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Dr Craig's comments on the EOA are pertinent and relevant. It is clear that the esophageal obturator is, as he states, an esophageal blocker primarily and that the airway component of it is akin to that of a nasopharyngeal tube. The fact that the two are combined would, in my opinion, not disqualify the device from being called an esophageal obturator implying an esophageal blocker and, as well, an airway, implying its ability to deliver oxygen or air into the lungs. With regard to protection of the glottis from aspirated material owing to trauma in the head and facial areas in using the EOA, this has been stressed in all advanced life support courses held by the American Heart Association as an important point to consider in the protection of the glottis and the lungs from aspiration. A relative contraindication to the use of the esophageal obturator is
Michael TAD. The Esophageal Obturator Airway-Reply. JAMA. 1982;247(6):754. doi:10.1001/jama.1982.03320310018013
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