Table 1 |
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|
Tidal lung and tidal oesophageal volume, airway and oesophageal peak pressure for the intubating laryngeal mask and laryngeal tube and both self inflating bags |
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|
Laryngeal tube/ |
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|
mask characteristics |
Peak Paw (cmH2O) |
Peak Poesoph (cmH2O) |
VT lung (ml) |
VT oesophagus (ml) |
|
|
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|
ILMA (before endotracheal intubation) |
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|
1100 ml bag |
18 ± 2 |
0 |
674 ± 27 |
0 |
|
1500 ml bag |
21 ± 2 |
0 |
790 ± 33* |
0 |
|
ILMA (after endotracheal intubation) |
||||
|
1100 ml bag |
25 ± 2* |
0 |
623 ± 26 |
0 |
|
1500 ml bag |
30 ± 3 |
0 |
741 ± 33* |
0 |
|
Laryngeal tube |
||||
|
1100 ml bag |
25 ± 2 |
0.1 ± 0.1 |
666 ± 31 |
0 |
|
1500 ml bag |
27 ± 2 |
0.4 ± 0.4 |
752 ± 46 |
0 |
|
|
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|
Data are expressed as mean ± standard error of the mean. Paw, airway pressure; Poesoph, oesophageal pressure; VT, tidal volume. *P < 0.05, versus 1100 ml self-inflating bag. |
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|
Dörges et al. Critical Care 2000 4:369 doi:10.1186/cc720 |
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