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Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA
Published on: February 9, 2011
Staphylococcus aureus native mitral valve endocarditis associated with bed bug bites - A case report and review of
Richard Amoateng1, Abraham Attah1, Ibrahim Ahmed2
1Internal Medicine department, Allegheny General Hospital, Pittsburgh, PA 15212, USA.
Abstract:
Staphylococcus aureus is a leading cause of community acquired bacteremia and infective endocarditis. S. aureus is a part of the normal skin flora in approximately one third of the human population. Infective endocarditis due to S. aureus can cause several complications and is associated with increased mortality. A 48-year-old female with no significant medical history presented with S. aureus bacteremia and native mitral valve endocarditis. Multiple cutaneous skin lesions were identified, which she reported were due to recent bed bug bites. No source of infection was found except for the skin lesions. Her hospital course was complicated by pulmonary and cerebral septic emboli, left pleural empyema, and acute renal injury. We suspected the bed bug skin bites were the most likely source of bacteremia. Bed bugs carry many human pathogens but have not been shown to be a competent vector. We did not find any literature on endocarditis associated with bed bug bites; thus, our case will be a novel finding.
Insights
This case report details a Staphylococcus aureus bacteremia and endocarditis infection potentially linked to bed bug bites. The findings highlight a novel association between insect bites and severe Staphylococcus aureus infections.
Area of Science:
- Infectious Diseases
- Dermatology
- Public Health
Background:
- Staphylococcus aureus is a common cause of bacteremia and infective endocarditis.
- Staphylococcus aureus resides on the skin of a significant portion of the human population.
- Infective endocarditis caused by S. aureus leads to severe complications and mortality.
Observation:
- A 48-year-old female presented with S. aureus bacteremia and native mitral valve endocarditis.
- The patient had multiple skin lesions attributed to recent bed bug bites.
- No other source of infection was identified besides the skin lesions.
Findings:
- The patient experienced complications including septic emboli, empyema, and acute kidney injury.
- Bed bug bites were identified as the suspected source of the S. aureus bacteremia.
- A review of existing literature revealed no prior cases of endocarditis associated with bed bug bites.
Implications:
- This case suggests a potential, novel transmission route for Staphylococcus aureus infections.
- Further research is warranted to investigate the role of bed bugs as vectors for human pathogens.
- Understanding potential environmental sources of infection is crucial for public health and clinical practice.
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