• W Bigenzahn, B Pesau, and M Frass.
• Second Department of Otolaryngology, General Hospital, University of Vienna, Austria.
• Eur Arch Otorhinolaryngol. 1991 Jan 1; 248 (3): 129-31.

AbstractThe esophageal-tracheal Combitube (Sheridan, Argyle, NY) is a new device for emergency intubation, which can be inserted blindly without the use of a laryngoscope. Ventilation is independent of the position of the Combitube in either the esophagus or the trachea, since ventilation is always provided by the tube's double channel. The "tracheal" channel acts as a conventional endotracheal airway and has an open distal end. The "esophageal" channel has a blocked distal end, so that together with the inflated distal cuff it acts as an esophageal obturator in cases of esophageal intubation. Perforations at the pharyngeal section direct the airflow to the trachea. At the oropharyngeal section a large elastic balloon is positioned in order to obturate the oral cavity and the nasopharynx. Two patients are described to exemplify the Combitube's clinical use. Both had rapidly enlarging cervical hematomas causing upper airway obstruction and thus requiring immediate intubation. Endotracheal intubation failed because the glottis could not be visualized with a laryngoscope. In both cases the Combitube was applied successfully and adequate ventilation was provided via the Combitube placed esophageally. To better secure each patient's airway, tracheotomy was performed during ventilation without any complications.

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