Combined malonic and methylmalonic acidemia (CMAMMA) is a rare genetic disorder caused by biallelic variants in the acyl-CoA synthetase family member 3 (ACSF3) gene (Witkowski et al., 2011) and is associated with elevated levels of malonic acid (MA) and methylmalonic acid (MMA) in urine (Sloan et al., 2011). CMAMMA is generally considered a benign disorder, with recent descriptions of potential neuropsychiatric symptoms in children (Levtova et al., 2019). We expand the phenotype by describing a case of severe developmental and epileptic encephalopathy with a CMAMMA-associated Lennox-Gastaut Syndrome (LGS) phenotype and comorbid neuropsychiatric abnormalities.
Methods and Results
An 8-year-old boy with CMAMMA, referred to our clinic’s neurogenetic center, presented with refractory epilepsy and severe neurobehavioral symptoms. His epilepsy consisted of tonic, atonic, and generalized tonic-clonic seizures with electroclinical features consistent with LGS. The patient had comorbid autism, aggression, and intellectual disability with a history of developmental regression. Genetic testing confirmed pathogenic biallelic ACSF3 variants, and urine organic acid testing showed elevated levels of MA and MMA in urine.
Conclusion
This case suggests that CMAMMA can lead to severe epilepsy and a neuropsychiatric phenotype, expanding the clinical spectrum of the disorder.
联合丙二酸和甲基丙二酸血症(CMAMMA)是一种罕见的遗传性疾病,由酰基辅酶a合成酶家族成员3 (ACSF3)基因的双等位基因变异引起(Witkowski等,2011),并与尿液中丙二酸(MA)和甲基丙二酸(MMA)水平升高有关(Sloan等,2011)。CMAMMA通常被认为是一种良性疾病,最近有关于儿童潜在神经精神症状的描述(Levtova et al., 2019)。我们通过描述一个伴有cmamma相关Lennox-Gastaut综合征(LGS)表型和共病神经精神异常的严重发育性和癫痫性脑病病例来扩展表型。方法与结果一名8岁CMAMMA男童,以难治性癫痫和严重的神经行为症状转诊至我院神经遗传中心。他的癫痫包括强直性、失张力性和全身性强直性阵挛性发作,其电临床特征与LGS一致。患者同时患有自闭症、攻击性和智力障碍,并有发育倒退史。基因检测证实致病性双等位基因ACSF3变异,尿液有机酸检测显示尿中MA和MMA水平升高。结论本病例提示CMAMMA可导致严重癫痫和神经精神表型,扩大了该疾病的临床谱。
{"title":"Biallelic ACSF3 variants with combined malonic and methylmalonic acidemia and associated developmental epileptic encephalopathy phenotype: A novel genotype-phenotype correlation","authors":"JuleLayne Curry , Emily Bonkowski , Heather Mefford , James Wheless , Nitish Chourasia","doi":"10.1016/j.seizure.2025.09.015","DOIUrl":"10.1016/j.seizure.2025.09.015","url":null,"abstract":"<div><h3>Purpose</h3><div>Combined malonic and methylmalonic acidemia (CMAMMA) is a rare genetic disorder caused by biallelic variants in the acyl-CoA synthetase family member 3 (<em>ACSF3</em>) gene (Witkowski et al., 2011) and is associated with elevated levels of malonic acid (MA) and methylmalonic acid (MMA) in urine (Sloan et al., 2011). CMAMMA is generally considered a benign disorder, with recent descriptions of potential neuropsychiatric symptoms in children (Levtova et al., 2019). We expand the phenotype by describing a case of severe developmental and epileptic encephalopathy with a CMAMMA-associated Lennox-Gastaut Syndrome (LGS) phenotype and comorbid neuropsychiatric abnormalities.</div></div><div><h3>Methods and Results</h3><div>An 8-year-old boy with CMAMMA, referred to our clinic’s neurogenetic center, presented with refractory epilepsy and severe neurobehavioral symptoms. His epilepsy consisted of tonic, atonic, and generalized tonic-clonic seizures with electroclinical features consistent with LGS. The patient had comorbid autism, aggression, and intellectual disability with a history of developmental regression. Genetic testing confirmed pathogenic biallelic <em>ACSF3</em> variants, and urine organic acid testing showed elevated levels of MA and MMA in urine.</div></div><div><h3>Conclusion</h3><div>This case suggests that CMAMMA can lead to severe epilepsy and a neuropsychiatric phenotype, expanding the clinical spectrum of the disorder.</div></div>","PeriodicalId":49552,"journal":{"name":"Seizure-European Journal of Epilepsy","volume":"133 ","pages":"Pages 16-19"},"PeriodicalIF":2.8,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145271022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-22DOI: 10.1016/j.seizure.2025.09.014
Nicholas Goh , Karthikeyan Saravanan , Mya Thee Char Tin Oo , Evan Michael NEO Ren Jie , Rahul Rathakrishnan , Mingxue Jing , Jennifer Hung , Ching-Hui Sia , Benjamin YQ Tan , Hui Shi Lim , Megan BJ Ng , Leonard LL Yeo , Joshua YP Yeo
Background
Post-stroke epilepsy (PSE) is a complication of stroke and accounts for a large proportion of seizures in the elderly population. Moreover, it is associated with heightened morbidity and mortality, poor functional outcomes and longer hospital stays. The effect of haemorrhagic transformation (HT) of ischaemic strokes on the incidence of PSE is not well-understood.
