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Saunders C, Bawa H, Aslanyan D, Coleman F, Jinadu H, Sigala N, Medford N. Treatment outcomes in the inpatient management of severe functional neurological disorder: a retrospective cohort study. BMJ Neurol Open 2024; 6:e000675. [PMID: 38979396 PMCID: PMC11227748 DOI: 10.1136/bmjno-2024-000675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 06/10/2024] [Indexed: 07/10/2024] Open
Abstract
Background Functional neurological disorder (FND) is a heterogeneous condition; severe forms can be disabling. Multidisciplinary treatment and rehabilitation are recommended for severe FND, but there remains a lack of evidence for its efficacy and lack of understanding of the predictors and components of recovery. Methods We report clinical outcome data for an inpatient cohort with severe FND. Clinical Global Impression Improvement with treatment is the primary outcome measure. Admission and discharge measures (Euroqol quality of life measures, Beck Depression Inventory, Spielberger Trait Anxiety Inventory, Cambridge Depersonalisation Scale, Illness Perception Questionnaire (Revised) and Functional Mobility Scale) are reported as secondary outcomes. Results We describe an FND cohort (n=52) with chronic illness (mean symptom duration 9.7 years). At admission, there were clinically relevant levels of depression, anxiety and depersonalisation derealisation. At the time of discharge, most (43/52) patients' global condition had improved. Measures of mobility, depression and quality of life also significantly improved while at discharge, symptoms were experienced as more understandable and less distressing than at admission. An admission measure of patient confidence in treatment was predictive of eventual clinical outcome. Conclusions The most frequent outcome of inpatient rehabilitation is global improvement, even when symptoms are chronic and severe, reflected in measurable changes in both physical and psychological functioning. Significant levels of depersonalisation derealisation seen in this patient group suggest that routine enquiry into such experiences could help personalise FND treatment approaches. Patient confidence in treatment is key in determining clinical outcomes.
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Affiliation(s)
- Chloe Saunders
- Department of Neuropsychiatry, South London and Maudsley NHS Foundation Trust, London, UK
- Aarhus University Hospital, Aarhus, Denmark
| | - Hetashi Bawa
- Department of Neuropsychiatry, South London and Maudsley NHS Foundation Trust, London, UK
- Canterbury Christ Church University, Canterbury, UK
| | - Daron Aslanyan
- Department of Neuropsychiatry, South London and Maudsley NHS Foundation Trust, London, UK
| | - Frances Coleman
- Department of Neuropsychiatry, South London and Maudsley NHS Foundation Trust, London, UK
| | - Helen Jinadu
- Department of Neuropsychiatry, South London and Maudsley NHS Foundation Trust, London, UK
| | - Natasha Sigala
- Department of Clinical Neuroscience, Brighton and Sussex Medical School, Brighton, UK
| | - Nick Medford
- Department of Neuropsychiatry, South London and Maudsley NHS Foundation Trust, London, UK
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Scamvougeras A, Castle D. Functional Neurological Disorders: Challenging the Mainstream Agnostic Causative Position. CANADIAN JOURNAL OF PSYCHIATRY. REVUE CANADIENNE DE PSYCHIATRIE 2024; 69:487-492. [PMID: 38584382 PMCID: PMC11168345 DOI: 10.1177/07067437241245957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Affiliation(s)
- Anton Scamvougeras
- Department of Psychiatry, UBC Neuropsychiatry Program, University of British Columbia, Vancouver, British Columbia, Canada
| | - David Castle
- Department of Psychiatry, University of Tasmania, Hobart, Tasmania, Australia
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Naccache L, Munoz-Musat E. A global neuronal workspace model of functional neurological disorders. DIALOGUES IN CLINICAL NEUROSCIENCE 2024; 26:1-23. [PMID: 38767966 PMCID: PMC11107854 DOI: 10.1080/19585969.2024.2340131] [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: 11/06/2023] [Accepted: 04/03/2024] [Indexed: 05/22/2024]
Abstract
We introduce here a general model of Functional Neurological Disorders based on the following hypothesis: a Functional Neurological Disorder could correspond to a consciously initiated voluntary top-down process causing involuntary lasting consequences that are consciously experienced and subjectively interpreted by the patient as involuntary. We develop this central hypothesis according to Global Neuronal Workspace theory of consciousness, that is particularly suited to describe interactions between conscious and non-conscious cognitive processes. We then present a list of predictions defining a research program aimed at empirically testing their validity. Finally, this general model leads us to reinterpret the long-debated links between hypnotic suggestion and functional neurological disorders. Driven by both scientific and therapeutic goals, this theoretical paper aims at bringing closer the psychiatric and neurological worlds of functional neurological disorders with the latest developments of cognitive neuroscience of consciousness.
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Affiliation(s)
- Lionel Naccache
- Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France- Sorbonne Université, UPMC Univ Paris 06, Faculté de Médecine Pitié-Salpêtrière, Sorbonne Université, Paris, France
- Department of Neurology, AP-HP, Hôpital Groupe hospitalier Pitié-Salpêtrière, DMU Neurosciences, Paris, France
- Department of Clinical Neurophysiology, AP-HP, Hôpital Groupe hospitalier Pitié-Salpêtrière, DMU Neurosciences, Paris, France
| | - Esteban Munoz-Musat
- Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France- Sorbonne Université, UPMC Univ Paris 06, Faculté de Médecine Pitié-Salpêtrière, Sorbonne Université, Paris, France
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Ramsay N, Stone J, Fadiloglu K, Baxter M, Hutchison C, Bennett K, Moullaali T, Mathur J, Bridson J, Hoeritzauer I. Functional neurological disorder: A common reason for a neurology inpatient referral. Eur J Neurol 2023; 30:3886-3889. [PMID: 37505203 DOI: 10.1111/ene.16003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/17/2023] [Accepted: 07/23/2023] [Indexed: 07/29/2023]
Abstract
BACKGROUND AND PURPOSE In 2021, the European Academy of Neurology's training requirements were updated to include functional neurological disorder (FND) as a core topic for the first time. To reinforce these changes, we aimed to understand the proportion of inpatients (in non-neurology settings) who are diagnosed with FND. METHODS We prospectively collected data on diagnoses made after inpatient ward reviews from neurology trainees at three tertiary neurology centres in Scotland from April to September 2021. We assessed healthcare utilization data for patients with a diagnosis of FND, epilepsy and epileptic seizures, or a neuroinflammatory disorder over the preceding 12 months. RESULTS There were 437 inpatient reviews for 424 patients by 13 trainees. The largest single diagnosis was FND (n = 80, 18%), followed by epilepsy (n = 64, 14%), primary headache disorder (n = 40, 9%) and neuroinflammatory disorders (n = 28, 6%). There was an uncertain diagnosis for 48 reviews (11%). Compared to patients with epilepsy or neuroinflammatory disorders, patients with FND had a similar number of admissions (2 vs. 2 vs. 1) and brain/spine imaging studies (2 vs. 1 vs. 2). CONCLUSIONS In Scotland, FND was the most common diagnosis made after a request for an inpatient review by a neurologist from another department in the hospital. Patients with FND have similar health resource needs to those with other common neurological disorders when they present to hospitals with tertiary neurology centres. This data supports the inclusion of FND as a core curriculum topic in neurology training.
