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Ertan D, Tarrada A, El-Hage W, Sanchez S, Four E, Mezouar N, Maillard L, Chrusciel J, Hingray C. Prevalence of posttraumatic stress disorder in adults with epilepsy: A meta-analysis. Seizure 2024; 126:32-42. [PMID: 39919539 DOI: 10.1016/j.seizure.2024.12.013] [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: 07/22/2024] [Revised: 11/25/2024] [Accepted: 12/20/2024] [Indexed: 02/09/2025] Open
Abstract
Many studies highlight the increased risk of posttraumatic stress disorder (PTSD) in people with epilepsy (PWE). Despite the presence of significant research focusing on PTSD in PWE, the methodologies and results of these studies are heterogenous. Therefore, we aim to synthetize the literature and assess the prevalence of PTSD in PWE. We conducted a systematic literature to calculate a pooled prevalence of PTSD in adults with epilepsy. If the studies included patients with functional/dissociative seizure (FDS), a pooled prevalence of PTSD was also calculated for this group. The literature search yielded 10,732 articles, of which 38 studies met our inclusion criteria. High heterogeneity in PTSD prevalence estimates was found across studies for both epilepsy (I2= 97.0 %) and FDS (I2 = 90.7 %). The pooled prevalence of PTSD among the epilepsy group (n = 5545) was 7.7 % [95 % CI: 5.2 %; 11.2 %], whereas for the FDS group (n = 1409), it was 33.4 % [95 % CI: 23.4 %; 45.2 %]. Our sensitivity analysis, including only studies with semi-structured interviews and validated questionnaires, found a pooled PTSD prevalence of 6.7 % [95 % CI: 4.3 to 10.3] in epilepsy patients and 33.1 % [95 % CI: 21.8 to 46.8] in FDS patients. Our study underscores the importance of systematically evaluating traumatic experiences as using standardized, validated scales combined with structured clinical interviews for PTSD diagnosis.
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Affiliation(s)
- Deniz Ertan
- Institut la Teppe, Tain l'Hermitage, France; CHRU de Nancy, Département de Neurologie, Nancy, France
| | | | - Wissam El-Hage
- CHU de Tours, Tours, France; UMR 1253, iBraiN, Université de Tours, INSERM, Tours, France
| | - Stephane Sanchez
- Public Health and Performance Territorial Center, Troyes Hospital Center, Troyes, France
| | | | | | | | - Jan Chrusciel
- Public Health and Performance Territorial Center, Troyes Hospital Center, Troyes, France
| | - Coraline Hingray
- CHRU de Nancy, Département de Neurologie, Nancy, France; Pôle Hospitalo-Universitaire de Psychiatrie d'Adultes du Grand Nancy, Centre Psychothérapique de Nancy, Laxou, France.
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2
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Lawlor M, Huynh B, Humphreys K, Ogunbowale L, Kopelman MD, Plant GT. Observational cohort study of 100 patients presenting with functional visual loss: clinical characteristics and comparison with other functional neurologic disorders. CANADIAN JOURNAL OF OPHTHALMOLOGY 2024; 59:e727-e736. [PMID: 38580217 DOI: 10.1016/j.jcjo.2024.02.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 11/27/2023] [Accepted: 02/25/2024] [Indexed: 04/07/2024]
Abstract
OBJECTIVE Recent research has helped to develop a more detailed understanding of many functional neurologic disorders. The aim of this study was to increase our knowledge of functional visual loss and to compare the findings with those of other functional syndromes. DESIGN Prospective and retrospective observational cohort study. METHODS This study took place at neuro-ophthalmology clinics at 3 major hospitals in London, United Kingdom, over a 12-month period. The study population consisted of 157 participants, 100 with functional visual loss, 21 pathologic control subjects with organic visual loss, and 36 healthy nonpathologic control subjects. All participants had their diagnosis confirmed with a full neuro-ophthalmic examination, neuroimaging, and visual electrophysiology. A full assessment of all participants' medical history was obtained from their general practitioner, and all participants completed a series of questionnaires assessing relevant associations. RESULTS Data were obtained on 157 participants, 100 with functional visual loss, 21 pathologic control subjects with organic visual loss, and 36 healthy nonpathologic control subjects. Participants with functional visual loss were typically female (74%) with a mean age at vision loss of 40.0 ± 16 years. Sixty-four percent of participants had bilateral vision loss; the remainder, unilateral loss. Twenty-six percent of the total cohort had organic visual loss with functional overlay. Fifty percent of participants with functional visual loss had a preexisting psychiatric diagnosis, the most common being a depressive disorder. Sixty-two percent of participants had an ocular history, and 87% had a previously diagnosed medical illness, most commonly neurologic (45%). Thirty-five percent of participants self-reported at least 1 additional functional symptom. CONCLUSIONS Our population of functional visual loss subjects shares many similarities with the majority of patients with other functional neurologic disorders. They are generally young and female and have a greater than expected rate of psychiatric, medical, and coexisting ocular conditions. We found increased rates of precipitating stressors, clinical depression, and organic eye problems in subjects with functional visual loss.
