2005, Número s1
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Inv Salud 2005; 7 (s1)
Esteatohepatitis no alcohólica
Martínez LE, Domínguez RJA, Hernández NZH, Panduro CA
Idioma: Español
Referencias bibliográficas: 67
Paginas: 40-47
Archivo PDF: 223.05 Kb.
RESUMEN
En 1980 Ludwing y col. describieron pacientes sin antecedentes de consumo de alcohol que mostraban resultados en la biopsia hepática no distinguibles de la hepatitis alcohólica, acuñándose entonces el término “esteatohepatitis no alcohólica” (EHNA). Los criterios de diagnóstico propuestos por Powell en 1990 para EHNA describen que la biopsia hepática debe presentar degeneración grasa macrovesicular con presencia de inflamación, sin antecedentes de consumo de alcohol y descartar infecciones por virus de hepatitis B y C. La
prevalencia de EHNA en la población general no ha
sido definida actualmente, pero se ha reportado que
aproximadamente del 1.2 al 9% de los pacientes con biopsia hepática la presentan. Se cree que esta cifra aumentará significativamente en pacientes asintomáticos. La anormalidad frecuentemente observada en estos sujetos es la elevación plasmática de las enzimas hepáticas. La EHNA se presenta principalmente en mujeres y se asocia a
enfermedades metabólicas: resistencia a la insulina, obesidad, DM2 e hiperlipidemias. La patogénesis de EHNA no ha sido clara, pero se han propuesto teorías en las que participa el metabolismo de ácidos grasos libres.
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