Abstract 1122‐000227: Stenting Versus Medical Treatment for Chronic Internal Carotid Artery Occlusions: A Systematic Review and Meta‐analysis

Introduction: Chronic internal carotid occlusion is responsible for 10–15% ischemic strokes or transit ischemic attacks (TIA). Subsequent ipsilateral ischemic stroke rate is 5.9% per year. However, this risk can increase up to 23% in two years in a subgroup of patients with poor collaterals regardle...

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Main Authors: Cynthia Zevallos Mau, Cynthia B Zevallos, Milagros Galecio‐Castillo, Sameer Ansari, Julie Weng, Juan Vivanco‐Suarez, Andres Dajles, Darko Quispe‐Orozco, Alan Mendez‐Ruiz, Mudassir Farooqui, Santiago Ortega‐Gutierrez
Format: Article
Language:English
Published: Wiley 2021-11-01
Series:Stroke: Vascular and Interventional Neurology
Subjects:
Online Access:https://www.ahajournals.org/doi/10.1161/SVIN.01.suppl_1.000227
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author Cynthia Zevallos Mau
Cynthia B Zevallos
Milagros Galecio‐Castillo
Sameer Ansari
Julie Weng
Juan Vivanco‐Suarez
Andres Dajles
Darko Quispe‐Orozco
Alan Mendez‐Ruiz
Mudassir Farooqui
Santiago Ortega‐Gutierrez
author_facet Cynthia Zevallos Mau
Cynthia B Zevallos
Milagros Galecio‐Castillo
Sameer Ansari
Julie Weng
Juan Vivanco‐Suarez
Andres Dajles
Darko Quispe‐Orozco
Alan Mendez‐Ruiz
Mudassir Farooqui
Santiago Ortega‐Gutierrez
author_sort Cynthia Zevallos Mau
collection DOAJ
description Introduction: Chronic internal carotid occlusion is responsible for 10–15% ischemic strokes or transit ischemic attacks (TIA). Subsequent ipsilateral ischemic stroke rate is 5.9% per year. However, this risk can increase up to 23% in two years in a subgroup of patients with poor collaterals regardless of medical therapy with antiplatelet or anticoagulant agents. Prevention of subsequent stroke in patients with carotid artery occlusion remains a difficult challenge. Carotid artery stenting (CAS) has recently been considered in its management. However, there is ambiguity on its safety. We aim to evaluate the safety and feasibility of CAS and compared it with medical management. Methods: We performed a systematic review and meta‐analysis to compare long‐term outcome (stroke recurrence) of current carotid occlusion treatments (CAS vs medical therapy). Two independent reviewers performed the screening, data extraction, and quality assessment. A random effects model was used for analysis. Results: A total of 5720 studies were screened. Of these, 11 studies were included in our systematic review and meta‐analysis of proportions. The CAS group has lower proportions of recurrent strokes (5% vs 30%,) after 30 days than medical therapy alone. Additionally, the proportion of periprocedural intracranial hemorrhage was 4.4% (95% CI 2.5 to 6.8) in the CAS group. Conclusions: CAS of the chronically occluded cervical ICA seems to be a safe procedure with lower rates of recurrent stroke in clinical follow up. Future randomized studies are warranted to guide the optimal management of this complex disease.
