title: [Study of Staphylococcus aureus infections in a general acute care hospital (2002-2013)].
abstract: A twelve-year retrospective review of Staphylococcus aureus infections in adult and pediatric patients (AP and PP respectively) assisted in the Hospital Interzonal General de Agudos Evita in Lanús was performed to determine the incidence, foci of infection, the source of infection and to analyze the profile of antimicrobial resistance. An amount of 2125 cases of infection in AP and 361 in PP were documented. The incidence in AP decreased significantly in the last three years (χi2; p<0.05); in PP it increased significantly during the last five years (χ2; p<0.0001). In both populations was detected a notable increase in skin infections and associated structures (PEA) in bacteremia to the starting point of a focus on PEA, and in total S. aureus infections of hospital-onset (χ2; p < 0.005). Methicillin-resistance (MRSA) increased from 28 to 78% in PP; in AP it remained around 50%, with significant reduction in accompanying antimicrobial resistance to non-β-lactams in both groups of MRSA. In S. aureus documented from community onset infections (CO-MRSA) in the last three years, the percentage of methicillin-resistance was 57% in PP and 37% in AP; in hospital-onset infections it was 43% and 63% respectively. Although data showed that S. aureus remains a pathogen associated with the hospital-onset, there was an increase of CO-MRSA infections with predominance in PEA in both populations.
authors.affiliation: Laboratorio de Bacteriología, Hospital Interzonal General de Agudos «Evita», Lanús, Buenos Aires, Argentina. Electronic address: anatogneri66@hotmail.com.
authors.forename: Ana M
authors.initials: AM
authors.lastname: Togneri
authors.affiliation: Laboratorio de Bacteriología, Hospital Interzonal General de Agudos «Evita», Lanús, Buenos Aires, Argentina.
authors.forename: Laura B
authors.initials: LB
authors.lastname: Podestá
authors.affiliation: Laboratorio de Bacteriología, Hospital Interzonal General de Agudos «Evita», Lanús, Buenos Aires, Argentina.
authors.forename: Marcela P
authors.initials: MP
authors.lastname: Pérez
authors.affiliation: Laboratorio de Bacteriología, Hospital Interzonal General de Agudos «Evita», Lanús, Buenos Aires, Argentina.
authors.forename: Gabriela M
authors.initials: GM
authors.lastname: Santiso
mesh_terms: D000328:Adult; D000900:Anti-Bacterial Agents; D002648:Child; D017714:Community-Acquired Infections; D003428:Cross Infection; D006801:Humans; D016106:Methicillin Resistance; D055624:Methicillin-Resistant Staphylococcus aureus / Q000302:isolation & purification; D012189:Retrospective Studies; D013203:Staphylococcal Infections / Q000175:diagnosis / Q000188:drug therapy; D013211:Staphylococcus aureus
chemical_list: D000900:Anti-Bacterial Agents
keywords: Community; Comunidad; Infecciones; Infections; Methicillin-resistance; Meticilino-resistencia; Staphylococcus aureus