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Chronic stable angina pectoris. Risk stratification and treatment
1Section of cardiology, West Virginia University School of Medicine, Morgantown.
Postgraduate Medicine
|March 1, 1992
Summary
Stable angina diagnosis involves history, risk factors, ECG, and stress tests. Advanced imaging and cardiac catheterization aid risk stratification, guiding medical therapy and revascularization choices like bypass surgery or angioplasty.
Area of Science:
- Cardiology
- Diagnostic Imaging
- Interventional Cardiology
Background:
- Stable angina requires a systematic diagnostic approach.
- Risk stratification is crucial for appropriate patient management.
- Current guidelines emphasize a combination of clinical evaluation and diagnostic testing.
Purpose of the Study:
- To outline the diagnostic workup for stable angina.
- To detail the role of various noninvasive and invasive tests.
- To summarize current therapeutic strategies, including medical management and revascularization.
Main Methods:
- Initial assessment includes patient history, risk factor evaluation, physical examination, and resting electrocardiogram (ECG).
- Noninvasive exercise stress testing is used for risk stratification.
- Abnormal or equivocal ECG/stress test results may warrant exercise testing with thallium scintigraphy or cardiac catheterization.
Main Results:
- Thallium scintigraphy offers higher sensitivity and specificity than standard stress tests.
- Cardiac catheterization is recommended for patients with significant risk factors, severe/progressive angina, or congestive heart failure.
- Medical therapy includes nitrates, beta-blockers, and calcium channel blockers.
Conclusions:
- Coronary artery bypass graft surgery is indicated for left main disease, ventricular dysfunction, or severe three-vessel disease.
- Percutaneous transluminal coronary angioplasty (PTCA) is effective for one- or two-vessel disease.
- The role of three-vessel PTCA requires further investigation.