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1.
Epilepsia ; 65(6): 1581-1588, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38498313

RESUMEN

OBJECTIVE: New-onset refractory status epilepticus (NORSE) is a rare but severe clinical syndrome. Despite rigorous evaluation, the underlying cause is unknown in 30%-50% of patients and treatment strategies are largely empirical. The aim of this study was to describe clinical outcomes in a cohort of well-phenotyped, thoroughly investigated patients who survived the initial phase of cryptogenic NORSE managed in specialist centers. METHODS: Well-characterized cases of cryptogenic NORSE were identified through the EPIGEN and Critical Care EEG Monitoring Research Consortia (CCEMRC) during the period 2005-2019. Treating epileptologists reported on post-NORSE survival rates and sequelae in patients after discharge from hospital. Among survivors >6 months post-discharge, we report the rates and severity of active epilepsy, global disability, vocational, and global cognitive and mental health outcomes. We attempt to identify determinants of outcome. RESULTS: Among 48 patients who survived the acute phase of NORSE to the point of discharge from hospital, 9 had died at last follow-up, of whom 7 died within 6 months of discharge from the tertiary care center. The remaining 39 patients had high rates of active epilepsy as well as vocational, cognitive, and psychiatric comorbidities. The epilepsy was usually multifocal and typically drug resistant. Only a minority of patients had a good functional outcome. Therapeutic interventions were heterogenous during the acute phase of the illness. There was no clear relationship between the nature of treatment and clinical outcomes. SIGNIFICANCE: Among survivors of cryptogenic NORSE, longer-term outcomes in most patients were life altering and often catastrophic. Treatment remains empirical and variable. There is a pressing need to understand the etiology of cryptogenic NORSE and to develop tailored treatment strategies.


Asunto(s)
Epilepsia Refractaria , Estado Epiléptico , Sobrevivientes , Humanos , Masculino , Femenino , Adulto , Persona de Mediana Edad , Adulto Joven , Adolescente , Resultado del Tratamiento , Electroencefalografía , Niño
2.
Epilepsia ; 65(5): 1451-1461, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38491957

RESUMEN

OBJECTIVE: The contribution of somatic variants to epilepsy has recently been demonstrated, particularly in the etiology of malformations of cortical development. The aim of this study was to determine the diagnostic yield of somatic variants in genes that have been previously associated with a somatic or germline epilepsy model, ascertained from resected brain tissue from patients with multidrug-resistant focal epilepsy. METHODS: Forty-two patients were recruited across three categories: (1) malformations of cortical development, (2) mesial temporal lobe epilepsy with hippocampal sclerosis, and (3) nonlesional focal epilepsy. Participants were subdivided based on histopathology of the resected brain. Paired blood- and brain-derived DNA samples were sequenced using high-coverage targeted next generation sequencing to high depth (585× and 1360×, respectively). Variants were identified using Genome Analysis ToolKit (GATK4) MuTect-2 and confirmed using high-coverage Amplicon-EZ sequencing. RESULTS: Sequence data on 41 patients passed quality control. Four somatic variants were validated following amplicon sequencing: within CBL, ALG13, MTOR, and FLNA. The diagnostic yield across 41 patients was 10%, 9% in mesial temporal lobe epilepsy with hippocampal sclerosis and 20% in malformations of cortical development. SIGNIFICANCE: This study provides novel insights into the etiology of mesial temporal lobe epilepsy with hippocampal sclerosis, highlighting a potential pathogenic role of somatic variants in CBL and ALG13. We also report candidate diagnostic somatic variants in FLNA in focal cortical dysplasia, while providing further insight into the importance of MTOR and related genes in focal cortical dysplasia. This work demonstrates the potential molecular diagnostic value of variants in both germline and somatic epilepsy genes.


Asunto(s)
Epilepsia Refractaria , Epilepsia del Lóbulo Temporal , Hipocampo , Esclerosis , Humanos , Epilepsia del Lóbulo Temporal/genética , Epilepsia del Lóbulo Temporal/patología , Hipocampo/patología , Esclerosis/genética , Esclerosis/patología , Epilepsia Refractaria/genética , Epilepsia Refractaria/etiología , Epilepsia Refractaria/patología , Femenino , Masculino , Adulto , Adulto Joven , Adolescente , Malformaciones del Desarrollo Cortical/genética , Malformaciones del Desarrollo Cortical/complicaciones , Malformaciones del Desarrollo Cortical/patología , Niño , Filaminas/genética , Persona de Mediana Edad , Preescolar , Variación Genética/genética , Esclerosis del Hipocampo
3.
Scand J Med Sci Sports ; 34(8): e14701, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39049501