Objectives
Our aim is to investigate how the incidence of PSE is affected by the presence of HT in adult patients with ischaemic stroke.
Methods
PubMed, Embase and Scopus were searched from inception to 26th August 2025 for studies on PSE and HT. Inclusion criteria included primary observational studies (cohort studies, case-control studies), adults > 18 years old, ischaemic stroke, and PSE. The odds ratio of PSE incidence in patients with and without HT was evaluated using a random effects model. Our study was registered with PROSPERO (CRD42024610806).
Results
A total of 8 studies were included in our analysis, including 7 cohort studies and 1 case control study, comprising a total of 4273 patients. The pooled prevalence of PSE in this cohort was 0.075 (95 % CI = 0.057, 0.095). HT significantly increased the incidence of PSE in ischaemic stroke patients (OR = 2.95, 95 % CI = 1.93, 4.50, p < 0.005).
Conclusion
Understanding how HT affects PSE incidence can help objectively quantify the morbidity from this complication. Future studies may include this outcome to guide the judicious use of thrombolytic reperfusion therapy in ischaemic stroke.
背景:脑卒中后癫痫(PSE)是脑卒中的一种并发症,在老年人癫痫发作中占很大比例。此外,它还与较高的发病率和死亡率、较差的功能预后和较长的住院时间有关。缺血性卒中的出血性转化(HT)对PSE发病率的影响尚不清楚。目的:我们的目的是研究成年缺血性脑卒中患者中HT的存在对PSE发病率的影响。方法:检索PubMed、Embase和Scopus自成立至2025年8月26日关于PSE和HT的研究。纳入标准包括主要观察性研究(队列研究、病例对照研究)、18岁以下成人、缺血性卒中和PSE。采用随机效应模型评估HT患者和非HT患者PSE发生率的优势比。我们的研究已在PROSPERO注册(CRD42024610806)。结果:我们共纳入8项研究,包括7项队列研究和1项病例对照研究,共纳入4273例患者。该队列中PSE的总患病率为0.075 (95% CI = 0.057, 0.095)。HT显著增加缺血性脑卒中患者PSE的发生率(OR = 2.95, 95% CI = 1.93, 4.50, p < 0.005)。结论:了解HT对PSE发病率的影响有助于客观量化PSE并发症的发病率。未来的研究可能包括这一结果,以指导在缺血性脑卒中中明智地使用溶栓再灌注治疗。
{"title":"Association between haemorrhagic transformation in acute ischaemic strokes and incidence of post-stroke epilepsy: A systematic review and meta-analysis","authors":"Nicholas Goh , Karthikeyan Saravanan , Mya Thee Char Tin Oo , Evan Michael NEO Ren Jie , Rahul Rathakrishnan , Mingxue Jing , Jennifer Hung , Ching-Hui Sia , Benjamin YQ Tan , Hui Shi Lim , Megan BJ Ng , Leonard LL Yeo , Joshua YP Yeo","doi":"10.1016/j.seizure.2025.09.014","DOIUrl":"10.1016/j.seizure.2025.09.014","url":null,"abstract":"<div><h3>Background</h3><div>Post-stroke epilepsy (PSE) is a complication of stroke and accounts for a large proportion of seizures in the elderly population. Moreover, it is associated with heightened morbidity and mortality, poor functional outcomes and longer hospital stays. The effect of haemorrhagic transformation (HT) of ischaemic strokes on the incidence of PSE is not well-understood.</div></div><div><h3>Objectives</h3><div>Our aim is to investigate how the incidence of PSE is affected by the presence of HT in adult patients with ischaemic stroke.</div></div><div><h3>Methods</h3><div>PubMed, Embase and Scopus were searched from inception to 26th August 2025 for studies on PSE and HT. Inclusion criteria included primary observational studies (cohort studies, case-control studies), adults > 18 years old, ischaemic stroke, and PSE. The odds ratio of PSE incidence in patients with and without HT was evaluated using a random effects model. Our study was registered with PROSPERO (CRD42024610806).</div></div><div><h3>Results</h3><div>A total of 8 studies were included in our analysis, including 7 cohort studies and 1 case control study, comprising a total of 4273 patients. The pooled prevalence of PSE in this cohort was 0.075 (95 % CI = 0.057, 0.095). HT significantly increased the incidence of PSE in ischaemic stroke patients (OR = 2.95, 95 % CI = 1.93, 4.50, <em>p</em> < 0.005).</div></div><div><h3>Conclusion</h3><div>Understanding how HT affects PSE incidence can help objectively quantify the morbidity from this complication. Future studies may include this outcome to guide the judicious use of thrombolytic reperfusion therapy in ischaemic stroke.</div></div>","PeriodicalId":49552,"journal":{"name":"Seizure-European Journal of Epilepsy","volume":"133 ","pages":"Pages 96-105"},"PeriodicalIF":2.8,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145349554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-20DOI: 10.1016/j.seizure.2025.09.012
Jaan K Nandwani , Soonmyung A Hwang , Leah Blank , Benjamin R Kummer , Parul Agarwal
Purpose
We aimed to assess the prevalence of financial distress, defined as the negative effects of the economic burden of medical care on patients’ quality of life, in persons with epilepsy compared to those without epilepsy in a nationally representative sample of U.S. adults. We also aimed to identify associated factors of financial distress in persons with active epilepsy.
