Probability of Remission of the Main Epileptic Syndromes in Childhood.

AIM: To determine the long-term probability of remission without antiepileptic treatment of common epileptic syndromes and of children without a specific syndromic diagnosis. PATIENTS AND METHODS: All children less than 14 years old with 2 or more unprovoked seizures seen at our hospital between June 1, 1994, and March 1, 2011 (n = 680), were included and prospectively followed up until August 15, 2020. Syndromic diagnosis was made retrospectively but blinded to subsequent evolution, employing the data available at 6 months after diagnosis and under predefined operational criteria. RESULTS: The Kaplan-Meier estimate of the probability of achieving a remission period of at least 5 years, with neither seizures nor antiepileptic treatment at 14 years was 97% for well-defined childhood epilepsy with centrotemporal spikes, 82% for uncertain childhood epilepsy with centrotemporal spikes, 85% for well-defined Panayiotopoulos syndrome, 88% for uncertain Panayiotopoulos syndrome, 93% for nonfamilial self-limited infantile epilepsy, 100% for familial self-limited infantile epilepsy, 86% for absence epilepsy, 6% for juvenile myoclonic epilepsy, 71% for cryptogenic West syndrome, 72% for patients with no associated neurologic deficits and no specific syndromic diagnosis, 65% for symptomatic West syndrome, and 40% for patients with associated neurologic deficits and no specific syndromic diagnosis. CONCLUSIONS: The study results highlight the long-term outcomes of the main epileptic syndromes and also of the patients with no syndromic diagnosis.

Pronóstico de la epilepsia de la infancia con puntas centrotemporales: utilidad clínica de unos criterios diagnósticos objetivos / Prognosis of benign childhood epilepsy with centrotemporal spikes: clinical utility of objective diagnostic criteria

INTRODUCCIÓN: Los estudios sobre el pronóstico de la epilepsia de la infancia con puntas centrotemporales (EIPCT), la mayoría retrospectivos, incluyen a pacientes con características clínicas muy heterogéneas. OBJETIVO: Investigar el valor pronóstico de unos criterios diagnósticos objetivos de EIPCT aplicados a los seis meses de evolución de la epilepsia. PACIENTES Y MÉTODOS: Se incluyó prospectivamente a todos los pacientes con una o más crisis epilépticas no provocadas (n = 827). Se investigó el pronóstico y las características clínicas de cinco grupos de pacientes, definidos según la presencia de punta-onda centrotemporal (POCT) y de los siguientes signos: bloqueo del habla o disartria, contracciones tónicas o clónicas hemifaciales y sialorrea prominente. Grupo A (dos o tres signos y POCT), grupo B (un signo y POCT), grupo C (ningún signo y POCT), grupo D (dos o tres signos sin POCT), grupo E (crisis tonicoclónicas generalizadas y POCT). RESULTADOS: Se clasificaron 52, 12, 12, 22 y 8 casos, respectivamente, en los grupos A, B, C, D y E. Los pacientes de los cinco grupos presentaron una semiología similar, pero se observaron diferencias en la probabilidad de alcanzar una remisión inicial de tres años sin crisis ni tratamiento antiepiléptico: grupo A (98%), grupo B (92%), grupo C (90%), grupo D (77%) y grupo E (100%). La diferencia entre los grupos A y D fue estadísticamente significativa. CONCLUSIÓN: Los casos del grupo A podrían considerarse como casos bien definidos de EIPCT; los casos de los grupos B, C y E, como casos probables, y los del grupo D deberían excluirse del diagnóstico

INTRODUCTION: Studies about childhood epilepsy with centrotemporal spikes (CECTS), most of them retrospective, include patients with highly heterogeneous features. AIM: To investigate the prognostic value of objective diagnostic criteria for CECTS applied at six month of evolution of epilepsy. PATIENTS AND METHODS: All patients with one or more unprovoked epileptic seizures (n = 827) were prospectively included. We investigated prognosis and clinical features of five groups of patients defined in accordance with the presence of centrotemporal spikes (CTS) and the following signs: speech arrest or dysarthria; hemifacial tonic or clonic contractions; and prominent sialorrhea. Group A (two or three signs and CTS), group B (one sign and CTS), group C (no sign and CTS), group D (two or three signs without CTS), group E (tonic-clonic generalized seizures and CTS). RESULTS: 52, 12, 12, 22 and 8 cases were classified respectively into groups A, B, C, D and E. Patients of the five groups presented a similar semiology but differences in the probability of attaining a 3-years remission without antiepileptic treatment were observed: group A (98%), group B (92%), group C (90%), group D (77%), group E (100%). The difference between groups A and D was statistically significant. CONCLUSION. Cases of group A could be considered as well-defined cases of CECTS; cases of groups B, C and E, as probable cases of CECTS, and cases of group D must be excluded from the diagnosis

Frecuencia, semiología y pronóstico del síndrome de Panayiotopoulos / Frequency, semiology and prognosis of Panayiotopoulos síndrome

