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Experimental Endocarditis Model of Methicillin Resistant Staphylococcus aureus (MRSA) in Rat
Published on: June 4, 2012
Native triple-valve endocarditis caused by penicillin-resistant Streptococcus sanguis.
Isil Bavunoglu1, Serap Sahin, Mesut Yilmaz
1Department of Internal Medicine, Cerrahpasa Medical Faculty, University of Istanbul, Istanbul, Turkey. isilbavunoglu@gmail.com
Nature Clinical Practice. Cardiovascular Medicine
|May 25, 2007
Summary
This case study highlights a rare instance of multivalvular infective endocarditis caused by Streptococcus sanguis in a young man with a ventricular septal defect. The infection demonstrated significant penicillin resistance, necessitating a complex treatment approach.
Area of Science:
- Cardiology
- Infectious Diseases
- Microbiology
Background:
- A 26-year-old male with an untreated ventricular septal defect presented with symptoms of infection.
- Echocardiography revealed vegetations on the mitral, aortic, and tricuspid valves.
Observation:
- Blood cultures identified Streptococcus sanguis.
- The isolate exhibited a penicillin minimum inhibitory concentration of 3 µg/mL, indicating high-level resistance.
Findings:
- The patient was diagnosed with multivalvular infective endocarditis.
- The causative agent, S. sanguis, demonstrated notable penicillin resistance.
Implications:
- This case underscores the importance of considering infective endocarditis in patients with congenital heart defects presenting with systemic symptoms.
- The findings emphasize the need for tailored antimicrobial strategies, including combination therapy with vancomycin and gentamicin, and early surgical intervention for resistant strains.
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