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Chinese Journal of Interventional Radiology(Electronic Edition) ›› 2025, Vol. 13 ›› Issue (04): 338-343. doi: 10.3877/cma.j.issn.2095-5782.2025.04.010

• Neural Intervention • Previous Articles     Next Articles

Predictive Factors for Successful Endovascular Recanalization in Symptomatic Non-acute Middle Cerebral Artery Occlusion

Hao Zhang1, Huaqiao Tan1, Shuo Yan2, Weixing Bai1, Yingqiang Zhang1, Dedi Wu1, Jiahang Du1, Zhiyong Lu1, Lin Ma1,()   

  1. 1 Department of Interventional Radiology, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong Province, 518107, China
    2 Department of Interventional Radiology, Tongji Hospital Affiliated Tongji University, Shanghai, 200065, China
  • Received:2025-03-17 Online:2025-11-25 Published:2026-01-01
  • Contact: Lin Ma

Abstract:

Objective

To identify predictive factors for successful endovascular recanalization in patients with symptomatic non-acute middle cerebral artery occlusion (SNMCAO) and provide a basis for selecting appropriate candidates for this treatment.

Methods

Clinical and imaging data of 47 SNMCAO patients who underwent endovascular recanalization at The Seventh Affiliated Hospital of Sun Yat-sen University and Tongji Hospital Affiliated Tongji University between January 2016 and October 2023 were retrospectively analyzed. Baseline characteristics, occlusion segment imaging features, perioperative outcomes, and 3-month follow-up results were collected. Binary Logistic regression analysis was used to determine independent predictors of recanalization success.

Results

Of the 47 patients, 35 (74.5%) were male, with a mean age of 60±11 years. The median occlusion duration was 14.5 days. Univariate analysis revealed significant differences between the success and failure groups in occlusion duration, occlusion segment length, stump morphology, and presence of slow distal antegrade flow (SDAF). Multivariate logistic regression analysis identified occlusion duration ≤ 3 months (OR=35.828, 95% CI: 1.153~1113.800, P=0.041), occlusion segment length < 10 mm (OR=29.814, 95% CI: 1.745~509.480, P=0.019), and presence of SDAF (OR=18.376, 95% CI: 1.213~278.496, P=0.036) as independent predictive factors for successful recanalization.

Conclusion

Occlusion duration of ≤ 3 months, occlusion segment length of < 10 mm, and the presence of SDAF are independent predictors of successful endovascular recanalization in SNMCAO patients. These factors may assist in selecting patients most likely to benefit from this intervention.

Key words: symptomatic non-acute middle cerebral artery occlusion, endovascular recanalization, predictive factors, slow distal antegrade flow

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