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  • Title: Characterization of an outbreak due to extended-spectrum beta-lactamase-producing Klebsiella pneumoniae in a pediatric intensive care unit transplant population.
    Author: Rebuck JA, Olsen KM, Fey PD, Langnas AN, Rupp ME.
    Journal: Clin Infect Dis; 2000 Dec; 31(6):1368-72. PubMed ID: 11096004.
    Abstract:
    Limited information exists regarding Klebsiella pneumoniae's production of an extended-spectrum beta-lactamase (KP-ESBL) in pediatric patients, particularly solid-organ transplant recipients. This study characterized the microbiological, epidemiological, and clinical features of a KP-ESBL outbreak in children receiving a liver transplant, an intestinal transplant, or both. All children found to have microbiologically confirmed K. pneumoniae during a 21-month period were reviewed. ESBL production was defined by double-disk diffusion, and 6 distinct pulsed-field gel electrophoresis patterns were identified. Fifty-six percent of the transplant patients we studied developed KP-ESBL, representing 87% of all microbiologically confirmed cases at our institution. As compared with 16 control transplant patients who were negative for KP-ESBL, the 20 transplant patients who acquired KP-ESBL were younger (aged < or = 5 years; 80.0% vs. 43.8%, P = .038) and experienced placement of > or = 3 central venous catheters before recovery of the first K. pneumoniae isolate (73.7% vs. 18.8%, P = .002). This study suggests that children who receive liver or intestinal transplants are at high risk for KP-ESBL acquisition.
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