急性心肌梗死后二尖瓣反流的超声与临床研究  

ULTRASONIC AND CLINICAL STUDY ON MITRAL REGURGITATION AFTER ACUTE MYOCARDIAL INFARCTION

作　　者：陶志刚[1] 姜进军[1] 孙培礼[1] 王洪敏[1] 刘少荣[1] 

机构地区：[1]山东省烟台毓璜顶医院

出　　处：《中国循环杂志》1995年第7期389-391,共3页Chinese Circulation Journal

摘　　要：本文采用彩色多普勒超声心动图对急性心肌梗死（ＡＭＩ）患者的二尖瓣反流（ＭＲ）进行了观察，研究其与心前区收缩期杂音及心功能的关系。结果显示，ＡＭＩ后ＭＲ的发生率为３４％，下壁梗死较前壁梗死ＭＲ发生率高（分别为４１．７％和２５．９％），但无显著差异（Ｐ＞０．０５）。并发ＭＲ的ＡＭＩ患者，５３．１％无心前区收缩期杂音，左心功能ｋｉｌｌｉｐ氏分级≥Ⅱ级者明显多于无ＭＲ组（Ｐ＜０．０１）。舒张期二尖瓣血流频谱不能正确反映ＭＲ患者的左室舒张功能。本研究表明，ＭＲ的出现是ＡＭＩ患者并发或加重心力衰竭的重要因素之一。To study the incidence of mitral regurgitation (MR) in patients with acute myocardial infarction (AMI) and the relationship between MR and systolic murmur in mitral area, MR and left ventricular function, pulsed and color Doppler echocardiographic examination was performed on 94 patients with AMI and 60 matched normal subjects. The results showed that the incidence of MR within 3 weeks after AMI was 34%. There were more MR in patients with inferior wall infarction than those with anterior wall infarction (41.7% and 25.9%,respectively), but with no significant difference (p>0.05). Systolic murmur in the mitral area was absent in 53.1% of patients with MR after AMI, especially in those with EF≤35%. The patients with MR after AMI had lower EF and worse left ventricular function than those without MR (p<0.01). EPV and Ei/Ti in patients with MR were significantly higher than those without MR (p<0.01 and P<0.05, respectively), but had no significant difference compared with normal subjects (p>0.05).Our study suggests that MR is an important factor to cause and aggravate heart failure in patients with AMI.

关 键 词：心肌梗塞 二尖瓣反流 超声波诊断 

分 类 号：R542.220.4[医药卫生—心血管疾病]