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Table 1

From: The pattern of breathing and chest wall movements at different levels of pressure support and PEEP

  5 cmH2O 10 cmH2O 15 cmH2O 25 cmH2O
RR (bpm) 27 ± 12* 25 ± 12* 19 ± 14 12 ± 6
VT (ml) 405 ± 153 474 ± 184 664 ± 25- 1043 ± 371-
RC/VT (%) 38 ± 13* 34 ± 13 33 ± 12- 32 ± 9
IA (ml/ml2) 13 ± 6 11 ± 9 9 ± 5 7 ± 4
Effects of PEEP levels
  5 cmH2O 10 cmH2O 15 cmH2O
RR (bpm) 27 ± 11 25 ± 12 27 ± 11
VT (ml) 423 ± 217 474 ± 184 454 ± 205
RC/VT (%) 36 ± 10 34 ± 10 41 ± 12
IA (ml/ml2) 10 ± 12 11 ± 9 11 ± 7
  1. *P < 0.05 vs PSV 25, -P < 0.05 vs PSV 5, -P < 0.05 vs others PSV levels.