Endovascular treatment of intracranial posterior circulation aneurysms / 中国介入影像与治疗学

ABSTRACT

Objective To investigate the characteristics of intracranial posterior circulation aneurysms,and to evaluate the clinical outcomes of interventional endovascular therapy.Methods The clinical and imaging data,interventional therapy and observed effect,postoperative follow-up results of 40 patients with intracranial posterior circulation aneurysms treated with interventional endovascular therapy were analyzed retrospectively.Results Forty-two posterior circulation aneurysms were detected in 40 patients,and were treated successfully.Endovascular treatments included simple coil embolization (n=8),stem-assisted coil embolization (n=28),simple Onyx embolotherapy (n =1),aneurysms and parent artery occlusion (n=5).DSA performed immediately after treatment revealed that complete occlusion were achieved in 30 aneurysms,nearly complete occlusion in 6 aneurysms and partial occlusion in 6 aneurysms.DSA performed 6 months after treatment revealed that complete occlusion were achieved in 36 aneurysms,nearly complete occlusion in 4 aneurysms and partial occlusion in 1 aneurysms.At the time of discharge,the modified Rankin scale (mRS) scores were 0 point in 35 patients,1 point in 3 patients,2 point in 1 patient and 6 point in 1 dead patient.Three to six months after discharge from hospital,the mRS scores were 0 point in 38 patients and 1 point in 1 patient.No new neurological dysfunction or aneurysms recurred.Conclusion The intracranial posterior circulation aneurysms have special clinical and imaging features,and most of intracranial posterior circulation aneurysms are complex.Endovascular treatment is safe and effective for the intracranial posterior circulation aneurysms.