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Using physiologic and pharmacologic stress testing in the evaluation of coronary artery disease
1Department of Cardiology, Veterans Affairs Medical Center, Pittsburgh, Pa., USA.
Insights
Stress testing is a key diagnostic tool for coronary artery disease (CAD), helping primary care practitioners assess its extent and clarify chest pain causes. Advanced imaging and pharmacologic options improve accuracy for diverse patient needs.
Area of Science:
- Cardiology
- Diagnostic Imaging
- Preventive Medicine
Background:
- Coronary artery disease (CAD) is a leading cause of mortality in the US.
- Primary care practitioners require effective tools for CAD evaluation and treatment.
- Noninvasive diagnostic methods are crucial for timely intervention.
Purpose of the Study:
- To outline the role of stress testing in diagnosing and evaluating CAD.
- To discuss adjuncts and alternatives to stress testing.
- To guide test selection and result interpretation for primary care.
Main Methods:
- Review of stress testing protocols and their applications in CAD.
- Integration of myocardial perfusion imaging and echocardiography.
- Consideration of pharmacologic stress testing for non-ambulatory patients.
Main Results:
- Stress testing aids in diagnosing CAD, evaluating chest pain etiology, and assessing exercise tolerance.
- Myocardial perfusion imaging and echocardiography enhance test sensitivity and specificity.
- Test selection depends on patient's exercise capacity, comorbidities, and clinical goals.
Conclusions:
- Stress testing is a valuable, cost-effective tool for CAD assessment in primary care.
- Interpreting results requires considering patient history and pretest cardiovascular disease probability.
- Abnormal or discordant results warrant cardiologist consultation and potential coronary angiography.
Abstract:
Evaluating and treating coronary artery disease (CAD), the leading cause of death in the United States, are priorities for primary care practitioners. Stress testing is a noninvasive, cost-effective technique to help diagnose CAD and evaluate its extent. The test can also be used to clarify the etiology of chest pain, evaluate a medical regimen, identify arrhythmias, risk-stratify patients preoperatively, and determine exercise tolerance. Myocardial perfusion imaging and echocardiography can increase the test's sensitivity and specificity. Pharmacologic testing is available to evaluate patients who are unable to exercise adequately. Test selection is based on the patient's ability to exercise, concurrent illnesses (for example, reactive airway disease), and desired findings. The evaluation of results should be based on history and the pretest probability of cardiovascular disease. A cardiologist should evaluate any results that fall to correlate with the patient's presentation or pretest likelihood of disease for possible coronary angiography.