Table 4 LV and RV specific threshold values for the differentiation between healthy controls and stage A versus subclinical dysfunction and between asymptomatic and symptomatic heart failure
Parameters | Healthy or ‘at risk’ versus subclinical disease | Subclinical versus symptomatic disease | Clinically stable versus refractory heart failure |
|---|---|---|---|
LVEF (%) | 57% | 42% | 35% |
%normal LV myocardium | 76% | 46% | 14% |
MAPSE (mm) | 12 | 8 | 5 |
RVEF (%) | 58% | 48% | 32% |
%normal RV myocardium | 80% | 50% | 9% |
TAPSE (mm) | 23 | 19 | 15 |