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Published on: May 14, 2020
A case report of a rapidly growing giant coronary pseudoaneurysm: challenges and lessons learned
Hani J Alturkmani1, Srikanth Vallurupalli1,2, Malek Al-Hawwas1,2
1University of Arkansas for Medical Sciences, 4301 West Markham Street, Little Rock, AR 72205, USA.
Insights
Giant coronary pseudoaneurysms are rare but serious complications. This case highlights the diagnostic and management challenges of a giant right coronary pseudoaneurysm, ultimately requiring surgical resection.
Area of Science:
- Cardiology
- Interventional Cardiology
- Vascular Surgery
Background:
- Coronary pseudoaneurysm is a rare, potentially fatal complication following coronary interventions.
- Management strategies for coronary pseudoaneurysms remain uncertain due to limited evidence.
Observation:
- A 56-year-old male presented with atypical ST-elevation myocardial infarction symptoms.
- Initial angiography revealed a lesion likely connected to the aorta, which resolved after stent placement.
- The patient later developed staph aureus bacteremia, infective endocarditis, and heart block, leading to the identification of a giant right coronary pseudoaneurysm.
Findings:
- Diagnostic challenges included differentiating the pseudoaneurysm from other cardiac lesions.
- Endovascular treatment with a covered stent was unsuccessful in managing the giant pseudoaneurysm.
- Surgical resection was ultimately required for definitive treatment.
Implications:
- This case underscores the importance of considering infectious etiologies in coronary pseudoaneurysm development.
- It highlights the technical difficulties and limitations of endovascular approaches for large coronary pseudoaneurysms.
- The presented case contributes to the limited evidence base for managing complex coronary pseudoaneurysms and suggests a need for a structured management algorithm.
Background:
Coronary pseudoaneurysm is a rare, potentially fatal, complication of coronary intervention. A challenging management case of a giant right coronary pseudoaneurysm is presented.
Case Summary:
A 56-year-old man presented with an atypical presentation for ST-elevation myocardial infarction. Initial angiogram showed a crescent-shaped ostial lesion with probable connection to the aorta, which disappeared after placing a drug-eluting stent. A few hours later, patient was found to have staph aureus bacteraemia and infective endocarditis for which he received a prolonged antibiotic course. Patient presented a few weeks later with second degree heart block. Echocardiography showed a large cystic lesion adjacent to the right coronary cusp suspicious for a coronary pseudoaneurysm, which was confirmed with angiography. Attempts to treat it with a covered stent were unsuccessful and patient ultimately underwent surgical resection.
Discussion:
Coronary pseudoaneurysm develops when there is a contained breach of all three layers of the vessel. It may develop from direct iatrogenic trauma to the vessel wall but can be infectious in aetiology. The treatment approach remains uncertain due to limited evidence. Here, we present the diagnostic and technical challenges of managing such an uncommon entity and discuss an algorithm for management.
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