Is ST/HR slope a predictor of coronary artery lesion in effort angina pectoris? A comparison of exercise hemodynamic variables.
This study evaluated the clinical value of the ST/HR slope and exercise hemodynamic variables for the severity of coronary artery lesions. Twenty-nine patients with effort angina pectoris underwent ergometer exercise during right side heart catheterization. The ST/HR slope failed to differentiate three groups stratified by the number of involved coronary vessels. The ST/HR slope was uncorrelated with the Gensini score (r = 0.24). By contrast, pulmonary capillary pressure (PCP), cardiac output index (CI) and CI/PCP at peak exercise correlated significantly with the Gensini score (r = 0.73, 0.53 and 0.69, respectively). We conclude that the ST/HR slope is not a useful predictor of the severity of coronary artery lesions, while exercise hemodynamic variables measured by right side heart catheter are useful.
Yamabe
H
H
First Department of Internal Medicine, Kobe University School of Medicine, Japan.
Kakimoto
T
T
Fujita
H
H
Kim
S
S
Yano
T
T
Yokoyama
M
M
D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000175:diagnosis* / Q000473:pathology / Q000503:physiopathology; D006328:Cardiac Catheterization; D002302:Cardiac Output; D003331:Coronary Vessels / Q000473:pathology*; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006339:Heart Rate; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011669:Pulmonary Wedge Pressure