Resumen
Objetivo: Analizar patrones de resistencia, desafíos clínicos y posibilidades de tratamiento en infecciones del sistema nervioso central (SNC) causadas por Acinetobacter baumannii multirresistente. Revisión de la literatura: Las infecciones por Acinetobacter baumannii multirresistente presentes en el SNC han sido un desafío clínico importante, especialmente cuando se asocian con neurocirugía o lesión cerebral traumática. El tratamiento actual para las infecciones del SNC causadas por A. baumannii multirresistente consiste en la administración intravenosa combinada de agentes como: carbapenémicos con ampicilina/sulbactam; carbapenémicos asociados con colistina; colistina con rifampicina y sulbactam; y tigeciclina asociada con rifampicina y ampicilina. Sin embargo, debido a la baja permeabilidad de estos agentes a través de la barrera hematoencefálica, se debe considerar el uso de terapia antimicrobiana intratecal y los principales agentes son: colistina, tigeciclina, gentamicina, amikacina y polimixina B. Consideraciones finales: A. baumannii tiene convertirse en uno de los patógenos más desafiantes que se adquieren en ambientes hospitalarios. La dificultad de los antimicrobianos para atravesar la barrera hematoencefálica, combinada con los mecanismos de resistencia de este microorganismo a los antimicrobianos, dificultan el control infeccioso y por tanto favorecen una alta tasa de mortalidad en la meningoencefalitis. Es fundamental detectarlo a tiempo y adoptar procedimientos estrictos de control de infecciones. Se necesitan ensayos clínicos para garantizar mejor la mejor elección antimicrobiana y el mejor tiempo de tratamiento.
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