New techniques such as single cord irradiation have been offered for sparing critical
perilaryngeal tumor-free structures (14, 16).
The I-gel (Intersurgical Ltd, Wokingham, Berkshire, UK) is a supraglottic airway device with an anatomically designed non-inflatable mask that snugly fts onto the
perilaryngeal framework.
It is designed to create a non-inflatable, anatomic seal of the pharyngeal, laryngeal and
perilaryngeal structures and avoid compression trauma.
Discomfort experienced by patients, sometimes even tenderness and pain within the
perilaryngeal structures prevent the production of voice.
Unexpected death in a horse with arytenoid chondritis and
perilaryngeal lesions.
This would place it in the category of a cuffed
perilaryngeal sealer like the cLMA (8).
The LMA and similar supraglottic airway devices use an inflatable cuff to wedge into the upper oesophagus and provide a
perilaryngeal seal.
A specific feature of the design of PLMA is the presence of a second cuff on the mask backplate, connected to the main
perilaryngeal cuff and aimed to increase oropharyngeal sealing by pushing the PLMA against the larynx from the posterior hypopharyngeal wall (Figure 1).
The new
perilaryngeal airway (CobraPLA) is as efficient as the laryngeal mask airway (LMA) but provides better airway sealing pressures.
[4] However, the cuff needs to be inflated to create a seal around the
perilaryngeal tissues.
I read with interest the recent article of Andrews and colleagues, comparing the Classic-LMA[TM] (LMA) to the Cobra
Perilaryngeal Airway[TM] (PLA) (1).
The I-Gel is designed to create a non-inflatable anatomical seal of the pharyngeal, laryngeal and
perilaryngeal structures while avoiding compression trauma.