Cardiobacterium hominis is a slow-growing, fastidious, capnophilic, Gram- negative bacillus represented by the “C” in HACEK, an acronym for. Cardiobacterium hominis is a member of the HACEK group (Haemophilus paraphrophilus, Haemophilus parainfluenzae, Aggregatibacter. Cardiobacterium hominis, a microaerophilic, pleomorphic gram-negative bacillus , is one of the AACEK organisms. C. hominis is a component of the normal flora.

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Cardiobacterium hominis – Wikipedia

In one reported case, in which cultures of blood and valve tissue remained negative, the diagnosis of C. Influence of referral bias on the apparent clinical spectrum of infective endocarditis.

Routine Gram-staining and subculturing is essential since hominjs is likely to be no visible change, such as turbidity or haemolysis, in the blood culture medium. The patient’s dental history was not obtained. Infection due to Actinobacillus actinomycetemcomitans: Endocarditis due to Cardiobacterium hominis.

The recommended dose of ceftriaxone is 2g once cardoibacterium intravenously or intramuscularly. Rev Infect Dis ; 5: Jobanputra RS, Moysey J. Conclusion C hominis is an infrequent cause of endocarditis.

Infectious diseases Bacterial disease: In this case, the patient was treated successfully with ciprofloxacin 3.

Cardiobacterium hominis endocarditis: two cases and a review of the literature

In two cases, C. Table 3 Physical and laboratory findings in 53 cases of C.


A CT scan showed discitis at the L3—L4 level and lytic lesions within carciobacterium lumbar vertebrae; further studies confirmed the diagnosis of multiple myeloma. Peripheral stigmata of endocarditis were not observed, with the exception of mild splenomegaly. ActinobacillusCapnocytophagaEikenellaKingellaPasteurellaand other fastidious or rarely encountered gram-negative rods. It will seldom grow on MacConkey agar or other enteric media.

Cardiobacterium hominis is a slow-growing, fastidious, capnophilic, Gram-negative bacillus represented by the “C” in HACEK, an acronym for Haemophilus species, Actinobacillus actinomycetemcomitansC. Presentation of a case [Letter]. Boll Ist Sieroter Milan ; Yonsei Med J ; Articles with incomplete citations from December All articles with incomplete citations Articles with ‘species’ microformats. Five days prior to admission, the patient underwent a colonoscopy.

Cardiobacterium bominisEndocarditis.

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This was the case with the patient described in the present report. Slotnick IJ, Dougherty M. However, pulmonary valve involvement has been documented Can J Cardiol ; 6: The patient’s troponin I value was slightly increased at 0. Weiner M, Werthamer S. Favorable prognosis of patients with prosthetic valve endocarditis caused by gram-negative bacilli of the HACEK group. Clin Micro Rev ; Of the seven cases of prosthetic valve endocarditis, the aortic was replaced in 5, the mitral valve in 1, and both valves in 1.

The patient’s postoperative course was complicated by cardiac tamponade related to bleeding from sternal wires, necessitating a second operation, and third-degree heart block requiring placement of a pacemaker. The isolate described in the first of these two cases 20 was reported to be resistant to cefotaxime in addition to penicillin, although the criteria used to determine resistance were unclear.


A fifty-six-year-old Caucasian man with no significant past medical history was transferred to the tertiary care Health Sciences Centre Winnipeg, Manitoba from a peripheral hospital with new-onset congestive heart failure. Open in a separate window.

T reatment regimens ranged from ampicillin or ceftriaxone alone for 4 weeks, to penicillin or ampicillin, plus gentamicin for almost 6 weeks, and in the only reported case of aortic homograft valve infection, ceftriaxone and gentamicin for 18 cardoobacterium followed by oral amoxicillin. The patient was transferred to the medical intensive care unit, where he was subsequently intubated for respiratory failure and treated with inotropes for cardiogenic shock.

Report of one case and review of the literature.

Table 2 Site of infection of C. Their patient developed renal toxicity while receiving treatment with mezlocillin and gentamicin, relapsed on mezlocillin alone, and was cured with ciprofloxacin. Fluorescent antibody detection of human occurrence of an unclassified bacterial group causing endocarditis.

Cellular fatty acid analysis can help differentiate C. Atypical presentation of Cardiobacterium hominis endocarditis.