RESUMEN

Combat sports athletes often undergo rapid body mass loss (BML), which presents health risks. Hydration testing has been proposed as a possible solution to reduce or eliminate rapid BML. However, combat sports athletes may exhibit distinct physiological characteristics due to repeated exposure to BML. Thus, traditional and emerging hydration biomarkers should be investigated to determine their potential suitability for field use in this cohort. This study examined whether BML can explain changes in serum and urine osmolality (SosmΔ, UosmΔ), tear osmolarity (TosmΔ), hematocrit (HctΔ), and urine-specific gravity (USGΔ) after mild-moderate passive dehydration. Biomarker reliability was also assessed across two trials. Fifteen male and female combat sports athletes (age: 26.3 ± 5.3 years, body mass: 67.7 ± 9.9 kg) underwent a sauna protocol twice (5-28 days apart) aiming for 4% BML. The average BML in Trials 1 and 2 was 3.0 ± 0.7%. Regression analysis revealed that BML explained HctΔ (R2 = 0.22, p = 0.009) but not SosmΔ (R2 = 0.11, p = 0.079) or other biomarkers. Intraclass correlation coefficients (ICCs) were significant for all biomarkers except TosmΔ (ICC = 0.06, p = 0.37) and post-Tosm (ICC = 0.04, p = 0.42); post-Hct performed best (ICC = 0.82, p < 0.001). Contingency tables with post-Sosm (295 mOsm/kg) and post-USG (1.020) cutoffs revealed an 80% true negative rate (TNR) and a 62% true positive rate (TPR). Increasing the Sosm cutoff to 301 mOsm/kg decreased the TNR to 52% but increased the TPR to 83%. Although blood parameters were most sensitive to BML, they could only explain 11%-22% of biomarker variation. The typical USG cutoff misclassified 42% of athletes postdehydration, and reliability was generally poor-moderate. Alternative strategies should be pursued to manage rapid BML in combat sports.


Asunto(s)
Biomarcadores , Deshidratación , Sudor , Lágrimas , Humanos , Masculino , Biomarcadores/sangre , Adulto , Deshidratación/diagnóstico , Femenino , Concentración Osmolar , Adulto Joven , Sudor/química , Gravedad Específica , Hematócrito , Artes Marciales/fisiología , Baño de Vapor , Reproducibilidad de los Resultados , Pérdida de Peso , Atletas , Orina/química
4.
Int J Sport Nutr Exerc Metab ; 34(2): 88-100, 2024 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-38215737

RESUMEN

This study investigated (a) differences between males and females for changes in serum, tear, and urine osmolality, hematocrit, and urine specific gravity following acute passive dehydration and (b) assessed the reliability of these biomarkers separately for each sex. Fifteen males (age: 26.3 ± 3.5 years, body mass: 76 ± 7 kg) and 15 females (age: 28.8 ± 6.4 years, body mass: 63 ± 7 kg) completed a sauna protocol twice (5-28 days apart), aiming for 4% body mass loss (BML). Urine, blood, and tear markers were collected pre- and postdehydration, and change scores were calculated. Male BML was significantly greater than that of females in Trial 1 (3.53% ± 0.55% vs. 2.53% ± 0.43%, p < .001) and Trial 2 (3.36% ± 0.66% vs. 2.53% ± 0.44%, p = .01). Despite significant differences in BML, change in hematocrit was the only change marker that displayed a significant difference in Trial 1 (males: 3% ± 1%, females: 2% ± 1%, p = .004) and Trial 2 (males: 3% ± 1%, females: 1% ± 1%, p = .008). Regression analysis showed a significant effect for sex (male) predicting change in hematocrit (ß = 0.8, p = .032) and change in serum osmolality (ß = -3.3, p = .005) when controlling for BML but not for urinary or tear measures. The intraclass correlation coefficients for females (ICC 2, 1) were highest for change in urine specific gravity (ICC = .62, p = .006) and lowest for change in tear osmolarity (ICC = -.14, p = .689), whereas for males, it was posthematocrit (ICC = .65, p = .003) and post tear osmolarity (ICC = .18, p = .256). Generally, biomarkers showed lower test-retest reliability in males compared with females but, overall, were classified as poor-moderate in both sexes. These findings suggest that the response and reliability of hydration biomarkers are sex specific and highlight the importance of accounting for BML differences.


Asunto(s)
Deshidratación , Caracteres Sexuales , Humanos , Masculino , Femenino , Adulto Joven , Adulto , Reproducibilidad de los Resultados , Ejercicio Físico/fisiología , Concentración Osmolar , Biomarcadores/orina
5.
Brain ; 145(6): 2049-2063, 2022 06 30.
Artículo en Inglés | MEDLINE | ID: mdl-34927674

RESUMEN

The mechanisms underlying the complications of mild traumatic brain injury, including post-concussion syndrome, post-impact catastrophic death, and delayed neurodegeneration remain poorly understood. This limited pathophysiological understanding has hindered the development of diagnostic and prognostic biomarkers and has prevented the advancement of treatments for the sequelae of mild traumatic brain injury. We aimed to characterize the early electrophysiological and neurovascular alterations following repetitive mild traumatic brain injury and sought to identify new targets for the diagnosis and treatment of individuals at risk of severe post-impact complications. We combined behavioural, electrophysiological, molecular, and neuroimaging techniques in a rodent model of repetitive mild traumatic brain injury. In humans, we used dynamic contrast-enhanced MRI to quantify blood-brain barrier dysfunction after exposure to sport-related concussive mild traumatic brain injury. Rats could clearly be classified based on their susceptibility to neurological complications, including life-threatening outcomes, following repetitive injury. Susceptible animals showed greater neurological complications and had higher levels of blood-brain barrier dysfunction, transforming growth factor ß (TGFß) signalling, and neuroinflammation compared to resilient animals. Cortical spreading depolarizations were the most common electrophysiological events immediately following mild traumatic brain injury and were associated with longer recovery from impact. Triggering cortical spreading depolarizations in mild traumatic brain injured rats (but not in controls) induced blood-brain barrier dysfunction. Treatment with a selective TGFß receptor inhibitor prevented blood-brain barrier opening and reduced injury complications. Consistent with the rodent model, blood-brain barrier dysfunction was found in a subset of human athletes following concussive mild traumatic brain injury. We provide evidence that cortical spreading depolarization, blood-brain barrier dysfunction, and pro-inflammatory TGFß signalling are associated with severe, potentially life-threatening outcomes following repetitive mild traumatic brain injury. Diagnostic-coupled targeting of TGFß signalling may be a novel strategy in treating mild traumatic brain injury.


