Turkish Neurosurgery 2023 , Vol 33 , Num 3
The Evaluation of Low-Profile Surpass EvolveTM Flow Diverter for Endovascular Treatment of Distal Cerebral Artery Aneurysms: A Single-Center Experience
Bige SAYIN1,Batuhan DERELI2,Yigit Can SENOL2,Ilkay AKMANGIT1,Ayberk KARAMAN2,Ergun DAGLIOGLU2,Ahmet Deniz BELEN2
1Ankara Bilkent City Hospital, Department of Interventional Neuroradiology, Ankara, Turkey
2Ankara Bilkent City Hospital, Department of Neurosurgery, Ankara, Turkey
DOI : 10.5137/1019-5149.JTN.42071-22.1 AIM: To report our experience with the 2.5-mm Surpass EvolveTM flow diverter (FD) in the treatment of distal small cerebral artery aneurysms.

MATERIAL and METHODS: This study included 41 patients with 52 aneurysms. Clinical and radiological records and procedural and follow-up outcomes were reviewed retrospectively.

RESULTS: The aneurysm morphology was saccular in 45 patients, dissecting in five patients, and fusiform in two patients. Fifty-two aneurysms were treated with 41 Surpass Evolve FDs. The mean diameters of the proximal and distal parent arteries were 2.56 and 2.17 mm, respectively. The mean duration of follow-up was 16.2 ± 6.6 (6?28) months. Four (10%) patients had acute subarachnoid hemorrhage. In the same session, two patients with two tandem aneurysms and one patient with four tandem aneurysms were treated using a single FD. Intraprocedural hemorrhage and femoral artery pseudoaneurysm occurred in two patients during the procedure. Digital subtraction angiography was performed on 38/41 (92%) patients with 47/52 (88%) having aneurysms. Complete occlusion (OKM D) was observed in 39/47 (82%) aneurysms, and near complete?complete occlusion (OKM C-D) was observed in 46/47 (98%) aneurysms.

CONCLUSION: Endovascular treatment of distal cerebral artery aneurysms with the 2.5-mm Surpass EvolveTM FD provides a high rate of aneurysm occlusion with low periprocedural complications, even in ruptured and tandem aneurysms. Keywords : Flow diverter, Low-profile, Small artery aneurysm, Surpass evolve

Corresponding author : Bige SAYIN, bigesayin99@yahoo.com.tr