Anesthesiology Research and Practice / 2015 / Article / Tab 4

Clinical Study

Influence of Head and Neck Position on Oropharyngeal Leak Pressure and Cuff Position with the ProSeal Laryngeal Mask Airway and the I-Gel: A Randomized Clinical Trial

Table 4

Oropharyngeal leak pressures and ventilation with I-gel.

ParameterNeutralFlexionExtensionLateral rotation

Oropharyngeal leak pressures (LAW) (cm H2O)22 ± 3.2325 ± 3.64*19 ± 2.61#22 ± 2.74
Ventilation score (3/2/1/0)30/0/0/030/0/0/029/1/0/030/0/0/0
Peak airway pressures (cm H2O)15 ± 2.9917 ± 5.2515 ± 3.3916 ± 3.24
Expiratory tidal volume (mL)481 ± 48.69481 ± 52.67477 ± 50.69478 ± 49.63
LAW-PAW (cm H2O)6 ± 4.867 ± 6.233 ± 4.46®6 ± 4.77
EtCO2 (mm Hg)31 ± 2.2731 ± 2.0231 ± 2.1031 ± 2.07

Data shown are mean ± SD or numbers. value is in comparison with the neutral position.
* < 0.001 between neutral and flexion, # < 0.001 between neutral and extension.
< 0.001 between neutral and flexion, ® < 0.001 between neutral and extension.