Induction | Maintenance | Emergence | Recovery | Number | |
---|---|---|---|---|---|
IPPV, intermittent positive pressure ventilation; ETT, endotracheal tube; SR, spontaneous respiration; LM, laryngeal mask. | |||||
IPPV-ETT | 3 | 0 | 64 | 8 | 75 |
IPPV-Mask | 4 | 0 | 0 | 0 | 4 |
SR-Mask | 37 | 17 | 2 | 2 | 58 |
SR-LM | 22 | 11 | 6 | 0 | 39 |
SR-ETT | 1 | 0 | 1 | 1 | 3 |
Unknown | 2 | 2 | 2 | 4 | 10 |
Number | 69 | 30 | 75 | 15 | 189 |