Summary of arterial blood gas data at baseline, at the time of valve deployment or in the postanaesthesia care unit (PACU)
| PaCO2-baseline | PaCO2-ValveDepl | PaCO2-PACU | |
| Mean±SD | 42.5±6.5 | 54.6±10.6* | 43.8±6.7†‡ |
| Range | 27–68 | 30–100 | 30–68 |
| pH-baseline | pH-ValveDepl | pH-PACU | |
| Mean±SD | 7.41±0.05 | 7.31±0.06* | 7.37±0.04*‡ |
| Range | 7.27–7.52 | 7.15–7.52 | 7.23–7.52 |
| PaO2-baseline | PaO2-ValveDepl | PaO2-PACU | |
| Mean±SD | 204.0±101.95 | 260.5±111.6* | 145.8±73.1*‡ |
| Range | (42–469) | (69–605) | (39–358) |
*P<0.0001 compared with baseline.
†P<0.01 compared with baseline.
‡P<0.0001 compared with ValveDepl.
PaCO2, arterial partial pressure of carbon dioxide; PaO2, arterial partial pressure of oxygen; ValveDepl, valve deployment.