Related Experiment Video
Updated: May 4, 2026

Experimental Endocarditis Model of Methicillin Resistant Staphylococcus aureus MRSA in Rat
Published on: June 4, 2012
A case of subacute infective endocarditis and blood access infection caused by Enterococcus durans
Tsuneaki Kenzaka1, Noriko Takamura, Ayako Kumabe
1Division of General Medicine, Center for Community Medicine, Jichi Medical University School of Medicine, Shimotsuke, Japan. smile.kenzaka@jichi.ac.jp.
Background:
Infection by Enterococcus durans (E. durans) is very rare; reported cases are often preceded by therapy or an immunosuppressed state, including infective endocarditis, urinary tract infection, or wound infection. A few reported cases of infective endocarditis exist, with no reports describing involvement of blood access infection.
Case Presentation:
The patient is an 83-year-old man who had been undergoing hemodialysis for 8 years due to renal failure caused by diabetic nephropathy. He developed infective endocarditis and blood access infection/infective aneurysm due to Enterococcus durans; these conditions were treated with the antibiotic regimen of ampicillin + gentamicin. There have been only a few reported cases of infective endocarditis caused by E. durans, and to our knowledge, this is the first report of blood access infection.
Conclusions:
We have experienced a case of concurrent infective endocarditis and blood access infection/infective aneurysm caused by E. durans. This is the world's first reported case of blood access infection/infective aneurysm by E. durans.
Insights
Enterococcus durans (E. durans) infections are rare. This report details the first known case of concurrent infective endocarditis and blood access infection caused by E. durans in a hemodialysis patient.
Area of Science:
- Infectious Diseases
- Cardiology
- Nephrology
Background:
- Enterococcus durans (E. durans) infections are infrequently reported, typically in immunocompromised individuals or those with pre-existing conditions like infective endocarditis or wound infections.
- While E. durans endocarditis cases are documented, concurrent blood access infections have not been previously described.
Observation:
- An 83-year-old male undergoing long-term hemodialysis for diabetic nephropathy developed concurrent infective endocarditis and a blood access infection/infective aneurysm.
- The causative agent identified was Enterococcus durans.
Findings:
- This case represents the first documented instance of Enterococcus durans causing both infective endocarditis and a blood access infection/infective aneurysm.
- The patient was successfully treated with ampicillin plus gentamicin.
Implications:
- Highlights the potential for E. durans to cause complex, concurrent infections in vulnerable patient populations, such as those on hemodialysis.
- Underscores the importance of considering rare pathogens in the diagnosis and management of infections associated with medical devices and vascular access.
- Suggests the need for increased awareness and potentially revised diagnostic or treatment guidelines for E. durans-related bloodstream and access site infections.
Related Concept Videos
Endocarditis I: Introduction
Endocarditis II: Clinical Features of Infective Endocarditis
Endocarditis IV: Nursing Management
Endocarditis III: Medical Management
Rheumatic Heart Disease I: Introduction
Healthcare Associated Infections I: Iatrogenic, Exogenic and Endogenic
HAIs significantly increase the cost of health care. Extended stays in healthcare institutions, increased disability, increased costs of medications, including specialized antibiotics, and prolonged recovery times add to the patient's expenses and the healthcare institution and funding bodies.
