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Fortunato F, Giugno A, Sammarra I, Labate A, Gambardella A. Epilepsy, Immunity and Neuropsychiatric Disorders. Curr Neuropharmacol 2023; 21:1714-1735. [PMID: 35794773 PMCID: PMC10514543 DOI: 10.2174/1570159x20666220706094651] [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: 04/13/2022] [Revised: 05/03/2022] [Accepted: 06/13/2022] [Indexed: 11/22/2022] Open
Abstract
Several studies have focused on the emerging role of immunity and inflammation in a wide range of neurological disorders. Autoimmune diseases involving central nervous system share well defined clinical features including epileptic seizures and additional neuropsychiatric symptoms, like cognitive and psychiatric disturbances. The growing evidence about the role of immunity in the pathophysiologic mechanisms underlying these conditions lead to the concept of autoimmune epilepsy. This relatively-new term has been introduced to highlight the etiological and prognostic implications of immunity in epileptogenesis. In this review, we aim to discuss the role of autoimmunity in epileptogenesis and its clinical, neurophysiological, neuroimaging and therapeutic implications. Moreover, we wish to address the close relationship between immunity and additional symptoms, particularly cognitive and psychiatric features, which deeply impact clinical outcomes in these patients. To assess these aspects, we first analyzed Rasmussen's encephalitis. Subsequently, we have covered autoimmune encephalitis, particularly those associated with autoantibodies against surface neuronal antigens, as these autoantibodies express a direct immune-mediated mechanism, different from those against intracellular antigens. Then, we discussed the connection between systemic immune disorders and neurological manifestations. This review aims to highlight the need to expand knowledge about the role of inflammation and autoimmunity in the pathophysiology of neurological disorders and the importance to early recognize these clinical entities. Indeed, early identification may result in faster recovery and a better prognosis.
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Affiliation(s)
- Francesco Fortunato
- Department of Medical and Surgical Sciences, Institute of Neurology, Magna Graecia University, Catanzaro, Italy
| | - Alessia Giugno
- Department of Medical and Surgical Sciences, Institute of Neurology, Magna Graecia University, Catanzaro, Italy
| | - Ilaria Sammarra
- Department of Medical and Surgical Sciences, Institute of Neurology, Magna Graecia University, Catanzaro, Italy
| | - Angelo Labate
- BIOMORF Department, Neurology Unit, University of Messina, Messina, Italy
| | - Antonio Gambardella
- Department of Medical and Surgical Sciences, Institute of Neurology, Magna Graecia University, Catanzaro, Italy
- Institute of Molecular Bioimaging and Physiology, National Research Council, I-88100 Catanzaro, Italy
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2
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Mrak D, Bonelli M, Radner H. Neuropsychiatric Systemic Lupus Erythematosus: a remaining challenge. Curr Pharm Des 2022; 28:881-891. [PMID: 35549864 DOI: 10.2174/1381612828666220512102824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 04/13/2022] [Indexed: 11/22/2022]
Abstract
Systemic Lupus Erythematosus (SLE) is an autoimmune disease, which affects a wide range of organs with variable clinical features. Involvement of the nervous system is a challenging and multifaceted manifestation of the disease, presenting with a broad range of symptoms. Neuropsychiatric lupus (NPSLE) encompasses seven syndromes of the peripheral and 12 of the central nervous system, associated with a high disease burden. Despite advances in the management of SLE, NP manifestations still pose a challenge to clinicians. First, diagnosis and attribution to SLE is difficult due to the lack of specific biomarkers or imaging modalities. Second, therapeutic options are limited, and evidence is mainly based on case reports and expert consensus, as clinical trials are sparse. Moreover, no validated outcome measure on disease activity exists. Current recommendations for treatment include supportive as well as immunosuppressive medication, depending on the type and severity of manifestations. As NPSLE manifestations are increasingly recognized, a broader spectrum of therapeutic options can be expected.
