Intubating LMA has a rigid silicone-coated, anatomically curved
steel airway tube, which closely follows the curvature of the
palate and posterior pharynx. The distal end features an epiglottis-elevating
bar to lift the epiglottis and allow passage of a tracheal tube
or fiberoptic laryngoscope.
for endotracheal intubation
of patients with limited head/neck movement
internal diameter to accommodate up to a size 8.0 ETT
ventilation/oxygenation throughout intubation attempts
handle eliminates need to place fingers in the mouth and allows
for manipulation of the device
technique, potential trauma if not performed carefully
mouth opening of at least 3cm
intubation/ventilation in any patient position
be re-inserted after intubation to facilitate extubation
Tips for Success:
optimal ventilation (without leak) prior to intubation attempts
the handle and lift prior to intubation ("Chandy's maneuver")
fiberoptic scope to visualize passage in very abnormal airways
Currently available devices:
additional information contact LMA
North America, Inc.
AIJ, Verghese C, Addy EV, Kapila A. "The Intubating Laryngeal
Mask-I. Development of a New Device for Intubating the Trachea."
Brit J Anaesth 79:699, 1997.
PJF, Parr MJA, Nolan JP.. "The Intubating Laryngeal Mask.
Results of a Multicentre Trial with Experience of 500 Cases."
Anaesthesia 53:1174, 1998.
P, Osborn I, Brimacombe J, et al. "Blind Orotracheal Intubation
with the Intubating Laryngeal Mask vs. Fiberoptic Guided Orotracheal
Intubation with the Ovassapian Airway. A Pilot Study of Awake
Patients." Anesth Intensive Care 29:252, 2001.