Asunto(s)
Conmoción Encefálica , Animales , Barrera Hematoencefálica/metabolismo , Encéfalo/metabolismo , Conmoción Encefálica/etiología , Humanos , Neuroimagen , Ratas , Factor de Crecimiento Transformador beta/metabolismo
6.
Brain ; 145(4): 1285-1298, 2022 05 24.
Artículo en Inglés | MEDLINE | ID: mdl-35333312

RESUMEN

Temporal lobe epilepsy, a common drug-resistant epilepsy in adults, is primarily a limbic network disorder associated with predominant unilateral hippocampal pathology. Structural MRI has provided an in vivo window into whole-brain grey matter structural alterations in temporal lobe epilepsy relative to controls, by either mapping (i) atypical inter-hemispheric asymmetry; or (ii) regional atrophy. However, similarities and differences of both atypical asymmetry and regional atrophy measures have not been systematically investigated. Here, we addressed this gap using the multisite ENIGMA-Epilepsy dataset comprising MRI brain morphological measures in 732 temporal lobe epilepsy patients and 1418 healthy controls. We compared spatial distributions of grey matter asymmetry and atrophy in temporal lobe epilepsy, contextualized their topographies relative to spatial gradients in cortical microstructure and functional connectivity calculated using 207 healthy controls obtained from Human Connectome Project and an independent dataset containing 23 temporal lobe epilepsy patients and 53 healthy controls and examined clinical associations using machine learning. We identified a marked divergence in the spatial distribution of atypical inter-hemispheric asymmetry and regional atrophy mapping. The former revealed a temporo-limbic disease signature while the latter showed diffuse and bilateral patterns. Our findings were robust across individual sites and patients. Cortical atrophy was significantly correlated with disease duration and age at seizure onset, while degrees of asymmetry did not show a significant relationship to these clinical variables. Our findings highlight that the mapping of atypical inter-hemispheric asymmetry and regional atrophy tap into two complementary aspects of temporal lobe epilepsy-related pathology, with the former revealing primary substrates in ipsilateral limbic circuits and the latter capturing bilateral disease effects. These findings refine our notion of the neuropathology of temporal lobe epilepsy and may inform future discovery and validation of complementary MRI biomarkers in temporal lobe epilepsy.


Asunto(s)
Conectoma , Epilepsia del Lóbulo Temporal , Adulto , Atrofia/patología , Epilepsia del Lóbulo Temporal/patología , Hipocampo/patología , Humanos , Imagen por Resonancia Magnética
7.
Epilepsy Behav ; 142: 109146, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-37075509

RESUMEN

The purpose of our study was to explore how people with epilepsy fared during two of the most stringent 4-month society-wide COVID-19-related pandemic restrictions in Ireland, in 2020 and one year later in 2021. This was in the context of their seizure control, lifestyle factors, and access to epilepsy-related healthcare services. A 14-part questionnaire was administered to adults with epilepsy during virtual specialist epilepsy clinics in a University Hospital in Dublin, Ireland at the end of the two lockdowns. People with epilepsy were questioned on their epilepsy control, lifestyle factors, and quality of epilepsy-related medical care, compared to pre-COVID times. The study sample consisted of two separate cohorts of those diagnosed with epilepsy (100 (51.8%) in 2020, and 93 (48.2%) in 2021, with similar baseline characteristics. There was no significant change in seizure control or lifestyle factors from 2020 to 2021, except for deterioration in anti-seizure medication (ASM) adherence in 2021 compared to 2020 (p = 0.028). There was no correlation between ASM adherence and other lifestyle factors. Over the two years, poor seizure control was significantly associated with poor sleep (p < 0.001) and average seizure frequency in a month (p = 0.007). We concluded that there was no significant difference between seizure control or lifestyle factors between the two most stringent lockdowns in Ireland, in 2020 and 2021. Furthermore, people with epilepsy reported that throughout the lockdowns access to services was well maintained, and they felt well supported by their services. Contrary to the popular opinion that COVID lockdowns greatly affected patients with chronic diseases, we found that those with epilepsy attending our service remained largely stable, optimistic, and healthy during this time.


Asunto(s)
COVID-19 , Epilepsia , Adulto , Humanos , COVID-19/epidemiología , Pandemias , Control de Enfermedades Transmisibles , Epilepsia/complicaciones , Epilepsia/epidemiología , Epilepsia/terapia , Encuestas y Cuestionarios
8.
Clin Neuropathol ; 42(6): 201-211, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37840527

