Lorber A, Maisuls E, Weiss D, Palant A
Heart Institute, Lady Davis Carmel Hospital, Haifa, Israel.
Int J Cardiol. 1988 Jun;19(3):309-14. doi: 10.1016/0167-5273(88)90235-5.
R wave amplitude changes during stress testing were validated in 12 ischemic patients with normal coronary angiograms. The data were compared with findings obtained from 10 patients with clinical and angiographic evidence of coronary arterial disease and 10 normal controls. An abnormal R wave amplitude response occurred in 83.3% of the group with normal coronary angiography, in 80% of the group of patients with clinical and angiographic evidence of coronary arterial disease, and in only 10% of the control group. The similarity of R wave amplitude changes in the first two group suggests that these changes are related to ischemia. If so, then R wave amplitude response to exercise could be of value in the electrocardiographic diagnosis of ischemia in patients with angiographically normal coronary arteries.
在12例冠状动脉造影正常的缺血性患者中验证了负荷试验期间R波振幅的变化。将这些数据与10例有冠状动脉疾病临床和血管造影证据的患者以及10例正常对照者的结果进行了比较。冠状动脉造影正常组中83.3%出现异常R波振幅反应，有冠状动脉疾病临床和血管造影证据的患者组中80%出现异常R波振幅反应，而对照组中只有10%出现异常R波振幅反应。前两组中R波振幅变化的相似性表明这些变化与缺血有关。如果是这样，那么运动时R波振幅反应可能对冠状动脉造影正常的患者的缺血性心电图诊断有价值。
