scholarly journals Left Ventricular Torsional and Longitudinal Function by Speckle-Tracking Echocardiography in a Large Cohort of Professional Soccer Players

2012 ◽  
Vol 21 ◽  
pp. S213-S214
Author(s):  
T. von Lueder ◽  
A. Hodt ◽  
G. Gjerdalen ◽  
T. Andersen ◽  
E. Solberg ◽  
...  
2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
M J Nobre De Matos Pereira Vieira ◽  
D Ribeiro ◽  
N Craveiro ◽  
R Teixeira ◽  
L Pitta ◽  
...  

Abstract Background 2D-speckle tracking echocardiography (2D-STE) derived strain measurements has been proposed as a non-invasive measure of myocardial deformation and function. However, the effects of left ventricular (LV) loading conditions on 2D-STE derived LV longitudinal strain (GLS) have not been totally elucidated and the results of some studies regarding the load dependency of GLS are controversial. Purpose To characterize the effects of acute load change (preload increase) on LV GLS. Methods and results We evaluated the variation of LV GLS by 2D-STE, in response to a preload increasing maneuver (leg lifting maneuver – LLM), in a population of 30 healthy individuals. Clinical, demographic and echocardiographic parameters (including LV longitudinal mechanics obtained with 2D-STE before and after LLM) were described. The population had a mean age of 27±4 years and 73% were women. Increased preload to the heart with LLM was confirmed by an increase in the maximal diameter of the inferior vena cava (16±3.5 vs 22±3.3 mm, p<0.01). No significant changes in left atrial volume, LV ejection volume and LV ejection fraction were observed in response to the LLM. There was a significant variation of global LV GLS (−21.9±2.3 vs −23.2±1.6%, p<0.001, Δ 1.25%, 95% CI 0.5–1.91) – figure. An increase in right ventricular longitudinal function with LLM (TAPSE 22.5±5.4 vs 25.5±0.5 mm, p=0.005, Δ 2.9, 95% CI 0.9–4.8) was also observed. Conclusion To our knowledge this is the first study performed to assess the effect of preload increase in GLS using the LLM in healthy individuals. In this study, the absolute LV GLS value increased significantly in response to preload increase (LLM). The dependence of GLS on preload is in accordance with the Frank-Starling Law, in which an increase in preload in a healthy individual lead to an increase in myocardial contractility. These findings suggest that LV GLS is a sensitive parameter for detecting subtle changes in LV longitudinal function.


2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
F A Castro ◽  
M Lourenco ◽  
P V A Leite ◽  
O Azevedo ◽  
G Dias ◽  
...  

Abstract Introduction Athlete´s heart is associated with physiological remodelling as a consequence of repetitive cardiac loading. Atrial dilation may occur in athletes, but atrial size is insufficient to provide mechanistic information about the atrium itself and an increase in atrial size is not intrinsically an expression of atrial dysfunction. Two dimensional (2D) LA strain analysis by speckle tracking emerges as a gold standard for evaluation of atrial myocardial function. Aim To compare LA function between elite soccer players and sedentary healthy controls through 2D-strain analysis by speckle tracking. Methods We included 44 consecutive male professional soccer players and 25 sedentary male healthy controls, matched by age and race. All subjects underwent transthoracic echocardiogram, including evaluation of LA diameter and volume and 2D-strain analysis by speckle tracking. Peak atrial longitudinal strain (PALS) was measured at the end of the reservoir phase and peak atrial contraction strain (PACS) was measured just before the start of the active atrial contractile phase. The average of PALS and PACS was obtained from the 12 LA segments at apical 4 and 2-chamber views. The LA contraction strain index (CSI) (ratio PACS/PALS x100) was also calculated. SPSS 20.0 was used for statistical analysis. Results Mean age was similar between athletes and controls (22.3 ± 4.2 vs 25.0 ± 2.4 p = 0.13) as well as body mass index (23.3 ± 5.8 vs 24.6 ± 2.7 Kg/m2, p = 0.24). Athletes had significantly higher LA volume (29.1 ± 6.9 vs. 21.1 ± 5.5, p &lt; 0.001). No statistical differences were observed in LA diameter between the two groups (18.7 ± 2 vs 18.0 ±1.7, p = 0.163). Athletes had significantly lower PALS (36.3%±5.8 vs. 44.2%±8.9, p &lt; 0.001), PACS (9.5%±2.8 vs 15.3%±4.8, p &lt; 0.001) and LA CSI (26.3 ± 7.8 vs. 35.0 ± 9.3, p &lt; 0.001) than controls. LA volume was correlated with PALS (p &lt; 0.001 r = 0.99), but not with PACS or CSI (p = 0.089 and p = 0.142, respectively). Conclusion This study showed that in top-level athletes LA PALS and PACS are lower and PALS correlates with LA volume, suggesting that LA suffers not only a morphological but also a functional remodelling in response to intensive exercise. This can be mediated by increased LA workload imposed by the increased left ventricular work.


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