Methods
We pooled cross-sectional data from the 2021 and 2022 National Health Interview Survey. We divided individuals with epilepsy into active (medication use or seizure in the past year) and inactive cohorts. We analyzed measures of financial distress using survey responses from individuals who had self-reported epilepsy. Multivariable logistic regression was conducted to investigate the association between epilepsy status and financial distress, and to identify factors associated with financial distress measures among persons with epilepsy.
Results
In a multivariable logistic regression analysis, epilepsy status was not significantly associated with financial distress (OR=1.03, 95% CI: 0.87–1.22, p = 0.76). However, several factors were significantly associated with higher odds of financial distress among those with active epilepsy, including female sex (OR=1.38, 95% CI: 1.32–1.44), Hispanic ethnicity (OR=1.72, 95% CI 1.61–1.85), having a high school degree or less (OR=1.34, 95% CI: 1.26–1.41), one or more annual hospitalizations (OR=1.33, 95% CI: 1.27–1.40), and multiple comorbidities (OR=1.76, 95% CI: 1.60–1.93).
Conclusion
A substantial proportion of individuals with active epilepsy experience financial distress, underscoring the need for system-level policies to expand access and patient-level strategies to improve financial navigation and promote affordable therapies.
{"title":"Financial distress among individuals with epilepsy: Insights from a nationwide survey analysis","authors":"Jaan K Nandwani , Soonmyung A Hwang , Leah Blank , Benjamin R Kummer , Parul Agarwal","doi":"10.1016/j.seizure.2025.09.012","DOIUrl":"10.1016/j.seizure.2025.09.012","url":null,"abstract":"<div><h3>Purpose</h3><div>We aimed to assess the prevalence of financial distress, defined as the negative effects of the economic burden of medical care on patients’ quality of life, in persons with epilepsy compared to those without epilepsy in a nationally representative sample of U.S. adults. We also aimed to identify associated factors of financial distress in persons with active epilepsy.</div></div><div><h3>Methods</h3><div>We pooled cross-sectional data from the 2021 and 2022 National Health Interview Survey. We divided individuals with epilepsy into active (medication use or seizure in the past year) and inactive cohorts. We analyzed measures of financial distress using survey responses from individuals who had self-reported epilepsy. Multivariable logistic regression was conducted to investigate the association between epilepsy status and financial distress, and to identify factors associated with financial distress measures among persons with epilepsy.</div></div><div><h3>Results</h3><div>In a multivariable logistic regression analysis, epilepsy status was not significantly associated with financial distress (OR=1.03, 95% CI: 0.87–1.22, <em>p</em> = 0.76). However, several factors were significantly associated with higher odds of financial distress among those with active epilepsy, including female sex (OR=1.38, 95% CI: 1.32–1.44), Hispanic ethnicity (OR=1.72, 95% CI 1.61–1.85), having a high school degree or less (OR=1.34, 95% CI: 1.26–1.41), one or more annual hospitalizations (OR=1.33, 95% CI: 1.27–1.40), and multiple comorbidities (OR=1.76, 95% CI: 1.60–1.93).</div></div><div><h3>Conclusion</h3><div>A substantial proportion of individuals with active epilepsy experience financial distress, underscoring the need for system-level policies to expand access and patient-level strategies to improve financial navigation and promote affordable therapies.</div></div>","PeriodicalId":49552,"journal":{"name":"Seizure-European Journal of Epilepsy","volume":"133 ","pages":"Pages 29-36"},"PeriodicalIF":2.8,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145287513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hemimegalencephaly (HME) is characterized by severe seizures, cognitive impairment, and unilateral motor deficits. This study aimed to evaluate the clinical features, electroencephalogram (EEG) and neuroimaging findings along with treatment outcomes in pediatric epilepsy patients diagnosed with HME.
Methods
A retrospective review was conducted on 14 pediatric epilepsy patients with HME, encompassing clinical data, video-EEG findings, neuroradiological assessments and treatment outcome.
Results
The study revealed a predominance of left-sided HME (11/14) and syndromic presentations in three patients. The median age of seizure onset was within the first day of life (range: 0–225 days). The median follow-up duration was 30 months (3–72 months). All patients experienced daily seizures. At the time of evaluation, 11 patients were on three or more antiseizure medications. Adjunctive therapies included ketogenic diet in four patients, mTOR inhibitors in two patients, and a combination of both in one patient. Ictal recordings were obtained in 13 patients, with two patients exhibiting bilateral independent ictal onset. All but one patient demonstrated refractory seizures on follow-up. Six patients (42.8 %) underwent epilepsy surgery, resulting in seizure freedom in three cases (50 %) and a mild reduction in seizure frequency in one. Two patients experienced intraoperative hemorrhage, resulting in monthly seizures and postoperative mortality, each in one patient.
