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Differences in Safety and Efficacy of Endovascular Treatment for Acute Ischemic Stroke

A Propensity Score Analysis of Intracranial Atherosclerosis-Related Occlusion versus Embolism

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Abstract

Purpose

The prognosis after endovascular treatment (EVT) of acute arterial occlusions due to intracranial atherosclerotic disease (ICAD) may differ from those due to embolism. The aim was to evaluate whether safety and efficacy of EVT differ among patients with middle cerebral artery (MCA) M1 occlusion from ICAD or embolism.

Methods

A database review was conducted to identify EVT patients with acute MCA M1 occlusion from November 2013 to December 2018.The patients were divided into the ICAD group and embolic group according to the etiology of occlusion. Using propensity score analysis, patients with ICAD-related occlusion and embolism underwent 1:1 matching. Angiographic results, complications, and clinical outcomes were compared.

Results

A total of 217 patients (ICAD: 51; embolism: 166) were identified. After propensity score matching, 45 patients with ICAD-related occlusion and 45 with embolism were matched. All baseline covariates except atrial fibrillation were statistically indistinguishable. The rate of successful reperfusion (modified Thrombolysis in Cerebral Infarction [mTICI] 2b–3) was similar between the two groups, while the rate of mTICI 3 in the ICAD group was higher. No statistical difference was observed in the rate of postprocedural intracranial hemorrhage. The rate of favorable outcome (modified Rankin Scale [mRS] ≤2) and mortality at 90 days was comparable.

Conclusion

This propensity score analysis demonstrated that the EVT patients with acute ICAD-related MCA M1 occlusion had similar angiographic and clinical outcomes compared to those with M1 embolism on a similar baseline condition.

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Abbreviations

AIS:

Acute ischemic stroke

ASPECT:

Alberta Stroke Program Early Computed Tomography

CT:

Computed tomography

CTA:

Computed tomography angiography

DSA:

Digital subtraction angiography

EVT:

Endovascular treatment

ICAD:

Intracranial atherosclerotic disease

ICH:

Intracranial hemorrhage

MCA:

Middle cerebral artery

mRS:

Modified Rankin scale

mTICI:

Modified thrombolysis in cerebral infarction

NIHSS:

National Institutes of Health Stroke Scale

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Funding

The authors state that this work has received funding from Shanghai health system excellent talents training program (No. 2017YQ034), Shanghai pujiang talent program (No. 16PJD003) and Shanghai pudong new area special disease construction project (No. PWZ2b2017-09).

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Correspondence to Pengfei Yang or Jianmin Liu.

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Conflict of interest

W. Yang, Y. Zhang, Z. Li, L. Zhang, H. Li, W. Hua, H. Zhang, M. Feng, H. Shen, P. Xing, Q. Chen, Y. Zhang, P. Yang and J. Liu declare that we have no financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Wenjin Yang and Yongxin Zhang contributed equally to this work.

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Yang, W., Zhang, Y., Li, Z. et al. Differences in Safety and Efficacy of Endovascular Treatment for Acute Ischemic Stroke. Clin Neuroradiol 31, 457–464 (2021). https://doi.org/10.1007/s00062-020-00899-x

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  • DOI: https://doi.org/10.1007/s00062-020-00899-x

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