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Dialister pneumosintes and aortic graft infection - a case report
Rachel Patel1,2, Debra S T Chong3, Alison J Guy3
1Royal Devon University Healthcare NHS Foundation Trust, Exeter, UK. rachelsarahpatel@gmail.com.
BMC Infectious Diseases
|September 19, 2023
Summary
This study reports the first case of Dialister pneumosintes causing aortic graft infection and aortoenteric fistula. Successful treatment involved surgery and antibiotics, highlighting a new potential complication of this oral bacterium.
Area of Science:
- Infectious Diseases
- Vascular Surgery
- Microbiology
Background:
- Dialister pneumosintes is an anaerobic, Gram-negative bacillus found in the human oral cavity, linked to periodontitis.
- This bacterium has been implicated in various local infections, including dental abscesses and sinusitis, and can spread to distant organs.
Observation:
- A 75-year-old male presented with an aortic graft infection and aortoenteric fistula (AEF).
- Blood cultures and septic emboli revealed Dialister pneumosintes bacteraemia, alongside other gastrointestinal flora.
Findings:
- This is the first reported case of Dialister pneumosintes associated with aortic graft infection and AEF.
- The infection may have originated from the gastrointestinal tract or a dental source, seeding the aortic graft.
Implications:
- This case expands the spectrum of known Dialister pneumosintes infections to include vascular graft complications.
- Early recognition and appropriate surgical and antimicrobial management are crucial for treating such rare infections.