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Affiliation(s)
- Mitchell Lawlor
- Save Sight Institute, Sydney, Australia; Faculty of Medicine and Health, University of Sydney, Sydney, Australia; Department of Ophthalmology, Sydney Eye Hospital, Sydney, Australia
| | - Brandon Huynh
- Department of Ophthalmology, Sydney Eye Hospital, Sydney, Australia.
| | - Kate Humphreys
- Cleveland Clinic London Hospital, London, United Kingdom; Department of Neuropsychiatry and Memory Disorders, St. Thomas Hospital, London, United Kingdom
| | - Lola Ogunbowale
- Department of Neuro-Ophthalmology, Moorfields Eye Hospital, London, United Kingdom
| | - Michael D Kopelman
- Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, United Kingdom
| | - Gordon Terence Plant
- Department of Brain Repair and Rehabilitation, University College London, London, United Kingdom
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3
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Mueller SG, Garga N, Garcia P, Rossi S, Vu A, Neylan T, Laxer KD. The imprint of dissociative seizures on the brain. Neuroimage Clin 2024; 43:103664. [PMID: 39226702 PMCID: PMC11403518 DOI: 10.1016/j.nicl.2024.103664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 08/26/2024] [Accepted: 08/26/2024] [Indexed: 09/05/2024]
Abstract
BACKGROUND Increased resting state functional connectivity between regions involved in emotion control with regions with other specializations, e.g. motor control (emotional hyperconnectivity) is one of the most consistent imaging findings in persons suffering from dissociative seizures (DS). The overall goal of this study was to better characterize DS-related emotional hyperconnectivity using dynamic resting state analysis combined with brainstem volumetry to investigate 1. If emotional hyperconnectivity is restricted to a single state. 2. How volume losses within the modulatory and emotional motor subnetworks of the neuromodulatory system influence the expression of the emotional hyperconnectivity. METHODS 13 persons with dissociative seizures (PDS) (f/m:10/3, mean age (SD) 44.6 (11.5)) and 15 controls (CON) (f/m:10/5, mean age (SD) 41.7 (13.0)) underwent a mental health test battery and structural and functional imaging at 3 T. Deformation based morphometry was used to assess brain volume loss by extracting the mean Jacobian determinants from 457 brain, forebrain and brainstem structures. The bold signals from 445 brainstem and brain rois were extracted with CONN and a dynamic fMRI analysis combined with graph and hierarchical analysis was used to identify and characterize 9 different brain states. Welch's t tests and Kendall tau tests were used for group comparisons and correlation analyses. RESULTS The duration of Brain state 6 was longer in PDS than in CON (93.1(88.3) vs. 23.4(31.2), p = 0.01) and positively correlated with higher degrees of somatization, depression, PTSD severity and dissociation. Its global connectivity was higher in PDS than CON (90.4(3.2) vs 86.5(4.2) p = 0.01) which was caused by an increased connectivity between regions involved in emotion control and regions involved in sense of agency/body control. The brainstem and brainstem-forebrain modulatory and emotional motor subnetworks of the neuromodulatory system were atrophied in PDS. Atrophy severity within the brainstem-forebrain subnetworks was correlated with state 6 dwell time (modulatory: tau = -0.295, p = 0.03; emotional motor: tau = -0.343, p = 0.015) and atrophy severity within the brainstem subnetwork with somatization severity (modulatory: tau = -0.25, p = 0.036; emotional motor: tau = -0.256, p = 0.033). CONCLUSION DS-related emotional hyperconnectivity was restricted to state 6 episodes. The remaining states were not different between PDS and CON. The modulatory subnetwork synchronizes brain activity across brain regions. Atrophy and dysfunction within that subnetwork could facilitate the abnormal interaction between regions involved in emotion control with those controlling sense of agency/body ownership during state 6 and contribute to the tendency for somatization in PDS. The emotional motor subnetwork controls the activity of spinal motoneurons. Atrophy and dysfunction within this subnetwork could impair that control resulting in motor symptoms during DS. Taken together, these findings indicate that DS have a neurophysiological underpinning.
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Affiliation(s)
- S G Mueller
- Center for Imaging of Neurodegenerative Diseases, VAMC, San Francisco, CA, USA; Dept of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA.
| | - N Garga
- VA Epilepsy Center of Excellence, VAMC, San Francisco, CA, USA; Dept. of Neurology, University of California, San Francisco, CA, USA
| | - P Garcia
- Dept. of Neurology, University of California, San Francisco, CA, USA
| | - S Rossi
- Center for Imaging of Neurodegenerative Diseases, VAMC, San Francisco, CA, USA
| | - A Vu
- Center for Imaging of Neurodegenerative Diseases, VAMC, San Francisco, CA, USA; Dept of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - T Neylan
- VA Mental Health, VAMC San Francisco, CA, USA
| | - K D Laxer
- Sutter Pacific Epilepsy Program, California Pacific Medical Center, San Francisco, CA, USA
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4
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Yilgör A, Kurhan F. Is Childhood Trauma a Risk Factor for Resistant Epilepsy? JOURNAL OF INTERPERSONAL VIOLENCE 2024; 39:1228-1244. [PMID: 37815052 DOI: 10.1177/08862605231203964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Childhood traumas have been considered risk factors for many psychiatric disorders. Recent studies demonstrated that childhood traumas can also be considered risk factors for neurological diseases. In this context, the objective of this study is to investigate the effects of childhood traumas on treatment resistance in patients with epilepsy. The study sample consisted of 85 epilepsy patients, 40 male and 45 female, who were diagnosed and followed up by a neurologist. Of these patients, 45 were being followed up with the diagnosis of refractory epilepsy, and 40 were being followed up with the diagnosis of treatment-responsive epilepsy. Cranial magnetic resonance imaging and electroencephalography were performed on all patients. In addition, all patients were administered childhood trauma questionnaire (CTQ) and Hamilton depression rating scale (HAM-D). Epilepsy patients included in the study were divided into refractory epilepsy and treatment-responsive epilepsy groups. There was no significant difference between the groups in sociodemographic characteristics. On the other hand, total CTQ and all CTQ subscale scores and HAM-D scores were significantly higher in the refractory epilepsy group than in the treatment-responsive epilepsy group. This study demonstrates that childhood traumas may contribute to treatment resistance in epilepsy patients. Therefore, it is recommended that a history of childhood traumas be routinely queried in the treatment of epilepsy patients.
