Evaluation of Empirical Meropenem Bolus Protocol in Pseudomonas aeruginosa: A Three-Year Analysis in Tertiary

I Wayan Suranadi1, Putu Agus Surya Panji1, Ni Nyoman Sri Budayanti2

  • 1Department of Anesthesiology and Intensive Care, Faculty of Medicine, Universitas Udayana/Sanglah General Hospital, Denpasar, Bali, 80113, Indonesia.

Abstract

Insights

The study found that the empirical meropenem administration protocol increased nonsusceptibility in Pseudomonas aeruginosa. Modifying empirical therapeutic strategies is crucial for combating antimicrobial resistance.

Area of Science:

  • Infectious Diseases
  • Clinical Pharmacy
  • Microbiology

Background:

  • Antimicrobial resistance is a growing global health concern.
  • Pseudomonas aeruginosa is a common cause of hospital-acquired infections, particularly in intensive care units.
  • Meropenem is a critical antibiotic for treating P. aeruginosa infections.

Purpose of the Study:

  • To investigate the empirical use of meropenem.
  • To analyze the susceptibility trends of P. aeruginosa to meropenem.
  • To identify factors associated with acquired nonsusceptibility in P. aeruginosa within an intensive care unit setting.

Main Methods:

  • A retrospective study was conducted in an Indonesian tertiary care hospital's intensive and high care unit.
  • Data from January 2018 to January 2021 included patients with culture-confirmed P. aeruginosa infections.
  • Hospital electronic medical records and microorganism susceptibility reports were analyzed.

Main Results:

  • An increasing trend in meropenem nonsusceptibility and multidrug-resistance rates was observed.
  • Nonsusceptibility to meropenem was acquired in 37% of patients, with most receiving empirical therapy.
  • The evaluated empirical meropenem administration protocol was a significant risk factor for P. aeruginosa nonsusceptibility (PR = 30.65; p <0.001).

Conclusions:

  • The empirical meropenem administration protocol independently contributed to the acquisition of nonsusceptibility in P. aeruginosa.
  • Modifications to empirical therapeutic strategies are essential.
  • Routine evaluation of antimicrobial use practices should be implemented to mitigate resistance.

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