Conclusion
Hemimegalencephaly represents a challenging etiology in refractory epilepsy of early childhood. Given the limited efficacy of pharmacological modalities, epilepsy surgery seems to be the only effective treatment option for seizure control in these young patients, however, carries significant risks for mortality and morbidity.
{"title":"Clinical and radiological evaluation of children with hemimegalencephaly and epilepsy: A single-center study","authors":"Ceren Günbey , Kader Karlı Oğuz , Burçak Bilginer , Ülkühan Öztoprak , Fatma Ilgaz , Nejat Akalan , Meral Topçu , Güzide Turanlı , Dilek Yalnızoğlu","doi":"10.1016/j.seizure.2025.09.011","DOIUrl":"10.1016/j.seizure.2025.09.011","url":null,"abstract":"<div><h3>Purpose</h3><div>Hemimegalencephaly (HME) is characterized by severe seizures, cognitive impairment, and unilateral motor deficits. This study aimed to evaluate the clinical features, electroencephalogram (EEG) and neuroimaging findings along with treatment outcomes in pediatric epilepsy patients diagnosed with HME.</div></div><div><h3>Methods</h3><div>A retrospective review was conducted on 14 pediatric epilepsy patients with HME, encompassing clinical data, video-EEG findings, neuroradiological assessments and treatment outcome.</div></div><div><h3>Results</h3><div>The study revealed a predominance of left-sided HME (11/14) and syndromic presentations in three patients. The median age of seizure onset was within the first day of life (range: 0–225 days). The median follow-up duration was 30 months (3–72 months). All patients experienced daily seizures. At the time of evaluation, 11 patients were on three or more antiseizure medications. Adjunctive therapies included ketogenic diet in four patients, <em>mTOR</em> inhibitors in two patients, and a combination of both in one patient. Ictal recordings were obtained in 13 patients, with two patients exhibiting bilateral independent ictal onset. All but one patient demonstrated refractory seizures on follow-up. Six patients (42.8 %) underwent epilepsy surgery, resulting in seizure freedom in three cases (50 %) and a mild reduction in seizure frequency in one. Two patients experienced intraoperative hemorrhage, resulting in monthly seizures and postoperative mortality, each in one patient.</div></div><div><h3>Conclusion</h3><div>Hemimegalencephaly represents a challenging etiology in refractory epilepsy of early childhood. Given the limited efficacy of pharmacological modalities, epilepsy surgery seems to be the only effective treatment option for seizure control in these young patients, however, carries significant risks for mortality and morbidity.</div></div>","PeriodicalId":49552,"journal":{"name":"Seizure-European Journal of Epilepsy","volume":"132 ","pages":"Pages 186-191"},"PeriodicalIF":2.8,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145207770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-14DOI: 10.1016/j.seizure.2025.09.009
AD Marshall , A Askariah , S Yule , D Fyfe , R Hassett , J Todd , S MacBride-Stewart , SEF Nichol , L Stephen , D Mackay , CA Heath
Objective
The rate of maternal mortality and obstetric complications amongst women with epilepsy during pregnancy is higher than that of the general population. The reason for this remains unclear but poor access to epilepsy specialist in a timely manner, poor medication adherence and falling levels of ASM are often stated within the published literature. We aim to explore whether this assumption is correct and consider the influence that clinical and epidemiological factors have on outcomes.
Methods
Pregnant women with epilepsy were identified between January 2015 and June 2022 from the local obstetric register. Key clinical features were identified following a manual review of patient records. Demographic information, scheduled and unscheduled secondary care contact, maternity care and medication dispensing history were obtained from routinely collected health datasets. An adverse outcome was defined as a reported seizure or epilepsy-related hospital contact during pregnancy or within 12-weeks postpartum.
Results
We identified 458 pregnancies from 336 WWE. An adverse epilepsy related outcome was observed in 212/458 (46%) pregnancies. Review during the pre-booking period was noted in 189/458 (41.2%) cases and during pregnancy in 302/458 (65.9%). The most common ASM monotherapy was levetiracetam (LVT)(152/285 pregnancies, 53.3%) followed by lamotrigine (LTG) (110/285 pregnancies, 38.6%). Overall, exposure to polytherapy, LTG exposure, a seizure during the preconception period and low socioeconomic status were associated with an adverse outcome.
Conclusion
An epilepsy related admission or reported seizure was commonly experienced in WWE during pregnancy and in a small proportion of women this came after a period of seizure freedom. There is much work to be done to improve outcomes in women with epilepsy during pregnancy and the low rates of pre-conception care remain a concern. Routine preconception care would potentially allow complex issues such as ASM adherence, potential falling levels of ASM in pregnancy, driving and teratogenicity to be considered. Although seizure freedom is not possible for a significant proportion of women (both during the preconception period and pregnancy) early review in the preconception period and throughout pregnancy is likely to ensure epilepsy control is optimum and all potentially modifiable factors are considered.
