Turkish Neurosurgery 2018 , Vol 28 , Num 4
Endovascular Treatment of Intracranial Anterior Circulation Aneurysms with Flow Diverters: A Single Centre Experience with Mid- and Long-Term Results
Ezel YALTIRIK BILGIN1,Baran ONAL1,Hakan EMMEZ2,Koray AKKAN1,Erhan ILGIT1,Erkan BILGIN1,Emetullah CINDIL1,Alp Ozgun BORCEK2
1Gazi University, School of Medicine, Department of Radiology, Ankara, Turkey
2Gazi University, School of Medicine, Department of Neurosurgery, Ankara, Turkey
DOI : 10.5137/1019-5149.JTN.20279-17.2 AIM: We report our experience with flow diverter devices in the treatment of intracranial aneurysms arising from the anterior circulation with mid- and long-term follow-up.

MATERIAL and METHODS: Seventy-eight aneurysms in 61 patients (range 25-81 years, 13 male, 48 female) were treated with flow diverter devices. Forty (51.3%) aneurysms were treated with a pipeline embolization device (PED), 24 (30.8%) aneurysms were treated with a SILK stent, 12 (15.4%) aneurysms were treated with a flow redirection endoluminal device (FRED) and two aneurysms were treated with a P64 Flow Modulation Device (P64). Angiographic follow-up data at six months and one year were recorded and the occlusion degrees of the aneurysms were evaluated according to the scale developed by Kamran et al.

RESULTS: At six-month follow-up, the complete occlusion (grade 4) rate was 60.8% and at one-year this rate had increased to 74.3%. Statistical analysis revealed a significant difference (p=0.002) between six-month and one-year follow-up results but there was no significant association (p=0.531, p=1.000) between aneurysm occlusion rate and aneurysm diameter. Two patients (3.2%) died due to hemorrhagic complications.

CONCLUSION: Endovascular treatment of intracranial anterior circulation aneurysms with flow diverters is a safe and effective treatment option. A high rate of stable occlusion is achieved at long-term follow-up. Keywords : Aneurysm, Endovascular treatment, Flow diverter, Stenting

Corresponding author : Baran ONAL, baranonal@yahoo.com