Endovascular embolization for posterior cerebral artery aneurysms

Objective To investigate the methods and safety of endovascular embolization for treatment of posterior cerebral artery aneurysms.Methods Eight patients with posterior cerebral artery aneurysms treated by using endovascular embolization were analyzed retrospectively.The clinical features, method of treatment and prognosis of the patients were summarized.Results ①There were eight patients with 8 aneurysms.Of those, one aneurysm was located at the P1 segment, 2 were at the P1-P2 segment, 3 were at the P2 segment, and 2 were at the P3 segment.There were 6 patients with fusiform or dissecting aneurysm and 2 with saccular aneurysm.②One patient was treated by balloon occlusion of parent artery. Five patients were treated by coil packing of the aneurysmal sacs and parent artery occlusion.Two patients were treated by coil packing of the aneurysmal sacs only.③After the procedure, DSA showed that all the aneurysms disappeared completely.There were no ischemic symptoms in the six patients with parent arteries occlusion after the procedure.No neurological deficits and other intervention-related complications were found in all the patients.④No recurrence of the aneurysm was observed under DSA re-examination 3 to 6 months after the procedure.The patients were followed up for 1 to 12 years and all returned to their normal life.Conclusion Endovascular embolization is a safe and effective therapeutic approach for posterior cerebral artery aneurysms.