Joscha Kandels, Stephan Stöbe, Robert Percy Marshall, Andreas Hagendorff, Michael Metze
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引用次数: 0
摘要
背景：通过斑点追踪超声心动图（STE）评估左心房应变（LAS）已被证明是量化左心房功能的有效方法，是左心室病变的早期标志。由于运动测试也是在跑步机上进行的，本研究旨在调查直立姿势对健康运动员 LAS 的影响：方法：50 名男性运动员（平均年龄 25.7 ± 7.3 岁）分别在直立位和左侧卧位接受了经胸超声心动图（TTE）检查。除常规超声心动图参数外，还通过 STE 评估了所有运动员在两种体位下的 LA 传导应变（LAScd）、收缩应变（LASct）、储能应变（LASr）和 LA 最大容积（LAVmax）：直立姿势与左侧卧位相比，LAScd（-14.0 ± 5.9% vs. -27.4 ± 7.1%；p < 0.001）、LASct（-4.6 ± 3.5% vs. -11.3 ± 4.1%；p < 0.001）、LASr（18.7 ± 7.6% vs. 38.7 ± 8.0%；p < 0.001）和 LAVmax（24.4 ± 8.8% vs. 50.0 ± 14.2%）差异显著：本研究的结果有助于了解运动员的心脏，在跑步机上对健康运动员进行超声心动图检查时必须考虑到这一点。
The Effect of Upright Posture on Left Atrial Strain in Competitive Athletes.
Background: Left atrial strain (LAS) assessment by speckle tracking echocardiography (STE) has been shown to be a remarkable means of quantifying LA function as an early marker of LV pathology. As exercise testing is also performed on a treadmill, the aim of this study was to investigate the effect of upright posture on LAS in healthy athletes.
Methods: Fifty male athletes (mean age 25.7 ± 7.3 years) underwent transthoracic echocardiography (TTE) in the upright and left lateral positions. In addition to the conventional echocardiographic parameters, in all athletes, LA conduction strain (LAScd), contraction strain (LASct), reservoir strain (LASr), and maximum LA volume (LAVmax) were assessed by STE in both positions.
Results: Comparing upright posture and the left lateral position, LAScd (-14.0 ± 5.9% vs. -27.4 ± 7.1%; p < 0.001), LASct (-4.6 ± 3.5% vs. -11.3 ± 4.1%; p < 0.001), LASr (18.7 ± 7.6% vs. 38.7 ± 8.0%; p < 0.001), and LAVmax (24.4 ± 8.8% vs. 50.0 ± 14.2%) differed significantly.
Conclusions: Upright posture has a significant effect on LA deformation, with decreased LAScd, LASct, and LASr. The results of this study contribute to the understanding of athletes' hearts and must be considered when performing echocardiography in healthy athletes on a treadmill.
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