Aspectos relevantes de la enfermedad por hígado graso no alcohólico
DOI:
https://doi.org/10.52784/27112330.137Palabras clave:
enfermedad del hígado graso no alcohólico, hígado graso, cirrosis hepática, carcinoma hepatocelular.Resumen
La enfermedad por hígado graso no alcohólico (EHGNA) es una condición que incluye desde la esteatosis hepática simple y la esteatohepatitis, hasta la cirrosis hepática y eventualmente el carcinoma hepatocelular. La diabetes tipo 2 y la obesidad son los principales factores asociados a la EHGNA. Su prevalencia en la población general se ha descrito entre el 20% y el 30%. Estos pacientes tienen un riesgo aumentado de mortalidad y presentan mayor incidencia que la población general de complicaciones hepáticas y cardiovasculares. La asociación de diferentes factores promueve la acumulación de ácidos grasos en el parénquima hepático, generando un estado de estrés, con formación de radicales de oxígeno y liberación de citoquinas inflamatorias que determinan la progresión de la enfermedad. Aunque existen diferentes pruebas no invasivas para el diagnóstico y estadificación de esta entidad, la biopsia hepática es la única prueba que permite identificar de manera fiable la presencia de inflamación, además del grado de fibrosis. El tratamiento actual de la EHGNA se basa en los cambios de estilo de vida del paciente, que han demostrado ser efectivos, incluso para revertir la fibrosis. Desafortunadamente, la adherencia a las medidas generales es muy pobre, de ahí la necesidad de contar con estrategias farmacológicas. Hasta el momento, no contamos con medicamentos aprobados por las agencias regulatorias para esta entidad, y los únicos fármacos recomendados por las sociedades internacionales son la pioglitazona y la vitamina E, que no están exentas de efectos adversos. Actualmente se encuentran bajo investigación diferentes medicamentos que buscan reducir la actividad inflamatoria sin aumento de la fibrosis, o mejoría de la fibrosis sin deterioro de la esteatohepatitis.
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