Value of treadmill test Duke score on diagnosis of coronary heart disease / 心血管康复医学杂志

ABSTRACT

Objective: To explore value of treadmill test Duke score on diagnosis of coronary heart disease (CHD). Methods: A total of 200 patients suspected CHD were selected. All patients received biochemical examinations, treadmill exercise test (TET) and coronary angiography (CAG) within two weeks. The results of TET, Duke treadmill score（DTS）and CAG were compared and analyzed. Results: The CAG was regard as gold standard diagnosing CHD. （1）Compared with TET alone, there were significant decrease in specificity (72.3% vs.55.4%, χ2=5.161, P=0.021) in positive DTS alone for diagnosing CHD; there were significant increase in sensitivity(72.6% vs. 87.8%，χ2=7.860, P=0.005), negative predictive value(56% vs.76.9%，χ2=6.128, P=0.013) in combined use of TET and DTS for diagnosing CHD; （2）Compared with positive DTS alone, there were significant increase in sensitivity (76.3% vs. 87.8%，χ2=4.334, P=0.037),negative predictive value(52.9% vs. 76.9%，χ2=7.298, P=0.007) and accuracy (69.5% vs. 80.8%，χ2=5.849, P=0.016)in combined use of TET and DTS. Conclusion: Combined use of treadmill exercise test and Duke score can significantly increase sensitivity, negative predictive value and accuracy diagnosing CHD.