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Affiliation(s)
- Abdullah Yilgör
- Faculty of Medicine, Department of Neurology, Van Yuzuncu Yil University, Turkey
| | - Faruk Kurhan
- Faculty of Medicine, Department of Psychiatry, Van Yuzuncu Yil University, Turkey
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5
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Evers MEA, Nelissen J, Vlooswijk MCG, van Kranen-Mastenbroek VHBM, Leentjens AFG, Rouhl RPW. Risk factors for behavioral and psychotic dysregulation at the epilepsy monitoring unit in patients with intracranial electrodes. Epilepsy Behav 2023; 148:109448. [PMID: 37776593 DOI: 10.1016/j.yebeh.2023.109448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 10/02/2023]
Abstract
OBJECTIVE Aberrant behavior in patients with epilepsy (PWE) admitted to an epilepsy monitoring unit (EMU) can endanger their safety. We sought to identify predictive factors for post-ictal behavioral dysregulation and psychosis in patients with refractory epilepsy being monitored at an EMU. METHODS Retrospective data were gathered from electronic patient files of all patients with refractory epilepsy who underwent intracranial registration at our EMU. We assessed behavioral and psychotic dysregulations by reviewing clinical notes, administered emergency medication, and reports of injuries or casualties in patients and nurses. In addition, we compared patient demographic characteristics, clinical characteristics, and antiepileptic drug (AED) profiles between patients with and without behavioral and/or psychotic dysregulation. RESULTS Out of 73 admissions, 23 patients (32%) experienced behavioral dysregulation, and five patients experienced psychosis (7%). Behavioral dysregulation was only significantly associated with a previous history of interictal or postictal psychosis. Psychotic dysregulation is significantly associated with a psychiatric history, including a history of agitation or psychosis, whether or not epilepsy-related. For both types of dysregulations, there was no relation with a pre-admission frequency of seizures, clustering of seizures during monitoring, or a temporal focus of seizures. We could not report a relationship between AED use, tapering, and the occurrence of dysregulation. CONCLUSION We conclude that a psychiatric history, including a history of agitation and psychosis, is related to an increased risk of behavioral and psychotic dysregulation in patients undergoing invasive seizure monitoring at the EMU.
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Affiliation(s)
- M E A Evers
- Department of Neurology, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - J Nelissen
- Department of Neurology, Maastricht University Medical Centre+, Maastricht, the Netherlands; Academic Center for Epileptology Kempenhaeghe/MUMC+, Heeze and Maastricht, the Netherlands
| | - M C G Vlooswijk
- Department of Neurology, Maastricht University Medical Centre+, Maastricht, the Netherlands; Academic Center for Epileptology Kempenhaeghe/MUMC+, Heeze and Maastricht, the Netherlands
| | - V H B M van Kranen-Mastenbroek
- Academic Center for Epileptology Kempenhaeghe/MUMC+, Heeze and Maastricht, the Netherlands; Department of Clinical Neurophysiology, Maastricht University Medical Centre+, Maastricht, the Netherlands; School for Mental Health and Neurosciences, Maastricht University, Maastricht, the Netherlands
| | - A F G Leentjens
- School for Mental Health and Neurosciences, Maastricht University, Maastricht, the Netherlands; Department of Psychiatry and Neuropsychology, Maastricht University Medical Centre+, Maastricht, the Netherlands
| | - R P W Rouhl
- Department of Neurology, Maastricht University Medical Centre+, Maastricht, the Netherlands; Academic Center for Epileptology Kempenhaeghe/MUMC+, Heeze and Maastricht, the Netherlands; School for Mental Health and Neurosciences, Maastricht University, Maastricht, the Netherlands.
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Sobregrau P, Baillès E, Carreño M, Donaire A, Boget T, Setoain X, Bargalló N, Rumià J, V Sánchez Vives M, Pintor L. Psychiatric and psychological assessment of patients with drug-resistant epilepsy and psychogenic nonepileptic seizures (PNES) with no response to previous treatments. Epilepsy Behav 2023; 145:109329. [PMID: 37453292 DOI: 10.1016/j.yebeh.2023.109329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/12/2023] [Accepted: 06/15/2023] [Indexed: 07/18/2023]
Abstract
OBJECTIVE Psychogenic nonepileptic seizures (PNES) are common imitators of epileptic seizures. Refractoriness to antiseizure medication hinders the differential diagnosis between ES and PNES, carrying deleterious consequences in patients with PNES. Psychiatric and psychological characteristics may assist in the differential diagnosis between drug-resistant epilepsy (DRE) and PNES. Nevertheless, current comprehensive psychiatric and psychological descriptive studies on both patient groups are scarce and with several study limitations. This study provides a comprehensive psychiatric and psychological characterization of Spanish patients with DRE and PNES. METHOD A cross-sectional and comparative study was completed with 104 patients with DRE and 21 with PNES. Psychiatric and psychological characteristics were assessed with the HADS, SCL-90-R, NEO-FFI-R, PDQ-4+, COPE, and QOLIE-31 tests. Parametric and non-parametric tests were used, and regression models were fit to further explore factors affecting patients' life quality. RESULTS Patients with PNES had greater levels of somatization and extraversion and were associated with benzodiazepine intake. Patients with DRE showed greater narcissistic personality disorder symptoms than those with PNES. In patients with DRE, difficulty in performing basic needs-related tasks and greater psychological distress severity and seizure frequency were associated with poorer life quality. In contrast, being a woman, having a psychiatric disorder history, and greater psychiatric symptoms' intensity were associated with poorer life quality in patients with PNES. CONCLUSION Patients with DRE and PNES share similar psychiatric and psychological characteristics, with only very few being significantly different.
