Table 2.
Time of insertion, attemps and ventilation quality (tidal volumes, estimated leakage).
| LMA | Cobra | LT | FT | |
|---|---|---|---|---|
| Time to insertion | 23.8 ± 21.2 (17) [9-120] | 31.9 ± 27.9 (19) [9-120] | 21.9 ± 14.7 (15) [8-75] | 17.9 ± 14.6 (15) [8-120] |
| Success, n | 138 (97.1%) | 105 (95.8%) | 139 (98.6%) | 141 (100%) |
| Leakage, tidal volumes | ||||
| no, > 800 ml | 36 (25.5%) | 96 (68.1%) | 97 (68.8%) | 107 (75.9%) |
| minor, 500-800 ml | 101(71.6%) | 39 (27.7%) | 42 (29.8%) | 34 (24.1%) |
| major, < 500 ml | 4 (2.8%) | 6 (4.3%) | 2 (1.4%) | 0 |
| Attempts,% | ||||
| 1st/2nd/3rd | 80.9/14.9/4.3 | 66.7/22/11.3 | 71.6/21.3/7.1 | 92.9/7.1/0 |
Tidal volumes > 500 ml were quoted sufficient according the ILCOR guidelines. With all devices a tidal volume greater than 150 ml (estimated dead space) could be applied. Data are presented as mean +/- standard deviation, (median), [range] and number.