Journal of Neuroendovascular Therapy
Online ISSN : 2186-2494
Print ISSN : 1882-4072
Original Articles
Coil Embolization of Cerebral Tiny Aneurysms
Terumasa KuroiwaFuminori ShimizuTaro YamashitaRyo HiramatsuRyokichi YagiSeigo KimuraYoshitaka YamadaMakoto Yamada
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ジャーナル オープンアクセス

2016 年 10 巻 5 号 p. 243-248

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Purpose: We retrospectively examined the results of coil embolization for 28 cerebral tiny aneurysms (<3 mm), 73 small cerebral aneurysms (3–4 mm) and associated complications.

Subjects and Methods: From a total of 418 patients who underwent coil embolization of cerebral aneurysms (n = 433) between January 2008 and August 2015, we analyzed 28 cerebral tiny aneurysms (6.5%) and 73 small aneurysms (16.9%). The type of procedure, results of embolization, and complications were compared.

Results: For 23 (82.1%) of the 28 tiny aneurysms and 52 (71.2%) of the 73 small aneurysms, embolization was performed using a simple technique. Embolization resulted in complete obliteration (CO) and neck remnant (NR) in 26 (92.9%) of the 28 tiny aneurysms, and CO + NR was achieved in 62 (84.9%) of the 73 small aneurysms. Treatment was discontinued for one tiny aneurysm and one small aneurysm. Intraoperative rupture occurred in one tiny aneurysm and three small aneurysms. Thromboembolism was observed in one tiny aneurysm and one small aneurysm. Morbidity was encountered in one tiny aneurysm (thromboembolism), and mortality was associated with another tiny aneurysm (intraoperative rupture).

Conclusion: The results of coil embolization for tiny aneurysms were similar to those of small aneurysms. Coil embolization-related complications and prognosis were also considered to be similar.

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