{"title":"Delivery of care, anti-seizure medication adherence and factors affecting seizure outcomes in women with epilepsy during pregnancy: a retrospective cohort study","authors":"AD Marshall , A Askariah , S Yule , D Fyfe , R Hassett , J Todd , S MacBride-Stewart , SEF Nichol , L Stephen , D Mackay , CA Heath","doi":"10.1016/j.seizure.2025.09.009","DOIUrl":"10.1016/j.seizure.2025.09.009","url":null,"abstract":"<div><h3>Objective</h3><div>The rate of maternal mortality and obstetric complications amongst women with epilepsy during pregnancy is higher than that of the general population. The reason for this remains unclear but poor access to epilepsy specialist in a timely manner, poor medication adherence and falling levels of ASM are often stated within the published literature. We aim to explore whether this assumption is correct and consider the influence that clinical and epidemiological factors have on outcomes.</div></div><div><h3>Methods</h3><div>Pregnant women with epilepsy were identified between January 2015 and June 2022 from the local obstetric register. Key clinical features were identified following a manual review of patient records. Demographic information, scheduled and unscheduled secondary care contact, maternity care and medication dispensing history were obtained from routinely collected health datasets. An adverse outcome was defined as a reported seizure or epilepsy-related hospital contact during pregnancy or within 12-weeks postpartum.</div></div><div><h3>Results</h3><div>We identified 458 pregnancies from 336 WWE. An adverse epilepsy related outcome was observed in 212/458 (46%) pregnancies. Review during the pre-booking period was noted in 189/458 (41.2%) cases and during pregnancy in 302/458 (65.9%). The most common ASM monotherapy was levetiracetam (LVT)(152/285 pregnancies, 53.3%) followed by lamotrigine (LTG) (110/285 pregnancies, 38.6%). Overall, exposure to polytherapy, LTG exposure, a seizure during the preconception period and low socioeconomic status were associated with an adverse outcome.</div></div><div><h3>Conclusion</h3><div>An epilepsy related admission or reported seizure was commonly experienced in WWE during pregnancy and in a small proportion of women this came after a period of seizure freedom. There is much work to be done to improve outcomes in women with epilepsy during pregnancy and the low rates of pre-conception care remain a concern. Routine preconception care would potentially allow complex issues such as ASM adherence, potential falling levels of ASM in pregnancy, driving and teratogenicity to be considered. Although seizure freedom is not possible for a significant proportion of women (both during the preconception period and pregnancy) early review in the preconception period and throughout pregnancy is likely to ensure epilepsy control is optimum and all potentially modifiable factors are considered.</div></div>","PeriodicalId":49552,"journal":{"name":"Seizure-European Journal of Epilepsy","volume":"132 ","pages":"Pages 163-170"},"PeriodicalIF":2.8,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-13DOI: 10.1016/j.seizure.2025.09.010
Aiman Al Wahaibi , Karnig Kazazian , Margaret Gopaul , Alla Iansavitchene , Teneille E. Gofton
Background
Refractory status epilepticus (RSE) may have many different causes. Preventing neurological complications and controlling acute seizures are early priorities, but long-term cognitive consequences must also be considered.
Objective
The objective of this scoping review is to report the spectrum of outcomes following admission to hospital for RSE from all etiologies and to determine whether there is evidence to suggest that survivors of new-onset RSE (NORSE) have different cognitive outcomes compared to survivors of RSE of identified etiology.
Methods
Scoping review methodology was used for this study. A clinical librarian prepared the search strategy. Studies were eligible if they were original research reporting cognitive outcomes after RSE.
Results
2202 articles were identified, of which 2121 were excluded. After full text review, we included 14 studies. Studies were from 2005–2023 and included retrospective, prospective and case studies with a total of 323 patients from ages 1–80 years. Outcomes were similar across studies, but there was heterogeneity with respect to tests used and timing of outcome measurement. Most pediatric reports were in survivors of NORSE and a minority of pediatric survivors return to baseline, with a large proportion of survivors having intellectual disability ranging from mild to severe. Outcomes were less consistent across adult survivors, with some having minimal cognitive impairment and others reporting that no previously employed patients returning to employment.
Conclusion
Current approaches to cognitive assessment in survivors of RSE are highly variable. A large proportion of survivors had impairment in greater than one cognitive domain. Future research should focus on using age-appropriate, domain-specific tools administered at defined timepoints post-RSE.