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Affiliation(s)
- Pau Sobregrau
- Faculty of Psychology, University of Barcelona (UB), Barcelona 08007, Spain; Department of Psychiatry, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain.
| | - Eva Baillès
- Health Psychology Unit, Psychiatry Department, Vall d'Hebron, Barcelona 08035, Spain
| | - Mar Carreño
- Clinical Institute of Neurosciences, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain; Epilepsy Unit, Neurology Department, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain; Biomedical Research Institute August Pi i Sunyer (IDIBAPS), University Hospital Clinic of Barcelona, Barcelona 08036, Spain
| | - Antonio Donaire
- Clinical Institute of Neurosciences, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain; Epilepsy Unit, Neurology Department, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain; Biomedical Research Institute August Pi i Sunyer (IDIBAPS), University Hospital Clinic of Barcelona, Barcelona 08036, Spain
| | - Teresa Boget
- Clinical Institute of Neurosciences, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain; Epilepsy Unit, Neurology Department, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain
| | - Xavier Setoain
- Clinical Institute of Neurosciences, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain; Epilepsy Unit, Neurology Department, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain; Biomedical Research Institute August Pi i Sunyer (IDIBAPS), University Hospital Clinic of Barcelona, Barcelona 08036, Spain
| | - Núria Bargalló
- Clinical Institute of Neurosciences, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain; Epilepsy Unit, Neurology Department, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain; Biomedical Research Institute August Pi i Sunyer (IDIBAPS), University Hospital Clinic of Barcelona, Barcelona 08036, Spain
| | - Jordi Rumià
- Clinical Institute of Neurosciences, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain; Epilepsy Unit, Neurology Department, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain
| | - María V Sánchez Vives
- Biomedical Research Institute August Pi i Sunyer (IDIBAPS), University Hospital Clinic of Barcelona, Barcelona 08036, Spain; Department of Cognition, Development and Educational Psychology, Faculty of Psychology, University of Barcelona (UB), Barcelona 08007, Spain
| | - Luís Pintor
- Department of Psychiatry, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain; Clinical Institute of Neurosciences, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain; Epilepsy Unit, Neurology Department, University Hospital Clinic of Barcelona (HCP), Barcelona 08036, Spain; Biomedical Research Institute August Pi i Sunyer (IDIBAPS), University Hospital Clinic of Barcelona, Barcelona 08036, Spain
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Carle-Toulemonde G, Goutte J, Do-Quang-Cantagrel N, Mouchabac S, Joly C, Garcin B. Overall comorbidities in functional neurological disorder: A narrative review. L'ENCEPHALE 2023:S0013-7006(23)00086-6. [PMID: 37414721 DOI: 10.1016/j.encep.2023.06.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 06/06/2023] [Indexed: 07/08/2023]
Abstract
INTRODUCTION The importance to assess and include the frequent comorbidities in the personalised care management plan of patients with functional neurological disorders (FND) has arisen through the years. FND patients are not only complaining from motor and/or sensory symptoms. They also report some non-specific symptoms that participate to the burden of FND. In this narrative review, we aim to better describe these comorbidities in terms of prevalence, clinical characteristics and their variability depending on the subtype of FND. METHODS The literature was searched for on Medline and PubMed. The search was narrowed to articles between 2000 and 2022. RESULTS Fatigue is the most common symptom reported in relation to FND (from 47 to 93%), followed by cognitive symptoms (from 80 to 85%). Psychiatric disorders are reported in 40 to 100% FND patients, depending on the FND subtype (functional motor disorder [FMD], functional dissociative seizures [FDS]…) but also on the type of psychiatric disorder (anxiety disorders being the most frequent, followed by mood disorders and neurodevelopmental disorders). Stress factors such as childhood trauma exposure (emotional neglect and physical abuse predominantly) have also been identified in up to 75% of FND patients, along with maladaptive coping strategies. Organic disorders are commonly reported in FND, such as neurological disorders (including epilepsy in FDS [20%] and FMD in Parkinson's Disease [7%]). Somatic symptom disorders including chronic pain syndromes are frequently associated to FND (about 50%). To be noted, recent data also suggest a high comorbidity between FND and hypermobile Ehlers Danlos Syndrome (about 55%). CONCLUSION Put together, this narrative review highlights the high burden of FND patients, not only due to somatosensory alterations but also by considering the frequent comorbidities reported. Thus, such comorbidities must be taken into consideration when defining the FND personalised care management strategy for the patients.
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Affiliation(s)
| | - Julie Goutte
- Internal Medicine Department, Saint-Etienne University Hospital, Saint-Priest-en-Jarez, France
| | | | - Stéphane Mouchabac
- Sorbonne University, Department of Psychiatry, AP-HP, Saint-Antoine University Hospital, Paris, France
| | - Charlotte Joly
- Neurology Department, Assistance Publique-Hôpitaux de Paris, AP-HP Avicenne University Hospital, Bobigny, France
| | - Béatrice Garcin
- Neurology Department, Assistance Publique-Hôpitaux de Paris, AP-HP Avicenne University Hospital, Bobigny, France
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Milano BA, Moutoussis M, Convertino L. The neurobiology of functional neurological disorders characterised by impaired awareness. Front Psychiatry 2023; 14:1122865. [PMID: 37009094 PMCID: PMC10060839 DOI: 10.3389/fpsyt.2023.1122865] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 02/24/2023] [Indexed: 03/18/2023] Open
Abstract
We review the neurobiology of Functional Neurological Disorders (FND), i.e., neurological disorders not explained by currently identifiable histopathological processes, in order to focus on those characterised by impaired awareness (functionally impaired awareness disorders, FIAD), and especially, on the paradigmatic case of Resignation Syndrome (RS). We thus provide an improved more integrated theory of FIAD, able to guide both research priorities and the diagnostic formulation of FIAD. We systematically address the diverse spectrum of clinical presentations of FND with impaired awareness, and offer a new framework for understanding FIAD. We find that unraveling the historical development of neurobiological theory of FIAD is of paramount importance for its current understanding. Then, we integrate contemporary clinical material in order to contextualise the neurobiology of FIAD within social, cultural, and psychological perspectives. We thus review neuro-computational insights in FND in general, to arrive at a more coherent account of FIAD. FIAD may be based on maladaptive predictive coding, shaped by stress, attention, uncertainty, and, ultimately, neurally encoded beliefs and their updates. We also critically appraise arguments in support of and against such Bayesian models. Finally, we discuss implications of our theoretical account and provide pointers towards an improved clinical diagnostic formulation of FIAD. We suggest directions for future research towards a more unified theory on which future interventions and management strategies could be based, as effective treatments and clinical trial evidence remain limited.
