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通过冠心病监护及新的“侵入性”检查技术的应用,使我们对急性心肌梗塞的自然病史有了更深的认识。但应用这些新技术需要特殊的设备且不无危害性,尤其是在技术不熟练者。当无此类设备时,凭借严密观察和细致检查,亦可掌握很多情况。为了从临床观察中取得最大收益,须对急性心肌梗塞及其并发症的体征有一通盘认识。特别是当患者缺乏疼痛症状,而只有呼吸困难、恶心、呕吐、昏厥时,更为重要。这种无痛的心肌梗塞常见于已使用β-肾上腺素能受体阻滞剂的患者以及术后发生梗塞的病人,其心电图在早期可以正常。
Through the application of coronary care and new “invasive” techniques, we have gained a deeper understanding of the natural history of acute myocardial infarction. However, the application of these new technologies requires special equipment and is not non-hazardous, especially in those who are unskilled. When no such equipment, with close observation and careful examination, but also grasp a lot of situations. In order to obtain the maximum benefit from clinical observation, we must have a general understanding of the signs of acute myocardial infarction and its complications. Especially when patients lack of pain symptoms, but only dyspnea, nausea, vomiting, fainting, even more important. This painless myocardial infarction is common in patients who have been using beta-adrenergic blockers and in patients who have had an infarction after surgery, and their electrocardiogram may be normal at an early stage.