Bridging Thrombolysis and ASPECTS in Patients With Stroke Treated With Endovascular Thrombectomy

Background In patients with stroke with large‐vessel occlusion and extensive ischemic change denoted by low Alberta Stroke Programme Early Computed Tomography Score (ASPECTS), the role of bridging thrombolysis before endovascular thrombectomy (EVT) is still to be determined. We aimed to examine the...

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Main Authors: Joseph Donnelly, Jae Beom Hong, Vivien T.Y. Yong, William K. Diprose, James R. Caldwell, Shane S. Lee, Ben J. McGuinness, Stefan Brew, Peter Alan Barber
Format: Article
Language:English
Published: Wiley 2023-05-01
Series:Stroke: Vascular and Interventional Neurology
Subjects:
Online Access:https://www.ahajournals.org/doi/10.1161/SVIN.122.000665
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author Joseph Donnelly
Jae Beom Hong
Vivien T.Y. Yong
William K. Diprose
James R. Caldwell
Shane S. Lee
Ben J. McGuinness
Stefan Brew
Peter Alan Barber
author_facet Joseph Donnelly
Jae Beom Hong
Vivien T.Y. Yong
William K. Diprose
James R. Caldwell
Shane S. Lee
Ben J. McGuinness
Stefan Brew
Peter Alan Barber
author_sort Joseph Donnelly
collection DOAJ
description Background In patients with stroke with large‐vessel occlusion and extensive ischemic change denoted by low Alberta Stroke Programme Early Computed Tomography Score (ASPECTS), the role of bridging thrombolysis before endovascular thrombectomy (EVT) is still to be determined. We aimed to examine the impact of ischemic change on clinical outcomes and how this is modified by bridging thrombolysis in patients treated with EVT. Methods Consecutive patients undergoing anterior circulation EVT from a prospectively collected registry were included in this retrospective analysis. ASPECTS was evaluated from baseline noncontrast computed tomography scans with lower scores indicating larger areas of ischemic change. Outcome measures included symptomatic intracranial hemorrhage and functional independence (modified Rankin Scale score, 0–2) at day 90. Multivariable logistic regression models with interaction terms between ASPECTS and bridging thrombolysis were created. ASPECTS was treated as numeric variable in the primary analysis and trichotomized (ASPECTS ≤5, 6–8, 9–10) in a sensitivity analysis. Results A total of 872 patients undergoing EVT (384 women, mean±SD age of 67±15, baseline National Institute of Health Stroke Scale 16 [interquartile range, 11–20]) were included. A total of 549 (63%) patients were transferred from primary stroke centers for EVT and 436 (50%) received bridging intravenous thrombolysis with alteplase. On baseline computed tomography scan, median [interquartile range] ASPECTS was 8 [7–9], with 408 (47%) having minimal (ASPECTS 9–10), 376 (43%) moderate (ASPECTS 6–8), and 88 (10%) extensive (ASPECTS ≤5) ischemic change. With decreasing numeric ASPECTS, the probability of functional independence reduced (ASPECTS main effect adjusted odds ratio, 1.36 [95% CI, 1.23–1.52]; P<0.001), but this was attenuated in those with bridging thrombolysis (interaction P=0.046). This interaction was significant for patients transferred to the EVT center after thrombolysis (interaction P=0.03) but not for patients presenting directly to the EVT center (interaction P=0.46). The interaction between ASPECTS and bridging thrombolysis was not significant when ASPECTS was split into the 3 categories (P=0.35). Conclusion In a cohort of patients undergoing EVT where most were transferred from a primary stroke center, ischemic change was associated with decreased probability functional independence, but this effect was attenuated with bridging thrombolysis. These results suggest that patients with large areas of ischemic change may still benefit from the earliest possible reperfusion afforded by bridging thrombolysis.
