Table 4 Comparison of echocardiographic data between patients with limited exercise vs. preserved exercise capacity (6-min walk distance)
From: Quality of life questionnaire predicts poor exercise capacity only in HFpEF and not in HFrEF
Variable | 6MWT > 300 m | 6MWT <300 m | P value |
|---|---|---|---|
(n = 76) | (n = 42) | ||
LV EF (%) | 48 ± 15 | 45 ± 15 | 0.445 |
IVS (cm) | 1.12 ± 0.2 | 1.11 ± 0.1 | 0.986 |
LA diameter (cm) | 4.2 ± 0.7 | 4.7 ± 0.9 | 0.001 |
LV EDD (cm) | 5.7 ± 0.8 | 5.9 ± 1.1 | 0.271 |
LV ESD (cm) | 4.2 ± 1.1 | 4.5 ± 1.3 | 0.261 |
Lateral MAPSE (cm) | 1.3 ± 0.9 | 1.2 ± 1.1 | 0.786 |
Septal MAPSE (cm) | 1.0 ± 0.3 | 0.9 ± 0.3 | 0.037 |
TAPSE (cm) | 2.2 ± 2.3 | 2.1 ± 2.6 | 0.670 |
LV posterior wall (cm) | 1.1 ± 0.4 | 1.0 ± 0.1 | 0.913 |
E/A ratio | 1.0 ± 0.6 | 1.1 ± 0.8 | 0.325 |
FT (ms) | 431 ± 138 | 379 ± 105 | 0.027 |
IVRT (ms) | 132 ± 42 | 111 ± 34 | 0.028 |
PAAT (ms) | 114 ± 23 | 100 ± 22 | 0.005 |
E/e’ ratio | 10 ± 4.1 | 13 ± 8.0 | 0.020 |
Lareral e’ (cm/s) | 6.1 ± 2.5 | 6.0 ± 2.7 | 0.881 |
Lateral a’ (cm/s) | 8.2 ± 3.7 | 7.6 ± 3.5 | 0.393 |
Lateral s’ (cm/s) | 5.5 ± 1.5 | 4.9 ± 1.6 | 0.074 |
Septal e’ (cm/s) | 5.1 ± 2.2 | 4.6 ± 2.1 | 0.295 |
Septal a’ (cm/s) | 7.5 ± 2.4 | 6.4 ± 1.9 | 0.019 |
Septal s’ (cm/s) | 4.6 ± 1.6 | 4.0 ± 1.1 | 0.023 |
LA EF (%) | 49 ± 17 | 45 ± 16 | 0.313 |