Value of preoperative ultrasonography in predicting the effect of carotid artery dilation after stenting
10.3969/j.issn.1009-0126.2018.05.004
- VernacularTitle:超声预测支架置入术后颈动脉扩张效果的价值
- Author:
Shengjiang CHEN
1
;
Xiaofeng YANG
;
Xiaoyan WU
;
Jing NIU
;
Yi ZHANG
;
Jing XUE
;
Zhoulong ZHANG
;
Mei CHEN
Author Information
1. 河南科技大学临床医学院 河南科技大学第一附属医院超声科
- Keywords:
stroke;
carotid stenosis;
stents;
ultrasonography
- From:
Chinese Journal of Geriatric Heart Brain and Vessel Diseases
2018;20(5):462-465
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the value of preoperative ultrasonography in predicting the im provement rate of CAS in ischemic stroke (IS) patients after stenting.Methods Sixty-four CAS patients were included in this study.Their baseline clinical data,improvement rate of CAS 1 year after stenting and Pearson matrix correlation coefficient of 12 carotid ultrasonographic indexes were retrospcctively analyzed before stenting.An ultrasonographic prediction model of CAS im provement rate was established after stenting.Results No patient died 1 year after stenting.Pearson correlation analysis showed that the improvement rate of CAS was closely related with the clinical outcome of CAS patients 1 year after stenting (P＜0.01).The integration ratios of unstable plaques,maximum plaque eccentricity,maximum plaque length,maximum plaque thickness,peak systolic flow rate in stenotic carotid artery,resistance index and carotid artery stiffness index were negatively related with the improvement rate of CAS after stcnting (P＜0.01).However,the pulsation index,dilation and compliance coefficient were positively related with the improvement rate of CAS after stenting (r=0.363,P=0.003;r=0.331,P=0.008;r=0.306,P=0.014).Stepwise regression analysis showed that carotid artery stiffness index,peak systolic flow rate in stenotic carotid artery and maximum plaque thickness were related with the improvement rate of CAS in a linear manner after stenting (P＜0.01).Conclusion Ultrasonographic indexes play an active role in assessing the improvement rate of CAS 1 years after stenting.
