Table 1.
The Echocardiographic Characteristics of SCD Patients.
| Echocardiographic measurement | No. of Patients | Value | Z-score | P * | Abnormal (%) |
|---|---|---|---|---|---|
| Left atrial volume index (ml/m2) | 123 | 33.7± 9.9 | 3.1± 2.5 | 0.002 | 76 (62) |
| Left atrial diameter (cm) | 134 | 3.29 ± 0.57 | 2.19 ±1.1 | 0.02 | 77 (57)† |
| Right ventricular diameter (cm) | 134 | 1.90 ± 0.48 | −0.32 ±0.98 | 0.76 | 0 (0)† |
| Interventricular septal diameter (cm) | 134 | 0.79 ± 0.17 | 0.66 ±0.89 | 0.51 | 7 (5)† |
| Left ventricular end-diastolic dimension (cm) | 134 | 4.75 ± 0.64 | 0.79 ±1.15 | 0.43 | 19 (14)† |
| Posterior wall thickness (cm) | 134 | 0.78 ± 0.17 | 1.13 ±1 | 0.26 | 0 (0)† |
| Shortening fraction (%) | 134 | 37.6 ± 4.7 | 0.14 ±1.14 | 0.89 | 6 (4)‡ |
| Indexed left ventricular mass (g/m2.7) | 134 | 44.1 ± 12.3 | N/A | N/A | 77 (57)§ |
| Tricuspid regurgitant jet velocity (m/sec) | 96 | 2.16 ±0.3 | N/A | N/A | 13 (14)II |
N/A: not applicable.
Values expressed as mean ± SD
*
P value for average z-score (comparison to normal)
†
Number (percentage) of patients with z-score value>1.96
‡
Number (percentage) of patients with shortening fraction values <29%
§
Number (percentage) of patients with LVMi values >95th percentile for gender and age.
II
Number (percentage) of patients with TRV >2.5m/sec.