Antimicrobial use in the surgical patient

Area of Science:

• Surgical Infectious Diseases
• Pharmacology
• Microbiology

Background:

• Antimicrobials are widely used in surgical patients for infection prevention and treatment.
• Effective antimicrobial prophylaxis requires achieving adequate drug concentrations at the surgical site before contamination.
• Therapeutic antimicrobial use targets established localized or systemic infections.

Purpose of the Study:

• To outline the principles of antimicrobial use in surgical patients.
• To emphasize factors influencing the efficacy of prophylactic and therapeutic antimicrobials.
• To identify reasons for antimicrobial therapy failure in surgical settings.

Main Methods:

• Review of antimicrobial principles in surgical prophylaxis and therapy.
• Discussion of factors influencing antimicrobial selection and efficacy.
• Analysis of potential causes for treatment failure.

Main Results:

• Prophylactic antimicrobials must be present at the surgical site at the time of contamination.
• Therapeutic antimicrobial selection depends on flora, resistance, pharmacokinetics, and susceptibility testing.
• Failure can stem from poor drug choice, dosing, or duration.

Conclusions:

• Optimizing antimicrobial selection and administration is essential for preventing and treating surgical infections.
• Understanding drug pharmacokinetics and bacterial resistance is critical for successful antimicrobial therapy.
• Adherence to evidence-based guidelines improves outcomes and reduces antimicrobial resistance.