PDAコイルによるアンカー法が塞栓に有用であった巨大脾動脈瘤の1例

概要

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We report a case of successful coil embolization of an ostial type giant splenic artery aneurysm using the coil anchor technique. A 5-cm aneurysm was pointed out in the abdomen by screening ultrasonography in a man in his late 70s. It was later proven to be a splenic artery aneurysm by contrast enhanced abdominal CT. He was referred to us for embolotherapy of the aneurysm, which was located at the splenic artery 1 cm distal to its branching-off point from the celiac artery. It seemed difficult to embolize the afferent artery of the aneurysm by the usual isolation technique because the afferent artery was too short to deploy microcoils safely without risk of migration, and the aneurysm was too large to be packed by microcoils alone. Therefore, after coil embolization of the efferent artery, we used a 0.035 inch detachable patent ductus arteriosus (PDA) coil as a coil anchor for safe deployment of additional 0.018 inch microcoils. This technique resulted in safe deployment of both types of coil in the afferent artery without their migration into the celiac trunk and aneurismal sac. Thus this coil anchor technique with a PDA coil may be useful for successful isolation of a visceral aneurysm whose target vessel is too short to be safely embolized by the usual isolation technique.
一般社団法人日本インターベンショナルラジオロジー学会の論文