Abstract
The esophageal obturator airway (EOA) has been used in cardiopulmonary resuscitation since 1973. The device is inserted into the esophagus and isolates the stomach from the airways by an occlusive balloon located below the tracheal bifurcation. It aims to prevent gastrointestinal inflation and regurgitation and to provide ventilation. A critique and literature review point out the speed and ease of insertion (5 s), short training period, and efficacy as it relates to blood gases and tidal volumes, which are comparable with those obtained with endotracheal intubation. Complications, including esophageal trauma and tracheal entry, are discussed, indicating their low incidence. As optimal endoscopic facilities are often unavailable at the site of cardiopulmonary arrest, the use of the EOA by trained personnel as an alternative or preceding technique is advocated.
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