RESUMEN

Traumatic brain injury (TBI) is a leading cause of morbidity and mortality worldwide. TBI ranges from mild to severe and is a recognized risk factor for later neurodegenerative conditions including chronic traumatic encephalopathy (CTE), Alzheimer disease (AD) and Parkinson disease (PD). The development of CTE is typically associated with repetitive exposure to mild TBI (mTBI), while a single moderate-to-severe TBI is considered a risk factor for AD and PD. Polypathology is common, and the lines between these conditions post TBI can be somewhat blurred. The mechanisms through which TBI leads to future neurodegeneration are not well understood. Heterogeneity and distance from the injury or injuries and individual genetic and environmental factors make clinical studies difficult. We present the case of an 82-year-old man who died 4 years after developing a phenotypically mixed dementia with neuropsychiatric features and parkinsonism. He had a remote history of a severe TBI 40 years prior, following a road traffic accident which caused a large right frontal injury, requiring neurosurgical intervention. Post-mortem neuropathological examination demonstrated abnormal phosphorylated-Tau (p-Tau), beta-amyloid plaques (Aß) and α-synuclein deposition. Spatial immunohistochemical analysis demonstrated increased perivascular accumulation of p-Tau with blood-brain barrier (BBB) disruption at the site of injury, which decreased with distance from the injury site. The appearances are suggestive of initial vascular disruption with persisting BBB disruption as a driver of the pathology.


Asunto(s)
Enfermedad de Alzheimer , Lesiones Traumáticas del Encéfalo , Encefalopatía Traumática Crónica , Masculino , Humanos , Anciano de 80 o más Años , Enfermedad de Alzheimer/patología , Lesiones Traumáticas del Encéfalo/complicaciones , Proteínas tau/metabolismo , Encefalopatía Traumática Crónica/patología , Péptidos beta-Amiloides , Encéfalo/patología
9.
Neuropathol Appl Neurobiol ; 48(1): e12758, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34388852

RESUMEN

AIMS: The causes of distinct patterns of reduced cortical thickness in the common human epilepsies, detectable on neuroimaging and with important clinical consequences, are unknown. We investigated the underlying mechanisms of cortical thinning using a systems-level analysis. METHODS: Imaging-based cortical structural maps from a large-scale epilepsy neuroimaging study were overlaid with highly spatially resolved human brain gene expression data from the Allen Human Brain Atlas. Cell-type deconvolution, differential expression analysis and cell-type enrichment analyses were used to identify differences in cell-type distribution. These differences were followed up in post-mortem brain tissue from humans with epilepsy using Iba1 immunolabelling. Furthermore, to investigate a causal effect in cortical thinning, cell-type-specific depletion was used in a murine model of acquired epilepsy. RESULTS: We identified elevated fractions of microglia and endothelial cells in regions of reduced cortical thickness. Differentially expressed genes showed enrichment for microglial markers and, in particular, activated microglial states. Analysis of post-mortem brain tissue from humans with epilepsy confirmed excess activated microglia. In the murine model, transient depletion of activated microglia during the early phase of the disease development prevented cortical thinning and neuronal cell loss in the temporal cortex. Although the development of chronic seizures was unaffected, the epileptic mice with early depletion of activated microglia did not develop deficits in a non-spatial memory test seen in epileptic mice not depleted of microglia. CONCLUSIONS: These convergent data strongly implicate activated microglia in cortical thinning, representing a new dimension for concern and disease modification in the epilepsies, potentially distinct from seizure control.


Asunto(s)
Epilepsia , Microglía , Animales , Encéfalo , Células Endoteliales , Epilepsia/metabolismo , Ratones , Microglía/metabolismo , Convulsiones
10.
Epilepsia ; 63(6): 1563-1570, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35298028

RESUMEN

OBJECTIVE: Levetiracetam (LEV) is an effective antiseizure medicine, but 10%-20% of people treated with LEV report psychiatric side-effects, and up to 1% may have psychotic episodes. Pharmacogenomic predictors of these adverse drug reactions (ADRs) have yet to be identified. We sought to determine the contribution of both common and rare genetic variation to psychiatric and behavioral ADRs associated with LEV. METHODS: This case-control study compared cases of LEV-associated behavioral disorder (n = 149) or psychotic reaction (n = 37) to LEV-exposed people with no history of psychiatric ADRs (n = 920). All samples were of European ancestry. We performed genome-wide association study (GWAS) analysis comparing those with LEV ADRs to controls. We estimated the polygenic risk scores (PRS) for schizophrenia and compared cases with LEV-associated psychotic reaction to controls. Rare variant burden analysis was performed using exome sequence data of cases with psychotic reactions (n = 18) and controls (n = 122). RESULTS: Univariate GWAS found no significant associations with either LEV-associated behavioural disorder or LEV-psychotic reaction. PRS analysis showed that cases of LEV-associated psychotic reaction had an increased PRS for schizophrenia relative to contr ols (p = .0097, estimate = .4886). The rare-variant analysis found no evidence of an increased burden of rare genetic variants in people who had experienced LEV-associated psychotic reaction relative to controls. SIGNIFICANCE: The polygenic burden for schizophrenia is a risk factor for LEV-associated psychotic reaction. To assess the clinical utility of PRS as a predictor, it should be tested in an independent and ideally prospective cohort. Larger sample sizes are required for the identification of significant univariate common genetic signals or rare genetic signals associated with psychiatric LEV ADRs.


