Mitochondrial developmental encephalopathy with bilateral optic neuropathy related to homozygous variants in IMMT gene.

IMMT gene codes for mitofilin, a mitochondrial inner membrane protein that regulates the morphology of mitochondrial cristae. The phenotype associated with mutations in this gene has not been yet established, but functional studies carried out show that its loss causes a mitochondrial alteration, both in the morphology of the mitochondrial crests and in their function. We present two cousins from an extended highly consanguineous family with developmental encephalopathy, hypotonia, nystagmus due to optic neuropathy. The likely pathogenic homozygous c.895A>G (p.Lys299Glu) variant in the IMMT gene co-segregates with the disease and associates altered mitochondrial cristae observed by electron microscopy.

Papel del acetato de eslicarbazepina en el tratamiento de la epilepsia de origen focal en la edad pediátrica: consideraciones prácticas / The role of eslicarbazepine acetate in the treatment of focal-onset epilepsy in pediatric age: practical issues

El acetato de eslicarbazepina (ESL) es un fármaco antiepiléptico (FAE) de tercera generación de la familia de las carboxamidas y estructuralmente relacionado con la carbamazepina y la oxcarbazepina, aunque presenta diferencias farmacológicas que pueden tener implicaciones de utilidad clínica relevantes. Desde 2009, en Europa, el ESL está indicado para su utilización en adultos como terapia adyuvante en pacientes con crisis de inicio parcial (actualmente denominada de inicio focal), con o sin generalización secundaria (con o sin evolución a tonicoclónica bilateral, en terminología actual). En 2017, la indicación como tratamiento adyuvante de los pacientes con crisis de inicio parcial con o sin generalización secundaria se amplió a su utilización en monoterapia en adultos y en combinación en adolescentes y niños mayores de 6 años. Un grupo de expertos realizó esta revisión orientada a la práctica clínica del uso de ESL en población pediátrica, incluyendo aquellos puntos diferenciales respecto a otros FAE. Se han incluido aspectos como la eficacia, dosificación, respuesta clínica en función de la edad, tolerabilidad y su manejo, perfil neurocognitivo y conductual, necesidad de control de algún parámetro analítico, papel de la monitorización de los niveles plasmáticos, posible valor añadido de la administración única, situaciones clínicas en las que sería recomendable la adición de ESL, utilización con otros bloqueantes de los canales del sodio, realización del cambio desde carbamazepina/oxcarbazepina, potenciales interacciones con otros FAE, potenciales interacciones con otros fármacos distintos de los FAE, y algunas consideraciones prácticas que requieren una investigación adicional

Eslicarbazepine acetate (ESL) is a third-generation antiepileptic drug (AED) of the carboxamide family and structurally related to carbamazepine and oxcarbazepine, although it has pharmacological differences that may have relevant implications of clinical utility. Since 2009 in Europe, ESL has been indicated for use in adults as adjuvant therapy in patients with partial-onset seizures (currently called focal-onset), with or without secondary generalization (with or without evolution to bilateral tonic-clonic, in current terminology). In 2017, the indication for adjunctive therapy of patients with partial-onset seizures with or without secondary generalization was extended to its use as monotherapy in adults and as adjuvant therapy in adolescents and children older than 6 years. A group of experts carried out this review aimed at the aspects of most interest in the clinical practice of the use of ESL in the pediatric population, including differential aspects from other AEDs. Aspects such as efficacy, dosage, clinical response depending on age, tolerability and its management, neurocognitive and behavioral profile, need for monitoring of any analytical parameter, role of plasma level monitoring, possible added value of the once-daily administration, clinical situations in which the addition of ESL would be recommended, use with other sodium channel blockers, how to switch from carbamazepine/oxcarbazepine, potential interactions with other AEDs, potential interactions with drugs other than AEDs, and some practical issues that require additional research

Coste-efectividad de una solución bucal de midazolam en el tratamiento de las crisis convulsivas prolongadas en el entorno ambulatorio en España / Cost-effectiveness of buccal midazolam in the treatment of prolonged convulsive seizures in the outpatient setting in Spain