{"title":"The spectrum of cognitive outcomes following admission to hospital for refractory status epilepticus (RSE): A scoping review","authors":"Aiman Al Wahaibi , Karnig Kazazian , Margaret Gopaul , Alla Iansavitchene , Teneille E. Gofton","doi":"10.1016/j.seizure.2025.09.010","DOIUrl":"10.1016/j.seizure.2025.09.010","url":null,"abstract":"<div><h3>Background</h3><div>Refractory status epilepticus (RSE) may have many different causes. Preventing neurological complications and controlling acute seizures are early priorities, but long-term cognitive consequences must also be considered.</div></div><div><h3>Objective</h3><div>The objective of this scoping review is to report the spectrum of outcomes following admission to hospital for RSE from all etiologies and to determine whether there is evidence to suggest that survivors of new-onset RSE (NORSE) have different cognitive outcomes compared to survivors of RSE of identified etiology.</div></div><div><h3>Methods</h3><div>Scoping review methodology was used for this study. A clinical librarian prepared the search strategy. Studies were eligible if they were original research reporting cognitive outcomes after RSE.</div></div><div><h3>Results</h3><div>2202 articles were identified, of which 2121 were excluded. After full text review, we included 14 studies. Studies were from 2005–2023 and included retrospective, prospective and case studies with a total of 323 patients from ages 1–80 years. Outcomes were similar across studies, but there was heterogeneity with respect to tests used and timing of outcome measurement. Most pediatric reports were in survivors of NORSE and a minority of pediatric survivors return to baseline, with a large proportion of survivors having intellectual disability ranging from mild to severe. Outcomes were less consistent across adult survivors, with some having minimal cognitive impairment and others reporting that no previously employed patients returning to employment.</div></div><div><h3>Conclusion</h3><div>Current approaches to cognitive assessment in survivors of RSE are highly variable. A large proportion of survivors had impairment in greater than one cognitive domain. Future research should focus on using age-appropriate, domain-specific tools administered at defined timepoints post-RSE.</div></div>","PeriodicalId":49552,"journal":{"name":"Seizure-European Journal of Epilepsy","volume":"132 ","pages":"Pages 154-160"},"PeriodicalIF":2.8,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145092891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-12DOI: 10.1016/j.seizure.2025.09.008
Edward Faught , Emily Klatte , Clarence T. Wade , Sean Stern , Wesley T. Kerr
Purpose
This study evaluated the rate of new occurrence of select comorbidities in adults after events of uncontrolled epilepsy versus controlled epilepsy.
Methods
The HealthVerity Marketplace Inovalon healthcare claims database was used. Adults (≥18 years) with an epilepsy diagnosis (ICD-10-CM G40*) prescribed at least one antiseizure medication (ASM) between January 1, 2015, and December 31, 2021, were included. Patients were categorized as having either a first-filled or third-filled ASM. The first ASM filled was defined as no ASMs filled for at least 1 year of enrollment. Uncontrolled epilepsy events within 1 year of new ASM initiation were: seizure-related inpatient or emergency room visit or initiation of subsequent ASM. Patients with uncontrolled and controlled epilepsy were propensity score matched. Time to first new comorbidity was measured for cardiac/metabolic, neuropsychiatric, and neurologic disorders.
Results
First-filled ASM start date was identified for 78,714 patients with epilepsy, 64,031 of whom received a third ASM. Most patients had an uncontrolled epilepsy event within the first year after first-filled (57%) ASM initiation and after third-filled (56%) ASM initiation. The rate of most neuropsychiatric and neurologic comorbidities was higher among patients with uncontrolled epilepsy during first-filled and third-filled ASM. The rate of most cardiac/metabolic comorbidities was higher among patients with uncontrolled epilepsy after third-filled ASM initiation; however, these comorbidities were more common in controlled epilepsy during first-filled ASM.
Conclusion
Patients with uncontrolled epilepsy had a higher rate of new-onset comorbidities. These results indicated that seizure control may influence the non-seizure impacts of epilepsy.
{"title":"New onset of comorbidities in people with epilepsy in a national healthcare claims database","authors":"Edward Faught , Emily Klatte , Clarence T. Wade , Sean Stern , Wesley T. Kerr","doi":"10.1016/j.seizure.2025.09.008","DOIUrl":"10.1016/j.seizure.2025.09.008","url":null,"abstract":"<div><h3>Purpose</h3><div>This study evaluated the rate of new occurrence of select comorbidities in adults after events of uncontrolled epilepsy versus controlled epilepsy.</div></div><div><h3>Methods</h3><div>The HealthVerity Marketplace Inovalon healthcare claims database was used. Adults (≥18 years) with an epilepsy diagnosis (ICD-10-CM G40*) prescribed at least one antiseizure medication (ASM) between January 1, 2015, and December 31, 2021, were included. Patients were categorized as having either a first-filled or third-filled ASM. The first ASM filled was defined as no ASMs filled for at least 1 year of enrollment. Uncontrolled epilepsy events within 1 year of new ASM initiation were: seizure-related inpatient or emergency room visit or initiation of subsequent ASM. Patients with uncontrolled and controlled epilepsy were propensity score matched. Time to first new comorbidity was measured for cardiac/metabolic, neuropsychiatric, and neurologic disorders.</div></div><div><h3>Results</h3><div>First-filled ASM start date was identified for 78,714 patients with epilepsy, 64,031 of whom received a third ASM. Most patients had an uncontrolled epilepsy event within the first year after first-filled (57%) ASM initiation and after third-filled (56%) ASM initiation. The rate of most neuropsychiatric and neurologic comorbidities was higher among patients with uncontrolled epilepsy during first-filled and third-filled ASM. The rate of most cardiac/metabolic comorbidities was higher among patients with uncontrolled epilepsy after third-filled ASM initiation; however, these comorbidities were more common in controlled epilepsy during first-filled ASM.</div></div><div><h3>Conclusion</h3><div>Patients with uncontrolled epilepsy had a higher rate of new-onset comorbidities. These results indicated that seizure control may influence the non-seizure impacts of epilepsy.</div></div>","PeriodicalId":49552,"journal":{"name":"Seizure-European Journal of Epilepsy","volume":"132 ","pages":"Pages 178-185"},"PeriodicalIF":2.8,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145186768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-10DOI: 10.1016/j.seizure.2025.09.006
Pietro Baso , Silvia Masnada , Monica Maria Lodi , Federica Teutonico , Aglaia Vignoli , Emilia Ricci , Maria Paola Canevini , Francesca Brustia , Maurizio Viri , Cristina Cereda , Luca Lalli , Simona Ferraro , Pierangelo Veggiotti
Objectives
To identify possible predictors of progression from febrile seizures to epilepsy or genetic epilepsy with febrile seizures plus (GEFS+), and to evaluate the management of febrile seizures in Italian clinical settings.
