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高频心电图可显露QRS综合波的切迹、含糊等等。而这些表现认为是由于心室肥纤维中激动传播异常的结果。心向量图对此同样敏感并更易识别,故较适宜于临床检查。正常心电向量图有一个光滑凸形的QRS环,蚀缺的出现多见于冠心病、高血压及糖尿病患者,甚至可见于外表健康的老年人。实检模型与流行病学研究的结果使大多数学者认为这些蚀缺提示心肌局灶性纤维化或坏死。蚀缺的诊断标准:如果仅1个面出现蚀缺,时间至少10毫秒,电压(从QRS环内凹的起点到终点作一连线,测该线到内凹最深点的距离)至少0.1毫伏;如果有2个面以
High-frequency ECG can reveal QRS complex notch, vague and so on. These manifestations are thought to be the result of an abnormally aggressive transmission in ventricular fat fibers. This is equally sensitive and easily identifiable, making it more suitable for clinical examinations. The normal ECG vector chart has a smooth convex QRS ring, eclipse appear more common in patients with coronary heart disease, hypertension and diabetes, and even visible in the appearance of healthy elderly. The results of real-life models and epidemiological studies led most scholars to conclude that these erodes suggest focal fibrosis or necrosis of the heart. Erosion criteria: If there is only one eclipse missing, at least 10 milliseconds, the voltage (distance from the concave start to the end of the QRS ring and the line to the deepest point) is at least 0.1 milliseconds V; if there are 2 sides to