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Updated: May 19, 2026

Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses
Published on: August 30, 2018
Antibiotic heterogeneity optimizes antimicrobial prescription and enables resistant pathogen control in the intensive
Greta L Piper1, Lewis J Kaplan
1Section of Trauma, Surgical Critical Care, and Surgical Emergencies, Department of Surgery, Yale University School of Medicine, New Haven, Connecticut 06520, USA.
Background:
Multi-drug-resistant organisms (MDRO) complicate care increasingly on the general ward and in the emergency department, operating room, and intensive care unit (ICU). Whereas barrier precautions are important in limiting transmission of MDRO between patients, few tactics have been defined that reduce the genesis of MDRO.
Method:
Review of pertinent English-language literature.
Results:
Antibiotic heterogeneity practices, as part of an overall antimicrobial drug stewardship program, offer one readily deployable means to reduce selection pressure for MDRO development in the ICU. The data underpinning this approach and data derived from its use indicate that, especially in surgical ICUs, heterogeneity of antibiotic prescribing can preserve or restore microbial ecology, reduce the prevalence of MDRO and the incidence of infections caused thereby, and facilitate the implementation and effectiveness of other antibiotic-sparing tactics, such as de-escalation.
Conclusion:
Heterogeneity of antibiotic prescribing is effective in preventing the dissemination of MDRO pathogens.
Insights
Heterogeneity in antibiotic prescribing, a strategy within antimicrobial stewardship, effectively reduces the development and spread of multi-drug-resistant organisms (MDRO). This approach helps preserve microbial ecology and enhances other antibiotic-sparing methods.
Area of Science:
- Infectious Diseases
- Antimicrobial Stewardship
- Critical Care Medicine
Background:
- Multi-drug-resistant organisms (MDRO) pose increasing challenges in various healthcare settings, including general wards, emergency departments, operating rooms, and ICUs.
- While barrier precautions help limit MDRO transmission, strategies to reduce MDRO development are less defined.
Purpose of the Study:
- To explore the role of antibiotic heterogeneity in reducing the genesis and dissemination of multi-drug-resistant organisms (MDRO).
Main Methods:
- A comprehensive review of English-language literature pertinent to antibiotic prescribing practices and MDRO development was conducted.
Main Results:
- Antibiotic heterogeneity, as part of antimicrobial drug stewardship, can reduce selection pressure for MDRO in ICUs.
- This practice, particularly in surgical ICUs, preserves microbial ecology, decreases MDRO prevalence and associated infections, and supports antibiotic-sparing tactics like de-escalation.
Conclusions:
- Heterogeneity in antibiotic prescribing is an effective strategy for preventing the dissemination of multi-drug-resistant organisms (MDRO) pathogens.
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