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El impacto de los cambios isquémicos postoperatorios en los resultados de supervivencia en el glioblastoma tipo IDH
Neslihan Nisa Gecici1, Ahmed Habib1, Walaa Hamza2
1Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh.
Neuro-oncology advances
|February 10, 2026
Resumen
La isquemia postoperatoria, o la reducción del flujo sanguíneo después de la cirugía, en pacientes con glioblastoma (GBM) está relacionada con una supervivencia más corta. Los mayores volúmenes de infarto se correlacionan con peores resultados, lo que sugiere que la isquemia es un factor clave en el pronóstico de GBM.
Área de la Ciencia:
- Neuro-oncología y neuro-oncología.
- La neurocirugía es la neurocirugía.
- Radiología Radiología.
Sus antecedentes:
- El glioblastoma (GBM) es un tumor cerebral agresivo con un mal pronóstico.
- La isquemia postoperatoria, caracterizada por la reducción del flujo sanguíneo después de la resección quirúrgica, es una posible complicación.
- El significado pronóstico del volumen de infarto postoperatorio en GBM sigue siendo incompletamente entendido.
Objetivo del estudio:
- Para investigar la asociación entre el volumen de infarto y los resultados de supervivencia en pacientes con glioblastoma de tipo salvaje de isocitrato deshidrogenasa (IDH).
- Para determinar si la isquemia postoperatoria tiene un impacto en la supervivencia libre de progresión (SFP) y la supervivencia global (SO).
Principales métodos:
- Revisión retrospectiva de 451 pacientes con GBM de tipo salvaje IDH sometidos a resección (2013-2024).
- Imágenes ponderadas por difusión dentro de las 72 horas postoperatorias para evaluar el volumen del infarto (ninguno/sólo el rim, pequeño <5 cm3, grande ≥5 cm3).
- Análisis de supervivencia utilizando regresión de Kaplan-Meier y Cox, ajustado por factores clínicos y patológicos.
Principales resultados:
- Los grandes infartos se asociaron con una mediana de supervivencia global (OS) significativamente más corta (14,0 meses) y tendían a una supervivencia libre de progresión (PFS) más corta (7,0 meses) en comparación con los infartos más pequeños o ausentes.
- En el análisis multivariable, el volumen de infarto se asoció de forma independiente con una reducción de la OS (HR = 1,02 por aumento de cm3) y los grandes infartos predijeron una PFS más corta (HR = 1,4) y OS (HR = 1,7).
Conclusiones:
- El volumen de infarto es un factor pronóstico independiente para la supervivencia en el GBM de tipo salvaje IDH.
- La isquemia postoperatoria es clínicamente relevante y puede representar un objetivo para futuras estrategias terapéuticas.
- Estos hallazgos subrayan la importancia de monitorear y potencialmente mitigar la isquemia postoperatoria en el manejo de GBM.
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