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El mini-Oxford cognitive screen (Mini-OCS): Un cribado cognitivo muy breve para usar en el ictus crónico
Sam S Webb1, Luning Sun2, Eugene Yee Hing Tang3
1Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK.
European stroke journal
|January 30, 2026
Resumen
El Mini-Oxford Cognitive Screen (Mini-OCS) es una herramienta de cribado cognitivo nueva y breve para supervivientes de ictus crónico. Muestra buena fiabilidad y validez, mejorando las herramientas de demencia existentes para las deficiencias post-ictus.
Área de la Ciencia:
- Neurología; Ciencia Cognitiva; Psicometría
Sus antecedentes:
- Las herramientas actuales de cribado cognitivo para supervivientes de ictus crónico a menudo son específicas para la demencia y no abordan las deficiencias únicas post-ictus.
- El Oxford Cognitive Screen (OCS) existente es demasiado lento para el cribado rutinario en entornos comunitarios.
Objetivo del estudio:
- Desarrollar y validar psicométricamente el Mini-Oxford Cognitive Screen (Mini-OCS), una herramienta de cribado cognitivo breve (<8 minutos) adaptada para supervivientes de ictus crónico que viven en la comunidad.
- Proporcionar un cribado cognitivo específico para el ictus adecuado para atención primaria y entornos comunitarios.
Principales métodos:
- Análisis de datos existentes del OCS de 464 supervivientes de ictus crónico para desarrollar una forma corta.
- Administración del Mini-OCS a 164 controles sanos y 89 supervivientes de ictus crónico.
- Evaluación de las propiedades psicométricas, incluida la validez del constructo y la fiabilidad de la reevaluación, utilizando el OCS original, MoCA y una batería neuropsicológica ampliada.
Principales resultados:
- El Mini-OCS demostró una mayor sensibilidad en los dominios de memoria y función ejecutiva en comparación con el OCS completo.
- Se establecieron datos normativos para el Mini-OCS.
- El Mini-OCS cumplió todos los puntos de referencia para la fiabilidad de la reevaluación y la validez del constructo.
Conclusiones:
- El Mini-OCS es una herramienta de cribado cognitivo de forma corta y validada con propiedades psicométricas prometedoras para poblaciones de ictus crónico.
- Ofrece una alternativa más apropiada y eficiente a las herramientas de cribado de demencia para evaluar la función cognitiva después del ictus.
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