Williams D O, Most A S
Cardiology. 1980;66(4):241-9. doi: 10.1159/000170871.
To determine the clinical, angiographic and hemodynamic characteristics of patients with a strongly positive exercise test, 37 subjects demonstrating greater than or equal to 3 mm S-T segment depression were identified among 892 consecutive diagnostic treadmill evaluations. Typical angina by history was present in 78%. 30 patients (81%) had a normal resting electrocardiogram. The strongly positive exercise response was elicited at < 90% of the predicted maximal heart rate in 31 patients (84%). 20% of patients did not experience angina during testing. 20 patients underwent cardiac catheterization. All 20 demonstrated multivessel disease and each had significant stenosis of either the left main (25%) or left anterior descending (95%) coronary artery. Left ventricular function was well preserved.
为确定运动试验强阳性患者的临床、血管造影和血流动力学特征，在892例连续的诊断性跑步机评估中，识别出37例ST段压低大于或等于3mm的受试者。有典型心绞痛病史的患者占78%。30例患者（81%）静息心电图正常。31例患者（84%）在预测最大心率的90%以下出现运动试验强阳性反应。20%的患者在测试期间未出现心绞痛。20例患者接受了心导管检查。所有20例均显示多支血管病变，且每例患者的左主干（25%）或左前降支（95%）冠状动脉均有明显狭窄。左心室功能保存良好。
