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Coronary Progenitor Cells and Soluble Biomarkers in Cardiovascular Prognosis after Coronary Angioplasty
Published on: January 28, 2020
Hemoglobin levels and coronary artery disease
Michel Chonchol1, Christopher Nielson
1University of Colorado Health Sciences Center, Division of Renal Diseases and Hypertension, Denver, CO 80262, USA. michel.chonchol@uchsc.edu
American Heart Journal
|February 26, 2008
Summary
Both low and high hemoglobin levels increase the risk of developing coronary artery disease (CAD). This study highlights the importance of monitoring hemoglobin levels for cardiovascular health.
Area of Science:
- Cardiology
- Hematology
- Epidemiology
Background:
- Anemia is a known risk factor for cardiovascular disease.
- Limited data exists on the association between hemoglobin levels and new coronary artery disease (CAD) onset.
Purpose of the Study:
- To investigate the relationship between baseline hemoglobin concentration and the incidence of new coronary artery disease (CAD).
Main Methods:
- A historical cohort study of 25,622 patients from Veterans Affairs medical centers.
- Hemoglobin levels were assessed at baseline, and CAD was identified via diagnosis codes or new nitroglycerin prescriptions.
- Analyses were adjusted for multiple cardiovascular risk factors.
Main Results:
- An increased risk of CAD was observed with hemoglobin levels below 15 g/dL and above 17 g/dL.
- Compared to 15.0-17.0 g/dL, hemoglobin levels of 9.0-11.0 g/dL showed a 1.47-fold increased risk (HR 1.47, 95% CI 1.18-1.84).
- Hemoglobin levels ≥17.0 g/dL were also associated with a 1.22-fold increased risk (HR 1.22, 95% CI 1.08-1.37).
Conclusions:
- Both lower (<15 g/dL) and higher (≥17 g/dL) hemoglobin levels are independently associated with an increased risk of new cardiac events.
- These findings suggest a U-shaped relationship between hemoglobin levels and CAD risk.
- Monitoring hemoglobin levels may be crucial for assessing cardiovascular risk.
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