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Affiliation(s)
- Beatrice Annunziata Milano
- Institute of Life Sciences, Sant'Anna School of Advanced Studies, Pisa, Italy
- Faculty of Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Michael Moutoussis
- Wellcome Centre for Human Neuroimaging, University College London, London, United Kingdom
- Max Planck UCL Centre for Computational Psychiatry and Ageing Research, University College London, London, United Kingdom
- National Hospital of Neurology and Neurosurgery (UCLH), London, United Kingdom
| | - Laura Convertino
- Wellcome Centre for Human Neuroimaging, University College London, London, United Kingdom
- National Hospital of Neurology and Neurosurgery (UCLH), London, United Kingdom
- Institute of Cognitive Neuroscience, University College London, London, United Kingdom
- *Correspondence: Laura Convertino,
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9
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Yang T, Roberts C, Winton-Brown T, Lloyd M, Kwan P, O'Brien TJ, Velakoulis D, Rayner G, Malpas CB. Childhood trauma in patients with epileptic vs nonepileptic seizures. Epilepsia 2023; 64:184-195. [PMID: 36300720 PMCID: PMC10100454 DOI: 10.1111/epi.17449] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 01/25/2023]
Abstract
OBJECTIVE Childhood trauma has been implicated as a risk factor for the etiology of psychogenic nonepileptic seizures (PNES). Relatively little attention has been paid to whether profiles of specific trauma types differ between patients with epilepsy and PNES. Investigating childhood trauma profiles in these patient groups may identify psychological vulnerabilities that predispose to developing PNES, and aid early diagnoses, prevention, and treatment. METHODS Data were collected from two cohorts (nRetrospective = 203; nProspective = 209) admitted to video-electroencephalography (EEG) monitoring units in Melbourne Australia. The differences in Childhood Trauma Questionnaire domain score between patient groups were investigated using standardized effect sizes and general linear mixed-effects models (GLMMs). Receiver-operating characteristic curves were used to investigate classification accuracy. RESULTS In the retrospective cohort, patients diagnosed with PNES reported greater childhood emotional abuse, emotional neglect, physical abuse, sexual abuse, and physical neglect relative to patients with epilepsy. These differences were replicated in the prospective cohort, except for physical abuse. GLMMs revealed significant main effects for group in both cohorts, but no evidence for any group by domain interactions. Reported sexual abuse showed the best screening performance of PNES, although no psychometric scores were adequate as isolated measures. SIGNIFICANCE Patients with PNES report a greater frequency of childhood trauma than patients with epilepsy. This effect appears to hold across all trauma types, with no strong evidence emerging for a particular trauma type that is more prevalent in PNES. From a practical perspective, inquiry regarding a history of sexual abuse shows the most promise as a screening measure.
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Affiliation(s)
- Tianren Yang
- Melbourne School of Psychological Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Caitlin Roberts
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria, Australia
| | - Toby Winton-Brown
- Alfred Brain, Alfred Health, Melbourne, Victoria, Australia.,Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Victoria, Australia.,Department of Psychiatry, Alfred Health, Melbourne, Victoria, Australia
| | - Michael Lloyd
- Alfred Brain, Alfred Health, Melbourne, Victoria, Australia.,Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Victoria, Australia.,Department of Psychiatry, Alfred Health, Melbourne, Victoria, Australia
| | - Patrick Kwan
- Alfred Brain, Alfred Health, Melbourne, Victoria, Australia.,Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Terence J O'Brien
- Alfred Brain, Alfred Health, Melbourne, Victoria, Australia.,Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Dennis Velakoulis
- Neuropsychiatry, Royal Melbourne Hospital, Melbourne, Victoria, Australia.,Department of Psychiatry, The University of Melbourne, Melbourne, Victoria, Australia
| | - Genevieve Rayner
- Melbourne School of Psychological Sciences, The University of Melbourne, Parkville, Victoria, Australia.,Alfred Brain, Alfred Health, Melbourne, Victoria, Australia.,Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Victoria, Australia.,Department of Medicine, Austin Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Charles B Malpas
- Melbourne School of Psychological Sciences, The University of Melbourne, Parkville, Victoria, Australia.,Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria, Australia.,Alfred Brain, Alfred Health, Melbourne, Victoria, Australia.,Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Victoria, Australia
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Hussien Mohamed Ahmed KA, Elnaiem W, Abdalla YA, Hamza SB, Ibrahim M, Abdallah AM, Hajhamed M, Elfatih G, Fakhreldeen A, Hassan T, Faisal R, Salih RA, Mahmoud MA, Ahmed M, Fadlallah Y, Alhusseini RT, Albasheer N, Shamsaldeen L, Mohammed L, Siddig A, Alamin Alkhalifamohamed HM, Salih EH, Hussien A, Fadelallah Eljack MM. Prevalence and risk factors of functional seizures among adult Sudanese patients with epilepsy, a cross-sectional clinic-based study. Ann Med Surg (Lond) 2022; 82:104712. [PMID: 36268419 PMCID: PMC9577850 DOI: 10.1016/j.amsu.2022.104712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/10/2022] [Accepted: 09/11/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
| | - Walaa Elnaiem
- University of Khartoum, Faculty of Medicine, Khartoum, Sudan
| | | | | | - MuazA. Ibrahim
- University of Bahri, Faculty of Medicine, Teaching Assistant at Department of Internal Medicine, Khartoum North, Sudan
| | | | - Mawahib Hajhamed
- Ahfad University for Women, Faculty of Medicine, Khartoum, Sudan
| | - Ghassan Elfatih
- University of Khartoum, Faculty of Medicine, Omdurman, Sudan
| | | | - Tibyan Hassan
- Ahfad University for Women, Faculty of Medicine, Khartoum North, Sudan
| | - Roaa Faisal
- Ahfad University for Women, Faculty of Medicine, Khartoum, Sudan
| | - Rufaida A. Salih
- Ahfad University for Women, Faculty of Medicine, Omdurman, Sudan
| | - Mihad A. Mahmoud
