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近来许多研究发现,冠心病(CAD)患者休息时或不稳定性心绞痛病人心肌缺血的发生有两个显著的特征:一、连续的血液动力学和心电图监测证明,增加心肌耗氧量不能激发心肌缺血的发作。二、对不稳定性心绞痛患者研究发现2/3以上的短暂性缺血发作不伴有症状。这种所谓哑型(Silent)缺血发作,与伴有症状的几乎没有差别。通过增加心率和血压,不能激发不稳定性心绞痛多数病人缺血的发作,在解释CAD缺血发生的病理生理机制方面有着重要的意义。但对此类病人难以察觉到的心肌氧的需求增加是不能疏忽的。本资料研究结果与在严重的冠状动脉损害状况下,因间隙性的血
Recently, many studies have found that coronary heart disease (CAD) patients with resting or unstable angina patients with myocardial ischemia has two significant features: First, continuous hemodynamic and ECG monitoring shows that increased myocardial oxygen consumption can not stimulate Myocardial ischemia attack. Second, the study of patients with unstable angina found that more than 2/3 of the transient ischemic attack without symptoms. This so-called silent silent attack (Silent) with almost no difference with the symptoms. By increasing heart rate and blood pressure, can not stimulate the onset of ischemia in most patients with unstable angina pectoris, in explaining the pathophysiology of CAD ischemia has important significance. However, this type of patient is difficult to detect the increased demand for myocardial oxygen can not be ignored. This data is presented in relation to the presence of severe episodes of coronary artery injury due to interstitial blood