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Table 1 Respiratory parameters

From: Effects of sigh during pressure control and pressure support ventilation in pulmonary and extrapulmonary mild acute lung injury

   ALIp ALIexp
   PCV PSV PCV PSV
   NS Sigh NS Sigh NS Sigh NS Sigh
VT (ml) Baseline-PEEP 1.9 ± 0.3 1.9 ± 0.3 2.0 ± 0.2 2.1 ± 0.3 1.9 ± 0.2 2.0 ± 0.2 2.0 ± 0.2 2.1 ± 0.3
End 2.0 ± 0.3 2.1 ± 0.2 2.0 ± 0.3 2.1 ± 0.4 2.0 ± 0.2 1.9 ± 0.2 2.0 ± 0.2 2.2 ± 0.3
RR (bpm) Baseline-PEEP 76.3 ± 4.5 76.4 ± 3.7 65.9 ± 10.3 57.6 ± 11.1** 75.8 ± 3.4 78.1 ± 2.3 60.8 ± 18.1 59.8 ± 17.2**
End 77.3 ± 3.8 76.5 ± 3.7 63.6 ± 8.8 46.3 ± 11.5**# 74.1 ± 4.3 78.1 ± 2.3 67.2 ± 14.9 47.3 ± 18.2**,#
Ppeak,L (cmH20) Baseline-PEEP 13.2 ± 2.1 12.1 ± 0.7 17.1 ± 2.4 16.5 ± 6.5** 10.7 ± 1.7 12.6 ± 0.7 16.0 ± 1.2* 14.4 ± 3.8
End 13.2 ± 2.3 9.2 ± 0.7*,† 14.8 ± 2.8 11.0 ± 1.0#† 12.3 ± 2.7 10.0 ± 1.5 14.8 ± 1.6 12.4 ± 3.3
Pmean,L (cmH20) Baseline-PEEP 8.1 ± 0.9 7.7 ± 0.5 7.8 ± 0.7 7.9 ± 0.8 7.2 ± 0.7 7.9 ± 0.3 7.1 ± 0.8 7.4 ± 1.3
End 8.2 ± 1.0 6.6 ± 0.3*,† 7.4 ± 0.7 6.2 ± 0.3#† 7.6 ± 1.1 6.7 ± 0.4 7.2 ± 0.4 6.5 ± 0.9
P0.1 Baseline-PEEP - - 4.2 ± 2.7 4.6 ± 2.1 - - 4.2 ± 1.1 2.2 ± 0.4
End - - 2.9 ± 2.2 1.3 ± 0.9 - - 3.9 ± 0.2 1.3 ± 0.5†#
  1. Values are mean + standard deviation (SD) of six rats in each group. †Significantly different from Baseline-PEEP (P <0.05); *significantly different from PCV-NS (P <0.05); **significantly different from PCV-Sigh (P <0.05); #significantly different from PSV-NS (P <0.05). VT, tidal volume; RR, respiratory rate; Ppeak,L, transpulmonary peak pressure; Pmean,L, transpulmonary mean pressure; P0.1, driving pressure; PEEP, positive-end expiratory pressure; NS, non-Sigh.