Table 4.
Echocardiography data
| HCM (n=51) | Control (n=25) | p value | |
|---|---|---|---|
| Left atrial volume indexed, ml/m2 |
51 ± 18 |
32 ± 10 |
<0.001 |
| Resting LVOT gradient, mm Hg |
26 ± 36 |
4 ± 1 |
<0.001 |
| Mitral E velocity, cm/s |
0.8 ± 0.2 |
0.7 ± 0.2 |
0.1 |
| Mitral A velocity, cm/s |
0.6 ± 0.3 |
0.6 ± 0.2 |
0.5 |
| E/A ratio |
1.4 ± 0.6 |
1.4 ± 0.5 |
0.7 |
| Deceleration time, ms |
217 ± 51 |
188 ± 36 |
<0.01 |
| Septal e’, cm/s |
6.0 ± 1.7 |
8.8 ± 3.0 |
<0.001 |
| Lateral e’, cm/s |
8.3 ± 2.6 |
12.0 ± 4.0 |
<0.001 |
| Mean e’, cm/s |
7.1 ± 1.9 |
10.4 ± 3.3 |
<0.001 |
| Septal E/e’ ratio |
14.4 ± 5.8 |
8.9 ± 3.2 |
<0.001 |
| Lateral E/e’ ratio |
10.6 ± 4.7 |
6.4 ± 1.9 |
<0.001 |
| Mean E/e’ ratio | 12.5 ± 4.9 | 7.7 ± 2.4 | <0.001 |
LVOT indicates left ventricular outflow tract.