The predictive value of the elderly nutritional risk index combined with BNP on the readmission rate of elderly patients with chronic heart failure
Objective To explore the relationship between nutritional risk index(GNRI)and plasma brain natriuretic peptide(BNP)levels with readmission rate in elderly patients with chronic heart failure,in order to evaluate their potential value in predicting readmission risk.Methods A cohort study was conducted on 200 elderly patients with chronic heart failure admitted to the People's Hospital of Anshun City from Janu-ary to December 2021.All the patients were followed up for one year after discharge,and were divided into the readmission group and the non-readmission group according to whether they were readmitted or not.The gen-eral data,GNRI and BNP levels of the two groups were compared.The risk factors of readmission of elderly patients with chronic heart failure were analyzed by binary logistic regression.The predictive value of GNRI and BNP was analyzed by the ROC curve.Results A total of 66 elderly patients with chronic heart failure were readmitted for treatment among the 200 patients.The GNRI level of patients in the readmission group were lower than that in the non-readmission group,and the BNP level was significantly higher than that in the non-readmission group,with statistical significance(P<0.05).Logistic regression analysis showed that high-density lipoprotein,BNP and GNRI were the risk factors for readmission of elderly patients with chronic heart failure(P<0.05).In addition,the ROC curve results showed that the area under the curve(AUC)of GNRI,BNP,and their combination in predicting the readmission rate of elderly patients with chronic heart failure were 0.797,0.785,and 0.883,respectively,with sensitivity of 74.6%,69.7%,and 76.9%,and specificity of 78.8%,88.1%,and 89.4%,respectively.Conclusion BNP and GNRI are factors that affect the readmission of elderly patients with chronic heart failure.And the combination of GNRI and BNP has better predictive val-ue in the readmission rate of elderly patients with chronic heart failure.