• S Mangiafico, G Guarnieri, A Consoli, G Ambrosanio, and M Muto.
• Interventional Neuroradiology Unit, Careggi University Hospital, Florence, Italy. mangiax@libero.it
• Eur J Radiol. 2013 Oct 1;82(10):1638-45.

AbstractThe treatment of unruptured intracranial aneurysms (UIAs) remains complex and not clearly defined. While for ruptured intracranial aneurysms the management and the treatment option (surgery or endovascular treatment) are well defined by several trials, for asymptomatic UIAs the best management is still currently uncertain. The rationale to treat an UIA is to prevent the rupture and its consequent SAH and all complications derived from hemorrhage or reduce/eliminate neurological palsy. Although this statement is correct, the indication to treat an UIA should be based on a correct balance between the natural history of UIA and treatment risk. Patient's clinical history, aneurysm characteristics, and strategy management influence the natural history of UIAs and treatment outcomes. In the last 10 years and more, two important large multicenter studies were performed in order to analysis of all these factors and to evaluate the best treatment option for UIAs. The aim of this paper is to try to synthesize the possible indications to the endovascular treatment (EVT), when and how to treat an UIA.Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.

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