What is a ProSeal LMA?
The LMA-ProSeal™ is a new laryngeal mask airway with a rear cuff and drainage tube that allows a higher seal pressure than the LMA-Classic™ for the same intra-cuff pressure, and it permits drainage of gastric secretions and access to the alimentary tract.
Can you suction through an LMA?
Apart from the possibility of aspiration, effective oxygenation and ventilation may become difficult, particularly in the lithotomy position. We agree with Asai that pulmonary aspiration with the use of LMA is under-reported.
Who designed ProSeal LMA?
The ProSeal LMA was introduced by Dr. Archie Brain in 2000. [4] ProSeal LMA has a gastric drainage tube, placed lateral to the main airway tube.
Where is the LMA placed?
A laryngeal mask airway (LMA) is a device inserted into the area behind the mouth and nose, connecting them to the food pipe (the pharynx) to allow ventilation, oxygenation, and administration of anesthetic gases, without the need for inserting a tube in the windpipe (endotracheal intubation).
Where does the LMA sit?
The LMA is shaped like a large endotracheal tube on the proximal end that connects to an elliptical mask on the distal end. It is designed to sit in the patient’s hypopharynx and cover the supraglottic structures, thereby allowing relative isolation of the trachea.
Why does LMA proseal have a drain tube?
LMA ProSeal™ has a built-in drain tube that allows expelled gastric content to bypass the pharynx. This specific feature is designed to decrease the risk of aspiration. 11,12
How is the LMA introducer used in a mannequin?
The laryngeal mask airway (LMA) introducer is being used with a #4 ProSeal LMA (PLMA) in a mannequin. The LMA introducer aids the PLMA cuff in negotiating the soft palate and posterior pharynx interface.
How does the LMA introducer help with PlmA insertion?
The LMA introducer aids the PLMA cuff in negotiating the soft palate and posterior pharynx interface. This interface may cause difficulty in PLMA insertion as a result of the nonlinear shape of the PLMA cuff. The LMA introducer may aide when insertion difficulty is encountered.
How does LMA proseal help with post-operative nausea?
The LMA ProSeal™ enables the regurgitated fluid to pass up the drainage tube without leaking into the glottis. 8 LMA ProSeal™ reduces the likelihood of throat irritation and stimulation, and reduces post-operative nausea and vomiting by as much as 40% compared to an ETT. 9