Asunto(s)
Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos , Estudio de Asociación del Genoma Completo , Anticonvulsivantes/efectos adversos , Estudios de Casos y Controles , Predisposición Genética a la Enfermedad/genética , Humanos , Levetiracetam/efectos adversos , Farmacogenética , Estudios Prospectivos
11.
J Viral Hepat ; 28(4): 637-650, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33372320

RESUMEN

Cognitive impairment occurs in 30%-50% of patients with non-cirrhotic chronic hepatitis C virus (HCV) infection. Exercise is beneficial in preventing and treating cognitive impairment and cardiometabolic abnormalities in many chronic inflammatory diseases, but there are few studies investigating the impact of exercise in HCV infection. The study aimed to assess the effect of a 12-week aerobic exercise intervention on cognition and extrahepatic manifestations in individuals with HCV. In this nonrandomized controlled pilot study, individuals with HCV participated in a 12-week aerobic exercise intervention. Outcome measures included cognition (Montreal Cognitive Assessment [MOCA], Trail Making Test A & B [TMT-A; TMT-B], Digit Symbol Test [DST]), cardiorespiratory fitness (estimated V˙O2max ), physical activity (accelerometry), anthropometry, quality of life (depression; fatigue; sleep quality) and biochemical markers. Outcomes were assessed at baseline (T0), intervention completion (T1) and 12 weeks after intervention completion (T2). Thirty-one patients completed the study (exercise group n = 13, control group n = 18). In the exercise group, cognition improved at T1 in the TMT-A (31% mean improvement, p = 0.019), TMT-B (15% mean improvement, p = 0.012) time and MOCA (14% mean improvement, p ≤ 0.001). These improvements were not maintained at T2. Depression (p = 0.038), sleep quality (p = 0.002), fatigue (p = 0.037) and estimated V˙O2max (7.8 mL kg-1  min-1 [22%] mean increase, p = 0.004) also improved at T1. In conclusion, this study demonstrates the benefits of a 12-week aerobic exercise intervention in improving cognition, quality of life and cardiorespiratory fitness in individuals with HCV. Larger studies are needed to confirm these findings and strategies for continued exercise engagement in individuals with HCV are warranted for sustained benefits.


Asunto(s)
Disfunción Cognitiva , Hepatitis C Crónica , Cognición , Disfunción Cognitiva/terapia , Ejercicio Físico , Terapia por Ejercicio , Hepatitis C Crónica/complicaciones , Humanos , Calidad de Vida
12.
Epilepsia ; 62(11): 2651-2666, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34472627

RESUMEN

OBJECTIVE: This study aimed to determine the prevalence of epilepsy in four European countries (Austria, Denmark, Ireland, and Romania) employing a standard methodology. The study was conducted under the auspices of ESBACE (European Study on the Burden and Care of Epilepsy). METHODS: All hospitals and general practitioners serving a region of at least 50 000 persons in each country were asked to identify patients living in the region who had a diagnosis of epilepsy or experienced a single unprovoked seizure. Medical records were accessed, where available, to complete a standardized case report form. Data were sought on seizure frequency, seizure type, investigations, etiology, comorbidities, and use of antiseizure medication. Cases were validated in each country, and the degree of certainty was graded as definite, probable, or suspect cases. RESULTS: From a total population of 237 757 in the four countries, 1988 (.8%) patients were identified as potential cases of epilepsy. Due to legal and ethical issues in the individual countries, medical records were available for only 1208 patients, and among these, 113 had insufficient clinical information. The remaining 1095 cases were classified as either definite (n = 706, 64.5%), probable (n = 191, 17.4%), suspect (n = 153, 14.0%), or not epilepsy (n = 45, 4.1%). SIGNIFICANCE: Although a precise prevalence estimate could not be generated from these data, the study found a high validity of epilepsy classification among evaluated cases (95.9%). More generally, this study highlights the significant challenges facing epidemiological research methodologies that are reliant on patient consent and retrospective chart review, largely due to the introduction of data protection legislation during the study period. Documentation of the epilepsy diagnosis was, in some cases, relatively low, indicating a need for improved guidelines for assessment, follow-up, and documentation. This study highlights the need to address the concerns and requirements of recruitment sites to engage in epidemiological research.


Asunto(s)
Epilepsia , Epilepsia/diagnóstico , Epilepsia/tratamiento farmacológico , Epilepsia/epidemiología , Europa (Continente)/epidemiología , Humanos , Prevalencia , Estudios Retrospectivos , Convulsiones/prevención & control
13.
Brain ; 143(8): 2454-2473, 2020 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-32814957

