Eikenella corrodens: Difference between revisions
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Eikenella corrodens
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Created page with "{{DISPLAYTITLE:''Eikenella corrodens''}} == Background == === Microbiology === * Facultatively anaerobic, fastidious Stain::Gram-negative Shape::bacillus in the genus Genus::Eikenella * Primary human pathogen within its genus * Member of the HACEK group of fastidious causes of infective endocarditis * Member of normal human mouth flora == Clinical Manifestations == * Associated with soft tissue infections after clenched fist injuries involving the hu..." |
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== Background == |
== Background == |
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=== Microbiology === |
=== Microbiology === |
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* Facultatively anaerobic, fastidious [[Stain::Gram-negative]] [[Shape::bacillus]] in the genus [[Genus::Eikenella]] |
* Facultatively anaerobic, oxidase-[[Oxidase::positive]] fastidious [[Stain::Gram-negative]] [[Shape::bacillus]] in the genus [[Genus::Eikenella]] |
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* Do not grow well on MacConkey agar |
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* Primary human pathogen within its genus |
* Primary human pathogen within its genus |
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* Member of the [[HACEK group]] of fastidious causes of infective endocarditis |
* Member of the [[HACEK group]] of fastidious causes of infective endocarditis |
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* Associated with soft tissue infections after clenched fist injuries involving the human mouth |
* Associated with soft tissue infections after clenched fist injuries involving the human mouth |
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* Can also caused head and neck infections, pneumonia, lung abscess |
* Can also caused head and neck infections, [[pneumonia]], [[lung abscess]] |
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* Can cause infective endocarditis |
* Can cause [[infective endocarditis]] |
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== Management == |
== Management == |
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* Often present in polymicrobial infections |
* Often present in polymicrobial infections |
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* Often susceptible to penicillins, but there is a risk of beta lactamases |
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* Empiric treatment for severe infections includes [[ceftriaxone]], [[ampicillin-sulbactam]], and [[piperacillin-tazobactam]] |
* Empiric treatment for severe infections includes [[ceftriaxone]], [[ampicillin-sulbactam]], and [[piperacillin-tazobactam]] |
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* Oral [[amoxicillin-clavulanic acid]] is another option |
** Oral [[amoxicillin-clavulanic acid]] is another option |
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* Often resistant to [[clindamycin]], [[metronidazole]], and [[aminoglycosides]] |
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* For infective endocarditis: 4 weeks of IV ceftriaxone |
* For infective endocarditis: 4 weeks of IV ceftriaxone |
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[[Category:Gram-negative bacilli]] |
[[Category:Gram-negative bacilli]] |
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Latest revision as of 01:56, 2 August 2025
Background
Microbiology
- Facultatively anaerobic, oxidase-positive fastidious Gram-negative bacillus in the genus Eikenella
- Do not grow well on MacConkey agar
- Primary human pathogen within its genus
- Member of the HACEK group of fastidious causes of infective endocarditis
- Member of normal human mouth flora
Clinical Manifestations
- Associated with soft tissue infections after clenched fist injuries involving the human mouth
- Can also caused head and neck infections, pneumonia, lung abscess
- Can cause infective endocarditis
Management
- Often present in polymicrobial infections
- Often susceptible to penicillins, but there is a risk of beta lactamases
- Empiric treatment for severe infections includes ceftriaxone, ampicillin-sulbactam, and piperacillin-tazobactam
- Oral amoxicillin-clavulanic acid is another option
- Often resistant to clindamycin, metronidazole, and aminoglycosides
- For infective endocarditis: 4 weeks of IV ceftriaxone
