Table 5.
Right atrial chamber echocardiographic parameters
| Parameters | Total | Total | Male | Female | P-value |
|---|---|---|---|---|---|
| Mean ± SD | 2 SD range | Mean ± SD | Mean ± SD | ||
| Apical four-chamber view | |||||
| RA minor axis, mm | 36.1 ± 5.6 | 27.5–46.0 | 38.4 ± 5.4 | 34.2 ± 5.1 | <0.001 |
| RA major axis, mm | 45.9 ± 5.4 | 38.0–54.5 | 48.1 ± 4.7 | 44.1 ± 5.3 | <0.001 |
| RA area, cm2 | 14.5 ± 3.2 | 9.6–20.4 | 16.1 ± 2.9 | 13.2 ± 2.9 | <0.001 |
| RA volume area-length, mL | 40.1 ± 14.7 | 20.0–68.6 | 46.9 ± 14.5 | 34.4 ± 12.4 | <0.001 |
| RA volume Simpson, mL | 37.5 ± 13.5 | 19.1–63.4 | 43.8 ± 13.4 | 32.5 ± 11.4 | <0.001 |
| Normalized to BSA | |||||
| Apical four-chamber view | |||||
| RA minor axis, mm/m2 | 20.0 ± 2.9 | 15.3–24.5 | 19.8 ± 2.8 | 20.2 ± 3.0 | 0.228 |
| RA major axis, mm/m2 | 25.5 ± 3.0 | 21.3–29.8 | 24.8 ± 2.5 | 26.1 ± 3.2 | <0.001 |
| RA area, cm2/m2 | 8.0 ± 1.5 | 5.6–10.4 | 8.3 ± 1.4 | 7.8 ± 1.6 | 0.003 |
| RA volume area-length, mL/m2 | 21.9 ± 7.1 | 12.3–35.2 | 24.1 ± 7.0 | 20.2 ± 6.7 | <0.001 |
| RA volume Simpson, mL/m2 | 20.6 ± 6.5 | 11.5–32.9 | 22.5 ± 6.5 | 19.0 ± 6.2 | <0.001 |
RA, right atrial.