Effects of intravascular ultrasound-guided percutaneous coronary intervention in treatment of patients with coronary heart disease
Objective:To investigate effects of intravascular ultrasound(IVUS)-guided percutaneous coronary intervention(PCI)in treatment of patients with coronary heart disease.Methods:The clinical data of 86 patients with coronary heart disease who underwent PCI in this hospital from September 2020 to September 2021 were retrospectively analyzed.According to the different auxiliary examination techniques during PCI,they were divided into observation group(45 cases)and control group(41 cases).The control group was treated with conventional coronary angiography(CAG)-guided PCI,while the observation group was treated with IVUS-guided PCI on the basis of that of the control group.The effects of stent implantation,the cardiac function indexes levels before and after the surgery[stroke volume(SV),left ventricular ejection fraction(LVEF),ratio of early diastolic peak velocity to late diastolic peak velocity(E/A)],the late lumen loss,the incidence of in-stent restenosis,the incidence of postoperative complications,and the incidence of major adverse cardiovascular events(MACE)were compared between the two groups.Results:The qualified rate of stent implantation in the observation group was 100.00%(45/45),which was higher than 85.37%(35/41)in the control group;the stent diameter and the stent length were larger than those in the control group;and the differences were statistically significant(P<0.05).3 months after the surgery,the levels of SV,LVEF and E/A in the two groups were higher than those before the surgery,those in the observation group were higher than those in the control group,and the differences were statistically significant(P<0.05).1 year after the surgery,the late lumen loss in the observation group was less than that in the control group,the incidence of in-stent restenosis was lower than that in the control group,and the differences were statistically significant(P<0.05).There was no significant difference in the incidence of early postoperative complications between the two groups(P>0.05).Within 1 year after the surgery,the incidence of MACE in the observation group was 4.44%(2/45),which was lower than 21.95%(9/41)in the control group,and the difference was statistically significant(P<0.05).Conclusions:IVUS-guided PCI for the patients with coronary heart disease can improve the effects of stent implantation,improve the cardiac function,reduce the late lumen loss,and reduce the incidence of in-stent restenosis and MACE,without increasing the incidence of early postoperative complications.Moreover,it is superior to conventional CAG guided-PCI treatment.