Clinical follow-up study of intracranial aneurysm occlusion with expandable hydrocoil

Objective To study the short-term and long-term effectiveness of intracranial aneurysm occlusion with expandable hydrocoil. Methods Forty-one patients with intracranial aneurysms (n=45) were treated by endovascular occlusion with expandable hydrocoil. Follow-up interviews in the forms of DSA, CTA or MRA were conducted to the 41 patients within 6-24 months after the treatment to find out the tumor recurrence and complications. Results In the 41 patients, 1 died, 1 suffered from recurrence, 3 developed cerebral infarction, 1 got oculomotor paralysis, 2 got hydrocephalus. According to modified Rankin scale, grade 0 in 8 cases, grade 1 in 19, grade 2 in 7, grade 3 in 3, grade 4 in 2, grade 5 in 1 and grade 6 in 1. Conclusions Endovascular embolization with expandable hydrocoil is an effective treatment method for intracranial aneurysms, especially for parent artery occlusion, but it may be able to cause more complications in the treatment of small aneurysms (＜5mm), so the caution should be taken. Key words: Intracranial aneurysm;  Embolization, therapeutic;  Hydrocoil;  Follow-up studies