Introducción. El síndrome de Panayiotopulos (SP) es un síndrome epiléptico sobre el que hasta la fecha se ha publicado únicamente un pequeño número de estudios. Objetivo. Estudiar la frecuencia, la semiología y el pronóstico del SP. Pacientes y métodos. Todos los pacientes con una o más crisis epilépticas no provocadas que consultaron en nuestro hospital entre el 1 de junio de 1994 y el 1 de marzo de 2011 (n = 827) fueron incluidos y seguidos prospectivamente hasta el 30 de abril de 2018. Se diagnosticó de SP a los pacientes que cumplieron los siguientes criterios a los seis meses de evolución: una o más crisis no provocadas con síntomas predominantemente autonómicos, presencia de complejos de puntas y ondas lentas focales de gran amplitud y «morfología funcional», ausencia de déficit neurológico previo y neuroimagen normal. Resultados. Cumplieron los criterios de SP 27 casos (3,3%). La semiología de las crisis fue similar a la descrita por otros autores. Un 88% de casos alcanzó una remisión inicial de tres años sin tratamiento antiepiléptico (sin crisis y sin tratamiento durante tres años). Sesenta y dos pacientes (7,5%) cumplieron todos los criterios de SP, a excepción de la presencia de las típicas alteraciones en el electroencefalograma. La semiología de estos casos fue similar, y un 85% alcanzó una remisión inicial de tres años sin tratamiento antiepiléptico. Conclusiones. En la práctica diaria son frecuentes los pacientes con crisis sugestivas de SP, pero sin las típicas alteraciones en el electroencefalograma. Este grupo de pacientes también presenta un buen pronóstico

Introduction. Panayiotopoulos syndrome (PS) is an epileptic syndrome of childhood. Until now only a small number of studies have been published about this syndrome. Aim. To study the frequency, semiology and prognosis of PS. Patients and methods. all patients with one or more unprovoked seizures seen at our hospital between 1 June 1994 and 1 March 2011 (n = 827) were included and prospectively followed until 30 April 2018. A diagnosis of PS was made in patients that fulfilled all the following criteria at six month of evolution: seizures with predominantly autonomic symptoms, presence of high amplitude, ‘functional morphology’, focal spikes and slow wave complexes in any location, absence of previous neurological deficit and normal neuroimaging. Results. 27 cases (3,3%) met the diagnostic criteria. Semiology of the seizures was similar to that described by other authors. 88% of these cases attained a 3-year initial remission without antiepileptic treatment (three years both without seizures and without treatment). 62 cases (7,5%) met all the diagnostic criteria with the exception of the presence of the EEG features. Semiology of these cases was similar and 85% attained a 3-year initial remission without antiepileptic treatment. Conclusions. In daily practice, patients with a clinical picture suggestive of PS but without the typical EEG features are common. This group of patients also have a good outcome

Frecuencia, semiología y pronóstico de la epilepsia infantil benigna / Frequency, semiology and prognosis of benign infantile epilepsy

Introducción. La epilepsia infantil benigna es un síndrome epiléptico sobre el que hasta ahora se ha publicado tan sólo un pequeño número de series de casos. Objetivo. Estudiar la frecuencia, semiología y pronóstico de la epilepsia infantil benigna. Pacientes y métodos. Los 827 pacientes con una o más crisis epilépticas no provocadas que consultaron en nuestro hospital entre el 1 de junio de 1994 y el 1 de marzo de 2011 fueron incluidos y seguidos prospectivamente. Se diagnosticaron de epilepsia infantil benigna los pacientes que cumplieron los siguientes criterios a los seis meses de evolución: una o más crisis focales o generalizadas, inicio antes de los 24 meses, ausencia de déficits neurológicos y electroencefalograma y neuroimagen normales. Resultados. Cumplieron los criterios diagnósticos 77 casos (9%). La semiología de las crisis fue similar a la de otras crisis focales en niños menores de 24 meses. Un 25% de los pacientes permaneció como con crisis aisladas. Entre los de dos o más crisis epilépticas, la probabilidad de alcanzar una remisión inicial de tres años sin tratamiento antiepiléptico fue del 86%. En el subgrupo de pacientes con crisis focales sin antecedentes familiares, la probabilidad fue del 74%, y en cinco casos se detectó posteriormente un retraso psicomotor o discapacidad intelectual. Conclusiones. La epilepsia infantil benigna es un síndrome epiléptico frecuente. La semiología de las crisis no es útil para caracterizar el síndrome. El diagnóstico de epilepsia infantil benigna a los seis meses de evolución implica un pronóstico razonablemente bueno, pero posiblemente no tanto como el de otras epilepsias autolimitadas de la infancia

