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Clopidogrel versus aspirina para la prevención secundaria de la enfermedad arterial coronaria: una revisión sistemática y un metanálisis de los datos de cada paciente

  • 0Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, University of Italian Switzerland, Lugano, Switzerland; Department of Cardiology, Bern University Hospital, University of Bern, Bern, Switzerland.

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Resumen

Este resumen es generado por máquina.

La monoterapia con clopidogrel es más eficaz que la aspirina para prevenir eventos adversos cardiovasculares o cerebrovasculares importantes en pacientes con enfermedad arterial coronaria. Este estudio no encontró diferencias significativas en el riesgo de sangrado entre los dos tratamientos.

Área De La Ciencia

  • Cardiología
  • Farmacología
  • Ensayos clínicos

Sus Antecedentes

  • La monoterapia con aspirina es estándar para la enfermedad arterial coronaria establecida (CAD).
  • La eficacia y la seguridad comparativas del clopidogrel frente a la monoterapia con aspirina requieren una evaluación exhaustiva.
  • Los pacientes a menudo se han sometido a una intervención coronaria percutánea o han tenido síndrome coronario agudo.

Objetivo Del Estudio

  • Evaluar la eficacia y seguridad comparativas del clopidogrel frente a la monoterapia con aspirina en pacientes con EAC establecidos.
  • Para analizar los eventos adversos cardiovasculares o cerebrovasculares mayores (MACCE) y las hemorragias mayores.
  • Informar las estrategias de prevención secundaria en la EAC.

Principales Métodos

  • Metaanálisis de datos de pacientes individuales de ensayos aleatorizados.
  • Búsqueda sistemática de PubMed, Scopus, Web of Science y Embase hasta el 12 de abril de 2025.
  • Modelos de fragilidad log-normal compartidos semiparamétricos utilizados para el análisis, teniendo en cuenta las variaciones a nivel de ensayo.

Principales Resultados

  • Se incluyeron siete ensayos con 28.982 pacientes; la mediana de seguimiento fue de 2,3 años.
  • El clopidogrel redujo significativamente el MACCE en comparación con la aspirina (HR 0,86; p=0,0082).
  • No se observaron diferencias significativas en la mortalidad o sangrado mayor entre los grupos de clopidogrel y de aspirina.

Conclusiones

  • La monoterapia con clopidogrel es superior a la monoterapia con aspirina para la prevención de la EACM en la EAC establecida.
  • El uso de clopidogrel no aumenta el riesgo de hemorragia en comparación con la aspirina.
  • Se apoya el uso preferente de clopidogrel sobre la aspirina para la prevención secundaria de la EAC.

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