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Related Experiment Video

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Aerococcus urinae endocarditis - A case report.

Helene G Meyer1, Balthasar L Hug1,2

  • 1Internal Medicine, Lucerne Cantonal Hospital, Luzerner Kantonsspital, Spitalstrasse, 6000 Luzern 16, Switzerland.

Idcases
|August 27, 2024
PubMed
Summary
This summary is machine-generated.

Aerococcus urinae, a bacterium often mistaken for others, is increasingly recognized as a cause of urinary tract infections and endocarditis. This case highlights its potential for severe infections and challenges in antibiotic treatment.

Keywords:
Aerococcus spp.BacteremiaInfective endocarditisMitral valveUrinary tract infection

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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Cardiology

Background:

  • Aerococcus urinae, a gram-positive coccus, was historically underestimated due to its resemblance to other bacteria.
  • Advancements in diagnostic methods like MALDI-TOF have improved the identification and recognition of Aerococcus urinae.

Observation:

  • A 69-year-old male presented with fever and shoulder pain, later diagnosed with mitral valve infective endocarditis.
  • The patient had a recent history of obstructive renal infection treated with trimethoprim-sulfamethoxazole.
  • Echocardiography confirmed mitral valve vegetations and severe insufficiency, with urine and blood cultures positive for Aerococcus urinae.

Findings:

  • Aerococcus urinae was identified as the causative agent of infective endocarditis in this case.
  • The bacterium presents challenges in antibiotic susceptibility, impacting treatment strategies for urinary tract infections and endocarditis.
  • This case adds to the limited reports of Aerococcus urinae endocarditis, underscoring its emerging role as a pathogen.

Implications:

  • Increased awareness and improved diagnostics are crucial for recognizing Aerococcus urinae's role in infections.
  • Understanding the antibiotic susceptibility patterns of Aerococcus urinae is vital for effective clinical management.
  • Further research into Aerococcus urinae infections is needed to guide treatment protocols and improve patient outcomes.