Endovascular coil embolization of unruptured intracranial aneurysms: A Korean multicenter study

Soon Chan Kwon, O. Ki Kwon, Jae Seung Ahn, Byung Duk Kwon, Dooh Hoon Kwon, Min Woo Baik, Seong Rim Kim, Young Woo Kim, Jun Su Byeon, Sung Nam Hwang, Taek Kyun Nam, Jae Hyung Choi, Jae Taeck Huh, Myong Jin Kang, Jin Young Jung, Keun Tae Cho, Seung Koan Hong, Byeong Cheol Kim, Seung Gyun Hwang, Chan Jong RyuDae Seob Choi, Cheol Hee Lee, In Sung Park, Gyojun Hwang, Seung Hun Sheen, Young Il Chun, Chang Taek Moon, Hong Gee Roh, Jun Seok Koh, Chang Woo Ryu, Hee Sup Shin, Dong Hun Kang, Youg Sun Kim, Jaechan Park, Tae Sik Kong, Seung Chyul Hong, Pyoung Jeon, Jong Soo Kim, Jae Seung Bang, Chang Wan Oh, Young Dae Cho, Moon Hee Han, Hyun Seung Kang, Hack Gun Bae, Seok Mann Yoon, Il Gyu Yun, Sung Jin Cho, Sukh Que Park, Sung Tae Park, Min Ho Kim, Shang Hun Shin, Myeong Sub Lee, Ji Woong Oh, Kum Whang, Cheol Hun Jang, Young Jin Jung

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Background and objective: Endovascular coil embolization has been a major treatment modality for unruptured intracranial aneurysms (UIAs) in South Korea. However, there are still few reports on the outcomes of this procedure. We performed a retrospective, multicenter study to determine how safe and effective coiling for UIA has been over the most recent 3 years in South Korea. Materials and methods: We analyzed a total of 2,180 UIAs in 2,035 patients who were treated by coiling from January 2007 to December 2009 at 22 centers in South Korea, with a focus on patient characteristics, the location and size of the aneurysms, procedural complications, and angiographic and clinical outcomes. Results: Coiling was successful in 98.0 % of the cases (2,137/2,180 aneurysms). Immediate post-procedural angiography demonstrated complete occlusion in 62.6 % (1,337/2,137 aneurysms), residual neck in 32.4 % (692/2,137), and residual sac in 5.0 % (108/2,137) of the cases. The rate of any procedure-related adverse event was 6.9 % (148/2,137 aneurysms). The rates of permanent morbidity and mortality were 1.8 % (39/2,137 aneurysms) and 0.1 % (2/2,137 aneurysms), respectively. Follow-up conventional angiography or MRA at ≥6 months was performed in 85.7 % (1,832/2,137 aneurysms) of cases. Among the eligible aneurysms for follow-up angiographic analysis, major recanalization was noted in 3.9 % (72/1,832 aneurysms, mean follow-up interval, 12 months). Among these, 68 aneurysms (3.7 %) were re-treated. An aneurysm of the middle cerebral artery (MCA) was a risk factor for incomplete occlusion (P = 0.049) and major recanalization (P = 0.046). During follow-up, no aneurysmal rupture occurred. Conclusions: Endovascular coil embolization of UIAs has been an effective preventive modality with low procedure-related morbidity in South Korea.

Original languageEnglish
Pages (from-to)847-854
Number of pages8
JournalActa Neurochirurgica
Volume156
Issue number5
DOIs
StatePublished - May 2014

Keywords

  • Coiling
  • Multicenter study
  • South Korea
  • Unruptured intracranial aneurysms

Fingerprint

Dive into the research topics of 'Endovascular coil embolization of unruptured intracranial aneurysms: A Korean multicenter study'. Together they form a unique fingerprint.

Cite this