Silent native-valve endocarditis caused by Propionibacterium acnes

Rintaro Yamamoto, Shigeru Miyagawa, Hideharu Hagiya, Keigo Kimura, Isao Nishi, Norihisa Yamamoto, Hisao Yoshida, Yukihiro Akeda, Kazunori Tomono, Koichi Toda, Yoshiki Sawa

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


We describe a rare case of Propionibacterium acnes native-valve endocarditis that silently progressed in a 67-year-old man with hybrid dialysis. The patient was scheduled for kidney transplantation, and pre-operative investigation incidentally detected a vegetative structure at his native mitral valve that had increased in size. He underwent cardiac surgery and P. acnes was detected in cultures of a resected cardiac valve specimen and blood. This case highlights that P. acnes can silently cause infective endocarditis in a native-valve, and that physicians should consider the possibility of infection when P. acnes is isolated in blood cultures.

Original languageEnglish
Pages (from-to)2417-2420
Number of pages4
JournalInternal Medicine
Issue number16
Publication statusPublished - 2018
Externally publishedYes


  • Anaerobe
  • Hemodialysis
  • Infective endocarditis
  • Native valve
  • Propionibacterium acnes

ASJC Scopus subject areas

  • Internal Medicine


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