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梗塞范围是决定梗塞后左室功能最主要和直接的因素,但不是唯一的因素。梗塞后顺应性的改变、非梗塞心肌收缩的代偿性加强及交感一儿茶酚胺活性的提高等都在不同时相时左室功能发挥各种程度的影响。而后面这些因素又与梗塞范围的大小存在着一定的联系。
The extent of infarction is the most important and direct factor that determines left ventricular function after infarction, but it is not the only factor. Compliance changes after infarction, compensatory enhancement of non-infarction myocardial contraction and sympathetic-catecholaminergic activity increase in different phases of left ventricular function exert various degrees of influence. And behind these factors and the size of the infarct there is a certain link.