Bora Korkmazer1, Burak Kocak2, Civan Islak3, Naci Kocer3, Osman Kizilkilic4. 1. Department of Radiology, Canakkale Mehmet Akif Ersoy State Hospital, Canakkale, Turkey. 2. Department of Radiology, Istanbul Training and Research Hospital, Istanbul, Turkey. 3. Department of Radiology, Division of Neuroradiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, 34098, Istanbul, Turkey. 4. Department of Radiology, Division of Neuroradiology, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, 34098, Istanbul, Turkey. osmank@istanbul.edu.tr.
Abstract
PURPOSE: Endovascular techniques are frequently used for the treatment of intracranial aneurysms and flow diverter stents are relatively new and important devices in this field. The aim of our study is to report long-term follow-up results of flow diversion treatment. METHODS: We retrospectively examined angiographic images and clinical reports of 133 patients (female, 112 [84%]; mean age, 46.3 years [range, 12-70 years]) who were treated with flow diverters between 2008 and 2013 and were followed up radiologically at least 1 year. The aneurysms treated with flow diverters were assessed according to technical problems, stent patency, residual filling, re-growth, and occlusion status, and the patients were assessed according to morbidity and mortality. RESULTS: Except for ten patients, one aneurysm was treated per patient. Median duration of the follow-up was 927 days. Total occlusion rates in angiographic follow-up were found 76.2% for the sixth-month, 86.7% for the first-year, 93.6% for the third-year, 94.2% for the fifth-year, and 90.2% for entire follow-up period. Nine stent morphology changes were observed in the angiographic controls. Overall mortality and morbidity rates were 3.7% and 4.3%, respectively. CONCLUSION: Despite technical difficulties and delayed hemorrhages, flow diverter stents are effective tools for the treatment of challenging aneurysms in the long run. Nonetheless, long-term results of flow diversion treatment must be evaluated hemodynamically and clinically in multicenter studies.
PURPOSE: Endovascular techniques are frequently used for the treatment of intracranial aneurysms and flow diverter stents are relatively new and important devices in this field. The aim of our study is to report long-term follow-up results of flow diversion treatment. METHODS: We retrospectively examined angiographic images and clinical reports of 133 patients (female, 112 [84%]; mean age, 46.3 years [range, 12-70 years]) who were treated with flow diverters between 2008 and 2013 and were followed up radiologically at least 1 year. The aneurysms treated with flow diverters were assessed according to technical problems, stent patency, residual filling, re-growth, and occlusion status, and the patients were assessed according to morbidity and mortality. RESULTS: Except for ten patients, one aneurysm was treated per patient. Median duration of the follow-up was 927 days. Total occlusion rates in angiographic follow-up were found 76.2% for the sixth-month, 86.7% for the first-year, 93.6% for the third-year, 94.2% for the fifth-year, and 90.2% for entire follow-up period. Nine stent morphology changes were observed in the angiographic controls. Overall mortality and morbidity rates were 3.7% and 4.3%, respectively. CONCLUSION: Despite technical difficulties and delayed hemorrhages, flow diverter stents are effective tools for the treatment of challenging aneurysms in the long run. Nonetheless, long-term results of flow diversion treatment must be evaluated hemodynamically and clinically in multicenter studies.
Authors: Kaitlyn Tidwell; Seth Harriet; Vishal Barot; Andrew Bauer; Melville B Vaughan; Mohammad R Hossan Journal: Bioengineering (Basel) Date: 2021-11-12
Authors: David Vergara-Garcia; Juan Felipe Abaunza-Camacho; Mariana Agudelo-Arrieta; William Mauricio Riveros; Alberto Caballero Journal: Surg Neurol Int Date: 2021-09-30