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Affiliation(s)
- Neil Ramsay
- Institute of Neurological Sciences, Queen Elizabeth University Hospital, Glasgow, UK
| | - Jon Stone
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Kubra Fadiloglu
- Department of Liaison Psychiatry, Western General Hospital, Edinburgh, UK
| | | | | | - Karina Bennett
- Department of Neurology, Aberdeen Royal Infirmary, Aberdeen, UK
| | - Tom Moullaali
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Jai Mathur
- Department of Internal Medicine, University College Hospital, London, UK
| | - James Bridson
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Ingrid Hoeritzauer
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
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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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Mueller C, Szaflarski JP. White matter microstructure and serum biomarkers of inflammation in psychogenic non-epileptic seizures. Neuroimage Clin 2023; 39:103462. [PMID: 37413772 PMCID: PMC10509528 DOI: 10.1016/j.nicl.2023.103462] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/14/2023] [Accepted: 06/22/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND Neuroinflammation may contribute to the pathophysiology of psychogenic non-epileptic seizures (PNES). However, it is unclear whether and to what degree comorbid psychiatric symptoms explain this association. In this study, we investigated the neuroinflammatory signature of PNES and how it compares to that of people with psychiatric conditions (PwPCs). METHODS We prospectively assessed differences in neurite density (NDI), orientation dispersion (ODI), and isotropic diffusion (F-ISO) in 23 participants with PNES and 27 PwPCs, and their relationships to serum levels of tumor necrosis factor (TNF)-α, TNF receptor 1 (TNF-R1), TNF-related apoptosis-inducing ligand (TRAIL), interleukin (IL)-6, intercellular adhesion molecule (ICAM)-1, and monocyte chemoattractant protein (MCP)-1 using voxelwise multiple linear regressions. Pearson correlations between serum biomarkers and clinical symptoms were also obtained. RESULTS There were no white matter (WM) microstructural differences between groups. In PNES, TNF-R1 was negatively associated with NDI in the right uncinate fasciculus (UF) and positively associated with F-ISO in the left UF. IL-6 was positively associated with NDI and negatively with F-ISO in the left UF. ICAM-1 was positively associated with ODI in the left UF. TNF-α was negatively associated with ODI in the left cingulum bundle. The opposite relationships were observed in PwPCs. Higher TNF-R1 was associated with higher depression, anxiety, lower emotional quality of life, and higher levels of disability in PNES. CONCLUSIONS For the first time, we report relationships between peripheral inflammatory biomarkers and WM integrity in PNES, including abnormalities in the UF and cingulum bundle. Our results suggest that serum biomarkers of inflammation may, with additional studies, become a useful aid to PNES diagnosis, especially in settings where video-EEG is not available. The lack of group differences in WM microstructure suggests that previously identified WM abnormalities in PNES versus healthy controls may be related to psychological comorbidities of PNES.
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Affiliation(s)
- Christina Mueller
- Department of Neurology, University of Alabama at Birmingham (UAB), Heersink School of Medicine, Birmingham, AL, USA.
| | - Jerzy P Szaflarski
- Department of Neurology, University of Alabama at Birmingham (UAB), Heersink School of Medicine, Birmingham, AL, USA; Departments of Neurobiology and Neurosurgery, University of Alabama at Birmingham (UAB), Heersink School of Medicine, Birmingham, AL, USA.
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Yu JRT, Shuaib U, Mate KKV, Kaur H, Sonneborn C, Hogue O, Morrison J, Yu XX. Identifying misconceptions and knowledge gaps in functional neurological disorders among emergency care providers. J Clin Neurosci 2023; 114:81-88. [PMID: 37329664 DOI: 10.1016/j.jocn.2023.06.008] [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: 02/15/2023] [Revised: 06/06/2023] [Accepted: 06/09/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Functional Neurologic Disorders (FND) are a common but heterogeneous group of disabling conditions. The Emergency Department (ED) is an important venue for care and referral as it is often the first point of contact when patients with FND are faced with a crisis or exacerbation of symptoms. METHODS ED providers (n = 273) practicing in the Cleveland Clinic Foundation Northeast Ohio network were invited to participate through secure web application electronic surveys. Data were collected on practice profiles, knowledge, attitudes, management of FND, and awareness of available resources for FND. RESULTS Sixty providers completed the survey (22% response rate; n = 50 ED physicians, 10 advanced care providers) with 95.0% (n = 57) reporting a lack of understanding about FND. The terms Psychogenic Nonepileptic Seizures and stress induced/stress related disease were used by 60.0% (n = 36) and 58.3% (n = 35) respectively. Ninety percent (n = 53) rated their experience with managing FND patients as at least more difficult. Eighty- five percent (n = 51) agreed with "rule out others" and 60% (n = 36) agreed with "caused by psych stress". Eighty six percent (n = 50) believe that there is a difference between FND from malingering. Only one respondent was familiar with any FND resources and 79% (n = 47) reported the need for FND specific educational materials. CONCLUSION This survey revealed major gaps in knowledge, inaccurate perceptions, and management that differs from the current standard of care among ED providers caring for patients with FND. Educational opportunities are needed to guide diagnosis and evidence-based treatment to optimize management of patients with FND.
