Predictive value of systemic immune-inflammation index to stent thrombosis in patients with myocardial infarction after intracoronary stent implantation
Predictive value of systemic immune-inflammation index to stent thrombosis in patients with myocardial infarction after intracoronary stent implantation
Objective To discuss the predictive value of systemic immune-inflammation index(SII)to stent thrombosis in patients with myocardial infarction(MI)after intracoronary stent implantation.Methods MI patients undergone intracoronary stent implantation(n=462)were retrospectively chosen from the 940th Hospital of Chinese PLA Joint Logistics Support Force from Jan.2021 to June 2022.All patients were followed up for 1 y,and divided into stent thrombosis group(n=54)and control group(n=408)according to they had or had not stent thrombosis.The clinical characteristics were observed in 2 groups.The predictive value of SII to stent thrombosis in MI patients after intracoronary stent implantation by using ROC curve analysis.Results The comparison in age,diabetes,stent numbers,drug compliance and SII showed statistical differences between 2 groups(P＜0.05).SII had a higher predictive value to stent thrombosis(AUC=0.786,95％CI:0.725～0.846,P=0.000),and the optimal diagnostic critical value was 653,sensitivity was 0.704 and specificity was 0.686.The results of multi-factor regression analysis showed that diabetes,irregular medication,stent numbers ≥ 2 and SII ≥ 653 were independent risk factors of postoperative stent thrombosis(P＜0.05).The incidence of relapse MI increased significantly(33.33％vs.13.24％,P=0.000)and mortality increased significantly(11.11％vs.2.70％,P=0.002)in stent thrombosis group compared with control group.Conclusion SII has some predictive value to stent thrombosis in MI patients after intracoronary stent implantation.
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