When and How to Use MIC in Clinical Practice?

Area of Science:

• Infectious Diseases
• Pharmacology
• Microbiology

Background:

• Antibiotic resistance is a critical global health challenge.
• Effective antibiotic selection and dosing are key to limiting resistance emergence.
• Treatment success depends on bacterial profile, drug pharmacodynamics/pharmacokinetics (PK/PD), infection site, and patient PK.

Purpose of the Study:

• To review situations where combining minimal inhibitory concentration (MIC) and therapeutic drug monitoring (TDM) can optimize antibiotic therapy.
• To highlight the utility of MIC and TDM in managing bacterial infections and preventing resistance.

Main Methods:

• Narrative review of microbiological, pharmacological, and clinical data.
• Discussion of the combined interpretation of MIC and TDM.
• Analysis of PK/PD profiles in various clinical scenarios.

Main Results:

• The integration of MIC and TDM is essential for personalized antibiotic dosing.
• This approach is particularly valuable for infections with resistant bacteria and in specific populations (e.g., ICU, cystic fibrosis, obese, elderly).
• Preservation of broad-spectrum beta-lactams is discussed in the context of resistance detection.

Conclusions:

• Combining MIC and TDM provides a powerful strategy for optimizing antibiotic treatment and combating resistance.
• Clinicians should utilize MIC and TDM as essential tools for effective patient management.
• Personalized antibiotic therapy informed by microbiological and pharmacokinetic data is vital for public health.