Capnocytophaga ochracea-related bacterium bacteremia in a hypertrophic cardiomyopathy patient without neutropenia

Shimpei Ito, Hideharu Hagiya, Keigo Kimura, Isao Nishi, Hisao Yoshida, Hidetaka Kioka, Tomohito Ohtani, Osamu Yamaguchi, Kazuaki Tanabe, Kazunori Tomono, Yasushi Sakata

Research output: Contribution to journalArticlepeer-review


Gram-negative fusiform rods were detected in a blood culture obtained from a 63-year-old man who had been hospitalized for a long duration for severe heart failure. Although the organism could not be identified using a conventional method, it was finally identified as a bacterium of the Capnocytophaga ochracea group based on the results of biochemical testing, 16S rRNA sequencing and a matrix-assisted laser desorption ionization time-of-flight mass spectrometry analysis. Although neutropenic patients with poor oral hygiene are exclusively vulnerable to Capnocytophaga bacteremia, this case was unique because such predisposing conditions were not noted. A multi-centered investigation is warranted for a better understanding of this clinically rare, but potentially pathogenic organism.

Original languageEnglish
Pages (from-to)2731-2735
Number of pages5
JournalInternal Medicine
Issue number18
Publication statusPublished - 2016
Externally publishedYes


  • Bacteremia
  • Capnocytophaga
  • Genetic identification
  • Neutropenia
  • Oral hygiene

ASJC Scopus subject areas

  • Internal Medicine


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