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Association between Low-Density Lipoprotein Cholesterol Levels and Proximal Single Subcortical Infarction in Comparison with Distal Single Subcortical Infarction
Journal of Stroke & Cerebrovascular Diseases ( IF 1.787 ) Pub Date : 2020-08-04 , DOI: 10.1016/j.jstrokecerebrovasdis.2020.105198
Hefei Tang; Yu Wang; Aichun Cheng; Anxin Wang; Jie Xu; Changqing Zhang; Xingquan Zhao; Yongjun Wang

Purpose

Single subcortical infarction (SSI) in the middle cerebral artery (MCA) territory can be classified into proximal SSI (pSSI) and distal SSI (dSSI) based on the heterogeneous pathogenesis. It is hypothesized that pSSI is more relevant with atherosclerosis, as low-density lipoprotein cholesterol (LDL-C) is the major atherogenic lipoprotein, we conducted the present study to investigate the association between LDL-C levels and pSSI in comparison with dSSI.

Patients and methods

This study is a subset of the Chinese Intracranial Atherosclerosis study. A total of 380 with SSI in the MCA territory classified as small artery occlusion stroke were enrolled in this study. 3.0-T magnetic resonance imaging (MRI) was performed to categorize the participants into two groups, pSSI (extending to the basal surface of MCA) and dSSI (not extending to the basal surface of MCA).

Results

Out of the 380 enrolled participants (273 men and 107 women), the proportion of pSSI and dSSI were 53.2% (202/380) versus 46.8% (178/380) based on MRI. The results of univariate and multivariate logistic regression were both at the borderline level of statistical significance. Further stratified analyses revealed that age is an interaction factor (P = 0.03), the association between LDL-C levels and the pSSI in participants aged over 65 had a significant positive relation (OR: 1.56; 95%CI: 1.14-2.12).

Conclusion

LDL-C level is an independent risk factor for pSSI in patients aged over 65. Our result is in accordance with the hypothesis that pSSI is more relevant with atherosclerosis, thus appropriate treatment should be applied differently to pSSI and dSSI.

更新日期:2020-08-04

 

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