RESUMEN

The epilepsies are commonly accompanied by widespread abnormalities in cerebral white matter. ENIGMA-Epilepsy is a large quantitative brain imaging consortium, aggregating data to investigate patterns of neuroimaging abnormalities in common epilepsy syndromes, including temporal lobe epilepsy, extratemporal epilepsy, and genetic generalized epilepsy. Our goal was to rank the most robust white matter microstructural differences across and within syndromes in a multicentre sample of adult epilepsy patients. Diffusion-weighted MRI data were analysed from 1069 healthy controls and 1249 patients: temporal lobe epilepsy with hippocampal sclerosis (n = 599), temporal lobe epilepsy with normal MRI (n = 275), genetic generalized epilepsy (n = 182) and non-lesional extratemporal epilepsy (n = 193). A harmonized protocol using tract-based spatial statistics was used to derive skeletonized maps of fractional anisotropy and mean diffusivity for each participant, and fibre tracts were segmented using a diffusion MRI atlas. Data were harmonized to correct for scanner-specific variations in diffusion measures using a batch-effect correction tool (ComBat). Analyses of covariance, adjusting for age and sex, examined differences between each epilepsy syndrome and controls for each white matter tract (Bonferroni corrected at P < 0.001). Across 'all epilepsies' lower fractional anisotropy was observed in most fibre tracts with small to medium effect sizes, especially in the corpus callosum, cingulum and external capsule. There were also less robust increases in mean diffusivity. Syndrome-specific fractional anisotropy and mean diffusivity differences were most pronounced in patients with hippocampal sclerosis in the ipsilateral parahippocampal cingulum and external capsule, with smaller effects across most other tracts. Individuals with temporal lobe epilepsy and normal MRI showed a similar pattern of greater ipsilateral than contralateral abnormalities, but less marked than those in patients with hippocampal sclerosis. Patients with generalized and extratemporal epilepsies had pronounced reductions in fractional anisotropy in the corpus callosum, corona radiata and external capsule, and increased mean diffusivity of the anterior corona radiata. Earlier age of seizure onset and longer disease duration were associated with a greater extent of diffusion abnormalities in patients with hippocampal sclerosis. We demonstrate microstructural abnormalities across major association, commissural, and projection fibres in a large multicentre study of epilepsy. Overall, patients with epilepsy showed white matter abnormalities in the corpus callosum, cingulum and external capsule, with differing severity across epilepsy syndromes. These data further define the spectrum of white matter abnormalities in common epilepsy syndromes, yielding more detailed insights into pathological substrates that may explain cognitive and psychiatric co-morbidities and be used to guide biomarker studies of treatment outcomes and/or genetic research.


Asunto(s)
Encéfalo/patología , Síndromes Epilépticos/patología , Sustancia Blanca/patología , Adulto , Imagen de Difusión por Resonancia Magnética/métodos , Femenino , Humanos , Interpretación de Imagen Asistida por Computador/métodos , Masculino , Persona de Mediana Edad
14.
Epilepsy Behav ; 122: 108197, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-34273742

RESUMEN

OBJECTIVES: Electronic patient portals (ePortals) can facilitate greater healthcare democratization by providing patients and/or their authorized care partners with secure access to their medical records when and where needed. Such democratization can promote effective healthcare provider-patient partnerships, shared decision-making, and greater patient engagement in managing their health condition. This study examined the usefulness of providing individualized services and care in epilepsy (PiSCES), an epilepsy ePortal, as an enabler of more democratized epilepsy care. METHODS: Seventy-two individuals with epilepsy and 18 care partners were invited to report on their experience of interacting via PiSCES with clinical documents (epilepsy care summary record; epilepsy clinic letters) authored about them by healthcare providers. The OpenNotes reporting tool was adapted to capture participant experience. RESULTS: Twenty-five percent of invited patients and 44% of invited care partners reported on interacting with their epilepsy care summary; 14% of patients and 67% of care partners invited reported on their epilepsy clinic letters. Participant testimonials illustrate the value of PiSCES in: promoting autonomy, aiding memory, developing the knowledgeable patient, and enhancing healthcare partnerships. Ninety-six percent and 100% of respondents, respectively, reported understanding their epilepsy care summary and epilepsy clinic letter; 77% said the summary described their epilepsy history to date; 96% indicated that the letter provided an accurate description of their clinical encounter; 92% and 96%, respectively, valued access to their summary record and clinic letters; 77% of summary record and 73% clinic letter respondents reported learning something about their epilepsy or the healthcare service via PiSCES. Illustrating their potential patient and care partner safety role, 42% respondents identified inaccuracies in their clinical documents which were subsequently resolved by a clinician. SIGNIFICANCE: In the post-digital world highly customized on-demand products and services have come to be expected. Similarly, in epilepsy care, technologies such as PiSCES can enable more personalized, transparent, and engaging services.


Asunto(s)
Epilepsia , Portales del Paciente , Registros Electrónicos de Salud , Electrónica , Epilepsia/terapia , Personal de Salud , Humanos , Participación del Paciente
15.
Epilepsy Behav ; 115: 107675, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33342712

RESUMEN

As part of our ongoing interest in patient- and family-centered care in epilepsy, we began, before the onset of the CoVID-19 pandemic, to evaluate the concerns and preferences of those delivering and receiving care via telemedicine. CoVID-19 arrived and acted as an unexpected experiment in nature, catalyzing telemedicine's widespread implementation across many disciplines of medicine. The arrival of CoVID-19 in Ireland gave us the opportunity to record these perceptions pre- and post-CoVID. Data were extracted from the National Epilepsy Electronic Patient Record (EEPR). Power BI Analytics collated data from two epilepsy centers in Dublin. Analysis of data on reasons for using the telephone support line was conducted. A subset of patients and clinicians who attended virtual encounters over both periods were asked for their perception of telemedicine care through a mixed methods survey. Between 23rd December 2019 and 23rd March 2020 (pre-CoVID era), a total of 1180 patients were seen in 1653 clinical encounters. As part of a telemedicine pilot study, 50 of these encounters were scheduled virtual telephone appointments. Twenty eight surveys were completed by clinicians and 18 by patients during that period. From 24th March 2020 to 24th June 2020, 1164 patients were seen in 1693 encounters of which 729 (63%) patients were seen in 748 scheduled virtual encounters. 118 clinician impressions were captured through an online survey and 75 patients or carers completed a telephone survey during the post-CoVID era. There was no backlog of appointments or loss of care continuity forced by the pandemic. Clinicians expressed strong levels of satisfaction, but some doubted the suitability of new patients to the service or candidates for surgery receiving care via telemedicine. Patients reported positive experiences surrounding telephone appointments comparing them favorably to face-to-face encounters. The availability of a shared EEPR demonstrated no loss of care contact for patients with epilepsy. The survey showed that telemedicine is seen as an effective and satisfactory method of delivering chronic outpatient care.


