Predictive value of serum LRG1 for contrast nephropathy in patients with coronary heart disease undergoing percutaneous coronary intervention
QIAO Haixia1 WANG Pengfei2 GUO Jingtao1 ZHOU Jiang1 LIANG Yandong1 FU Lijun1
1.Department of Cardiology, Chengde Central Hospital, Hebei Province, Chengde 067000, China;
2.Department of Cardiology, Affiliated Hospital of Chengde Medical College, Hebei Province, Chengde 067000, China
Abstract:Objective To explore the predictive value of serum leucinerich-alpha-2-glycoprotein-1 (LRG1) in contrast nephropathy after percutaneous coronary intervention (PCI) in patients with coronary heart disease. Methods A total of 293 patients with coronary heart disease undergoing PCI in Chengde Central Hospital from January 2017 to December 2019 were divided into contrast nephropathy group (57 cases) and non-contrast nephropathy group (236 cases) according to the occurrence of contrast nephropathy after PCI. The serum LRG1 level was detected by enzyme linked immunosorbent assay, and demographic data, glucose and lipid metabolism indexes, and renal injury related indexes were collected. Multivariate logistic regression analysis was used to analyze the influencing factors of contrast nephropathy in patients with coronary heart disease after PCI. Receiver operating characteristic (ROC) curve was drawn to evaluate the predictive value of serum LRG1 for contrast nephropathy. Results The white blood cell (WBC), red blood cell distribution width (RDW), uric acid (UA), Cystatin C (Cys-C), serum creatinine (Scr), LRG1 and contrast dose levels in contrast nephropathy group were higher than those in non-contrast nephropathy group, estimated glomerular filtration rate (eGFR) levels was lower than non-contrast nephropathy group (P < 0.05). Elevated Cys-C, Scr, contrast dose and LRG1 were independent risk factors of contrast nephropathy after PCI (OR = 1.537, 1.465, 1.664, 1.592; P < 0.05), and elevated eGFR was protective factor of contrast nephropathy (OR = 0.809, P < 0.05). ROC curve showed that the AUC of LRG1 in predicting contrast nephropathy was 0.853, the cut-off value was 319.67 ng/mL, sensitivity was 83.47% and specificity was 80.70%. Conclusion Elevated serum LRG1 is an independent risk factor of contrast nephropathy in patients with coronary heart disease after PCI. Early detection can be used as a biochemical index to predict contrast nephropathy.