Application value of coronary intravascular ultrasonography in coronary heart disease and intracoronary stent implantation
Li Songsen
Niu Xiaohua
Zhang Shouyan
Abstract：Objective To discuss the application value of coronary intravascular ultrasonography (IVUS) in coronary artery lesions of coronary heart disease (CHD) and intracoronary stent implantation. Methods CHD patients (n=68) were chosen from the Luoyang Central Hospital affiliated to Zhengzhou University from May 2016 to Mar. 2017, and divided randomly into observation group and control group (each n=34). Both groups were given IVUS examination, meanwhile control group was undergone intracoronary stent implantation guided by coronary angiography (CAG) and observation group, guided by IVUS. The changes of IVUS features, minimal lumen diameter (MLD) of most stenosis part of diseases vascular before and after treatment, plaque burden, rate of diameter stenosis (DS), stent placement rate and compliance rate were analyzed in 2 groups. The incidence of cardiovascular events was followed up and compared in 2 groups after 1 y. Results The results of IVUS showed that, among 68 patients, the patients with severity of coronary artery stenosis>70% accounted for 11.76% and those with smallest lumen area<4 mm2 accounted for 50.00%. MLD increased, and plaque burden and DS decreased in 2 groups after treatment. MLD was higher and plaque burden and DS were lower in observation group than those in control group (P<0.05). The stent placement rate was 94.12% and compliance rate was 88.24% in observation group, which were all higher than those in control group (70.59%, 64.71%, P<0.05). The incidence of cardiovascular events was lower in observation group (11.76%) than that in control group (20.58%, P>0.05). Conclusion IVUS can effectively detects CHD coronary lesion features, with which assistance, intracoronary stent implantation will have significant effect, and vascular diameter is increased, plaque burden is decreased, stent placement rate and compliance rate are improved, and risk of adverse cardiovascular events is reduced. It is worth to be popularized.
Keywords：Coronary intravascular ultrasonographyCoronary artery lesions of coronary heart diseaseIntracoronary stent implantationApplication value
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 170-172,178 )