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  • Title: [Meningitis and myelitis by hypervirulent Klebsiella pneumoniae].
    Author: Durán MV, Landaburu MF, Scarabino M, López Furst MJ.
    Journal: Medicina (B Aires); 2024; 84(5):975-978. PubMed ID: 39399938.
    Abstract:
    Invasive liver abscess syndrome caused by hypervirulent Klebsiella. pneumoniae is a rare disease. This type of K. pneumoniae is aggressive and invasive, despite its sensitivity profile. We report the case of a 62-year-old man with diabetes mellitus, who was admitted to our hospital with meningeal syndrome. Within 24 hours of admission, Gram negative bacilli were isolated blood and cerebrospinal fluid cultures, which were later identified as K. pneumoniae. Liver abscess was detected by computed tomography. Despite early antibiotic treatment, the patient developed back pain that prevented him from moving and right hemiparesis. Increased signal from the central region of the spinal medulla compatible with myelitis was identified by magnetic resonance, for which he received methylprednisolone 1 g/day for 5 days. The patient evolved favorably. Infections caused by hypermucoviscous K. pneumoniae are aggressive and invasive, and more common in men with a history of diabetes mellitus, as in this case. These infections require early antibiotic treatment and the search of metastatic infections. El síndrome de absceso hepático invasivo causado por cepas hipermucoviscosas de Klebsiella pneumoniae es una enfermedad poco frecuente. Esta serovariedad de Klebsiella se caracteriza por ser agresiva e invasiva pese a su perfil de sensibilidad. Se presenta el caso de un varón de 62 años con antecedentes de diabetes mellitus, que ingresó a nuestro centro con síndrome meníngeo. A las 24 horas del ingreso se aislaron en hemocultivos y en líquido cefalorraquídeo (LCR) bacilos Gram negativos que luego fueron tipificados como Klebsiella pneumoniae. Se identificó la presencia de un absceso hepático mediante tomografía computarizada. Pese al tratamiento antibiótico instaurado de manera temprana, el paciente evolucionó con dolor dorsal que le impedía movilizarse y hemiparesia derecha. En la resonancia magnética nuclear de columna se identificó aumento de la señal de la región central de la médula espinal compatible con mielitis por lo cual recibió tratamiento con metilprednisolona 1g/día por 5 días consecutivos. El paciente evolucionó de manera favorable. Las infecciones por K. pneumoniae hipermucoviscosas son agresivas e invasoras y más frecuentes en varones con antecedentes de diabetes mellitus, como en este caso. Su control requiere de un tratamiento antibiótico temprano y búsqueda de focos a distancia.
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