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目的 :评价前壁及下壁急性心肌梗死 (AMI)左室局部收缩功能。方法 :于AMI发病后第三周应用门控平衡法核素心室显像检测两壁左室整体及局部射血分数 (LVEF、rEF) ,轴缩短率 (RS) ,局部轴缩短率 (rRS)。结果 :前壁组LVEF (31 5 3± 10 38% )显著低于下壁组(46 5 2± 8 6 5 % ) ,P <0 0 1;前壁组平均室壁运动积分 (1 86± 0 6分 )亦显著低于下壁组 (2 2 0± 0 6分 ) ,P <0 0 1。结论 :AMI急性期左室局部收缩功能和室壁运动状态均与梗死部位有关。前壁AMI左室收缩功能受损程度较下壁AMI更为显著。
AIM: To evaluate left ventricular regional systolic function in patients with anterior and inferior acute myocardial infarction (AMI). Methods: Left ventricular total and partial ejection fraction (LVEF, rEF), axial shortening (RS), axial shortening (rRS) and left ventricular ejection fraction . Results: LVEF in the anterior wall group was significantly lower than that in the inferior wall group (46 5 2 ± 8 65%, P 0 01), while the mean wall motion integral in the anterior wall group (1 86 ± 0 6) was also significantly lower than the lower wall group (220 ± 0 6 points), P <0.01. CONCLUSION: Left ventricular regional systolic function and ventricular wall motion are related to infarction in acute AMI. AMI left ventricular systolic function impairment than the lower wall AMI more significant.