Accurate Ttreatment Of Left Main Coronary Artery Disease Guided By IVUS

Objective: To investigate the safety and efficacy of different surgical strategies for left main bifurcation lesions under IVUS and non-ivus guidance.Methods: A retrospective analysis was performed on 149 patients with left main coronary artery bifurcation disease treated with PCI in yijishan hospital of wannan medical college from June 2011 to January 2018.The enrolled patients were randomly divided into two groups,namely the single stent group and the double stent group,and each group was further divided into two subgroups,namely the IVUS group and the non-ivus group.The perioperative complications and postoperative follow-up(> for 1 year)were compared between the two groups,that is,the incidence of major adverse cardiac events(MACE),non-perioperative myocardial infarction,target vessel revascularization(TLR)and target vessel revascularization(TVR).Results: Single stent group: there was no significant difference between IVUS group and non-ivus group in the effect of immediate angiography on lateral branches and intraoperative complications after stent implantation.There was no significant difference in the selection of stent diameter between the two groups,and there was a significant difference in the selection of posterior balloon diameter and the size of the postdilation pressure.The reference diameter and the postdilation pressure of the IVUS group were greater,p<0.01.The incidence of MACE events in the non-ivus group was higher than that in the IVUS group(p<0.05,statistically significant).Double stent group: compared with non-ivus group,Proximal Optimization Technique POT was adopted more postoperatively,and the difference was statistically significant(p<0.05).Conclusion: Single stent group: the IVUS group obtained a larger lumen diameter and a lower incidence of MACE events.Dual-stent group: the intraoperative POT rate was higher in the IVUS group.IVUS can guide the precise treatment of left main disease.