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Yao J, Liao C, Wang Y, Xiao Z. A meta-analysis of the relationship between abnormal pretreatment EEG and epilepsy recurrence. Epilepsy Res 2024; 203:107368. [PMID: 38713974 DOI: 10.1016/j.eplepsyres.2024.107368] [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: 01/09/2024] [Revised: 04/04/2024] [Accepted: 04/22/2024] [Indexed: 05/09/2024]
Abstract
BACKGROUND Researchers have studied the risk factors for epilepsy recurrence among patients who withdraw from antiseizure medication (ASM). These studies aimed to determine the optimal time for ASM withdrawal. EEG findings are one of the risk factors that has been studied. However, it remains unclear whether abnormal pretreatment EEG findings are a risk factor for recurrence after ASM withdrawal. We performed this meta-analysis to clarify this issue. METHODS We retrieved literature from the PubMed and Embase databases, and used the NewcastleOttawa Scale to evaluate the methodological quality of the included studies. RevMan 5.3 software was used to analyse the data. RESULTS In total,710 articles were retrieved from the databases. Ultimately, after screening, 11 articles involving 1686 patients with epilepsy were included. Compared with that for a normal EEG, the odds ratio (OR) for an abnormal EEG was 1.10 (P=0.50), with an I2 value of 32% (P=0.15). Subgroup analysis revealed that the children-to-adolescents subgroup had an OR of 1.21 (P=0.27), and the children-to-adults subgroup had an OR of 0.64 (P=0.14) for an abnormal EEG. A separate subgroup analysis revealed that the focal epilepsy subgroup had an OR of 1.30 (P=0.37), and the generalized epilepsy and focal epilepsy subgroup had an OR of 1.07 (P=0.67) for an abnormal EEG. CONCLUSIONS The risk of epilepsy recurrence is not related to pretreatment EEG findings, regardless of age or epilepsy classification. The associations of pre- and posttreatment EEG alterations with epilepsy recurrence are controversial. Due to the limitations of our article, further research is needed.
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Affiliation(s)
- Juan Yao
- Department of Electrophysiology, People's Hospital of Chongqing Liang Jiang New Area, Chongqing 401147, China
| | - Chengrong Liao
- Department of Electrophysiology, People's Hospital of Chongqing Liang Jiang New Area, Chongqing 401147, China
| | - Yao Wang
- Department of Electrophysiology, People's Hospital of Chongqing Liang Jiang New Area, Chongqing 401147, China
| | - Zheng Xiao
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
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Liu Y, Hu G, Zhang M, Lin J. Association between dietary carbohydrate intake percentage and epilepsy prevalence in the NHANES 2013-2018: a cross-sectional study. Nutr Neurosci 2024:1-9. [PMID: 38564407 DOI: 10.1080/1028415x.2024.2329481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
BACKGROUND Epilepsy is a neurological disorder characterized by recurrent seizures. We aimed to investigate the association between the percentage of dietary carbohydrate intake (DCI) and epilepsy prevalence among American adults. METHODS We analyzed the data from 9,584 adults aged 20-80 years who participated in the National Health and Nutrition Examination Survey from 2013 to 2018. Logistic regression was applied to explore the association between the percentage of DCI and epilepsy prevalence. RESULTS A total of 146 (1.5%) individuals with epilepsy were enrolled in this study. The average age of the participants was 56.4 years, and 5,454 (56.9%) individuals were female. A high DCI was associated with an increased prevalence of epilepsy (odds ratio [OR], 4.56; 95% confidence interval [CI], 1.11-18.69; P = 0.035) after adjusting for age, sex, marital status, race/ethnicity, educational level, family income, body mass index, smoking status, drinking status, hypertension, diabetes, and cardiovascular disease. Stratified analyses indicated a positive correlation between DCI and epilepsy prevalence in adults with different characteristics. Compared with individuals in quartile 1 of DCI (<40.5%), those in quartile 4 (>55.4%) had an adjusted OR for epilepsy of 1.72 (95% CI, 1.09-2.73, P = 0.02, P for trend = 0.012). CONCLUSIONS A high percentage of DCI was associated with an increased prevalence of epilepsy. The risk of epilepsy increased 3.5-fold with a 1% increase in DCI. These results suggest an important role of DCI in the dietary management of epilepsy.
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Affiliation(s)
- Yanting Liu
- Department of Neurology, Tianjin Union Medical Center, Tianjin, People's Republic of China
- Tianjin Medical University, Tianjin, People's Republic of China
| | - Guanqun Hu
- Department of Neurology, Tianjin Union Medical Center, Tianjin, People's Republic of China
| | - Meiyun Zhang
- Department of Neurology, Tianjin Union Medical Center, Tianjin, People's Republic of China
| | - Jingna Lin
- Department of Endocrinology, Tianjin Union Medical Center, Tianjin, People's Republic of China
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Lallana S, Fonseca E, Quintana M, Abraira L, Campos-Fernández D, López-Maza S, Santamarina E, Toledo M, Salas-Puig J. Antiseizure medication withdrawal in adult patients with idiopathic generalized epilepsy: Performance of two seizure recurrence prediction models. Epilepsy Behav 2024; 153:109718. [PMID: 38428177 DOI: 10.1016/j.yebeh.2024.109718] [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: 12/16/2023] [Revised: 02/09/2024] [Accepted: 02/22/2024] [Indexed: 03/03/2024]
Abstract
PURPOSE Currently, there is a limited availability of tools to predict seizure recurrence after discontinuation of antiseizure medications (ASMs). This study aimed to establish the seizure recurrence rate following ASM cessation in adult patients with idiopathic generalized epilepsy (IGE) and to assess the predictive performance of the Lamberink and the Stevelink prediction models using real-world data. METHODS Retrospective longitudinal study in IGE patients who underwent ASM withdrawal in a tertiary epilepsy clinic since June 2011, with the latest follow up in January 2024. The minimum follow-up period was 12 months. Clinical and demographic variables were collected, and the seizure recurrence prediction models proposed by Lamberink and Stevelink were applied and evaluated. RESULTS Forty-seven patients (mean age 33.15 ± 8 [20-55] years; 72.35 % women) were included. During the follow-up period, seizures recurred in 25 patients (53.2 %). Median time to recurrence was 8 months [IQR 3-13.5 months], and 17 patients (68 %) relapsed within the first year. None of the relapsing patients developed drug-resistant epilepsy. The only significant risk factor associated with recurrence was a seizure-free period of less than 2 years before discontinuing medication (91.7 % vs 40 %, p =.005). The Stevelink prediction model at both 2 (p =.015) and 5 years (p =.020) achieved statistical significance, with an AUC of 0.72 (95 % CI 0.56-0.88), while the Lamberink model showed inadequate prognostic capability. CONCLUSION In our real-world cohort, a seizure-free period of at least 2 years was the only factor significantly associated with epilepsy remission after ASM withdrawal. Larger studies are needed to accurately predict seizure recurrence in IGE patients.
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Affiliation(s)
- Sofía Lallana
- Epilepsy Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona, Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Elena Fonseca
- Epilepsy Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona, Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - Manuel Quintana
- Epilepsy Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Laura Abraira
- Epilepsy Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona, Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Daniel Campos-Fernández
- Epilepsy Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona, Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Samuel López-Maza
- Epilepsy Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona, Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Estevo Santamarina
- Epilepsy Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona, Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Manuel Toledo
- Epilepsy Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona, Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Javier Salas-Puig
- Epilepsy Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona, Spain
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Diaz-Peregrino R, San-Juan D, Arritola-Uriarte A, Contreras-Salazar Á, Del Moral-Bastida J, Miranda-Ojeda R. Epilepsy and education: A case-control analysis of the impact of an intensive epilepsy training program on undergraduate medical students. Epilepsy Behav 2024; 153:109717. [PMID: 38428173 DOI: 10.1016/j.yebeh.2024.109717] [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: 11/30/2023] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 03/03/2024]
Abstract
AIMS To evaluate the knowledge, attitudes, and practical skills of students submitted to a 6-week intensive training in epilepsy compared to students without any training but mandatory neurology classes. METHODS It is a case-control study. After completing a 6-week intensive Academic, Clinical, and Research Program in epilepsy, TUMSs answered a validated Knowledge Attitudes and Practices (KAP) questionnaire. The control group, composed of undergraduate students who shared the same age, academic year, and compulsory hours for learning about epilepsy as TUMSs, was also assessed through the KAP instrument. Answers from both groups were submitted to Fisher exact and the χ2 test to observe differences among groups. Descriptive statistics were also performed. RESULTS TUMSs displayed better results in theoretical knowledge such as the definition and causes of epilepsy, and the application of paraclinical studies essential for diagnosing epilepsy. From their perspective, people with epilepsy encounter restricted opportunities for preserving their social life and employment and they are more prone to workplace accidents. They are convinced that facing epilepsy presents a notable risk due to the difficulties linked with diagnosis, considering epilepsy a challenging disease for general practitioners to identify and follow up. Likewise, they exhibited improvement in treatment adjustment and treatment monitoring of patients with epilepsy, mainly in pregnancy cases. Finally, they had greater knowledge about what to do when they witness a person experiencing a seizure. CONCLUSION Our study showed that a 6-week intensive education program in epilepsy increased the knowledge and practical skills and changed the attitude toward patients with epilepsy of undergraduate students.
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Affiliation(s)
- Roberto Diaz-Peregrino
- Department of Neurosurgery, University Hospital Heidelberg, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.
| | - Daniel San-Juan
- Epilepsy Clinic, National Institute of Neurology and Neurosurgery, Mexico City, Mexico
| | | | | | | | - Raúl Miranda-Ojeda
- Faculty of Medicine, Autonomous University of the State of Mexico, Toluca, Mexico
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Doerrfuss JI, Hüsing T, Graf L, Ilyas-Feldmann M, Holtkamp M. Non-discontinuation of antiseizure medication in seizure-free epilepsy patients. Eur J Neurol 2024; 31:e16160. [PMID: 38015451 DOI: 10.1111/ene.16160] [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: 07/06/2023] [Revised: 10/03/2023] [Accepted: 11/04/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND AND PURPOSE In patients with epilepsy and sustained seizure freedom, guidelines recommend considering discontinuation of antiseizure medication (ASM) based on shared decision-making. This study aims to identify factors associated with non-discontinuation of ASM in seizure-free patients. METHODS Retrospective data from three sites of an academic outpatient clinic were analyzed. Adult patients with epilepsy who have been seizure-free for ≥24 months on ASM monotherapy were included. The primary end-point was non-discontinuation of ASM, defined as no discontinuation or no dose reduction of ≥25% at the last outpatient clinic visit in the ultimate seizure-free interval. Secondary end-points included frequency of discussion on discontinuation attempts between patients and physicians, adherence to ASM discontinuation decisions, and post-discontinuation seizure outcomes. RESULTS Out of 338 included patients, 81.7% did not discontinue ASM and did not reduce its dose, 11.5% discontinued ASM and 6.8% had a significant dose reduction. Factors independently associated with non-discontinuation of ASM were history of focal to bilateral or generalized tonic-clonic seizures (odds ratio [OR] 2.33, 95% confidence interval [CI] 1.08-5.06), history of breakthrough seizures (OR 3.32, 95% CI 1.10-10.04), history of failed attempts to discontinue or reduce the ASM dose (OR 4.67, 95% CI 1.03-21.11) and higher ASM load at the index visit (OR 6.10, 95% CI 2.09-17.78). Discontinuation attempts were made during the entire period of seizure freedom and were most commonly undertaken ≥10 years after the last seizure. CONCLUSIONS This study provides insights into factors associated with the shared decision-making process regarding ASM discontinuation in seizure-free patients and highlights the importance of considering individual patient characteristics and seizure history.
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Affiliation(s)
- Jakob I Doerrfuss
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Neurology with Experimental Neurology, Berlin, Germany
- Center for Stroke Research Berlin, Berlin, Germany
| | - Thea Hüsing
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Neurology with Experimental Neurology, Berlin, Germany
| | - Luise Graf
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Neurology with Experimental Neurology, Berlin, Germany
| | - Maria Ilyas-Feldmann
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Neurology with Experimental Neurology, Berlin, Germany
| | - Martin Holtkamp
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Neurology with Experimental Neurology, Berlin, Germany
- Epilepsy-Center Berlin-Brandenburg, Institute for Diagnostics of Epilepsy, Berlin, Germany
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Zou DF, Li XY, Lu XG, Wang HL, Song W, Zhang MW, Liu XR, Li BM, Liao JX, Zhong JM, Meng H, Li B. Association of FAT1 with focal epilepsy and correlation between seizure relapse and gene expression stage. Seizure 2024; 116:37-44. [PMID: 36941137 DOI: 10.1016/j.seizure.2023.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/13/2023] Open
Abstract
PURPOSE The FAT1 gene encodes FAT atypical cadherin 1, which is essential for foetal development, including brain development. This study aimed to investigate the relationship between FAT1 variants and epilepsy. METHODS Trio-based whole-exome sequencing was performed on a cohort of 313 patients with epilepsy. Additional cases with FAT1 variants were collected from the China Epilepsy Gene V.1.0 Matching Platform. RESULTS Four pairs of compound heterozygous missense FAT1 variants were identified in four unrelated patients with partial (focal) epilepsy and/or febrile seizures, but without intellectual disability/developmental abnormalities. These variants presented no/very low frequencies in the gnomAD database, and the aggregate frequencies in this cohort were significantly higher than those in controls. Two additional compound heterozygous missense variants were identified in two unrelated cases using the gene-matching platform. All patients experienced infrequent (yearly/monthly) complex partial seizures or secondary generalised tonic-clonic seizures. They responded well toantiseizure medication, but seizures relapsed in three cases when antiseizure medication were decreased or withdrawn after being seizure-free for three to six years, which correlated with the expression stage of FAT1. Genotype-phenotype analysis showed that epilepsy-associated FAT1 variants were missense, whereas non-epilepsy-associated variants were mainly truncated. The relationship between FAT1 and epilepsy was evaluated to be "Strong" by the Clinical Validity Framework of ClinGen. CONCLUSIONS FAT1 is a potential causative gene of partial epilepsy and febrile seizures. Gene expression stage was suggested to be one of the considerations in determining the duration ofantiseizure medication. Genotype-phenotype correlation helps to explain the mechanisms underlying phenotypic variation.
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Affiliation(s)
- Dong-Fang Zou
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China; Epilepsy Center and Department of Neurology, Shenzhen Children's Hospital, Shantou University Medical College, Shenzhen, China
| | - Xiao-Yan Li
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China; Department of Neurology, Jiangxi Provincial Children's Hospital, Nanchang, China
| | - Xin-Guo Lu
- Epilepsy Center and Department of Neurology, Shenzhen Children's Hospital, Shantou University Medical College, Shenzhen, China
| | - Huai-Li Wang
- Department of Pediatric Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Wang Song
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China
| | - Meng-Wen Zhang
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China
| | - Xiao-Rong Liu
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China
| | - Bing-Mei Li
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China
| | - Jian-Xiang Liao
- Epilepsy Center and Department of Neurology, Shenzhen Children's Hospital, Shantou University Medical College, Shenzhen, China
| | - Jian-Min Zhong
- Department of Neurology, Jiangxi Provincial Children's Hospital, Nanchang, China
| | - Heng Meng
- Department of Neurology, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou, China..
| | - Bin Li
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China.
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Peters KB, Templer J, Gerstner ER, Wychowski T, Storstein AM, Dixit K, Walbert T, Melnick K, Hrachova M, Partap S, Ullrich NJ, Ghiaseddin AP, Mrgula M. Discontinuation of Antiseizure Medications in Patients With Brain Tumors. Neurology 2024; 102:e209163. [PMID: 38290092 DOI: 10.1212/wnl.0000000000209163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 12/05/2023] [Indexed: 02/01/2024] Open
Abstract
Patients with brain tumors will experience seizures during their disease course. While providers can use antiseizure medications to control these events, patients with brain tumors can experience side effects, ranging from mild to severe, from these medications. Providers in subspecialties such as neurology, neuro-oncology, neurosurgery, radiation oncology, and medical oncology often work with patients with brain tumor to balance seizure control and the adverse toxicity of antiseizure medications. In this study, we sought to explore the problem of brain tumor-related seizures/epilepsy in the context of how and when to consider antiseizure medication discontinuation. Moreover, we thoroughly evaluate the literature on antiseizure medication discontinuation for adult and pediatric patients and highlight recommendations relevant to patients with both brain tumors and seizures.
