急性心肌梗死与颈动脉粥样硬化斑块关系的研究

目的探讨急性心肌梗死与颈动脉粥样硬化斑块的相关性。方法选择急性心肌梗死患者（AMI组）30例及非急性心肌梗死患者（对照组）28例进行颈动脉超声检查，并记录粥样硬化斑块（尤其是不稳定型斑块）的发生及超声特征情况。对两组病例的斑块发生率进行统计学分析。结果急性心肌梗死组颈动脉斑块发生率为83．33％，对照组为57．14％；两组颈动脉斑块均以混合斑最为多见，急性心肌梗死组为60．00％，对照组为32．14％；两组混合斑块及不稳定型斑块（混合斑＋软斑）所占比例急性心肌梗死组为70．00％，对照组为46．43％；两组三项指标比较差异均有统计学意义（P〈0．05或P〈0．01）。结论颈动脉粥样硬化斑块（尤其是不稳定型斑块）的存在与急性心肌梗死有明显的相关性，可作为预测急性心肌梗死的指标。

Relationship between acute myocardial infarction and carotid atherosclerotic plaques

Objective To investigate the relationship between carotid atherosclerotic plaques and acute myocardial infarction （AMI）, Methods 30 patients with AMI（observation group） and 28 patients without AMI（ control group） underwent carotid sonography and the atherosclerotic plaques were classified into stable and unstable plaques. The incidence rate of plaque was calculated and compared statistically. Results The incidence rate of plaque in observation group was significantly higher than that in control group （ P 〈 0. 05 ）. The incidence of unstable plaque was statistical different between the two groups （ P 〈 0.05）. Conclusion The presence of carotid atherosclerotic plaques is related with the coronary artery disease. The unstable plaque on carotid sonography correlates with myocardial infarction.