| 500 ml self-inflating bag | 1.6 l self-inflating bag | Mapleson C circuit | P value |
---|---|---|---|---|
Minute ventilation (l/minute) | 7.01 (3.22) | 9.68 (4.22) | 9.77 (3.45) | 0.003* |
Tidal volume (nl) | 391 (51.5) | 582 (86.7) | 625 (103) | < 0.001* |
Respiratory rate (/minute) | 16.7 (6.9) | 18 (6.45) | 17.3 (5.46) | 0.704†|
Peak airway pressure (cmH2O) | 14.5 (5.18) | 20.7 (9.03) | 30.3 (11.4) | < 0.001* |