Table 2.
Echocardiographic Measurements by Diastolic LV Function Class
| Characteristic | Normal | Abnormal |
|---|---|---|
| Number in class | 538 | 173 |
| Conventional echocardiography | ||
| Left atrial volume, mL | 41.2±12.4 | 48.1±15.5 |
| Left atrial volume index, mL/m2 | 21.9±5.40 | 26.0±7.54 |
| Left ventricular mass, g | 166.8±44.9 | 194.6±56.8 |
| Left ventricular mass index, g/m2 | 88.8±19.1 | 104.5±25.5 |
| Doppler data | ||
| Deceleration time, ms | 160.2±31.0 | 190.2±44.0 |
| Isovolumetric relaxation time, ms | 94.4±14.0 | 107.2±18.6 |
| E peak, cm/s | 77.3±14.9 | 68.2±17.2 |
| A peak, cm/s | 59.1±13.9 | 82.3±15.7 |
| E/A ratio | 1.39±0.46 | 0.85±0.24 |
| e’ peak, cm/s | 12.6±3.26 | 7.80±1.95 |
| a’ peak, cm/s | 9.78±2.11 | 11.1±1.92 |
| e’/a’ ratio | 1.42±0.66 | 0.73±0.26 |
| E/e’ ratio | 6.38±1.35 | 9.13±2.74 |
Diastolic dysfunction includes an abnormally low age‐specific transmitral E/A ratio without increased LV filling pressures (E/e’ ≤8.5) or an elevated LV filling pressure (E/e’ >8.5) with normal or low age‐specific E/A (see references 4 and 5). By definition, all P values for the between‐group differences were significant. LV indicates left ventricular.