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Updated: Aug 20, 2025

Assessing Bacterial Invasion of Cardiac Cells in Culture and Heart Colonization in Infected Mice Using Listeria monocytogenes
Published on: May 27, 2015
[Listeria endocarditis]
M Marschner1, C Hausdorf2,3, K Schlatterer4,5
1Abteilung für Innere Medizin/Kardiologie, Sankt Gertrauden-Krankenhaus, Berlin, Deutschland.
Listeria monocytogenes infections are rare but can cause severe illness, including endocarditis. Early diagnosis and collaborative treatment are crucial for managing this serious bacterial infection.
Area of Science:
- Cardiology
- Infectious Diseases
- Medical Microbiology
Background:
- Listeria monocytogenes infections are uncommon in clinical practice.
- Infections can manifest with non-specific symptoms or severe septic courses.
- Potential organ involvement includes cardiac, pulmonary, abdominal, and bone structures.
Observation:
- A 74-year-old male with a history of mitral valve replacement and pacemaker presented with fever and coagulopathy.
- Transesophageal echocardiography identified mitral valve endocarditis with early abscess formation.
- Blood cultures confirmed Listeria monocytogenes growth after 20 hours.
Findings:
- Despite prompt antibiotic therapy, the mitral valve endocarditis progressed.
- Cardiosurgical intervention became necessary due to disease progression.
- Listeria monocytogenes was identified as the causative agent of endocarditis.
Implications:
- Effective diagnosis of Listeria endocarditis necessitates collaboration among cardiologists, imaging specialists, and laboratory personnel.
- This case highlights the importance of recognizing Listeria as a potential cause of severe organ manifestations.
- Increased awareness can lead to earlier detection and improved patient outcomes for Listeria infections.
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Endocarditis II: Clinical Features of Infective Endocarditis
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Endocarditis III: Medical Management
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