Table 2.
Changes of cerebral and spinal perfusion pressures during the four experimental phases (T1 to T4).
| T1 (baseline) |
T2 (IAP = 20 mmHg) |
T3 (IAP = 45 mmHg) |
T4 (desufflation) |
|||||
|---|---|---|---|---|---|---|---|---|
| MAP | 85.8 ± 9.62 | 79.8 ± 11.7 | 86.8 ± 15.73 | 84.6 ± 7.37 | ||||
| p | 0.186 (T1 vs. T2) | 0.297(T2 vs. T3) | 0.625 (T3 vs. T4) | |||||
| ICP | 18.7 ± 7.57 | 25.4 ± 7.79 | 26.8 ± 9.17 | 15.3 ± 3.65 | ||||
| p | <0.001 (T1 vs. T2) | 0.485 (T2 vs. T3) | <0.001 (T3 vs. T4) | |||||
| CPP | 67.1 ± 13.81 | 54.4 ± 9.77 | 60 ± 16.54 | 69.3 ± 8.38 | ||||
| p | 0.013 (T1 vs. T2) | 0.392 (T2 vs. T3) | 0.057 (T3 vs. T4) | |||||
| ISP | 13.2 ± 3.26 | 25.4 ± 8.36 | 22.3 ± 8 | 12.3 ± 3.86 | ||||
| p | 0.001 (T1 vs. T2) | 0.375 (T2 vs. T3) | 0.005 (T3 vs. T4) | |||||
| SPP | 72.6 ± 10.95 | 54.4 ± 10.6 | 64.5 ± 21.57 | 72.3 ± 7.42 | ||||
| p | 0.002 (T1 vs. T2) | 0.198 (T2 vs. T3) | 0.235 (T3 vs. T4) | |||||
CPP is calculated as mean arterial pressure (MAP) minus intracranial pressure (ICP), while SPP as MAP minus intraspinal pressure (ISP). All pressures are displayed as mean ± SD and expressed as mmHg. Statistical significances (p < 0.05) are marked with bold. IAP: intra-abdominal pressure.