At @ days , at least @ target aneurysm recurrence event had occurred in @ % of patients treated with bare metal coils and @ % of Matrix ( @ ) ( P = @ , log-rank test ) patients ; @ % of target aneurysm recurrence events were re-interventions for aneurysms that had not bled after treatment , and @ % of target aneurysm recurrence events resulted from hemorrhage or rehemorrhage , with or without retreatment .