Table 1 Adult Experimental protocol: The timeline reads from top to bottom. APL adjustable pressure limiting valve, FGF fresh gas flow, MV manual ventilation, VT tidal volume, PEEP positive endexpiratory pressure, RR respiratory rate, I:E inspiratory:expiratory ratio, Tinsp inspiratory time, PCV pressure controlled ventilation, PSV pressure support ventilation, VCV volume controlled ventilation
From: Rebounds of sevoflurane concentration during simulated trigger-free pediatric and adult anesthesia
Maneuver | Time (min) | Machine mode | APL (mbar) | VT (ml) | PEEP (mbar) | RR (1⋅min− 1) | Tinsp (sec.) | I:E | |
|---|---|---|---|---|---|---|---|---|---|
PCV | Waiting for patient | 15 | Spont | 0 | 0 | 0 | 0 | - | - |
Normal ventilation | 10 | PCV | 0 | 500 | 5 | 12 | 1.7 | 1:1.9 | |
Apnea | 2 | Spont | 0 | 0 | 0 | 0 | - | - | |
Normal ventilation | 2 | PCV | 0 | 500 | 5 | 12 | 1.7 | 1:1.9 | |
Recruitment | 0.5 | MV | 30 | 1500 | 0 | 0 | 30 | - | |
Decreased lung compliance | 3 | PCV | 0 | 200 | 5 | 12 | 1.7 | 1:1.9 | |
prolonged expiration | 3 | PCV | 0 | 500 | 5 | 12 | 1.2 | 1:3.2 | |
VCV | Waiting for patient | 15 | Spont | 0 | 0 | 0 | 0 | - | - |
Normal ventilation | 10 | VCV | 0 | 500 | 5 | 12 | 1.7 | 1:1.9 | |
Apnea | 2 | Spont | 0 | 0 | 5 | 0 | 0 | - | |
Normal ventilation | 2 | VCV | 0 | 500 | 0 | 12 | 1.7 | 1:1.9 | |
Recruitment | 0.5 | MV | 30 | 1500 | 5 | 0 | 30 | - | |
Decreased lung compliance | 3 | VCV | 0 | 250 | 5 | 12 | 1.7 | 1:1.9 | |
Prolonged expiration | 3 | VCV | 0 | 500 | 5 | 12 | 1.2 | 1:3.2 | |
Pressure support ventilation | 5 | PS | 0 | 250 | 5 | 3 | 2.0 | - | |
Manual ventilation | 2 | MV | 12 | 500 | 0 | 12 | 1.7 | 1:1.9 |