Abstract 747: Normal Values of Left Ventricular Parameters in Elite Athletes by 3D Echocardiography
Background: Aim of our study was to assess the normal values of left ventricular (LV) remodelling, as assessed by three-dimensional echocardiography (3DE) in a large population of elite competitive athletes.
Methods: a population of 426 elite athletes engaged in different sports disciplines (41 skill, 100 strength, 127 combined and 158 endurance) and 62 sedentary controls underwent 3DE for assessment of LV end-diastolic volume (EDV), systolic volume (ESV), mass (LVM), which were normalized to body surface area, and ejection fraction (EF).
Results: EDV was larger in athletes engaged in strength (77±14 ml/m2; p<0.001), combined (77±11 ml/m2; p<0.001) and endurance (91±13 ml/m2; p<0.001), but not in skill (70±11 ml/m2) disciplines compared to controls (63±11 ml/m2). Also, ESV was larger in strength (29±7 ml/m2; p<0.001), combined (29±6 ml/m2; p<0.001) and endurance (35±7 ml/m2; p<0.001), but not in skill (26±6 ml/m2) disciplines compared to controls (23±5 ml/m2). LVM was significantly greater in strength (78±13 g/m2; p<0.001), combined (79±11 g/m2; p<0.001) and endurance (91±14 g/m2; p<0.001) but not in skill disciplines (69±10 g/m2) compared to controls (61±10 g/m2). No significant differences were identified for EF between skill (63±5%; p<0.001), strength (63±9%; p±0.001), combined (62±5%; p<0.001), endurance disciplines (62±5%; p<0.001) and controls (63±5%). Sport-discipline-specific 5th to 95th percentiles of LV 3DE parameters are reported in table 1⇓.
Conclusion: LV remodelling as assessed by 3D is related to type of sport participated, with endurance athletes showing the most marked increase in EDV, ESV and LV Mass instead, no significant LV morphologic changes were observed in skill athletes. Regardless the extent of LV remodelling, the systolic function remained within normal limits in all athletes.