Korean Circ J.
1993 Aug;23(4):566-570. 10.4070/kcj.1993.23.4.566.
The Evaluation of Coronary Artery Stenosis by Exercise-Induced Negative U Wave
- KMID: 2029370
- DOI: http://doi.org/10.4070/kcj.1993.23.4.566
Abstract
- BACKGROUND
Negative U wave is frequent maker of systemic hypertension, aortic or mitral regurgitation and myocardial ischemia. This study was undertaken to determine the diagnostic significance of exercise-induced negative U wave in coronary artery stenosis. METHOD: 72 patients(46 men and 26 women ; 24~66 years of age) with chest pain were analysed with exercised-induced negative U wave and coronary angiographic finding. RESULT: Exercise-induced negative U wave was seen in 14 patients(19%). Among 14 patients with exercise-induced negative U wave, the predictive value of significant coronary artery stenosis(> or =75% stenosis of major coronary artery) was 71%, Exercise-induced negative U wave is more prevalent in patients with significant coronary artery stenosis(p<0.05). CONCLUSION: Exercise-induced negative U wave is a good marker of significant coronary artery stenosis.
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