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心电高频成分是心肌病变时出现的心电信息的一部分，是以往仅能记录低频成分的普通心电图得不到的。本研究通过对２７例糖尿病人及无心脏疾病、糖尿病的正常人作为对照组的普通心电图与高频心电图的比较分析，发现２７例糖尿病患者，普通心电图正常２５例，异常２例，而高频心电图异常７例，占２５９％；对照组３２例，普通心电图正常３０例，异常２例，高频心电图异常１例，两组高频心电图变化相比有显著性差异（ｐ＜００２５）。提示糖尿病性心肌病变不一定都是冠状动脉供血不足引起，而可能与心脏微血管病变及高血糖对心肌细胞的直接损害有关，同时也提示高频心电图对隐匿性和小灶性心肌缺血与损伤具有一定诊断价值，可作为检查或排除潜在性心肌损害的一种手段
The high-frequency component of ECG is a part of the ECG information that appears when the pathological changes of the myocardium, and can not be obtained by the ordinary ECG that can only record low-frequency components in the past. In this study, 27 patients with diabetes mellitus and without heart disease, normal people without diabetes as a control group of ordinary ECG and high frequency electrocardiogram comparative analysis found that 27 cases of diabetic patients, normal 25 cases of normal ECG, abnormalities in 2 cases, and high frequency Electrocardiogram abnormalities in 7 cases, accounting for 25 9%; control group of 32 patients, normal electrocardiogram in 30 cases, abnormalities in 2 cases, abnormal high-frequency electrocardiogram in 1 case, two groups of high-frequency ECG changes were significantly different (p <0 025). Tip of diabetic cardiomyopathy are not necessarily caused by coronary insufficiency, and may be associated with microvascular lesions and hyperglycemia of myocardial cells on the direct damage, but also prompted high-frequency ECG on occult and focal myocardial ischemia and injury have Certain diagnostic value, can be used as a means of checking or excluding potential myocardial damage