empty or vent the
stomach if needed,
says Dr. Frederick.
While newer models
don't provide perfect
coverage from aspira-
tion, these gastric
channels can provide
some protection and
give an early warning
of regurgitation, says
Dina Velocci, CRNA, DNP, APN, owner of Velocci Anesthesia Services
of Nashville, Tenn. Because of that, SGAs with gastric access may be
beneficial for heavier patients, diabetics or those with mild gastroe-
sophageal reflux disease. "Despite the fact that it's not 100% protective,
the devices have improved and some help to prevent aspiration," she
says. "But when it comes down to it, the only truly protected airway is
the [endotracheal] tube."
3. Bite block
Some SGAs offer an integrated bite block, which helps ensure that
patients don't close off their airflow if they have a jaw spasm or bite
down on the tube. "They can't compress this as they do other
devices," says Ms. Velocci.
4. Size and shape of the device
Keep a smaller tube-like airway on hand for patients who struggle to
open their mouths widely enough to place an LMA, says Dr. Frederick.
These devices use a balloon that helps block the esophagus and
oropharynx when inflated after insertion. For patients whose neck
1 1 0
O U T P A T I E N T S U R G E R Y M A G A Z I N E O N L I N E | N O V E M B E R 2 0 1 5
"There is currently no perfect airway
tool. If there were, that would be
the only one we would use."
— Carrie Frederick, MD
Pamela
Bevelhymer,
RN,
BSN
