Outcomes and CT Perfusion Thresholds of Mechanical Thrombectomy for Patients With Large Ischemic Core Lesions

ObjectiveTo explore the clinical prognosis and factors after mechanical thrombectomy (MT) in patients with large cerebral infarction assessed by computed tomographic perfusion (CTP)and the optimal threshold of cerebral blood flow (CBF) for estimating ischemic core.MethodsWe analyzed data from the an...

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Main Authors: Hongchao Yang, Dinglai Lin, Xiaohui Lin, Yanmin Wu, Tingyu Yi, Wenhuo Chen
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-06-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2022.856403/full
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author Hongchao Yang
Dinglai Lin
Xiaohui Lin
Yanmin Wu
Tingyu Yi
Wenhuo Chen
author_facet Hongchao Yang
Dinglai Lin
Xiaohui Lin
Yanmin Wu
Tingyu Yi
Wenhuo Chen
author_sort Hongchao Yang
collection DOAJ
description ObjectiveTo explore the clinical prognosis and factors after mechanical thrombectomy (MT) in patients with large cerebral infarction assessed by computed tomographic perfusion (CTP)and the optimal threshold of cerebral blood flow (CBF) for estimating ischemic core.MethodsWe analyzed data from the anterior circulation database of our hospital (August 2018–June 2021). Multivariate logistic regression analyses identified the predictors of clinical outcomes for patients with large baseline infarcts (>50 ml) assessed by the MIStar software. The receiver operating characteristic (ROC) analysis was used to explore the cutoff value of factors.ResultsThe present study included one hundred thirty-seven patients with large baseline infarcts. Moreover, 23 (16.8%) patients achieved functionally independent outcomes, and 50 (36.5%) patients died at 90 days. A total of 20 (14.7%) patients had symptomatic intracranial hemorrhage (sICH). The multivariable analysis showed that higher age and larger core volume were independent of poor outcomes. The cutoff value of core volume was 90 ml, and the age was 76 years. Hypertension and rt-PA treatment were independent factors of sICH. Higher age and larger ischemic volume were independent risk factors of mortality.ConclusionsMechanical thrombectomy can be applied in patients with large ischemic core volumes. Patients older than 76 years with large cores (>90 ml) are unlikely to benefit from MT. These findings may be helpful in selecting patients with large baseline infarcts to be treated by MT. The threshold of CBF < 30% is the independent factor, and this is worth evaluating in future studies to find the optimal threshold of CBF.
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spelling doaj.art-82d5c7d9ce27403a802f93ace8f70c782022-12-22T00:23:28ZengFrontiers Media S.A.Frontiers in Neurology1664-22952022-06-011310.3389/fneur.2022.856403856403Outcomes and CT Perfusion Thresholds of Mechanical Thrombectomy for Patients With Large Ischemic Core LesionsHongchao Yang0Dinglai Lin1Xiaohui Lin2Yanmin Wu3Tingyu Yi4Wenhuo Chen5Department of Neurosurgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, ChinaDepartment of Neurology, Zhangzhou Affiliated Hospital of Fujian Medical University, Fujian, ChinaDepartment of Neurology, Zhangzhou Affiliated Hospital of Fujian Medical University, Fujian, ChinaDepartment of Neurology, Zhangzhou Affiliated Hospital of Fujian Medical University, Fujian, ChinaDepartment of Neurology, Zhangzhou Affiliated Hospital of Fujian Medical University, Fujian, ChinaDepartment of Neurology, Zhangzhou Affiliated Hospital of Fujian Medical University, Fujian, ChinaObjectiveTo explore the clinical prognosis and factors after mechanical thrombectomy (MT) in patients with large cerebral infarction assessed by computed tomographic perfusion (CTP)and the optimal threshold of cerebral blood flow (CBF) for estimating ischemic core.MethodsWe analyzed data from the anterior circulation database of our hospital (August 2018–June 2021). Multivariate logistic regression analyses identified the predictors of clinical outcomes for patients with large baseline infarcts (>50 ml) assessed by the MIStar software. The receiver operating characteristic (ROC) analysis was used to explore the cutoff value of factors.ResultsThe present study included one hundred thirty-seven patients with large baseline infarcts. Moreover, 23 (16.8%) patients achieved functionally independent outcomes, and 50 (36.5%) patients died at 90 days. A total of 20 (14.7%) patients had symptomatic intracranial hemorrhage (sICH). The multivariable analysis showed that higher age and larger core volume were independent of poor outcomes. The cutoff value of core volume was 90 ml, and the age was 76 years. Hypertension and rt-PA treatment were independent factors of sICH. Higher age and larger ischemic volume were independent risk factors of mortality.ConclusionsMechanical thrombectomy can be applied in patients with large ischemic core volumes. Patients older than 76 years with large cores (>90 ml) are unlikely to benefit from MT. These findings may be helpful in selecting patients with large baseline infarcts to be treated by MT. The threshold of CBF < 30% is the independent factor, and this is worth evaluating in future studies to find the optimal threshold of CBF.https://www.frontiersin.org/articles/10.3389/fneur.2022.856403/fullacute ischemic strokemechanical thrombectomyCT perfusionlarge ischemic corecerebral blood flow
spellingShingle Hongchao Yang
Dinglai Lin
Xiaohui Lin
Yanmin Wu
Tingyu Yi
Wenhuo Chen
Outcomes and CT Perfusion Thresholds of Mechanical Thrombectomy for Patients With Large Ischemic Core Lesions
Frontiers in Neurology
acute ischemic stroke
mechanical thrombectomy
CT perfusion
large ischemic core
cerebral blood flow
title Outcomes and CT Perfusion Thresholds of Mechanical Thrombectomy for Patients With Large Ischemic Core Lesions
title_full Outcomes and CT Perfusion Thresholds of Mechanical Thrombectomy for Patients With Large Ischemic Core Lesions
title_fullStr Outcomes and CT Perfusion Thresholds of Mechanical Thrombectomy for Patients With Large Ischemic Core Lesions
title_full_unstemmed Outcomes and CT Perfusion Thresholds of Mechanical Thrombectomy for Patients With Large Ischemic Core Lesions
title_short Outcomes and CT Perfusion Thresholds of Mechanical Thrombectomy for Patients With Large Ischemic Core Lesions
title_sort outcomes and ct perfusion thresholds of mechanical thrombectomy for patients with large ischemic core lesions
topic acute ischemic stroke
mechanical thrombectomy
CT perfusion
large ischemic core
cerebral blood flow
url https://www.frontiersin.org/articles/10.3389/fneur.2022.856403/full
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