Solid organ transplant antibiograms: an opportunity for antimicrobial stewardship

Diagn Microbiol Infect Dis. 2016 Dec;86(4):460-463. doi: 10.1016/j.diagmicrobio.2016.08.018. Epub 2016 Aug 26.

Abstract

Objectives: We aimed to compare the antimicrobial susceptibility percentages in blood and urine bacterial isolates recovered from solid organ transplant (SOT) recipients with those reported in the hospital-wide antibiogram.

Methods: Retrospective review of the antimicrobial susceptibilities of bacterial isolates recovered from SOT recipients at a 1550-bed hospital over a 2-year period. Antibiograms were categorized by anatomic site (blood and urine). Percentage of bacterial susceptibilities to specific antibiotics were compared with the hospital-wide antibiogram.

Results: A total of 1889 unique cultures were identified. Blood and urine isolates of Escherichia coli, Klebsiella pneumonia and Pseudomonas aeruginosa had significantly lower susceptibility to first and second line antibiotics compared to the hospital-wide antibiogram.

Conclusion: Significant differences in susceptibilities between isolates from blood and urine cultures from SOT recipients and the hospital-wide antibiogram were found. A population-based strategy for the development of antibiograms specific for this group of high-risk patients could better guide appropriate empiric antimicrobial selection.

Keywords: Antibiogram; Antimicrobial susceptibility testing; Transplantation.

Publication types

  • Comparative Study

MeSH terms

  • Anti-Bacterial Agents / pharmacology*
  • Bacteremia / microbiology*
  • Escherichia coli / drug effects*
  • Escherichia coli / isolation & purification
  • Hospitals
  • Humans
  • Klebsiella pneumoniae / drug effects*
  • Klebsiella pneumoniae / isolation & purification
  • Microbial Sensitivity Tests
  • Pseudomonas aeruginosa / drug effects*
  • Pseudomonas aeruginosa / isolation & purification
  • Retrospective Studies
  • Transplant Recipients
  • Transplants*
  • Urinary Tract Infections / microbiology*

Substances

  • Anti-Bacterial Agents