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Affiliation(s)
- Katherine B Peters
- From the Departments of Neurosurgery and Neurology (K.B.P.), Duke University Medical Center, Durham, NC; Department of Neurology (J.T., K.D.), Northwestern University, Chicago, IL; Neurology (E.R.G.), Massachusetts General Hospital, Boston; Department of Neurology (T. Wychowski), University of Rochester Medical Center, Rochester, NY; Department of Neurology (A.M.S.), Haukeland University Hospital, Bergen, Norway; Departments of Neurology and Neurosurgery (T. Walbert), Henry Ford Health, Wayne State University and Michigan State University, Detroit; Neurosurgery (K.M., A.P.G.), University of Florida, Gainesville; Neurosurgery (M.H.), Oklahoma University, Oklahoma City; Departments of Neurology and Pediatrics (S.P.), Stanford University, Palo Alto, CA; Neurology (N.J.U.), Boston Children's Hospital, MA; and Neurology (M.M.), Mayo Clinic, Phoenix, AZ
| | - Jessica Templer
- From the Departments of Neurosurgery and Neurology (K.B.P.), Duke University Medical Center, Durham, NC; Department of Neurology (J.T., K.D.), Northwestern University, Chicago, IL; Neurology (E.R.G.), Massachusetts General Hospital, Boston; Department of Neurology (T. Wychowski), University of Rochester Medical Center, Rochester, NY; Department of Neurology (A.M.S.), Haukeland University Hospital, Bergen, Norway; Departments of Neurology and Neurosurgery (T. Walbert), Henry Ford Health, Wayne State University and Michigan State University, Detroit; Neurosurgery (K.M., A.P.G.), University of Florida, Gainesville; Neurosurgery (M.H.), Oklahoma University, Oklahoma City; Departments of Neurology and Pediatrics (S.P.), Stanford University, Palo Alto, CA; Neurology (N.J.U.), Boston Children's Hospital, MA; and Neurology (M.M.), Mayo Clinic, Phoenix, AZ
| | - Elizabeth R Gerstner
- From the Departments of Neurosurgery and Neurology (K.B.P.), Duke University Medical Center, Durham, NC; Department of Neurology (J.T., K.D.), Northwestern University, Chicago, IL; Neurology (E.R.G.), Massachusetts General Hospital, Boston; Department of Neurology (T. Wychowski), University of Rochester Medical Center, Rochester, NY; Department of Neurology (A.M.S.), Haukeland University Hospital, Bergen, Norway; Departments of Neurology and Neurosurgery (T. Walbert), Henry Ford Health, Wayne State University and Michigan State University, Detroit; Neurosurgery (K.M., A.P.G.), University of Florida, Gainesville; Neurosurgery (M.H.), Oklahoma University, Oklahoma City; Departments of Neurology and Pediatrics (S.P.), Stanford University, Palo Alto, CA; Neurology (N.J.U.), Boston Children's Hospital, MA; and Neurology (M.M.), Mayo Clinic, Phoenix, AZ
| | - Thomas Wychowski
- From the Departments of Neurosurgery and Neurology (K.B.P.), Duke University Medical Center, Durham, NC; Department of Neurology (J.T., K.D.), Northwestern University, Chicago, IL; Neurology (E.R.G.), Massachusetts General Hospital, Boston; Department of Neurology (T. Wychowski), University of Rochester Medical Center, Rochester, NY; Department of Neurology (A.M.S.), Haukeland University Hospital, Bergen, Norway; Departments of Neurology and Neurosurgery (T. Walbert), Henry Ford Health, Wayne State University and Michigan State University, Detroit; Neurosurgery (K.M., A.P.G.), University of Florida, Gainesville; Neurosurgery (M.H.), Oklahoma University, Oklahoma City; Departments of Neurology and Pediatrics (S.P.), Stanford University, Palo Alto, CA; Neurology (N.J.U.), Boston Children's Hospital, MA; and Neurology (M.M.), Mayo Clinic, Phoenix, AZ
| | - Anette M Storstein
- From the Departments of Neurosurgery and Neurology (K.B.P.), Duke University Medical Center, Durham, NC; Department of Neurology (J.T., K.D.), Northwestern University, Chicago, IL; Neurology (E.R.G.), Massachusetts General Hospital, Boston; Department of Neurology (T. Wychowski), University of Rochester Medical Center, Rochester, NY; Department of Neurology (A.M.S.), Haukeland University Hospital, Bergen, Norway; Departments of Neurology and Neurosurgery (T. Walbert), Henry Ford Health, Wayne State University and Michigan State University, Detroit; Neurosurgery (K.M., A.P.G.), University of Florida, Gainesville; Neurosurgery (M.H.), Oklahoma University, Oklahoma City; Departments of Neurology and Pediatrics (S.P.), Stanford University, Palo Alto, CA; Neurology (N.J.U.), Boston Children's Hospital, MA; and Neurology (M.M.), Mayo Clinic, Phoenix, AZ
| | - Karan Dixit
- From the Departments of Neurosurgery and Neurology (K.B.P.), Duke University Medical Center, Durham, NC; Department of Neurology (J.T., K.D.), Northwestern University, Chicago, IL; Neurology (E.R.G.), Massachusetts General Hospital, Boston; Department of Neurology (T. Wychowski), University of Rochester Medical Center, Rochester, NY; Department of Neurology (A.M.S.), Haukeland University Hospital, Bergen, Norway; Departments of Neurology and Neurosurgery (T. Walbert), Henry Ford Health, Wayne State University and Michigan State University, Detroit; Neurosurgery (K.M., A.P.G.), University of Florida, Gainesville; Neurosurgery (M.H.), Oklahoma University, Oklahoma City; Departments of Neurology and Pediatrics (S.P.), Stanford University, Palo Alto, CA; Neurology (N.J.U.), Boston Children's Hospital, MA; and Neurology (M.M.), Mayo Clinic, Phoenix, AZ
| | - Tobias Walbert
- From the Departments of Neurosurgery and Neurology (K.B.P.), Duke University Medical Center, Durham, NC; Department of Neurology (J.T., K.D.), Northwestern University, Chicago, IL; Neurology (E.R.G.), Massachusetts General Hospital, Boston; Department of Neurology (T. Wychowski), University of Rochester Medical Center, Rochester, NY; Department of Neurology (A.M.S.), Haukeland University Hospital, Bergen, Norway; Departments of Neurology and Neurosurgery (T. Walbert), Henry Ford Health, Wayne State University and Michigan State University, Detroit; Neurosurgery (K.M., A.P.G.), University of Florida, Gainesville; Neurosurgery (M.H.), Oklahoma University, Oklahoma City; Departments of Neurology and Pediatrics (S.P.), Stanford University, Palo Alto, CA; Neurology (N.J.U.), Boston Children's Hospital, MA; and Neurology (M.M.), Mayo Clinic, Phoenix, AZ
| | - Kaitlyn Melnick
- From the Departments of Neurosurgery and Neurology (K.B.P.), Duke University Medical Center, Durham, NC; Department of Neurology (J.T., K.D.), Northwestern University, Chicago, IL; Neurology (E.R.G.), Massachusetts General Hospital, Boston; Department of Neurology (T. Wychowski), University of Rochester Medical Center, Rochester, NY; Department of Neurology (A.M.S.), Haukeland University Hospital, Bergen, Norway; Departments of Neurology and Neurosurgery (T. Walbert), Henry Ford Health, Wayne State University and Michigan State University, Detroit; Neurosurgery (K.M., A.P.G.), University of Florida, Gainesville; Neurosurgery (M.H.), Oklahoma University, Oklahoma City; Departments of Neurology and Pediatrics (S.P.), Stanford University, Palo Alto, CA; Neurology (N.J.U.), Boston Children's Hospital, MA; and Neurology (M.M.), Mayo Clinic, Phoenix, AZ
| | - Maya Hrachova
- From the Departments of Neurosurgery and Neurology (K.B.P.), Duke University Medical Center, Durham, NC; Department of Neurology (J.T., K.D.), Northwestern University, Chicago, IL; Neurology (E.R.G.), Massachusetts General Hospital, Boston; Department of Neurology (T. Wychowski), University of Rochester Medical Center, Rochester, NY; Department of Neurology (A.M.S.), Haukeland University Hospital, Bergen, Norway; Departments of Neurology and Neurosurgery (T. Walbert), Henry Ford Health, Wayne State University and Michigan State University, Detroit; Neurosurgery (K.M., A.P.G.), University of Florida, Gainesville; Neurosurgery (M.H.), Oklahoma University, Oklahoma City; Departments of Neurology and Pediatrics (S.P.), Stanford University, Palo Alto, CA; Neurology (N.J.U.), Boston Children's Hospital, MA; and Neurology (M.M.), Mayo Clinic, Phoenix, AZ
| | - Sonia Partap
- From the Departments of Neurosurgery and Neurology (K.B.P.), Duke University Medical Center, Durham, NC; Department of Neurology (J.T., K.D.), Northwestern University, Chicago, IL; Neurology (E.R.G.), Massachusetts General Hospital, Boston; Department of Neurology (T. Wychowski), University of Rochester Medical Center, Rochester, NY; Department of Neurology (A.M.S.), Haukeland University Hospital, Bergen, Norway; Departments of Neurology and Neurosurgery (T. Walbert), Henry Ford Health, Wayne State University and Michigan State University, Detroit; Neurosurgery (K.M., A.P.G.), University of Florida, Gainesville; Neurosurgery (M.H.), Oklahoma University, Oklahoma City; Departments of Neurology and Pediatrics (S.P.), Stanford University, Palo Alto, CA; Neurology (N.J.U.), Boston Children's Hospital, MA; and Neurology (M.M.), Mayo Clinic, Phoenix, AZ
| | - Nicole J Ullrich
- From the Departments of Neurosurgery and Neurology (K.B.P.), Duke University Medical Center, Durham, NC; Department of Neurology (J.T., K.D.), Northwestern University, Chicago, IL; Neurology (E.R.G.), Massachusetts General Hospital, Boston; Department of Neurology (T. Wychowski), University of Rochester Medical Center, Rochester, NY; Department of Neurology (A.M.S.), Haukeland University Hospital, Bergen, Norway; Departments of Neurology and Neurosurgery (T. Walbert), Henry Ford Health, Wayne State University and Michigan State University, Detroit; Neurosurgery (K.M., A.P.G.), University of Florida, Gainesville; Neurosurgery (M.H.), Oklahoma University, Oklahoma City; Departments of Neurology and Pediatrics (S.P.), Stanford University, Palo Alto, CA; Neurology (N.J.U.), Boston Children's Hospital, MA; and Neurology (M.M.), Mayo Clinic, Phoenix, AZ
| | - Ashley P Ghiaseddin
- From the Departments of Neurosurgery and Neurology (K.B.P.), Duke University Medical Center, Durham, NC; Department of Neurology (J.T., K.D.), Northwestern University, Chicago, IL; Neurology (E.R.G.), Massachusetts General Hospital, Boston; Department of Neurology (T. Wychowski), University of Rochester Medical Center, Rochester, NY; Department of Neurology (A.M.S.), Haukeland University Hospital, Bergen, Norway; Departments of Neurology and Neurosurgery (T. Walbert), Henry Ford Health, Wayne State University and Michigan State University, Detroit; Neurosurgery (K.M., A.P.G.), University of Florida, Gainesville; Neurosurgery (M.H.), Oklahoma University, Oklahoma City; Departments of Neurology and Pediatrics (S.P.), Stanford University, Palo Alto, CA; Neurology (N.J.U.), Boston Children's Hospital, MA; and Neurology (M.M.), Mayo Clinic, Phoenix, AZ
| | - Maciej Mrgula
- From the Departments of Neurosurgery and Neurology (K.B.P.), Duke University Medical Center, Durham, NC; Department of Neurology (J.T., K.D.), Northwestern University, Chicago, IL; Neurology (E.R.G.), Massachusetts General Hospital, Boston; Department of Neurology (T. Wychowski), University of Rochester Medical Center, Rochester, NY; Department of Neurology (A.M.S.), Haukeland University Hospital, Bergen, Norway; Departments of Neurology and Neurosurgery (T. Walbert), Henry Ford Health, Wayne State University and Michigan State University, Detroit; Neurosurgery (K.M., A.P.G.), University of Florida, Gainesville; Neurosurgery (M.H.), Oklahoma University, Oklahoma City; Departments of Neurology and Pediatrics (S.P.), Stanford University, Palo Alto, CA; Neurology (N.J.U.), Boston Children's Hospital, MA; and Neurology (M.M.), Mayo Clinic, Phoenix, AZ
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8
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Terman SW, Slinger G, Koek A, Skvarce J, Springer MV, Ziobro JM, Burke JF, Otte WM, Thijs RD, Lossius MI, Marson AG, Bonnett LJ, Braun KPJ. Variation in seizure risk increases from antiseizure medication withdrawal among patients with well-controlled epilepsy: A pooled analysis. Epilepsia Open 2024; 9:333-344. [PMID: 38071463 PMCID: PMC10839298 DOI: 10.1002/epi4.12880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023] Open
Abstract
OBJECTIVE Guidelines suggest considering antiseizure medication (ASM) discontinuation in seizure-free patients with epilepsy. Past work has poorly explored how discontinuation effects vary between patients. We evaluated (1) what factors modify the influence of discontinuation on seizure risk; and (2) the range of seizure risk increase due to discontinuation across low- versus high-risk patients. METHODS We pooled three datasets including seizure-free patients who did and did not discontinue ASMs. We conducted time-to-first-seizure analyses. First, we evaluated what individual patient factors modified the relative effect of ASM discontinuation on seizure risk via interaction terms. Then, we assessed the distribution of 2-year risk increase as predicted by our adjusted logistic regressions. RESULTS We included 1626 patients, of whom 678 (42%) planned to discontinue all ASMs. The mean predicted 2-year seizure risk was 43% [95% confidence interval (CI) 39%-46%] for discontinuation versus 21% (95% CI 19%-24%) for continuation. The mean 2-year absolute seizure risk increase was 21% (95% CI 18%-26%). No individual interaction term was significant after correcting for multiple comparisons. The median [interquartile range (IQR)] risk increase across patients was 19% (IQR 14%-24%; range 7%-37%). Results were unchanged when restricting analyses to only the two RCTs. SIGNIFICANCE No single patient factor significantly modified the influence of discontinuation on seizure risk, although we captured how absolute risk increases change for patients that are at low versus high risk. Patients should likely continue ASMs if even a 7% 2-year increase in the chance of any more seizures would be too much and should likely discontinue ASMs if even a 37% risk increase would be too little. In between these extremes, individualized risk calculation and a careful understanding of patient preferences are critical. Future work will further develop a two-armed individualized seizure risk calculator and contextualize seizure risk thresholds below which to consider discontinuation. PLAIN LANGUAGE SUMMARY Understanding how much antiseizure medications (ASMs) decrease seizure risk is an important part of determining which patients with epilepsy should be treated, especially for patients who have not had a seizure in a while. We found that there was a wide range in the amount that ASM discontinuation increases seizure risk-between 7% and 37%. We found that no single patient factor modified that amount. Understanding what a patient's seizure risk might be if they discontinued versus continued ASM treatment is critical to making informed decisions about whether the benefit of treatment outweighs the downsides.
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Affiliation(s)
- Samuel W. Terman
- Department of NeurologyUniversity of MichiganAnn ArborMichiganUSA
| | - Geertruida Slinger
- Department of Child Neurology, UMC Utrecht Brain Center, Wilhelmina Children's HospitalUniversity Medical Center Utrecht and Utrecht UniversityUtrechtThe Netherlands
| | - Adriana Koek
- Department of NeurologyUniversity of MichiganAnn ArborMichiganUSA
- Department of NeurologyUniversity of California San FranciscoSan FransiscoCaliforniaUSA
| | - Jeremy Skvarce
- University of Michigan Medical SchoolAnn ArborMichiganUSA
| | | | - Julie M. Ziobro
- Department of PediatricsUniversity of MichiganAnn ArborMichiganUSA
| | - James F. Burke
- Department of NeurologyThe Ohio State UniversityColumbusOhioUSA
| | - Willem M. Otte
- Department of Child Neurology, UMC Utrecht Brain Center, Wilhelmina Children's HospitalUniversity Medical Center Utrecht and Utrecht UniversityUtrechtThe Netherlands
| | - Roland D. Thijs
- Stichting Epilepsie Instellingen Nederland (SEIN)HeemstedeThe Netherlands
- Department of NeurologyLeiden University Medical Centre (LUMC)LeidenThe Netherlands
- Queen Square Institute of NeurologyUniversity College LondonLondonUK
| | - Morten I. Lossius
- Oslo University Hospital National Center for EpilepsyOsloNorway
- Institute of Clinical Medicine, University of OsloOsloNorway
| | - Anthony G. Marson
- Department of Pharmacology and TherapeuticsUniversity of LiverpoolLiverpoolUK
| | - Laura J. Bonnett
- Department of Health Data ScienceUniversity of LiverpoolLiverpoolUK
| | - Kees P. J. Braun
- Department of Child Neurology, UMC Utrecht Brain Center, Wilhelmina Children's HospitalUniversity Medical Center Utrecht and Utrecht UniversityUtrechtThe Netherlands
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Wu Y, Zhang Z, Liang P, Zou B, Wang D, Wu X, Zhai X. Early antiseizure medication withdrawal and risk of seizure recurrence in children after epilepsy surgery: A retrospective study. Epilepsy Behav 2024; 150:109556. [PMID: 38029661 DOI: 10.1016/j.yebeh.2023.109556] [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: 09/14/2023] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 12/01/2023]
Abstract
OBJECTIVE The timing of antiseizure medication (ASM) withdrawal in children after epilepsy surgery remains controversial and lacks recognized standards. Given the various negative effects of ASM on development in children, this study aimed to evaluate the safety and feasibility of early ASM withdrawal after epileptic resection surgery. METHODS We retrospectively assessed the seizure outcomes and ASM profiles of children who had undergone epileptic resection surgery between August 2015 and August 2020 and attempted ASM reduction in the early postoperative phase. Tapering the dose of ASM was attempted when children were seizure-free with no interictal epileptiform discharges (IEDs) on electroencephalogram (EEG) for at least 6 months postoperatively. RESULTS This study included 145 children with a median follow-up duration of 40 months. Early ASM tapering was attempted postoperatively in 99 (68.3 %) children. Postoperative ASM discontinuation was attempted in 87 (60.0 %) children. Nine (9.1 %) children experienced seizure recurrence during the ASM reduction stage, and 10 (11.5 %) experienced recurrence after ASM discontinuation. Incomplete resection (P = 0.003) and postoperative seizures before ASM tapering (P = 0.003) were independent predictors of seizure recurrence during and after early ASM withdrawal. SIGNIFICANCE ASM withdrawal is viable and safe to be initiated in children who are seizure-free postoperatively and have no IEDs on the scalp EEG for at least 6 months. Children with incomplete resection and postoperative seizures before ASM withdrawal are at a higher risk of seizure recurrence and may need to continue ASM for a longer period.
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Affiliation(s)
- YuXin Wu
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China; Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China.
| | - ZaiYu Zhang
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China; Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China.
| | - Ping Liang
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China; Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China.
| | - Bin Zou
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China; Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China.
| | - Difei Wang
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China; Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China.
| | - XuanXuan Wu
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China; Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China.
| | - Xuan Zhai
- Department of Neurosurgery, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China; Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Chongqing, China.
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Branford D, Sun JJ, Burrows L, Shankar R. Patterns of antiseizure medications prescribing in people with intellectual disability and epilepsy: A narrative review and analysis. Br J Clin Pharmacol 2023; 89:2028-2038. [PMID: 37060156 DOI: 10.1111/bcp.15748] [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: 01/14/2023] [Revised: 03/26/2023] [Accepted: 04/03/2023] [Indexed: 04/16/2023] Open
Abstract
People with intellectual disabilities (PwID) have a bidirectional relationship with epilepsy. Nearly 25% of PwID have seizures and 30% people with epilepsy are thought to have a significant intellectual impairment. Furthermore, 70% of PwID are thought to have treatment-resistant epilepsy. In the United Kingdom, antiseizure medications (ASMs) are the second most widely prescribed psychotropic agent for PwID. However, it is unclear what the current evidence and patterns is on current prescribing of ASMs, including when and how a case is made to withdraw them. A narrative review along with an analysis of large-scale NHS Digital published data (2015-2020) on several aspects of ASM prescribing by general practices for PwID was undertaken. The review results and data analysis are consolidated and presented as 11 themes to provide a comprehensive overview of the study topic. Recent studies estimate that one-third and one-fifth of PwID are prescribed ASMs. A history of epilepsy is seen as the primary prescribing reason; however, often it is a legacy, and the indication is no longer clear. The proportion receiving ASMs continues to rise with age. This pattern of use does not correlate well with seizure onset. There are limited data on de-prescribing ASMs in PwID. The study population heterogenicity, associated polypharmacy, multimorbidity and higher sudden unexpected death in epilepsy risks are outlined. Suggestions are made from available evidence for improving prescribing practices for PwID and seizures, and key areas for further research in this complex clinical area are outlined.