Introducción. El tratamiento de las crisis epilépticas prolongadas requiere disponer de una medicación de rescate cómoda, segura y efectiva. Actualmente, el tratamiento estándar en la comunidad es el diacepam rectal. La introducción de una solución bucal de midazolam abre una perspectiva nueva en el tratamiento. Objetivo. Evaluar el coste-efectividad del midazolam bucal respecto al diacepam rectal para los niños con un diagnóstico de epilepsia que presentan crisis convulsivas prolongadas en la comunidad en España. Materiales y métodos. Modelo coste-efectividad desde la perspectiva del Sistema Nacional de Salud (SNS) español, con resultados presentados en términos de costes y años de vida ajustados por calidad. Los datos se obtuvieron de varias fuentes, incluidas las estimaciones de efectividad clínica de un ensayo clínico, de un panel Delphi en España y de una encuesta nacional a padres de niños con epilepsia para determinar las prácticas actuales. Resultados. El tratamiento con midazolam bucal produce un ahorro de costes en comparación con el diacepam rectal. El ahorro para el SNS español es de 5.484 euros por paciente al año. El tratamiento con midazolam bucal ofrece una mejora en la calidad de vida relacionada con la salud. Esto, unido al ahorro de costes, hace que el midazolam bucal sea dominante frente al diacepam rectal en todos los escenarios examinados. Conclusión. Los resultados del modelo muestran que el midazolam bucal es más coste-efectivo que el diacepam rectal debido a una reducción en la necesidad de llamadas a la ambulancia y estancias en el hospital, así como a una mejora en la calidad de vida relacionada con la salud (AU)

Introduction. To be able to treat prolonged epileptic crises practical, safe and effective rescue medication is needed. Today, the standard treatment in community healthcare is rectal diazepam. The introduction of a buccal solution of midazolam opens up a new perspective in their treatment. Aims. To evaluate the cost-effectiveness of buccal midazolam with respect to rectal diazepam for children diagnosed with epilepsy who present prolonged convulsive seizures in the community setting in Spain. Materials and methods. The study produces a model of its cost-effectiveness from the perspective of the Spanish National Health System (SNS), with the outcomes presented in terms of cost-quality adjusted life years. Data were collected from different sources, including estimations regarding the clinical effectiveness from a clinical trial, from a Delphi panel in Spain and from a national survey carried out on parents of children with epilepsy in order to determine the current practices. Results. Treatment with buccal midazolam produces a saving in costs in comparison to rectal diazepam. The amount saved by the Spanish SNS comes to 5,484 euros per patient per year. Treatment with buccal midazolam offers an improved health-related quality of life. This, together with the savings in costs, means that there is a dominance of buccal midazolam over rectal diazepam in all the settings that have been examined. Conclusions. The results obtained with the model show that buccal midazolam is more cost-effective than rectal diazepam due to a reduction in the need to call out ambulances and for stays in hospital, as well as an improved health-related quality of life (AU)

[Cost-effectiveness of buccal midazolam in the treatment of prolonged convulsive seizures in the outpatient setting in Spain]. / Coste-efectividad de una solucion bucal de midazolam en el tratamiento de las crisis convulsivas prolongadas en el entorno ambulatorio en España.

INTRODUCTION: To be able to treat prolonged epileptic crises practical, safe and effective rescue medication is needed. Today, the standard treatment in community healthcare is rectal diazepam. The introduction of a buccal solution of midazolam opens up a new perspective in their treatment. AIMS: To evaluate the cost-effectiveness of buccal midazolam with respect to rectal diazepam for children diagnosed with epilepsy who present prolonged convulsive seizures in the community setting in Spain. MATERIALS AND METHODS: The study produces a model of its cost-effectiveness from the perspective of the Spanish National Health System (SNS), with the outcomes presented in terms of cost-quality adjusted life years. Data were collected from different sources, including estimations regarding the clinical effectiveness from a clinical trial, from a Delphi panel in Spain and from a national survey carried out on parents of children with epilepsy in order to determine the current practices. RESULTS: Treatment with buccal midazolam produces a saving in costs in comparison to rectal diazepam. The amount saved by the Spanish SNS comes to 5,484 euros per patient per year. Treatment with buccal midazolam offers an improved health-related quality of life. This, together with the savings in costs, means that there is a dominance of buccal midazolam over rectal diazepam in all the settings that have been examined. CONCLUSIONS: The results obtained with the model show that buccal midazolam is more cost-effective than rectal diazepam due to a reduction in the need to call out ambulances and for stays in hospital, as well as an improved health-related quality of life.

