Table 3.
Deformation-based and myocardial work-derived parameters in AL, ATTR wild type, and control group
| Variable | AL group (n=10) | ATTRwt group (n=15) | Control group (n=25) |
|---|---|---|---|
| Deformation-based parameters | |||
| GLS (%) | 8.5±2.1 | 9.5±2.6 | 20.2±1.2*,# |
| EFSR | 5.6±1.3 | 5.1±1.0 | 3.0±0.1*,# |
| RRSR | 1.12±0.44 | 1.06±0.52 | 0.44±0.04*,# |
| Myocardial work parameters | |||
| GWI (mmHg%) | 751.3±425.6 | 795.0±257.6 | 2372.0±226.4*,# |
| GCW (mmHg%) | 845.0±406.6 | 964.9±270.5 | 2522.9±237.7*,# |
| GWW (mmHg%) | 128.1±86.2† | 79.7±34.6 | 92.2±26.9 |
| GWE (%) | 83.5±6.3† | 88.2±3.6 | 96.3±1.0*,# |
*Control group versus AL group; P<0.05, #Control group versus ATTR group; P<0.05, †AL group versus ATTR group; P<0.05. EFSR=Ejection fraction on strain ratio, GCW=Global constructive work, GLS=Global longitudinal strain, GWE=Global work efficiency, GWI=Global work index, GWW=Global wasted word, RRSR=Relative regional strain ratio, ATTRwt=ATTR wild type