarker and Intervention Development for Childhood-Onset Mental Disorders Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Mark Hallett
- Human Motor Control Section, Medical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
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23
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Kurtis MM, Pareés I. Functional movement disorder comorbidity in Parkinson's disease: Unraveling the web. Parkinsonism Relat Disord 2020; 82:138-145. [PMID: 33092981 DOI: 10.1016/j.parkreldis.2020.10.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 10/07/2020] [Accepted: 10/11/2020] [Indexed: 10/23/2022]
Abstract
Functional movement disorders are commonly seen in neurology services and may coexist with other neurological diseases. This combination is known as "functional overlay" and an increasing interest on this topic has emerged in the past decade as the field of functional neurological disorders has moved forward. Some neurological diseases may be more prone to develop "functional overlay" than others, and within the field of movement disorders, most studies have focused on patients with Parkinson's disease. This review comprehensively summarizes the current body of knowledge on this topic and provides an expert opinion to equip clinicians with a pragmatic approach to recognize functional movement disorders in patients with Parkinson's disease, to communicate the diagnosis and to become familiar with potential therapies in this complex clinical scenario. Potential underlying mechanisms and risk factors that may play a role in increasing the vulnerability of Parkinson's disease patients to develop functional movement disorder comorbidity are also discussed within the framework of modern neurobiological theories of brain functioning.
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Affiliation(s)
- Monica M Kurtis
- Functional Movement Disorders Unit, Movement Disorders Program, Neurology Department, Hospital Ruber Internacional, Madrid, Spain.
| | - Isabel Pareés
- Functional Movement Disorders Unit, Movement Disorders Program, Neurology Department, Hospital Ruber Internacional, Madrid, Spain; Neurology Department, Hospital Ramon y Cajal, Madrid, Spain.
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24
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Dosanjh M, Alty J, Martin C, Latchford G, Graham CD. What is it like to live with a functional movement disorder? An interpretative phenomenological analysis of illness experiences from symptom onset to post-diagnosis. Br J Health Psychol 2020; 26:325-342. [PMID: 33058369 DOI: 10.1111/bjhp.12478] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 08/25/2020] [Indexed: 01/05/2023]
Abstract
OBJECTIVES With few empirically supported treatments, functional movement disorders (FMD) can be challenging to manage. To enable service providers to better support people with FMD, this study sought to understand the lived experience of FMD: to gain insight into how individuals make sense of their experience from symptom onset through medical evaluation and diagnosis to post-diagnostic adaptation. DESIGN An interpretative phenomenological analysis (IPA) of patient accounts of living with FMD. METHODS Eight participants were recruited from a UK teaching hospital adult neurology service: seven females, varying in age (20s-70s), FMD symptom type (tremor, dystonia, and tics), and time to diagnosis (10 - 192 months). Semi-structured interviews facilitated participant accounts of key events. Interviews lasted 75-125 minutes and were transcribed verbatim. RESULTS Three super-ordinate themes were apparent. The first covered the experiences of onset ('Something is wrong with me'), including loss of control - with the affected body part often described as a separate entity - threats to identity and disturbance in relationships. 'At last! What now?' outlined the bittersweet experience of diagnosis and of treatments. Third, 'Living my life with it' incorporated ongoing experiences of coping with symptoms. While some continued to struggle with the emotional impact of symptoms, others developed a compassionate relationship with their self and maintained satisfying activities. CONCLUSIONS FMD has a significant impact on patients' relationships with themselves and others, which in turn affects well-being. These findings suggest some nuanced additions to interventions (diagnosis, psychotherapy, physiotherapy, public education.).
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Affiliation(s)
- Mandip Dosanjh
- Leeds Institute of Health Sciences, University of Leeds, UK.,Department of Clinical and Health Psychology, Leeds Teaching Hospitals NHS Trust, UK
| | - Jane Alty
- Department of Neurosciences, Leeds Teaching Hospitals NHS Trust, UK.,College of Health and Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Carol Martin
- Leeds Institute of Health Sciences, University of Leeds, UK
| | - Gary Latchford
- Leeds Institute of Health Sciences, University of Leeds, UK.,Department of Clinical and Health Psychology, Leeds Teaching Hospitals NHS Trust, UK
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