Table 1.
Perioperative Characteristics
| Parametera,b | Flat Ring (n = 4) |
Saddle Ring (n = 4) |
|---|---|---|
| Body weight, kg | 58.8 ± 6.8 | 58.5 ± 10.8 |
| Heart weight, g | 339.5 ± 6.8 | 366.8 ± 49.3 |
| Infarction area, % | 28.5 ± 8.7 | 22.1 ± 4.2 |
| Preoperative EF, % | 26.3 ± 2.5 | 27.5 ± 2.9 |
| Preoperative IMR grade | 3.3 ± 1.0 | 3.0 ± 1.0 |
| CPB time, min | 188.5 ± 78.4 | 169.7 ± 45.5 |
| ACC time, min | 100.0 ± 30.6 | 113.0 ± 19.7 |
| Postoperative IMR grade | 0.5 ± 1.0 | 0.0 ± 0.0 |
a
Data are presented as mean ± standard deviation.
b
No significant between-group differences (p > 0.05).
ACC = aortic-cross-clamp; CPB = cardiopulmonary bypass; EF = ejection fraction; IMR = ischemic mitral regurgitation.