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Mycotic aneurysm due to Yersinia enterocolitica
Abstract:
Infections of the cardiovascular system, besides involving both natural and prosthetic heart valves, vascular grafts, and indwelling venous and arterial cannulas, may cause mycotic aneurysms. The latter frequently complicate endocarditis; however, they may occur as isolated phenomena. Enterobacteriaceae are uncommon etiologic agents in vascular infections; however, a patient is reported who presented initially with a bacteremia due to Yersinia enterocolitica biogroup 4 and despite antimicrobial therapy developed a mycotic aneurysm of the left internal carotid artery. Clinical manifestations, pathogenesis, and treatment of yersiniosis are reviewed.
Insights
A rare case of mycotic aneurysm caused by Yersinia enterocolitica bacteremia is presented. This study highlights the potential for unusual Enterobacteriaceae to cause serious vascular infections, even with treatment.
Area of Science:
- Cardiovascular Infections
- Vascular Surgery
- Infectious Diseases
Background:
- Mycotic aneurysms are serious cardiovascular infections that can arise from endocarditis or as isolated events.
- While uncommon, Enterobacteriaceae can cause vascular infections, posing diagnostic and therapeutic challenges.
Observation:
- A patient developed a mycotic aneurysm of the left internal carotid artery despite antimicrobial therapy for Yersinia enterocolitica bacteremia.
- Yersinia enterocolitica biogroup 4 was identified as the causative agent, presenting an unusual etiology for this type of vascular complication.
Findings:
- This case underscores the importance of considering rare pathogens in the differential diagnosis of mycotic aneurysms.
- The development of a mycotic aneurysm despite appropriate antimicrobial treatment highlights the aggressive nature of certain Yersinia infections.
Implications:
- Early recognition and aggressive management are crucial for patients with suspected Yersinia-induced vascular infections.
- Further research into the pathogenesis and optimal treatment strategies for Yersiniosis-related mycotic aneurysms is warranted.