实时三维超声心动图评价心肌梗死后局部心功能  

Evaluation of regional function in patients with myocardial infarction by real-time three-dimensional echocardiography

作　　者：殷霞[1] 芦芳[1] 

机构地区：[1]山西医科大学第二附属医学院,山西太原030001

出　　处：《中国现代医药杂志》2014年第1期27-29,共3页Modern Medicine Journal of China

摘　　要：目的运用实时三维超声心动图(RT-3DE)评价陈旧性心梗患者心肌梗死后各节段局部心功能及其对整体心功能的影响。方法采用美国超声心动图学会推荐的17节段分段法,将病例组患者的所有心肌节段分为A组(梗死节段组)、B组(梗死邻近节段组)、C组(梗死远端节段组),将对照组患者的所有心肌节段分为与病例组相对应的三组A1组、B1组、C1组,采用RT-3DE测量每一节段局部射血分数(rEF)、局部收缩末容积(rESV)、局部舒张末容积(rEDV),节段局部心搏量及左室心搏量的比值(rgSVRatio)。结果与对照组各组相比较,病例A组、B组和C组的rEDV、rESV均增大,A、B组的rEF均降低,差异均具有统计学意义(P<0.05);C组的rEF变化不大,差异无统计学意义(P>0.05);与对照组各组相比较,A组的rgSVRatio降低,差异有统计学意义(P<0.05),B组的rgSVRatioC升高,但差异无统计学意义(P>0.05),C组的rgSVRatio增大。结论心梗发生后梗死节段和梗死邻近节段的局部心功能降低,而梗死远端节段局部心功能代偿性增强,因此可见梗死远端节段局部功能的相对增强为心梗患者整体心功能的维持起到了重要的作用。Objective To explore the regional function of the different segments and their contribution to the overall- heart function in the patients with myocardial infarction by real-time three-dime nsional echocardiography. Methods Accord- ing to 17 sub-division method, all myocardium segments of the patients with OM I were divided into group A （the infarction seg- ments） ,group B （the segments adjacent to the infarction area） and group C （the segments remote from the infraction area）, all myocardium segments of the normal patients were also divided into group A1 ,group B1 ,group C1. The regional end-diastolic volumes （rEDV）, regional end-systolic volumes （rESV）, regional fractions （rEF） and the ratio of regional stroke volume to global stroke volume （rgSVRatio） of the myoeardium segments in OMI patients and nor real patients were assessed by real-time three- dimensional echoeardiography. Results Compared with the myocardium segments of the normal patients, rEDV and rESV of group A,group B and group C enlarged（P〈0.05）, the rEF of the group A,group B decreased, it had significant difference（P〈0. 05）, but the rEF of group C had no significant differences （P〉0.05） ;the rgSVRat io of group A decreased, it had significant dif- ference（P〈0.05） ,the rgSVRatio of group B increased,but it had no significant diff erence（P〉0.05）. The rgSVRatio of group C in- creased. Conclusion The rEF of the infarction segments and the segments adja cent to the infarction area decrease, the rEF of the segments remote from the infraction area enlarge. The segments remote from the infraction area plays an important role in the overall function.

关 键 词：实时三维 心肌梗死 局部心功能 

分 类 号：R540.45[医药卫生—心血管疾病]