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Affiliation(s)
- David Branford
- Cornwall Intellectual Disability Equitable Research (CIDER), University of Plymouth Peninsula School of Medicine, Truro, UK
| | - James J Sun
- Royal Free London NHS Foundation Trust, London, UK
| | | | - Rohit Shankar
- Cornwall Intellectual Disability Equitable Research (CIDER), University of Plymouth Peninsula School of Medicine, Truro, UK
- Cornwall Intellectual Disability Equitable Research (CIDER), Cornwall Partnership NHS Foundation Trust, Truro, UK
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11
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Al-Hassany L, Lyons HS, Boucherie DM, Farham F, Lange KS, Marschollek K, Onan D, Pensato U, Storch E, Torrente A, Waliszewska-Prosół M, Reuter U. The sense of stopping migraine prophylaxis. J Headache Pain 2023; 24:9. [PMID: 36792981 PMCID: PMC9933401 DOI: 10.1186/s10194-023-01539-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 01/18/2023] [Indexed: 02/17/2023] Open
Abstract
INTRODUCTION Migraine prophylactic therapy has changed over recent years with the development and approval of monoclonal antibodies (mAbs) targeting the calcitonin gene-related peptide (CGRP) pathway. As new therapies emerged, leading headache societies have been providing guidelines on the initiation and escalation of such therapies. However, there is a lack of robust evidence looking at the duration of successful prophylaxis and the effects of therapy discontinuation. In this narrative review we explore both the biological and clinical rationale for prophylactic therapy discontinuation to provide a basis for clinical decision-making. METHODS Three different literature search strategies were conducted for this narrative review. These include i) stopping rules in comorbidities of migraine in which overlapping preventives are prescribed, notably depression and epilepsy; ii) stopping rules of oral treatment and botox; iii) stopping rules of antibodies targeting the CGRP (receptor). Keywords were utilized in the following databases: Embase, Medline ALL, Web of Science Core collection, Cochran Central Register of Controlled Trials, and Google Scholar. DISCUSSION Reasons to guide decision-making in stopping prophylactic migraine therapies include adverse events, efficacy failure, drug holiday following long-term administration, and patient-specific reasons. Certain guidelines contain both positive and negative stopping rules. Following withdrawal of migraine prophylaxis, migraine burden may return to pre-treatment level, remain unchanged, or lie somewhere in-between. The current suggestion to discontinue CGRP(-receptor) targeted mAbs after 6 to 12 months is based on expert opinion, as opposed to robust scientific evidence. Current guidelines advise the clinician to assess the success of CGRP(-receptor) targeted mAbs after three months. Based on excellent tolerability data and the absence of scientific data, we propose if no other reasons apply, to stop the use of mAbs when the number of migraine days decreases to four or fewer migraine days per month. There is a higher likelihood of developing side effects with oral migraine preventatives, and so we suggest stopping these drugs according to the national guidelines if they are well tolerated. CONCLUSION Translational and basic studies are warranted to investigate the long-term effects of a preventive drug after its discontinuation, starting from what is known about the biology of migraine. In addition, observational studies and, eventually, clinical trials focusing on the effect of discontinuation of migraine prophylactic therapies, are essential to substantiate evidence-based recommendations on stopping rules for both oral preventives and CGRP(-receptor) targeted therapies in migraine.
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Affiliation(s)
- Linda Al-Hassany
- grid.5645.2000000040459992XDepartment of Internal Medicine, Division of Vascular Medicine and Pharmacology, Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Hannah S. Lyons
- grid.6572.60000 0004 1936 7486Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Deirdre M. Boucherie
- grid.5645.2000000040459992XDepartment of Internal Medicine, Division of Vascular Medicine and Pharmacology, Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Fatemeh Farham
- grid.411705.60000 0001 0166 0922Department of Headache, Iranian Centre of Neurological Researchers, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Kristin S. Lange
- grid.6363.00000 0001 2218 4662Department of Neurology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Karol Marschollek
- grid.4495.c0000 0001 1090 049XDepartment of Neurology, Wroclaw Medical University, Wrocław, Poland
| | - Dilara Onan
- grid.14442.370000 0001 2342 7339Spine Health Unit, Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey ,grid.7841.aDepartment of Clinical and Molecular Medicine, Sapienza University, Rome, Italy
| | - Umberto Pensato
- grid.417728.f0000 0004 1756 8807Neurology and Stroke Unit, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy ,grid.452490.eHumanitas University, Pieve Emanuale, Milan, Italy
| | - Elisabeth Storch
- grid.6363.00000 0001 2218 4662Department of Neurology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Angelo Torrente
- grid.10776.370000 0004 1762 5517Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Marta Waliszewska-Prosół
- grid.4495.c0000 0001 1090 049XDepartment of Neurology, Wroclaw Medical University, Wrocław, Poland
| | - Uwe Reuter
- Department of Neurology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany. .,Universitätsmedizin Greifswald, Greifswald, Germany.
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12
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Terman SW, Slinger G, Rheaume CE, Haque AS, Smith SN, van Griethuysen R, van Asch CJJ, Otte WM, Burke JF, Braun KPJ. Antiseizure Medication Withdrawal Practice Patterns: A Survey Among Members of the American Academy of Neurology and EpiCARE. Neurol Clin Pract 2023; 13:e200109. [PMID: 37063781 PMCID: PMC10101711 DOI: 10.1212/cpj.0000000000200109] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/10/2022] [Indexed: 01/20/2023]
Abstract
Background and Objectives To describe neurologist practice patterns, challenges, and decision support needs pertaining to withdrawal of antiseizure medications (ASMs) in patients with well-controlled epilepsy. Methods We sent an electronic survey to (1) US and (2) European physician members of the American Academy of Neurology and (3) members of EpiCARE, a European Reference Network for rare and complex epilepsies. Analyses included frequencies and percentages, and we showed distributions through histograms and violin plots. Results We sent the survey to 4,923 individuals; 463 consented, 411 passed eligibility questions, and 287 responded to at least 1 of these questions. Most respondents indicated that they might ever consider ASM withdrawal, with respondents treating mostly children being more likely ever to consider withdrawal (e.g., medical monotherapy: children 96% vs adults 81%; p < 0.05). The most important factors when making decisions included seizure probability (83%), consequences of seizures (73%), and driving (74%). The top challenges when making decisions included unclear seizure probability (81%), inadequate guidelines (50%), and difficulty communicating probabilities (45%). Respondents would consider withdrawal after a median of 2-year seizure freedom, but also responded that they would begin withdrawal on average only when the postwithdrawal seizure relapse risk in the coming 2 years was less than 15%-30%. Wide variation existed in the use of words or numbers in respondents' counsel methods, for example, percentages vs frequencies or probability of seizure freedom vs seizure. The most highly rated point-of-care methods to inform providers of calculated risk were Kaplan-Meier curves and showing percentages only, rather than pictographs or text recommendations alone. Discussion Most surveyed neurologists would consider withdrawing ASMs in seizure-free individuals. Seizure probability was the largest factor driving decisions, yet estimating seizure probabilities was the greatest challenge. Respondents on average indicated that they may withdraw ASM after a minimum seizure-free duration of 2 years, yet also on average were willing to withdraw when seizure risk decreased below 15%-30%, which is lower than most patients' postwithdrawal risk at 2-year seizure freedom and lower than the equivalent even of a first seizure of life. These findings will inform future efforts at developing decision support tools aimed at optimizing ASM withdrawal decisions.
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Affiliation(s)
- Samuel W Terman
- Department of Neurology (SWT), University of Michigan, Ann Arbor; Department of Child Neurology (GS, WMO, KB), UMC Utrecht Brain Center, University Medical Center Utrecht and Utrecht University, the Netherlands; American Academy of Neurology (CER), Minneapolis, MN; University of Michigan Medical School (ASH); Department of Health Management and Policy (SNS), School of Public Health, University of Michigan, Ann Arbor; Department of Clinical Neurophysiology and Sleep Centre SEIN Zwolle (RvG, CJJvA), the Netherlands; Department of Neurology (JFB), the Ohio State University, Columbus; and Member of the European Reference Network EpiCARE (KPJB)
| | - Geertruida Slinger
- Department of Neurology (SWT), University of Michigan, Ann Arbor; Department of Child Neurology (GS, WMO, KB), UMC Utrecht Brain Center, University Medical Center Utrecht and Utrecht University, the Netherlands; American Academy of Neurology (CER), Minneapolis, MN; University of Michigan Medical School (ASH); Department of Health Management and Policy (SNS), School of Public Health, University of Michigan, Ann Arbor; Department of Clinical Neurophysiology and Sleep Centre SEIN Zwolle (RvG, CJJvA), the Netherlands; Department of Neurology (JFB), the Ohio State University, Columbus; and Member of the European Reference Network EpiCARE (KPJB)
| | - Carol E Rheaume
- Department of Neurology (SWT), University of Michigan, Ann Arbor; Department of Child Neurology (GS, WMO, KB), UMC Utrecht Brain Center, University Medical Center Utrecht and Utrecht University, the Netherlands; American Academy of Neurology (CER), Minneapolis, MN; University of Michigan Medical School (ASH); Department of Health Management and Policy (SNS), School of Public Health, University of Michigan, Ann Arbor; Department of Clinical Neurophysiology and Sleep Centre SEIN Zwolle (RvG, CJJvA), the Netherlands; Department of Neurology (JFB), the Ohio State University, Columbus; and Member of the European Reference Network EpiCARE (KPJB)
| | - Anisa S Haque
- Department of Neurology (SWT), University of Michigan, Ann Arbor; Department of Child Neurology (GS, WMO, KB), UMC Utrecht Brain Center, University Medical Center Utrecht and Utrecht University, the Netherlands; American Academy of Neurology (CER), Minneapolis, MN; University of Michigan Medical School (ASH); Department of Health Management and Policy (SNS), School of Public Health, University of Michigan, Ann Arbor; Department of Clinical Neurophysiology and Sleep Centre SEIN Zwolle (RvG, CJJvA), the Netherlands; Department of Neurology (JFB), the Ohio State University, Columbus; and Member of the European Reference Network EpiCARE (KPJB)
| | - Shawna N Smith
- Department of Neurology (SWT), University of Michigan, Ann Arbor; Department of Child Neurology (GS, WMO, KB), UMC Utrecht Brain Center, University Medical Center Utrecht and Utrecht University, the Netherlands; American Academy of Neurology (CER), Minneapolis, MN; University of Michigan Medical School (ASH); Department of Health Management and Policy (SNS), School of Public Health, University of Michigan, Ann Arbor; Department of Clinical Neurophysiology and Sleep Centre SEIN Zwolle (RvG, CJJvA), the Netherlands; Department of Neurology (JFB), the Ohio State University, Columbus; and Member of the European Reference Network EpiCARE (KPJB)
| | - Renate van Griethuysen
- Department of Neurology (SWT), University of Michigan, Ann Arbor; Department of Child Neurology (GS, WMO, KB), UMC Utrecht Brain Center, University Medical Center Utrecht and Utrecht University, the Netherlands; American Academy of Neurology (CER), Minneapolis, MN; University of Michigan Medical School (ASH); Department of Health Management and Policy (SNS), School of Public Health, University of Michigan, Ann Arbor; Department of Clinical Neurophysiology and Sleep Centre SEIN Zwolle (RvG, CJJvA), the Netherlands; Department of Neurology (JFB), the Ohio State University, Columbus; and Member of the European Reference Network EpiCARE (KPJB)
| | - Charlotte J J van Asch
- Department of Neurology (SWT), University of Michigan, Ann Arbor; Department of Child Neurology (GS, WMO, KB), UMC Utrecht Brain Center, University Medical Center Utrecht and Utrecht University, the Netherlands; American Academy of Neurology (CER), Minneapolis, MN; University of Michigan Medical School (ASH); Department of Health Management and Policy (SNS), School of Public Health, University of Michigan, Ann Arbor; Department of Clinical Neurophysiology and Sleep Centre SEIN Zwolle (RvG, CJJvA), the Netherlands; Department of Neurology (JFB), the Ohio State University, Columbus; and Member of the European Reference Network EpiCARE (KPJB)
| | - Willem M Otte
- Department of Neurology (SWT), University of Michigan, Ann Arbor; Department of Child Neurology (GS, WMO, KB), UMC Utrecht Brain Center, University Medical Center Utrecht and Utrecht University, the Netherlands; American Academy of Neurology (CER), Minneapolis, MN; University of Michigan Medical School (ASH); Department of Health Management and Policy (SNS), School of Public Health, University of Michigan, Ann Arbor; Department of Clinical Neurophysiology and Sleep Centre SEIN Zwolle (RvG, CJJvA), the Netherlands; Department of Neurology (JFB), the Ohio State University, Columbus; and Member of the European Reference Network EpiCARE (KPJB)
| | - James F Burke
- Department of Neurology (SWT), University of Michigan, Ann Arbor; Department of Child Neurology (GS, WMO, KB), UMC Utrecht Brain Center, University Medical Center Utrecht and Utrecht University, the Netherlands; American Academy of Neurology (CER), Minneapolis, MN; University of Michigan Medical School (ASH); Department of Health Management and Policy (SNS), School of Public Health, University of Michigan, Ann Arbor; Department of Clinical Neurophysiology and Sleep Centre SEIN Zwolle (RvG, CJJvA), the Netherlands; Department of Neurology (JFB), the Ohio State University, Columbus; and Member of the European Reference Network EpiCARE (KPJB)
| | - Kees P J Braun
- Department of Neurology (SWT), University of Michigan, Ann Arbor; Department of Child Neurology (GS, WMO, KB), UMC Utrecht Brain Center, University Medical Center Utrecht and Utrecht University, the Netherlands; American Academy of Neurology (CER), Minneapolis, MN; University of Michigan Medical School (ASH); Department of Health Management and Policy (SNS), School of Public Health, University of Michigan, Ann Arbor; Department of Clinical Neurophysiology and Sleep Centre SEIN Zwolle (RvG, CJJvA), the Netherlands; Department of Neurology (JFB), the Ohio State University, Columbus; and Member of the European Reference Network EpiCARE (KPJB)
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13
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Terman SW, Slinger G, Koek A, Skvarce J, Springer MV, Ziobro JM, Burke JF, Otte WM, Thijs RD, Braun KPJ. Frequency of and factors associated with antiseizure medication discontinuation discussions and decisions in patients with epilepsy: A multicenter retrospective chart review. Epilepsia Open 2023. [PMID: 36693718 DOI: 10.1002/epi4.12695] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 01/20/2023] [Indexed: 01/26/2023] Open
Abstract
OBJECTIVE Guidelines suggest considering antiseizure medication (ASM) discontinuation in patients with epilepsy who become seizure-free. Little is known about how discontinuation decisions are being made in practice. We measured the frequency of, and factors associated with, discussions and decisions surrounding ASM discontinuation. METHODS We performed a multicenter retrospective cohort study at the University of Michigan (UM) and two Dutch centers: Wilhelmina Children's Hospital (WCH) and Stichting Epilepsie Instellingen Nederland (SEIN). We screened all children and adults with outpatient epilepsy visits in January 2015 and included those with at least one visit during the subsequent 2 years where they were seizure-free for at least one year. We recorded whether charts documented (1) a discussion with the patient about possible ASM discontinuation and (2) any planned attempt to discontinue at least one ASM. We conducted multilevel logistic regressions to determine factors associated with each outcome. RESULTS We included 1058 visits from 463 patients. Of all patients who were seizure-free at least one year, 248/463 (53%) had documentation of any discussion and 98/463 (21%) planned to discontinue at least one ASM. Corresponding frequencies for patients who were seizure-free at least 2 years were 184/285 (65%) and 74/285 (26%). The probability of discussing or discontinuing increased with longer duration of seizure freedom. Still, even for patients who were 10 years seizure-free, our models predicated that in only 49% of visits was a discontinuation discussion documented, and in only 16% of visits was it decided to discontinue all ASMs. Provider-to-provider variation explained 18% of variation in whether patients discontinued any ASM. SIGNIFICANCE Only approximately half of patients with prolonged seizure freedom had a documented discussion about ASM discontinuation. Discontinuation was fairly rare even among low-risk patients. Future work should further explore barriers to and facilitators of counseling and discontinuation attempts.
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Affiliation(s)
- Samuel W Terman
- University of Michigan Department of Neurology, Ann Arbor, Michigan, USA
| | - Geertruida Slinger
- Department of Child Neurology, UMC Utrecht Brain Center, Wilhelmina Children's Hospital, member of ERN EpiCare, University Medical Center Utrecht and Utrecht University, Utrecht, The Netherlands
| | - Adriana Koek
- University of Michigan Department of Neurology, Ann Arbor, Michigan, USA
| | - Jeremy Skvarce
- University of Michigan Medical School, Ann Arbor, Michigan, USA
| | | | - Julie M Ziobro
- University of Michigan Department of Pediatrics, Ann Arbor, Michigan, USA
| | - James F Burke
- Ohio State University Department of Neurology, Columbus, Ohio, USA
| | - Willem M Otte
- Department of Child Neurology, UMC Utrecht Brain Center, Wilhelmina Children's Hospital, member of ERN EpiCare, University Medical Center Utrecht and Utrecht University, Utrecht, The Netherlands
| | - Roland D Thijs
- Stichting Epilepsie Instellingen Nederland (SEIN), Heemstede, The Netherlands.,Department of Neurology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands.,Queen Square Institute of Neurology, University College London, London, UK
| | - Kees P J Braun
- Department of Child Neurology, UMC Utrecht Brain Center, Wilhelmina Children's Hospital, member of ERN EpiCare, University Medical Center Utrecht and Utrecht University, Utrecht, The Netherlands
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14
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Duan Y, Kang L, He Y, Li M, Li T, Wen Z, Chen L. A pilot study on identifying gene signatures as markers for predicting patient response to antiseizure medications. Neurol Sci 2023; 44:2137-2148. [PMID: 36658410 DOI: 10.1007/s10072-023-06605-2] [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: 09/12/2022] [Accepted: 01/05/2023] [Indexed: 01/21/2023]
Abstract
The majority of the biomarkers were associated with the diagnosis of epilepsy and few of them can be applied to predict the response to antiseizure medications (ASMs). In this study, we identified 26 significantly up-regulated genes and 32 down-regulated genes by comparing the gene expression profiles of patients with epilepsy that responded to valproate with those without applying any ASM. The results of gene set enrichment analysis indicated that the ferroptosis pathway was significantly impacted (p = 0.0087) in patients who responded to valproate. Interestingly, the gene NCOA4 in this pathway exhibited significantly different expression levels between the two groups, indicating that NCOA4 could serve as a potential biomarker to better understand the mechanism of valproate resistance. In addition, six up-regulated genes SF3A2, HMGN2, PABPN1, SSBP3, EFTUD2, and CREB3L2 as well as six down-regulated genes ZFP36L1, ACRC, SUB1, CALM2, TLK1, and STX2 also showed significantly different expression patterns between the two groups. Moreover, based on the gene expression profiles of the patients with the treatment of valproate, carbamazepine, and phenytoin, we proposed a strategy for predicting the response to the ASMs by using the Connectivity Map scoring method. Our findings could be helpful for better understanding the mechanisms of drug resistance of ASMs and improving the clinical treatment of epilepsy.
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Affiliation(s)
- Yifei Duan
- Department of Neurology, West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, 610041, Sichuan, China
| | - Liyuan Kang
- College of Chemistry, Sichuan University, Chengdu, 610064, Sichuan, China
| | - Yujie He
- College of Chemistry, Sichuan University, Chengdu, 610064, Sichuan, China
| | - Menglong Li
- College of Chemistry, Sichuan University, Chengdu, 610064, Sichuan, China
| | - Ting Li
- University of Arkansas at Little Rock and University of Arkansas for Medical Sciences Joint Bioinformatics Program, Little Rock, AK, 72204, USA
| | - Zhining Wen
- College of Chemistry, Sichuan University, Chengdu, 610064, Sichuan, China.
- Medical Big Data Center, Sichuan University, Chengdu, 610064, Sichuan, China.
| | - Lei Chen
- Department of Neurology, West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, 610041, Sichuan, China.