Methods
231 children with complex febrile seizures, febrile status epilepticus, or recurrent episodes of simple febrile seizures requiring therapy or follow-up, were recruited from four different hospitals. At the baseline evaluation and during follow-up, data were collected regarding each child’s febrile seizures (number, duration, triggers, clinical characteristics), psychomotor development, possible neuropsychiatric comorbidities, any family history of neuropsychiatric disorders, as well as findings of electroencephalographic evaluation (EEG), diagnostic tests, and prescribed treatments. The data were analyzed using Mann-Whitney and Fisher tests, and univariate and multivariate logistic models.
Results
A family history of epilepsy, a higher absolute number of episodes, an older age at onset of febrile seizures, and the presence of afebrile seizures were found to be factors associated with an increased risk of developing epilepsy or GEFS+. Conversely, a normal EEG at onset and an increase in the number of simple febrile seizures or of complex febrile seizures occurring within the first 24 h were associated with a lower risk.
Conclusions
This study provides previously unreported evidence relevant to the prediction of epilepsy or GEFS+ in patients with febrile seizures, which may facilitate the identification of new prognostic factors. It also highlights concerns regarding the current national and international guidelines on febrile seizures.
{"title":"Prediction of evolution to epilepsy or genetic epilepsy with febrile seizures plus (GEFS+) in children presenting with febrile seizures: a retrospective multicenter longitudinal study","authors":"Pietro Baso , Silvia Masnada , Monica Maria Lodi , Federica Teutonico , Aglaia Vignoli , Emilia Ricci , Maria Paola Canevini , Francesca Brustia , Maurizio Viri , Cristina Cereda , Luca Lalli , Simona Ferraro , Pierangelo Veggiotti","doi":"10.1016/j.seizure.2025.09.006","DOIUrl":"10.1016/j.seizure.2025.09.006","url":null,"abstract":"<div><h3>Objectives</h3><div>To identify possible predictors of progression from febrile seizures to epilepsy or genetic epilepsy with febrile seizures plus (GEFS+), and to evaluate the management of febrile seizures in Italian clinical settings.</div></div><div><h3>Methods</h3><div>231 children with complex febrile seizures, febrile status epilepticus, or recurrent episodes of simple febrile seizures requiring therapy or follow-up, were recruited from four different hospitals. At the baseline evaluation and during follow-up, data were collected regarding each child’s febrile seizures (number, duration, triggers, clinical characteristics), psychomotor development, possible neuropsychiatric comorbidities, any family history of neuropsychiatric disorders, as well as findings of electroencephalographic evaluation (EEG), diagnostic tests, and prescribed treatments. The data were analyzed using Mann-Whitney and Fisher tests, and univariate and multivariate logistic models.</div></div><div><h3>Results</h3><div>A family history of epilepsy, a higher absolute number of episodes, an older age at onset of febrile seizures, and the presence of afebrile seizures were found to be factors associated with an increased risk of developing epilepsy or GEFS+. Conversely, a normal EEG at onset and an increase in the number of simple febrile seizures or of complex febrile seizures occurring within the first 24 h were associated with a lower risk.</div></div><div><h3>Conclusions</h3><div>This study provides previously unreported evidence relevant to the prediction of epilepsy or GEFS+ in patients with febrile seizures, which may facilitate the identification of new prognostic factors. It also highlights concerns regarding the current national and international guidelines on febrile seizures.</div></div>","PeriodicalId":49552,"journal":{"name":"Seizure-European Journal of Epilepsy","volume":"132 ","pages":"Pages 147-153"},"PeriodicalIF":2.8,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145092906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-06DOI: 10.1016/j.seizure.2025.09.005
Xiaoli Wang , Xinbo Zhang , Jingya Wei , Chenwei Li , Yuanhang Pan, Gengyao Hu, Min Li, Wenjuan Zhang, Yong-Hong Liu
Background and Objective
Juvenile absence epilepsy is a common idiopathic generalized epilepsy syndrome that often requires long-term antiseizure medications (ASMs). However, it remains unclear whether and when such long-term medication is necessary. In this study, we aimed to explore the long-term seizure outcomes and the feasibility of ASMs withdrawal in patients with JAE. Additionally, we aimed to investigate the evolution of EEG patterns over time.
