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Infective endocarditis due to Enterobacter cloacae resistant to third- and fourth-generation cephalosporins
Yusuke Yoshino1, Shu Okugawa2, Satoshi Kimura1
1Department of Internal Medicine, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-8606, Japan.
Abstract:
We report the case of using a long-term combination of meropenem and amikacin to treat infective endocarditis caused by Enterobacter cloacae resistant to third- and fourth-generation cephalosporins. Multi-drug resistant Gram-negative bacilli, such as the E. cloacae in our study, may become possible pathogens of infective endocarditis. Our experience with this case indicates that long-term use of a combination of β-lactam and aminoglycosides might represent a suitable management option for future infective endocarditis cases due to non-Haemophilus, Actinobacillus, Cardiobacterium, Eikenella, Kingella spp. (HACEK group) Gram-negative bacilli such as ours.
Insights
This case study shows long-term meropenem and amikacin effectively treated infective endocarditis caused by drug-resistant Enterobacter cloacae. This combination therapy offers a potential strategy for similar Gram-negative bacterial infections.
Area of Science:
- Infectious Diseases
- Microbiology
- Pharmacology
Background:
- Infective endocarditis (IE) is a serious infection, often caused by bacteria.
- Multi-drug resistant Gram-negative bacilli are emerging as challenging IE pathogens.
- Enterobacter cloacae resistant to cephalosporins presents a significant treatment hurdle.
Observation:
- A case of IE caused by multi-drug resistant Enterobacter cloacae was reported.
- The patient was treated with a long-term combination of meropenem and amikacin.
- This regimen targeted the cephalosporin-resistant Gram-negative bacteria.
Findings:
- The combination therapy of meropenem and amikacin demonstrated successful treatment of IE.
- This approach proved effective against a resistant strain of Enterobacter cloacae.
- Long-term administration of beta-lactam and aminoglycoside was key.
Implications:
- This therapeutic strategy may be applicable to future IE cases caused by similar pathogens.
- It highlights the potential of combining beta-lactam and aminoglycoside antibiotics.
- This offers a viable option for treating IE due to non-HACEK Gram-negative bacilli.
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