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Enfermedad por Mycobacterium simiae y "Mycobacterium sherrisii" en la Argentina / Disease due to Mycobacterium simiae and "Mycobacterium sherrisii" in Argentina
Barrera, Lucía; Palmero, Domingo; Paul, Roxana; López, Beatriz; Grupo de Investigación de M. simiae.
  • Barrera, Lucía; ANLIS Dr Carlos G. Malbrán. INEI.
  • Palmero, Domingo; Hospital Francisco J. Muñiz.
  • Paul, Roxana; ANLIS Dr Carlos G. Malbrán. INEI.
  • López, Beatriz; ANLIS Dr Carlos G. Malbrán. INEI.
Medicina (B.Aires) ; 70(4): 343-346, ago. 2010. tab
Article in Spanish | LILACS | ID: lil-633764
RESUMEN
Se presenta información reunida retrospectivamente sobre casos de micobacteriosis originados por Mycobacterium simiae (n = 4) y "M. sherrisii" (n = 6). Los casos ocurrieron entre pacientes con sida (n = 6), historia de silicosis (n = 2) o tuberculosis previa (n = 1). Un caso se perdió luego de diagnosticado y nueve fueron tratados con esquemas terapéuticos basados en claritromicina, etambutol y quinolonas. La respuesta fue muy pobre cinco pacientes fallecieron (cuatro eran HIV positivos), tres permanecieron crónicos y sólo uno curó. Estas micobacterias originaron 2.1% de los casos de micobacteriosis registrados en un período de ocho años. La distinción de estas micobacterias raras de otras más frecuentes por métodos moleculares rápidos, parece ser clínicamente útil para advertir sobre la dificultad que puede presentar el tratamiento. Sin embargo, la diferenciación genotípica entre M. simiae y "M. sherrisii" parecería no ser clínicamente relevante, dado que no quedaron expuestas características que distingan a los pacientes afectados por los dos microorganismos tan estrechamente relacionados.
ABSTRACT
A revision of mycobacterial disease due to M simiae (n = 4) and "M. sherrisii" (n = 6) identified during an eight-year period is presented. Cases occurred among patients with AIDS (n = 6), previous history of silicosis (n = 2) or tuberculosis (n = 2). One case was lost to follow-up and the remaining nine responded poorly to chemotherapy based on clarithromycin, ethambutol and fluoroquinolones. Five patients died of whom four were HIV-positive, three remained chronic and one was cured. These microorganisms originated 2.1% of mycobacterioses cases detected in an eight-year period. Timely identification of this group of uncommon mycobacteria by molecular methods seems to be clinically relevant in order to warn of difficulties inherent to the treatment. However, the distinction between both closely related microorganisms might not be crucial for case management as no distinctive characteristics were evident among patients affected by M. simiae or "M. sherrisii".
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Mycobacterium / Mycobacterium Infections Type of study: Observational study / Prognostic study / Risk factors Limits: Adult / Aged / Child / Female / Humans / Male Country/Region as subject: South America / Argentina Language: Spanish Journal: Medicina (B.Aires) Journal subject: Medicine Year: 2010 Type: Article Affiliation country: Argentina

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Full text: Available Index: LILACS (Americas) Main subject: Mycobacterium / Mycobacterium Infections Type of study: Observational study / Prognostic study / Risk factors Limits: Adult / Aged / Child / Female / Humans / Male Country/Region as subject: South America / Argentina Language: Spanish Journal: Medicina (B.Aires) Journal subject: Medicine Year: 2010 Type: Article Affiliation country: Argentina