摘要Background and Objective:Some patients continue to experience major adverse cardiovascular and cerebrovascular events(MACCE)after percutaneous coronary intervention(PCI)in frigid places.Indexes of inflammation and nutrition alone were shown to predict outcomes in patients with PCI.However,the clinical predictive value of mixed indicators is unclear.This study aimed to assess the predictive value of the albumin/neutrophil/lymphocyte ratio(NLR)on the long-term prognosis of patients with coronary heart disease(CHD)following percutaneous coronary intervention(PCI).Methods:A total of 608 post-PCI CHD patients were categorized into low-and high-index groups based on the optimal cut-off values for albumin and NLR.The primary outcome was a composite endpoint comprising all-cause mortality and major adverse cerebrovascular events.The secondary outcome was the comparison of the predictive efficiency of the new nutritional index,albumin/NLR,with that of albumin or NLR alone.Results:Over the five-year follow-up period,45 patients experienced the composite endpoint.The incidence of endpoint events was significantly higher in the low-index group(12%)compared to the high-index group(4.9%).Receiver operating characteristic(ROC)curve analysis revealed that the albumin/NLR index had a larger area under the curve(AUC:0.655)than albumin(AUC:0.621)or NLR(AUC:0.646),indicating superior predictive efficiency.The prognostic nutritional index had an AUC of 0.644,further supporting the enhanced predictive value of the albumin/NLR index over individual nutritional and inflammatory markers.Conclusion:The albumin/neutrophil/lymphocyte ratio is independently associated with the long-term prognosis of CHD patients post-PCI and demonstrates superior predictive efficiency compared to individual nutritional and inflammatory markers.