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Cardiobacterium hominis and Cardiobacterium valvarum: Two Case Stories with Infective Episodes in Pacemaker Treated

Tina Bennett Bonavent1, Xiaohui Chen Nielsen2, Kjeld Skødebjerg Kristensen1

  • 1Department of Internal Medicine, Holbæk Hospital, Holbæk, Denmark.

The Open Microbiology Journal
|January 13, 2017
PubMed

Insights

Cardiobacterium species can cause rare infective endocarditis in patients with cardiac devices. These cases highlight diverse disease severity and the need for vigilant follow-up to detect relapsing infections.

Area of Science:

  • Infectious Diseases
  • Cardiology
  • Medical Microbiology

Background:

  • Cardiobacterium hominis and Cardiobacterium valvarum are rare causes of infective endocarditis.
  • Increasing prevalence of cardiac device implantation.

Purpose of the Study:

  • To present two cases of infective endocarditis caused by Cardiobacterium species in patients with cardiac pacemakers.
  • To illustrate the spectrum of disease presentation and management.

Main Methods:

  • Case report of two patients with pacemaker-treated infective endocarditis.
  • Blood cultures, echocardiography, and device management were utilized.

Main Results:

  • One patient experienced relapsing Cardiobacterium hominis infection over two years, requiring device and lead removal.
  • The second patient with Cardiobacterium valvarum presented with a large vegetation on a bicuspid aortic valve.

Conclusions:

  • Cardiobacterium species exhibit diverse disease severity in infective endocarditis.
  • Close patient follow-up is crucial to identify silent, relapsing infections, especially in those with cardiac devices.
Abstract

Keywords:
Antibiotic treatmentCardiac deviceCardiobacterium hominisCardiobacterium valvarumInfective endocarditis

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