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众所周知,急性心肌梗塞后数周或数月,异常的Q-QS波可逐渐消退甚至完全消失。Pyorala报道:急性心梗后一年Q-QS波的消失率可达48%。国内贺氏报道:急性心梗后二年Q-QS波消失率仅为19%。由于国内未采用心电图明尼苏达编码,其结果难以比较。在心血管病流行学研究中,陈旧性心肌梗塞诊断的主要依据是心电图显示异常的Q-QS波。由于Q-QS波有逐渐消失的自然趋势,一次性横断面研究会遗漏一部分病例,使其诊断价值受限。因此用标准化的方法了解急性心梗后Q-QS波消退的自然史,无论对于心血管病的流
It is well-known that after weeks or months of acute myocardial infarction, abnormal Q-QS waves may subside or even disappear completely. Pyorala reports: Q-QS waves disappear 48% of the year after acute MI. He domestic report: two years after acute myocardial infarction Q-QS wave disappearance rate was only 19%. Because the domestic Minnesota ECG coding is not used, the results are difficult to compare. In the epidemiological study of cardiovascular disease, the main basis for the diagnosis of old myocardial infarction was abnormal Q-QS wave in ECG. Due to the gradual disappearance of Q-QS waves, one-off cross-sectional studies will miss a few cases and limit their diagnostic value. Therefore, a standardized approach to understanding the natural history of Q-QS wave subsidence after AMI is available, regardless of the flow of cardiovascular disease