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[Correlation between exercise test and coronariography].

E Salazar, M A Lara, M Gil

    Archivos Del Instituto De Cardiologia De Mexico
    |November 1, 1976
    PubMed
    Summary
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    The maximal treadmill exercise-stress test shows 89.7% sensitivity and 57.1% specificity for detecting coronary artery disease. While generally effective, false positives and negatives can occur, especially with other heart conditions present.

    Area of Science:

    • Cardiology
    • Diagnostic Testing

    Background:

    • The maximal treadmill exercise-stress test is a common diagnostic tool.
    • Evaluating its accuracy in identifying coronary artery disease is crucial.

    Purpose of the Study:

    • To assess the sensitivity and specificity of the maximal treadmill exercise-stress test.
    • To correlate exercise test results with selective coronary arteriography findings.

    Main Methods:

    • Fifty patients underwent maximal treadmill exercise-stress testing and selective coronary arteriography.
    • Patients were not on cardioactive drugs prior to the study.

    Main Results:

    • The test demonstrated 89.7% sensitivity and 57.1% specificity.
    • False negatives occurred in 10.3% of patients with coronary disease.

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  • False positives were observed in 38.1% of patients without coronary lesions, often due to other cardiac conditions.

    • Conclusions:

    • The exercise-stress test has adequate sensitivity but acceptable specificity for coronary artery disease.
    • Other heart diseases can influence test accuracy, leading to false positives.
    • Patients with positive tests and coronary disease showed impaired aerobic function and reduced myocardial oxygen consumption.