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15
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Zhang X, Zeng J, Gu X, Zhang F, Han Y, Zhang P, Wang Q, Gu R. Relapse After Drug Withdrawal in Patients with Epilepsy After Two Years of Seizure-Free: A Cohort Study. Neuropsychiatr Dis Treat 2023; 19:85-95. [PMID: 36636143 PMCID: PMC9831527 DOI: 10.2147/ndt.s390280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 12/06/2022] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND AND STUDY AIMS Antiepileptic drugs are the first choice of treatment for patients with epilepsy. However, the withdrawal of antiepileptic drugs after seizure-free remains a significant focus for the majority of patients with epilepsy and their families. In this study, we evaluated the risk factors associated with relapse after drug withdrawal in patients with seizure free for 2 years. We aimed to guide patients in seizure-free to assess the risk of drug withdrawal. PATIENTS AND METHODS Through screening, 452 patients with epilepsy were included in the study.Patients were followed up for at least 2 years or more. Analyzed their clinical data by applying the χ2-test, Kaplan-Meier survival analysis and multivariate Cox regression analysis. RESULTS 423 patients completed follow-up, of which 304 cases recurred (71.9%).Related recurrence factors include age of onset, type of seizure, number of AEDs, seizure-free time before withdrawal, and electroencephalogram (EEG) results before drug withdrawal (P<0.05). The results of correlation analysis showed that age of onset, seizure frequency, seizure type, number of AEDs, the period from AEDs treatment to a seizure-free status, EEG results before drug withdrawal, and pre-medication course, were all significantly related to the recurrence of seizures after drug reduction and withdrawal (P<0.05). We identified a range of independent risk factors, including onset age, seizure frequency, Multiple AEDs and the period from AEDs treatment to a seizure-free status. CONCLUSION The overall recurrence rate of epilepsy in our patient cohort was high, and the peak recurrence period was within one-year of drug withdrawal. Patients with partial seizures, a short seizure-free time before withdrawal, severe EEG abnormalities before drug reduction, and a long course of the disease, are prone to relapse. Patients with an older age at onset and a high frequency of attack, those taking multi-drug combination therapy, and those that take a long time to gain control, should be managed carefully to AEDs withdrawal.
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Affiliation(s)
- Xiaoli Zhang
- Department of Neurology, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, People's Republic of China
| | - Jiao Zeng
- Department of Neurology, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, People's Republic of China
| | - Xin Gu
- Department of Neurology, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, People's Republic of China
| | - Fan Zhang
- Department of Neurology, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, People's Republic of China
| | - Yongkai Han
- Department of Neurology, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, People's Republic of China
| | - Ping Zhang
- Department of Neurology, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, People's Republic of China
| | - Qun Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China.,China National Clinical Research Center for Neurological Diseases, Beijing, People's Republic of China
| | - Renjun Gu
- Department of Neurology, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, People's Republic of China
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16
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Zhao Y, Ding H, Zhao X, Qiu X, Li B. Risk factors of recurrence after drug withdrawal in children with epilepsy. Front Neurol 2023; 14:1122827. [PMID: 37181578 PMCID: PMC10172464 DOI: 10.3389/fneur.2023.1122827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 04/07/2023] [Indexed: 05/16/2023] Open
Abstract
This study aimed to evaluate the risk factors for recurrence in pediatric patients with epilepsy following normal antiseizure medication (ASM) treatment and drug withdrawal. We retrospectively analyzed 80 pediatric patients who received treatment at the Qilu Hospital of Shandong University between January 2009 and December 2019 after at least 2 years of seizure-free and normal electroencephalography (EEG) before the regular drug reduction. Patients were followed-up for at least 2 years and divided into the recurrence and nonrecurrence groups based on whether relapse occurred. Clinical information was gathered, and the risk variables for recurrence were statistically analyzed. Post 2 years of drug withdrawal, 19 patients showed relapses. The recurrence rate was 23.75%, and the mean time of recurrence was 11.09 ± 7.57 months, where 7 (36.8%) were women and 12 (63.2%) were men. In all, 41 pediatric patients were followed-up until the 3rd year, of which 2 (4.9%) patients experienced a relapse. Among the remaining 39 patients without relapse, 24 were followed-up until the 4th year, and no recurrence occurred. After being monitored for >4 years, 13 patients experienced no recurrence. The differences in the history of febrile seizures, combined use of ≥2 ASMs, and EEG abnormalities after drug withdrawal between the two groups were statistically significant (p < 0.05). Multivariate binary logistic regression analysis revealed that these factors are independent risk factors for recurrence after drug withdrawal in children with epilepsy: history of febrile seizures (OR = 4.322, 95% CI: 1.262-14.804), combined ASM use (OR = 4.783, 95% CI: 1.409-16.238), and EEG abnormalities after drug withdrawal (OR = 4.688, 95% CI: 1.154-19.050). In summary, our results suggest that the probability of seizure recurrence following drug cessation may be greatly increased by a history of febrile seizures, concomitant use of ≥2 ASMs, and EEG abnormalities after drug cessation. The majority of recurrences occurred in the first 2 years following drug discontinuation, whereas the rate of recurrence was minimal thereafter.
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Affiliation(s)
- Yongheng Zhao
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Hao Ding
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiaoyu Zhao
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China
- Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiaochang Qiu
- Department of Geriatrics, The First Affiliated Hospital of Shandong First Medical University (Shandong Provincial Qianfoshan Hospital), Jinan, China
| | - Baomin Li
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China
- *Correspondence: Baomin Li,
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17
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Antiseizure medications (antiepileptic drugs) in adults: starting, monitoring and stopping. J Neurol 2023; 270:573-581. [PMID: 36153467 DOI: 10.1007/s00415-022-11378-3] [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: 08/21/2022] [Accepted: 09/06/2022] [Indexed: 01/07/2023]
Abstract
Up to 10% of people living to 80 years of age have one or more seizures; and many will not require anti-seizure medication (ASMs). In 85% of patients, the diagnosis comes from the history of the index event. One-third of patients with an apparent "first seizure" have previous events, changing their diagnosis to epilepsy. Targeted investigations are important for classification and risk prediction. Patients with a low risk of seizure recurrence are not usually offered ASM treatment. High-risk patients have multiple seizures, neurological deficits, intellectual disability and/or relevant abnormal investigations; and are offered ASMs. Individual factors modulate this decision-making. Future integrated technologies offer the game-changing potential for seizure monitoring and prediction, but are not yet robust, convenient or affordable. Therapeutic drug monitoring in patients taking ASMs may confirm ASM toxicity, or when non-adherence, malabsorption, or rapid metabolism are suspected causes of breakthrough seizures. They are less useful when these factors are intermittent or irregular. Current evidence does not favour routine monitoring of serum levels, as it neither reliably predicts control, relapse, or adverse effects. The decision to discontinue ASM should follow a full discussion with the patient of risks and benefits. Along with population risk factors for seizure recurrence, the patient's lifestyle and preferences must be considered. ASM are usually discontinued in a slow step-wise fashion, one at a time, after at least two years of remission. Seizure recurrence risk plateaus only after 2 years following ASM discontinuation, and patients need access to specialist follow-up over that period.
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18
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Terman SW, Aschmann HE, Hutton DW, Burke JF. Best-worst scaling preferences among patients with well-controlled epilepsy: Pilot results. PLoS One 2023; 18:e0282658. [PMID: 36867630 PMCID: PMC9983827 DOI: 10.1371/journal.pone.0282658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 02/20/2023] [Indexed: 03/04/2023] Open
Abstract
Epilepsy is a common, serious condition. Fortunately, seizure risk decreases with increasing seizure-free time on antiseizure medications (ASMs). Eventually, patients may consider whether to stop ASMs, which requires weighing treatment benefit versus burden. We developed a questionnaire to quantify patient preferences relevant to ASM decision-making. Respondents rated how concerning they would finding relevant items (e.g., seizure risks, side effects, cost) on a Visual Analogue Scale (VAS, 0-100) and then repeatedly chose the most and least concerning item from subsets (best-worst scaling, BWS). We pretested with neurologists, then recruited adults with epilepsy who were seizure-free at least one year. Primary outcomes were recruitment rate, and qualitative and Likert-based feedback. Secondary outcomes included VAS ratings and best-minus-worst scores. Thirty-one of 60 (52%) contacted patients completed the study. Most patients felt VAS questions were clear (28; 90%), easy to use (27; 87%), and assessed preferences well (25; 83%). Corresponding results for BWS questions were 27 (87%), 29 (97%), and 23 (77%). Physicians suggested adding a 'warmup' question showing a completed example and simplifying terminology. Patients suggested ways to clarify instructions. Cost, inconvenience of taking medication, and laboratory monitoring were the least concerning items. Cognitive side effects and a 50% seizure risk in the next year were the most concerning items. Twelve (39%) of patients made at least one 'inconsistent choice' for example ranking a higher seizure risk as lower concern compared with a lower seizure risk, though 'inconsistent choices' represented only 3% of all question blocks. Our recruitment rate was favorable, most patients agreed the survey was clear, and we describe areas for improvement. 'Inconsistent' responses may lead us to collapse seizure probability items into a single 'seizure' category. Evidence regarding how patients weigh benefits and harms may inform care and guideline development.
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Affiliation(s)
- Samuel W. Terman
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, United States of America
- * E-mail:
| | - Hélène E. Aschmann
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California, United States of America
- Epidemiology Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - David W. Hutton
- Department of Health Management and Policy, School of Public Health, University of Michigan, Ann Arbor, Michigan, United States of America
| | - James F. Burke
- Department of Neurology, the Ohio State University, Columbus, Ohio, United States of America
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Xu K, Wang X, Zhou J, Guan Y, Li T, Luan G. The differential role of magnetic resonance imaging in predicting surgical outcomes between children versus adults with temporal lobe epilepsy. Front Neurosci 2022; 16:1037244. [PMID: 36466178 PMCID: PMC9709438 DOI: 10.3389/fnins.2022.1037244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/01/2022] [Indexed: 11/12/2023] Open
Abstract
OBJECTIVE This study aims to investigate the clinical discrepancies and the different predictors of anterior temporal lobectomy (ATL) in children (<18 years at surgery) and adults (>18 years at surgery) with temporal lobe epilepsy (TLE). MATERIALS AND METHODS A total of 262 patients (56 children and 206 adults) with TLE who underwent ATL were included in this study. The clinical variables, including patients' characteristics, preoperative evaluations, pathology, surgical prognosis, and surgical predictors were assessed the discrepancies between TLE children versus adults using univariate and multivariate analyses. Kaplan-Meier survival analysis was used to calculate the probability of seizure freedom and AEDs withdrawal after ATL, and the difference between TLE children and adults was analyzed using the Log-Rank test. RESULTS There were significant differences including semiology, magnetic resonance imaging (MRI) examinations, numbers of preoperative AEDs, and pathologies between TLE children and adults (P < 0.05, Q < 0.05). The MRI-detected epileptic focus was the only independent predictor of seizure freedom (P = 0.002, Q = 0.036) in TLE children, and the concordance of MRI-detected focus with video-electroencephalography (video-EEG)-detected epileptic zone was the only variable associated with seizure freedom in TLE adults (OR = 2.686, 95% CI = 1.014-7.115, P = 0.047). The TLE children experienced a higher probability of AEDs withdrawal than adults after surgery (P = 0.005). SIGNIFICANCE There were remarkable differences in clinical manifestations, MRI examinations, number of preoperative AEDs, and pathologies between TLE children versus adults. TLE children had a higher possibility of AEDs withdrawal than adults after surgery. The favorable seizure outcome of ATL depended on the early complete resection of MRI-detected epileptogenic focus in TLE children, while the concordance of MRI-detected focus with EEG-detected epileptogenic zone was the only predictor of favorable seizure outcomes in TLE adults.
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Affiliation(s)
- Ke Xu
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Xiongfei Wang
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Jian Zhou
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Yuguang Guan
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Tianfu Li
- Department of Neurology, Sanbo Brain Hospital, Capital Medical University, Beijing, China
- Department of Brain Institute, Center of Epilepsy, Beijing Institute for Brain Disorders, Beijing Key Laboratory of Epilepsy Research, Sanbo Brain Hospital, Capital Medical University, Beijing, China
| | - Guoming Luan
- Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing, China
- Department of Brain Institute, Center of Epilepsy, Beijing Institute for Brain Disorders, Beijing Key Laboratory of Epilepsy Research, Sanbo Brain Hospital, Capital Medical University, Beijing, China
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20
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Tang B, Fu Y, Liu B, Yi Q. Self-perceived burden and associated factors in Chinese adult epilepsy patients: A cross-sectional study. Front Neurol 2022; 13:994664. [PMID: 36176558 PMCID: PMC9513448 DOI: 10.3389/fneur.2022.994664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 08/23/2022] [Indexed: 12/02/2022] Open
Abstract
Objectives Epilepsy requires long-term or lifelong treatment, and patients are prone to financial, emotional and psychological burdens that can cause psychological changes during the treatment process. This study aimed to describe the prevalence and associated factors of Self-Perceived Burden (SPB) in Chinese adult epilepsy patients, informing the treatment and nursing of epilepsy. Methods A total of 143 adult epilepsy patients were included in this study, and the clinical questionnaire survey was conducted at the Third Xiangya Hospital of Central South University in Hunan, China, from March 2022 to June 2022. The sociodemographic and clinical characteristics of adult epilepsy patients were collected using a self-developed questionnaire, and the data on SPB, stigma and quality of life were collected through the Self-Perceived Burden Scale (SPBS), Kilifi Stigma Scale for Epilepsy (KSSE) and Quality of Life in Epilepsy Inventory-31 (QOLIE-31). Multiple linear regression analysis was used to determine the associated factors influencing SPB in adult epilepsy patients. Results The average score of SPBS for the 143 adult epilepsy patients was 30.77 (SD = 9.06), and 89.5% of them had obvious SPB. The results of the univariate analysis showed that residence, monthly household income, duration of epilepsy, type of medication and electroencephalogram finding were associated with SPB (P < 0.05). In Spearman correlation analysis indicated that SPBS score were positively correlated with KSSE score (r = 0.510, P < 0.05) while negatively correlated with QOLIE-31 score (r = −0.506, P < 0.05). Multiple linear regression analysis revealed that factors such as KSSE, type of medication, residence and electroencephalogram finding accounted for 32.8% of the factors influencing SPB in adult epilepsy patients. Conclusion 89.5% of adult epilepsy patients have varying degrees of SPB, which is associated with high stigma and poor quality of life. Therefore, during the treatment and nursing of adult epilepsy patients, clinical staff should pay attention to the psychological status of patients, help them reduce their psychological burden, and guide them to develop a healthy lifestyle.
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Affiliation(s)
- Binmi Tang
- Xiangya Nursing School, Central South University, Changsha, China
| | - Yaqian Fu
- Xiangya Nursing School, Central South University, Changsha, China
| | - Birong Liu
- Xiangya Nursing School, Central South University, Changsha, China
| | - Qifeng Yi
- Department of Nursing, Third Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Qifeng Yi
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21
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Terman SW, Niznik JD, Slinger G, Otte WM, Braun KPJ, Aubert CE, Kerr WT, Boyd CM, Burke JF. Incidence of and predictors for antiseizure medication gaps in Medicare beneficiaries with epilepsy: a retrospective cohort study. BMC Neurol 2022; 22:328. [PMID: 36050646 PMCID: PMC9434838 DOI: 10.1186/s12883-022-02852-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 08/25/2022] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND For the two-thirds of patients with epilepsy who achieve seizure remission on antiseizure medications (ASMs), patients and clinicians must weigh the pros and cons of long-term ASM treatment. However, little work has evaluated how often ASM discontinuation occurs in practice. We describe the incidence of and predictors for sustained ASM fill gaps to measure discontinuation in individuals potentially eligible for ASM withdrawal. METHODS This was a retrospective cohort of Medicare beneficiaries. We included patients with epilepsy by requiring International Classification of Diseases codes for epilepsy/convulsions plus at least one ASM prescription each year 2014-2016, and no acute visit for epilepsy 2014-2015 (i.e., potentially eligible for ASM discontinuation). The main outcome was the first day of a gap in ASM supply (30, 90, 180, or 360 days with no pills) in 2016-2018. We displayed cumulative incidence functions and identified predictors using Cox regressions. RESULTS Among 21,819 beneficiaries, 5191 (24%) had a 30-day gap, 1753 (8%) had a 90-day gap, 803 (4%) had a 180-day gap, and 381 (2%) had a 360-day gap. Predictors increasing the chance of a 180-day gap included number of unique medications in 2015 (hazard ratio [HR] 1.03 per medication, 95% confidence interval [CI] 1.01-1.05) and epileptologist prescribing physician (≥25% of that physician's visits for epilepsy; HR 2.37, 95% CI 1.39-4.03). Predictors decreasing the chance of a 180-day gap included Medicaid dual eligibility (HR 0.75, 95% CI 0.60-0.95), number of unique ASMs in 2015 (e.g., 2 versus 1: HR 0.37, 95% CI 0.30-0.45), and greater baseline adherence (> 80% versus ≤80% of days in 2015 with ASM pill supply: HR 0.38, 95% CI 0.32-0.44). CONCLUSIONS Sustained ASM gaps were rarer than current guidelines may suggest. Future work should further explore barriers and enablers of ASM discontinuation to understand the optimal discontinuation rate.
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Affiliation(s)
- Samuel W. Terman
- grid.214458.e0000000086837370Department of Neurology, University of Michigan, Ann Arbor, MI 48109 USA
| | - Joshua D. Niznik
- grid.10698.360000000122483208Division of Geriatric Medicine, Center for Aging and Health, School of Medicine, University of North Carolina At Chapel Hill, Chapel Hill, NC 27599 USA ,grid.10698.360000000122483208Division of Pharmaceutical Outcomes and Policy, Eshelman School of Pharmacy, University of North Carolina At Chapel Hill, Chapel Hill, NC 27599 USA
| | - Geertruida Slinger
- grid.5477.10000000120346234Department of Child Neurology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Willem M. Otte
- grid.5477.10000000120346234Department of Child Neurology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Kees P. J. Braun
- grid.5477.10000000120346234Department of Child Neurology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Carole E. Aubert
- grid.5734.50000 0001 0726 5157Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland ,grid.5734.50000 0001 0726 5157Institute of Primary Health Care (BIHAM), University of Bern, Mittelstrasse 43, 3012 Bern, Switzerland
| | - Wesley T. Kerr
- grid.214458.e0000000086837370Department of Neurology, University of Michigan, Ann Arbor, MI 48109 USA
| | - Cynthia M. Boyd
- grid.21107.350000 0001 2171 9311Division of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, MD 21224 USA
| | - James F. Burke
- grid.261331.40000 0001 2285 7943Department of Neurology, the Ohio State University, Columbus, OH 43210 USA
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22
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Ferlazzo E, Giussani G, Gasparini S, Bianchi E, Cianci V, Belcastro V, Cantello R, Strigaro G, Lazzari M, Bianchi A, Guadagni M, Pradella S, La Neve A, Francavilla T, Pilolli N, Banfi P, Turco F, Piccioli M, Polidori L, Anna Cantisani T, Papetti R, Cecconi M, Pupillo E, Davide Arippol E, Enia G, Neri S, Aguglia U, Beghi E. Rapid versus slow withdrawal of antiepileptic monotherapy in two-year seizure-free adults patients with epilepsy (RASLOW) study: A pragmatic multicentre, prospective, randomized, controlled study. Neurol Sci 2022; 43:5133-5141. [PMID: 35648267 DOI: 10.1007/s10072-022-06121-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 05/02/2022] [Indexed: 02/02/2023]
Abstract
PURPOSE To establish whether a slow or a rapid withdrawal of antiepileptic monotherapy influences relapse rate in seizure-free adults with epilepsy and calculates compliance and differences in the severity of relapses, based on the occurrence of status epilepticus, seizure-related injuries, and death. METHODS This is a multicentre, prospective, randomized, open label, non-inferiority trial in people aged 16 + years who were seizure-free for more than 2 years. Patients were randomized to slow withdrawal (160 days) or rapid withdrawal (60 days) and were followed for 12 months. The primary outcome was the probability of a first seizure relapse within the 12-months follow-up. The secondary outcomes included the cumulative probability of relapse at 3, 6, 9, and 12 months. A non-inferiority analysis was performed with non-inferiority margin of - 0.15 for the difference between the probabilities of seizure recurrence in slow versus rapid withdrawal. RESULTS The sample comprised 48 patients, 25 randomized to slow withdrawal and 23 to rapid withdrawal. Median follow-up was 11.9 months. In the intention-to-treat population, 3 patients in the slow-withdrawal group and 1 in the rapid withdrawal group experienced seizure relapses. The corresponding probabilities of seizure recurrence were 0.12 for slow withdrawal and 0.04 for rapid withdrawal, giving a difference of 0.08 (95% CI - 0.12; 0.27), which is entirely above the non-inferiority margin. No patients developed status epilepticus and seizure-related injuries or died. Risks were similar in the Per-Protocol population. CONCLUSIONS Seizure-relapse rate after drug discontinuation is lower than in other reports, without complications and unrelated to the duration of tapering.
