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心肌梗塞(以下简称 MI)大多累及左室游离壁或室间隔。单纯右室 MI 实属罕见,尸体剖检证实其发病率还不到 MI 的2%。右室 MI 发病率低的原因,目前尚不完全清楚,可能是因为:(1)右室心肌数量少。(2)右室壁压力较低。(3)右室侧枝循环较丰富。此外右室壁薄就可能从右室腔内获得足够的营养。值得注意的是患左室
Myocardial infarction (hereinafter referred to as MI) mostly involving the left ventricular free wall or ventricular septum. Simple right ventricular MI is rare, the autopsy confirmed the incidence of less than 2% of MI. The reason for the low incidence of right ventricular MI, is not yet fully understood, probably because: (1) a small number of right ventricular myocardium. (2) lower right ventricular wall pressure. (3) Right ventricular collateral circulation more abundant. In addition, the thin right ventricle may get enough nutrients from the right ventricular cavity. It is noteworthy that suffering from left ventricular