Why the study?
Does applying Bayes's theorem to half-millimeter ranges of ST-segment depression improve the diagnostic interpretation of exercise stress testing for coronary artery disease?
Population
Patients undergoing exercise stress testing for suspected coronary-artery disease
Design
Other
Key result
The predictive value of exercise-induced ST-segment depression for detecting coronary-artery disease depends on the degree of depression and pretest risk, representing a continuum of risk.
Authors
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Supports graded ST-depression interpretation by pretest probability in exercise testing; leaves open prospective outcome validation of refined thresholds.
Observational
Does applying Bayes's theorem to half-millimeter ranges of ST-segment depression improve the diagnostic interpretation of exercise stress testing for coronary artery disease?
Exercise stress test results should be interpreted as a continuum of risk based on the extent of ST-segment depression and pretest probability, rather than simply as binary 'positive' or 'negative' results.
Rifkin et al. (1977) conducted an observational in coronary-artery disease. Electrocardiographic Exercise Stress Testing was evaluated on diagnostic accuracy of exercise-induced ST-segment depression. The predictive value of exercise-induced ST-segment depression for detecting coronary-artery disease depends on the degree of depression and pretest risk, representing a continuum of risk.