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Subject Area

Obstetrics and Gynecology

Article Type

Original Study

Abstract

Objectives The aim of the study was to assess the feasibility and safety of endovascular treatment of small intracranial aneurysms. Background Endovascular coiling of small intracranial aneurysms is still controversial mainly owing to possible technical difficulties in such groups of aneurysms. Patients and methods We retrospectively analyzed the angiographic and clinical effects of endovascular therapy of 98 small intracranial aneurysms (≤5 mm), both ruptured and unruptured, between March 2002 and August 2013. The angiographic and clinical outcomes of those patients were studied retrospectively using chart reviews, operative, and angiographic reports. Glasgow Outcome Scale was used as a clinical follow-up tool. The overall outcome and the pretreatment variables predicting outcomes were analyzed thoroughly. Results Aneurysm occlusion was complete in 64.3%, a neck remnant in 19.4%, and aneurysm body filling in 16.3% of the small aneurysms embolized. According to Glasgow Outcome Scale, clinical outcome showed good recovery in 76.5%, moderate disability in 6.1%, severe disability in 8.2%, vegetative state in 5.1%, and death in 4.1%. The complication rate was 9.2% (9/98). Five of nine complications occurred in patients with ruptured aneurysms. Four patients died, three were harboring ruptured aneurysms, and one had an unruptured aneurysm. Conclusion Endovascular embolization may be an effective and feasible treatment for small intracranial aneurysms.

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