Objectives: The aim of this article is to report an alternative approach for the management of a distal aneurysm of superior mesenteric artery using direct percutaneous ultrasound-guided Onyx injection.
Methods: We report a rare case of symptomatic superior mesenteric artery aneurysm. A 78-year-old man presents with pain and pulsating mass in the right umbilical region of the abdomen. The patient was treated by percutaneous ultrasound-guided Onyx injection after several failing transarterial embolization attempts.
Results: The procedure was successful without any complication, and the patient wasdischarged to home the day after procedure. Follow-up at 60 months confirmed the complete thrombosis of the aneurysm sac. Ultrasound-guided Onyx injection for distal superior mesenteric artery aneurysm could provide an alternative to transcatheter arterial embolization or open surgery. Anatomical assessment of collaterals and knowledge of abdomen anatomy could play important roles in preventing bowel ischemia and minimizing the risk of procedural complication.
Conclusion: Ultrasound-guided Onyx injection of superior mesenteric artery aneurysm is a feasible, effective, and cost-saving technique that can be used when endovascular approach is not possible or has failed.
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