Abstract 1964: Determination of Right Ventricular Changes in Elite Athletes Along with Left Ventricular Remodelling
Purpose: Athlete’s heart is associated with morphologic and physiologic changes due to intense physical training. Echocardiographic studies have already described adaptations of the left ventricle in endurance athletes, but only a few studies have described right ventricular adaptation. The aim of this study was to assess the changes in right ventricle (RV) and its relationship with left ventricular remodelling in older elite athletes.
Methods: We examined the echocardiographic (Sonos 7500) characteristics of 48 elite athletes, including Tissue Doppler Imaging (TDI) and Integrated Backscatter (IBS) parameters. Besides standard transtoracic echocardiographic measurements, resting ejection fractions, left ventricular diastolic functions and left atrial volumes were calculated.
Results: In our study population 22 athletes were >55 years old. Mean left ventricle mass index was calculated as 114.5 g/m2. We found concentric left ventricular hypertrophy in 26 athletes. Age was found to be the major risk factor for diastolic dysfunction determined from lateral annulus TDI velocities (r:0.385, p<0.001). RV long-axis dimensions were significantly associated with left atrial volumes (r:0.453, p<0.001) and left ventricular masses (r:0.307, p<0.05). RV long-axis diastolic diameters were found correlated with RV TDI E-wave (r:−0.285, p<0.05) and RV long-axis average and peak IBS velocities (r:0.368, p<0.05 and r:0.348, p<0.05).
Conclusions: This study was designed to evaluate RV adaptations in elite athletes. Increased average RV long-axis IBS velocities indicate increased left ventricular mass and left atrial volume as a result of RV remodelling along with left ventricular remodelling. These data suggest that, RV TDI E-wave and average RV IBS velocities reflect cardiac adaptations of both right ventricle and left ventricle in elite athletes.