Hepatic Artery Aneurysms: Evolution from Open to Endovascular Repair Techniques
With the development of endovascular therapy, treatment for hepatic artery aneurysm (HAA) has evolved from open excision and repair to include endovascular approaches. We reviewed our recent experience with HAA to help define the treatment of HAA. From 2002 to 2010, five patients underwent treatment of HAA, all men with a median age of 63.2 years (range, 41‐75). The median diameter of HAA was 5.8 cm (range, 2.4 cm‐11 cm). Four lesions involved the extrahepatic portion of the hepatic artery, and one was an intrahepatic HAA that involved the right hepatic artery. Three were true aneurysms and two were pseudoaneurysms associated with trauma. Four of the five HAA patients were symptomatic, three with nonspecific abdominal pain, and one with free hemorrhage from a ruptured intrahepatic pseudoaneurysm. All five underwent computed tomography and selective arteriography. Two patients underwent open surgical aneurysmectomy and revascularization because of aneurysm location and concerns of the potential lack of collateral flow. Three patients underwent an endovascular coil embolization because obliteration of a saccular aneurysm could be achieved without compromising arterial flow of the native hepatic vessel. Re-embolization was necessary in the intrahepatic aneurysm because of recanalization of a feeding vessel. Endovascular embolization is an important minimally invasive approach in the treatment of HAA. Depending on HAA location and the adequacy of collateral arterial flow around the lesion, open aneurysmectomy and revascularization may be required.
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Document Type: Research Article
Publication date: May 1, 2011
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