ABSTRACT
Objective:To explore the predictive value of HEART score combined with N-terminal pro-B-type natriuretic peptides (NT-proBNP) for 3-month major adverse cardiovascular events (MACE) in patients with non-ST-elevation acute coronary syndrome (NSTE-ACS).Methods:This was a retrospective cohort study. Adult patients with acute chest pain who met the diagnostic criteria for NSTE-ACS in the 5th Affiliated Hospital of Sun Yat-Sen University from January 2018 to March 2018 were enrolled. Patients with cardiac chest pain caused by diseases other than NSTE-ACS, non-cardiac chest pain, renal insufficiency, acute cerebral infarction, end-stage disease, pregnant, and incomplete data were excluded. Data of all patients’ general clinical information, first electrocardiogram (ECG), cardiac troponin I (cTnI), and NT-proBNP were collected. The correlation between NT-proBNP level and the occurrence of MACE within 3 months was analyzed. The receiver operating characteristic (ROC) curves was drawn, and the predictive value of NT-proBNP, HEART score, and their combination for 3- month MACE in patients with NSTE-ACS were evaluated.Results:A total of 151 patients were enrolled. Patients with NSTE-ACS were divided into the MACE group ( n=95) and non-MACE group ( n=56) according to whether MACE occurred within 3 months of onset. The level of NT-proBNP, the HEART score, and the cTnI level in the MACE group were significantly higher than those in the non-MACE group (all P<0.001). After risk stratification assessed by HEART score in all patients with NSTE-ACS, it was found that the level of NT-proBNP and the incidence of MACE increased as the risk score increased (all P<0.05). The area under the ROC curve of HEART score, NT-proBNP and their combination were 0.819 (95% CI:0.751-0.887), 0.821 (95% CI:0.752-0.889) and 0.858 (95% CI:0.796-0.919), respectively. Conclusions:The combination of HEART score and NT-proBNP level can improve the predictive value for 3-month MACE in patients within NSTE-ACS, and provide important information for treatment decision and improving prognosis.
ABSTRACT
BACKGROUND AND OBJECTIVES: Biochemical markers are useful for the prediction of cardiac events in patients with acute coronary syndrome (ACS). The N-terminal fragment of the BNP prohormone (NT-proBNP), which is synthesized by cardiac ventricles in response to increased wall stress, may be a prognostic marker in ACS. The relation between the NT-pro BNP levels on admission and major adverse cardiovascular events (MACEs) were assessed in a cohort of patients with ACS. SUBJECTS AND METHODS: Between October 2002 and April 2004, blood samples for the determination of NT-proBNP level were obtained on admission from 78 patients with ST-elevation myocardial infarction (STEMI), 32 with non-ST elevation MI(NSTEMI) and 66 with unstable angina (UA). Patients were followed concerning MACEs (death, MI, heart failure, stroke and revascularization) for a median of 7 months in median. RESULTS: 22 patients (13%) had events. The mean NT-proBNP level was significantly lower in the event-free survivors than in those with events (1342+/-1598 versus 6129+/-6522 pg/mL, p<0.0001). The optimal cut-off value of the NT-proBNP level using a receiver-operating-characteristic curve was 1445 pg/mL. The unadjusted risk ratio of patients with an NT-proBNP level greater than the threshold was 7.0 (95% confidence interval, 2.6 to 19.0). In a multivariate Cox regression model, including clinical background factors and other biochemical markers, the NT-proBNP level was the most powerful indicator of MACEs (risk ratio, 8.0 [95% confidence interval, 1.7 to 37.1]). The coronary angiographic Gensini score was also a predictor of prognosis in ACS (risk ratio, 3.8 [95% confidence interval, 1.0 to 14.0]). CONCLUSION: A single measurement of the NT-proBNP level on admission appears to be useful as a prognostic factor in the prediction of MACEs in patients after ACS.
Subject(s)
Humans , Acute Coronary Syndrome , Angina, Unstable , Biomarkers , Cohort Studies , Heart Failure , Heart Ventricles , Myocardial Infarction , Odds Ratio , Prognosis , Stroke , SurvivorsABSTRACT
Objective To investigate the effects of B-type natriuretic peptides (BNP) on expression of monocyte chemoattractant protein-1(MCP-1) in rat peritoneal macrophages and to identify the inflammation-mediated effects of BNP in macrophages. Methods Peritoneal macrophages of primary culture were treated with BNP, BNP+HS-142-1, or BNP+TNF-?+HS-142-1. The protein expression of MCP-1 was measured by Western blot. Results BNP enhanced the MCP-1 protein expression in macrophages, and this effect could be abrogated by HS-142-1. In addition, BNP could inhibit TNF-? induced MCP-1 expression. Conclusion BNP can induce the MCP-1 protein expression in macrophages, suggesting BNP has a pro-inflammatory effect. However, BNP also can inhibit TNF-? induced MCP-1. These findings suggest that the effect of inflammation-mediated by BNP is biphasic though the mechanism is still unclear.