TITLE: Coste-efectividad de una solucion bucal de midazolam en el tratamiento de las crisis convulsivas prolongadas en el entorno ambulatorio en España.Introduccion. El tratamiento de las crisis epilepticas prolongadas requiere disponer de una medicacion de rescate comoda, segura y efectiva. Actualmente, el tratamiento estandar en la comunidad es el diacepam rectal. La introduccion de una solucion bucal de midazolam abre una perspectiva nueva en el tratamiento. Objetivo. Evaluar el coste-efectividad del midazolam bucal respecto al diacepam rectal para los niños con un diagnostico de epilepsia que presentan crisis convulsivas prolongadas en la comunidad en España. Materiales y metodos. Modelo coste-efectividad desde la perspectiva del Sistema Nacional de Salud (SNS) español, con resultados presentados en terminos de costes y años de vida ajustados por calidad. Los datos se obtuvieron de varias fuentes, incluidas las estimaciones de efectividad clinica de un ensayo clinico, de un panel Delphi en España y de una encuesta nacional a padres de niños con epilepsia para determinar las practicas actuales. Resultados. El tratamiento con midazolam bucal produce un ahorro de costes en comparacion con el diacepam rectal. El ahorro para el SNS español es de 5.484 euros por paciente al año. El tratamiento con midazolam bucal ofrece una mejora en la calidad de vida relacionada con la salud. Esto, unido al ahorro de costes, hace que el midazolam bucal sea dominante frente al diacepam rectal en todos los escenarios examinados. Conclusion. Los resultados del modelo muestran que el midazolam bucal es mas coste-efectivo que el diacepam rectal debido a una reduccion en la necesidad de llamadas a la ambulancia y estancias en el hospital, asi como a una mejora en la calidad de vida relacionada con la salud.

Efficacy and tolerability of lacosamide in the concomitant treatment of 130 patients under 16 years of age with refractory epilepsy: a prospective, open-label, observational, multicenter study in Spain.

BACKGROUND: The safety and effectiveness of lacosamide, an antiepileptic drug (AED) that selectively enhances the slow inactivation of voltage-gated sodium channels without affecting rapid inactivation, has been demonstrated in randomized, double-blind, placebo-controlled trials in adults with focal epileptic seizures. Although lacosamide is approved for use in patients over 16 years of age, limited clinical experience exists for younger patients. OBJECTIVE: To assess the efficacy and tolerability of lacosamide in children with refractory epilepsy. DesignMethods: The trial was a prospective, open-label, observational, multicenter study. A total of 130 patients aged less than 16 years (range 6 months to 16 years) with refractory epilepsy who had initiated treatment with lacosamide were enrolled at 18 neuropediatric units in hospitals across Spain. Patients with a variety of etiologies were enrolled, including those with partial epilepsies and symptomatic, generalized epilepsy syndromes. Lacosamide (VIMPAT®; UCB Pharma SA, Brussels, Belgium) was primarily administered once every 12 hours as an oral solution or as an oral tablet, with an initial dose of 1-2 mg/kg/day in the majority of cases. The majority of patients were also receiving stable concomitant therapy with ≥1 other AED. Treatment response to lacosamide was determined by assessing the change in seizure frequency after 3 months of lacosamide therapy. Responders were defined as patients who achieved a seizure frequency reduction of >50%. Tolerability was assessed by the reporting of adverse effects, laboratory testing, and electroencephalography recordings. RESULTS: Lacosamide was dosed at a mean of 6.80 ± 2.39 mg/kg/day. After 3 months of lacosamide therapy, 62.3% of patients achieved a >50% reduction in seizure frequency, with complete seizure suppression being reported in 13.8% of patients. Adverse effects occurred in 39 patients (30%), but no dose-response relationship was observed in terms of these events. In ten patients, instability, difficulty walking, an inability to relate to subjective elements, and blurred vision or dizziness were reported. A total of 13 patients discontinued treatment - in five of these patients, symptom intensity remained unchanged despite dose reduction, which led to treatment discontinuation. The symptoms were markedly different in each patient, preventing determination of a causal factor(s). CONCLUSIONS: The results of this study provide preliminary evidence for the efficacy of lacosamide in children with refractory epilepsy. Further evaluation in a randomized, controlled trial is needed to validate the efficacy in this population and to fully investigate the adverse effects described here. We recommend an initial dose of 1-2 mg/kg/day, uptitrated to 6-9 mg/kg/day over 4-6 weeks.