Table 3.
Comparison of the ventilation parameters between the LMA and ETI groups.
|
MV (L/minute) |
AP (cmH2O) |
|||
|---|---|---|---|---|
| Time point | LMA group (n = 40) | ETI group (n = 40) | LMA group (n = 40) | ETI group (n = 40) |
| Completion of intubation (t0) | 5.5 ± 0.8 | 5.6 ± 1.1 | 14.1 ± 2.0 | 14.6 ± 1.5 |
| 60 minutes after the start of surgery (t1) | 5.5 ± 1.0 | 5.6 ± 1.0 | 15.9 ± 2.7**,# | 14.8 ± 1.4 |
| At the end of surgery (t2) | 5.5 ± 1.0 | 5.6 ± 1.0 | 15.2 ± 2.4** | 15.1 ± 1.3** |
| Integral analysis: Two-wayrepeated measures ANOVA: F, p | ||||
| Comparison between groups | 0.060, 0.808 | 0.375, 0.542 | ||
| Time point comparison | 2.367, 0.111 | 43.979, <0.001 | ||
| Time-group interaction effect | 0.938, 0.373 | 26.439, <0.001 | ||
**p < 0.01 versus t0 (completion of intubation), #p < 0.05 versus group ETI.
LMA, laryngeal mask; ETI, endotracheal intubation; ANOVA, analysis of variance; AP, airway pressure; MV, minute ventilation.