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Affiliation(s)
- Edoardo Ferlazzo
- Department of Medical and Surgical Sciences, "Magna Græcia" University of Catanzaro, Catanzaro, Italy.,Regional Epilepsy Centre, Great Metropolitan Hospital, Via Melacrino, 89100, Reggio Calabria, Italy
| | - Giorgia Giussani
- Laboratory of Neurological Disorders, Department of Neuroscience, Istituto Di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Sara Gasparini
- Department of Medical and Surgical Sciences, "Magna Græcia" University of Catanzaro, Catanzaro, Italy.,Regional Epilepsy Centre, Great Metropolitan Hospital, Via Melacrino, 89100, Reggio Calabria, Italy
| | - Elisa Bianchi
- Laboratory of Neurological Disorders, Department of Neuroscience, Istituto Di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Vittoria Cianci
- Regional Epilepsy Centre, Great Metropolitan Hospital, Via Melacrino, 89100, Reggio Calabria, Italy
| | | | - Roberto Cantello
- Neurology Unit, Department of Translational Medicine, University of Piemonte Orientale, Azienda Ospedaliero-Universitaria "Maggiore Della Carità", Novara, Italy
| | - Gionata Strigaro
- Neurology Unit, Department of Translational Medicine, University of Piemonte Orientale, Azienda Ospedaliero-Universitaria "Maggiore Della Carità", Novara, Italy
| | - Matilde Lazzari
- Neurology Unit, Department of Translational Medicine, University of Piemonte Orientale, Azienda Ospedaliero-Universitaria "Maggiore Della Carità", Novara, Italy
| | - Amedeo Bianchi
- Department of Neurology and Epilepsy Centre, San Donato Hospital, Arezzo, Italy
| | - Martina Guadagni
- Department of Neurology and Epilepsy Centre, San Donato Hospital, Arezzo, Italy
| | - Silvia Pradella
- Department of Neurology and Epilepsy Centre, San Donato Hospital, Arezzo, Italy
| | - Angela La Neve
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari, Bari, Italy
| | - Teresa Francavilla
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari, Bari, Italy
| | - Nicola Pilolli
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari, Bari, Italy
| | - Paola Banfi
- Department of Emergency, Medicine Epilepsy Center, Neurology Unit, Circolo Hospital, Varese, Italy
| | - Francesco Turco
- Department of Emergency, Medicine Epilepsy Center, Neurology Unit, Circolo Hospital, Varese, Italy
| | - Marta Piccioli
- UOC Neurology, PO San Filippo Neri, ASL Roma 1, Rome, Italy
| | - Luigi Polidori
- UOC Neurology, PO San Filippo Neri, ASL Roma 1, Rome, Italy
| | | | | | | | - Elisabetta Pupillo
- Laboratory of Neurological Disorders, Department of Neuroscience, Istituto Di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Emilio Davide Arippol
- Laboratory of Neurological Disorders, Department of Neuroscience, Istituto Di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Gabriele Enia
- Laboratory of Neurological Disorders, Department of Neuroscience, Istituto Di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Sabrina Neri
- Department of Medical and Surgical Sciences, "Magna Græcia" University of Catanzaro, Catanzaro, Italy.,Regional Epilepsy Centre, Great Metropolitan Hospital, Via Melacrino, 89100, Reggio Calabria, Italy
| | - Umberto Aguglia
- Department of Medical and Surgical Sciences, "Magna Græcia" University of Catanzaro, Catanzaro, Italy. .,Regional Epilepsy Centre, Great Metropolitan Hospital, Via Melacrino, 89100, Reggio Calabria, Italy.
| | - Ettore Beghi
- Laboratory of Neurological Disorders, Department of Neuroscience, Istituto Di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
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Gupta A, Kumar K. Antiseizure Medication Withdrawal in Seizure-Free Patients: What is New for the Pediatrician? Indian Pediatr 2022. [DOI: 10.1007/s13312-022-2580-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Sharma S, Chen Z, Rychkova M, Dunne J, Lee J, Lawn N, Kwan P. Risk factors and consequences of self-discontinuation of treatment by patients with newly diagnosed epilepsy. Epilepsy Behav 2022; 131:108664. [PMID: 35483203 DOI: 10.1016/j.yebeh.2022.108664] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 03/04/2022] [Accepted: 03/06/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Patients with epilepsy not uncommonly self-discontinue treatment with antiseizure medications (ASM). The rate, reasons for this, and consequences have not been well studied. METHODS We analyzed self-discontinuation of ASM treatment in patients with recently diagnosed epilepsy via review of clinic letters and hospital correspondence in a prospective cohort of first seizure patients. RESULTS We studied 489 patients with newly diagnosed and treated epilepsy (median age 41, range 14-88, 62% male), followed up for a median duration of 3.0 years (interquartile range [IQR]: 1.2-6.0). Seventy eight (16.0%) self-discontinued ASM therapy after a median treatment duration of 1.4 years (IQR: 0.4-2.9), and after a median duration of seizure freedom of 11.8 months (IQR: 4.6-31.8). Patients commonly self-discontinued treatment due to adverse effects (41%), perception that treatment was no longer required (35%), and planned or current pregnancy (12%). Patients who self-discontinued were less likely to have epileptogenic lesions on neuroimaging (hazard ratio [HR] = 0.44, 95% confidence interval [CI]: 0.23-0.83), presentation with seizure clusters (HR = 0.32, 95% CI: 0.14-0.69) and presentation with tonic-clonic seizures (HR = 0.36, 95% CI: 0.19-0.70). Patients with shorter interval since the last seizure (HR = 0.76, 95% CI: 0.66-0.86) were more likely to self-discontinue treatment. Sleep deprivation prior to seizures before diagnosis (HR = 1.80, 95% CI: 1.05-3.09) and significant alcohol or illicit drug use (HR = 2.35, 95% CI: 1.20-4.59) were also associated with higher rates of discontinuation. After discontinuation, 51 patients (65%) experienced seizure recurrence, and 43 (84%) restarted treatment. Twenty two patients (28%) experienced a seizure-related injury after treatment discontinuation. SIGNIFICANCE Self-initiated discontinuation of ASM treatment was not uncommon in patients with newly treated epilepsy. Reasons for discontinuation highlight areas for improved discussion with patients, including the chronicity of epilepsy and management strategies for current or potential adverse effects.
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Affiliation(s)
- Sameer Sharma
- Department of Neurosciences, Central Clinical School, Monash University, Alfred Hospital, 99 Commercial Road, Melbourne 3004, Australia
| | - Zhibin Chen
- Department of Neurosciences, Central Clinical School, Monash University, Alfred Hospital, 99 Commercial Road, Melbourne 3004, Australia; Department of Medicine, The University of Melbourne, Royal Melbourne Hospital, 300 Grattan St, Parkville, Melbourne 3050, Australia; School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne 3004, Australia
| | - Maria Rychkova
- Department of Medicine, The University of Melbourne, Royal Melbourne Hospital, 300 Grattan St, Parkville, Melbourne 3050, Australia
| | - John Dunne
- School of Medicine, Royal Perth Hospital Unit, University of Western Australia, Victoria Square, Perth 6000, Australia; WA Adult Epilepsy Service, Hospital Avenue, Nedlands, Western Australia 6009, Australia
| | - Judy Lee
- WA Adult Epilepsy Service, Hospital Avenue, Nedlands, Western Australia 6009, Australia
| | - Nicholas Lawn
- WA Adult Epilepsy Service, Hospital Avenue, Nedlands, Western Australia 6009, Australia
| | - Patrick Kwan
- Department of Neurosciences, Central Clinical School, Monash University, Alfred Hospital, 99 Commercial Road, Melbourne 3004, Australia; Department of Medicine, The University of Melbourne, Royal Melbourne Hospital, 300 Grattan St, Parkville, Melbourne 3050, Australia; School of Public Health and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne 3004, Australia.
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Terman SW, Wang C, Wang L, Braun KPJ, Otte WM, Slinger G, Kerr WT, Lossius MI, Bonnett L, Burke JF, Marson A. Reappraisal of the Medical Research Council Antiepileptic Drug Withdrawal Study: contamination‐adjusted and dose‐response re‐analysis. Epilepsia 2022; 63:1724-1735. [PMID: 35490396 PMCID: PMC9283317 DOI: 10.1111/epi.17273] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/27/2022] [Accepted: 04/27/2022] [Indexed: 11/28/2022]
Abstract
Objective The 1991 Medical Research Council (MRC) Study compared seizure relapse for seizure‐free patients randomized to withdraw vs continue of antiseizure medications (ASMs). We re‐analyzed this trial to account for crossover between arms using contamination‐adjusted intention to treat (CA ITT) methods, to explore dose‐response curves, and to validate predictions against external data. ITT assesses the effect of being randomized to withdraw, as‐treated analysis assesses the confounded effect of withdrawing, but CA ITT assesses the unconfounded effect of actually withdrawing. Methods CA ITT involves two stages. First, we used randomized arm to predict whether patients withdrew their ASM (logistic) or total daily ASM dose (linear). Second, we used those values to predict seizure occurrence (logistic). Results The trial randomized 503 patients to withdraw and 501 patients to continue ASMs. We found that 316 of 376 patients (88%) who were randomized to withdraw decreased their dose at every pre‐seizure visit, compared with 35 of 424 (8%) who were randomized to continue (p < .01). Adjusted odds ratios of a 2‐year seizure for those who withdrew vs those who did not was 1.3 (95% confidence interval [CI] 0.9–1.9) in the as‐treated analysis, 2.5 (95% CI 1.9–3.4) comparing those randomized to withdraw vs continue for ITT, and 3.1 (95% CI 2.1–4.5) for CA ITT. Probabilities (withdrawal vs continue) were 28% vs 24% (as‐treated), 40% vs 22% (ITT), and 43% vs 21% (CA ITT). Differences between ITT and CA ITT were greater when varying the predictor (reaching zero ASMs) or outcome (1‐year seizures). As‐treated dose‐response curves demonstrated little to no effects, but larger effects in CA ITT analysis. MRC data overpredicted risk in Lossius data, with moderate discrimination (areas under the curve ~0.70). Significance CA ITT results (the effect of actually withdrawing ASMs on seizures) were slightly greater than ITT effects (the effect of recommend withdrawing ASMs on seizures). How these findings affect clinical practice must be individualized.
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Affiliation(s)
- Samuel W Terman
- University of Michigan Department of Neurology Ann Arbor MI 48109 USA
| | - Chang Wang
- University of Michigan School of Public Health Department of Biostatistics Ann Arbor MI 48109 USA
| | - Lu Wang
- University of Michigan School of Public Health Department of Biostatistics Ann Arbor MI 48109 USA
| | - Kees PJ Braun
- Utrecht University Department of Child Neurology University Medical Center Utrecht member of EpiCARE The Netherlands
| | - Willem M Otte
- Utrecht University Department of Child Neurology University Medical Center Utrecht member of EpiCARE The Netherlands
| | - Geertruida Slinger
- Utrecht University Department of Child Neurology University Medical Center Utrecht member of EpiCARE The Netherlands
| | - Wesley T Kerr
- University of Michigan Department of Neurology Ann Arbor MI 48109 USA
| | - Morten I Lossius
- Oslo University Hospital National Center for Epilepsy Oslo Norway
- University of Oslo Institute of Clinical Medicine
| | - Laura Bonnett
- University of Liverpool Department of Health Data Science Block B, Waterhouse Building, Brownlow Hill Liverpool L69 3GL United Kingdom
| | - James F Burke
- the Ohio State University Department of Neurology Columbus 43210
| | - Anthony Marson
- University of Liverpool Department of Pharmacology and Therapeutics Liverpool United Kingdom
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Lin LC, Chang MY, Chiu YH, Chiang CT, Wu RC, Yang RC, Ouyang CS. Prediction of seizure recurrence using electroencephalogram analysis with multiscale deep neural networks before withdrawal of antiepileptic drugs. Pediatr Neonatol 2022; 63:283-290. [PMID: 35367151 DOI: 10.1016/j.pedneo.2021.12.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 12/08/2021] [Accepted: 12/26/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The decision to continue or discontinue antiepileptic drug (AED) treatment in patients who are seizure free for a prolonged time is critical. Studies have used certain risk factors or electroencephalogram (EEG) findings to predict seizure recurrence after the withdrawal of AEDs. However, applicable biomarkers to guide the withdrawal of AEDs are lacking. METHODS In this study, we used EEG analysis based on multiscale deep neural networks (MSDNN) to establish a method for predicting seizure recurrence after the withdrawal of AEDs. A total of 60 patients with epilepsy were divided into two groups (30 in the recurrence group and 30 in the non-recurrence group). All patients were seizure free for at least 2 years. Before AED withdrawal, an EEG was performed for each patient, which showed no epileptiform discharges. These EEG recordings were classified using MSDNN. RESULTS We found that the performance indices of classification between recurrence and non-recurrence groups had a mean sensitivity, mean specificity, mean accuracy, and mean area under the receiver operating characteristic curve of 74.23%, 75.83%, 74.66%, and 82.66%, respectively. CONCLUSION Our proposed method is a promising tool to help physicians to predict seizure recurrence after AED withdrawal among seizure-free patients.
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Affiliation(s)
- Lung-Chang Lin
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City, Taiwan; Department of Pediatrics, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | - Ming-Yuh Chang
- Departments of Pediatrics, Changhua Christian Hospital, Changhua, Taiwan
| | - Yi-Hung Chiu
- Department of Information Engineering, I-Shou University, Kaohsiung City, Taiwan
| | - Ching-Tai Chiang
- Department of Computer and Communication, National Pingtung University, Pingtung City, Taiwan
| | - Rong-Ching Wu
- Department of Electrical Engineering, I-Shou University, Kaohsiung City, Taiwan
| | - Rei-Cheng Yang
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City, Taiwan; Department of Pediatrics, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan.
| | - Chen-Sen Ouyang
- Department of Information Engineering, I-Shou University, Kaohsiung City, Taiwan.
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Terman SW, Kerr WT, Aubert CE, Hill CE, Marcum ZA, Burke JF. Adherence to Antiseizure vs Other Medications Among US Medicare Beneficiaries With and Without Epilepsy. Neurology 2022; 98:e427-e436. [PMID: 34893556 PMCID: PMC8793102 DOI: 10.1212/wnl.0000000000013119] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 11/16/2021] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND AND OBJECTIVE The objectives of this study were to compare adherence to antiseizure medications (ASMs) vs non-ASMs among individuals with epilepsy, to assess the degree to which variation in adherence is due to differences between individuals vs between medication classes among individuals with epilepsy, and to compare adherence in individuals with vs without epilepsy. METHODS This was a retrospective cohort study using Medicare. We included beneficiaries with epilepsy (≥1 ASM, plus ICD-9-CM diagnostic codes) and a 20% random sample without epilepsy. Adherence for each medication class was measured by the proportion of days covered (PDC) in 2013 to 2015. We used Spearman correlation coefficients, Cohen κ statistics, and multilevel logistic regressions. RESULTS There were 83,819 beneficiaries with epilepsy. Spearman correlation coefficients between ASM PDCs and each of the 5 non-ASM PDCs ranged from 0.44 to 0.50; Cohen κ ranged from 0.33 to 0.38; and within-person differences between the PDC of each ASM minus the PDC of each non-ASM were all statistically significant (p < 0.01), although median differences were all very close to 0. Fifty-four percent of variation in adherence across medications was due to differences between individuals. Adjusted predicted probabilities of adherence were as follows: ASMs 74% (95% confidence interval [CI] 73%-74%), proton pump inhibitors 74% (95% CI 74%-74%), antihypertensives 77% (95% CI 77%-78%), selective serotonin reuptake inhibitors 77% (95% CI 77%-78%), statins 78% (95% CI 78%-79%), and levothyroxine 82% (95% CI 81%-82%). Adjusted predicted probabilities of adherence to non-ASMs were 80% (95% CI 80%-81%) for beneficiaries with epilepsy vs 77% (95% CI 77%-77%) for beneficiaries without epilepsy. DISCUSSION Among individuals with epilepsy, ASM adherence and non-ASM adherence were moderately correlated, half of the variation in adherence was due to between-person rather than between-medication differences, adjusted adherence was slightly lower for ASMs than several non-ASMs, and epilepsy was associated with a quite small increase in adherence to non-ASMs. Nonadherence to ASMs may provide an important cue to the clinician to inquire about adherence to other potentially life-prolonging medications as well. Although efforts should focus on improving ASM adherence, patient-level rather than purely medication-specific behaviors are also critical to consider when developing interventions to optimize adherence.
