Table 3 Sevoflurane concentration peaks during different ventilation maneuvers. PCV pressure controlled ventilation, VCV volume controlled ventilation, ppm parts per million, Min. minimal concentration, Max. maximal concentration, n.a. not applicable
From: Rebounds of sevoflurane concentration during simulated trigger-free pediatric and adult anesthesia
Maneuver | Sevoflurane concentration [ppm] | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
10 l⋅min− 1 | 18 l⋅min− 1 | |||||||||
Adult | Pediatric | Adult | Pediatric | |||||||
Min. | Max. | Min. | Max. | Min. | Max. | Min. | Max. | |||
PCV | Normal ventilation | 0 | 14.3 | 3.9 | 18.2 | 0 | 15.4 | 3.1 | 15.5 | |
Apnea | 1.2 | 1.4 | 7.3 | 8.5 | 1.7 | 2.3 | 3.2 | 4.7 | ||
Normal ventilation | 1.7 | 4.4 | 7.4 | 7.7 | 2.5 | 5.9 | 4.1 | 5.8 | ||
Recruitment | 0.1 | 1.2 | n.a. | 0.1 | 2.0 | n.a. | ||||
Decreased lung compliance | 1.2 | 3.0 | 7.2 | 9.0 | 2.3 | 3.5 | 4.6 | 5.2 | ||
Prolonged expiration | 1.1 | 3.2 | 4.0 | 7.2 | 1.2 | 3.3 | 3.2 | 6.0 | ||
VCV | Normal ventilation | 0.2 | 11.1 | 0.1 | 15.1 | 0 | 13.7 | 3.2 | 12.5 | |
Apnea | 1.2 | 1.7 | 3.8 | 4.3 | 1.3 | 1.6 | 3.3 | 4.3 | ||
Normal ventilation | 1.3 | 3.8 | 4.8 | 5.3 | 2.0 | 4.4 | 3.9 | 5,1 | ||
Recruitment | 0.1 | 0.1 | n.a. | 0.2 | 1,7 | n.a. | ||||
Decreased lung compliance | 1.5 | 2.1 | 4.2 | 5.4 | 1.5 | 2.1 | 3.9 | 4.5 | ||
Prolonged expiration | 1.1 | 2.0 | 3.7 | 4.3 | 1.3 | 1.8 | 3.0 | 3,8 | ||
Pressure support ventilation | 1.2 | 4.5 | 3.9 | 6.2 | 1.3 | 4.5 | 2.9 | 5.8 | ||
Manual ventilation | 0.2 | 5.0 | 0.2 | 7.3 | 0.1 | 4.0 | 0.1 | 5.7 | ||