Key result
Adding postexercise HR, R-ST depression, and baseline abnormalities is linked to substantially improved two-step ECG accuracy.
Why the study?
The diagnostic accuracy of the two-step postexercise ECG test for coronary artery disease needed evaluation considering additional factors like postexercise heart rate and R-ST depression.
Observational (n=305)
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Moderate stress testing has limited diagnostic accuracy in suspected CAD; leaves open need for improved noninvasive tests.
Peter F. Cohn (1972) conducted an observational in Chest pain syndromes suspected of coronary artery disease (n=305). Two-step postexercise ECG vs. Selective coronary cinearteriography was evaluated on Diagnostic accuracy. The diagnostic accuracy of the two-step postexercise ECG is greatly enhanced when postexercise heart rate, R-ST depression, and preexercise ECG abnormalities are considered.
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