Frass M, Glogar D, Probst P, Weidinger F, Kaindl F
Wien Klin Wochenschr. 1986 Feb 7;98(3):65-9.
R-wave amplitude changes during exercise were compared in patients with cardiomyopathy (n = 32), patients with coronary artery disease (n = 58) and controls (n = 12). Patients with cardiomyopathy (CMP) had a smaller R-wave amplitude (RWA) at rest than those with coronary artery disease (CAD). At comparable levels of exercise patients with CMP showed no change in RWA, while those with CAD demonstrated an increase in RWA. Controls showed a decline in RWA. In patients with CAD changes in RWA during exercise were more sensitive in the detection of disease than ST-segment changes. Left ventricular function was the major determinant of the direction and magnitude of RWA changes both in patients with CMP and CAD, with lesser changes in RWA in patients with more severely reduced left ventricular function.
对心肌病患者（n = 32）、冠状动脉疾病患者（n = 58）和对照组（n = 12）运动期间的R波振幅变化进行了比较。心肌病（CMP）患者静息时的R波振幅（RWA）小于冠状动脉疾病（CAD）患者。在相当的运动水平下，CMP患者的RWA无变化，而CAD患者的RWA增加。对照组的RWA下降。在CAD患者中，运动期间RWA的变化在疾病检测中比ST段变化更敏感。左心室功能是CMP和CAD患者RWA变化方向和幅度的主要决定因素，左心室功能严重降低的患者RWA变化较小。
