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Value of exercise testing for screening asymptomatic men for latent coronary artery disease
Insights
Treadmill exercise tests flag men at high risk for coronary atherosclerotic heart disease, but have limitations. Coronary angiography can confirm diagnoses when exercise test results are unclear.
Area of Science:
- Cardiology
- Exercise Physiology
Background:
- Treadmill exercise testing is used to identify individuals at high risk for coronary atherosclerotic heart disease.
- Limitations in predictive value and sensitivity of exercise testing are well-documented.
Purpose of the Study:
- To evaluate the role of coronary angiography in cases where treadmill exercise testing yields ambiguous results for coronary atherosclerotic heart disease.
- To correlate exercise-induced electrocardiographic changes with anatomical findings.
Main Methods:
- Analysis of treadmill exercise test results in men at risk for coronary atherosclerotic heart disease.
- Comparison of electrocardiographic responses with coronary angiography findings when indicated.
Main Results:
- Abnormal electrocardiographic responses do not definitively confirm coronary atherosclerotic heart disease.
- Normal electrocardiographic responses do not exclude the possibility of coronary atherosclerotic heart disease.
Conclusions:
- Coronary angiography is a valuable tool for anatomical correlation when exercise testing is inconclusive for coronary atherosclerotic heart disease.
- The procedure is justified in select cases to clarify exercise-induced ST-segment changes.
Abstract:
Treadmill exercise testing identifies a group of men at high risk for coronary atherosclerotic heart disease. However, the predictive value and sensitivity limitations are obvious. An abnormal electrocardiographic response does not absolutely predict the presence of coronary atherosclerotic heart disease, and a normal response does not rule out this possibility. Thus in appropriate instances when the minimal risk of coronary angiography is justified this procedure can be used to determine the anatomic correlation of exercise-induced functional ST-segment changes.