Table 5.
Left atrial functional parameters in ATTR and AL.
| ATTR | AL | p-Value | |
|---|---|---|---|
| LA global longitudinal strain | |||
| Reservoir [%] | 7.9 ± 5.9 | 8.7 ± 4.6 | 0.637 |
| Conduit [%] | 5.5 ± 2.9 | 5.5 ± 4.6 | 0.988 |
| Booster [%] | 2.5 ± 4.9 | 3.2 ± 4.1 | 0.585 |
| LA global strain rate | |||
| Reservoir [%] | 0.5 ± 0.5 | 0.5 ± 0.3 | 0.697 |
| Conduit [%] | −0.3 ± 0.3 | −0.5 ± 0.2 | 0.051 |
| Booster [%] | −0.4 ± 0.4 | −0.6 ± 0.4 | 0.104 |
| LA function biplanar | |||
| LA volume at LVED | 86.6 ± 37 | 79.8 ± 32.0 | 0.233 |
| LA volume at LVES | 104.8 ± 39.9 | 102.0 ± 35.8 | 0.354 |
| LA minimum volume | 83.9 ± 35.3 | 43.6 ± 17.7 | 0.597 |
| LA maximum volume | 106.3 ± 40.1 | 103.7 ± 36.4 | 0.856 |
| LA-EF | 20.1 ± 10.9 | 26.2 ± 13.4 | 0.421 |
| LA area at LVED (4CH) | 23.7 ± 6.2 | 22.9 ± 6.1 | 0.139 |
| LA area at LVES (4 CH) | 27.7 ± 6.2 | 27.8 ± 6.3 | 0.163 |
LA: left atrial; ATTR: transthyretin amyloidosis; AL: light chain amyloidosis; LVED: left ventricular end diastole; LVES: left ventricular end systole; CH: chamber.