A case of successful flow alteration treatment by endovascular treatment for basilar tip thrombotic giant aneurysm

Abstract

We describe an 86-year-old woman with right hemiparesis and double vision. MRI revealed a 25.1-mm basilar tip thrombotic aneurysm. The right vertebral artery was dominant, and we performed a balloon occlusion test (BOT) in the right vertebral artery and ischemia resistance was confirmed. We performed right vertebral artery occlusion by coil embolization. After surgery, right hemiparesis and double vision were gradually improved, and MRI revealed the loss of blood flow signal in the aneurysm and improved peripheral edema. Flow alteration by endovascular treatment can be a useful treatment for basilar tip thrombotic giant aneurysm with careful examination of hemodynamics.