Evaluating the Optimal Operating Table Height for ProSeal-LMA™ Insertion
Table 3
Comparing different operating table height positions in determining successful first attempt P-LMATM insertion and its related individual positional and performance test.
U (n = 46)
R (n = 46)
X (n = 46)
value
value#
First attempt P-LMA™ insertion
24 (52.2)
37 (80.4)
22 (47.8)
0.002
U vs. R: 0.004
U vs. X: 0.677
R vs. X: 0.001
Gastric tube “bubble” test
44 (95.7)
43 (93.5)
39 (84.8)
0.236
U vs. R: 1.000
U vs. X: 0.158
R vs. X: 0.180
Suprasternal notch test
31 (67.4)
38 (82.6)
26 (56.5)
0.025
U vs. R: 0.092
U vs. X: 0.283
R vs. X: 0.007
Gastric tube insertion test
39 (84.8)
42 (91.3)
32 (69.6)
0.021
U vs. R: 0.335
U vs. X: 0.082
R vs. X: 0.009
Peak airway pressure test (≥25 cm H2O)
27 (58.7)
37 (80.4)
25 (54.3)
0.020
U vs. R: 0.023
U vs. X: 0.674
R vs. X: 0.008
No audible leak
40 (87.0)
43 (93.5)
36 (78.3)
0.105
U vs. R: 0.485
U vs. X: 0.271
R vs. X: 0.036
Data were presented as number of patients (percentage). value < 0.05 denotes statistical significance. # value < 0.0167 denotes statistical significance with Bonferroni correction.
