Abstract 174: Treatment of Unruptured Saccular Aneurysms with PED: A Systematic Review and Meta‐Analysis of Long‐Term Outcomes

Introduction The Pipeline Embolization Device (PED) is commonly used for intracranial aneurysm treatment. While its effectiveness for certain types of aneurysms is well‐established, its efficacy for saccular aneurysms remains debatable. This review and meta‐analysis aimed to assess the long‐term out...

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Main Authors: Jorge A. Rios Zermeno, Abdel Karim Ghaith, Elena Greco, Loizos Michaelides, Omar R. Ortega Ruiz, Umme H. Faisal, Rabih G. Tawk
Format: Article
Language:English
Published: Wiley 2023-11-01
Series:Stroke: Vascular and Interventional Neurology
Online Access:https://www.ahajournals.org/doi/10.1161/SVIN.03.suppl_2.174
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author Jorge A. Rios Zermeno
Abdel Karim Ghaith
Elena Greco
Loizos Michaelides
Omar R. Ortega Ruiz
Umme H. Faisal
Rabih G. Tawk
author_facet Jorge A. Rios Zermeno
Abdel Karim Ghaith
Elena Greco
Loizos Michaelides
Omar R. Ortega Ruiz
Umme H. Faisal
Rabih G. Tawk
author_sort Jorge A. Rios Zermeno
collection DOAJ
description Introduction The Pipeline Embolization Device (PED) is commonly used for intracranial aneurysm treatment. While its effectiveness for certain types of aneurysms is well‐established, its efficacy for saccular aneurysms remains debatable. This review and meta‐analysis aimed to assess the long‐term outcomes of PED treatment for unruptured intracranial aneurysms (UIA). Methods A systematic review and meta‐analysis were conducted following PRISMA guidelines. Studies with at least one year of follow‐up after PED treatment for saccular aneurysms were included. The primary endpoint was angiographic complete aneurysm occlusion at long‐term (≥ 12 mo.) follow‐up. Secondary outcomes included long‐term complications. We conducted a meta‐regression analysis to explore the potential sources of heterogeneity across studies. Results Eleven studies on 594 patients with 726 aneurysms were included, of which 5% were previously treated. The mean age was 55.7 years, and 78.3% were women. The mean aneurysm size was 7.72 mm, 8.95% were treated with more than one device, and 2.9% had adjunct coiling. The long‐term complete occlusion rate was 81% (CI 95%: 72% to 88%, p<0.01). Regarding long‐term complications, the rate of symptomatic ischemic stroke was 1% (CI 95%: 0% to 4%, p=0.07), the rate of delayed rupture was 1% (95%, CI 0% to 3%, p=0.02), and the rate of intracranial hemorrhage was 3% (CI 95%: 1% to 6%, p=0.81). The meta‐regression analysis revealed a decreasing trend per year for aneurysmal occlusion, ischemic stroke rate, and aneurysmal rupture rate over time and an increasing trend for ICH over time. Conclusion PED demonstrates high long‐term occlusion and low complication rates, suggesting it is a safe and effective treatment option for unruptured intracranial saccular aneurysms. However, studies with greater than 5‐10 years of follow‐up are needed to evaluate the clinical and radiographical outcomes of incompletely occluded aneurysms Additionally, as newer devices exhibit reduced thrombogenic profiles and ICH rates increase over time, reevaluation of antiplatelet therapy's role, including dosage and DAPT, is warranted.
