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[Which coronary investigation should be performed in patients with peripheral arterial diseases?]
Insights
Clinical history and specific tests can identify coronary risk in peripheral vascular disease patients. Early detection aids in managing high-risk individuals and preventing cardiac events.
Area of Science:
- Cardiology
- Vascular Medicine
- Diagnostic Imaging
Background:
- Peripheral vascular disease (PVD) patients have a high risk of coronary artery disease.
- Evaluating coronary risk is crucial for managing PVD patients.
Purpose of the Study:
- To outline methods for evaluating coronary risk in patients with peripheral vascular disease.
- To identify key clinical and diagnostic tools for risk stratification.
Main Methods:
- Review of clinical history features (age, prior myocardial infarction, angina, smoking, diabetes, arrhythmias).
- Assessment of exercise stress testing (treadmill and upper limb).
- Evaluation of Thallium dipyridamole myocardial scintigraphy and coronary angiography.
Main Results:
- Clinical history provides essential coronary risk factors in PVD.
- Exercise stress testing can reveal severe coronary ischemia, with upper limb testing showing reliability.
- Thallium scintigraphy effectively localizes ischemia but requires specialized facilities.
Conclusions:
- A multi-faceted approach combining clinical assessment and diagnostic testing is vital for coronary risk evaluation in PVD.
- Coronary angiography should be used judiciously due to increased procedural risks in this population.
Abstract:
In the context of peripheral vascular disease, the clinical history provides a means of evaluating coronary risk. The key features are: age, previous myocardial infarction especially when recent (under 6 months), anginal pain, smoking, diabetes and ventricular arrhythmias. Treadmill testing, often limited by symptoms of claudication, may reveal severe coronary ischemia and thereby the patients at very high risk. Upper limb exercise stress testing gives results similar to standard protocols of non-atherosclerotic patients when correctly performed and a reliable detection and evaluation of coronary lesions. Thallium dipyridamol myocardial scintigraphy is a very useful diagnostic method but requires special radionuclide facilities. This technique demonstrates the site of ischemia. Coronary angiography should be reserved for special cases because the risks of the procedure are always greater in patients with peripheral vascular disease.