Do the right precordial leads during exercise testing contribute to detection of coronary artery disease?
GROUND: It is still unknown whether or not the additional right precordial leads (RPL) during exercise testing contribute to detection of coronary artery disease (CAD). HYPOTHESIS: The aim of this study was to evaluate the RPL during exercise testing for the detection of CAD. METHODS: The study included 157 consecutive patients (116 men and 41 women, mean age 66 years) suspected of having CAD, who underwent conclusive treadmill exercise testing (heart rate reached at least 85% of the predicted maximum or positive electrocardiogram [ECG] changes were exhibited) and coronary angiography. During exercise testing, the ECG was recorded with the standard 12 leads and 4 RPL (V3R, V4R, V5R, V6R). RESULTS: Of the 157 patients, 67 had CAD (> 75% stenosis in at least one major coronary artery), and 64 had positive ST changes in the standard ECG leads during exercise testing. Using the conventional 12-lead method, sensitivity and specificity were 76 and 86%, respectively. Only three patients exhib
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