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Multi-resistant Escherichia coli and mycotic aneurysm: two case reports
Journal of Medical Case Reports
|October 16, 2009
Summary
Multi-resistant Escherichia coli caused rare mycotic aneurysms in two patients. This strain may increase the risk of endovascular infections, particularly in extra-aortic locations, warranting further surveillance.
Area of Science:
- Vascular Surgery
- Infectious Diseases
- Radiology
Background:
- Mycotic aneurysms are rare, with Escherichia coli being an uncommon cause.
- This report details two cases of mycotic aneurysms caused by the same multi-resistant Escherichia coli strain.
Purpose of the Study:
- To highlight the potential association between this specific Escherichia coli strain and an increased risk of endovascular infections.
- To emphasize the diagnostic challenges and serious consequences of mycotic aneurysms.
Main Methods:
- Case report detailing two patients with Escherichia coli septicaemia.
- Diagnostic imaging included CT scans and ultrasound to identify pseudoaneurysms.
Main Results:
- Case 1: Two intra-thoracic pseudoaneurysms with haematomas identified via CT scans.
- Case 2: A pseudoaneurysm of the right common carotid artery identified via ultrasound.
Conclusions:
- Suggests this multi-resistant Escherichia coli strain may pose an increased risk for endovascular infections, especially in extra-aortic sites.
- Recommends considering infected aneurysms in older patients with atheromatosis and prolonged Escherichia coli septicaemia.
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