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首页> 外文期刊>European heart journal cardiovascular Imaging >Different impacts of acute myocardial infarction on left ventricular apical and basal rotation
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Different impacts of acute myocardial infarction on left ventricular apical and basal rotation

机译：急性心肌梗死对左心室根尖和基底旋转的不同影响

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Aims: The impacts of acute myocardial infarction (AMI) with different regional wall motion abnormalities on left ventricular (LV) rotation have not been well investigated. We assessed the impacts of AMI on LV rotational mechanics and to compare the alterations in basal and apical rotation between patients with anterior and inferior AMI. Methods and results: Thirty-five patients with anterior AMI and 31 patients with inferior AMI who had a single culprit lesion were analysed. Thirty age-matched subjects were included for controls. The apical and basal rotations were obtained and LV twist and torsion were measured by two-dimensional speckle tracking imaging. Compared with normal, LV twist was reduced in all AMI patients. The basal rotation was larger in anterior AMI than in inferior AMI and normal (-9.0 ± 2.6 vs. -3.4 ± 2.1° and -6.0 ± 1.9°, P < 0.001), although the apical rotation was lower in anterior AMI. As a result, LV twist and torsion were not different between anterior AMI and inferior AMI (17.0 ± 4.6 vs. 16.7 ± 3.3° and 2.08 ± 0.59 vs. 2.07 ± 0.44°/cm, P = NS, respectively), although LV ejection fraction was lower in anterior AMI. By multivariate analysis, LV torsion [odds ratio (OR) =0.13, 95% confidential interval (CI) = 0.02-0.75, P = 0.02] and basal rotation (OR = 0.67, 95% CI = 0.45-1.00, P = 0.05) were independently related to LV recovery in patients with anterior AMI and in patients with inferior AMI, respectively. Conclusion: Although LV twist and torsion were decreased either by reduced apical and basal rotation in AMI patients; the basal rotation was rather increased in anterior AMI. LV functional recovery can be predicted by LV torsion in anterior AMI and by basal rotation in inferior AMI. The basal rotation has often been ignored; however, our findings suggest that the basal rotation has an important role in LV function. Published on behalf of the European Society of Cardiology. All rights reserved.
机译：目的：尚未很好地研究具有不同区域壁运动异常的急性心肌梗塞（AMI）对左心室（LV）旋转的影响。我们评估了AMI对左室旋转力学的影响，并比较了前，下AMI患者的基底和根尖旋转的变化。方法和结果：分析了35例前AMI患者和31例下AMI患者，其均是一个罪魁祸首。包括三十名年龄匹配的受试者作为对照。获得了顶旋和基旋，并通过二维散斑跟踪成像测量了左心室扭转和扭转。与正常人相比，所有AMI患者的LV扭转均减少。尽管前AMI的根尖旋转较低，但前AMI的基底旋转比下AMI和正常AMI大（-9.0±2.6对-3.4±2.1°和-6.0±1.9°，P <0.001）。结果，尽管左心室射血后，前AMI和下AMI之间的LV扭转和扭转没有区别（分别为17.0±4.6 vs. 16.7±3.3°和2.08±0.59 vs. 2.07±0.44°/ cm，P = NS）。 AMI前的分数较低。通过多变量分析，左心室扭转[奇数比（OR）= 0.13，95％可信区间（CI）= 0.02-0.75，P = 0.02]和基础旋转（OR = 0.67，95％CI = 0.45-1.00，P = 0.05 ）分别与前AMI患者和下AMI患者的LV恢复独立相关。结论：尽管AMI患者的根尖和基底旋转减少，但左心室扭转和扭曲减少; AMI前部的基础旋转相当大。左前AMI中的LV扭转和下AMI中的基础旋转可预测LV功能恢复。基底旋转经常被忽略。然而，我们的研究结果表明，基础旋转在左室功能中起着重要作用。代表欧洲心脏病学会出版。版权所有。

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