Table 2.
Echocardiographic characteristics.
| Echocardiogram | All N = 301 | Apical HCM N = 80 | Septal HCM N = 221 | P-value |
|---|---|---|---|---|
| Maximal wall thickness, mm | 18 (5) | 16 (5) | 18 (5) | 0.05 |
| LVEF, % | 60 (0) | 60 (0) | 60 0) | 0.98 |
| Presence of SAM, n (%) | 221 | 3 (4) | 118 (54) | <0.001 |
| Any LVOT gradient, n (%) | 151 | 9 (11) | 142 (66) | <0.001 |
Continuous variables are presented as median (interquartile range, IQR) according to distribution.
HCM, hypertrophic cardiomyopathy; LVEF, left ventricular ejection fraction; SAM, systolic anterior movement; LVOT, left ventricular outflow tract.