Application of intravascular ultrasound in percutaneous coronary intervention for coronary heart disease
Objective To analyze the application of intravenous ultrasound(IVUS)in percutaneous coronary intervention(PCI)for coronary heat disease.Methods A total of 86 patients with coronary heart disease who received PCI in the Second People's Hospital of Henan Province from July 2022 to May 2023 were selected and divided into study group and control group according to random number table method,with 43 cases in each group.The control group was given PCI treatment under coronary angiongraphy(CAG),and the study group was given PCI treatment under IVUS.The status of stent implantation(number of stents,diameter of balloon stent,maximal lumen diameter,maximal balloon pressure during dilatation,residual stenosis rate),cardiac function[left ventricular ejection fraction(LVEF),left ventricular end diastolic diameter(LVEDD),left ventricular end systolic diameter(LVESD)],vessel and plaque status[minimum vessel diameter(MID),plaque burden(PB),diameter stenosis rate(DS)],and adverse cardiovascular events were compared between the two groups.Results Compared with the control group,the balloon stent diameter,the maximum lumen diameter and the maximum balloon pressure during expansion were higher in the study group,and the residual stenosis rate was lower(P＜0.05).There were no significant differences in LVESD,LVEF and LVEDD levels between the study group and the control group before and after surgery(P＞0.05).Three months after operation,the study group had lower DS,PB and higher MID than the control group(P＜0.05).The incidence of adverse cardiovascular events in the study group was 6.98％(3/43),which was lower than that in the control group(37.21％,16/43,P＜0.05).Conclusions IVUS can obtain larger lumen diameter in PCI treatment of coronary heart disease,accurately guide balloon selection and interventional treatment process,reduce residual stenosis rate,improve cardiac function,vascular and plate conditions,and reduce the occurrence of adverse cardiovascular events.
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