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Affiliation(s)
- Samuel W Terman
- From the Department of Neurology (S.W.T., W.T.K., C.E.H., J.F.B.), and Institute for Healthcare Policy and Innovation (S.W.T., C.E.H., J.F.B.), University of Michigan, Ann Arbor; Department of Neurology (W.T.K.), David Geffen School of Medicine at UCLA, Los Angeles, CA; Department of General Internal Medicine (C.E.A.), Bern University Hospital, and Institute of Primary Health Care (BIHAM) (C.E.A.), University of Bern, Switzerland; and Department of Pharmacy (Z.A.M.), School of Pharmacy, University of Washington, Seattle.
| | - Wesley T Kerr
- From the Department of Neurology (S.W.T., W.T.K., C.E.H., J.F.B.), and Institute for Healthcare Policy and Innovation (S.W.T., C.E.H., J.F.B.), University of Michigan, Ann Arbor; Department of Neurology (W.T.K.), David Geffen School of Medicine at UCLA, Los Angeles, CA; Department of General Internal Medicine (C.E.A.), Bern University Hospital, and Institute of Primary Health Care (BIHAM) (C.E.A.), University of Bern, Switzerland; and Department of Pharmacy (Z.A.M.), School of Pharmacy, University of Washington, Seattle
| | - Carole E Aubert
- From the Department of Neurology (S.W.T., W.T.K., C.E.H., J.F.B.), and Institute for Healthcare Policy and Innovation (S.W.T., C.E.H., J.F.B.), University of Michigan, Ann Arbor; Department of Neurology (W.T.K.), David Geffen School of Medicine at UCLA, Los Angeles, CA; Department of General Internal Medicine (C.E.A.), Bern University Hospital, and Institute of Primary Health Care (BIHAM) (C.E.A.), University of Bern, Switzerland; and Department of Pharmacy (Z.A.M.), School of Pharmacy, University of Washington, Seattle
| | - Chloe E Hill
- From the Department of Neurology (S.W.T., W.T.K., C.E.H., J.F.B.), and Institute for Healthcare Policy and Innovation (S.W.T., C.E.H., J.F.B.), University of Michigan, Ann Arbor; Department of Neurology (W.T.K.), David Geffen School of Medicine at UCLA, Los Angeles, CA; Department of General Internal Medicine (C.E.A.), Bern University Hospital, and Institute of Primary Health Care (BIHAM) (C.E.A.), University of Bern, Switzerland; and Department of Pharmacy (Z.A.M.), School of Pharmacy, University of Washington, Seattle
| | - Zachary A Marcum
- From the Department of Neurology (S.W.T., W.T.K., C.E.H., J.F.B.), and Institute for Healthcare Policy and Innovation (S.W.T., C.E.H., J.F.B.), University of Michigan, Ann Arbor; Department of Neurology (W.T.K.), David Geffen School of Medicine at UCLA, Los Angeles, CA; Department of General Internal Medicine (C.E.A.), Bern University Hospital, and Institute of Primary Health Care (BIHAM) (C.E.A.), University of Bern, Switzerland; and Department of Pharmacy (Z.A.M.), School of Pharmacy, University of Washington, Seattle
| | - James F Burke
- From the Department of Neurology (S.W.T., W.T.K., C.E.H., J.F.B.), and Institute for Healthcare Policy and Innovation (S.W.T., C.E.H., J.F.B.), University of Michigan, Ann Arbor; Department of Neurology (W.T.K.), David Geffen School of Medicine at UCLA, Los Angeles, CA; Department of General Internal Medicine (C.E.A.), Bern University Hospital, and Institute of Primary Health Care (BIHAM) (C.E.A.), University of Bern, Switzerland; and Department of Pharmacy (Z.A.M.), School of Pharmacy, University of Washington, Seattle
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Abstract
BACKGROUND The ideal objective of treating a person with epilepsy is to induce remission (free of seizures for some time) using antiepileptic drugs (AEDs) and withdraw the AEDs without causing seizure recurrence. Prolonged usage of AEDs may have long-term adverse effects. Hence, when a person with epilepsy is in remission, it is logical to attempt to discontinue the medication. The timing of withdrawal and the mode of withdrawal arise while contemplating withdrawal of AEDs. This review examines the evidence for the rate of withdrawal of AEDs (whether rapid or slow tapering) and its effect on seizure recurrence. This is an updated version of the Cochrane Review previously published in 2020. OBJECTIVES To quantify risk of seizure recurrence after rapid (tapering period of three months or less) or slow (tapering period of more than three months) discontinuation of antiepileptic drugs in adults and children with epilepsy who are in remission, and to assess which variables modify the risk of seizure recurrence. SEARCH METHODS For the latest update, on 8 November 2021, we searched: Cochrane Register of Studies (CRS Web), MEDLINE (Ovid), and SCOPUS. There were no language restrictions. CRS Web includes randomized or quasi-randomized, controlled trials from PubMed, Embase, ClinicalTrials.gov, the World Health Organization International Clinical Trials Registry Platform (ICTRP), CENTRAL, and the Specialized Registers of Cochrane Review Groups including Epilepsy. SELECTION CRITERIA Randomized controlled trials that evaluated withdrawal of AEDs in a rapid or slow tapering after varying periods of seizure control in people with epilepsy. DATA COLLECTION AND ANALYSIS Two review authors independently assessed the trials for inclusion and extracted the data. The outcomes assessed included seizure freedom after one, two, or five years of AED withdrawal; time to recurrence of seizure following withdrawal; occurrence of status epilepticus; mortality; morbidity due to seizure, such as injuries, fractures, and aspiration pneumonia; and quality of life (assessed by validated scale). MAIN RESULTS There are two included studies in this review. One study randomized 57 children with epilepsy with seizure freedom for at least two years to taper down the AED over one or six months. The study was not blinded and there were no details of randomization. Over the period of 54 months of follow-up, 20/30 participants in the one-month group remained seizure-free compared to 15/27 participants in the six-month group (no evidence of a difference). There was no information on time of seizure recurrence for each group to allow a comparison. The other study involved 149 children. There was a non-significant trend towards a lower risk of seizure recurrence after one year of AED withdrawal in participants allocated to slow tapering (risk ratio (RR) 0.76, 95% confidence interval (CI) 0.58 to 1.01; P = 0.06; very low-certainty evidence). At the end of two years, 30 participants were seizure free in the rapid-tapering group and 29 participants in the slow-tapering group (RR 0.87, 95% CI 0.58 to 1.29; P = 0.48; very low-certainty evidence). At the end of five years, 10 participants were seizure free in the rapid-tapering group and six participants in the slow-tapering group (RR 1.40, 95% CI 0.54 to 3.65; P = 0.49; very low-certainty evidence). There were no data for the other outcomes. Due to the methodological heterogeneity and the difference in the duration of tapering, we did not perform a quantitative synthesis of these studies. Currently, one Italian trial is ongoing that is investigating if a slow or a rapid withdrawal schedule of AEDs influences return of seizures (relapse) in adults with focal or generalized epilepsy who have been seizure free for at least two years (no preliminary results available). AUTHORS' CONCLUSIONS In view of methodological deficiencies, and small sample size of the two included studies, we cannot draw any reliable conclusions regarding the optimal rate of tapering of AEDs. Using GRADE, we assessed the certainty of the evidence as very low for outcomes for which data were available. We judged both studies to be at an overall high risk of bias. Further studies are needed in adults and children to investigate the optimal rate of withdrawal of AEDs and to study the effects of variables such as seizure types, aetiology, intellectual disability, electroencephalography abnormalities, presence of neurological deficits, and other comorbidities on the rate of tapering.
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Affiliation(s)
| | | | - Francesco Brigo
- Department of Neurology, Hospital of Merano (SABES-ASDAA), Merano, Italy
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Tassi L, Specchio N, Mecarelli O, Tinuper P, Vigevano F, Perucca E. The 50th anniversary of the Italian League Against Epilepsy (Lega Italiana Contro l’Epilessia). Epilepsy Behav Rep 2022; 19:100553. [PMID: 35664663 PMCID: PMC9157453 DOI: 10.1016/j.ebr.2022.100553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 05/11/2022] [Accepted: 05/15/2022] [Indexed: 11/17/2022] Open
Abstract
We describe the 50-year history of the Italian League Against Epilepsy (LICE). LICE promotes high-quality epilepsy care, education and research into epilepsy. LICE maintains close relations with ILAE and other professional societies.
This article was prepared to outline the article collection submitted on behalf of Lega Italiana Contro l’Epilepsia, or LICE, for the 50th anniversary of the founding of the ILAE Italian Chapter, and provides a brief summary of the history, with its landmark achievements and challenges. LICE is a multidisciplinary, inclusive, educational, informative and multifaceted organization. Initially in 1955 and then formally in 1972, LICE was born in Milano, with the mission to devote itself to people suffering with epilepsy and by promoting appropriate treatment and care, integration into society, to promote and pursue all kinds of activities designed to achieve those aims. The LICE is currently composed of more than 1000 members including neurologists, pediatric neurologists, neurosurgeons, neurophysiologists, and neuropsychologists who function throughout Italy dealing mainly or exclusively with the diagnosis and treatment of people with epilepsy.
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Liang X, Yu N, Zhang YF, Gu L, Di Q. Prognostic implications of persistent interictal epileptiform discharges on antiseizure medication withdrawal in patients with epilepsy in five-year remission. Seizure 2021; 94:100-106. [PMID: 34883461 DOI: 10.1016/j.seizure.2021.11.009] [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: 07/19/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 10/19/2022] Open
Abstract
PURPOSE Whether patients with epilepsy in long-term remission and interictal epileptiform discharges (IEDs) can stop antiseizure medication (ASM) remains a challenging topic even though multiple studies have investigated ASM withdrawal. This study aimed to estimate seizure relapse and its risk factors in patients with epilepsy in five-year remission and persistent IEDs. METHODS Patients with epilepsy and persistent IEDs were prospectively recruited from the Affiliated Nanjing Brain Hospital of Nanjing Medical University from Dec.1, 2010 to Dec.30, 2019. All enrolled patients achieved seizure remission for over five years and were divided into the ASM withdrawal and continuous treatment groups according to their personal preference. Seizure outcomes and 24 h video electroencephalogram findings were obtained through clinical visits or telephone interviews every three months until March 31, 2021. The cumulative recurrence rate and its diversity between the ASM withdrawal and continuous treatment groups were tested using Kaplan-Meier analysis. Multivariate Cox regression analysis was performed to explore the independent predictors for seizure recurrence. Relapsed patients were further monitored for their seizure control and prognosis. RESULTS A total of 83 patients with epilepsy in five-year remission and persistent IEDs were enrolled in this study, including 41 (49.4%) in the ASM withdrawal group and 42 (50.6%) in the continuous ASM treatment group. During the follow-up with a median time of 36.8 months (range from 18.7 to 104.6 months), the seizure relapse in off-medication patients (43.9%, 18/41) was higher than that in on-medication patients (21.4%, 9/42; P = 0.031). In the multivariate analysis model, independent predictors for seizure recurrence were structural-metabolic epilepsy or unknown cause (HR = 6.185, 95% CI 1.166-32.805) and multiple seizure types (HR = 2.807, 95% CI 1.051-7.502). ASM withdrawal was not found to be an independent risk factor for seizure recurrence. Of 27 patients with seizure recurrence, 25 were given reinstitution or continuous ASM therapy, whereas two chose sustained observation without medication. At the end of the follow-up, 70.4% (19/27) of recurrence patients were completely free from seizures for at least one year again, and only one patient developed refractory epilepsy. CONCLUSION For patients with epilepsy in five-year remission and persistent IEDs, drug withdrawal may be a rational choice after the individualized assessment of benefits and risks. Furthermore, the independent risk factors for the seizure relapse were structural-metabolic epilepsy or an unknown cause, and multiple seizure types. Finally, patients with epilepsy relapsing after ASM withdrawal could achieve seizure remission again after ASM retreatment.
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Affiliation(s)
- Xue Liang
- The Affiliated Nanjing Brain Hospital of Nanjing Medical University, Department of Neurology, 210029, Nanjing, China
| | - Nian Yu
- The Affiliated Nanjing Brain Hospital of Nanjing Medical University, Department of Neurology, 210029, Nanjing, China
| | - Yan-Fang Zhang
- The Affiliated Nanjing Brain Hospital of Nanjing Medical University, Department of Neurology, 210029, Nanjing, China
| | - Li Gu
- The Affiliated Nanjing Brain Hospital of Nanjing Medical University, Department of Neurology, 210029, Nanjing, China
| | - Qing Di
- The Affiliated Nanjing Brain Hospital of Nanjing Medical University, Department of Neurology, 210029, Nanjing, China.
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Pesce A, Armocida D, Paglia F, Palmieri M, Frati A, D'Andrea G, Salvati M, Santoro A. IDH Wild-type Glioblastoma Presenting with Seizure: Clinical Specificity, and Oncologic and Surgical Outcomes. J Neurol Surg A Cent Eur Neurosurg 2021; 83:351-360. [PMID: 34794192 DOI: 10.1055/s-0041-1735515] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Glioblastoma (GBM) is the most common and aggressive primary brain neoplasia in adults. Seizure is a common manifestation in GBM. Up to 25 to 60% of patients with GBM have seizures. We aim to summarize all the relevant clinical, surgical, radiologic, and molecular features of a cohort of patients suffering from GBM-related epilepsy and measure the outcome, to understand the possible existence of a clinical/phenotypical specificity of this subgroup of patients. METHODS We retrospectively analyzed a cohort of 177 patients affected by isocitrate dehydrogenase wild-type (IDH-WT) GBM; 49 patients presented seizure at onset (SaO) and 128 were seizure free (SF). We investigated the relationship between seizures and other prognostic factors of GBMs. RESULTS A statistically significant association between the location of the lesions in the parietal lobe and seizures was observed. The left side was more commonly affected. Interestingly, there was a statistical relationship between tumors involving the subventricular zone (SVZ) and SaO patients. The tumors were also smaller on average at diagnosis, and generalized SaOs were associated with longer overall survival. CONCLUSIONS The typical patient with IDH-WT GBM with SaO is a young (<55 year) male without a history of headache. The lesion is typically small to medium in size and located in the temporoparietal dominant lobe, with a high tendency to involve the SVZ.
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Affiliation(s)
| | - Daniele Armocida
- Division of Neurosurgery, Department of Human Neurosciences, "Sapienza" University, Rome, Italy
| | - Francesco Paglia
- Division of Neurosurgery, Department of Human Neurosciences, "Sapienza" University, Rome, Italy
| | - Mauro Palmieri
- Division of Neurosurgery, Department of Human Neurosciences, "Sapienza" University, Rome, Italy
| | - Alessandro Frati
- Division of Neurosurgery, Department of Human Neurosciences, "Sapienza" University, Rome, Italy.,IRCCS "Neuromed" Pozzilli (IS), Italy
| | | | - Maurizio Salvati
- IRCCS "Neuromed" Pozzilli (IS), Italy.,Department of Mental and Neurological, Dental and Sensory Organs Health, Tor Vergata University, Rome Italy
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Li N, Li J, Chen Y, Chu C, Lin W. Treatment Outcome and Risk Factors of Adult Newly Diagnosed Epilepsy: A Prospective Hospital-Based Study in Northeast China. Front Neurol 2021; 12:747958. [PMID: 34777218 PMCID: PMC8581653 DOI: 10.3389/fneur.2021.747958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/06/2021] [Indexed: 12/19/2022] Open
Abstract
Objective: The study was conducted to summarize the treatment outcomes of newly diagnosed epilepsy (NDE) and analyse the risk factors for refractory epilepsy (RE) in Northeast China. Methods: A total of 466 adult patients with NDE were consecutively enrolled in this programme. Clinical data were collected at baseline and each follow-up. Several scales concerning recognition and mood were also completed at the first visit. Results: Seizure-free status was achieved by 52% (n = 244) of the patients; however, 15% (n = 68) manifested RE. A total of 286 (61%) patients continued with the first ASM as monotherapy, among which 186 (40%) patients became seizure-free. Fifteen (22%) patients with RE became seizure-free following ASM adjustment and 34 patients (14%) had breakthrough seizures after being classified as seizure-free. One patient developed RE after attaining seizure-free status. Breakthrough seizures during the first expected interictal interval [Odds ratio (OR) = 5.81, 95% CI: 2.70–12.50], high seizure frequency at baseline (OR = 1.24, 95% CI: 1.04–1.49), younger age of onset (OR = 1.42, 95% CI: 1.12–1.79), and male sex (OR = 2.64, 95% CI: 1.26–5.53) were risk factors for RE. Significance: Treatment outcomes of the majority of NDE cases are good. New risk factors could help physicians more promptly and accurately identify patients who are likely to develop RE. Seizure-free state is not long enough to commence the withdrawal of ASMs. RE is not permanent and seizure-free may be achieved subsequently by appropriate drug adjustment.
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Affiliation(s)
- Nan Li
- DDepartment of Neurology, The First Hospital of Jilin University, Changchun, China
| | - Jing Li
- DDepartment of Neurology, The First Hospital of Jilin University, Changchun, China
| | - Yanyan Chen
- DDepartment of Neurology, The First Hospital of Jilin University, Changchun, China.,Department of Neuroelectrophysiology, Changchun Six Hospital, Changchun, China
| | - Chaojia Chu
- DDepartment of Neurology, The First Hospital of Jilin University, Changchun, China
| | - Weihong Lin
- DDepartment of Neurology, The First Hospital of Jilin University, Changchun, China
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Seneviratne U, Cook M, D'Souza W. Brainwaves beyond diagnosis: Wider applications of electroencephalography in idiopathic generalized epilepsy. Epilepsia 2021; 63:22-41. [PMID: 34755907 DOI: 10.1111/epi.17119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 11/30/2022]
Abstract
Electroencephalography (EEG) has long been used as a versatile and noninvasive diagnostic tool in epilepsy. With the advent of digital EEG, more advanced applications of EEG have emerged. Compared with technologically advanced practice in focal epilepsies, the utilization of EEG in idiopathic generalized epilepsy (IGE) has been lagging, often restricted to a simple diagnostic tool. In this narrative review, we provide an overview of broader applications of EEG beyond this narrow scope, discussing how the current clinical and research applications of EEG may potentially be extended to IGE. The current literature, although limited, suggests that EEG can be used in syndromic classification, guiding antiseizure medication therapy, predicting prognosis, unraveling biorhythms, and investigating functional brain connectivity of IGE. We emphasize the need for longer recordings, particularly 24-h ambulatory EEG, to capture discharges reflecting circadian and sleep-wake cycle-associated variations for wider EEG applications in IGE. Finally, we highlight the challenges and limitations of the current body of literature and suggest future directions to encourage and enhance more extensive applications of this potent tool.
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Affiliation(s)
- Udaya Seneviratne
- Department of Neuroscience, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia.,Department of Neuroscience, Monash Medical Centre, Melbourne, Victoria, Australia
| | - Mark Cook
- Department of Neuroscience, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Wendyl D'Souza
- Department of Neuroscience, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia
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Terman SW, Kerr WT, Marcum ZA, Wang L, Burke JF. Antiseizure medication adherence trajectories in Medicare beneficiaries with newly treated epilepsy. Epilepsia 2021; 62:2778-2789. [PMID: 34462911 PMCID: PMC8563423 DOI: 10.1111/epi.17051] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/11/2021] [Accepted: 08/13/2021] [Indexed: 01/23/2023]
Abstract
OBJECTIVE This study was undertaken to characterize trajectories of antiseizure medication (ASM) adherence in adults with newly treated epilepsy and to determine predictors of trajectories. METHODS This was a retrospective cohort study using Medicare. We included beneficiaries with newly treated epilepsy (one or more ASM and none in the preceding 2 years, plus International Classification of Diseases codes) in 2010-2013. We calculated the proportion of days covered (proportion of total days with any ASM pill supply) for 8 quarters or until death. Group-based trajectory models characterized and determined predictors of trajectories. RESULTS We included 24 923 beneficiaries. Models identified four groups: early adherent (60%), early nonadherent (18%), late adherent (11%), and late nonadherent (11%). Numerous predictors were associated with being in the early nonadherent versus early adherent group: non-White race (e.g., Black, odds ratio [OR] = 1.7, 95% confidence interval [CI] = 1.5-1.8), region (e.g., South vs. Northeast: OR = 1.2, 95% CI = 1.1-1.4), and once daily initial medication (OR = 1.1, 95% CI = 1.0-1.3). Predictors associated with decreased odds of being in the early nonadherent group included older age (OR = .9 per decade, 95% CI = .9-.9), female sex (OR = .9, 95% CI = .8-1.0), full Medicaid eligibility (OR = .6, 95% CI = .4-.8), neurologist visit (OR = .6, 95% CI = .6-.7), and initial older generation ASM (OR = .6, 95% CI = .6-.7). SIGNIFICANCE We identified four ASM adherence trajectories in individuals with newly treated epilepsy. Whereas risk factors for early nonadherence such as race or geographic region are nonmodifiable, our work highlighted a modifiable risk factor for early nonadherence: lacking a neurologist. These data may guide future interventions aimed at improving ASM adherence, in terms of both timing and target populations.
