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[Two cases of Achromobacter xylosoxidans sepsis]

A Kobayashi1, K Mori, M Konishi

  • 1Second Department of Internal Medicine, Nara Medical University.

Insights

Achromobacter xylosoxidans bacteremia is rare in humans, particularly in immunocompromised patients. This study reports two cases in patients with hematologic malignancies, suggesting a link to catheters and neutropenia.

Area of Science:

  • Medical Microbiology
  • Infectious Diseases

Background:

  • Achromobacter xylosoxidans is a Gram-negative bacterium found in diverse environments, including hospitals.
  • Human infections with A. xylosoxidans can lead to various conditions, but bacteremia is uncommon.
  • Limited data exists on the treatment of A. xylosoxidans bacteremia.

Observation:

  • Two cases of A. xylosoxidans bacteremia in patients with hematologic malignancies (plasmacytoma and acute lymphatic leukemia) are presented.
  • Both patients had indwelling catheters and presented with neutropenia (WBC counts of 20/microliter and 35/microliter).

Findings:

  • A. xylosoxidans bacteremia occurred in two immunocompromised patients.
  • The presence of catheters and neutropenia were noted in both cases.

Implications:

  • Catheter use and neutropenia may be risk factors for developing A. xylosoxidans bacteremia in susceptible individuals.
  • Further research is needed to understand the pathogenesis and optimal treatment strategies for A. xylosoxidans bacteremia.

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