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[Tamponade due to Porphyromonas gingivalis].
G Leurent1, B Vaquette, D Balde
1Département de cardiologie et maladies vasculaires, CHU Pontchaillou, 2, rue Henri le Guilloux, 35033 Rennes.
Archives Des Maladies Du Coeur Et Des Vaisseaux
|March 25, 2006
Summary
A rare case of cardiac tamponade was linked to Porphyromonas gingivalis, a bacterium typically causing periodontitis. This finding highlights a novel infectious etiology for post-myocardial infarction complications.
Area of Science:
- Infectious Diseases
- Cardiology
- Microbiology
Background:
- Myocardial infarction (MI) management often involves angioplasty and endoprosthesis insertion.
- Cardiac tamponade is a serious complication, typically associated with various etiological factors.
- Infectious causes of tamponade are well-documented but less common in the context of recent cardiac interventions.
Observation:
- A 45-year-old male presented with cardiac tamponade 10 weeks post-angioplasty and endoprosthesis for myocardial infarction.
- Pericardial fluid analysis using RNA 16S investigation and ribotyping identified Porphyromonas gingivalis.
- Porphyromonas gingivalis is a strict anaerobic bacillus primarily associated with periodontal disease.
Findings:
- This case represents the first reported instance of Porphyromonas gingivalis infection leading to cardiac tamponade in a patient with a history of myocardial infarction and intervention.
- The study suggests five potential aetio-pathological mechanisms, including fissure syndrome, malignant tamponade, post-infarction pericardial syndrome, endoprosthesis infection, and infectious tamponade.
- The ribotyping method, utilizing DNA coding for RNA 16S, proved effective in identifying the causative microorganism.
Implications:
- This discovery expands the differential diagnosis for cardiac tamponade in post-MI patients, particularly those with endoprostheses.
- It underscores the importance of considering less common pathogens and potential oral-systemic links in cardiovascular complications.
- The study validates the utility of advanced molecular techniques like RNA 16S sequencing and ribotyping for identifying novel infectious agents in clinical settings.