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Updated: Aug 9, 2026
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Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling
Published on: April 7, 2015
[Subacute bacterial endocarditis due to Pasteurella pneumotropica. Case Report]
Maria Dan1, Cristina Prisacariu, G I M Georgescu
1Disciplina de Microbiologie Medicală, Facultatea de Medicină, Universitatea de Medicină si Farmacie "Gr. T. Popa", Iaşi.
Summary
This case report details a rare instance of bacterial endocarditis caused by Pasteurella pneumotropica in a patient with mitral stenosis. Successful treatment involved antibiotics and mitral valve replacement.
Area of Science:
- Infectious Diseases
- Cardiology
- Microbiology
Background:
- Bacterial endocarditis is a serious infection affecting heart valves.
- Pasteurella pneumotropica is an uncommon cause of endocarditis, particularly in humans.
Observation:
- A 43-year-old patient with mitral stenosis presented with lethargy, malaise, and hemiparesis.
- A new systolic murmur was detected on physical examination.
- Transthoracic echocardiography identified a vegetation on the mitral valve.
Findings:
- Blood cultures identified Pasteurella pneumotropica and its cell wall deficient forms (L-forms).
- The patient received a successful treatment regimen of gentamicin and ceftriaxone.
- Mitral valve replacement was performed following medical treatment.
Implications:
- Highlights the potential for Pasteurella pneumotropica to cause endocarditis, even in rare cases.
- Emphasizes the importance of considering unusual pathogens in bacterial endocarditis.
- Demonstrates successful management strategies including antibiotic therapy and surgical intervention.
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