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Predictive value of serum iron on heart failure in patients with acute ST-segment elevation myocardial infarction
Wen Chen1, Guoli Lin1, Caizhi Dai1
1Department of Cardiology, The Affiliated Hospital of Putian University, Putian University, Fujian, China.
Insights
Lower serum iron levels are a significant risk factor for developing heart failure after acute ST-segment elevation myocardial infarction (STEMI). Early prediction of heart failure post-STEMI may benefit from monitoring serum iron.
Area of Science:
- Cardiology
- Biomarkers
- Clinical Medicine
Background:
- Heart failure frequently complicates acute myocardial infarction, necessitating early predictive biomarkers.
- Acute ST-segment elevation myocardial infarction (STEMI) is a critical condition often leading to heart failure.
- Identifying novel biomarkers for early heart failure prediction post-STEMI is crucial for clinical practice.
Purpose of the Study:
- To investigate the association between serum iron levels and the incidence of heart failure following STEMI.
- To evaluate serum iron as a potential predictive biomarker for heart failure in STEMI patients.
Main Methods:
- A cohort study included 41 patients with heart failure post-STEMI and 31 control subjects.
- Demographic and clinical characteristics were analyzed.
- Binary logistic regression and receiver operating characteristic (ROC) analyses were performed to assess predictive values.
Main Results:
- Serum iron levels were significantly lower in patients with heart failure post-STEMI compared to controls.
- Serum iron and Troponin I (Tn-I) were identified as independent predictors of heart failure post-STEMI.
- ROC analysis indicated serum iron has a significant area under the curve (0.808), with an optimal cutoff of 11.87 μmol/L.
Conclusions:
- Reduced serum iron levels are associated with an increased risk of heart failure after STEMI.
- Serum iron serves as a potential independent risk factor and predictive biomarker for heart failure in STEMI patients.
- Monitoring serum iron may aid in the early identification of patients at high risk for heart failure post-STEMI.
Background:
In clinical practice, heart failure often occurs after acute myocardial infarction, and a new biomarker for its early prediction is urgently needed. The aim of this study was to investigate the relationship between serum iron and heart failure after acute ST-segment elevation myocardial infarction (STEMI).
Methods:
A total of 41 patients with heart failure after STEMI and 31 controls were included in the study. The demographic variables and baseline clinical characteristics of both groups were analyzed.
Results:
There were no significant differences between patients with heart failure and controls in terms of demographic characteristics. There were significant differences in terms of serum iron, N terminal pro-B-type natriuretic peptide levels, left atrial diameter, and left ventricular ejection fraction. Binary logistic regression analyses demonstrated that serum iron (odds ratio [OR]: 0.804, 95% confidence interval [CI]: 0.699-0.924) and Tn-I (OR: 1.072, 95% CI: 1.011-1.137) were independent predictors for heart failure (p < .05, respectively). Receiver operating characteristic analysis showed that the area under the curve for serum iron was 0.808 (95% CI: 0.707-0.908, p < .01). The best cutoff value of serum iron was 11.87 μmol/L (sensitivity: 87.1%; specificity: 68.3%).
Conclusions:
Patients with heart failure after STEMI have lower serum iron levels than patients without heart failure after STEMI. Serum iron levels are a risk factor for heart failure after STEMI.
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