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spelling doaj.art-450f790fd11f477a8f606db18c67386d2023-05-02T18:30:22ZengWileyStroke: Vascular and Interventional Neurology2694-57462023-05-013310.1161/SVIN.122.000665Bridging Thrombolysis and ASPECTS in Patients With Stroke Treated With Endovascular ThrombectomyJoseph Donnelly0Jae Beom Hong1Vivien T.Y. Yong2William K. Diprose3James R. Caldwell4Shane S. Lee5Ben J. McGuinness6Stefan Brew7Peter Alan Barber8Department of Medicine University of Auckland Auckland New ZealandDepartment of Neurology Auckland City Hospital Auckland New ZealandDepartment of Medicine University of Auckland Auckland New ZealandDepartment of Neurology Royal North Shore Hospital Sydney AustraliaDepartment of Neuroradiology Auckland City Hospital Auckland New ZealandDepartment of Neuroradiology Auckland City Hospital Auckland New ZealandDepartment of Neuroradiology Auckland City Hospital Auckland New ZealandDepartment of Neuroradiology Auckland City Hospital Auckland New ZealandDepartment of Medicine University of Auckland Auckland New ZealandBackground In patients with stroke with large‐vessel occlusion and extensive ischemic change denoted by low Alberta Stroke Programme Early Computed Tomography Score (ASPECTS), the role of bridging thrombolysis before endovascular thrombectomy (EVT) is still to be determined. We aimed to examine the impact of ischemic change on clinical outcomes and how this is modified by bridging thrombolysis in patients treated with EVT. Methods Consecutive patients undergoing anterior circulation EVT from a prospectively collected registry were included in this retrospective analysis. ASPECTS was evaluated from baseline noncontrast computed tomography scans with lower scores indicating larger areas of ischemic change. Outcome measures included symptomatic intracranial hemorrhage and functional independence (modified Rankin Scale score, 0–2) at day 90. Multivariable logistic regression models with interaction terms between ASPECTS and bridging thrombolysis were created. ASPECTS was treated as numeric variable in the primary analysis and trichotomized (ASPECTS ≤5, 6–8, 9–10) in a sensitivity analysis. Results A total of 872 patients undergoing EVT (384 women, mean±SD age of 67±15, baseline National Institute of Health Stroke Scale 16 [interquartile range, 11–20]) were included. A total of 549 (63%) patients were transferred from primary stroke centers for EVT and 436 (50%) received bridging intravenous thrombolysis with alteplase. On baseline computed tomography scan, median [interquartile range] ASPECTS was 8 [7–9], with 408 (47%) having minimal (ASPECTS 9–10), 376 (43%) moderate (ASPECTS 6–8), and 88 (10%) extensive (ASPECTS ≤5) ischemic change. With decreasing numeric ASPECTS, the probability of functional independence reduced (ASPECTS main effect adjusted odds ratio, 1.36 [95% CI, 1.23–1.52]; P<0.001), but this was attenuated in those with bridging thrombolysis (interaction P=0.046). This interaction was significant for patients transferred to the EVT center after thrombolysis (interaction P=0.03) but not for patients presenting directly to the EVT center (interaction P=0.46). The interaction between ASPECTS and bridging thrombolysis was not significant when ASPECTS was split into the 3 categories (P=0.35). Conclusion In a cohort of patients undergoing EVT where most were transferred from a primary stroke center, ischemic change was associated with decreased probability functional independence, but this effect was attenuated with bridging thrombolysis. These results suggest that patients with large areas of ischemic change may still benefit from the earliest possible reperfusion afforded by bridging thrombolysis.https://www.ahajournals.org/doi/10.1161/SVIN.122.000665ischemiaoutcomeregistrystrokethrombectomythrombolysis
spellingShingle Joseph Donnelly
Jae Beom Hong
Vivien T.Y. Yong
William K. Diprose
James R. Caldwell
Shane S. Lee
Ben J. McGuinness
Stefan Brew
Peter Alan Barber
Bridging Thrombolysis and ASPECTS in Patients With Stroke Treated With Endovascular Thrombectomy
Stroke: Vascular and Interventional Neurology
ischemia
outcome
registry
stroke
thrombectomy
thrombolysis
title Bridging Thrombolysis and ASPECTS in Patients With Stroke Treated With Endovascular Thrombectomy
title_full Bridging Thrombolysis and ASPECTS in Patients With Stroke Treated With Endovascular Thrombectomy
title_fullStr Bridging Thrombolysis and ASPECTS in Patients With Stroke Treated With Endovascular Thrombectomy
title_full_unstemmed Bridging Thrombolysis and ASPECTS in Patients With Stroke Treated With Endovascular Thrombectomy
title_short Bridging Thrombolysis and ASPECTS in Patients With Stroke Treated With Endovascular Thrombectomy
title_sort bridging thrombolysis and aspects in patients with stroke treated with endovascular thrombectomy
topic ischemia
outcome
registry
stroke
thrombectomy
thrombolysis
url https://www.ahajournals.org/doi/10.1161/SVIN.122.000665
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