Combination of coils and Onyx 18 for treatment of large sidewall aneurysms of internal carotid artery

Abstract

Objective To investigate the safety of combination of coils and Onyx 18 for the treatment of large sidewall aneurysms of internal carotid artery.Methods Ten patients with ten large sidewall aneurysms of intemal carotid artery were treated with combination of coils and Onyx 18,and the clinical data were recorded.The immediate occlusion of aneurysms,complications and outcomes were reviewed.Results Seven aneurysms were completely occluded.Two aneurysms with neck remnants and one with dome remnant were shown at the immediate angiography.Two patients had transient neurological deficits.All of the patients were followed-up with 16 months of median duration.Good outcomes were achieved in all the patients without neurological deficits.Eight patients received DSA examination during the follow-up period.One aneurysm was recanalization,and one remained stable.There was no recanalization in five aneurysms,but one patient had the occluded parent artery.Conclusions Combination of coils and Onyx 18 could be used for the treatment of large sidewall aneurysms of internal carotid artery. Key words: Large internal carotid artery aneurysm; Sidewall aneurysm; Combined embolization ; Onyx18