Number | 31–34 | 44–50 | 56–59 | 57 | |
Heart weight (g) | 442 (16) | 461 (14) | 440 (10) | 466 (15) | 0.015 |
Left ventricle | | | | | |
Weight (g)5-151
| 193 (7.3) | 207 (8.4) | 190 (5.2) | 204 (8.7) | 0.074 |
Cavity area (cm2) | 11.0 (1.0) | 9.4 (1.0) | 7.7 (0.7) | 10.0 (0.9) | 0.054 |
Anterior wall (mm) | 16 (0.4) | 17 (0.5) | 17 (0.4) | 17 (0.4) | 0.10 |
Posterior wall (mm) | 16 (0.5) | 17 (0.6) | 17 (0.4) | 17 (0.4) | 0.47 |
Posterior wall to cavity area ratio (mm/cm2) | 2.0 (0.3) | 3.1 (0.5) | 5.2 (0.9) | 3.7 (0.8) | 0.036 |
Right ventricle | | | | | |
Weight (g)5-151
| 65 (3.3) | 67 (2.3) | 69 (3.2) | 66 (3.4) | 0.45 |
Cavity area (cm2) | 9.8 (0.8) | 8.9 (0.7) | 8.6 (0.6) | 10.8 (0.7) | 0.005 |