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Bloodstream infections caused by ESBL-producing E. Coli and K. pneumoniae: risk factors for multidrug-resistance
Serefhanoglu, Kivanc; Turan, Hale; Timurkaynak, Funda Ergin; Arslan, Hande.
  • Serefhanoglu, Kivanc; Baskent University. Medical Faculty. Department of Infectious Diseases and Clinical Microbiology. Ankara. TR
  • Turan, Hale; Baskent University. Medical Faculty. Department of Infectious Diseases and Clinical Microbiology. Ankara. TR
  • Timurkaynak, Funda Ergin; Baskent University. Medical Faculty. Department of Infectious Diseases and Clinical Microbiology. Ankara. TR
  • Arslan, Hande; Baskent University. Medical Faculty. Department of Infectious Diseases and Clinical Microbiology. Ankara. TR
Braz. j. infect. dis ; 13(6): 403-407, Dec. 2009. tab
Article in English | LILACS | ID: lil-546007
ABSTRACT
This prospective case-control study was conducted from October 2003 to June 2007 to evaluate risk factors for multidrug resistance among extended-spectrum-b-lactamase-producing Escherichia coli and Klebsiella spp. (ESBL-EK) isolates in blood cultures. All adult patients (>18 years old) whose blood cultures grew ESBL-EK during the study period were included. An ESBL-EK isolate was defined as MDR if it was resistant to at least one member of following two classes of antibiotics aminoglycosides (amikacin, gentamicin, or netilmycin) and fluoroquinolones (ofloxacin, or ciprofloxacin). Case patients were those with a MDR ESBL-EK isolate, and control patients were those with a non-MDR ESBL-EK isolate. A total of 94 bloodstream infections, including 37 (39,4 percent) bloodstream infections with ESBL-producing E. coli and 57 (60,6 percent) with ESBL-producing K. pneumoniae,in 86 patients were enrolled. Thirty episodes (31.9 percent) were due to MDR ESBL-EK. The only independent risk factor for MDR ESBL-EK was duration of hospitalization before bacteraemia (OR 3.88; 95 percent CI 1.55-9.71; p=0.004). The rate of multidrug resistance among ESBL-EK bloodstream isolates was high, and duration of hospitalization before bacteraemia was the only indeepended risk factor for the MDR ESBL-EK bloodstream infections.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Fluoroquinolones / Drug Resistance, Multiple, Bacterial / Escherichia coli / Aminoglycosides / Klebsiella pneumoniae / Anti-Bacterial Agents Type of study: Etiology study / Observational study / Risk factors Limits: Adult / Aged / Female / Humans / Male Language: English Journal: Braz. j. infect. dis Journal subject: Communicable Diseases Year: 2009 Type: Article Affiliation country: Turkey Institution/Affiliation country: Baskent University/TR

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Full text: Available Index: LILACS (Americas) Main subject: Fluoroquinolones / Drug Resistance, Multiple, Bacterial / Escherichia coli / Aminoglycosides / Klebsiella pneumoniae / Anti-Bacterial Agents Type of study: Etiology study / Observational study / Risk factors Limits: Adult / Aged / Female / Humans / Male Language: English Journal: Braz. j. infect. dis Journal subject: Communicable Diseases Year: 2009 Type: Article Affiliation country: Turkey Institution/Affiliation country: Baskent University/TR