Cerebral aneurysm recurrence is characterized by the recanalization of an aneurysm lumen after treatment with embolization coils, necessitating additional interventional measures. Recurrence rates of < 34% have been reported (with major recurrence rates of < 21% cited).1 The etiology of cerebral aneurysm recurrence remains unclear; however, compaction of embolization coils within a treated aneurysm lumen has been referenced in the literature as the primary mechanism of recurrence.Nevertheless, it should be noted that the evidence presented has been observational in nature and thus qualitative.
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