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Affiliation(s)
- Jeryl Ritzi T Yu
- Center for Neurological Restoration, Neurological Institute, Cleveland Clinic, OH, United States
| | - Umar Shuaib
- Center for Neurological Restoration, Neurological Institute, Cleveland Clinic, OH, United States
| | - Kedar K V Mate
- Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada; Department of Musculoskeletal Oncology, Mayo Clinic, Arizona, United States
| | - Harpreet Kaur
- Center for Neurological Restoration, Neurological Institute, Cleveland Clinic, OH, United States
| | - Claire Sonneborn
- Center for Neurological Restoration, Neurological Institute, Cleveland Clinic, OH, United States; Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic, OH, United States
| | - Olivia Hogue
- Center for Neurological Restoration, Neurological Institute, Cleveland Clinic, OH, United States; Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic, OH, United States
| | - James Morrison
- Emergency Services Institute & Respiratory Institute, Cleveland Clinic, OH, United States
| | - Xin Xin Yu
- Center for Neurological Restoration, Neurological Institute, Cleveland Clinic, OH, United States.
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8
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Yan J, Kothur K, Mohammad S, Chung J, Patel S, Jones HF, Keating BA, Han VX, Webster R, Ardern-Holmes S, Antony J, Menezes MP, Tantsis E, Gill D, Gupta S, Kandula T, Sampaio H, Farrar MA, Troedson C, Andrews PI, Pillai SC, Heng B, Guillemin GJ, Guller A, Bandodkar S, Dale RC. CSF neopterin, quinolinic acid and kynurenine/tryptophan ratio are biomarkers of active neuroinflammation. EBioMedicine 2023; 91:104589. [PMID: 37119734 PMCID: PMC10165192 DOI: 10.1016/j.ebiom.2023.104589] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 04/12/2023] [Accepted: 04/12/2023] [Indexed: 05/01/2023] Open
Abstract
BACKGROUND Defining the presence of acute and chronic brain inflammation remains a challenge to clinicians due to the heterogeneity of clinical presentations and aetiologies. However, defining the presence of neuroinflammation, and monitoring the effects of therapy is important given its reversible and potentially damaging nature. We investigated the utility of CSF metabolites in the diagnosis of primary neuroinflammatory disorders such as encephalitis and explored the potential pathogenic role of inflammation in epilepsy. METHODS Cerebrospinal fluid (CSF) collected from 341 paediatric patients (169 males, median age 5.8 years, range 0.1-17.1) were examined. The patients were separated into a primary inflammatory disorder group (n = 90) and epilepsy group (n = 80), who were compared with three control groups including neurogenetic and structural (n = 76), neurodevelopmental disorders, psychiatric and functional neurological disorders (n = 63), and headache (n = 32). FINDINGS There were statistically significant increases of CSF neopterin, kynurenine, quinolinic acid and kynurenine/tryptophan ratio (KYN/TRP) in the inflammation group compared to all control groups (all p < 0.0003). As biomarkers, at thresholds with 95% specificity, CSF neopterin had the best sensitivity for defining neuroinflammation (82%, CI 73-89), then quinolinic acid (57%, CI 47-67), KYN/TRP ratio (47%, CI 36-56) and kynurenine (37%, CI 28-48). CSF pleocytosis had sensitivity of 53%, CI 42-64). The area under the receiver operating characteristic curve (ROC AUC) of CSF neopterin (94.4% CI 91.0-97.7%) was superior to that of CSF pleocytosis (84.9% CI 79.5-90.4%) (p = 0.005). CSF kynurenic acid/kynurenine ratio (KYNA/KYN) was statistically decreased in the epilepsy group compared to all control groups (all p ≤ 0.0003), which was evident in most epilepsy subgroups. INTERPRETATION Here we show that CSF neopterin, kynurenine, quinolinic acid and KYN/TRP are useful diagnostic and monitoring biomarkers of neuroinflammation. These findings provide biological insights into the role of inflammatory metabolism in neurological disorders and provide diagnostic and therapeutic opportunities for improved management of neurological diseases. FUNDING Financial support for the study was granted by Dale NHMRC Investigator grant APP1193648, University of Sydney, Petre Foundation, Cerebral Palsy Alliance and Department of Biochemistry at the Children's Hospital at Westmead. Prof Guillemin is funded by NHMRC Investigator grant APP 1176660 and Macquarie University.
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Affiliation(s)
- Jingya Yan
- Kids Neuroscience Centre, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia; Department of Biochemistry, The Children's Hospital at Westmead, NSW, Australia; Clinical School, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Kavitha Kothur
- Kids Neuroscience Centre, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, The University of Sydney, Westmead, NSW, Australia
| | - Shekeeb Mohammad
- Kids Neuroscience Centre, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia; Clinical School, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, The University of Sydney, Westmead, NSW, Australia
| | - Jason Chung
- Department of Biochemistry, The Children's Hospital at Westmead, NSW, Australia; Clinical School, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Shrujna Patel
- Kids Neuroscience Centre, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia; Clinical School, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Hannah F Jones
- Starship Hospital, Centre for Brain Research, Faculty of Medical and Health Sciences, University of Auckland, New Zealand
| | - Brooke A Keating
- Kids Neuroscience Centre, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia; Clinical School, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Velda X Han
- Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore, Singapore
| | - Richard Webster
- TY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, The University of Sydney, Westmead, NSW, Australia
| | - Simone Ardern-Holmes
- TY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, The University of Sydney, Westmead, NSW, Australia
| | - Jayne Antony
- TY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, The University of Sydney, Westmead, NSW, Australia
| | - Manoj P Menezes
- Clinical School, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, The University of Sydney, Westmead, NSW, Australia
| | - Esther Tantsis
- Kids Neuroscience Centre, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, The University of Sydney, Westmead, NSW, Australia
| | - Deepak Gill
- Kids Neuroscience Centre, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, The University of Sydney, Westmead, NSW, Australia
| | - Sachin Gupta
- TY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, The University of Sydney, Westmead, NSW, Australia
| | - Tejaswi Kandula
- Department of Neurology, Sydney Children's Hospital Network, Sydney, NSW, Australia
| | - Hugo Sampaio
- Department of Neurology, Sydney Children's Hospital Network, Sydney, NSW, Australia
| | - Michelle A Farrar
- Department of Neurology, Sydney Children's Hospital Network, Sydney, NSW, Australia; Discipline of Paediatrics and Child Health, School of Clinical Medicine, UNSW Medicine and Health, UNSW Sydney, NSW, Australia
| | - Christopher Troedson
- Clinical School, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia; TY Nelson Department of Neurology and Neurosurgery, The Children's Hospital at Westmead, The University of Sydney, Westmead, NSW, Australia
| | - P Ian Andrews
- Department of Neurology, Sydney Children's Hospital Network, Sydney, NSW, Australia
| | - Sekhar C Pillai
- Department of Neurology, Sydney Children's Hospital Network, Sydney, NSW, Australia
| | - Benjamin Heng
- Neuroinflammation Group, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, NSW, Australia
| | - Gilles J Guillemin
- Neuroinflammation Group, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, NSW, Australia
| | - Anna Guller
- Computational NeuroSurgery Lab, Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Sushil Bandodkar
- Department of Biochemistry, The Children's Hospital at Westmead, NSW, Australia; Clinical School, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia
| | - Russell C Dale
- Kids Neuroscience Centre, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia; Clinical School, The Children's Hospital at Westmead, Faculty of Medicine and Health, University of Sydney, NSW, Australia.
