Rebleeding after endovascular embolization of XXXX .

@entity1 @entity548 @entity3538 @entity439 @entity1756
This study retrospectively reviewed 227 @entity1 with @entity1756 who underwent endovascular embolization with detachable coils between March 1997 and March 2006 to establish the incidence of rebleeding after endovascular treatment for @entity1756 and identify the risk factors. The site and size of the @entity439 , the interval between treatment and rebleeding, and the outcome were investigated in six of the 227 @entity1 (2.6%) who rebled after treatment. Four @entity1 had large or @entity439 located on the internal carotid artery at the origin of the posterior communicating artery. The interval between treatment and rebleeding was less than 1 year in four @entity1 (mean 394.2 days). Two @entity1 died, and the survivors had modified Rankin Scale scores of 0, 2, 3, and 4. Re-embolization was performed in four @entity1 and no further @entity548 occurred during the mean follow-up period of 1.9 years after re-treatment. @entity1 with @entity3538 are at increased risk for rebleeding. Re-treatment should be considered if there is conventional and/or magnetic resonance angiographic evidence of dome filling. @entity1 with @entity1756 must be followed up with diagnostic imaging closely during the first 12 months post-embolization because rebleeding frequently occurs within 1 year after initial treatment. Re-embolization is safe and effective in @entity1 with recurrent @entity548 from @entity439 previously embolized with detachable coils.