- Ahfad University for Women, Faculty of Medicine, Khartoum, Sudan
| | - Mwaez Ahmed
- Ahfad University for Women, Faculty of Medicine, Omdurman, Sudan
| | - Yousif Fadlallah
- Omdurman Islamic University, Faculty of Medicine, Khartoum, Sudan
| | | | - Nijood Albasheer
- Ahfad University for Women, Faculty of Medicine, Khartoum, Sudan
| | - Lina Shamsaldeen
- Ahfad University for Women, Faculty of Medicine, Omdurman, Sudan
| | - Leenah Mohammed
- Alzaiem Alazhari University, Faculty of Medicine, Khartoum, Sudan
| | - Amira Siddig
- Al Neelain University, Faculty of Medicine, Khartoum, Sudan
| | | | | | | | - Mohammed Mahmmoud Fadelallah Eljack
- Community Department, University of Bakht Alruda, Ad Duwaym, Sudan
- Corresponding author. Community Department, University of Bakht Alruda, Ad Duwaym, Sudan.
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11
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Sharma AA, Szaflarski JP. Neuroinflammation as a pathophysiological factor in the development and maintenance of functional seizures: A hypothesis. Epilepsy Behav Rep 2021; 16:100496. [PMID: 34917920 PMCID: PMC8645839 DOI: 10.1016/j.ebr.2021.100496] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/15/2021] [Accepted: 10/21/2021] [Indexed: 12/29/2022] Open
Abstract
Early-life stress may be a priming neuroinflammatory factor for later development of FS. Secondary trauma has emerged as an important predisposing factor for FS initiation. We propose an explanatory, two-hit hypothesis for FS development. The proposed hypothesis is based on findings from neuroimaging and biomarker studies.
The neurobiological underpinnings of functional seizure (FS) development and maintenance represent an active research area. Recent work has focused on hardware (brain structure) and software (brain function and connectivity). However, understanding whether FS are an adaptive consequence of changes in brain structure, function, and/or connectivity is important for identifying a causative mechanism and for FS treatment and prevention. Further, investigation must also uncover what causes these structural and functional phenomena. Pioneering work in the field of psychoneuroimmunology has established a strong, consistent link between psychopathology, immune dysfunction, and brain structure/function. Based on this and recent FS biomarker findings, we propose a new etiologic model of FS pathophysiology. We hypothesize that early-life stressors cause neuroinflammatory and neuroendocrine changes that prime the brain for later FS development following secondary trauma (e.g., traumatic brain injury or psychological trauma). This framework coalesces existing knowledge regarding brain aberrations underlying FS and established neurobiological theories on the pathophysiology of underlying psychiatric disorders. We also propose brain temperature mapping as a way of indirectly visualizing neuroinflammation in patients with FS, particularly in emotion regulation, fear processing, and sensory-motor integration circuits. We offer a foundation on which future research can be built, with clear recommendations for future studies.
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Affiliation(s)
- Ayushe A Sharma
- Departments of Neurology, University of Alabama at Birmingham (UAB) Heersink School of Medicine, Birmingham, AL, USA.,UAB Epilepsy Center (UABEC), Birmingham, AL, USA
| | - Jerzy P Szaflarski
- Departments of Neurology, University of Alabama at Birmingham (UAB) Heersink School of Medicine, Birmingham, AL, USA.,Departments of Neurosurgery, and University of Alabama at Birmingham (UAB) Heersink School of Medicine, Birmingham, AL, USA.,Departments of Neurobiology, University of Alabama at Birmingham (UAB) Heersink School of Medicine, Birmingham, AL, USA.,UAB Epilepsy Center (UABEC), Birmingham, AL, USA
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12
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Psychogenic non-epileptic seizures (PNES) in the context of concurrent epilepsy – making the right diagnosis. ACTA EPILEPTOLOGICA 2021. [DOI: 10.1186/s42494-021-00057-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AbstractEpilepsy is a risk factor for the development of psychogenic non-epileptic seizures (PNES) and comorbid epilepsy is recognized as a comorbidity in about 10–30% of patients with PNES. The combination of epileptic and nonepileptic seizures poses a particular diagnostic challenge. In patients with epilepsy, additional PNES may be suspected on the basis of their typical semiology. The possibility of additional PNES should also be considered if seizures fail to respond to antiepileptic drug treatment, in patients with frequent emergency admissions with seizures and in those who develop new types of seizures. The description of semiological details by patients and witnesses can suggest additional PNES. Home video recordings can support an initial diagnosis, however, especially in patients with mixed seizure disorders it is advisable to seek further diagnostic confirmation by capturing all habitual seizure types with video-EEG. The clinical features of PNES associated with epilepsy are similar to those in isolated PNES disorders and include longer duration, fluctuating course, asynchronous movements, pelvic thrusting, side-to-side head or body movement, persistently closed eyes and mouth, ictal crying, recall of ictal experiences and absence of postictal confusion. PNES can also present as syncope-like episodes with unresponsiveness and reduced muscle tone. There is no unique epileptological or brain pathology profile putting patients with epilepsy at risk of additional PNES. However, patients with epilepsy and PNES typically have lower educational achievements and higher levels of psychiatric comorbidities than patients with epilepsy alone. Psychological trauma, including sexual abuse, appears to be a less relevant aetiological factor in patients with mixed seizure disorders than those with isolated PNES, and the gender imbalance (i.e. the greater prevalence in women) is less marked in patients with PNES and additional epilepsy than those with PNES alone. PNES sometimes develop after epilepsy surgery. A diagnosis of ‘known epilepsy’ should never be accepted without (at least brief) critical review. This narrative review summarises clinical, electrophysiological and historical features that can help identify patients with epilepsy and additional PNES.
