Methicillin-resistant Staphylococcus aureus in HIV patients: Risk factors associated with colonization and/or infection and methods for characterization of isolates - a systematic review
Clinics
;
69(11): 770-776, 11/2014. tab, graf
Artículo
en Inglés
| LILACS
| ID: lil-731101
ABSTRACT
Staphylococcus aureus is an important cause of infections and HIV-infected individuals are frequently susceptible to this pathogen. The aim of this study was to perform a systematic review to identify both the risk factors associated with colonization/infection by methicillin-resistant S. aureus in HIV patients and the methods used for characterization of isolates. An electronic search of articles published between January 2001 and December 2013 was first conducted. Among 116 studies categorized as being at a quality level of A, B or C, only 9 studies were considered to have high methodological quality (level A). The majority of these studies were retrospective (4/9 studies). The risk factors associated with colonization/infection by S. aureus were use of antimicrobials (4/9 studies), previous hospitalization (4/9 studies) and low CD4+ T lymphocyte counts (<200 cells/μl) (3/9 studies). Culture in mannitol salt agar (3/9 studies) and the latex agglutination test (5/9 studies) were the main methods used for bacterial phenotypic identification. Genotypic profiles were accessed by pulsed-field gel electrophoresis (6/9 studies) and USA300 was the most prevalent lineage (5/9 studies). Most isolates were resistant to erythromycin (3/9 studies) and susceptible to vancomycin (4/9 studies). Ultimately, use of antimicrobials and previous hospitalization were the main risk factors for colonization/infection by methicillin-resistant S. aureus in HIV-infected individuals. However, the numbers of evaluated patients, the exclusion and inclusion criteria and the characterization of the S. aureus isolates were not uniform, which made it difficult to establish the characteristics associated with HIV patients who are colonized/infected by S. aureus.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Infecciones Estafilocócicas
/
Infecciones por VIH
/
Staphylococcus aureus Resistente a Meticilina
Tipo de estudio:
Estudio de etiología
/
Estudio pronóstico
/
Factores de riesgo
/
Revisiones Sistemáticas Evaluadas
Límite:
Humanos
Idioma:
Inglés
Revista:
Clinics
Asunto de la revista:
Medicina
Año:
2014
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
CAPES Foundation/BR
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