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目的探讨糖尿病合并急性心肌梗死患者的临床特点。方法以我院心内科2008年1月～2012年12月收治的糖尿病合并急性心肌梗死患者42例为研究组，以同期收治的非糖尿病合并急性心肌梗死患者41例为研究组，比较2组的临床特点。结果研究组胸痛的发生率低于对照组，其心力衰竭发生率高于对照组，差异均具有统计学意义；2组心律失常及休克发生率的差异没有统计学意义；研究组冠脉多支病变发生率高于对照组，差异具有统计学意义；研究组死亡率高于对照组，差异具有统计学意义。结论糖尿病合并急性心肌梗死症状不典型，病情重，死亡率高，只有充分了解该疾病的临床特点，加强监测病情，及时发现并处理各种并发症，才能提高患者疗效。“,” Objective:To investigate the clinical features of the diabetes mel itus complicated with acute myocardial infarction. Methods:42 cases of diabetes mel itus complicated with acute myocardial infarction from January in 2008 to December in 2012 were the study group in our hospital.41 cases of acute myocardial infarction without diabetes mel itus were the control group at the same time in our hospital.To compare the clinical features between 2 groups.Results:The incidence rate of chest pain in the study group was lower than that in the the control group.The difference was statistical y significant.The incidence rate of heart failure in the study group was higher than that in the control group.The difference was statistical y significant.The difference in the incidence rate of arrhythmia and shock had not statistical y significant in 2 groups.The incidence rate of multiple coronary vessel disease in the study group was higher than that in the the control group.The difference was statistical y significant.The mortality rate in the study group was higher than that in the the control group.The difference was statistical y significant.Conclusion:The diabetes mel itus complicated with acute myocardial infarction had atypical clinical symptoms,severe il ness and high mortality rate.It can improve the effect that we ful y understand the clinical features,strengthen to monitor the disease and timely detect and treat the complications.