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spelling doaj-art-a7a846a0c24b4d6b93bb60e7feacdbaf2025-08-20T02:26:20ZengWileyStroke: Vascular and Interventional Neurology2694-57462023-11-013S210.1161/SVIN.03.suppl_2.174Abstract 174: Treatment of Unruptured Saccular Aneurysms with PED: A Systematic Review and Meta‐Analysis of Long‐Term OutcomesJorge A. Rios Zermeno0Abdel Karim Ghaith1Elena Greco2Loizos Michaelides3Omar R. Ortega Ruiz4Umme H. Faisal5Rabih G. Tawk6Mayo Clinic Florida United StateMayo Clinic Minnesota United StatesMayo Clinic Florida United StatesMayo Clinic Florida United StatesTecnologico de Monterrey Nuevo Leon MexicoAIIMS Kalyani West Bengal IndiaMayo Clinic Florida United StatesIntroduction The Pipeline Embolization Device (PED) is commonly used for intracranial aneurysm treatment. While its effectiveness for certain types of aneurysms is well‐established, its efficacy for saccular aneurysms remains debatable. This review and meta‐analysis aimed to assess the long‐term outcomes of PED treatment for unruptured intracranial aneurysms (UIA). Methods A systematic review and meta‐analysis were conducted following PRISMA guidelines. Studies with at least one year of follow‐up after PED treatment for saccular aneurysms were included. The primary endpoint was angiographic complete aneurysm occlusion at long‐term (≥ 12 mo.) follow‐up. Secondary outcomes included long‐term complications. We conducted a meta‐regression analysis to explore the potential sources of heterogeneity across studies. Results Eleven studies on 594 patients with 726 aneurysms were included, of which 5% were previously treated. The mean age was 55.7 years, and 78.3% were women. The mean aneurysm size was 7.72 mm, 8.95% were treated with more than one device, and 2.9% had adjunct coiling. The long‐term complete occlusion rate was 81% (CI 95%: 72% to 88%, p<0.01). Regarding long‐term complications, the rate of symptomatic ischemic stroke was 1% (CI 95%: 0% to 4%, p=0.07), the rate of delayed rupture was 1% (95%, CI 0% to 3%, p=0.02), and the rate of intracranial hemorrhage was 3% (CI 95%: 1% to 6%, p=0.81). The meta‐regression analysis revealed a decreasing trend per year for aneurysmal occlusion, ischemic stroke rate, and aneurysmal rupture rate over time and an increasing trend for ICH over time. Conclusion PED demonstrates high long‐term occlusion and low complication rates, suggesting it is a safe and effective treatment option for unruptured intracranial saccular aneurysms. However, studies with greater than 5‐10 years of follow‐up are needed to evaluate the clinical and radiographical outcomes of incompletely occluded aneurysms Additionally, as newer devices exhibit reduced thrombogenic profiles and ICH rates increase over time, reevaluation of antiplatelet therapy's role, including dosage and DAPT, is warranted.https://www.ahajournals.org/doi/10.1161/SVIN.03.suppl_2.174
spellingShingle Jorge A. Rios Zermeno
Abdel Karim Ghaith
Elena Greco
Loizos Michaelides
Omar R. Ortega Ruiz
Umme H. Faisal
Rabih G. Tawk
Abstract 174: Treatment of Unruptured Saccular Aneurysms with PED: A Systematic Review and Meta‐Analysis of Long‐Term Outcomes
Stroke: Vascular and Interventional Neurology
title Abstract 174: Treatment of Unruptured Saccular Aneurysms with PED: A Systematic Review and Meta‐Analysis of Long‐Term Outcomes
title_full Abstract 174: Treatment of Unruptured Saccular Aneurysms with PED: A Systematic Review and Meta‐Analysis of Long‐Term Outcomes
title_fullStr Abstract 174: Treatment of Unruptured Saccular Aneurysms with PED: A Systematic Review and Meta‐Analysis of Long‐Term Outcomes
title_full_unstemmed Abstract 174: Treatment of Unruptured Saccular Aneurysms with PED: A Systematic Review and Meta‐Analysis of Long‐Term Outcomes
title_short Abstract 174: Treatment of Unruptured Saccular Aneurysms with PED: A Systematic Review and Meta‐Analysis of Long‐Term Outcomes
title_sort abstract 174 treatment of unruptured saccular aneurysms with ped a systematic review and meta analysis of long term outcomes
url https://www.ahajournals.org/doi/10.1161/SVIN.03.suppl_2.174
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