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Affiliation(s)
- Samuel W. Terman
- Department of Neurology, University of Michigan,, Ann Arbor, Michigan, USA
- University of Michigan Institute for Healthcare Policy and Innovation, Ann Arbor, Michigan, USA
| | - Wesley T. Kerr
- Department of Neurology, University of Michigan,, Ann Arbor, Michigan, USA
- Department of Neurology, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, California, USA
| | - Zachary A. Marcum
- Department of Pharmacy, School of Pharmacy, University of Washington, Seattle, Washington, USA
| | - Lu Wang
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan, USA
| | - James F. Burke
- Department of Neurology, University of Michigan,, Ann Arbor, Michigan, USA
- University of Michigan Institute for Healthcare Policy and Innovation, Ann Arbor, Michigan, USA
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Wang Y, Xia L, Li R, Li Y, Li J, Zhou Q, Pan S. Comparison of Long-Term Outcomes of Monotherapy and Polytherapy in Seizure-Free Patients With Epilepsy Following Antiseizure Medication Withdrawal. Front Neurol 2021; 12:669703. [PMID: 34108931 PMCID: PMC8182048 DOI: 10.3389/fneur.2021.669703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/07/2021] [Indexed: 12/02/2022] Open
Abstract
Objective: The objectives of this study were to compare the risk and timing of seizure relapse in seizure-free patients with epilepsy following the withdrawal of monotherapy or polytherapy and to identify relevant influencing factors. Methods: Patients who had achieved at least a 2-year seizure remission and started the withdrawal of antiseizure medication (ASM) were enrolled in this study. All patients were followed for at least 3 years or until seizure relapse. According to the number of ASMs at the time of withdrawalwas about twice than that, patients were divided into two groups: monotherapy group and polytherapy group. The Cox proportional hazards model was used to compare the recurrence risk of the two groups. Univariate analysis and multiple logistic regression analysis were used to analyze potential confounding variables between patients treated with monotherapy and polytherapy. Results: A total of 188 patients (119 males and 69 females) were included. The average prescribed daily dose of most ASMs at the time of withdrawal was moderate or low (30–50% defined daily dose). The recurrence of most patients (89.2%) occurred within the first 3 years after withdrawal. The recurrence risk in patients treated with polytherapy at the time of withdrawal was about twice than that of the monotherapy group [p = 0.001, hazard ratio (HR) = 2.152, 95% confidence interval (CI) = 1.350–3.428]. Multivariate analysis showed that patients treated with polytherapy were significantly older at seizure onset [p = 0.024, odd ratio (OR) = 1.027, 95% CI = 1.004–1.052] and had a significantly longer duration of epilepsy before treatment (p = 0.004, OR = 1.009, 95% CI = 1.003–1.015) compared to patients in the monotherapy group. In addition, a history of perinatal injury was found to be an independent risk factor of seizure relapse in patients with ASM withdrawal. Conclusion: The average prescribed daily dose of most ASMs at the time of withdrawal was moderate or low. Patients who received polytherapy at the time of withdrawal, particularly those with later seizure onset age and longer epilepsy duration before treatment, had a higher recurrence risk after ASMs withdrawal compared to patients treated with monotherapy.
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Affiliation(s)
- Yuxuan Wang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Li Xia
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Rong Li
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yudan Li
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jingyi Li
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qin Zhou
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Songqing Pan
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
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Abstract
SUMMARY Long-term video-EEG monitoring has been the gold standard for diagnosis of epileptic and nonepileptic events. Medication changes, safety, and a lack of recording EEG in one's habitual environment may interfere with diagnostic representation and subsequently affect management. Some spells defy standard EEG because of ultradian and circadian times of occurrence, manifest nocturnal expression of epileptiform activity, and require classification for clarifying diagnostic input to identify optimal treatment. Some patients may be unaware of seizures, have frequent events, or subclinical seizures that require quantification before optimal management. The influence on antiseizure drug management and clinical drug research can be enlightened by long-term outpatient ambulatory EEG monitoring. With recent governmental shifts to focus on mobile health, ambulatory EEG monitoring has grown beyond diagnostic capabilities to target the dynamic effects of medical and nonmedical treatment for patients with epilepsy in their natural environment. Furthermore, newer applications in ambulatory monitoring include additional physiologic parameters (e.g., sleep, detection of myogenic signals, etc.) and extend treatment relevance to patients beyond seizure reduction alone addressing comorbid conditions. It is with this focus in mind that we direct our discussion on the present and future aspects of using ambulatory EEG monitoring in the treatment of patients with epilepsy.
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Hasan TF, Tatum WO. When should we obtain a routine EEG while managing people with epilepsy? Epilepsy Behav Rep 2021; 16:100454. [PMID: 34041475 PMCID: PMC8141667 DOI: 10.1016/j.ebr.2021.100454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/24/2021] [Accepted: 04/22/2021] [Indexed: 11/30/2022] Open
Abstract
More than eight decades after its discovery, routine electroencephalogram (EEG) remains a safe, noninvasive, inexpensive, bedside test of neurological function. Knowing when a routine EEG should be obtained while managing people with epilepsy is a critical aspect of optimal care. Despite advances in neuroimaging techniques that aid diagnosis of structural lesions in the central nervous system, EEG continues to provide critical diagnostic evidence with implications on treatment. A routine EEG performed after a first unprovoked seizure can support a clinical diagnosis of epilepsy and differentiate those without epilepsy, classify an epilepsy syndrome to impart prognosis, and characterize seizures for antiseizure management. Despite a current viral pandemic, EEG services continue, and the value of routine EEG is unchanged.
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Affiliation(s)
- Tasneem F. Hasan
- Department of Neurology, Ochsner Louisiana State University Health Sciences Center, Shreveport, LA, United States
| | - William O. Tatum
- Department of Neurology, Mayo Clinic, Jacksonville, FL, United States
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Abstract
Patients with epilepsy who have been free of seizures for at least two years may be able to stop their antiepileptic drugs. Discontinuation may be considered after an individualised harm–benefit assessment and consultation with a neurologist is recommended. It is paramount to discuss with patients whether the risk of seizure recurrence is worth the benefit of stopping the antiepileptic drug. The risk of seizure recurrence after antiepileptic drugs are discontinued depends on the epilepsy syndrome and a number of other risk factors. Approximately 30–50% of patients will relapse. If seizures recur, the majority of patients regain seizure control when treatment is resumed. However up to 20% do not achieve immediate remission.
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Affiliation(s)
- Hanka Laue-Gizzi
- Comprehensive Epilepsy Service, Prince of Wales Hospital, Sydney.,University of New South Wales, Sydney
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Wang XP, Zhong J, Lei T, Wang HJ, Zhu LN, Chu S, Chen D, Liu L. Development and external validation of a predictive nomogram model of posttraumatic epilepsy: A retrospective analysis. Seizure 2021; 88:36-44. [PMID: 33812306 DOI: 10.1016/j.seizure.2021.03.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 02/20/2021] [Accepted: 03/22/2021] [Indexed: 02/08/2023] Open
Abstract
OBJECTIVE We aimed to develop and validate a predictive model of posttraumatic epilepsy (PTE). METHODS The training cohort was patients registered at West China Hospital and diagnosed as traumatic brain injury (TBI) between January 1, 2011, and December 31, 2017. On the basis of multivariable cox proportional hazards model using a forward stepwise method, the nomogram was generated. We externally validated this instrument in 834 participants from two independent cohorts to assess its performance. RESULTS The nomogram was built based on the results of multivariable cox proportional hazards regression analysis of 1301patients from West China Hospital. The prevalence of PTE was 12.8% (95% confidence interval [CI], 10.9-14.6%) in training cohort, 10.5% (95% CI, 7.5-13.4%) in the testing 1 cohort, and 6.1% (95% CI, 3.7-8.4%) in the testing 2 cohort. 7 independent predictors of PTE composed the nomogram (sex, time of loss of consciousness, subdural hemorrhage, contusion sites, early posttraumatic seizures, TBI severity, and treatment). The C-index was 0.846 (95% CI, 0.817-0.876), and the corresponding sensitivity and specificity were 0.867 and 0.738. External validations showed good discrimination in overall testing cohorts with a C-index of 0.895 (95% CI, 0.859-0.930), in the testing 1 cohort (C-index 0.897, 95% CI, 0.855-0.938) and testing 2 cohort (C-index, 0.883, 95% CI, 0.814-0.952). Calibration of this model was also good since the calibration plots were close to the ideal line. CONCLUSIONS This nomogram was developed and validated in a large cohort for individualized prediction of PTE, which can identify individuals at high risk of epilepsy and help us find preventive drugs based on these targeted population.
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Affiliation(s)
- Xue-Ping Wang
- Department of Neurology, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, 610041, Sichuan Province, China
| | - Jie Zhong
- Department of Ophthalmology, Sichuan Provincial People's Hospital, No. 32 West Second Section First Ring Road, Chengdu, Sichuan, China
| | - Ting Lei
- Department of Neurosurgery, Shang Jin Nan Fu Hospital of West China Hospital, Sichuan University, No. 253, Shang Jin Road, Chengdu, 610041, Sichuan Province, China
| | - Hai-Jiao Wang
- Department of Neurology, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, 610041, Sichuan Province, China
| | - Li-Na Zhu
- Department of Neurology, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, 610041, Sichuan Province, China
| | - Shanshan Chu
- Department of Neurology, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, 610041, Sichuan Province, China
| | - Deng Chen
- Department of Neurology, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, 610041, Sichuan Province, China
| | - Ling Liu
- Department of Neurology, West China Hospital, Sichuan University, No. 37, Guo Xue Xiang, Chengdu, 610041, Sichuan Province, China.
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Cardiovascular disease risk, awareness, and treatment in people with epilepsy. Epilepsy Behav 2021; 117:107878. [PMID: 33690068 DOI: 10.1016/j.yebeh.2021.107878] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/18/2021] [Accepted: 02/20/2021] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To evaluate whether cardiovascular risk, risk awareness, and guideline concordant treatment differ in individuals with versus without epilepsy. METHODS This was a retrospective cross-sectional study using the National Health and Nutrition Examination Survey. We included participants ≥18 years for 2013-2018. We classified participants as having epilepsy if reporting ≥1 medication treating seizures. We calculated 10-year atherosclerotic cardiovascular disease (ASCVD) risk using the revised pooled cohort equation. We compared unadjusted and adjusted risk for participants with versus without epilepsy. We then assessed hypertension and diabetes disease awareness and control, plus statin guideline-concordance. We assessed mediators for both ASCVD risk and cardiovascular disease awareness. RESULTS Of 17,961 participants, 154 (0.9%) had epilepsy. Participants with epilepsy reported poorer diet (p = 0.03), fewer minutes of moderate-vigorous activity per day (p < 0.01), and increased frequency of cardiovascular conditions (e.g. coronary heart disease, myocardial infarction, stroke). There was no difference in control of individual examination and laboratory risk factors between groups (A1c, systolic blood pressure, diastolic blood pressure, high-density lipoprotein, low-density lipoprotein, total cholesterol). However, epilepsy was associated with 52% (95% confidence interval [CI]: 0-130%) increase in ASCVD risk, which became nonsignificant after adjusting for health behaviors. No single studied variable (income, Patient Health Questionnaire-9 (PHQ-9), diet, smoking) had a significant indirect effect. Participants with epilepsy reported increased hypertension awareness which was trivially but significantly mediated by having a routine place of healthcare (indirect effect: 1% absolute increase (95% CI: 0-1%), and they reported increased rates of hypertension treatment and guideline-concordant statin therapy. Participants with versus without epilepsy reported similar rates of blood pressure control and diabetes awareness, treatment, and control. CONCLUSIONS Participants with epilepsy had increased ASCVD risk, despite similar or better awareness, treatment, and control of individual risk factors such as diabetes and hypertension. Our results suggest that epilepsy is associated with numerous health behaviors leading to cardiovascular disease, though the causal pathway is complex as these variables (income, depression, diet, exercise, smoking) generally served as confounders rather than mediators.
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Beghi E, Beretta S, Colombo M, Bianchi E, Carone D, Zanchi C, Tinti L, Pirovano M, Trentini C, Padovano G, Cereda D, Scanziani S, Giussani G, Gasparini S, Bogliun G, Ferrarese C. Discontinuation of antiseizure medications in seizure-free patients with long-term follow-up: Patients' profile, seizure recurrence, and risk factors. Epilepsy Behav 2021; 117:107871. [PMID: 33690066 DOI: 10.1016/j.yebeh.2021.107871] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/09/2021] [Accepted: 02/21/2021] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To compare withdrawal of antiseizure medications (ASM) to continued treatment in newly diagnosed individuals achieving seizure freedom, and assess the risk of relapse and factors associated with relapse. METHODS This is a multicenter retrospective cohort study with long-term follow-up. Patients with newly diagnosed epilepsy were identified from the medical records of 13 Italian epilepsy centers and followed up until the most recent visit or death. Seizure-free patients discontinuing treatment were compared to patients who maintained treatment for baseline characteristics. Treatment was stopped upon clinical judgment. The probability of relapse was calculated with the Kaplan-Meier method. Demographic, clinical, and instrumental variables associated with relapse were assessed with Cox proportional hazards models. RESULTS One thousand and six patients aged 1 month to 72 years at diagnosis were enrolled and followed up for 17,892 person-years (median follow-up, 9.9 years). Three hundred and twenty patients (31.8%) underwent one or more treatment discontinuations. Factors associated with ASM withdrawal were younger age at remission and normal psychiatric examination. The probability of relapse after the first withdrawal was 16% at six months, 24% at 12 months, and 36%, 45%, and 53% at three, five, and ten years, respectively. The probability of remission after the first relapse was 59% at one month, 67%, 72, and 76% at three, six, and 12 months, respectively. Variables associated with relapse were age 14+ years, structural etiology, abnormal neuroimaging, ASM initiation after a single seizure, and symptomatic/cryptogenic epilepsy. CONCLUSIONS About one half of seizure-free patients stopping ASM relapse in 10 years. However, the possibility of remission after relapse is high, particularly in children and patients with idiopathic/cryptogenic epilepsy. Treatment deprescription might be encouraged at least in these patients.
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Affiliation(s)
- Ettore Beghi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy.
| | - Simone Beretta
- Epilepsy Center, Department of Neurology, San Gerardo Hospital ASST Monza, University of Milano Bicocca, Monza, Italy
| | - Matteo Colombo
- Epilepsy Center, Department of Neurology, San Gerardo Hospital ASST Monza, University of Milano Bicocca, Monza, Italy
| | - Elisa Bianchi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
| | - Davide Carone
- Epilepsy Center, Department of Neurology, San Gerardo Hospital ASST Monza, University of Milano Bicocca, Monza, Italy
| | - Clara Zanchi
- Epilepsy Center, Department of Neurology, San Gerardo Hospital ASST Monza, University of Milano Bicocca, Monza, Italy
| | - Lorenzo Tinti
- Epilepsy Center, Department of Neurology, San Gerardo Hospital ASST Monza, University of Milano Bicocca, Monza, Italy
| | - Marta Pirovano
- Epilepsy Center, Department of Neurology, San Gerardo Hospital ASST Monza, University of Milano Bicocca, Monza, Italy
| | - Claudia Trentini
- Epilepsy Center, Department of Neurology, San Gerardo Hospital ASST Monza, University of Milano Bicocca, Monza, Italy
| | - Giada Padovano
- Epilepsy Center, Department of Neurology, San Gerardo Hospital ASST Monza, University of Milano Bicocca, Monza, Italy
| | - Diletta Cereda
- Epilepsy Center, Department of Neurology, San Gerardo Hospital ASST Monza, University of Milano Bicocca, Monza, Italy
| | - Sofia Scanziani
- Epilepsy Center, Department of Neurology, San Gerardo Hospital ASST Monza, University of Milano Bicocca, Monza, Italy
| | - Giorgia Giussani
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
| | - Sara Gasparini
- Medical and Surgical Sciences Department, School of Medicine, Magna Græcia University of Catanzaro, Catanzaro, Italy; Regional Epilepsy Centre, Great Metropolitan Hospital, Reggio Calabria, Italy
| | - Graziella Bogliun
- Epilepsy Center, Department of Neurology, San Gerardo Hospital ASST Monza, University of Milano Bicocca, Monza, Italy
| | - Carlo Ferrarese
- Epilepsy Center, Department of Neurology, San Gerardo Hospital ASST Monza, University of Milano Bicocca, Monza, Italy
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Yang S, Wang B, Han X. Models for predicting treatment efficacy of antiepileptic drugs and prognosis of treatment withdrawal in epilepsy patients. ACTA EPILEPTOLOGICA 2021. [DOI: 10.1186/s42494-020-00035-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AbstractAlthough antiepileptic drugs (AEDs) are the most effective treatment for epilepsy, 30–40% of patients with epilepsy would develop drug-refractory epilepsy. An accurate, preliminary prediction of the efficacy of AEDs has great clinical significance for patient treatment and prognosis. Some studies have developed statistical models and machine-learning algorithms (MLAs) to predict the efficacy of AEDs treatment and the progression of disease after treatment withdrawal, in order to provide assistance for making clinical decisions in the aim of precise, personalized treatment. The field of prediction models with statistical models and MLAs is attracting growing interest and is developing rapidly. What’s more, more and more studies focus on the external validation of the existing model. In this review, we will give a brief overview of recent developments in this discipline.
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Chu SS, Tan G, Wang XP, Liu L. Validation of the predictive model for seizure recurrence after withdrawal of antiepileptic drugs. Epilepsy Behav 2021; 114:106987. [PMID: 32444329 DOI: 10.1016/j.yebeh.2020.106987] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 01/14/2020] [Accepted: 02/17/2020] [Indexed: 02/08/2023]
Abstract
PURPOSE The purpose of this study was to validate the practicability of Lamberink's prediction model in risk assessment of antiepileptic drug (AED) withdrawal in a real, seizure-free population and to find a practical cutoff value to guide clinical withdrawal. METHODS A group of seizure-free patients from West China Hospital was recruited. Each patient had been seizure-free for at least two years. The seizure recurrence risk among the patients was calculated by an online AED withdrawal risk calculator. The predictive ability of Lamberink's model was assessed by analyzing discrimination and calibration with receiver operating characteristic (ROC) curves and calibration plots, respectively. RESULTS A total of 184 seizure-free patients received risk evaluation, all of whom were followed up for at least two years or had an earlier report of seizure relapse. Of these patients, 128 patients were followed up for at least five years or had an earlier report of relapse within five years. Sixty-two of 184 (33.7%) patients relapsed within two years, while 81 of 184 (44.0%) patients relapsed within five years after the start of AEDs' withdrawal. Cox regression analyses showed that seizure duration before remission and the age of seizure onset were independent predictors of relapse at two years. For predictors of recurrence at five years, seizure duration before remission, age at onset, and withdrawal were significant. For discrimination, ROC curve analysis showed that the area under the curve (AUC) for the seizure recurrence within two and five years was 0.605 (95% confidence interval [CI]: 0.518-0.692, p = 0.02) and 0.656 (95% CI: 0.563-0.749, p = 0.003), respectively. For calibration, it was poor in two-year prediction; the observed number was considerably lower than the predicted number. However, the calibration plot showed good calibration with the five-year prediction except for the second, fourth, and eighth deciles. With a cutoff two-year recurrence risk of 47%, the model had a sensitivity of 0.758 and a specificity of 0.410; the largest Youden index was 1.168. With a cutoff five-year recurrence risk of 77%, the model had a sensitivity of 0.358 and a specificity of 0.979; the largest Youden index was 1.337. CONCLUSIONS Lamberink's prediction model has a general discrimination ability. The model overestimated the actual recurrence events when predicting the two-year recurrence risk, but it showed relatively good calibration with five-year prediction. The cutoff value found in this study may be used to guide patients and clinicians towards a decision regarding the withdrawal of AEDs. The model appears to be a useful tool for predicting seizure recurrence for the five-year recurrence risk.
