LARYNGEAL MASK AIRWAY


 
The LMA is available in the following sizes:
  • 1-3: Newborn to 30-50 kg child, in .5 increments
  • 4: 50-70 kg adult
  • 5: Larger adults
INDICATIONS
  • Rescue device for "can't intubate" situations
CONTRAINDICATIONS
  • Significant oropharyngeal pathology, trauma, or bleeding.
PROCEDURE
  • Open airway via head tilt.
  • Insert LMA with opening facing the tongue and advance along the hard palate until tip is well into hypopharynx.
  • Inflate cuff with 20-40 mL air (amount listed on device).
            - Forms seal around glottic opening
     
  • With the intubating LMA, an ET tube can be advanced through the lumen of the LMA for blind tracheal intubation.
COMPLICATIONS
  • Aspiration
  • Limited utility in patients who require high pressures to ventilate (eg, obese, severe asthma)