Surgical Therapy of a Vertebral Artery Aneurysm With Saccular and Fusiform Segments

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Vertebral artery aneurysms form a group of aneurysms having high rates of rebleeding, morbidity, and mortality, poor treatment outcomes, as well as low rate of surgical treatment.

Examinations for subarachnoid bleeding revealed a vertebral artery aneurysm with a diameter of 12 mm in a 67-year-old man who presented with headache. The vertebral artery aneurysm with saccular and fusiform segments was shrunk and clipped via lateral left suboccipital approach. No neurologic deficit was present at the postoperative period. Control digital subtraction angiography showed complete shrinkage of aneurysm with continued blood flow and no residue. Clinical findings, treatments, and surgical approaches of VA aneurysms are different from anterior and posterior circulation aneurysms. Microneurosurgical clipping is the most effective treatment of vertebral artery aneurysms in suitable cases. Although endovascular intervention is commonly applied as therapeutic modality for patients with vertebral artery aneurysm, researchers have also emphasized that saccular vertebral aneurysms with fusiform extension can also be surgically treated in suitable cases.

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