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9
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Lagrand TJ, Vaezipour A, Hill A, Horswill MS, Lehn AC. Hazard Perception Skill and Driver Behavior in Patients With Functional Neurologic Disorders. Neurology 2023; 100:e1248-e1256. [PMID: 36539297 PMCID: PMC10033169 DOI: 10.1212/wnl.0000000000206757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 11/16/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Driving in patients with functional neurologic disorders (FND) is a major concern, but current guidelines (where they exist) are based on expert consensus only due to a lack of relevant empirical evidence. This study aimed to provide such evidence by comparing drivers with FND with healthy controls on aspects of driving performance and behavior important to crash risk, including hazard perception skill. METHODS Participants completed validated self-report questionnaires of driving behaviors (assessing lapses, errors, violations, and attentional issues) and 2 computer-based measures of hazard perception skill (both known to be associated with crash risk). RESULTS We compared 43 patients who experience dissociative attacks or functional motor symptoms and 43 healthy controls. Patients with FND self-reported significantly more driving lapses and driving errors compared with healthy controls. However, there were no significant between-group differences in self-reports of ordinary violations, aggressive violations, or attention-related errors. Participants in the FND group and healthy controls exhibited a similar performance on a response time hazard perception test (6.27 vs 5.51 seconds, p = 0.245). However, participants with FND remarkably outperformed the controls in the number of plausible predictions they made in a verbal response hazard prediction test (1.55 vs 1.18 predictions per clip, p = 0.006). DISCUSSION Our findings suggest that the ability of drivers with FND to predict traffic hazards in between attacks or flares is not worse than that of healthy individuals, with the possibility that it might even be better under some circumstances. Further studies with various populations are needed to replicate our findings.
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Affiliation(s)
- Tjerk J Lagrand
- From the Department of Neurology (T.J.L., A.C.L.), Princess Alexandra Hospital, Woolloongabba, Brisbane, Queensland, Australia; RECOVER Injury Research Centre (A.V.), The University of Queensland, Brisbane, Australia., Minerals Industry Safety and Health Centre, Sustainable Minerals Institute (A.H.), The University of Queensland, Brisbane, Australia; School of Psychology (A.H., M.S.H.), The University of Queensland, Brisbane, Australia., and School of Medicine (A.C.L.), The University of Queensland, Brisbane, Australia.
| | - Atiyeh Vaezipour
- From the Department of Neurology (T.J.L., A.C.L.), Princess Alexandra Hospital, Woolloongabba, Brisbane, Queensland, Australia; RECOVER Injury Research Centre (A.V.), The University of Queensland, Brisbane, Australia., Minerals Industry Safety and Health Centre, Sustainable Minerals Institute (A.H.), The University of Queensland, Brisbane, Australia; School of Psychology (A.H., M.S.H.), The University of Queensland, Brisbane, Australia., and School of Medicine (A.C.L.), The University of Queensland, Brisbane, Australia
| | - Andrew Hill
- From the Department of Neurology (T.J.L., A.C.L.), Princess Alexandra Hospital, Woolloongabba, Brisbane, Queensland, Australia; RECOVER Injury Research Centre (A.V.), The University of Queensland, Brisbane, Australia., Minerals Industry Safety and Health Centre, Sustainable Minerals Institute (A.H.), The University of Queensland, Brisbane, Australia; School of Psychology (A.H., M.S.H.), The University of Queensland, Brisbane, Australia., and School of Medicine (A.C.L.), The University of Queensland, Brisbane, Australia
| | - Mark S Horswill
- From the Department of Neurology (T.J.L., A.C.L.), Princess Alexandra Hospital, Woolloongabba, Brisbane, Queensland, Australia; RECOVER Injury Research Centre (A.V.), The University of Queensland, Brisbane, Australia., Minerals Industry Safety and Health Centre, Sustainable Minerals Institute (A.H.), The University of Queensland, Brisbane, Australia; School of Psychology (A.H., M.S.H.), The University of Queensland, Brisbane, Australia., and School of Medicine (A.C.L.), The University of Queensland, Brisbane, Australia
| | - Alexander C Lehn
- From the Department of Neurology (T.J.L., A.C.L.), Princess Alexandra Hospital, Woolloongabba, Brisbane, Queensland, Australia; RECOVER Injury Research Centre (A.V.), The University of Queensland, Brisbane, Australia., Minerals Industry Safety and Health Centre, Sustainable Minerals Institute (A.H.), The University of Queensland, Brisbane, Australia; School of Psychology (A.H., M.S.H.), The University of Queensland, Brisbane, Australia., and School of Medicine (A.C.L.), The University of Queensland, Brisbane, Australia
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10
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Lagrand TJ, Jones M, Bernard A, Lehn AC. Health Care Utilization in Functional Neurologic Disorders: Impact of Explaining the Diagnosis of Functional Seizures on Health Care Costs. Neurol Clin Pract 2023; 13:e200111. [PMID: 36865642 PMCID: PMC9973286 DOI: 10.1212/cpj.0000000000200111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 10/10/2022] [Indexed: 01/13/2023]
Abstract
Background and Objective The objectives of this study were to investigate health care utilization costs of patients with video-electroencephalography (VEEG)-confirmed functional seizures (FS), determine whether patients who received a satisfactory functional neurologic disorder (FND) diagnosis explanation had reduced health care utilization compared with those with a poor explanation; and to quantify the overall health care costs 2 years prediagnosis and postdiagnosis for those receiving a different explanation. Methods Patients with VEEG-confirmed pure FS (pFS) or mixed (functional seizure plus epileptic seizures) diagnosis between July 1, 2017, and July 1, 2019, were evaluated. Explanation of the diagnosis was determined "unsatisfactory" or "satisfactory" using self-developed criteria, and health care utilization data were collected using an itemized list. The subsequent costs 2 years post-FND diagnosis were compared with those 2 years before, and cost outcomes were compared between both groups. Results In patients who received a satisfactory explanation (n = 18), total health care costs were reduced from $169,803 to $117,133 USD (-31%). An increase in costs was found ($73,430 to $186,553 USD = +154%) in patients with pPNES after an unsatisfactory explanation (n = 7). On an individual level, 78% with a satisfactory explanation saw a reduction in total health care costs per year (mean $5,111 USD to $1,728 USD), and in 57%, an unsatisfactory explanation led to an increase (mean $4,425 to $20,524 USD). A similar effect was seen from explanation on patients with a dual diagnosis. Discussion The method of communicating an FND diagnosis has a significant impact on subsequent health care utilization. Those receiving satisfactory explanations demonstrated reduced health care utilization, whereas an unsatisfactory explanation resulted in additional expenses.
