We describe a case of A1 segment occlusion caused by a tangled Guglielmi de
tachable coil (GDC) during an endovascular treatment for a ruptured anterio
r communicating aneurysm. Immediate surgical recanalisation of the occluded
artery and clipping of the aneurysm rescued the patient. This case demonst
rates that an emergency surgical team, as well as an operating room, should
be available during any complicated intra-aneurysmal procedure, so that ti
mely surgical intervention could be carried out without delay. (C) 2000 Har
court Publishers Ltd.