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Hacia la neuroanatomía del autismo: revisión sistemática y metaanálisis de estudios de resonancia magnética estructural
Published online by Cambridge University Press: 12 May 2020
Resumen
Antecedentes.
En pacientes con autismo se han descrito anomalías estructurales cerebrales, pero los estudios realizados son de pequeño tamaño y contradictorios. Quisimos identificar qué regiones cerebrales de los pacientes con autismo pueden considerarse diferentes de las de los controles sanos.
Métodos.
Se realizó una búsqueda sistemática de estudios de resonancia magnética del tamaño de diversas regiones cerebrales. Se recogieron datos y se combinaron por medio de un metaanálisis de efectos aleatorios. Se investigaron los efectos sobre la variabilidad de la edad y del CI por medio de meta-regresión.
Resultados.
El cerebro completo, los hemisferios cerebrales, el cerebelo y el núcleo caudado tenían mayor volumen, pero el área del cuerpo calloso estaba reducida. La edad y el CI modificaron los lóbulos del vérmix cerebeloso VI-VII, y la edad, la amígdala.
Conclusiones.
El autismo podría deberse a anomalías de regiones específicas del cerebro y a una falta de integración global debida al aumento de tamaño del cerebro. Los resultados contradictorios en la literatura se deben en parte a la edad y al CI de las poblaciones del estudio. Algunas regiones muestran alteraciones de las trayectorias de crecimiento.
Keywords
- Type
- Revisión
- Information
- Copyright
- Copyright © European Psychiatric Association 2008
References
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