Abstract: Objective  To investigate the predictive value of preoperative inflammation in patients with lower extremity arteriosclerosis obliterans and restenosis after stent implantation.
Methods  A total of 86 patients who were admitted to our department from August 2018 to February 2019 who were planned to undergo stent implantation for lower extremity arteriosclerosis obliterans were selected as the research objects.Inflammatory status indicators of the patients were collected upon admission and followed up for 1 year.According to Whether stenosis occurs after stent implantation is divided into stenosis group and non-stenosis group;Logistic regression equation is used to analyze the correlation between preoperative inflammation and restenosis after stent implantation in patients with lower extremity arteriosclerosis obliterans,and draw receiver operating curve,Analyze its predictive value.
Results  A total of 6 patients were lost to follow-up after 1 year of follow-up,and 80 patients were finally included.According to whether stenosis occurred after stent implantation,they were divided into stenosis group(n=32 cases) and non-stenosis group(n=48 cases);Logistic multivariate showed that NLR(OR=18.412),PLR(OR=1.205),and low-density lipoprotein(OR=16.968) were risk factors for restenosis after stent implantation in arteriosclerosis obliteran patients;ROC curve analysis showed that NLR and PLR were The predictive AUC of restenosis after stent implantation in arteriosclerosis obliteran patients is higher than that of low-density lipoprotein.
Conclusion  NLR,PLR,and low-density lipoprotein are the risk factors for restenosis after stent implantation in arteriosclerosis obliteran patients.Monitoring the levels of NLR,PLR,and low-density lipoprotein in arteriosclerosis obliteran patients before stent implantation is important for preventing arteriosclerosis obliteran patients after stent implantation.

Key words: preoperative inflammation, extremity arteriosclerosis obliterans, stent implantation, predictive value of restenosis