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Affiliation(s)
- Shan-Shan Chu
- Department of Neurology, West China Hospital, Sichuan University, Wai Nan Guo Xue Lane 37#, Chengdu 610041, China
| | - Ge Tan
- Department of Neurology, West China Hospital, Sichuan University, Wai Nan Guo Xue Lane 37#, Chengdu 610041, China
| | - Xue-Ping Wang
- Department of Neurology, West China Hospital, Sichuan University, Wai Nan Guo Xue Lane 37#, Chengdu 610041, China
| | - Ling Liu
- Department of Neurology, West China Hospital, Sichuan University, Wai Nan Guo Xue Lane 37#, Chengdu 610041, China.
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Risk of seizure recurrence from antiepileptic drug withdrawal among seizure-free patients for more than two years. Epilepsy Behav 2020; 113:107485. [PMID: 33157416 DOI: 10.1016/j.yebeh.2020.107485] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/15/2020] [Accepted: 09/07/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE The aim of this study was to determine the outcome of antiepileptic drug (AED) withdrawal in patients who were seizure-free for more than two years. METHODS Patients with epilepsy who were seizure-free for at least two years and decided to stop AED therapy gradually were followed up every two months for seizure relapse. The inclusion criteria were as follows: (1) diagnosis of epilepsy, defined as the following conditions: ① at least two unprovoked (or reflex) seizures occurring >24 h apart; ② one unprovoked (or reflex) seizure and a probability of further seizures similar to the general recurrence risk (at least 60%) after two unprovoked seizures, occurring over the next 10 years; ③ diagnosis of an epilepsy syndrome; (2) patients remained seizure-free for at least 24 consecutive months during AED therapy; and (3) patients expressed a desire to discontinue AED therapy gradually and agreed to return for regular follow-ups. The time to a seizure relapse and predictive factors were analyzed by survival methods, including sex; age at seizure onset; number of episodes; seizure-free period before AED withdrawal; duration of follow-up after AED withdrawal; AED tapering off period (taper period); results from brain magnetic resonance (MRI); electroencephalogram (EEG) after drug withdrawal; EEG before drug withdrawal; seizure type (classified as generalized, partial, or multiple types based on history); and the number of AEDs administered for long-term seizure control. A log-rank test was used for univariate analysis, and a Cox proportional hazard model was used for multivariate analysis. RESULTS We selected 94 patients (58 men, 36 women). The relapse ratio was 29.8%. Univariate analysis and multivariate Cox regression analysis indicated that withdrawal times and multiple AEDs, as well as the seizure-free period before withdrawal and abnormal EEG after drug withdrawal were significantly correlated with seizure recurrence and were significant independent predictive factors, with a hazard ratio of 0.839 and 3.971, 0.957, and 3.684, respectively. SIGNIFICANCE The relapse rate in our study was similar to commonly reported overall rates for epilepsy. Distinguishing variables, such as withdrawal times, multiple AEDs, seizure-free period before withdrawal, and abnormal EEG after drug withdrawal, need to be considered when choosing to withdraw from AEDs. Therefore, our recommendation is that after two years of seizure-free survival, patients could consider withdrawal unless they have hippocampal sclerosis (HS).
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Terman SW, Hill CE, Burke JF. Disability in people with epilepsy: A nationally representative cross-sectional study. Epilepsy Behav 2020; 112:107429. [PMID: 32919202 DOI: 10.1016/j.yebeh.2020.107429] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/19/2020] [Accepted: 08/19/2020] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The objective of this study was to explore the prevalence and predictors of limitations causing disability in patients treated for seizures or epilepsy compared with patients without epilepsy. METHODS This was a retrospective cross-sectional study using the National Health and Nutrition Examination Survey (NHANES). We included all participants ≥20 years old for 2013-2018. We classified patients as having epilepsy if they reported taking at least one prescription medication to treat seizures or epilepsy. Physical, mental, and social limitations were determined from interview questions. We report the prevalence of any limitation and total number of limitations for participants without vs. with epilepsy using serial negative binomial regressions and severity of individual limitations according to epilepsy status. RESULTS We included 17,057 participants, of whom 148 (0.8%) had epilepsy. Overall, 80% (95% confidence interval [CI]: 73%-86%) with epilepsy vs. 38% (95% CI: 36%-39%) without epilepsy reported at least 1 limitation (p < 0.01). The mean number of limitations was 7.5 (95% CI: 6.2-8.8) for those with epilepsy vs. 2.4 (95% CI: 2.3-2.6) for those without epilepsy (p < 0.01). Epilepsy was associated with an incidence rate ratio (IRR) of 3.1 (95% CI: 2.6-3.7) in an unadjusted negative binomial regression. After adjusting for demographics and comorbidities, this association was no longer significant (IRR: 1.2, 95% CI: 0.9-1.7). Limitations cited by 40-50% of participants with epilepsy included stooping/kneeling/crouching, standing for long periods of time, and pushing/pulling objects. Limitation severity was consistently higher in patients with epilepsy. CONCLUSIONS Patients with epilepsy had 3.1 times as many physical, mental, or social limitations compared with those without epilepsy, and disability severity was consistently higher. This effect was attenuated after considering baseline variables such as smoking and depression severity. Our work implies the importance of structured mental health screening and self-management programs targeting mood, weight, and lifestyle as potential leverage points towards alleviating epilepsy-related disability.
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Affiliation(s)
- Samuel W Terman
- University of Michigan, Department of Neurology, Ann Arbor, MI 48109, USA; University of Michigan, Institute for Healthcare Policy and Innovation, Ann Arbor, MI 48109, USA.
| | - Chloe E Hill
- University of Michigan, Department of Neurology, Ann Arbor, MI 48109, USA; University of Michigan, Institute for Healthcare Policy and Innovation, Ann Arbor, MI 48109, USA.
| | - James F Burke
- University of Michigan, Department of Neurology, Ann Arbor, MI 48109, USA; University of Michigan, Institute for Healthcare Policy and Innovation, Ann Arbor, MI 48109, USA.
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Saleem T, Sheikh N, Abbasi MH, Javed I, Khawar MB. COVID-19 containment and its unrestrained impact on epilepsy management in resource-limited areas of Pakistan. Epilepsy Behav 2020; 112:107476. [PMID: 33181895 PMCID: PMC7518832 DOI: 10.1016/j.yebeh.2020.107476] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/04/2020] [Accepted: 09/06/2020] [Indexed: 12/14/2022]
Abstract
The current pandemic of coronavirus disease 2019 (COVID-19) that led to an unprecedented crisis with significant health, social, and economic repercussions presented more serious concerns for those living with some chronic conditions such as epilepsy. This study was aimed to find out impact of the COVID-19 pandemic on management of epilepsy. A cross-sectional study was conducted through telephone interviews, targeting 213 caregivers of pediatric patients with epilepsy, belonging to underserved areas of Faisalabad, Punjab, Pakistan. A simple questionnaire was designed to record the responses of participants relevant to the direct and indirect effects of COVID-19 pandemic and their knowledge about possible ways that can be accessed for the management of epilepsy during an ongoing pandemic. The current study, which holds 77% of the respondents from rural areas and 23% from urban settings, showed that partial measures of lockdown taken to stop or slow the spread of COVID-19 resulted in adverse economic and health outcomes in the said population including cancelation of follow-up visits, worsening of seizures, job loss, burden of antiepileptic drugs (AEDs) costs, and discontinuation of medicines. Furthermore, knowledge about alternative ways to access health facilities was found very poor among caregivers. Income sources of poor people disrupted by lockdown can lead to unintentional nonadherence to medication, which is a clear picture of inequitable distribution of resources. This study highlights the major issues faced by the caregivers during this ongoing pandemic of COVID-19.
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Affiliation(s)
- Tayyaba Saleem
- Cell and Molecular Biology Laboratory, Department of Zoology, University of the Punjab, Lahore 54590, Pakistan
| | - Nadeem Sheikh
- Cell and Molecular Biology Laboratory, Department of Zoology, University of the Punjab, Lahore 54590, Pakistan.
| | | | - Iram Javed
- Department of Pediatric Neurology Children Hospital & Institute of Child Health Faisalabad, 38000, Pakistan
| | - Muhammad Babar Khawar
- Cell and Molecular Biology Laboratory, Department of Zoology, University of the Punjab, Lahore 54590, Pakistan; State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing 100049, China
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Terman SW, Aubert CE, Hill CE, Maust DT, Betjemann JP, Boyd CM, Burke JF. Polypharmacy in patients with epilepsy: A nationally representative cross-sectional study. Epilepsy Behav 2020; 111:107261. [PMID: 32629416 PMCID: PMC7869064 DOI: 10.1016/j.yebeh.2020.107261] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 06/08/2020] [Accepted: 06/11/2020] [Indexed: 10/31/2022]
Abstract
OBJECTIVE The objective of the study was to characterize the prevalence of polypharmacy and central nervous system (CNS)-acting medications in patients with epilepsy, and particular types of medications. METHODS This was a retrospective cross-sectional study using data from the nationally representative National Health and Nutrition Examination Survey (NHANES). We included patients who reported taking at least one prescription medication in order to treat seizures or epilepsy during NHANES survey years 2013-2016. We assessed the number and types of drugs and predictors of total number of medications using a negative binomial regression. We then assessed prevalence of polypharmacy (≥5 medications), CNS polypharmacy (≥3 CNS-acting medications) and additional CNS-acting medications, and drugs that lower the seizure threshold (i.e., bupropion and tramadol), and extrapolated prevalence to estimated affected US population. RESULTS The NHANES contained 20,146 participants, of whom 135 reported taking ≥1 antiseizure medication (ASM) for seizures or epilepsy representing 2,399,520 US citizens using NHANES's sampling frame. Patients reported taking a mean 5.3 (95% confidence interval (CI): 4.3-6.3) prescription medications. Adjusting for race, sex, and uninsurance, both age and number of chronic conditions predicted increased number of medications (incident rate ratio (IRR) per decade: 1.16, 95% CI: 1.04-1.28; IRR per chronic condition: 1.19, 95% CI: 1.11-1.27). Polypharmacy was reported by 47% (95% CI: 38%-57%) of patients, CNS polypharmacy by 34% (23%-47%), benzodiazepine use by 21% (14%-30%), opioid use by 16% (11%-24%), benzodiazepine plus opioid use by 6% (3%-14%), and 6% (2%-15%) reported a drug that lowers the seizure threshold. Twelve percent (7%-20%) took an opioid with either a benzodiazepine or gabapentinoid. CONCLUSIONS Polypharmacy is common in patients with epilepsy. Patients taking ASMs frequently reported also taking other CNS-acting medications (i.e., opioids, benzodiazepines, seizure threshold-lowering medications), and medication combinations with black box warnings. Central nervous system polypharmacy poses health risks. Future research is needed to explore drivers of polypharmacy and strategies to help mitigate potentially harmful prescription use in this high-risk population.
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Affiliation(s)
- Samuel W Terman
- University of Michigan Department of Neurology, Ann Arbor, MI 48109, USA; University of Michigan Institute for Healthcare Policy and Innovation, Ann Arbor, MI 48109, USA.
| | - Carole E Aubert
- University of Michigan Institute for Healthcare Policy and Innovation, Ann Arbor, MI 48109, USA; Department of General Internal Medicine, Bern University Hospital, University of Bern, Bern, Switzerland; Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI 48109, USA.
| | - Chloe E Hill
- University of Michigan Department of Neurology, Ann Arbor, MI 48109, USA; University of Michigan Institute for Healthcare Policy and Innovation, Ann Arbor, MI 48109, USA.
| | - Donovan T Maust
- University of Michigan Institute for Healthcare Policy and Innovation, Ann Arbor, MI 48109, USA; Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, MI 48109, USA; University of Michigan Department of Psychiatry, Ann Arbor, MI 48109, USA.
| | - John P Betjemann
- University of California San Francisco, Weill Institute for Neurosciences, San Francisco, USA.
| | - Cynthia M Boyd
- Johns Hopkins University, Center on Aging and Health, Baltimore, MD 21205, USA.
| | - James F Burke
- University of Michigan Department of Neurology, Ann Arbor, MI 48109, USA; University of Michigan Institute for Healthcare Policy and Innovation, Ann Arbor, MI 48109, USA.
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Prediction of the recurrence risk in patients with epilepsy after the withdrawal of antiepileptic drugs. Epilepsy Behav 2020; 110:107156. [PMID: 32502930 DOI: 10.1016/j.yebeh.2020.107156] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/23/2020] [Accepted: 04/28/2020] [Indexed: 12/18/2022]
Abstract
Many seizure-free patients who consider withdrawing from antiepileptic drugs (AEDs) hope to discontinue treatment to avoid adverse effects. However, withdrawal has certain risks that are difficult to predict. In this study, we performed a literature review, summarized the causes of significant variability in the risk of postwithdrawal recurrent seizures, and reviewed study data on the age at onset, cause, types of seizures, epilepsy syndrome, magnetic resonance imaging (MRI) abnormalities, epilepsy surgery, and withdrawal outcomes of patients with epilepsy. Many factors are associated with recurrent seizures after AED withdrawal. For patients who are seizure-free after treatment, the role of an electroencephalogram (EEG) alone in ensuring safe withdrawal is limited. A series of prediction models for the postwithdrawal recurrence risk have incorporated various potentially important factors in a comprehensive analysis. We focused on the populations of studies investigating five risk prediction models and analyzed the predictive variables and recommended applications of each model, aiming to provide a reference for personalized withdrawal for patients with epilepsy in clinical practice.
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Ouyang CS, Yang RC, Wu RC, Chiang CT, Lin LC. Determination of Antiepileptic Drugs Withdrawal Through EEG Hjorth Parameter Analysis. Int J Neural Syst 2020; 30:2050036. [PMID: 32812470 DOI: 10.1142/s0129065720500367] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The decision to continue or to stop antiepileptic drug (AED) treatment in patients with prolonged seizure remission is a critical issue. Previous studies have used certain risk factors or electroencephalogram (EEG) findings to predict seizure recurrence after the withdrawal of AEDs. However, validated biomarkers to guide the withdrawal of AEDs are lacking. In this study, we used quantitative EEG analysis to establish a method for predicting seizure recurrence after the withdrawal of AEDs. A total of 34 patients with epilepsy were divided into two groups, 17 patients in the recurrence group and the other 17 patients in the nonrecurrence group. All patients were seizure free for at least two years. Before AED withdrawal, an EEG was performed for each patient that showed no epileptiform discharges. These EEG recordings were classified using Hjorth parameter-based EEG features. We found that the Hjorth complexity values were higher in patients in the recurrence group than in the nonrecurrence group. The extreme gradient boosting classification method achieved the highest performance in terms of accuracy, area under the curve, sensitivity, and specificity (84.76%, 88.77%, 89.67%, and 80.47%, respectively). Our proposed method is a promising tool to help physicians determine AED withdrawal for seizure-free patients.
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Affiliation(s)
- Chen-Sen Ouyang
- Department of Information Engineering, I-Shou University, No. 1, Section 1, Syuecheng Road, Dashu District, Kaohsiung 84001, Taiwan
| | - Rei-Cheng Yang
- Departments of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No. 100, Shin-Chuan 1st Road, Kaohsiung 80708, Taiwan
| | - Rong-Ching Wu
- Department of Electrical Engineering, I-Shou University, No. 1, Section 1, Syuecheng Road, Dashu District, Kaohsiung 84001, Taiwan
| | - Ching-Tai Chiang
- Department of Computer and Communication, National Pingtung University, No. 51, Minsheng Road, Pingtung 900392, Taiwan
| | - Lung-Chang Lin
- Department of Pediatrics, School of Medicine, College of Medicine, Departments of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No. 100, Shin-Chuan 1st Road, Kaohsiung 80708, Taiwan
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Anastasopoulou S, Heyman M, Eriksson MA, Niinimäki R, Taskinen M, Mikkel S, Vaitkeviciene GE, Johannsdottir IM, Myrberg IH, Jonsson OG, Als-Nielsen B, Schmiegelow K, Banerjee J, Ranta S, Harila-Saari A. Seizures during treatment of childhood acute lymphoblastic leukemia: A population-based cohort study. Eur J Paediatr Neurol 2020; 27:72-77. [PMID: 32340855 DOI: 10.1016/j.ejpn.2020.04.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 03/18/2020] [Accepted: 04/11/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Seizures are common in children with acute lymphoblastic leukemia (ALL). As ALL survival rates are improving, the challenge to minimize treatment related side effects and late sequelae rises. Here, we studied the frequency, timing, etiology and risk factors of seizures in ALL patients. METHODS The study included children aged 1-17.9 years at diagnosis of B-cell-precursor and T cell ALL who were treated according to the Nordic Society of Pediatric Hematology and Oncology (NOPHO) ALL2008 protocol between 2008 and 2015. Detailed patient data were acquired from the NOPHO ALL2008 registry and by review of medical records. RESULTS Seizures occurred in 81/1464 (5.5%) patients. The cumulative incidence of seizures at one months was 1.7% (95% CI: 1.2-2.5) and at one year 5.3% (95% CI 4.2-6.5%). Patients aged 10-17.9 years, those with T cell immunophenotype, CNS involvement, or high-risk induction with dexamethasone had higher risk for seizures in univariable analyses. Only age remained a risk factor in multivariable analyses (the cumulative incidence of seizures for patients 10-17.9 years old at one year was 9.0% (95% CI: 6.2-12.9)). Of the 81 patients with seizures, 43 had posterior reversible encephalopathy syndrome (PRES), 15 had isolated seizures, nine had sinus venous thrombosis (SVT), three had stroke-like syndrome, and 11 had other neurotoxicities. Epilepsy diagnosis was reported in totally 11 ALL survivors at last follow up. CONCLUSION Seizures are relatively common in ALL patients and occur most often in patients with PRES, SVT, or as an isolated symptom. Older children have higher risk of seizures.
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Affiliation(s)
- Stavroula Anastasopoulou
- Karolinska Institutet, Department of Women's and Children's Health, Stockholm, Sweden; Karolinska University Hospital, Astrid Lindgren Children's Hospital, Stockholm, Sweden.
| | - Mats Heyman
- Karolinska Institutet, Department of Women's and Children's Health, Stockholm, Sweden; Karolinska University Hospital, Astrid Lindgren Children's Hospital, Stockholm, Sweden
| | - Mats A Eriksson
- Karolinska Institutet, Department of Women's and Children's Health, Stockholm, Sweden; Karolinska University Hospital, Astrid Lindgren Children's Hospital, Stockholm, Sweden
| | - Riitta Niinimäki
- Oulu University Hospital, Department of Children and Adolescents, and University of Oulu, PEDEGO Research Unit, Oulu, Finland
| | - Mervi Taskinen
- Division of Pediatric Hematology and Oncology and Stem Cell Transplantation, Helsinki University Hospital and Helsinki University, Helsinki, Finland
| | - Sirje Mikkel
- University of Tartu, Department of Hematology and Oncology, Tartu, Estonia
| | - Goda E Vaitkeviciene
- Children's Hospital, Affiliation of Vilnius University Hospital Santaros Klinikos and Vilnius University, Lithuania
| | | | - Ida Hed Myrberg
- Karolinska Institutet, Department of Women's and Children's Health, Stockholm, Sweden
| | | | - Bodil Als-Nielsen
- Department of Paediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Kjeld Schmiegelow
- Department of Paediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Denmark
| | - Joanna Banerjee
- Division of Pediatric Hematology and Oncology and Stem Cell Transplantation, Helsinki University Hospital and Helsinki University, Helsinki, Finland
| | - Susanna Ranta
- Karolinska Institutet, Department of Women's and Children's Health, Stockholm, Sweden; Karolinska University Hospital, Astrid Lindgren Children's Hospital, Stockholm, Sweden
| | - Arja Harila-Saari
- University of Uppsala, Department of Women's and Children's Health, Uppsala, Sweden
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