Seizure outcome-related factors in autoimmune encephalitis: A systematic review and meta-analysis

BackgroundIdentifying the predictors for seizure outcome in autoimmune encephalitis (AE) and investigating how to prevent persistent seizures would have major clinical benefits effectively. Thus, we aimed to perform a systematic review and meta-analysis to examine seizure outcome-related factors in...

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Main Authors: Peijuan Luo, Rui Zhong, Qingling Chen, Weihong Lin
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-11-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2022.991043/full
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author Peijuan Luo
Rui Zhong
Qingling Chen
Weihong Lin
author_facet Peijuan Luo
Rui Zhong
Qingling Chen
Weihong Lin
author_sort Peijuan Luo
collection DOAJ
description BackgroundIdentifying the predictors for seizure outcome in autoimmune encephalitis (AE) and investigating how to prevent persistent seizures would have major clinical benefits effectively. Thus, we aimed to perform a systematic review and meta-analysis to examine seizure outcome-related factors in AE patients.MethodsPubMed and EMBASE were systematically searched from inception to 10 June 2022 for studies investigating seizure outcome-related factors in AE. The pooled effect estimates, including standardized mean differences (SMDs) and odds ratios (ORs) with 95% confidence intervals (CIs), were calculated to estimate the effect of each included factor on the seizure outcome.ResultsA total of 10 studies were included in the meta-analysis. Our pooled results of this meta-analysis showed that five factors were found to increase the risk of persistent seizures in AE patients, including onset with seizures (OR = 2.106, 95% CI = 1.262–3.514, p = 0.004), status epilepticus (OR = 3.017, 95% CI = 1.995–4.563, p < 0.001), EEG abnormalities (OR = 1.581, 95% CI = 1.016–2.46, p = 0.042), MRI abnormalities (OR = 1.554, 95% CI = 1.044–2.283, p = 0.03), and longer time from clinical onset to immunotherapy (SMD = 1.887, 95% CI = 0.598–3.156, p = 0.004).ConclusionOur meta-analysis indicated that onset with seizures, status epilepticus, EEG abnormalities, MRI abnormalities, and longer time from clinical onset to immunotherapy were risk factors for persistent seizures in AE patients.
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spelling doaj.art-23193c8b40684dedad854db580ece0a42022-12-22T03:57:23ZengFrontiers Media S.A.Frontiers in Neurology1664-22952022-11-011310.3389/fneur.2022.991043991043Seizure outcome-related factors in autoimmune encephalitis: A systematic review and meta-analysisPeijuan Luo0Rui Zhong1Qingling Chen2Weihong Lin3Department of Neurology, The First Hospital of Jilin University, Changchun, ChinaDepartment of Neurology, The First Hospital of Jilin University, Changchun, ChinaDepartment of Hepatology, Second People's Clinical College of Tianjin Medical University, Tianjin, ChinaDepartment of Neurology, The First Hospital of Jilin University, Changchun, ChinaBackgroundIdentifying the predictors for seizure outcome in autoimmune encephalitis (AE) and investigating how to prevent persistent seizures would have major clinical benefits effectively. Thus, we aimed to perform a systematic review and meta-analysis to examine seizure outcome-related factors in AE patients.MethodsPubMed and EMBASE were systematically searched from inception to 10 June 2022 for studies investigating seizure outcome-related factors in AE. The pooled effect estimates, including standardized mean differences (SMDs) and odds ratios (ORs) with 95% confidence intervals (CIs), were calculated to estimate the effect of each included factor on the seizure outcome.ResultsA total of 10 studies were included in the meta-analysis. Our pooled results of this meta-analysis showed that five factors were found to increase the risk of persistent seizures in AE patients, including onset with seizures (OR = 2.106, 95% CI = 1.262–3.514, p = 0.004), status epilepticus (OR = 3.017, 95% CI = 1.995–4.563, p < 0.001), EEG abnormalities (OR = 1.581, 95% CI = 1.016–2.46, p = 0.042), MRI abnormalities (OR = 1.554, 95% CI = 1.044–2.283, p = 0.03), and longer time from clinical onset to immunotherapy (SMD = 1.887, 95% CI = 0.598–3.156, p = 0.004).ConclusionOur meta-analysis indicated that onset with seizures, status epilepticus, EEG abnormalities, MRI abnormalities, and longer time from clinical onset to immunotherapy were risk factors for persistent seizures in AE patients.https://www.frontiersin.org/articles/10.3389/fneur.2022.991043/fullautoimmune encephalitisseizure outcomepersistent seizuresrisk factorsmeta-analysis
spellingShingle Peijuan Luo
Rui Zhong
Qingling Chen
Weihong Lin
Seizure outcome-related factors in autoimmune encephalitis: A systematic review and meta-analysis
Frontiers in Neurology
autoimmune encephalitis
seizure outcome
persistent seizures
risk factors
meta-analysis
title Seizure outcome-related factors in autoimmune encephalitis: A systematic review and meta-analysis
title_full Seizure outcome-related factors in autoimmune encephalitis: A systematic review and meta-analysis
title_fullStr Seizure outcome-related factors in autoimmune encephalitis: A systematic review and meta-analysis
title_full_unstemmed Seizure outcome-related factors in autoimmune encephalitis: A systematic review and meta-analysis
title_short Seizure outcome-related factors in autoimmune encephalitis: A systematic review and meta-analysis
title_sort seizure outcome related factors in autoimmune encephalitis a systematic review and meta analysis
topic autoimmune encephalitis
seizure outcome
persistent seizures
risk factors
meta-analysis
url https://www.frontiersin.org/articles/10.3389/fneur.2022.991043/full
work_keys_str_mv AT peijuanluo seizureoutcomerelatedfactorsinautoimmuneencephalitisasystematicreviewandmetaanalysis
AT ruizhong seizureoutcomerelatedfactorsinautoimmuneencephalitisasystematicreviewandmetaanalysis
AT qinglingchen seizureoutcomerelatedfactorsinautoimmuneencephalitisasystematicreviewandmetaanalysis
AT weihonglin seizureoutcomerelatedfactorsinautoimmuneencephalitisasystematicreviewandmetaanalysis