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Affiliation(s)
- Daniel Mrak
- Medical University of Vienna, Vienna, Austria
| | - Michael Bonelli
- Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Helga Radner
- Division of Rheumatology, Medical University of Vienna, Vienna, Austria
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3
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Galetta K, Bhattacharyya S. Acute Neurologic Manifestations of Systemic Immune-Mediated Diseases. Semin Neurol 2021; 41:541-553. [PMID: 34619780 DOI: 10.1055/s-0041-1733790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Systemic autoimmune diseases can affect the peripheral and central nervous system. In this review, we outline the common inpatient consultations for patients with neurological symptoms from rheumatoid arthritis, Sjogren's syndrome, systemic lupus erythematosus, sarcoidosis, immunoglobulin G4-related disease, Behçet's disease, giant cell arteritis, granulomatosis with polyangiitis, microscopic polyangiitis, eosinophilic granulomatosis, polyarteritis nodosa, and ankylosing spondylitis. We discuss the symptoms, diagnostic strategies, and treatment options.
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Affiliation(s)
- Kristin Galetta
- Division of Hospital Neurology, Department of Neurology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Shamik Bhattacharyya
- Division of Hospital Neurology, Department of Neurology, Brigham and Women's Hospital, Boston, Massachusetts
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4
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Steriade C, Titulaer MJ, Vezzani A, Sander JW, Thijs RD. The association between systemic autoimmune disorders and epilepsy and its clinical implications. Brain 2021; 144:372-390. [PMID: 33221878 DOI: 10.1093/brain/awaa362] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 08/03/2020] [Accepted: 08/13/2020] [Indexed: 12/12/2022] Open
Abstract
Systemic autoimmune disorders occur more frequently in patients with epilepsy than in the general population, suggesting shared disease mechanisms. The risk of epilepsy is elevated across the spectrum of systemic autoimmune disorders but is highest in systemic lupus erythematosus and type 1 diabetes mellitus. Vascular and metabolic factors are the most important mediators between systemic autoimmune disorders and epilepsy. Systemic immune dysfunction can also affect neuronal excitability, not only through innate immune activation and blood-brain barrier dysfunction in most epilepsies but also adaptive immunity in autoimmune encephalitis. The presence of systemic autoimmune disorders in subjects with acute seizures warrants evaluation for infectious, vascular, toxic and metabolic causes of acute symptomatic seizures, but clinical signs of autoimmune encephalitis should not be missed. Immunosuppressive medications may have antiseizure properties and trigger certain drug interactions with antiseizure treatments. A better understanding of mechanisms underlying the co-existence of epilepsy and systemic autoimmune disorders is needed to guide new antiseizure and anti-epileptogenic treatments. This review aims to summarize the epidemiological evidence for systemic autoimmune disorders as comorbidities of epilepsy, explore potential immune and non-immune mechanisms, and provide practical implications on diagnostic and therapeutic approach to epilepsy in those with comorbid systemic autoimmune disorders.
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Affiliation(s)
- Claude Steriade
- Department of Neurology, New York University School of Medicine, New York, NY, USA
| | - Maarten J Titulaer
- Department of Neurology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Annamaria Vezzani
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Josemir W Sander
- NIHR University College London Hospitals Biomedical Research Centre, UCL Queen Square Institute of Neurology, London WC1N 3BG, UK.,Chalfont Centre for Epilepsy, Chalfont St Peter SL9 0RJ, Bucks, UK.,Stichting Epilepsie Instellingen Nederland - (SEIN), Heemstede, The Netherlands
| | - Roland D Thijs
- NIHR University College London Hospitals Biomedical Research Centre, UCL Queen Square Institute of Neurology, London WC1N 3BG, UK.,Stichting Epilepsie Instellingen Nederland - (SEIN), Heemstede, The Netherlands.,Department of Neurology, Leiden University Medical Centre, Leiden, The Netherlands
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5
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Rodriguez-Hernandez A, Ortiz-Orendain J, Alvarez-Palazuelos LE, Gonzalez-Lopez L, Gamez-Nava JI, Zavala-Cerna MG. Seizures in systemic lupus erythematosus: A scoping review. Seizure 2021; 86:161-167. [PMID: 33626435 DOI: 10.1016/j.seizure.2021.02.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 01/01/2023] Open
Abstract
Systemic lupus erythematosus is a systemic autoimmune disease that affects the central nervous system, either by direct neuronal damage, injury to brain vessels, or by pathogenic mechanisms indirectly induced by immune mechanisms related to the production and deposition of immune complexes. The prevalence of explicit episodes of seizures among SLE patients, varies from 2 to 8%. In some cases, patients with positivity for antiphospholipid or anti-β2 glycoprotein antibodies are found to be more prone to exhibit seizures compared to seronegative patients, other subjects at risk are carries of gene abnormalities codifying for ion channels. The exclusion of vasculitis or thrombosis is required for accurate treatment, imaging studies and alternative sequences are mandatory in patients with known SLE who present with a seizure. Several statements regarding SLE-related seizure remain to be decoded. In this scoping review we analyzed published information about prevalence, pathogenesis, clinical characteristics, diagnostic and therapeutic SLE patients that manifest a seizure, our objective is to provide with useful information for prompt diagnosis and individualized treatment.
