Hemodynamic forces in olympic athletes assessed by cardiac magnetic resonance: a new non-invasive screening tool?

Abstract Funding Acknowledgements Type of funding sources: None. Background Non-invasive evaluation left ventricular hemodynamic forces (HDFs) by Cardiac Magnetic Resonance (CMR) is a promising tool to improve systolic and diastolic evaluation. No data are available on athletic population. Purpose To provide the range normal values HDFs in Olympic athletes evaluate possible influence different sport categories. Methods A group evaluated prior games with unremarkable cardiovascular pre-participation screening tests underwent CMR without contrast administration. sedentary subjects was enrolled as control group. Cine-images were post-processed feature-tracking based software estimate HDFs. measured apex-base (AB) latero-septal (LS) directions, over entire heartbeat, systole diastole. Athletes divided subgroups according ESC classification for comparison. They also ejection fraction (EF ≤ or >53%). Results 93 elite (33% power, 33% mixed, endurance) enrolled. AB LS direction 20.5%± 4.3 2.9%± 0.7 32.6% ± 7 3.6%± 1 systole, 11%± 4.1 2.3%± 0.8 Comparing category controls no significant differences found between groups (Table). (EF) £ 53% > 53%, former showed lower AB-HDFs assessed heartbeat (18.9 4.6 % vs 20.9 4.1; p= 0.024 29.6 6.3 33.3 7; 0.024, respectively), but within range. Conclusion We observed involved low-normal fraction,