Infective endocarditis due to capnocytophaga canimorsus

Alessandro Frigiola, Toni Badia, Roberto Lovato, Alberto Cogo, Maria Pia Fugazzaro, Roberto Lovisetto, Marisa Di Donato

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We report the case of a 41-year-old old woman with severe mitral regurgitation due to infective endocarditis caused by a rare zoonotic microorganism (Capnocytophaga canimorsus). She had had a rheumatic mitral endocarditis successfully treated with antibiotics when she was 13 years old. She arrived to our attention for a fever of unknown origin. She had been bitten by her dog and medicated the wound herself. About 2 weeks later she developed a fever with values up to 39.5°C. Blood cultures were initially negative but in view of her particular history (dog bite), the samples were sent to a specialized center where a Capnocytophaga canimorsus (a commensal bacterium contained in the saliva of dogs and cats) infection sensitive to ceftriaxone was detected. The antibiotic therapy was consequently modified and the patient's fever resolved. At echocardiography a mild mitral stenosis with severe regurgitation (3-4+/4+) was detected. We planned surgical mitral repair but the operative findings clearly showed the need for mitral replacement and a 29 m size bileaflet mechanical prosthesis was implanted. The postoperative course was regular and the patient was discharged on the fifth day. We highlight the importance of a careful history and correct work-up for the diagnosis and treatment of false negative blood culture endocarditis.

Original languageEnglish
Pages (from-to)725-727
Number of pages3
JournalItalian Heart Journal
Volume4
Issue number10
Publication statusPublished - Oct 2003

Fingerprint

Capnocytophaga
Endocarditis
Dogs
Fever
History
Anti-Bacterial Agents
Fever of Unknown Origin
Ceftriaxone
Mitral Valve Stenosis
Zoonoses
Mitral Valve Insufficiency
Bites and Stings
Saliva
Prostheses and Implants
Echocardiography
Cats
Bacteria
Wounds and Injuries
Therapeutics
Infection

Keywords

  • Endocarditis
  • Mitral regurgitation

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Frigiola, A., Badia, T., Lovato, R., Cogo, A., Fugazzaro, M. P., Lovisetto, R., & Di Donato, M. (2003). Infective endocarditis due to capnocytophaga canimorsus. Italian Heart Journal, 4(10), 725-727.

Infective endocarditis due to capnocytophaga canimorsus. / Frigiola, Alessandro; Badia, Toni; Lovato, Roberto; Cogo, Alberto; Fugazzaro, Maria Pia; Lovisetto, Roberto; Di Donato, Marisa.

In: Italian Heart Journal, Vol. 4, No. 10, 10.2003, p. 725-727.

Research output: Contribution to journalArticle

Frigiola, A, Badia, T, Lovato, R, Cogo, A, Fugazzaro, MP, Lovisetto, R & Di Donato, M 2003, 'Infective endocarditis due to capnocytophaga canimorsus', Italian Heart Journal, vol. 4, no. 10, pp. 725-727.
Frigiola A, Badia T, Lovato R, Cogo A, Fugazzaro MP, Lovisetto R et al. Infective endocarditis due to capnocytophaga canimorsus. Italian Heart Journal. 2003 Oct;4(10):725-727.
Frigiola, Alessandro ; Badia, Toni ; Lovato, Roberto ; Cogo, Alberto ; Fugazzaro, Maria Pia ; Lovisetto, Roberto ; Di Donato, Marisa. / Infective endocarditis due to capnocytophaga canimorsus. In: Italian Heart Journal. 2003 ; Vol. 4, No. 10. pp. 725-727.
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