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Affiliation(s)
| | | | - Lucia E Alvarez-Palazuelos
- Facultad de Medicina, Universidad Autónoma de Guadalajara, Guadalajara, Jalisco, Mexico; Doctorado en Ciencias Biomédicas Neurociencias, Universidad de Guadalajara, Mexico.
| | - Laura Gonzalez-Lopez
- Programa de Doctorado en Salud Publica y Doctorado en Farmacologia, Centro Universitario de Ciencias de la Salud universidad de Guadalajara, 44340 Guadalajara, JAL, Mexico.
| | - Jorge Ivan Gamez-Nava
- Programa de Doctorado en Salud Publica y Doctorado en Farmacologia, Centro Universitario de Ciencias de la Salud universidad de Guadalajara, 44340 Guadalajara, JAL, Mexico.
| | - Maria G Zavala-Cerna
- Immunology Research Laboratory, International Program of Medicine, Universidad Autonoma de Guadalajara, Zapopan, JAL, Mexico.
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de Amorim JC, Frittoli RB, Pereira D, Postal M, Dertkigil SSJ, Reis F, Costallat LTL, Appenzeller S. Epidemiology, characterization, and diagnosis of neuropsychiatric events in systemic lupus erythematosus. Expert Rev Clin Immunol 2019; 15:407-416. [DOI: 10.1080/1744666x.2019.1564040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jaqueline Cristina de Amorim
- Graduate Program of Child and Adolescent Health, School of Medical Science, University of Campinas, Campinas, Brazil
- Laboratory of Autoimmune Diseases, School of Medical Science, University of Campinas, Campinas, Brazil
| | - Renan Bazuco Frittoli
- Laboratory of Autoimmune Diseases, School of Medical Science, University of Campinas, Campinas, Brazil
- Graduate Program of Physiopathology, School of Medical Science, University of Campinas, Campinas, Brazil
| | - Danilo Pereira
- Laboratory of Autoimmune Diseases, School of Medical Science, University of Campinas, Campinas, Brazil
- Graduate Program of Physiopathology, School of Medical Science, University of Campinas, Campinas, Brazil
| | - Mariana Postal
- Laboratory of Autoimmune Diseases, School of Medical Science, University of Campinas, Campinas, Brazil
| | | | - Fabiano Reis
- Departament of Radiology, School of Medical Science, University of Campinas, Campinas, Brazil
| | - Lilian TL Costallat
- Rheumatology Unit, Department of Medicine-School of Medical Science, University of Campinas, Campinas, Brazil
| | - Simone Appenzeller
- Laboratory of Autoimmune Diseases, School of Medical Science, University of Campinas, Campinas, Brazil
- Rheumatology Unit, Department of Medicine-School of Medical Science, University of Campinas, Campinas, Brazil
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7
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Watad A, Tiosano S, Bragazzi N, Brigo F, Comaneshter D, Cohen A, Amital H. Epilepsy among Systemic Lupus Erythematosus Patients: Insights from a Large Database Analysis. Neuroepidemiology 2017; 50:1-6. [DOI: 10.1159/000485136] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 11/11/2017] [Indexed: 12/15/2022] Open
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8
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Jafri K, Patterson SL, Lanata C. Central Nervous System Manifestations of Systemic Lupus Erythematosus. Rheum Dis Clin North Am 2017; 43:531-545. [DOI: 10.1016/j.rdc.2017.06.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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9
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Tay SH, Mak A. Diagnosing and attributing neuropsychiatric events to systemic lupus erythematosus: time to untie the Gordian knot? Rheumatology (Oxford) 2017; 56:i14-i23. [PMID: 27744358 DOI: 10.1093/rheumatology/kew338] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Indexed: 01/12/2023] Open
Abstract
