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Table 2 Performance of PEEP-new during the PEEP step change test in vivo

From: Control of positive end-expiratory pressure (PEEP) for small animal ventilators

PEEP target (cmH 2 O) PEEP (cmH 2 O) Overshoot (cmH 2 O) Settling time (s)
  Rat 1 Rat 2 Rat 3 Rat 1 Rat 2 Rat 3 Rat 1 Rat 2 Rat 3
9 9.0 9.0 9.0 - - - - - -
8 8.0 8.0 8.0 -0.1 -0.1 -0.1 5.1 5.1 6.1
7 7.0 7.0 7.0 -0.1 -0.1 -0.2 5.1 6.1 6.1
6 6.0 6.0 6.0 -0.1 -0.1 -0.2 6.1 5.1 5.1
5 5.0 5.0 5.0 -0.3 -0.2 -0.2 3.1 3.0 2.0
4 4.0 4.0 4.0 -0.2 -0.5 -0.2 3.1 3.0 4.1
3 3.0 3.0 3.0 -0.4 -0.2 -0.2 2.0 2.0 2.0
2 2.0 1.9 2.0 -0.2 -0.2 -1.8 2.0 2.0 2.0
1 0.8 0.8 1.0 -0.3 -0.2 -0.6 2.0 3.0 5.1
0 0.4 0.3 0.5 - - - - - -
1 0.8 0.9 1.0 0.1 0.1 1.1 0.0 1.0 6.1
2 1.9 1.9 1.9 0.1 0.1 1.0 2.0 2.0 3.0
3 3.0 2.9 3.0 0.3 0.2 0.4 2.0 1.0 1.0
4 4.0 3.9 4.0 0.2 0.2 0.4 3.1 2.0 2.0
5 5.0 5.0 5.0 0.3 0.1 0.3 3.1 2.0 4.1
6 6.0 6.0 6.0 0.1 0.1 1.8 6.1 5.1 7.1
7 7.0 7.0 7.0 0.1 0.1 0.2 4.1 4.1 10.2
8 8.0 8.0 8.0 0.1 0.1 0.5 5.1 4.1 8.1
9 9.0 9.0 9.0 0.1 0.2 0.2 4.1 4.1 5.1
  1. The PEEP step change temporal order follows the table rows. Overshoot and settling time are not reported for the first PEEP value, as well as for PEEP = 0 since at this condition the controller is not operating.