# Comparison of broad-spectrum anti-Pseudomonal beta-lactam antibiotics versus targeted therapy for neutropenic patients with methicillin-susceptible Staphylococcus aureus bloodstream infections

**Authors:** Lauren C. Russell, Jeff Klaus, Miguel A. Chavez, Erik R. Dubberke, Tamara Krekel

PMC · DOI: 10.1017/ash.2025.179 · Antimicrobial Stewardship & Healthcare Epidemiology : ASHE · 2025-05-13

## TL;DR

This study compares two antibiotic treatments for bloodstream infections in neutropenic patients and finds similar outcomes.

## Contribution

It provides evidence on the safety of targeted therapy for MSSA infections in neutropenic patients.

## Key findings

- No significant difference in clinical outcomes between broad-spectrum and targeted therapy.
- MSSA-targeted beta-lactam therapy is safe for neutropenic patients with MSSA bloodstream infections.

## Abstract

The safety of the utilization of methicillin-susceptible Staphylococcus aureus (MSSA)-targeted therapy for the treatment of MSSA bloodstream infections in the setting of neutropenia is not well studied. This single-center, retrospective cohort study of 40 patients found no significant difference in clinical outcomes between broad-spectrum anti-Pseudomonal and MSSA-targeted beta-lactam therapy.

## Linked entities

- **Species:** Staphylococcus aureus (taxon 1280)

## Full-text entities

- **Diseases:** neutropenic (MESH:D044504), neutropenia (MESH:D009503), bloodstream infections (MESH:D018805)
- **Chemicals:** methicillin (MESH:D008712), beta-lactam (MESH:D047090)
- **Species:** Staphylococcus aureus (species) [taxon 1280], Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

2 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12086594/full.md

## References

8 references — full list in the complete paper: https://tomesphere.com/paper/PMC12086594/full.md

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Source: https://tomesphere.com/paper/PMC12086594