Neurological and psychiatric syndromes, collectively referred to as NPSLE, occur frequently in SLE. The frequency of NPSLE varies from 21 to 95%; however, only 13-38% of neuropsychiatric (NP) events could be attributable to SLE in the NPSLE SLICC inception cohort. This variability in the frequency of NPSLE is attributable to the low specificity of the ACR case definitions for SLE-attributed NP syndromes, inclusion of minor NP events in the ACR nomenclature, difficulty in ascertainment of NP events and diverse experience of rheumatologists in the clinical assessment of NP events. Making the correct and early attribution of NP events to SLE is important to institute appropriate immunosuppressive treatment for favourable outcomes. Various attribution models using composite decision rules have been developed and used to ascribe NP events to SLE. This review will focus on the various clinical presentations, diagnostic work-up and attributions of the common NPSLE syndromes, including other NP events not included in the ACR nomenclature but which have come to attention in recent years.
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Affiliation(s)
- Sen Hee Tay
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore.,Division of Rheumatology, Department of Medicine, National University Hospital, National University Health System, Singapore
| | - Anselm Mak
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore.,Division of Rheumatology, Department of Medicine, National University Hospital, National University Health System, Singapore
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10
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Rosati A, Guerrini R, Cimaz R. Lupus, antiphospholipid syndrome and epilepsy: an update. Lupus 2016; 26:3-5. [DOI: 10.1177/0961203316666961] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 08/04/2016] [Indexed: 11/15/2022]
Affiliation(s)
- A Rosati
- Paediatric Neurology Unit, Meyer Children’s Hospital, University of Florence, Italy
| | - R Guerrini
- Paediatric Neurology Unit, Meyer Children’s Hospital, University of Florence, Italy
| | - R Cimaz
- Rheumatology Unit, Meyer Children’s Hospital, University of Florence, Italy
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11
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Lin Z, Si Q, Xiaoyi Z. Association between epilepsy and systemic autoimmune diseases: A meta-analysis. Seizure 2016; 41:160-6. [PMID: 27592469 DOI: 10.1016/j.seizure.2016.08.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 07/29/2016] [Accepted: 08/12/2016] [Indexed: 02/05/2023] Open
Abstract
PURPOSE To investigate the association between systemic autoimmune diseases (SAD) and epilepsy and to determine whether the strength of this association is increased in the young. METHODS A meta-analysis was done, analyzing the association between epilepsy and SAD using the available data in Medline and Embase through February 2016. We followed the recommendations of the PRISMA (preferred reporting items for systematic reviews and meta-analyses) statement and the MOOSE (meta-analysis of observational studies in epidemiology) guidelines. RESULTS A total of twenty-five studies met the inclusion criteria for this meta-analysis, which included 10,972 patients with epilepsy (PWE) and 2,618,637 patients with SAD. The PWE cohort was shown to have more than a 2.5-fold increased risk of SAD. The patients with SAD were also shown to have a more than 2.5-fold increased risk of epilepsy. The results indicated that patients <20 years of age had a 3-fold increased risk of SAD and epilepsy (OR=3.04 [95% CI 1.27-7.27], P=0.01; OR=3.15 [95% CI 1.92-5.15], P<0.01; respectively), and these risks were shown to be higher than patients >20 years of age. The PWE cohort had a 2.6-fold increased risk of celiac disease (OR=2.65 [95% CI 1.41-4.97], P<0.01). The patients with systemic lupus erythematosus had a 4.5-fold increased risk of epilepsy (OR=4.57 [95% CI 2.40-8.67], P<0.01). CONCLUSIONS There is an association between epilepsy and SAD, which was shown to be stronger at a young age.