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spelling doaj.art-dbf000756bb0483fade4d2848953efa12023-01-18T21:39:24ZengWileyStroke: Vascular and Interventional Neurology2694-57462021-11-011S110.1161/SVIN.01.suppl_1.000227Abstract 1122‐000227: Stenting Versus Medical Treatment for Chronic Internal Carotid Artery Occlusions: A Systematic Review and Meta‐analysisCynthia Zevallos Mau0Cynthia B Zevallos1Milagros Galecio‐Castillo2Sameer Ansari3Julie Weng4Juan Vivanco‐Suarez5Andres Dajles6Darko Quispe‐Orozco7Alan Mendez‐Ruiz8Mudassir Farooqui9Santiago Ortega‐Gutierrez10University of Iowa Hospitals and Clinics, Iowa City Iowa United States of AmericaUniversity of Iowa Hospitals and Clinics, Iowa City Iowa United States of AmericaUniversity of Iowa Hospitals and Clinics, Iowa City Iowa United States of AmericaUniversity of Iowa Hospitals and Clinics, Iowa City Iowa United States of AmericaUniversity of Iowa Hospitals and Clinics, Iowa City Iowa United States of AmericaUniversity of Iowa Hospitals and Clinics, Iowa City Iowa United States of AmericaUniversity of Iowa Hospitals and Clinics, Iowa City Iowa United States of AmericaUniversity of Iowa Hospitals and Clinics, Iowa City Iowa United States of AmericaUniversity of Iowa Hospitals and Clinics, Iowa City Iowa United States of AmericaUniversity of Iowa Hospitals and Clinics, Iowa City Iowa United States of AmericaUniversity of Iowa Hospitals and Clinics, Iowa City Iowa United States of AmericaIntroduction: Chronic internal carotid occlusion is responsible for 10–15% ischemic strokes or transit ischemic attacks (TIA). Subsequent ipsilateral ischemic stroke rate is 5.9% per year. However, this risk can increase up to 23% in two years in a subgroup of patients with poor collaterals regardless of medical therapy with antiplatelet or anticoagulant agents. Prevention of subsequent stroke in patients with carotid artery occlusion remains a difficult challenge. Carotid artery stenting (CAS) has recently been considered in its management. However, there is ambiguity on its safety. We aim to evaluate the safety and feasibility of CAS and compared it with medical management. Methods: We performed a systematic review and meta‐analysis to compare long‐term outcome (stroke recurrence) of current carotid occlusion treatments (CAS vs medical therapy). Two independent reviewers performed the screening, data extraction, and quality assessment. A random effects model was used for analysis. Results: A total of 5720 studies were screened. Of these, 11 studies were included in our systematic review and meta‐analysis of proportions. The CAS group has lower proportions of recurrent strokes (5% vs 30%,) after 30 days than medical therapy alone. Additionally, the proportion of periprocedural intracranial hemorrhage was 4.4% (95% CI 2.5 to 6.8) in the CAS group. Conclusions: CAS of the chronically occluded cervical ICA seems to be a safe procedure with lower rates of recurrent stroke in clinical follow up. Future randomized studies are warranted to guide the optimal management of this complex disease.https://www.ahajournals.org/doi/10.1161/SVIN.01.suppl_1.000227Carotid Stenting And AngioplastyCarotidMedical Management
spellingShingle Cynthia Zevallos Mau
Cynthia B Zevallos
Milagros Galecio‐Castillo
Sameer Ansari
Julie Weng
Juan Vivanco‐Suarez
Andres Dajles
Darko Quispe‐Orozco
Alan Mendez‐Ruiz
Mudassir Farooqui
Santiago Ortega‐Gutierrez
Abstract 1122‐000227: Stenting Versus Medical Treatment for Chronic Internal Carotid Artery Occlusions: A Systematic Review and Meta‐analysis
Stroke: Vascular and Interventional Neurology
Carotid Stenting And Angioplasty
Carotid
Medical Management
title Abstract 1122‐000227: Stenting Versus Medical Treatment for Chronic Internal Carotid Artery Occlusions: A Systematic Review and Meta‐analysis
title_full Abstract 1122‐000227: Stenting Versus Medical Treatment for Chronic Internal Carotid Artery Occlusions: A Systematic Review and Meta‐analysis
title_fullStr Abstract 1122‐000227: Stenting Versus Medical Treatment for Chronic Internal Carotid Artery Occlusions: A Systematic Review and Meta‐analysis
title_full_unstemmed Abstract 1122‐000227: Stenting Versus Medical Treatment for Chronic Internal Carotid Artery Occlusions: A Systematic Review and Meta‐analysis
title_short Abstract 1122‐000227: Stenting Versus Medical Treatment for Chronic Internal Carotid Artery Occlusions: A Systematic Review and Meta‐analysis
title_sort abstract 1122 000227 stenting versus medical treatment for chronic internal carotid artery occlusions a systematic review and meta analysis
topic Carotid Stenting And Angioplasty
Carotid
Medical Management
url https://www.ahajournals.org/doi/10.1161/SVIN.01.suppl_1.000227
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