title: [Community-acquired bacteremia in adult patients attending the emergency service of a teaching hospital].
abstract: Bacteremia is an important cause of morbimortality. This study describes the episodes of community-acquired bacteremia in adult patients registered at our hospital. Between January 2005, and December 2009, 271 episodes were studied. The diagnostic yield of blood cultures was 13.5 %. A total of 52 % of patients were male and 48 % female. The mean age was 60. The most frequent comorbidities were: diabetes (21 %), neoplasia (18 %), cardiopathy (11 %), and HIV infection (8 %). The focus was- respiratory (21 %), urinary (15 %), cutaneous (9 %), and others (13 %). Gram-positive bacteria prevailed (51.4%). The most frequent microorganisms were Escherichia coli (25 %), Streptococcus pneumoniae (22.9 %), and Staphylococcus aureus (12.3 %). Bacteremia was polymicrobial in 7 % of the cases. Thirty three percent of E. coli isolates were resistant to ciprofloxacin and 6 % to ceftazidime. Fourteen percent of S. aureus strains were resistant to oxacillin whereas only 7 % of S. pneumoniae expressed high resistance to penicillin with MICs = 2 ug/ml, according to meningitis breakpoints.
authors.affiliation: Departamento Bacteriología, Hospital Nacional de Clínicas, Santa Rosa, Argentina, 5000.
authors.forename: Muriel J
authors.initials: MJ
authors.lastname: Artico
authors.forename: Marta
authors.initials: M
authors.lastname: Rocchi
authors.forename: Ana
authors.initials: A
authors.lastname: Gasparotto
authors.forename: Valeria
authors.initials: V
authors.lastname: Ocaña Carrizo
authors.forename: Mercedes
authors.initials: M
authors.lastname: Navarro
authors.forename: Valeria
authors.initials: V
authors.lastname: Mollo
authors.forename: Natalia
authors.initials: N
authors.lastname: Avilés
authors.forename: Vanessa
authors.initials: V
authors.lastname: Romero
authors.forename: Sonia
authors.initials: S
authors.lastname: Carrillo
authors.forename: Aída
authors.initials: A
authors.lastname: Monterisi
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001118:Argentina / Q000453:epidemiology; D016470:Bacteremia / Q000453:epidemiology* / Q000382:microbiology; D001419:Bacteria / Q000187:drug effects / Q000302:isolation & purification; D017714:Community-Acquired Infections / Q000453:epidemiology* / Q000382:microbiology; D015897:Comorbidity; D003953:Diagnosis-Related Groups; D024901:Drug Resistance, Multiple, Bacterial; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data*; D005260:Female; D006783:Hospitals, State / Q000706:statistics & numerical data; D006786:Hospitals, Urban / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D055815:Young Adult