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Affiliation(s)
- Zhang Lin
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
| | - Qi Si
- School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zou Xiaoyi
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, China.
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12
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Huang X, Magder LS, Petri M. Predictors of Incident Seizure in Systemic Lupus Erythematosus. J Rheumatol 2016; 43:565-75. [PMID: 26773115 DOI: 10.3899/jrheum.150135] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2015] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The risk factors for incident seizures in systemic lupus erythematosus (SLE) were prospectively determined in a cohort study. METHODS A total of 2203 patients with SLE followed longitudinally in the Hopkins Lupus Cohort were analyzed. Demographic variables, clinical manifestations, laboratory tests, and SLE disease activity were recorded at each quarterly visit. Adjusted estimates of association of risk factors for onset of seizure were derived using pooled logistic regression. We examined incident seizures in 3 ways: at the time of diagnosis, more than 45 days after the diagnosis of SLE, and after cohort entry. RESULTS Of 2203 patients with no history of seizure prior to SLE diagnosis, 157 (7.13%) had the first seizure occurrence at the time of (37 patients, 1.68%) or after diagnosis (120 patients, 5.45%) of SLE. The risk of seizure occurring around the time of SLE diagnosis was higher in patients with a history of malar rash (p = 0.002), proteinuria (p = 0.004), and psychosis (p < 0.001). Multivariable analysis of the first seizure occurring after the diagnosis of SLE showed that history of low C3 (p = 0.0078), psychosis (p < 0.0001), cranial or peripheral neuropathy (p = 0.0043), anti-Sm antibody (p = 0.0551), renal involvement (p = 0.0177), and current corticosteroid dose (p < 0.0001) were independently associated with a higher incidence of seizure. Disease activity was not predictive after adjusting for corticosteroids. CONCLUSION Risk of seizure after diagnosis of SLE is increased in those patients with prior psychosis, neuropathy, proteinuria, anti-Sm, low C3, and use of corticosteroids.
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Affiliation(s)
- XiangYang Huang
- From Sichuan University, West China School of Medicine, West China Hospital, Chengdu, Sichuan, P.R. China; Department of Rheumatology, University of Maryland School of Medicine; and Johns Hopkins University School of Medicine, Division of Rheumatology, Baltimore, Maryland, USA.X.Y. Huang, MD, PhD, Associate Professor, Sichuan University School of Medicine, West China Hospital; L.S. Magder, MPH, PhD, Professor of Epidemiology and Public Health, University of Maryland School of Medicine; M. Petri, MD, MPH, Professor of Medicine, Johns Hopkins University School of Medicine, Division of Rheumatology
| | - Laurence S Magder
- From Sichuan University, West China School of Medicine, West China Hospital, Chengdu, Sichuan, P.R. China; Department of Rheumatology, University of Maryland School of Medicine; and Johns Hopkins University School of Medicine, Division of Rheumatology, Baltimore, Maryland, USA.X.Y. Huang, MD, PhD, Associate Professor, Sichuan University School of Medicine, West China Hospital; L.S. Magder, MPH, PhD, Professor of Epidemiology and Public Health, University of Maryland School of Medicine; M. Petri, MD, MPH, Professor of Medicine, Johns Hopkins University School of Medicine, Division of Rheumatology
| | - Michelle Petri
- From Sichuan University, West China School of Medicine, West China Hospital, Chengdu, Sichuan, P.R. China; Department of Rheumatology, University of Maryland School of Medicine; and Johns Hopkins University School of Medicine, Division of Rheumatology, Baltimore, Maryland, USA.X.Y. Huang, MD, PhD, Associate Professor, Sichuan University School of Medicine, West China Hospital; L.S. Magder, MPH, PhD, Professor of Epidemiology and Public Health, University of Maryland School of Medicine; M. Petri, MD, MPH, Professor of Medicine, Johns Hopkins University School of Medicine, Division of Rheumatology.
