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D-dimer and the incidence of heart failure and mortality after acute myocardial infarction
Xiaoyuan Zhang1,2, Shanjie Wang1,2, Jinxin Liu1,2
1Department of Cardiology, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.
Insights
Elevated D-dimer levels after acute myocardial infarction (AMI) correlate with increased risk of heart failure (HF) post-hospitalization and all-cause mortality. Baseline D-dimer is a significant prognostic marker in AMI patients.
Area of Science:
- Cardiology
- Biomarkers
- Thrombosis
Background:
- D-dimer indicates thrombogenesis and hypercoagulable states post-plaque rupture.
- Limited research exists on baseline D-dimer and heart failure (HF) incidence or mortality in acute myocardial infarction (AMI) populations.
Purpose of the Study:
- To investigate the association between baseline D-dimer levels and the incidence of HF and all-cause mortality in patients with AMI.
Main Methods:
- Prospective cohort study of 4504 consecutive AMI patients with complete data.
- Analysis of plasma D-dimer levels on admission concerning HF incidence and all-cause mortality.
Main Results:
- Over 1-year follow-up, 16.7% developed HF post-hospitalization and 7.1% died.
- Higher D-dimer quartiles (Q3, Q4) were associated with increased risk of post-hospitalization HF (HR 1.51-1.49).
- Highest D-dimer quartile (Q4) showed a >2-fold increased risk of all-cause mortality (HR 2.34). No association with in-hospital HF.
Conclusions:
- Baseline D-dimer levels are associated with the incidence of heart failure after hospitalization and all-cause mortality in patients with acute myocardial infarction.
- D-dimer serves as a prognostic indicator for adverse outcomes in AMI patients.
Objective:
D-dimer might serve as a marker of thrombogenesis and a hypercoagulable state following plaque rupture. Few studies explore the association between baseline D-dimer levels and the incidence of heart failure (HF), all-cause mortality in an acute myocardial infarction (AMI) population. We aimed to explore this association.
Methods:
We enrolled 4504 consecutive patients with AMI with complete data in a prospective cohort study and explored the association of plasma D-dimer levels on admission and the incidence of HF, all-cause mortality.
Results:
Over a median follow-up of 1 year, 1112 (24.7%) patients developed in-hospital HF, 542 (16.7%) patients developed HF after hospitalisation and 233 (7.1%) patients died. After full adjustments for other relevant clinical covariates, patients with D-dimer values in quartile 3 (Q3) had 1.51 times (95% CI 1.12 to 2.04) and in Q4 had 1.49 times (95% CI 1.09 to 2.04) as high as the risk of HF after hospitalisation compared with patients in Q1. Patients with D-dimer values in Q4 had more than a twofold (HR 2.34; 95% CI 1.33 to 4.13) increased risk of death compared with patients in Q1 (p<0.001). But there was no association between D-dimer levels and in-hospital HF in the adjusted models.
Conclusions:
D-dimer was found to be associated with the incidence of HF after hospitalisation and all-cause mortality in patients with AMI.
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