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Chinese Journal of Cerebrovascular Diseases(Electronic Edition) ›› 2026, Vol. 20 ›› Issue (04): 380-388. doi: 10.3877/cma.j.issn.1673-9248.2026.04.005

• Clinical Research • Previous Articles    

Comparative diagnostic and predictive performance of different scoring scales for identifying anterior circulation large vessel occlusion stroke

Chenming Wei, Jingyu Mu, Xinyi Zhao, Le Chen, Jian Wu()   

  1. Department of Neurology, Beijing Tsinghua Changgung Hospital, Beijing 102218, China
  • Received:2026-04-28 Online:2026-08-01 Published:2026-09-08
  • Contact: Jian Wu

Abstract:

Objective

To compare the diagnostic and predictive performance of different clinical scales for anterior circulation large vessel occlusion (LVO) stroke.

Methods

Patients with acute ischemic stroke admitted to Beijing Tsinghua Changgung Hospital between March 2021 and January 2024 within 24 hours of onset were prospectively enrolled. Clinical data and neurological function scores were collected, including the National Institutes of Health stroke scale (NIHSS), field assessment stroke triage for emergency destination (FAST-ED), rapid arterial occlusion evaluation (RACE), Cincinnati prehospital stroke severity scale (CPSSS), and emergency medical stroke assessment (EMSA). All patients underwent vascular imaging and were categorized based on infarct lesions and occluded vessels. The diagnostic and predictive performance of each scale for detecting new-onset LVO stroke, especially anterior circulation LVO stroke, was analyzed using receiver operating characteristic (ROC) curves.

Results

A total of 735 patients were enrolled, including 167 with new-onset LVO and 568 with non-LVO strokes. Among new-onset LVO stroke patients, 137 had anterior circulation LVO and 30 had posterior circulation LVO. For new-onset LVO stroke, the areas under the ROC curve (AUC) of FAST-ED, RACE, CPSSS, and EMSA were 0.821, 0.795, 0.778, and 0.776, respectively. For anterior circulation LVO stroke, the corresponding AUCs were 0.844, 0.836, 0.806, and 0.806, respectively. FAST-ED and RACE showed superior predictive performance for anterior circulation LVO stroke compared with CPSSS and EMSA. A FAST-ED score ≥2 yielded optimal diagnostic performance for anterior circulation LVO stroke, with a specificity of 81.4% and a sensitivity of 80.3%. A RACE score ≥3 also showed favorable performance, with a specificity of 85.5% and a sensitivity of 70.3%.

Conclusion

FAST-ED and RACE can accurately identify new-onset anterior circulation LVO stroke, which is helpful for the early prehospital triage of anterior circulation LVO stroke patients.

Key words: Acute ischemic stroke, Large vessel occlusion, Diagnostic prediction, Scales

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