Table 2.
2D echocardiographic RA volume and function between HCM patients and normal subjects (mean ± SD)
| Variable | Values | P Value | |
|---|---|---|---|
| HCM(32) | Normal(34) | ||
| RAVmax (ml) | 34.19 ± 9.16 | 36.44 ± 7.70 | 0.282 |
| RAVpre (ml) | 22.94 ± 8.87 | 22.26 ± 5.01 | 0.704 |
| RAVmin (ml) | 13.66 ± 6.87 | 12.09 ± 4.11 | 0.261 |
| Total RAEV (ml) | 20.53 ± 5.14 | 24.35 ± 5.96 | 0.007 |
| Passive RAEV (ml) | 11.25 ± 4.54 | 14.18 ± 4.48 | 0.001 |
| Active RAEV (ml) | 9.28 ± 3.52 | 10.18 ± 3.01 | 0.270 |
| Total RAEF(%) | 61.15 ± 11.04 | 66.87 ± 9.06 | 0.024 |
| Passive RAEF(%) | 33.84 ± 13.06 | 38.68 ± 8.09 | 0.073 |
| Active RAEF(%) | 41.46 ± 10.31 | 46.29 ± 11.14 | 0.075 |
| RA expansion index(%) | 178.04 ± 78.18 | 224.25 ± 90.91 | 0.031 |
Abbreviations: RAVmax maximum RA volume, RAVpre precontraction RA volume, RAVmin minimum RA volume; Total RAEV total RA emptying volume, Active RAEV active RA emptying volume, Passive RAEV passive RA emptying volume; Total RAEF total RA emptying fraction; Active RAEF active RA emptying fraction, Passive RAEF passive RA emptying fraction