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在临床上,冠脉狭窄是引发心肌缺血的最主要原因,心肌缺血患者也大多存在有冠脉狭窄的病变,许多医生就因此走进两个认识误区,要么根据心电图认为冠脉并不存在狭窄;要么根据冠脉造影结果正常而否定心肌缺血的可能性。医学新的研究进展发现,冠脉狭窄与心肌缺血两者之间并不能完全划上等号。1.冠脉狭窄并不一定会导致心肌缺血冠脉狭窄直接导致供给心脏的血液减少,但并不一定会导致心肌缺血病变的发生。当狭窄程度尚不严重时,心肌细胞对缺血具有一定的代偿保护作用,也就是当血液供给轻度减少时,心
Clinically, coronary stenosis is the most important cause of myocardial ischemia, most patients with myocardial ischemia there are lesions of coronary artery stenosis, many doctors therefore entered two misunderstandings, or according to the ECG that the coronary artery does not Stenosis; either based on the results of coronary angiography and negate the possibility of myocardial ischemia. New advances in medicine found that coronary stenosis and myocardial ischemia can not be completely equated between the two. 1. Coronary stenosis does not necessarily lead to myocardial ischemia Coronary stenosis leads directly to the blood supply to the heart to reduce, but does not necessarily lead to the occurrence of myocardial ischemia. When the degree of stenosis is not serious, myocardial cells have a compensatory role in the protection of ischemia, that is, when the blood supply decreased slightly, the heart