Yusuf S, Estrada-Yamamoto E, Reyes C P, Herlitz J, Hjalmarson A
Acta Med Scand. 1982 May;211(3):157-62. doi: 10.1111/j.0954-6820.1982.tb01920.x.
The regression of the ECG signs of myocardial infarction has been studied in 101 patients. A significant increase in R wave amplitude and decrease in Q wave depth on the standard ECG was observed over three months. In 21% of the patients, Q waves disappeared completely. In inferior infarction, these changes were more apparent in the lateral V leads than in the inferior limb leads. Patients with intraventricular conduction defects were excluded. Two factors associated with the Q and R wave changes have been identified. Lower heart rates appeared to facilitate the recovery of R waves, and smaller infarcts, as assessed by peak LDH, showed greater ECG recovery. This study raises the interesting possibility that modification of the heart rate may affect favourably the healing process after an acute myocardial infarction.
对101例患者的心肌梗死心电图征象消退情况进行了研究。在三个月内观察到标准心电图上R波振幅显著增加，Q波深度降低。21%的患者Q波完全消失。在下壁梗死中，这些变化在V导联比在下肢体导联更明显。排除了患有室内传导阻滞的患者。已确定与Q波和R波变化相关的两个因素。较低的心率似乎有助于R波恢复，而通过乳酸脱氢酶峰值评估的较小梗死灶显示出更大程度的心电图恢复。这项研究提出了一个有趣的可能性，即调整心率可能对急性心肌梗死后的愈合过程产生有利影响。
