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The LMA is an SGA originally designed for use in the operating room (Figure 3.9) [50]. The distal tip of the airway contains a spade‐shaped balloon designed to seal around the vocal cord structures. The rescuer inserts the device blindly through the oropharynx, positioning the cuff around the laryngeal structures. Inflation of the cuff facilitates proper sealing of the device.

Limited studies describe LMA use by EMS personnel [51]. Prehospital use in the United States remains relatively limited, possibly due to concerns of the device’s inability to prevent aspiration and its potential for inadvertent dislodgement. A variation is the LMA Fastrach, or Intubating LMA, which is designed to facilitate insertion of an endotracheal tube. Disposable versions of both the LMA and the LMA Fastrach currently exist. Pediatric sizes are available.