Asunto(s)
COVID-19/psicología , Manejo de la Enfermedad , Registros Electrónicos de Salud , Epilepsia/psicología , Relaciones Médico-Paciente , Telemedicina/métodos , Adulto , Citas y Horarios , COVID-19/epidemiología , COVID-19/prevención & control , Cuidadores/psicología , Epilepsia/epidemiología , Epilepsia/terapia , Femenino , Humanos , Irlanda/epidemiología , Masculino , Persona de Mediana Edad , Evaluación del Resultado de la Atención al Paciente , Proyectos Piloto , Encuestas y Cuestionarios
16.
Epilepsy Behav ; 115: 107664, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33334718

RESUMEN

BACKGROUND: Coproduced epilepsy care sees people with epilepsy (PwE), their care-proxies, and healthcare providers (HCPs), working together as partners to build strong relationships, improve communication, trust, and share decision-making. Coproduction underpins good quality patient- and family-centered care (PFCC) that is responsive to individual patient needs, preferences, and values. By facilitating information sharing and exchange between partners, electronic patient portals (ePortal) can enable coproduction. This paper explores what HCPs, PwE, and their care-proxies value from their user experience of PiSCES, the Irish epilepsy ePortal. METHODS: A purposeful sample of actors involved in the receipt and delivery of epilepsy care and services were recruited via adult epilepsy centers at St James's and Beaumont Hospitals in Dublin. Interactive codesign sessions, surveys, and focus groups were used to elicit perspectives from PwE, care-proxies, and HCPs to understand their perception of how PiSCES could enhance or inhibit the epilepsy care process. RESULTS: Results illustrate that participants welcome the role PiSCES can play in: empowering PwE/care-proxies, strengthening confidence in the healthcare system; aiding memory; advancing health literacy, motivating PwE to understand their condition better; acting as a passport of care between different clinical settings; and creating a foundation for stronger coproduction partnerships. PiSCES was generally embraced; however, some HCPs expressed plausible concerns about how clinical implementation might impact their work practices. CONCLUSION: "Nothing about me without me" is a core value of the PiSCES initiative, recognizing that people need to be included in the planning of their own treatment and care. Our data show that PwE, their care-proxies, and HCPs value PiSCES potential, particularly in bolstering healthcare partnerships that foster inclusion, confidence, and trust.


Asunto(s)
Epilepsia , Portales del Paciente , Adulto , Epilepsia/terapia , Grupos Focales , Personal de Salud , Humanos , Investigación Cualitativa
17.
BMC Med Ethics ; 22(1): 9, 2021 02 04.
Artículo en Inglés | MEDLINE | ID: mdl-33541335

RESUMEN

BACKGROUND: This manuscript presents a framework to guide the identification and assessment of ethical opportunities and challenges associated with electronic patient records (EPR). The framework is intended to support designers, software engineers, health service managers, and end-users to realise a responsible, robust and reliable EPR-enabled healthcare system that delivers safe, quality assured, value conscious care. METHODS: Development of the EPR applied ethics framework was preceded by a scoping review which mapped the literature related to the ethics of EPR technology. The underlying assumption behind the framework presented in this manuscript is that ethical values can inform all stages of the EPR-lifecycle from design, through development, implementation, and practical application. RESULTS: The framework is divided into two parts: context and core functions. The first part 'context' entails clarifying: the purpose(s) within which the EPR exists or will exist; the interested parties and their relationships; and the regulatory, codes of professional conduct and organisational policy frame of reference. Understanding the context is required before addressing the second part of the framework which focuses on EPR 'core functions' of data collection, data access, and digitally-enabled healthcare. CONCLUSIONS: The primary objective of the EPR Applied Ethics Framework is to help identify and create value and benefits rather than to merely prevent risks. It should therefore be used to steer an EPR project to success rather than be seen as a set of inhibitory rules. The framework is adaptable to a wide range of EPR categories and can cater for new and evolving EPR-enabled healthcare priorities. It is therefore an iterative tool that should be revisited as new EPR-related state-of-affairs, capabilities or activities emerge.


Asunto(s)
Registros Electrónicos de Salud , Ingeniería , Humanos
18.
Epilepsia ; 61(9): 1894-1905, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32668026

RESUMEN

OBJECTIVES: The current coronavirus disease 2019 (COVID-19) pandemic stresses an urgency to accelerate much-needed health service reform. Rapid and courageous changes being made to address the immediate impact of the pandemic are demonstrating that the means and technology to enable new models of health care exist. For example, innovations such as electronic patient portals (ePortal) can facilitate (a) radical reform of outpatient care; (b) cost containment in the economically constrained aftermath of the pandemic; (c) environmental sustainability by reduction of unnecessary journeys/transport. Herein, the development of Providing Individualised Services and Care in Epilepsy (PiSCES), an ePortal to the Irish National Epilepsy Electronic Patient Record, is demonstrated. This project, which pre-dates the COVID-19 crisis, aims to facilitate better patient- and family-centered epilepsy care. METHODS: A combination of ethnographic research, document analysis, and joint application design sessions was used to elicit PiSCES requirements. From these, a specification of desired modules of functionality was established and guided the software development. RESULTS: PiSCES functional features include "My Epilepsy Care Summary," "My Epilepsy Care Goals," "My Epilepsy Clinic Letters," "Help Us Measure Your Progress," "Prepare For Your Clinic Visit," "Information for Your Healthcare Provider." The system provides people with epilepsy access to, and engages them as co-authors of, their own medical record. It can promote improved patient-clinician partnerships and facilitate patient self-management. SIGNIFICANCE: In the aftermath of COVID-19, it is highly unlikely that the healthcare sector will return to a "business as usual" way of delivering services. The pandemic is expected to accelerate adoption of innovations like PiSCES. It is therefore a catalyst for change that will deliver care that is more responsive to individual patient needs and preferences.


