A Case Report: Ruptured Popliteal Aneurysm Caused by Haemophilus Influenzae Infection
Sophia G Bunde1, Chinweoke C Osigwe1, Eric Hager2
1University of Pittsburgh School of Medicine, Pittsburgh, PA.
Abstract:
Mycotic aneurysms arise from infection of an arterial wall secondary to septic emboli from endocarditis. Although rare, most mycotic aneurysms involve the abdominal aorta, with Staphylococcus aureus and Salmonella spp being the most common causative organisms. We report a case of an 81-year-old woman with a ruptured mycotic popliteal aneurysm from Haemophilus influenzae infection.
Insights
Mycotic aneurysms, infections of artery walls, are rare but serious. This case highlights a ruptured popliteal artery aneurysm caused by Haemophilus influenzae infection in an elderly woman.
Area of Science:
- Vascular Surgery
- Infectious Diseases
- Cardiology
Background:
- Mycotic aneurysms result from infected arterial walls, often due to septic emboli from endocarditis.
- While uncommon, abdominal aortic aneurysms are the most frequent presentation.
- Staphylococcus aureus and Salmonella species are typical causative agents.
Observation:
- This report details an 81-year-old female patient.
- The patient presented with a ruptured mycotic popliteal aneurysm.
Findings:
- The causative organism identified was Haemophilus influenzae.
- This represents an unusual pathogen for mycotic aneurysms.
Implications:
- This case expands the known spectrum of pathogens causing mycotic aneurysms.
- Highlights the importance of considering diverse infectious agents in arterial infections.
- Underscores the need for prompt diagnosis and management of mycotic aneurysms, regardless of location.
