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Published in: Neuroradiology 4/2022

01-04-2022 | Stroke | Interventional Neuroradiology

Artery diameter ratio after recanalization in endovascular therapy for acute ischemic stroke: a new predictor of clinical outcomes

Authors: Shuhan Huang, Chengchun Liu, Xiaoshu Li, Ya Wu, Chunrong Liang, Wei Li, Meng Zhang

Published in: Neuroradiology | Issue 4/2022

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Abstract

Purpose

This study aimed to investigate the relationship between the artery diameter ratio (ADR) after recanalization and clinical outcomes.

Methods

Patients with middle cerebral artery occlusion confirmed by DSA from 1 January 2018, to 31 December 2019, were retrospectively analyzed. All patients confirmed TICI grade 2b or 3. The ADR was calculated as M2 segment diameter/M1 segment diameter. Multivariate regression analysis was used to describe clinical outcomes of two groups (ADR < 0.6 and ≥ 0.6). ROC curves were used to compare different models and find the best cutoff.

Results

A total of 143 patients were included in the study, including 77 males and 66 females, with an average age of 67.79 ± 12 years. The NIHSS at discharge was significantly higher in the ADR < 0.6 group than another group (mean, 16.37 vs. 6.19, P < 0.001). At 90 days, the cases of functional independence was significantly less in the ADR < 0.6 group (20.97% vs. 83.95%, OR 0.05, 95% CI 0.02–0.12, P < 0.001). The ADR < 0.6 group had a higher incidence of cerebral edema (P = 0.027) and sICH (P = 0.038). The ADR had the strongest power to distinguish mRS > 2 (AUC = 0.851) and DC (AUC = 0.805), and the best cutoff value are 0.6 (specificity 85.19%, sensitivity 75.81%) and 0.58 (specificity 65.96%, sensitivity 100%), respectively.

Conclusion

The low ADR is associated with poor outcomes. The decrease in ADR may be an indirect manifestation of the loss of cerebrovascular autoregulation.
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Metadata
Title
Artery diameter ratio after recanalization in endovascular therapy for acute ischemic stroke: a new predictor of clinical outcomes
Authors
Shuhan Huang
Chengchun Liu
Xiaoshu Li
Ya Wu
Chunrong Liang
Wei Li
Meng Zhang
Publication date
01-04-2022
Publisher
Springer Berlin Heidelberg
Published in
Neuroradiology / Issue 4/2022
Print ISSN: 0028-3940
Electronic ISSN: 1432-1920
DOI
https://doi.org/10.1007/s00234-021-02841-5

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