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Abstract - Original Article

J Cerebrovasc Endovasc Neurosurg. 2022 24(4): 341-348
The Journal of Cerebrovascular and Endovascular Neurosurgery
      
 
Treatment results of anterior choroidal artery aneurysms treated mostly with coil embolization: A single-center experience
Hyun Ki Roh, Eun-Oh Jeong, Kyung Hwan Kim, Hee-Won Jeong, Han-Joo Lee, Seung-Won Choi, Seon-Hwan Kim, Hyeon-Song Koh, Jin-Young Youm, Hyon-Jo Kwon
Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Dajeon, Korea

Background: Anterior choroidal artery (AchA) aneurysms are usually small in diameter because of the size of the involved artery and are often wide-necked. Coil embolization of AchA aneurysm is thus challenging because of serious risks, such as thromboembolic occlusion of artery and perforation of aneurysm dome. Therefore, aneurysmal neck clipping remains widely performed despite a recent increase in the use of coil embolization for aneurysm treatment. We report the treatment results of AchA aneurysms mostly (92.3%) treated with coil embolization at our institute. Methods: The database and medical records of patients who underwent coil embolization for AchA aneurysms were retrospectively analyzed. The clinical and imaging results and procedure-related complications were investigated after coil embolization performed between January 2006 and March 2022 at our institute. Results: In total, 96 AchA aneurysms comprising 65 unruptured and 31 ruptured aneurysms, including only 1 ruptured aneurysm (1.0%) re-embolized at postoperative day 192 because of coil compaction, were evaluated. After the initial coil embolization, complete occlusion was attained in 41, residual neck in 45, and residual aneurysm in 10 patients. Follow-up radiological studies after 6–174 months were performed for 80 aneurysms. Complete occlusion was noted in 57 patients, residual neck in 22, and residual aneurysm in 1. The dysarthria experienced by one (1.0%) patient was the only symptomatic procedure-related complication. After coil embolization, neither delayed new rupture nor re-rupture was observed. Conclusions: The results of this study demonstrate that coil embolization is a safe and effective treatment option for patients with AchA aneurysms.
 
Key words : Anterior choroidal artery aneurysm, Cerebral aneurysm, Coil embolization, Outcome, Procedure-related complication
 
 
    
 
 
 

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