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13
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van Vollenhoven RF, Mosca M, Bertsias G, Isenberg D, Kuhn A, Lerstrøm K, Aringer M, Bootsma H, Boumpas D, Bruce IN, Cervera R, Clarke A, Costedoat-Chalumeau N, Czirják L, Derksen R, Dörner T, Gordon C, Graninger W, Houssiau F, Inanc M, Jacobsen S, Jayne D, Jedryka-Goral A, Levitsky A, Levy R, Mariette X, Morand E, Navarra S, Neumann I, Rahman A, Rovenský J, Smolen J, Vasconcelos C, Voskuyl A, Voss A, Zakharova H, Zoma A, Schneider M. Treat-to-target in systemic lupus erythematosus: recommendations from an international task force. Ann Rheum Dis 2014; 73:958-67. [DOI: 10.1136/annrheumdis-2013-205139] [Citation(s) in RCA: 446] [Impact Index Per Article: 44.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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14
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Adelöw C, Andersson T, Ahlbom A, Tomson T. Unprovoked seizures in multiple sclerosis and systemic lupus erythematosus: a population-based case-control study. Epilepsy Res 2012; 101:284-7. [PMID: 22575230 DOI: 10.1016/j.eplepsyres.2012.04.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 04/04/2012] [Accepted: 04/07/2012] [Indexed: 01/13/2023]
Abstract
To study the risk of developing unprovoked seizures among patients with multiple sclerosis (MS) and systemic lupus erythematosus (SLE), we used 1885 new onset seizure cases, 15,080 controls and defined exposure as a hospital discharge diagnosis of MS or SLE. The odds ratio with 95% confidence interval was 3.7 (CI 1.2-11.0) for MS and 8.0 (2.2-30.0) for SLE, suggesting an increased risk of unprovoked seizures in patients with both these diagnoses.
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Affiliation(s)
- Cecilia Adelöw
- Department of Clinical Neurosciences, Karolinska Institutet, Stockholm, Sweden.
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15
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To What Extent Can Preventive Treatments Prevent Damage From Systemic Lupus Erythematosus? Curr Rheumatol Rep 2011; 13:317-23. [DOI: 10.1007/s11926-011-0188-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Manjunath R, Davis KL, Candrilli SD, Ettinger AB. Association of antiepileptic drug nonadherence with risk of seizures in adults with epilepsy. Epilepsy Behav 2009; 14:372-8. [PMID: 19126436 DOI: 10.1016/j.yebeh.2008.12.006] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2008] [Revised: 12/06/2008] [Accepted: 12/13/2008] [Indexed: 11/25/2022]
Abstract
This study evaluated the potential effect of antiepileptic drug (AED) nonadherence on the risk of subsequent seizure. Retrospective insurance claims from the United States were analyzed. Inclusion criteria were: age 21-64 years, diagnosis of epilepsy or nonfebrile convulsions, 2 AED prescriptions, and insurance enrollment for 6 months pre- and 60 days post-AED initiation. Seizure was defined as a hospital or emergency admission associated with epilepsy or nonfebrile convulsions. Observation began 7 days post-drug initiation, ending with the first of the following: seizure, insurance disenrollment, or 365 days post-drug initiation. Adherence was measured using the medication possession ratio (MPR), with MPR <0.8 defining nonadherence. Seizure risk was assessed using an extended Cox proportional hazards model. Of 18,073 subjects identified, 2467 (14%) had 1 seizure. Mean follow-up was 133 days among subjects with event and 305 days for patients without event. Seizure risk was 21% higher among nonadherers (hazard ratio=1.205, P=0.0002) than adherers.
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Affiliation(s)
- Ranjani Manjunath
- US Health Outcomes, Neurosciences, GlaxoSmithKline, Research Triangle Park, NC 27709, USA.
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