Predictive value of Pan-immune inflammation value for reduced ejection fraction after myocardial infarction and the construction of decision tree model
Objective To investigate the correlation between changes in the preoperative and postoperative pan-immune inflammation value(PIV)and the changes in left ventricular ejection fraction(LVEF)at 7～14 days post-surgery in patients with acute myocardial infarction.Also,to construct a decision tree classification model to investigate the predictive value of PIV changes for reduced ejection fraction.Methods Seventy-six patients diagnosed with acute myocardial infarction and undergoing coronary artery intervention treatment at the second affiliated hospital of Wannan Medical College from 2019 to 2023 were included as the study subjects.Preoperative and postoperative PIV changes within 24 hours were collected,and the changes in LVEF between 7～14 days post-surgery were analyzed.Patients were divided into LVEF reduction group and non-reduction group.The Chi-square test,T-test,and U-test were used to compare the intergroup differences in demographic data and clinical indicators between the two groups.A decision tree classification model was used to explore the classification value of clinical indicators and determine the threshold.Results The LVEF reduction group(24 cases)and the non-reduction group(52 cases)showed significant differences in postoperative pan-immune in-flammation value(PIV)levels(P＜0.05).The decision tree classification revealed that whether the increase in PIV value exceeded 361.824 was the root node for determining postoperative LVEF decline.Postoperative changes in neutrophil levels,preoperative EF value,bilirubin levels,and high-density lipoprotein were identi-fied as important subnodes in the classification model.Conclusion Postoperative elevation of PIV is associat-ed with short-term LVEF decline in patients with acute myocardial infarction,indicating clinical reference val-ue.
NETL
NSTL
万方数据
