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Duchenne肌营养不良患者(DMD)见到有心电图(ECG)异常者可达90%.这些特征性的变化虽然并不限于本病,实际上在通常的临床表现中具有诊断意义,其中包括窦性心动过速;在V_1V_2导中异常高的R波及浅的S波.侧胸导联(V_5)有深而窄的(非梗塞性)Q波,亦可见到P-R间期缩短,V_1呈R_(sr)′型及束枝传导阻滞等.Emery(1969)分析了50例带基因者其中仅发现一例具有如此典型的变化.作者近来证实了Emery氏的发现,另外尚见到V_2导联的Q-S振幅总和及V_1V_2的R/S比值也不正常,而以
Duchenne muscular dystrophy (DMD) shows up to 90% of patients with an abnormal electrocardiogram (ECG) These characteristic changes, although not limited to this disease, actually have diagnostic significance in common clinical manifestations, including sinus Tachycardia, abnormally high R wave and shallow S wave in V_1V_2, deep and narrow (non-infarct) Q wave in lateral chest lead (V_5), shortening of PR interval and V_ sr) ’type and bundle branch block, etc. Emery (1969) analyzed 50 cases of genes with only one such case found with such a typical change. The authors have recently confirmed the discovery of Emery’s, but also to see V_2 lead The sum of QS amplitudes and the R / S ratio of V_1V_2 is also not normal