• Pediatrics · Sep 2017

    Multicenter Study

    Utility of Blood Culture Among Children Hospitalized With Community-Acquired Pneumonia.

    • Mark I Neuman, Matthew Hall, Susan C Lipsett, Adam L Hersh, Derek J Williams, Jeffrey S Gerber, Thomas V Brogan, Anne J Blaschke, Carlos G Grijalva, Kavita Parikh, Lilliam Ambroggio, Samir S Shah, and Pediatric Research in Inpatient Settings Network.
    • Division of Emergency Medicine, Boston Children's Hospital, Boston, Massachusetts; mark.neuman@childrens.harvard.edu.
    • Pediatrics. 2017 Sep 1; 140 (3).

    Background And ObjectivesNational guidelines recommend blood cultures for children hospitalized with presumed bacterial community-acquired pneumonia (CAP) that is moderate or severe. We sought to determine the prevalence of bacteremia and characterize the microbiology and penicillin-susceptibility patterns of positive blood culture results among children hospitalized with CAP.MethodsWe conducted a cross-sectional study of children hospitalized with CAP in 6 children's hospitals from 2007 to 2011. We included children 3 months to 18 years of age with discharge diagnosis codes for CAP using a previously validated algorithm. We excluded children with complex chronic conditions. We reviewed microbiologic data and classified positive blood culture detections as pathogens or contaminants. Antibiotic-susceptibility patterns were assessed for all pathogens.ResultsA total of 7509 children hospitalized with CAP were included over the 5-year study period. Overall, 34% of the children hospitalized with CAP had a blood culture performed; 65 (2.5% of patients with blood cultures; 95% confidence interval [CI]: 2.0%-3.2%) grew a pathogen. Streptococcus pneumoniae accounted for 78% of all detected pathogens. Among detected pathogens, 50 (82%) were susceptible to penicillin. Eleven children demonstrated growth of an organism nonsusceptible to penicillin, representing 0.43% (95% CI: 0.23%-0.77%) of children with blood cultures obtained and 0.15% (95% CI: 0.08%-0.26%) of all children hospitalized with CAP.ConclusionsAmong children without comorbidities hospitalized with CAP in a non-ICU setting, the rate of bacteremia was low, and isolated pathogens were usually susceptible to penicillin. Blood cultures may not be needed for most children hospitalized with CAP.Copyright © 2017 by the American Academy of Pediatrics.

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