Asunto(s)
COVID-19 , Epilepsia , Portales del Paciente , Telemedicina/métodos , Humanos , SARS-CoV-2
19.
Epilepsy Behav ; 104(Pt A): 106896, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31986441

RESUMEN

Although 70% of people with epilepsy (PWE) achieve seizure freedom following an appropriate antiepileptic drug (AED) regime, evidence suggests that adherence to AEDs by PWE is suboptimal. Nonadherence to AEDs is associated with increased morbidity, mortality, emergency department visits, and hospitalizations, with reduced adherence also correlating to a lower quality of life, decreased productivity, and loss of employment. Furthermore, research indicates that medication errors which are widespread in chronic disease are less well studied in epilepsy but are likely also to contribute to avoidable disease morbidity and mortality. The goals of this project were to determine rates of medication adherence by self-reported questionnaire and its links to perceived medication error in a cohort of PWE attending a general epilepsy outpatient clinic. Following a plan-do-study-act cycle, it was found that the most appropriate methodology for conducting was in the form of a bespoke 9-item self-administered questionnaire. One hundred eighty-six PWE completed a nine-question questionnaire asking patients about their own medication adherence habits and their perception that they were previously exposed to medication error. This study found that 41% of respondents reported suboptimal adherence to AED therapy, while 28.5% of respondents self-reported that they unintentionally do not take their AED medication on an occasional, regular, or frequent basis. A 5.9% of respondents self-reported that they intentionally do not take their medication as prescribed. A 6% of respondents self-reported that they are both unintentionally and intentionally nonadherent to their AED therapy. No significant associations were demonstrated between age, sex, perceived effectiveness of medication, feelings of stigma/embarrassment, adverse effects or additional neurological comorbidities, and unintentional or intentional nonadherence. A 28.5% of respondents to the questionnaire reported that they perceived themselves to have been subjected to medication error. Prescribing errors were the most common form of perceived medication error, followed by dispensing errors, then administration errors. Significant associations were found between ineffective medication and feelings of stigma or embarrassment about epilepsy with perceived prescribing errors. Intentional nonadherence to medication was significantly associated with perceived dispensing errors.


Asunto(s)
Anticonvulsivantes/uso terapéutico , Epilepsia/tratamiento farmacológico , Epilepsia/psicología , Cumplimiento de la Medicación/psicología , Errores de Medicación/psicología , Autoinforme/normas , Adulto , Estudios de Cohortes , Femenino , Humanos , Masculino , Errores de Medicación/efectos adversos , Persona de Mediana Edad , Calidad de Vida/psicología , Estigma Social , Encuestas y Cuestionarios
20.
Epilepsy Behav ; 102: 106668, 2020 01.
Artículo en Inglés | MEDLINE | ID: mdl-31739100

RESUMEN

The National Clinical Programme for Epilepsy (NCPE) in Ireland aims to deliver a holistic model of integrated person-centered care (PCC) that addresses the full spectrum of biomedical and psychosocial needs of people with epilepsy (PwE). However, like all strategic plans, the model encompasses an inherent set of assumptions about the readiness of the environment to implement and sustain the actions required to realize its goals. In this study, through the lens of PwE, the Irish epilepsy care setting was explored to understand its capacity to adopt a new paradigm of integrated PCC. Focus groups and semi-structured one-to-one interviews were employed to capture the qualitative experiences of a sample of Irish PwE (n = 27) in the context of the care that they receive. Participants were from different regions of the country and were aged between 18 and 55 years with 1 to 42 years since diagnosis (YSD). Highlighting a gap between policy intent and action on the ground, findings suggest that patient readiness to adopt a new model of care cannot be assumed. Expectations, preferences, behaviors, and values of PwE may sustain the more traditional constructions of healthcare delivery rather than the integrated PCC goals of reform. These culturally constituted perceptions illustrate that PwE do not instinctively appreciate the goals of healthcare reform nor the different behavior expected from them within a reformed healthcare system. Recalibrating deep-rooted patient views is necessary to accomplish the aspirations of integrated PCC. Patient engagement emphasizing the meaningful role that they can play in shaping their healthcare services is vital.


Asunto(s)
Epilepsia/psicología , Epilepsia/terapia , Participación del Paciente/psicología , Atención Dirigida al Paciente/normas , Investigación Cualitativa , Adolescente , Adulto , Epilepsia/epidemiología , Femenino , Grupos Focales , Humanos , Irlanda/epidemiología , Persona de Mediana Edad , Participación del Paciente/métodos , Atención Dirigida al Paciente/métodos , Autocuidado/métodos , Autocuidado/psicología , Autocuidado/normas , Adulto Joven
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