Turkish Neurosurgery 2023 , Vol 33 , Num 4
Flow Diversion Therapy of Remnant and Recurrent Intracranial Aneurysms Treated Surgically
Erol AKGUL1,Hasan Bilen ONAN2,Yusuf CAN3,Gulhan ERTAN3,Cengiz EROL3,Ahmet CETINKAL4,Celal CINAR5,Bahattin HAKYEMEZ6,Altan YILDIZ7,Ismail ORAN5,Zeki SEKERCI8
1Istanbul Medipol University, International School of Medicine, Radiology Department, Interventional Neuroradiology Section, Istanbul, Turkey
2Cukurova University, School of Medicine, Radiology Department, Interventional Neuroradiology Section, Adana, Turkey
3Istanbul Medipol University, School of Medicine, Radiology Department, Istanbul, Turkey
4Istanbul Medipol University, School of Medicine, Neurosurgery Department, Istanbul, Turkey
5Ege University, School of Medicine, Radiology Department, Interventional Neuroradiology Section, Izmir, Turkey
6Uludag University, School of Medicine, Radiology Department, Interventional Neuroradiology Section, Bursa, Turkey
7Mersin University, School of Medicine, Radiology Department, Interventional Neuroradiology Section, Mersin, Turkey
8Istanbul Medipol University, International School of Medicine, Neurosurgery Department, Istanbul, Turkey
DOI : 10.5137/1019-5149.JTN.41653-22.2 AIM: To evaluate the safety and efficacy of flow diverter stents (FDSs) for treating remnant or recurrent intracranial aneurysms that were treated surgically.

MATERIAL and METHODS: The patients who were treated with FDSs due to remnant or recurrent intracranial aneurysms after microsurgery were included in the study. The patients? demographics, treatment histories, aneurysm features, complications associated with flow diversion, and neurological and angiographic follow-up findings were evaluated.

RESULTS: Twenty patients (eight males) with 20 aneurysms were included in the study. Of 20 aneurysms, 18 (90%) were in the anterior, and two (10%) were in the posterior circulation. The initial treatment methods were clipping in 17 (85%) and wrapping in three (15%) aneurysms. The endovascular procedure was successful in all patients. In three patients (15%), periprocedural and postprocedural complications were encountered. No hemorrhagic complications were detected on cone-beam computed tomography. One patient with a basilary aneurysm died because of brain stem ischemia. The total morbimortality was 5%. The mean length of follow-up was 13.7 ± 7.3 months in 18 patients. The first angiographic follow-up (3?6 months) revealed the complete occlusion in 7 of 11 aneurysms (63.6%). By contrast, 16 aneurysms (94.1%) were occluded at the last angiographic follow-up, one aneurysm (5.9%) was still filling.

CONCLUSION: An FDS seems effective, safe, and extremely attractive in treating remnant and recurrent intracranial aneurysms treated surgically. Keywords : Flow diverter stent, Cerebral aneurysm, Recurrent aneurysm, Remnant aneurysm, Surgical treatment

Corresponding author : Erol AKGUL, akgulerol@gmail.com