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Current Neurovascular Research

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ISSN (Print): 1567-2026
ISSN (Online): 1875-5739

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Research Article

Prevalence and Prognostic Factors of Cortical Laminar Necrosis in Acute Ischemic Stroke

Author(s): Zhi-li Wang, Wei Qin, Yuelei Lyu and Wenli Hu*

Volume 20, Issue 2, 2023

Published on: 31 May, 2023

Page: [183 - 189] Pages: 7

DOI: 10.2174/1567202620666230515152331

Price: $65

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Abstract

Background: Cortical laminar necrosis (CLN) is a specific type of cortical infarction, and little is known about its frequency and outcomes. We aimed to investigate the prevalence and outcomes of CLN caused by brain infarction and its prognostic factors.

Methods: This retrospective cohort study included patients with acute ischemic stroke (AIS) between 2019 and 2022 and for whom magnetic resonance images obtained at our center showed acute-stage CLN. Their medical records were collected and analyzed. An unfavorable outcome was defined as a modified Rankin Scale score of 3-6 at 90 days. Logistic regression was performed to identify independent predictors of an unfavorable outcome.

Results: Among 5548 consecutive patients with AIS, 151 patients (2.7%) were diagnosed with CLN, and 112 had CLN enrolled in the final analysis. At 90 days, 25 patients (22.3%) had an unfavorable outcome. Compared with the favorable group, poor outcome patients had higher rates of previous stroke (p = 0.012), higher National Institutes of Health Stroke Scale (NIHSS) scores at admission (p < 0.001), and were more likely to have early neurologic deterioration (END) (p = 0.014), diffuse ischemic lesions (p = 0.011), and lesions involving multiple lobes (p = 0.030). In multivariable analysis, the initial NIHSS score (OR, 1.258, (95% CI 1.090 - 1.453), p = 0.002) and END (OR, 5.695, [95% CI 1.410 - 23.007], p = 0.015) were independently associated with unfavorable outcome.

Conclusion: CLN is a rare ischemic event but has a good prognosis in most cases. A higher initial NIHSS score and END may predict an unfavorable outcome.

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