论文部分内容阅读
为探讨梗塞前心绞痛对急性心肌梗塞的影响，本文对79例急性心肌梗塞病例按有无梗塞前心绞痛分为二组。两组间性别、年龄及冠状动脉病变程度无显著性差异（P＞0．05）。有梗塞前心绞痛组心肌酶峰值浓度低，左室射血分数及局部室壁运动较好，组间有显著性差异（P＜0．01），有梗塞前心绞痛组室壁瘤及急性左心功能不全发生率显著低于无梗塞前心绞痛组（P＜0．05），且有梗塞前心绞痛组内存在侧支循环者心肌酶峰值明显减低（P＜0．05）。结果显示有梗塞前心绞痛者心肌坏死、损伤程度较轻，左心功能保存较好，并发症发生率较低，提示有心肌缺血预适应的参与，侧支循环有增强心肌保护作用的征象。
In order to explore the impact of pre-infarction angina on acute myocardial infarction, 79 cases of acute myocardial infarction were divided into two groups according to whether there was pre-infarction angina pectoris. There was no significant difference in gender, age and degree of coronary artery disease between the two groups (P> 0.05). Pre-infarction angina group myocardial enzyme peak concentration, left ventricular ejection fraction and local wall motion is better, there was a significant difference between groups (P <0.01), with pre-infarction angina group aneurysm and acute left heart The incidence of dysfunction was significantly lower than that of the group without pre-infarction angina (P <0.05), and the peak of myocardial enzymes in patients with pre-infarction angina was significantly decreased (P <0.05). The results showed myocardial infarction patients with myocardial necrosis, less damage, preserved left ventricular function better, the incidence of complications is lower, suggesting that myocardial ischemic preconditioning participation, collateral circulation has the role of enhancing myocardial protection.