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13
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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: 1.0] [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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14
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Damián A, Legnani M, Rada D, Braga P, Scaramelli A, Ferrando R. SPECT activation patterns in psychogenic non-epileptic seizures in temporal lobe epilepsy patients. Seizure 2021; 90:110-116. [DOI: 10.1016/j.seizure.2021.02.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/23/2021] [Accepted: 02/26/2021] [Indexed: 10/22/2022] Open
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15
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Diagnostic accuracy of clinical signs and symptoms for psychogenic nonepileptic attacks versus epileptic seizures: A systematic review and meta-analysis. Epilepsy Behav 2021; 121:108030. [PMID: 34029996 DOI: 10.1016/j.yebeh.2021.108030] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/21/2021] [Accepted: 04/24/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND Psychogenic nonepileptic attacks (PNEA) are events of altered behavior that resemble epileptic seizures (ES) but are not caused by abnormal electrical cortical activity. Understanding which clinical signs and symptoms are associated with PNEA may allow better triaging for video-electroencephalogram monitoring (VEM) and for a more accurate prediction when such testing is unavailable. METHODS We performed a systematic review searching Medline, Embase, and Cochrane Central from inception to March 29, 2019. We included original research that reported at least one clinical sign or symptom, included distinct groups of adult ES and PNEA with no overlap, and used VEM for the reference standard. Two authors independently assessed quality of the studies using the Quality Assessment of Diagnostic Accuracy Studies tool. Pooled estimates of sensitivity and specificity of studies were evaluated using a bivariate random effects model. RESULTS We identified 4028 articles, of which 33 were included. There was a female sex predominance in the PNEA population (n = 22). From our meta-analysis, pooled sensitivities (0.27-0.72) and specificities (0.51-0.89) for PNEA were modest for individual signs. History of sexual abuse had the highest pooled specificity (89%), while the most sensitive feature was female sex (72%). Individual studies (n = 4) reported high levels of accuracy for ictal eye closure (sensitivity 64-73.7% and specificity 76.9-100%) and post-traumatic stress disorder (no reported sensitivity or specificity). Assuming the pre-test probability for PNEA in a tertiary care epilepsy center is 14%, even the strongest meta-analyzed features only exert modest diagnostic value, increasing post-test probabilities to a maximum of 33%. CONCLUSIONS This review reflects the limited certainty afforded by individual clinical features to distinguish between PNEA and ES. Specific demographic and comorbid features, even despite moderately high specificities, impart minimal impact on diagnostic decision making. This emphasizes the need for the development of multisource predictive tools to optimize diagnostic likelihood ratios.
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16
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Anis S, Fahoum F, Korczyn AD, Sverdlov D, Abramovici S, Mina Y, Neufeld MY, Kipervasser S. Atypical duration of epileptic and psychogenic nonepileptic events. Epilepsy Behav 2020; 111:107145. [PMID: 32693371 DOI: 10.1016/j.yebeh.2020.107145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/20/2020] [Accepted: 04/24/2020] [Indexed: 12/01/2022]
Abstract
OBJECTIVES We aimed to estimate the frequency of epileptic seizures (ES) and psychogenic nonepileptic seizures (PNES) with atypical duration in our epilepsy monitoring unit (EMU), in order to raise awareness of atypical durations of both types of events. MATERIALS & METHODS We retrospectively reviewed all consecutive video-electroencephalogram (vEEG) recordings in our medical center's EMU from January 2013 to December 2017 and identified patients with seizures with atypical duration. Short PNES were defined as those lasting fewer than 2 min and long ES as those lasting for more than 5 min. RESULTS The files of 830 adult (age >16 years) patients were reviewed, of whom 26 patients (3.1%, mean age: 33.3 ± 9.8 years, 12 females) were diagnosed as having an unusual seizure duration. Among 432 patients with ES during monitoring, fourteen patients [3.2% (95% confidence interval (CI): 1.5%-5.0%), mean age: 33.0 ± 12.2, 5 females [had long ES durations (exceeding 5 min). In 64% of patients with long ES, the events were provoked by antiepileptic drug (AED) withdrawal during vEEG, 62% had focal lesion on brain imaging, and 64% had a frontotemporal or a temporal seizure focus. Among 223 patients diagnosed with PNES, 12 patients [5.4% (95% CI: 2.2%-8.6%), mean age: 33.6 ± 6.6, 7 females] had short PNES durations (less than 2 min) and demonstrated motor (9/12, 75%), altered responsiveness (6/12, 50%), and vocalization (5/12, 42%) as the most prominent clinical features. CONCLUSIONS The data from our case files highlight two main considerations in the diagnosis of paroxysmal events: prolonged event can be due to ES, while short events can be psychogenic.
