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Chinese Journal of Interventional Radiology(Electronic Edition) ›› 2022, Vol. 10 ›› Issue (01): 22-26. doi: 10.3877/cma.j.issn.2095-5782.2022.01.004

• Neural Intervention • Previous Articles     Next Articles

Predictors of poor outcome despite complete reperfusion after mechanical thrombectomy of posterior circulation acute ischemic stroke

Zhengwen Chen1, Peicheng Li1,(), Long Chen1, Yizhi Liu1, Bo Li1, Chen Yuan1, Kaiwen Hou1   

  1. 1. Department of Interventional Radiolody, the First Affliiated Hospital of Soochow University, Jiangsu Suzhou 215006, China
  • Received:2021-07-15 Online:2022-02-25 Published:2022-03-23
  • Contact: Peicheng Li

Abstract:

Objective

To investigate the poor prognostic factors of posterior circulation stroke (PCS) after complete reperfusion by mechanical thrombectomy.

Methods

39 patients with PCS treated with mechanical thrombectomy (MT) from January 2017 to September 2020 were included and retrospectively analyzed. Complete reperfusion in occlusive vessels was defined as modified thrombolysis in cerebral infarction (mTICI) grade 3. 90 d modified Rankin score (mRS) > 2 was defined as a poor outcome. The baseline data and treatment-related indicators were included in the multivariate analysis, and the receiver operating characteristic (ROC) curve was used to determine the best cut-off value.

Results

39 patients with complete reperfusion (mTICI 3) were included in this study. Poor outcome was observed in 20 (51.3%) of these patients. Stepwise Logistic regression analysis showed that lower NIHSS score (OR = 1.21, 95%CI = 1.037-1.414, P = 0.016) and posterior communicating artery (PcomA) patency (OR = 0.052, 95%CI = 0.005-0.557, P = 0.014) were independent predictors of favourable 90 d outcome. Based on the analysis of ROC curve, the area under the curve of NIHSS score at admission was 0.762, cut-off value was 20, sensitivity was 70.0%, specificity was 84.2%.

Conclusions

High NIHSS score and PcomA occlusion at admission are poor prognostic factors of PCS treated with mechanical thrombectomy after complete reperfusion.

Key words: Ischemic stroke, Posterior circulation, Mechanical thrombectomy, Prognosis

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