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Affiliation(s)
- Tjerk J Lagrand
- Department of Neurology (TJL, MCD, ACL), Princess Alexandra Hospital, Woolloongabba, Brisbane, Queensland, Australia; QCIF Bioinformatics (AB), Institute for Molecular Bioscience, The University of Queensland, Brisbane; and University of Queensland (ACL), Brisbane, Australia
| | - Maryon Jones
- Department of Neurology (TJL, MCD, ACL), Princess Alexandra Hospital, Woolloongabba, Brisbane, Queensland, Australia; QCIF Bioinformatics (AB), Institute for Molecular Bioscience, The University of Queensland, Brisbane; and University of Queensland (ACL), Brisbane, Australia
| | - Anne Bernard
- Department of Neurology (TJL, MCD, ACL), Princess Alexandra Hospital, Woolloongabba, Brisbane, Queensland, Australia; QCIF Bioinformatics (AB), Institute for Molecular Bioscience, The University of Queensland, Brisbane; and University of Queensland (ACL), Brisbane, Australia
| | - Alexander C Lehn
- Department of Neurology (TJL, MCD, ACL), Princess Alexandra Hospital, Woolloongabba, Brisbane, Queensland, Australia; QCIF Bioinformatics (AB), Institute for Molecular Bioscience, The University of Queensland, Brisbane; and University of Queensland (ACL), Brisbane, Australia
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11
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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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12
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Dono F, Evangelista G, Consoli S, Pasini F, Russo M, Nucera B, Rinaldi F, Battaglia G, Vollono C, Brigo F, Onofrj M, Sensi SL, Frazzini V, Anzellotti F. Psychogenic non-epileptic seizures (PNES) in the COVID-19 pandemic era: A systematic review with individual patients' analysis. J Psychosom Res 2022; 162:111046. [PMID: 36183575 DOI: 10.1016/j.jpsychores.2022.111046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 09/01/2022] [Accepted: 09/19/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Psychogenic non-epileptic seizures (PNES) resemble epileptic seizures but are not due to underlying epileptic activity and in some cases coexist alongside epilepsy. We described the clinical characteristics of patients with PNES as reported in the literature from the outbreak of the COVID-19 pandemic. We evaluated differences between patients with a diagnosis made immediately before the pandemic (pPNES) and those newly diagnosed during it (nPNES). METHODS A systematic search with individual patient analysis of PNES cases published since the COVID-19 pandemic outbreak was performed. Differences between pPNES and nPNES were analyzed using Chi-square or Fisher exact test. RESULTS Eleven articles were included, with 133 patients (106 pPNES and 27 nPNES). In the pPNES group, PNES frequency increased during the pandemic in 20/106 patients, whereas in 78/106, the frequency remained stable or decreased. nPNES was associated with higher risks of SARS-CoV-2 infection and epilepsy diagnosis, whereas psychiatric comorbidities were less frequent. CONCLUSIONS During the pandemic, most patients with pPNES remained stable or improved, whereas nPNES was associated with a lower burden of psychiatric comorbidities. These intriguing findings suggest that, at least in some patients, the COVID-19 pandemic may not necessarily lead to worsening in the frequency of PNES and quality of life.
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Affiliation(s)
- Fedele Dono
- Department of Neuroscience, Imaging and Clinical Science, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy; Behavioral Neurology and Molecular Neurology Units, Center for Advanced Studies and Technology - CAST-, Institute for Advanced Biomedical Technologies- ITAB, University G. d'Annunzio of Chieti-Pescara, Italy.
