Page 166 - Clinical Application of Mechanical Ventilation
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132 Chapter 5
TABLE 5-3 precautions in the use of an Esophageal Obturator Airway
An EOA should not be used in awake or semiconscious patients.
An EOA should not be used in children under 16 years of age or under
5 ft tall.
An EOA should not be used in patients with known esophageal disease.
An EOA must not be removed until the patient has regained
consciousness.
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ESOphAGEAL GASTRIC TuBE AIRwAy (EGTA)
The esophageal gastric tube airway (EGTA) is similar in design to the EOA.
esophageal gastric tube
airway (EGTA): A tube used in Whereas the EOA has a closed distal end, the EGTA has an opening at the distal
esophageal intubation. It has a end (Figure 5-6). The opening allows removal or aspiration of air and gastric con-
patent distal end to relieve gastric
distention. tents from the stomach via a gastric tube. The advantage of this design is the relief
of gastric distention or pressure that may occur during bag to mask ventilation
(Wilkins et al., 2003; White, 2004).
With an EGTA, the ventilation holes along the proximal end of the tube are ab-
There are two ports on sent. Ventilation is provided through the mask by a traditional manual resuscitation
the EGTA mask. The resuscita-
tion bag must be attached to bag. Since there are two ports on the mask, the resuscitation bag must be attached
the ventilation port. to the ventilation port. Table 5-4 outlines the distinct features of the EOA and
the EGTA.
Nasogastric
Port
Ventilation
Port
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Opening at Distal End
for Nasogastric Tube
Figure 5-6 An esophageal gastric tube airway (EGTA).
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