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Descompresión mínimamente invasiva para la malformación de Chiari I: una revisión sistemática y un metanálisis
Patrick Pema1, Daniel Monahan2, Shiv Patel2
1Neurosurgery, Hackensack Meridian Jersey Shore University Medical Center, Neptune, USA.
Cureus
|September 2, 2025
Resumen
La descompresión mínimamente invasiva del foramen magnum (MID) trata eficazmente la malformación de Chiari I (CIM), mostrando una mejora significativa de la siringomielia y tasas de complicaciones favorables en comparación con la cirugía abierta.
Área de la Ciencia:
- Neurocirugía
- Cirugía mínimamente invasiva
- Malformaciones cerebrales
Sus antecedentes:
- La malformación de Chiari I (CIM) implica una hernia de las amígdalas cerebelares en el foramen magnum.
- El tratamiento tradicional es la descompresión del foramen magnum abierto.
- La descompresión mínimamente invasiva del foramen magnum (MID) es un enfoque quirúrgico alternativo.
Objetivo del estudio:
- Para comparar los resultados entre la descompresión tradicional abierta y la mínimamente invasiva del foramen magnum (MID) para la malformación sintomática de Chiari I.
- Para aclarar las diferencias en la eficacia y las tasas de complicaciones.
Principales métodos:
- Búsqueda sistemática en la literatura de PubMed de estudios sobre MID en pacientes sintomáticos con CIM.
- Criterios de inclusión: pacientes sintomáticos, intervención quirúrgica MID, reportes de complicaciones explícitas.
- Metaanálisis de 10 estudios que informaron sobre 200 pacientes, analizando el tiempo operativo, los resultados neurológicos y las complicaciones.
Principales resultados:
- El promedio de mejora de la siringomielia fue del 84% después de la DMI.
- El metanálisis de las tasas de complicaciones mostró una heterogeneidad moderada (I2 = 61%), con tasas totales de 0,16 (común) y 0,12 (efectos aleatorios).
- Las escalas de evaluación neurológica (VAS, KPS, mJOA, CCOS) indicaron una mejora funcional; el desgarro dural fue la complicación más común (8 casos).
Conclusiones:
- La descompresión mínimamente invasiva del foramen magnum (MID) es un tratamiento eficaz para la malformación sintomática de Chiari I (CIM).
- MID demuestra tasas favorables de complicaciones, potencialmente superiores a la cirugía abierta.
- La técnica es tan eficaz como la cirugía abierta, con una mejora significativa de la función del paciente y la resolución de la siringomielia.
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