What are supraglottic airway devices?

What are supraglottic airway devices?

Supraglottic airways (SGAs) are a group of airway devices that can be inserted into the pharynx to allow ventilation, oxygenation, and administration of anesthetic gases, without the need for endotracheal intubation.

What is the difference between ETT and LMA?

Conclusion: The LMA does not provide safe patent airway to facilitate bedside PDT in critically sick population on controlled ventilation. The ETT is safer for controlled ventilation and should be continued to secure the airway for this purpose until a better alternative is available.

What is difference between LMA and Igel?

Laryngeal mask airway (LMA) Classic™ has an inflatable cuff while i-gel™ has a noninflatable cuff made of thermoplastic elastomer.

How does a supraglottic airway device work?

Supraglottic airway devices are a mainstay of emergency management. They open the upper airway, allowing a person to breathe when there is an airway obstruction. Supraglottic devices such as the laryngeal mask airway (LMA) were once primarily used in surgical settings where a patient was under general anesthesia.

How do you use a supraglottic airway device?

Insertion technique for supraglottic airway:

  1. Give sedative and analgesia if required.
  2. Deflate cuff using 20ml syringe.
  3. Lubricate outer cuff.
  4. Position patient.
  5. From behind the patient, hold the tube like a pen and insert into the mouth, sliding the outer cuff along the palate.

What are the sizes of LMA?


Weight, kg Mask Size LMA Models
20-30 2.5 Classic, Unique
30-50 3 Classic, Unique, Fastrach
50-70 4 Classic, Unique, Fastrach
70-100 5 Classic, Unique, Fastrach

How many sizes of LMA are there?

Sizes: 0 (infant) to 6 (large adult) size 3 (females) or 4 (males) commonly used in adults.

Can LMA be connected to ventilator?

Mechanical Ventilation. A benefit of LMA use is that it is less stimulating to a patient than an ETT; therefore, less anesthesia is often required. Due to increasing comfort with use and the development of a new generation of devices, LMAs are routinely used safely with mechanical ventilation.

What type of airway is an Igel?

The i-gel® is a second generation supraglottic airway device made from a thermoplastic elastomer, which makes it PVC and latex-free. It features a non-inflating cuff, an integrated bite block and a gastric channel/ drain tube (the size 1 neonatal i-gel does not have this gastric channel).

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