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Published on: December 11, 2013
Risk assessment in the patient with established peripheral arterial disease
Scott Haugen1, Ivan P Casserly, Judith G Regensteiner
1Divisions of Cardiology and General Internal Medicine, Department of Medicine, University of Colorado School of Medicine, Denver, CO, USA.
Insights
Cardiovascular risk in peripheral arterial disease (PAD) patients is high. Emerging inflammatory markers like C-reactive protein (CRP) may improve risk prediction beyond traditional factors and the ankle-brachial index (ABI).
Area of Science:
- Cardiology
- Vascular Medicine
- Inflammation Research
Background:
- Cardiovascular risk prediction in primary and secondary settings presents challenges for practitioners.
- Patients with established peripheral arterial disease (PAD) face a high risk of cardiovascular events.
- Traditional risk factors and the ankle-brachial index (ABI) offer incomplete secondary risk prediction in PAD.
Purpose of the Study:
- To review the utility of the ankle-brachial index (ABI), clinical disease stage, and inflammatory markers for secondary risk prediction in PAD.
- To explore emerging markers, such as C-reactive protein (CRP), for improved cardiovascular risk stratification in PAD patients.
Main Methods:
- Literature review evaluating the role of ABI, clinical staging, C-reactive protein (CRP), and other inflammatory markers.
- Analysis of surrogate markers for systemic atherosclerotic burden and inflammation in PAD.
Main Results:
- The ankle-brachial index (ABI) and traditional risk factors are insufficient for complete secondary risk prediction in PAD.
- Inflammatory markers, including C-reactive protein (CRP), show emerging utility in enhancing cardiovascular risk stratification for PAD patients.
Conclusions:
- Improved secondary risk prediction in PAD can be achieved by incorporating markers of systemic inflammation.
- Accurate identification of high-risk PAD patients can guide intensified preventive measures and improve adherence to therapies and smoking cessation.
Abstract:
Office-based cardiovascular risk prediction continues to challenge practitioners in primary and secondary risk stratification settings. In patients with established peripheral arterial disease (PAD), the risk of cardiovascular events (i.e. death or morbidity due to coronary heart disease and/or cerebrovascular disease) is high, yet traditional risk factors and the ankle-brachial index (ABI) do not provide a complete secondary risk prediction. In this population, office-based cardiovascular risk stratification may be improved by surrogate markers of the systemic atherosclerotic burden, as well as markers of systemic inflammation. This review will evaluate the utility of the ABI, clinical stage of disease, and the emerging role of C-reactive protein (CRP) and other inflammatory markers in secondary risk prediction in PAD. Defining which patients are in the highest category of risk may direct health care providers to emphasize secondary preventive measures, and facilitate patient adherence to recommended medical therapies and smoking cessation.
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