Methods
We conducted a retrospective study on patients diagnosed with JAE according to the 2022 ILAE at Xijing Hospital between March 2014 and Dec 2024. We performed a retrospective review of their 24-h video-EEG recordings for seizure semiology and EEG pattern. Patient demographics, baseline clinical characteristics, and treatment details were extracted from clinical charts and electronic health records. All further follow-up visits were either through telemedicine or in-person visits.
Results
This retrospective study included 58 patients diagnosed with JAE, with a mean age at epilepsy onset of 11.86 ± 3.87 years. The median follow-up duration was 9.57 years (range, 3–27 years). Among these patients, 38 (65.5 %) achieved seizure freedom for at least 2 years. Treatment with valproate was identified as an independent predictor of a favorable outcome in terms of seizure freedom. Conversely, the total number of generalized tonic-clonic seizures experienced, presence of absence seizures on follow-up EEG and the persistence of hyperventilation positivity on EEG were associated with an unfavorable outcome regarding seizure freedom. Among the 38 patients, 25 (65.8 %) did not experience seizure recurrence. ASMs withdrawal was attempted in 28 patients (48.3 %) and 18 of them did not experience seizure recurrence during the tapering process. Among these 18 patients, ASMs were discontinued in 9 patients at the last follow-up.
The age of onset (p = 0.040) and age at last follow up (p = 0.044) were associated with seizure recurrence. After a median EEG follow-up period of 6 years, abnormal EEG improved in 34 of the 58 patients (58.6 %). Additionally, 14 of the 58 patients (24.1 %) had normal EEG in subsequent recordings.
Conclusion
Seizures were effectively controlled with ASMs in most patients with JAE, and a significant proportion of patients were able to attempt ASMs withdrawal without experiencing seizure recurrence. Additionally, EEG patterns of GSWD improved on follow-up EEGs for the majority of patients.
{"title":"Long-term seizure outcomes and the likelihood of antiseizure medication withdrawal in patients with juvenile absence epilepsy: A 10-year follow-up study","authors":"Xiaoli Wang , Xinbo Zhang , Jingya Wei , Chenwei Li , Yuanhang Pan, Gengyao Hu, Min Li, Wenjuan Zhang, Yong-Hong Liu","doi":"10.1016/j.seizure.2025.09.005","DOIUrl":"10.1016/j.seizure.2025.09.005","url":null,"abstract":"<div><h3>Background and Objective</h3><div>Juvenile absence epilepsy is a common idiopathic generalized epilepsy syndrome that often requires long-term antiseizure medications (ASMs). However, it remains unclear whether and when such long-term medication is necessary. In this study, we aimed to explore the long-term seizure outcomes and the feasibility of ASMs withdrawal in patients with JAE. Additionally, we aimed to investigate the evolution of EEG patterns over time.</div></div><div><h3>Methods</h3><div>We conducted a retrospective study on patients diagnosed with JAE according to the 2022 ILAE at Xijing Hospital between March 2014 and Dec 2024. We performed a retrospective review of their 24-h video-EEG recordings for seizure semiology and EEG pattern. Patient demographics, baseline clinical characteristics, and treatment details were extracted from clinical charts and electronic health records. All further follow-up visits were either through telemedicine or in-person visits.</div></div><div><h3>Results</h3><div>This retrospective study included 58 patients diagnosed with JAE, with a mean age at epilepsy onset of 11.86 ± 3.87 years. The median follow-up duration was 9.57 years (range, 3–27 years). Among these patients, 38 (65.5 %) achieved seizure freedom for at least 2 years. Treatment with valproate was identified as an independent predictor of a favorable outcome in terms of seizure freedom. Conversely, the total number of generalized tonic-clonic seizures experienced, presence of absence seizures on follow-up EEG and the persistence of hyperventilation positivity on EEG were associated with an unfavorable outcome regarding seizure freedom. Among the 38 patients, 25 (65.8 %) did not experience seizure recurrence. ASMs withdrawal was attempted in 28 patients (48.3 %) and 18 of them did not experience seizure recurrence during the tapering process. Among these 18 patients, ASMs were discontinued in 9 patients at the last follow-up.</div><div>The age of onset (<em>p</em> = 0.040) and age at last follow up (<em>p</em> = 0.044) were associated with seizure recurrence. After a median EEG follow-up period of 6 years, abnormal EEG improved in 34 of the 58 patients (58.6 %). Additionally, 14 of the 58 patients (24.1 %) had normal EEG in subsequent recordings.</div></div><div><h3>Conclusion</h3><div>Seizures were effectively controlled with ASMs in most patients with JAE, and a significant proportion of patients were able to attempt ASMs withdrawal without experiencing seizure recurrence. Additionally, EEG patterns of GSWD improved on follow-up EEGs for the majority of patients.</div></div>","PeriodicalId":49552,"journal":{"name":"Seizure-European Journal of Epilepsy","volume":"132 ","pages":"Pages 117-124"},"PeriodicalIF":2.8,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145049576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}