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Infecciones por Yersinia

2006 
La Yersinia enterocolitica o la Yersinia pseudotuberculosis pueden tener diferentes formas de presentacion entre las que estan la enteritis o enterocolitis, la adenitis mesenterica asociada a ileitis distal, la septicemia, infecciones localizadas o manifestaciones extraintestinales. Es responsable de hasta 7 por ciento de los cuadros de gastroenteritis infecciosas y se asocia a una elevada mortalidad post-infeccion a corto y largo plazo, de 2 a 3 veces mayor. Esta infeccion bacteriana se adquiere mediante la ingesta oral de productos contaminados y/o inadecuadamente preparados. El aislamiento de Yersinia en las deposiciones es el examen mas especifico y siempre debe ser solicitado. Debido a su baja sensibilidad los estudios serologicos pueden ser utiles para el diagnostico, y la reaccion de polimerasa en cadena (PCR) puede constituirse proximamente en el examen de eleccion para el diagnostico de esta infeccion. Los antibioticos utiles para su tratamiento son los aminoglicosidos, cefalosporinas de tercera generacion, cloranfenicol, quinolonas, tetraciclinas y trimetoprim-sulfametoxazol. Yersinia enterocolitica or yersinia pseudotuberculosis may have different presentation forms: among those are enteritis or enterocholitis, mesenteric adenitis associated with distal ileitis, septicemia, localized infections or extra-intestinal manifestations. It is responsible for up to 7 percent of infectious gastroenteritis and is associated with high post-infection mortality in the short and long term, which is 2 to 3 times higher. This bacterial infection is acquired through oral consumption of contaminated and/or inappropriately prepared products. Isolation of Yersinia in stool samples is the more specific exam and it should always be performed. Due to its low sensibility, serological studies may be useful for the diagnosis, and the polymerase chain reaction (PCR) may become the elective exam for the diagnosis of this infection in the future. Antibiotics that are useful for its treatment are aminoglycoside, third-generation cephalosporins, chloramphenicol, quinolones, tetracyclines, and Trimetoprim-sulfametoxasol.
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