| | - Giacomo Evangelista
- Department of Neuroscience, Imaging and Clinical Science, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy; Behavioral Neurology and Molecular Neurology Units, Center for Advanced Studies and Technology - CAST-, Institute for Advanced Biomedical Technologies- ITAB, University G. d'Annunzio of Chieti-Pescara, Italy
| | - Stefano Consoli
- Department of Neuroscience, Imaging and Clinical Science, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy; Behavioral Neurology and Molecular Neurology Units, Center for Advanced Studies and Technology - CAST-, Institute for Advanced Biomedical Technologies- ITAB, University G. d'Annunzio of Chieti-Pescara, Italy
| | - Francesco Pasini
- Department of Neurology, San Gerardo Hospital ASST Monza, Monza, Italy
| | - Mirella Russo
- Department of Neuroscience, Imaging and Clinical Science, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy; Behavioral Neurology and Molecular Neurology Units, Center for Advanced Studies and Technology - CAST-, Institute for Advanced Biomedical Technologies- ITAB, University G. d'Annunzio of Chieti-Pescara, Italy
| | - Bruna Nucera
- Department of Neurology, Hospital of Merano (SABES-ASDAA), Merano, Italy
| | - Fabrizio Rinaldi
- Department of Neurology, Hospital of Merano (SABES-ASDAA), Merano, Italy
| | - Giulia Battaglia
- Department of Neurology, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - Catello Vollono
- Department of Geriatrics, Neurosciences & Orthopedics Unit of Neurophysiopathology and Sleep Medicine, IRCCS Policlinico Universitario Agostino Gemelli Catholic University, Rome
| | - Francesco Brigo
- Department of Neurology, Hospital of Merano (SABES-ASDAA), Merano, Italy
| | - Marco Onofrj
- Department of Neuroscience, Imaging and Clinical Science, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Stefano L Sensi
- Department of Neuroscience, Imaging and Clinical Science, "G. D'Annunzio" University of Chieti-Pescara, Chieti, Italy; Behavioral Neurology and Molecular Neurology Units, Center for Advanced Studies and Technology - CAST-, Institute for Advanced Biomedical Technologies- ITAB, University G. d'Annunzio of Chieti-Pescara, Italy.
| | - Valerio Frazzini
- AP-HP, Epilepsy Unit, Pitié-Salpêtrière Hospital, and Sorbonne University, France; Brain and Spine Institute (INSERM UMRS1127, CNRS UMR7225, Sorbonne Université), Pitié-Salpêtrière Hospital, Paris, France
| | - Francesca Anzellotti
- Department of Neurology, Epilepsy Center, "SS Annunziata" Hospital, Chieti, Italy
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13
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Udofia A, Rocke T. Case report on psychogenic nonepileptic seizures: A series of unfortunate events. Clin Case Rep 2022; 10:e6430. [PMID: 36245451 PMCID: PMC9552981 DOI: 10.1002/ccr3.6430] [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: 03/25/2022] [Revised: 08/18/2022] [Accepted: 09/20/2022] [Indexed: 11/09/2022] Open
Abstract
Psychogenic nonepileptic seizures, also called Functional Seizures, are a highly disabling form of Functional Neurological Disorder. The diagnosis of PNES could be missed in clinical scenarios where patients exhibit concurrent musculoskeletal/neurological findings. Characterization of convulsions and judicious use of diagnostics are equally valuable in establishing the diagnosis.
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14
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Baidoo L. Functional neurologic disorder (FND) in pediatrics: A clinical review with discussion of FND in the era of COVID-19. Nurse Pract 2022; 47:42-47. [PMID: 36165973 DOI: 10.1097/01.npr.0000873532.17436.85] [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
ABSTRACT Functional neurologic disorder is a complex disorder of truly experienced neurologic symptoms without evidence of underlying neurologic disease. This clinical review focuses on the pediatric population and includes the impacts of the COVID-19 pandemic. Clinician knowledge and early identification can substantially improve patient outcomes.
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Affiliation(s)
- Lauren Baidoo
- Lauren Baidoo is an advanced practice nurse in the Department of Neurology at Ann & Robert H. Lurie Children's Hospital of Chicago in Chicago, Ill
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15
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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.
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Affiliation(s)
- Anumeha Mishra
- Department of Neurology, Govind Ballabh Pant Postgraduate institute of medical education and research; New Delhi, India
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16
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Hebb C, Raynor G, Perez DL, Nappi-Kaehler J, Polich G. The use of rhythmic auditory stimulation for functional gait disorder: A case report. NeuroRehabilitation 2022; 50:219-229. [DOI: 10.3233/nre-228005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Functional gait disorders (FGD) are a common and disabling condition. Consensus-based rehabilitation techniques for treating FGD and other functional neurological disorder presentations at large utilize a variety of therapeutic strategies, including distraction, novel approaches to movement, entrainment, stress/hypervigilance modulation, and psychotherapy. CASE REPORT: Here we present a case of a 24-year-old woman with a complex history of anxiety, depression, left frontal astrocytoma, postural orthostatic tachycardia syndrome (POTS) and FGD. During a multidisciplinary inpatient rehabilitation stay for FGD, the patient underwent rhythmic auditory stimulation (RAS) delivered by a neurologic music therapist in conjunction with physical therapy, occupational therapy, and psychotherapy. RESULTS: The RAS intervention appeared to play a significant role in symptom resolution for this patient. Improvement in the patient’s truncal displacement, foot dragging, and well as overall gait speed occurred following serial RAS trials performed over a single treatment session. Benefits persisted immediately following the intervention and upon subsequent reassessment. Although at four-year follow-up the patient’s FGD symptoms remained resolved, fatigue continued to limit her ambulatory capacity and overall endurance. CONCLUSION: RAS represents a unique therapeutic approach for treating FGD, complementary to existing consensus-based rehabilitation recommendations, and may warrant further consideration by the field.
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Affiliation(s)
- Caitlin Hebb
- MedRhythms, Inc., Boston, MA, USA
- Spaulding Rehabilitation Hospital, Boston, MA, USA
| | - Geoffrey Raynor
- Department of Psychiatry, Brigham’s and Women’s Hospital, Boston, MA, USA
| | - David L. Perez
- Department of Neurology and Psychiatry, Massachusetts General Hospital, Boston, MA, USA
| | | | - Ginger Polich
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Brigham’s and Women’s Hospital, Boston, MA, USA
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17
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Gonsalvez I, Spagnolo P, Dworetzky B, Baslet G. Neurostimulation for the treatment of functional neurological disorder: A systematic review. Epilepsy Behav Rep 2021; 16:100501. [PMID: 34950864 PMCID: PMC8671519 DOI: 10.1016/j.ebr.2021.100501] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/28/2021] [Accepted: 11/04/2021] [Indexed: 01/02/2023] Open
Abstract
Functional Neurological Disorder (FND), also known as conversion disorder, is characterized by neurological symptoms that are incompatible with any known structural disorder and best explained by a biopsychosocial model. Evidence-based treatments for FND are limited, with cognitive behavioral therapy (CBT) and physiotherapy being the most effective interventions [1]. In recent years, functional neuroimaging studies have provided robust evidence of alterations in activity and connectivity in multiple brain networks in FND. This body of evidence suggests that neurocircuitry-based interventions, such as non-invasive brain stimulation techniques (NIBS), may also represent an effective therapeutic option for patients with FND. In this systematic review, we outline the current state of knowledge of NIBS in FND, and discuss limitations and future directions that may help establish the efficacy of NIBS as a therapeutic option for FND.
