First, an incision is created right below the jawline slightly off from midline. Dissection is bluntly carried right to the floor of the mouth under the tongue. The endotracheal tube is than grasped and pulled through this opening resulting in a submental intubation.
Seems quick and elegant with minimal bleeding... but I have some big issues with this procedure. There are multiple avoidable risks associated with this approach including:
1) Permanent lip paralysis. The nerve that innervates the lower lip crosses right through this region.
2) Chronic submandibular sialadenitis. The duct that carries spit from the submandibular gland (one of the major glands that produce spit) to the mouth can potentally be injured resulting in stenosis and chronic salivary gland inflammation if not infection.
3) Permanent numbness of the bottom of the mouth. The nerve that provides sensation to the region under the tongue crosses right through this area.
4) Permanent tongue paralysis. The nerve that allows for tongue movement crosses through this area.
Rather than a submental intubation, why not perform a tracheostomy or cricothyroidotomy. With either of these alternative procedures, the risks are minimal (there is no risk of nerve damage).
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