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[Multidrug resistance and new anti-infective agents]

Katja Schneider1, Stefan Hagel1, Maria J G T Vehreschild2

  • 1Institut für Infektionsmedizin und Krankenhaushygiene, Universitätsklinikum Jena, Friedrich-Schiller-Universität Jena, Am Klinikum 1, 07747, Jena, Deutschland.

Innere Medizin (Heidelberg, Germany)
|August 20, 2026
PubMed

Insights

Multidrug-resistant pathogens pose a significant global health threat. New treatment guidelines offer practice-oriented recommendations for severe infections caused by these resistant bacteria.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Pharmacology

Background:

  • Multidrug-resistant (MDR) pathogens represent a critical global health challenge.
  • Carbapenem resistance in Gram-negative bacteria and resistance to methicillin-resistant Staphylococcus aureus and vancomycin-resistant enterococci in Gram-positive bacteria are of major clinical concern.
  • Mechanisms of resistance include altered penicillin-binding proteins, beta-lactamase activity, porin changes, and efflux pumps.

Purpose of the Study:

  • To provide practice-oriented treatment recommendations for severe infections caused by MDR pathogens.
  • To address the growing threat of antimicrobial resistance globally.
  • To inform clinicians on the latest therapeutic approaches.

Main Methods:

  • Review of current literature and resistance mechanisms.
  • Analysis of clinical significance of various MDR pathogens.
  • Evaluation of new therapeutic strategies, including beta-lactam/beta-lactamase inhibitor combinations.
  • Incorporation of findings into a national guideline.

Main Results:

  • New beta-lactam/beta-lactamase inhibitor combinations demonstrate superior efficacy and tolerability compared to older agents like colistin for MDR Gram-negative infections.
  • Knowledge of resistance mechanisms and antibiotic susceptibility profiles is crucial for targeted therapy.
  • The first German S3 guideline offers evidence-based recommendations.

Conclusions:

  • Effective management of MDR infections requires understanding resistance mechanisms and utilizing updated therapeutic guidelines.
  • Novel antibiotic combinations are improving treatment outcomes for severe MDR bacterial infections.
  • The guideline aims to standardize and optimize the treatment of severe infections caused by MDR bacteria.
Keywords:
Carbapenem resistanceMethicillin-resistant Staphylococcus aureusMultidrug-resistant pathogensResistance mechanismsVancomycin-resistant enterococci

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