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Affiliation(s)
- Irene Gonsalvez
- Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Primavera Spagnolo
- Mary Horrigan Connors Center for Women's Health & Gender Biology, Department of Psychiatry, Brigham and Women Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Barbara Dworetzky
- Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Gaston Baslet
- Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
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18
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Jones LL, Rickards H. History of abuse and psychogenic nonepileptic seizures: A systematic review. Seizure 2021; 92:200-204. [PMID: 34555802 DOI: 10.1016/j.seizure.2021.09.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 01/02/2023] Open
Abstract
Psychogenic nonepileptic seizures resemble epileptic seizures but lack the physiological basis of epileptic seizures. We conducted a systematic review to explore whether childhood abuse is a risk factor for subsequent development of PNES. We reviewed only papers with an epilepsy control group, which employed strict criteria for diagnosis of epilepsy and well-validated tools for assessing abuse history. Odds ratios (ORs) for the different categories of childhood abuse and for childhood abuse as a whole were calculated where not previously available, and pooled ORs were calculated where suitable. In papers where OR could not be calculated data are presented as p values. Most Odds Ratios fell between 1.8 and 5.2 with relatively narrow confidence intervals. In 14 out of 18 calculations, 95% confidence intervals did not cross 1. This suggests that the chance of reporting abuse is higher in people with PNES than those with epilepsy and may be a causative factor in developing PNES. Several limitations of the data and directions for future study are discussed.
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Affiliation(s)
- Laura Lloyd Jones
- Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
| | - Hugh Rickards
- Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
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19
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Herbert LD, Kim R, Hassan AA, Wilkinson-Smith A, Waugh JL. When neurologists diagnose functional neurological disorder, why don't they code for it? CNS Spectr 2021; 26:1-30. [PMID: 34521502 PMCID: PMC8920954 DOI: 10.1017/s1092852921000833] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Objective: Clinicians who recognize functional neurological disorders (FND) may not share that diagnosis with patients. Poor communication delays treatment and contributes to substantial disability in FND. Diagnostic (ICD-10) coding, one form of medical communication, offers an insight into clinicians’ face-to-face communication. Therefore, quantifying the phenomenon of non-coding, and identifying beliefs and practice habits that reduce coding, may suggest routes to improve medical communication in FND. Methods: We reviewed all pediatric neurology consultations in our hospital from 2017–2020, selecting those in which neurologists explicitly stated an FND-related diagnosis (N=57). We identified the neurological symptoms and ICD-10 codes assigned for each consultation. In parallel, we reviewed all encounters that utilized FND-related codes to determine whether insurers paid for this care. Finally, we assessed beliefs and practices that influence FND-related coding through a nationwide survey of pediatric neurologists (N=460). Results: After diagnosing FND, neurologists selected FND-related ICD-10 codes in only 22.8% of consultations. 96.2% of neurologists estimated that they would code for non-epileptic seizure (NES) when substantiated by EEG; in practice, they coded for 36.7% of such consultations. For other FND manifestations, neurologists coded in only 13.3% of cases. When presented with FND and non-FND scenarios with equal levels of information, neurologists coded for FND 41% less often. The strongest predictor of non-coding was the outdated belief that FND is a diagnosis of exclusion. Coding for FND never resulted in insurance non-payment. Conclusion: Non-coding for FND is common. Most factors that amplify non-coding also hinder face-to-face communication. Research based on ICD-10 coding (e.g., prevalence, cost) may underestimate the impact of FND by >4-fold.
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20
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O'Connor PJ, Reuber M. 'It's both challenging and probably the most rewarding work' - A qualitative study of psychological therapy provider's experiences of working with people with dissociative seizures. Epilepsy Behav 2021; 122:108156. [PMID: 34175664 DOI: 10.1016/j.yebeh.2021.108156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 10/21/2022]
Abstract
Limited research exists exploring the experiences of psychological therapy providers (PTPs) working with people with dissociative seizures (DS). PTPs play a key role in the treatment of DS, yet sit at the end of a long, often ineffective process of diagnosis and waiting before treatment can commence. This qualitative study was undertaken involving 12 PTPs from specialist DS services throughout England and Scotland. Semi-structured interviews were carried out, using thematic analysis to evaluate the data. Four key themes were identified, "neurological to psychological", "putting the person with DS at the center", "treatment process", and "issues and impact of therapy with patients with DS". The findings showed that an unclear and uncomprehended diagnosis, together with waiting times had a detrimental impact on patients at the starting point of therapy. People with DS were perceived as a heterogeneous group whose treatment needed to be individualized, using the PTPs' full 'toolkit' of modalities and techniques, with a focus on improving quality of life, rather than reducing seizures. The study highlighted the complexity for PTPs of working with major but also accumulated minor traumas, compounded by the impact of DS on both PTPs and treatment. The desire of PTPs to be totally patient-focused meant that individualized treatment was considered essential and meant that participants were doubtful about the possibility of compiling an effective manual for the psychological treatment for DS.
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Affiliation(s)
- Peri Jane O'Connor
- School of Health and Community Studies, Leeds Beckett University, City Campus, Leeds LS1 3HE, United Kingdom.
| | - Markus Reuber
- Academic Neurology Unit, University of Sheffield, Royal Hallamshire Hospital, Glossop Road, Sheffield S10 2JF, United Kingdom.
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21
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Abstract
Medically unexplained symptoms or persistent physical symptoms are common, real and are associated with significant distress, loss of functioning and high healthcare costs. History, examination and appropriate investigations are essential to make a diagnosis. Once the diagnosis has been made, exploring the impact of the symptoms helps us to tailor our advice to patients. This paper sets out a practical approach to taking a history, assessment and stepwise management principles.
