Incremental clinical value of intraplaque neovascularization in predicting recurrent ischemic stroke

Abstract Objective Carotid intraplaque neovascularization (IPN) detected by contrast‐enhanced ultrasound (CEUS) is a risk factor for recurrent ischemic stroke. However, it is still unclear whether IPN can be used to accurately identify patients with recurrent ischemic stroke in clinical practice. He...

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Main Authors: Liuping Cui, Ran Liu, Fubo Zhou, Bing Tian, Ying Chen, Yingqi Xing
Format: Article
Language:English
Published: Wiley 2025-02-01
Series:Annals of Clinical and Translational Neurology
Online Access:https://doi.org/10.1002/acn3.52255
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author Liuping Cui
Ran Liu
Fubo Zhou
Bing Tian
Ying Chen
Yingqi Xing
author_facet Liuping Cui
Ran Liu
Fubo Zhou
Bing Tian
Ying Chen
Yingqi Xing
author_sort Liuping Cui
collection DOAJ
description Abstract Objective Carotid intraplaque neovascularization (IPN) detected by contrast‐enhanced ultrasound (CEUS) is a risk factor for recurrent ischemic stroke. However, it is still unclear whether IPN can be used to accurately identify patients with recurrent ischemic stroke in clinical practice. Herein, we investigated the clinical predictive value of IPN for recurrent ischemic stroke in a real‐world setting. Methods We enrolled 200 patients with ischemic stroke and atherosclerotic carotid stenosis who were followed up for 2 years. The endpoint was recurrent ischemic stroke. Cox regression and subgroup analyses were employed to assess whether treatment affected the relationship between IPN and recurrent ischemic stroke. The net classification index (NRI) and integrated discriminant improvement index (IDI) were used to validate the additional clinical value of IPN in identifying recurrent ischemic stroke. Results During the 2‐year follow‐up, 36 patients experienced recurrent ischemic stroke. Cox regression analyses showed that IPN (grade 2), hypoechoic plaque, high homocysteine levels, and smoking were independent risk factors for recurrent ischemic stroke. Additional IPN evaluation may increase the NRI (0.512; 95% confidence interval [CI]: 0.083–0.624) and IDI (0.151; 95% CI: 0.010–0.213) for identifying high‐risk patients with recurrent ischemic stroke. In addition, in the subgroup undergoing revascularization, the proportion of IPN (grade 2) was significantly higher in patients with recurrent ischemic stroke than in patients with nonrecurrent ischemic stroke (p = 0.001). Interpretation In clinical settings, IPN, assessed by CEUS, may provide additional clinical value for predicting recurrent ischemic stroke, helping to identify patients with ischemic stroke who require close follow‐up.
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spelling doaj-art-afdd894ceabe4669a9c4c2f1c0729a4e2025-08-20T02:28:00ZengWileyAnnals of Clinical and Translational Neurology2328-95032025-02-0112229129910.1002/acn3.52255Incremental clinical value of intraplaque neovascularization in predicting recurrent ischemic strokeLiuping Cui0Ran Liu1Fubo Zhou2Bing Tian3Ying Chen4Yingqi Xing5Department of Vascular Ultrasound, Xuanwu Hospital Capital Medical University Beijing ChinaDepartment of Vascular Ultrasound, Xuanwu Hospital Capital Medical University Beijing ChinaDepartment of Vascular Ultrasound, Xuanwu Hospital Capital Medical University Beijing ChinaDepartment of Vascular Ultrasound, Xuanwu Hospital Capital Medical University Beijing ChinaDepartment of Neurology The First Hospital of Jilin University Changchun ChinaDepartment of Vascular Ultrasound, Xuanwu Hospital Capital Medical University Beijing ChinaAbstract Objective Carotid intraplaque neovascularization (IPN) detected by contrast‐enhanced ultrasound (CEUS) is a risk factor for recurrent ischemic stroke. However, it is still unclear whether IPN can be used to accurately identify patients with recurrent ischemic stroke in clinical practice. Herein, we investigated the clinical predictive value of IPN for recurrent ischemic stroke in a real‐world setting. Methods We enrolled 200 patients with ischemic stroke and atherosclerotic carotid stenosis who were followed up for 2 years. The endpoint was recurrent ischemic stroke. Cox regression and subgroup analyses were employed to assess whether treatment affected the relationship between IPN and recurrent ischemic stroke. The net classification index (NRI) and integrated discriminant improvement index (IDI) were used to validate the additional clinical value of IPN in identifying recurrent ischemic stroke. Results During the 2‐year follow‐up, 36 patients experienced recurrent ischemic stroke. Cox regression analyses showed that IPN (grade 2), hypoechoic plaque, high homocysteine levels, and smoking were independent risk factors for recurrent ischemic stroke. Additional IPN evaluation may increase the NRI (0.512; 95% confidence interval [CI]: 0.083–0.624) and IDI (0.151; 95% CI: 0.010–0.213) for identifying high‐risk patients with recurrent ischemic stroke. In addition, in the subgroup undergoing revascularization, the proportion of IPN (grade 2) was significantly higher in patients with recurrent ischemic stroke than in patients with nonrecurrent ischemic stroke (p = 0.001). Interpretation In clinical settings, IPN, assessed by CEUS, may provide additional clinical value for predicting recurrent ischemic stroke, helping to identify patients with ischemic stroke who require close follow‐up.https://doi.org/10.1002/acn3.52255
spellingShingle Liuping Cui
Ran Liu
Fubo Zhou
Bing Tian
Ying Chen
Yingqi Xing
Incremental clinical value of intraplaque neovascularization in predicting recurrent ischemic stroke
Annals of Clinical and Translational Neurology
title Incremental clinical value of intraplaque neovascularization in predicting recurrent ischemic stroke
title_full Incremental clinical value of intraplaque neovascularization in predicting recurrent ischemic stroke
title_fullStr Incremental clinical value of intraplaque neovascularization in predicting recurrent ischemic stroke
title_full_unstemmed Incremental clinical value of intraplaque neovascularization in predicting recurrent ischemic stroke
title_short Incremental clinical value of intraplaque neovascularization in predicting recurrent ischemic stroke
title_sort incremental clinical value of intraplaque neovascularization in predicting recurrent ischemic stroke
url https://doi.org/10.1002/acn3.52255
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