New Indicators of Myocardial Work in Healthy Individuals

Aim. To study in healthy individuals the gender and age characteristics of left ventricular (LV) myocardial work indicators, their correlations with global LV deformity indicators echocardiographic parameters characterizing systolic diastolic functions. Materials methods . 70 Healthy (n=70; 34 men 36 women; aged 39.3±8.9 years) were included study. The examination determined standard work: efficiency (GWE), constructive (GCW), wasted (GWW), index (GWI); as well myocardium deformation characteristics: longitudinal (GLS), radial (GRS) circular (GCS). Spearman's correlation coefficient was used to investigate relationship between parameters. A considered weak at r≤0.3, moderate 0.3<r<0.7, strong r≥0.7. Results. average value (GWE) 97% (96; 98), women – 98% (97; 98). Global (GCW) 2343.8±350.4 mm Hg%, 2362.2±343.8 Hg%. (GWW) 46 Hg% (27; 75), 44 (33; 55.5). (GWI) 2069.9±356.4 2055.7±339.9 No significant differences found comparative analysis performance indicators. that didn't have age. Ejection fraction moderately correlated GWI (r=0.45) GCW (r=0.49). strain strongly (r=0.77) (r=0.77). directly (r=0.4) (r=0.4). (r=0.35). negative GWE indicator post contraction (PSI) (r=-0.85). At same time, PSI GWW had a positive (r=0.85). Conclusion. Indicators do not differences. depends primarily on LV, while is by volume characteristics. number segments peak post-systolic period.