摘要
Objective To compare the diagnostic value of QT dispersion and ST segment depression for coronary heart disease during exercise treadmill testing. Methods The changes of QT dispersion and ST segment depression on resting and peak exercise treadmill test were analysed in 36 patients with coronary heart disease. Results Both QT dispersion was significantly increased with cxercise. The increases of QT dispersion were positively correlated with ST segment depression. Compared with ST segment depression analysis, the specificity of QTd≥60msec was higher and the sensitivity was lower. Conclusion The QT dispersion may be a new accurate indexes in diagnosing myocardial ischemia of patients with coronary heart disease.
Objective To compare the diagnostic value of QT dispersion and ST segment depression for coronary heart disease during exercise treadmill testing. Methods The changes of QT dispersion and ST segment depression on resting and peak exercise treadmill test were analysed in 36 patients with coronary heart disease. Results Both QT dispersion was significantly increased with cxercise. The increases of QT dispersion were positively correlated with ST segment depression. Compared with ST segment depression analysis, the specificity of QTd≥60msec was higher and the sensitivity was lower. Conclusion The QT dispersion may be a new accurate indexes in diagnosing myocardial ischemia of patients with coronary heart disease.
出处
《合肥医学院学报》
2003年第2期130-131,共2页
Journal of Zunyi Medical University
关键词
冠心病
运动试验
QT离散度
ST段
coronary heart
disease exercise treadmill test
QT dispersion
ST segment
