Objective:To discuss the clinical value of pan-immune inflammation index(PIV)in predicting the major adverse cardiovascular events(MACE)within 1 year after percutaneous coronary intervention(PCI)in the elderly patients with coronary heart disease,and to clarify the role of inflammatory response in postoperative recovery and prognosis of the patients with coronary heart disease.Methods:A total of 150 elderly patients with coronary heart disease who underwent PCI from July 2020 to August 2023 were selected as the research subjects;according to the occurrence of MACE within 1 year after operation,they were divided into MACE group(n=28)and non-MACE group(n=122);the baseline data and biochemical indicators of the patients were collected,and PIV was calculated;multivariate Logistic regression was used to analyze the influencing factors of MACE within 1 year after PCI in the elderly patients with coronary heart disease;receiver operating characteristic(ROC)curve was used to analyze the predictive value of PIV for MACE within 1 year after PCI in the elderly patients with coronary heart disease.Results:Compared with non-MACE group,the levels of total cholesterol(TC)and low-density lipoprotein cholesterol(LDL-C),neutrophils(NEUT),platelets(PLT)counting and PIV in the patients in MACE group were significantly increased(P<0.05);there were no significant differences in other data between two groups(P>0.05).The multivariate Logistic regression analysis results showed that the levels of TC(OR=1.571,95％CI:1.088-2.270)and LDL-C(OR=32.506,95％CI:8.880-118.994)and PIV(OR=1.014,95％CI:1.010-1.019)were the influencing factors of MACE within 1 year after PCI in the elderly patients with coronary heart disease(P<0.05).The ROC curve analysis results showed that the area under the ROC curve(AUC)of PIV for predicting MACE was 0.857(95％CI:0.762-0.951),the sensitivity was 0.821,the specificity was 0.959,the maximum Youden index was 0.780,and the best cut-off value was 778.805(P<0.01).Conclusion:PIV has important predictive value for MACE within 1 year after PCI in elderly patients with coronary heart disease.

Objective To investigate the relationship between the expression of serum angiopoietin-like protein 8(ANGPTL8)and Kruppel-like factor 2(KLF2)and the degree of coronary artery disease and the occurrence of major adverse cardiac events(MACE)in patients with acute myocardial infarction(AMI).Methods A total of 106 patients with AMI who were hospitalized in our hospital from January 2021 to June 2023 were selected as the research objects.According to the degree of coronary artery disease,the patients were grouped into mild group(52 cases)and severe group(54 cases).According to the occurrence of MACE,the patients were grouped into MACE group(18 cases)and non-MACE group(88 cases).General patient data were collected.Serum ANGPTL8 and KLF2 levels were detected by enzyme-linked immunosorbent assay(ELISA).Spearman correlation analysis was applied to analyze the correlation between serum ANGPTL8 and KLF2 levels and Gensini score in AMI patients.Multivariate logistic regression was applied to analyze the influencing factors of coronary artery disease degree in patients with AMI.Receiver operating characteristic(ROC)curves were drawn to analyze the value of serum ANGPTL8 and KLF2 levels in predicting the occurrence of MACE in AMI patients.Results The proportions of patients with history of hypertension and hyperlipidemia,systolic blood pressure,diastolic blood pressure,levels of triacylglycerol(TG),N-terminal pro-B-type natriuretic peptide(NT-proBNP),cardiac troponin I(cTnI),Gensini score,and level of serum ANGPTL8 in the severe group were higher than those in the mild group(P<0.05).The level of high-density lipoprotein cholesterol(HDL-C)and serum KLF2 in the severe group were lower than those in the mild group(P<0.05).The number of lesions in the mild group and the severe group was statistically obvious(P<0.05).Serum ANGPTL8 level in AMI patients was positively correlated with Gensini score(r=0.638,P<0.05),and serum KLF2 level was negatively correlated with Gensini score(r=-0.612,P<0.05).History of hypertension,hyperlipidemia,cTnI and ANGPTL8 were risk factors for the progression of severe coronary artery disease in patients with AMI(P<0.05),while HDL-C and KLF2 were protective factors(P<0.05).The serum level of ANGPTL8 in AMI patients in the MACE group was higher than that in the non-MACE group(P<0.05),and the serum KLF2 level in the MACE group was lower than that in the non-MACE group(P<0.05).The area under the curve of serum ANG-PTL8 and KLF2 levels and their combination in predicting the occurrence of MACE in AMI patients was 0.740(95%CI:0.646～0.820),0.799(95%CI:0.710～0.870),and 0.806(95%CI:0.717～0.876),respectively.Conclusion The expressions of serum ANGPTL8 and KLF2 are closely related to the degree of coronary artery disease in patients with AMI,and have certain predictive value for the occurrence of MACE.

Objective To explore the role of fibrobronchoscopy in diagnosis and treatment of se- vere chest trauma. Methods A retrospective analysis was done on 114 patients with severe chest trau- ma who were diagnosed and treated by fibrobronchoscope from January 1999 to July 2007. We finished 289 times of fihrohronchoscopies including 181 times through nasal cavity, 32 through tracheal, 52 through oral cavity and 56 through traeheostomy tube. SaO2 and arterial blood gas were monitored continu- ously before and after operation, and respirator support or oxygen was administered simultaneously. Re- suits Definite diagnosis was achieved in all patients, of whom were 102 patients treated with lavement. SaO2 was significantly increased in all patients after bronchial lavement (P <0.01) and Pao2 was signifi- candy ameliorated two hours after bronchial lavement (P < 0.05). Conclusions Fibrobronchoscopy can identify diagnosis of bronchial injury and remove foreign body, secretion, blood and phlegm for pa- tients with severe chest trauma. Meanwhile, fibrohronchoscopy can relieve obstructive atelectasis and ob- structive pneumonia, improve respiratory function and hence increase survival rate.