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Coeliac artery mean velocities.
| Period | Preoperative (cm/second) | Postoperative (cm/second) | P-value | ||
| (mean) | (SD) | (mean) | (SD) | ||
| Mid-position of diaphragm | 289.9 | ± 80.1 | 168.5 | ± 47.6 | 0.018 |
| Peak expiration | 285.9 | ± 123.6 | 178.3 | ± 53.7 | 0.285 |
| Peak inpiration | 199.0 | ± 110.6 | 150.6 | ± 41.5 | 0.833 |
