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[Surgical treatment of vertebral artery confluence aneurysms].

BACKGROUND: Aneurysms of vertebral artery confluence and proximal parts of basilar artery are extremely rare. They are usually combined with proximal fenestration of basilar artery. No timely surgical treatment of these aneurysms is associated with high risk of adverse outcomes, and their treatment is a challenge for neurosurgeons.

MATERIAL AND METHODS: We analyzed postoperative outcomes in 17 patients with 21 aneurysms of vertebral artery confluence and proximal parts of basilar artery.

RESULTS: Six patients with 10 aneurysms underwent microsurgical resection, 11 patients with 11 aneurysms - endovascular procedure. Persistent postoperative deterioration was observed in 5 (29.4%) patients: severe neurological symptoms (GOS grade 3) in 1 case (5.9%), minor bulbar disorders in 4 cases (23.53%). There were no lethal outcomes.

CONCLUSION: According to our own and literature data, aneurysms of vertebral artery confluence are extremely rare. The risk of rupture of these aneurysms is extremely high. Endovascular approach is preferred in these patients. Microsurgical procedure is an acceptable alternative if endovascular surgery is impossible.

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