Correlation between antibiotic consumption and resistance of Pseudomonas aeruginosa in a teaching hospital implementing an antimicrobial stewardship program: A longitudinal observational study

Hsiao Wen Huang, Hsin Yi Liu, Han Chuan Chuang, Bi Li Chen, Er Ying Wang, Li Hsin Tsao, Ming Ying Ai, Yuarn Jang Lee

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Background/purpose: The rapid emergence of Pseudomonas aeruginosa resistance made selecting antibiotics more challenge. Antimicrobial stewardship programs (ASPs) are urging to implant to control the P. aeruginosa resistance. The purpose of this study is to evaluate the relationship between antimicrobial consumption and P. aeruginosa resistance, the impact of ASPs implemented during the 14-year study period. Methods: A total 14,852 P. aeruginosa isolates were included in our study. The resistant rate and antimicrobial consumption were investigated every six months. Linear regression analysis was conducted to examine the trends in antibiotics consumption and antimicrobial resistance over time. The relationship between P. aeruginosa resistance and antimicrobial consumption were using Pearson correlation coefficient to analysis. The trend of resistance before and after ASPs implanted is evaluated by segment regression analysis. Results: P. aeruginosa resistance to ceftazidime, gentamicin, amikacin, ciprofloxacin and levofloxacin significantly decreased during the study period; piperacillin/tazobactam (PTZ), cefepime, imipenem/cilastatin and meropenem remained stable. The P. aeruginosa resistance to ciprofloxacin and levofloxacin increasing initial then decreased after strictly controlled the use of levofloxacin since 2007. As the first choice antibiotic to treat P. aeruginosa, the consumption and resistance to PTZ increase yearly and resistance became stable since extended-infusion therapy policy implant in 2009. Conclusion: Our ASP intervention strategy, which included extended infusion of PTZ and restrict use of levofloxacin, may be used to control antimicrobial resistance of P. aeruginosa in medical practice.

Original languageEnglish
Pages (from-to)337-343
Number of pages7
JournalJournal of Microbiology, Immunology and Infection
Volume56
Issue number2
DOIs
Publication statusAccepted/In press - 2022

Keywords

  • Antibiotics consumption
  • Antimicrobial stewardship programs (ASPs)
  • Extended-infusion therapy
  • Pseudomonas aeruginosa (P. aeruginosa)
  • Resistance

ASJC Scopus subject areas

  • Immunology and Allergy
  • General Immunology and Microbiology
  • Microbiology (medical)
  • Infectious Diseases

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