论文部分内容阅读
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。
In this paper, mitral regurgitation (MR) in patients with acute myocardial infarction (AMI) was observed by color Doppler echocardiography and its relationship with systolic murmur and cardiac function in precordial region was investigated. The results showed that the incidence of MR after AMI was 34%. The incidence of MR in lower wall infarction was higher than that in anterior wall infarction (41.7% and 25.9% respectively), but no significant difference (P> 0.05). 53.1% of patients with AMI complicated with MR had no pre-systolic murmur and those with killip’s score≥Ⅱ of left heart function were significantly more than those without MR (P <0.01). Diastolic mitral flow does not accurately reflect left ventricular diastolic function in patients with MR. This study shows that the emergence of MR is one of the important factors in patients with AMI complicated or worsening heart failure.