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Affiliation(s)
- Mujtaba Husain
- South London and Maudsley NHS Foundation Trust (SLaM), London, UK
| | - Trudie Chalder
- King's College London, London, UK and South London and Maudsley NHS Foundation Trust (SLaM), London, UK
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22
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Barnett C, Mitchell C, Tyson S. The management of patients with functional stroke: speech and language therapists’ views and experiences. Disabil Rehabil 2021; 44:3547-3558. [DOI: 10.1080/09638288.2020.1867910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Caroline Barnett
- University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Claire Mitchell
- Division of Human Communication, Development & Hearing, University of Manchester, Manchester, UK
| | - Sarah Tyson
- Division of Nursing, Midwifery & Social Work, University of Manchester, Manchester, UK
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23
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Abstract
BACKGROUND The aim of this scoping review is to describe the characteristics of patients requiring admission to hospital for functional neurological disorder (FND), assess interventions provided, and evaluate outcomes in the context of acute hospital presentation or elective admission with chronic symptoms (>3 months). METHODS A scoping review was performed. Included articles described adult patients admitted with FND to an inpatient care setting. Articles focusing on psychogenic non-epileptic attacks (PNEA) were excluded. RESULTS The search strategy identified 1963 citations. A total of 34 articles met inclusion criteria, with 458 patients (66% female) described. The pooled mean age of patients in all studies was 40.6 years. Eleven studies described patients with acute presentation, and 16 studies described patients with chronic FND symptoms admitted to the hospital. Motor symptoms were most common. Interventions were most commonly physiotherapy and psychotherapy. Most studies reported partial or complete resolution of symptoms. CONCLUSIONS This scoping review summarizes the literature on the characteristics of patients admitted to the hospital, both with acute and chronic symptoms, for inpatient treatment of FND. When comparing patients with acute to those with chronic symptoms, we found that acute presentations were older (46.9 vs. 43.7 years) and had a higher representation of men (33% vs. 30%). Those presenting with chronic symptoms were more likely to not improve or relapse. We postulate that early diagnosis and inpatient rehabilitation could have a positive impact on outcomes for patients with FND.
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Jones A, Smakowski A, O'Connell N, Chalder T, David AS. Functional stroke symptoms: A prospective observational case series. J Psychosom Res 2020; 132:109972. [PMID: 32126339 DOI: 10.1016/j.jpsychores.2020.109972] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Functional symptoms are a common mimic of stroke in acute stroke settings, but there are no guidelines on how to manage such patients and scant research on their clinical profile. We explore the presentation of patients with functional stroke symptoms at admission and 2-month follow-up. METHODS We conducted a prospective observational study across four SE London acute stroke units, with two-month follow-up. Demographic information, clinical data and GP attendances were recorded. Patients completed self-report measures: Cognitive Behavioural Responses Questionnaire short version, Brief Illness Perception Questionnaire, Hospital Anxiety and Depression Scale, Work and Social Adjustment Scale and Short Form Health Survey. RESULTS Fifty-six patients (mean age: 50.9 years) were recruited at baseline; 40 with isolated functional symptoms, the remaining functional symptoms in addition to stroke. Thirty-one completed self-report follow-up measures. Of 56 participants, 63% were female. Patients presented symptoms across modalities, with unilateral and limb weakness the most frequent. There was inconsistent and ambiguous recording of symptoms on medical records. Approximately 40% of patients reported levels of anxiety and depression above the threshold indicating a probable diagnosis. Higher anxiety was associated with greater resting or all-or-nothing behaviours, embarrassment avoidance and symptom focussing on the CBRQ. Only SF-36 physical functioning improved at follow-up. Less than 50% who responded at follow-up were accessing a treatment, though 82% had ongoing symptoms. CONCLUSION Patients with functional symptoms in stroke settings report substantial distress, associated with cognitive-behavioural responses to symptoms. Follow-up data suggest recovery can be slow, indicating access to supportive interventions should be improved.
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Affiliation(s)
- Abbeygail Jones
- Department of Psychological Medicine, King's College London, United Kingdom
| | - Abigail Smakowski
- Persitent Physical Symptoms Clinical Research and Treatment Unit, South London and Maudsley NHS Foundation Trust, United Kingdom
| | - Nicola O'Connell
- Department of Public Health and Primary Care, Institute of Population Health, Trinity College Dublin, Ireland
| | - Trudie Chalder
- Department of Psychological Medicine, King's College London, United Kingdom
| | - Anthony S David
- UCL Institute of Mental Health, University College London, United Kingdom.
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Crawshaw AA, Cock HR. Medical management of status epilepticus: Emergency room to intensive care unit. Seizure 2019; 75:145-152. [PMID: 31722820 DOI: 10.1016/j.seizure.2019.10.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 12/22/2022] Open
Abstract
In convulsive status epilepticus (SE), achieving seizure control within the first 1-2 hours after onset is a significant determinant of outcome. Treatment is also more likely to work and be cost effective the earlier it is given. Initial first aid measures should be accompanied by establishing intravenous access if possible and administering thiamine and glucose if required. Calling for help will support efficient management, and also the potential for video-recording the events. This can be done as a best interests investigation to inform later management, provided adequate steps to protect data are taken. There is high quality evidence supporting the use of benzodiazepines for initial treatment. Midazolam (buccal, intranasal or intramuscular) has the most evidence where there is no intravenous access, with the practical advantages of administration outweighing the slightly slower onset of action. Either lorazepam or diazepam are suitable IV agents. Speed of administration and adequate initial dosing are probably more important than choice of drug. Although only phenytoin (and its prodrug fosphenytoin) and phenobarbitone are licensed for established SE, a now considerable body of evidence and international consensus supports the utility of both levetiracetam and valproate as options in established status. Both also have the advantage of being well tolerated as maintenance treatment, and possibly a lower risk of serious adverse events. Two adequately powered randomized open studies in children have recently reported, supporting the use of levetiracetam as an alterantive to phenytoin. The results of a large double blind study also including valproate are also imminent, and together likely to change practice in benzodiazepine-resistant SE.
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Affiliation(s)
- Ania A Crawshaw
- Specialist Trainee Neurology, Atkinson Morley Regional Neuroscience Centre, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Hannah R Cock
- Professor of Epilepsy & Medical Education, Consultant Neurologist. Atkinson Morley Regional Neuroscience Centre, St George's University Hospitals NHS Foundation Trust, and Institute of Medical & Biomedical Education, St George's University of London, London, UK.
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