Infecciones por bacilos Gram negativos no fermentadoresPseudomonas aeruginosa, Acinetobacter spp. y Stenotrophomonas maltophilia

  1. Pestaña, M. Íñigo
  2. del Pozo, J.L.
Aldizkaria:
Medicine: Programa de Formación Médica Continuada Acreditado

ISSN: 0304-5412

Argitalpen urtea: 2018

Zenbakien izenburua: Enfermedades infecciosas (II): Infecciones por bacilos Gram negativos

Saila: 12

Zenbakia: 50

Orrialdeak: 2931-2940

Mota: Artikulua

DOI: 10.1016/J.MED.2018.02.010 DIALNET GOOGLE SCHOLAR

Beste argitalpen batzuk: Medicine: Programa de Formación Médica Continuada Acreditado

Laburpena

Resumen Introducción Los bacilos Gram negativos no fermentadores constituyen un complejo conjunto de microorganismos aerobios estrictos, de distribución universal, con gran resistencia a factores ambientales severos, lo que les permite propagarse rápidamente y desarrollar resistencia a todos los antimicrobianos convencionales. Factores de riesgo Dentro de estos, Pseudomonas aeruginosa, Acinetobacter baumanii y Stenotrophomonas maltophilia son los que tienen mayor implicación clínica. Se consideran microorganismos oportunistas, ya que afectan principalmente a pacientes hospitalizados en unidades de críticos, inmunodeprimidos, portadores de material protésico, ampliamente instrumentados y tratados previamente con antibióticos. También se caracterizan por causar brotes en los hospitales. Manifestaciones clínicas Destacan como patógenos del tracto respiratorio inferior, siendo la principal causa de neumonía asociada a ventilación mecánica e infección respiratoria en pacientes con fibrosis quística. Tratamiento El tratamiento de las infecciones causadas por estos microorganismos es complicado, ya que no sólo presentan resistencia natural a diferentes familias de antibióticos sino que además tienen una gran capacidad para adquirir nuevos mecanismos de resistencia durante el tratamiento, por lo que a menudo presentan patrones de multirresistencia.

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