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 6

Oropharyngeal leak pressures between devices.

Parameter	Oropharyngeal leak pressure (cm H2O)		value
	ProSeal LMA	I-gel
Neutral	28 ± 4.19	22 ± 3.23	<0.001
Flexion	32 ± 4.11	25 ± 3.64	<0.001
Extension	24 ± 4.00	19 ± 2.61	<0.001
Lateral rotation	28 ± 3.15	22 ± 2.74	<0.001

Data shown are mean ± SD. < 0.05 is considered significant.
The oropharyngeal leak pressures were significantly higher for ProSeal LMA compared with the I-gel in neutral, flexion, extension, and lateral rotation positions.