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Affiliation(s)
- Saar Anis
- EEG and Epilepsy Unit, Department of Neurology, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.
| | - Firas Fahoum
- EEG and Epilepsy Unit, Department of Neurology, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Amos D Korczyn
- Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Diana Sverdlov
- Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Sergiu Abramovici
- EEG and Epilepsy Unit, Department of Neurology, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Yair Mina
- EEG and Epilepsy Unit, Department of Neurology, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Miri Y Neufeld
- EEG and Epilepsy Unit, Department of Neurology, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Svetlana Kipervasser
- EEG and Epilepsy Unit, Department of Neurology, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
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Kutlubaev MA, Mendelevich VD, Dyukova GM, Belousova ED. [The problem of comorbidity of epilepsy and psychogenic paroxysms]. Zh Nevrol Psikhiatr Im S S Korsakova 2020; 120:138-145. [PMID: 32621480 DOI: 10.17116/jnevro2020120051138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A review of publications over the last two decades is presented. Psychogenic paroxysms develop in approximately 12% of patients with epilepsy. The analysis of social and demographic data, history details, semiological features and results of electrophysiological and neuroimaging studies does not unequivocally support the comorbidity of epilepsy and psychogenic paroxysms. The pathogenetic mechanisms of the development of comorbidity are various and depend on the presence of pharmacoresistance, psychological traumas in the past, intellectual disability etc. Video-EEG-monitoring is the gold standard in the diagnosis of comorbidity of epilepsy and psychogenic paroxysms. Treatment of such cases includes anticonvulsants and cognitive-behavioral therapy.
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Affiliation(s)
- M A Kutlubaev
- Kuvatov,Republican Clinical Hospital, Ufa, Russia.,Bashkir State Medical University, Ufa, Russia
| | | | - G M Dyukova
- Loginov Moscow Clinical Research Practical Center, Moscow, Russia
| | - E D Belousova
- Research Clinical Institute of Pediatric of Pirogov Russian National Research Medical University, Moscow, Russia
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18
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Giussani G, Erba G, Bianchi E, Beghi E. Self-Report questionnaires for the diagnosis of psychogenic non-epileptic seizures in clinical practice. A comprehensive review of the available instruments. Seizure 2020; 79:30-43. [DOI: 10.1016/j.seizure.2020.04.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/30/2020] [Accepted: 04/16/2020] [Indexed: 02/06/2023] Open
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Yon MI, Azman F, Tezer FI, Saygi S. The coexistence of psychogenic nonepileptic and epileptic seizures in the same patient is more frequent than expected: Is there any clinical feature for defining these patients? Epilepsy Behav 2020; 105:106940. [PMID: 32092456 DOI: 10.1016/j.yebeh.2020.106940] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 01/21/2020] [Indexed: 02/03/2023]
Abstract
OBJECTIVES This study aimed to investigate the prevalence of psychogenic nonepileptic seizures (PNES) and PNES-epilepsy coexistence within all video-electroencephalography (EEG) monitoring unit (VEMU) referrals and to identify semiological and electrophysiological features to differentiate patients with PNES-epilepsy coexistence from PNES-only. METHODS We retrospectively reviewed medical files, VEMU reports, and videos of 1983 adult patients. Demographical, historical, clinical, neuroimaging, and electrophysiological parameters of all patients were recorded. We classified patients into five groups as definite PNES-only, definite PNES-epilepsy coexistence, definite PNES-probable epilepsy coexistence, probable PNES-definite epilepsy coexistence, and probable PNES-only. We defined a "definite" group when we saw the ictal EEG and/or video recording of the seizure. The "probable" term is used when there is strong evidence from the history of a particular seizure type and suggestive interictal EEGs without video recordings. RESULTS Two hundred and three of 1983 patients (10.23%) had PNES. Sixty-six of patients with PNES (32.51%) had definite PNES-epilepsy coexistence. When probable cases were included, the PNES-epilepsy coexistence ratio was 53.69% within all patients with PNES. The prevalence of PNES-epilepsy coexistence was 3.32% within all our VEMU referrals. Lower high school graduation rate, earlier age of disease onset, history of status epilepticus, febrile convulsion and brain surgery, use of three or more antiepileptic drugs, and abnormal magnetic resonance imaging (MRI) findings supported PNES-epilepsy coexistence (p < 0.05). On the contrary, seizure duration longer than 10 min was in favor of PNES-only (p < 0.05). CONCLUSIONS The prevalence of PNES-epilepsy coexistence might be more frequent in VEMUs than expected. Some demographic and semiological features and electrophysiological findings might be useful in differentiating patients with PNES-epilepsy coexistence from patients with PNES-only.
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Affiliation(s)
- Mehmet Ilker Yon
- Hacettepe University, School of Medicine, Department of Neurology, Ankara, Turkey.
| | - Filiz Azman
- Hacettepe University, School of Medicine, Department of Neurology, Ankara, Turkey
| | - F Irsel Tezer
- Hacettepe University, School of Medicine, Department of Neurology, Ankara, Turkey
| | - Serap Saygi
- Hacettepe University, School of Medicine, Department of Neurology, Ankara, Turkey
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Hamed SA, Attiah FA, Fawzy M. Psychogenic nonepileptic seizures in adults with epilepsy: a tertiary hospital-based study. Int J Neurosci 2019; 130:522-532. [PMID: 31771384 DOI: 10.1080/00207454.2019.1698566] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sherifa Ahmed Hamed
- Department of Neurology and Psychiatry, Assiut University Hospital, Assiut, Egypt
| | - Fadia Ahmed Attiah
- Department of Neurology and Psychiatry, Assiut University Hospital, Assiut, Egypt
| | - Mohamad Fawzy
- Department of Neurology and Psychiatry, Assiut University Hospital, Assiut, Egypt
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