Resumen
INTRODUCCIÓN:Los nuevos anticoagulantes orales son el más reciente avance en anticoagulación oral. Existen suficientes estudios publicados, pero muy poca síntesis de la información.
MÉTODOS:Se realizó una búsqueda sistemática de los estudios en Medline, Cochrane y Embase con los términos predefinidos. Se aplicaron los criterios de inclusión y exclusión definidos, se definieron las variables utilizadas en este estudio según el beneficio (reducción de la mortalidad y reducción del ACV) y el riesgo en la anticoagulación (sangrado intracraneal, sangrado gastrointestinal, sangrado mayor y otros sangrados). Se seleccionaron los artículos y se extrajo la información en una hoja de cálculo para análisis.
RESULTADOS:Se incluyeron 24 meta-análisis y 62 subanálisis; 77 % de los meta-análisis mostraron reducción de ACV, 65 % mortalidad, 71 % reportó disminución de hemorragia intracraneal y 45 % de sangrado mayor, pero hubo aumento de sangrado gastrointestinal en el 5 4% de los estudios. En relación a los resultados de los subanálisis, 4 estudios mostraron algún dato estadísticamente significativo para apixabán, 5 para dabigatrán, 3 para edoxabán y 5 estudios para rivaroxabán. Existen diferencias en algunas variables como sexo, riesgo de ACV, resultados a 30 días, función renal; diferentes dosis (dabigatrán y edoxabán), según la edad, síntomas gastrointestinales, relación con el INR; niveles séricos del medicamento, uso de amiodarona, uso previo de warfarina; enfermedad arterial periférica, transición a warfarina; factores de riesgo de HGI y sangrado mayor para cada anticoagulante en particular.
CONCLUSIONES:Los nuevos anticoagulantes orales muestran mejor perfil de seguridad y de eficacia frente a warfarina.
Citas
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