Table 2.
Comparisons of the i-gel® and LMA SupremeTM during Insertion
| Variable | i-gel® (n = 19) | LMA-S (n = 19) | Difference of means (95% CI) | P value |
|---|---|---|---|---|
| Insertion time (s)* | 21.4 ± 6.8 | 29.3 ± 9.9 | −7.9 (−13.8, −1.9) | 0.011 |
| First attempt success (n [%]) | 18 (94.7) | 15 (78.9) | 15.8% (−7%, 38%) | 0.340 |
| Overall insertion success (n [%]) | 19 (100) | 16 (84.2) | 15.8% (−4%, 38%) | 0.230 |
| Ease of insertion† | NA | 0.014 | ||
| Grade 1 (n [%]) | 15 (78.9) | 7 (36.8) | ||
| Grade 2 (n [%]) | 3 (15.8) | 8 (42.1) | ||
| Grade 3 (n [%]) | 1 (5.3) | 4 (21.1) |
Values are numbers (%) or mean ± SD. LMA-S: LMA SupremeTM.
*
Insertion time was analyzed in cases of successful device insertion on first attempt (n = 18 for i-gel® and n = 15 for LMA-S).
†
Grade of ease of insertion: grade 1, success on first attempt without tactile resistance; grade 2, success on first attempt with tactile resistance; grade 3, success on second attempt or later with/without tactile resistance, NA: not applicable.