Introduction. Benign infantile epilepsy is an epileptic syndrome of infancy. Until now, only a small number of case-series have been published. Aim. To study the frequency, semiology and prognosis of benign infantile epilepsy. Patients and methods. The 827 patients with one or more epileptic seizures seen at our hospital between 1 June 1994 and 1 March 2011 were included and prospectively followed. A diagnosis of benign infantile epilepsy was made in patients that fulfilled the following criteria at six month of evolution: one or more focal and/or generalised seizures, onset before 24 months, no neurological deficit and normal neuroimaging and interictal EEG. Results. 77 cases (9%) met the diagnostic criteria. Semiology of the seizures was similar to that of other focal seizures in children under 24 months. 25% of the patients remained as isolated seizures. Among those with two or more seizures, the probability of achieving a 3 year initial remission without antiepileptic treatment was 86%. In the subgroup of patients with focal seizures without family history the probability was 74% and in five cases a global developmental delay/intellectual disability was detected thereafter. Conclusions. Benign infantile epilepsy is a frequent epileptic syndrome. Semiology of seizures is not useful to characterize the syndrome. A diagnosis of benign infantile epilepsy at six month of evolution implies a reasonably good prognosis, but possibly not as good as for other self-limited epilepsies of infancy

Metadona oral para el manejo del dolor neuropático de difícil control en la enfermedad de Fabry / Oral methadone for the management of difficult to control pain in Fabry disease

No disponible

Vanishing white matter disease in a spanish population.

Vanishing white matter (VWM) leukoencephalopathy is one of the most prevalent hereditary white matter diseases. It has been associated with mutations in genes encoding eukaryotic translation initiation factor (eIF2B). We have compiled a list of all the patients diagnosed with VWM in Spain; we found 21 children. The first clinical manifestation in all of them was spasticity, with severe ataxia in six patients, hemiparesis in one child, and dystonic movements in another. They suffered from progressive cognitive deterioration and nine of them had epilepsy too. In four children, we observed optic atrophy and three also had progressive macrocephaly, which is not common in VWM disease. The first two cases were diagnosed before the 1980s. Therefore, they were diagnosed by necropsy studies. The last 16 patients were diagnosed according to genetics: we found mutations in the genes eIF2B5 (13 cases), eIF2B3 (2 cases), and eIF2B4 (1 case). In our report, the second mutation in frequency was c.318A>T; patients with this mutation all followed a slow chronic course, both in homozygous and heterozygous states. Previously, there were no other reports to confirm this fact. We also found some mutations not described in previous reports: c.1090C>T in eIF2B4, c.314A>G in eIF2B5, and c.877C>T in eIF2B5.

Infant botulism in Andalusia (Southern Spain).

BACKGROUND: Infant botulism (IB) is caused by the intestinal colonization by Clostridium botulinum in the first year of life and its subsequent production of neurotoxins. Traditionally, IB has been associated to honey consumption. IB cases tend to cluster in geographic regions. In Europe, IB is a rare disorder. From 1976 through 2006, 65 cases were identified in 13 European countries. In Spain, in the last 15 years, most of the cases have been reported in one region, Andalusia (Southern Spain). A specific treatment for IB type A and type B (BabyBIG) is available outside of the United States since 2005. METHODS: and aims: We performed a retrospective review of IB cases detected in Andalusia since 1997 and compare them with the cases of IB reported in Europe. RESULTS: We identified 11 confirmed cases of IB in Andalusia since 1997, and 14 cases in Spain. Nine out of 11 cases were detected since 2007; none of these infants had been exposed to honey consumption. One case in 1997 and another in 2000 were associated to honey. Two cases were treated with BabyBIG in 2007. In the period 2006-2012 the cases of IB reported in Europe were 54. CONCLUSIONS: We identified a considerable increase in the incidence of IB since 2006. A tendency to a reduction in the number of cases of IB linked to honey consumption has also been identified. An increase in the exposure to these bacteria from the environment could be presumed. Clinicians should maintain a high index of suspicion for this treatable disorder.

A study of drug-resistant childhood epilepsy testing the new ILAE criteria.

PURPOSE: To test the new ILAE definition of drug-resistant epilepsy in a cohort study. METHODS: All children younger than 14 with two or more unprovoked seizures observed at our hospital between 1994 and 2008 were included. RESULTS: Five hundred and eight patients were followed for an average of 90 months (range 24-168). The probabilities of achieving seizure freedom, according to the ILAE criteria, with the first, second, third and fourth and subsequent therapeutic regimens were 65%, 29%, 27% and 21%, respectively. In the cohort, 87 patients met the criteria for drug-resistant epilepsy, which represents 19% of the treated patients (n=459) and 17% of the overall sample. The probability of meeting the criteria for drug-resistant epilepsy was 11%, 11% and 13% at 2, 6 and 10 years respectively. Sixty two percent of drug resistant cases were younger than 4 years old, 73% had an associated developmental delay and/or motor deficit, 42% had an identifiable structural cause of epilepsy and 32% had a specific epileptic syndrome. For drug-resistant patients who tried additional therapeutic regimens, the probability of achieving a seizure-free state without further recurrences was 23% and 27% at three and five years, respectively. CONCLUSIONS: Compared with more stringent criteria, the new ILAE criteria classify a greater number of patients with drug-resistant epilepsy. A significantly higher proportion of cases meeting this definition subsequently enter remission. A definition of drug-resistance that includes the additional criteria of failure of a third antiepileptic drug or high seizure frequency may better identify patients with truly drug-resistant epilepsy.