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¿Este paciente está teniendo un derrame cerebral?

Larry B Goldstein1, David L Simel

  • 1Department of Medicine, Duke Center for Cerebrovascular Disease, Durham, NC 27710, USA. golds004@mc.duke.edu

JAMA
|May 19, 2005
PubMed
Resumen
Este resumen es generado por máquina.

La evaluación precisa del accidente cerebrovascular se basa en los hallazgos del examen neurológico. Centrarse en la paresis facial, la deriva del brazo y el habla puede mejorar la precisión del diagnóstico para el accidente cerebrovascular y el ataque isquémico transitorio.

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Área de la Ciencia:

  • Neurología Neurología.
  • Precisión en el diagnóstico.
  • Examen clínico El examen clínico.

Sus antecedentes:

  • La evaluación precisa de la sospecha de accidente cerebrovascular o ataque isquémico transitorio (AIT) es crucial para el tratamiento oportuno y la prevención secundaria.
  • Una revisión sistemática anterior de 1994 destacó la importancia de la evaluación clínica.

Objetivo del estudio:

  • Revisar y actualizar sistemáticamente la evidencia sobre la precisión y confiabilidad de los síntomas clínicos y los hallazgos del examen neurológico para el diagnóstico de accidente cerebrovascular y AIT.
  • Proporcionar datos actualizados de precisión diagnóstica para los médicos que manejan pacientes con sospechas de eventos cerebrovasculares.

Principales métodos:

  • Se realizó una búsqueda exhaustiva de la literatura para los artículos publicados entre 1994 y 2005.
  • Los estudios seleccionados proporcionaron datos primarios sobre la precisión (sensibilidad, especificidad, ratios de probabilidad) y / o confiabilidad (estadísticas kappa) de los hallazgos clínicos para el diagnóstico de accidente cerebrovascular.
  • El diagnóstico final en los estudios incluidos fue confirmado por neuroimagen y pruebas de laboratorio.

Principales resultados:

  • La presencia de paresis facial aguda, deriva del brazo o un habla anormal aumenta significativamente la probabilidad de accidente cerebrovascular (LR + = 5,5).
  • La ausencia de estos tres hallazgos disminuye la probabilidad de accidente cerebrovascular (LR- = 0,39).
  • Los síntomas específicos como cambios repentinos en el habla, pérdida visual y debilidad mostraron un alto acuerdo diagnóstico (kappa = 0.60); escalas estandarizadas como la Escala de Accidentes Cerebrovasculares de los NIH pueden mejorar la confiabilidad.

Conclusiones:

  • La historia clínica y el examen neurológico siguen siendo fundamentales para evaluar a los pacientes con sospecha de accidente cerebrovascular.
  • Una evaluación enfocada de paresis facial, deriva del brazo y anomalías del habla puede mejorar la precisión y confiabilidad del diagnóstico en la evaluación del accidente cerebrovascular.