CTICasesRetrograde Extension of Type B Aortic Dissection into the Aortic Arch with Endovascular Repair
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Imaging findings
Initial imaging demonstrates a Type B communicating aortic dissection extending into the abdomen. Two days later, there is retrograde extension into the more proximal descending aorta and aortic arch, with features suggestive of an intramural hematoma proximally. Post-repair imaging shows a stent-graft covering the proximal entry point, with a graft for the subclavian artery. A small potential endoleak is observed.
Key takeaways
Type B aortic dissections can extend retrograde into the aortic arch, often presenting as an intramural hematoma. Such cases may require endovascular stent-graft repair, which can involve covering the subclavian artery. Close monitoring for endoleaks and cerebral ischemic events is crucial post-procedure.
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