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Esclerosis tuberosa: caracterización clínica e intento de correlación fenotipo/genotipo / Tuberous sclerosis: Clinical characteristics and their relationship to genotype/phenotype
Monteiro, T; Garrido, C; Pina, S; Chorao, R; Carrilho, I; Figueiroa, S; Santos, M; Temudo, T.
Affiliation
  • Monteiro, T; Centro Materno-Infantil do Norte. Porto. Portugal
  • Garrido, C; Centro Materno-Infantil do Norte. Porto. Portugal
  • Pina, S; Centro Materno-Infantil do Norte. Porto. Portugal
  • Chorao, R; Centro Materno-Infantil do Norte. Porto. Portugal
  • Carrilho, I; Centro Materno-Infantil do Norte. Porto. Portugal
  • Figueiroa, S; Centro Materno-Infantil do Norte. Porto. Portugal
  • Santos, M; Centro Materno-Infantil do Norte. Porto. Portugal
  • Temudo, T; Centro Materno-Infantil do Norte. Porto. Portugal
An. pediatr. (2003, Ed. impr.) ; 81(5): 289-296, nov. 2014. tab, ilus
Article in Spanish | IBECS | ID: ibc-129375
Responsible library: ES1.1
Localization: BNCS
RESUMEN

INTRODUCCIÓN:

La esclerosis tuberosa (ET) es una enfermedad de afectación multisistémica y gran variabilidad fenotípica. Están identificados 2 genes involved en la génesis de la enfermedad TSC1 y TSC2.

OBJETIVOS:

Caracterizar clínicamente a los pacientes con ET seguidos en Neurología Pediátrica de un hospital de tercer nivel durante los últimos 10 años y correlacionar el genotipo con la gravedad de la clínica neurológica y los estudios de imagen. PACIENTES Y

MÉTODOS:

Estudio retrospectivo descriptivo, mediante consulta de la historia clínica y evaluación de las resonancias magnéticas (RM) de pacientes con ET.

RESULTADOS:

Se estudiaron 35 casos, con una mediana de edad, al diagnóstico, de 10 meses. En el 91,4% se registraron crisis epilépticas, con un predominio de espasmos epilépticos a la presentación. Más del 50% tenía deterioro cognitivo y el 49% trastornos de conducta. Se sometieron a estudio genético 24 ni˜nos con predominio de mutaciones TSC2 (58,3%). De los 11 casos de epilepsia refractaria, 6 tenían mutación del gen TSC2. De los 8 pacientes con déficit cognitivo moderado a grave, se identificaron 5 mutaciones TSC2. Se revisaron 26 RM y en el 76,9% se observó una afectación completa de los lóbulos cerebrales, lo que refleja una gran cantidad de lesiones. De los enfermos con mutaciones TSC2 y RM realizada, todos tenían alta carga de lesión y 5 epilepsia refractaria.

DISCUSIÓN:

En nuestra muestra, nos encontramos con un alto porcentaje de mutaciones en el gen TSC2. Esta mutación está asociada a un peor pronóstico neurológico, con crisis más farmacorresistentes y un atraso cognitivo más severo
ABSTRACT

INTRODUCTION:

Tuberous sclerosis (TS) is an inherited disorder with multisystemic involvement and a high phenotypic variability. There are two genes that cause this condition TSC1 and TSC2.

OBJECTIVES:

Our goal was to clinically characterize patients with TS followed up in the Pediatric Neurology Clinic of a tertiary hospital during the last 10 years, and correlate the genotype with the severity of neurological manifestations and imaging studies. PATIENTS AND

METHODS:

Retrospective analysis of patients with TS, including review of medical records and available MRI imaging.

RESULTS:

We studied 35 cases with a median age at diagnosis of ten months. Seizures were the first manifestation in 91.4% of cases, with a predominance of epileptic spasms. Over 50% had cognitive impairment and 49% behavioral disorders. A genetic study was performed on 24 children, and TSC2 mutations identified in 58.3% of them. Of the 11 cases of refractory epilepsy, six had the TSC2 gene mutation. In the group of eight patients with moderate/severe cognitive deficits, five had TSC2 mutations. We reviewed 26 MRI scans, in which it was observed that 76.9% had diffuse involvement of cerebral lobes, which reflects a greater burden of injury. Of the patients who had an MRI scan performed and had TSC2 mutations, all had a high tuber load, and5 of them had refractory epilepsy.

DISCUSSION:

In our sample we observe a high percentage of mutations in the TSC2 gene. This mutation carries a worse neurological prognosis, with drug-resistant epilepsy and a more severe cognitive impairme
Subject(s)

Full text: Available Collection: National databases / Spain Database: IBECS Main subject: Phenotype / Tuberous Sclerosis / Cognition Disorders / Genotype Type of study: Observational study / Prognostic study / Risk factors Limits: Child / Female / Humans / Male Language: Spanish Journal: An. pediatr. (2003, Ed. impr.) Year: 2014 Document type: Article Institution/Affiliation country: Centro Materno-Infantil do Norte/Portugal

Full text: Available Collection: National databases / Spain Database: IBECS Main subject: Phenotype / Tuberous Sclerosis / Cognition Disorders / Genotype Type of study: Observational study / Prognostic study / Risk factors Limits: Child / Female / Humans / Male Language: Spanish Journal: An. pediatr. (2003, Ed. impr.) Year: 2014 Document type: Article Institution/Affiliation country: Centro Materno-Infantil do Norte/Portugal
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