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目的探讨梗死前心绞痛对初次急性心肌梗死患者近期预后的影响。方法通过测定 10 1例初发心肌梗死患者的肌酸激酶 ( CK)峰值和左室射血分数 ( L VEF) ,比较梗死范围及心功能状况 ;并对住院期间各组心脏事件的发生率及病死率进行比较分析。结果梗死前 1周内心绞痛发作患者的临床状况及近期预后明显优于无心绞痛发作。差异具有显著的统计学意义 ( P<0 .0 1)。结论梗死前心绞痛可能由于缺血预适应对梗死面积大小、左心室功能及预后具有益作用。
Objective To investigate the effect of pre-infarction angina on short-term prognosis of patients with initial acute myocardial infarction. Methods The infarct size and cardiac function were compared by measuring the peak creatine kinase (CK) and left ventricular ejection fraction (L VEF) in 101 newly diagnosed patients with myocardial infarction. The incidences of cardiac events Mortality for comparative analysis. Results The clinical status and recent prognosis of patients with angina pectoris within 1 week before infarction were significantly better than those without angina pectoris. The difference was statistically significant (P <0.01). Conclusions Preinfarction angina pectoris may have beneficial effects on infarct size, left ventricular function and prognosis due to ischemic preconditioning.