Antimicrobial stewardship in critical care

Timothy John Nolan1, Ignacio Martin-Loeches1,2

  • 1Department of Anaesthesia and Intensive Care Medicine, St James's Hospital, Dublin, Ireland.

Future Microbiology
|December 9, 2025
PubMed

Insights

Antimicrobial resistance (AMR) is a major global health threat. Antimicrobial stewardship (AMS) programs optimize antibiotic use in critical care to combat AMR and improve patient outcomes.

Area of Science:

  • Critical care medicine
  • Infectious diseases
  • Public health

Background:

  • Antimicrobial resistance (AMR) poses a significant global health threat, primarily due to inappropriate antibiotic usage.
  • Effective antimicrobial stewardship (AMS) is crucial for mitigating AMR, especially in critical care settings.

Purpose of the Study:

  • To review current principles and practices of AMS in critical care.
  • To explore strategies for combating AMR and optimizing patient outcomes through responsible antimicrobial use.

Main Methods:

  • Review of global AMR burden, resistance mechanisms, and AMS implementation.
  • Analysis of multidisciplinary, diagnostic, and pharmacokinetic approaches to AMS.
  • Examination of rapid diagnostics, biomarkers (e.g., procalcitonin), and EHR integration.

Main Results:

  • AMS strategies enhance antimicrobial efficacy and minimize resistance development.
  • Targeted therapy and improved outcomes are facilitated by diagnostics and EHRs.
  • Special populations (transplant, sepsis) require tailored AMS approaches for optimization and resistance prevention.

Conclusions:

  • Responsible antimicrobial use across all settings is essential.
  • Continuous education, surveillance, and adaptive AMS policies are necessary.
  • Global cooperation and infrastructure investment are vital for addressing implementation challenges, particularly in low-resource settings.

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