Höglund C, Alam M, Thorstrand C
Department of Medicine I, Karolinska Institute at Södersjukhuset (South Hospital), Stockholm, Sweden.
J Intern Med. 1989 Oct;226(4):251-6. doi: 10.1111/j.1365-2796.1989.tb01389.x.
The effects of acute myocardial infarction (MI) on the displacement of the left ventricular (LV) atrioventricular (AV) plane is presented. The material consisted of 40 patients with first-time Q-wave MI (26 pts with ant. MI and 14 with post. MI). Nineteen age-matched healthy subjects were used as controls. The displacement of the AV plane was determined at four sites corresponding to anterior (AV-A), septal (AV-S), posterior (AV-P) and lateral (AV-L) parts of the LV wall. In anterior and posterior MI all the sites showed significantly reduced AV-plane displacement compared to healthy subjects (P less than 0.001). Moreover, within the anterior MI group the AV-A and AV-S displacements were significantly reduced compared to the points AV-L and AV-P (P less than 0.001) and the AV-L displacement was reduced compared to AV-P (P less than 0.001). In posterior MI the displacement at AV-P was reduced compared to other points (P less than 0.001) and, to a certain extent, AV-S was reduced compared to the points AV-A and AV-L (P less than 0.001). The reduced magnitude of the AV plane displacement seems to be an expression of regionally reduced systolic function. The method described may provide a simple means of defining regional wall motion abnormalities of the LV following MI.
本文介绍了急性心肌梗死（MI）对左心室（LV）房室（AV）平面位移的影响。研究材料包括40例首次发生Q波心肌梗死的患者（26例前壁心肌梗死患者和14例后壁心肌梗死患者）。选取19例年龄匹配的健康受试者作为对照。在对应于左心室壁前壁（AV-A）、间隔（AV-S）、后壁（AV-P）和侧壁（AV-L）部分的四个部位测定房室平面的位移。与健康受试者相比，前壁和后壁心肌梗死患者所有部位的房室平面位移均显著降低（P<0.001）。此外，在前壁心肌梗死组中，与AV-L和AV-P点相比，AV-A和AV-S位移显著降低（P<0.001），与AV-P相比，AV-L位移降低（P<0.001）。在后壁心肌梗死中，与其他点相比，AV-P处的位移降低（P<0.001），并且在一定程度上，与AV-A和AV-L点相比，AV-S降低（P<0.001）。房室平面位移降低的幅度似乎是局部收缩功能降低的一种表现。所描述的方法可能为确定心肌梗死后左心室局部壁运动异常提供一种简单的手段。
