Anesthesiology Research and Practice / 2015 / Article / Tab 8

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 8

Ventilation parameters, airway parameters, and Brimacombe scores of the devices.

Ventilation parameters
ParameterProSeal LMAI-gel
NeutralFlexionExtensionLateral rotationNeutralFlexionExtensionLateral rotation

Delivered tidal volumes (mL)461 ± 68.72452 ± 100.75457 ± 66.28463 ± 66.26481 ± 48.69481 ± 52.67477 ± 50.69478 ± 49.63
Peak airway pressures (cm H2O)16 ± 2.5219 ± 6.0915 ± 2.8516 ± 2.5915 ± 2.9917 ± 5.2515 ± 3.3916 ± 3.24
EtCO2 (mm Hg)31 ± 2.3331 ± 1.9831 ± 2.2431 ± 2.0631 ± 2.2731 ± 2.0231 ± 2.1031 ± 2.07
LAW-PAW (cm H2O)11 ± 5.0212 ± 6.839 ± 5.1812 ± 4.276 ± 4.86*7 ± 6.23*3 ± 4.46*6 ± 4.77*
Ventilation score (3/2/1/0)30/0/0/029/0/0/130/0/0/030/0/0/030/0/0/029/1/0/030/0/0/030/0/0/0

Data shown are mean ± SD or numbers. < 0.05 is considered significant. * value < 0.01.
(LAW-PAW, compared with similar positions between I-gel and ProSeal LMA.) LAW-PAW was consistently better for ProSeal LMA than I-gel in all positions. Other parameters including peak airway pressures, tidal volume delivery, and ventilation scores were comparable between the two groups in all positions.