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一般认为,对于急性心肌梗塞病人,低血压可能导致严重的后果。之所以对低血压产生忧虑,主要是基于发生心源性休克的患者预后不良。在心源性休克时,低血压是由于大块心肌损伤,引起喷血功能衰竭(pumpfailure)所致。无疑,动脉压降低本身在常可导致死亡的恶性循环中也起有一定作用,表现为冠状动脉灌注压降低、缺血性损伤加重、低血压更趋明显……等等。此外,任何通过压力感受器引起的心率增加和心肌收缩力增强(由于动脉压的降低所致)都会提高心肌对
It is generally believed that hypotension may have serious consequences in patients with acute myocardial infarction. The reason for the hypotension have concerns, mainly based on the poor prognosis of patients with cardiogenic shock. In cardiogenic shock, hypotension is caused by massive myocardial damage that causes pumpfailure. Undoubtedly, lowering of arterial pressure itself also plays a role in the vicious circle of death that often leads to death, manifested as reduced perfusion pressure in the coronary arteries, increased ischemic injury, and more pronounced hypotension ... and so on. In addition, any increase in heart rate caused by baroreceptors and myocardial contractility (due to decreased arterial pressure) will increase myocardial pairs