. 2007 Mar 12;11(2):R36. doi: 10.1186/cc5719

Table 1.

Simulated and measured values at minimal tidal volume

Parameter	RR_HIGH		ASPIDS

	Simulated	Measured	Simulated	Measured at 30 min	Measured at 60 min
P_PLAT(cmH₂O)	30	32 ± 2.2*	30	26 ± 1.5**	26 ± 1.4**
PEEP_TOT(cmH₂O)	17 ± 1.8	18 ± 1.7*	21 ± 1.7	17 ± 2.1**	17 ± 2.2**
Paco₂(kPa)	6.0	5.7 ± 0.70 NS	6.0	5.8 ± 0.42 NS	5.7 ± 0.68 NS

Postinspiratory plateau pressure (P_PLAT), total positive end-expiratory pressure (PEEP_TOT) and arterial carbon dioxide tension (Paco₂) at lowest tidal volume found in simulation by increasing respiratory rate to high levels (RR_HIGH) and by using aspiration of dead space (ASPIDS) for 30 and 60 min. Values are expressed as means ± standard deviation. Differences between measured and simulated values: *P < 0.05, **P = 0.01. NS, not significant.