Furkalo N K, Lutaĭ M I
Kardiologiia. 1982;22(6):44-50.
Coronarography and bicycle ergometry data in 70 patients with ischaemic heart disease and in 35 patients with the intact cardiac arteries have been compared. In 42 patients with ischaemic heart disease and in 28 healthy individuals the state of intracardiac haemodynamics after exercise have been studied with echocardiography. It was shown that the changes in the total of R (sigma R) waves in multiple leads serve as a sensitive (70%) and specific (88.6%) criterion to detect lesions of the coronary arteries. The increase of sigma R after exercise is, as a rule, combined with marked atherosclerosis, upset contractile function of the myocardium and decreased tolerance to exercise. Uniform decrease of sigma R in multiple leads points to normal or insignificant changes in the function of the left ventricle and is seen in patients with lesion of one vessel or with intact coronaries.
对70例缺血性心脏病患者和35例冠状动脉正常的患者的冠状动脉造影和自行车测力计数据进行了比较。对42例缺血性心脏病患者和28例健康个体运动后的心脏内血流动力学状态进行了超声心动图研究。结果表明，多个导联中R波总和（σR）的变化是检测冠状动脉病变的敏感（70%）和特异（88.6%）标准。运动后σR升高通常伴有明显的动脉粥样硬化、心肌收缩功能紊乱和运动耐量降低。多个导联中σR均匀降低表明左心室功能正常或变化不显著，见于单支血管病变或冠状动脉正常的患者。
