糖尿病增大无症状心肌缺血发生率

Diabetes Mellitus and Silent Myocardial Ischemia

用常规心电图及动态心电图监测的方法，分别观察３０例糖尿病人和３０例非糖尿病人无症状心肌缺血的发生率。发现无症状心肌缺血在糖尿病组显著高于非糖尿病组（Ｐ＜００５）。部分糖尿病人有严重心肌缺血却无胸痛症状，可能与其植物神经功能损害引起痛阈提高、血中内啡肽水平增高导致痛觉敏感性下降有关。

When we studied silent myocardial ischemia (SMI) by electrocardiogram(ECG)and ambulatory electrocardiographic monitoring,we found a higher incidence of disease in a team of 30 diabetes mellitus patients than in the control( P <0 05) The rise of threshold of pain caused by the damage of autonomic nerve,and the descent of sensitivity of pain caused by the higher level of endorphin in blood,probobly are the reasons for those diabetes mellitus patients to have serious myocardial ischemia without the symptom of chest pain Using ambulatory electrocardiographic monitoring can enhance the inspection rate of SMI