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Chest, Vol 92, 900-903, Copyright © 1987 by American College of Chest Physicians

ARTICLES

Use of a lighted stylet to confirm correct endotracheal tube placement

RD Stewart, A LaRosee, WA Stoy and MB Heller
Division of Emergency Medicine, University of Pittsburgh School of Medicine.

Despite the fact that endotracheal intubation is a skill essential for clinicians of varied specialties, the procedure is not without risk, especially when practiced in an emergency setting, particularly the field environment. Of all complications, none is more serious than unrecognized esophageal intubation. Clinical experience with a method of guided orotracheal intubation using a rigid-wire lighted stylet prompted us to develop a technique to confirm correct intratracheal placement of an endotracheal tube using a new flexible lighted stylet designed for nasotracheal intubation. Endotracheal tubes were placed under direct vision at three sites in the upper airway of five unembalmed human cadavers: esophagus (20 cm from the teeth), trachea (20 cm from the teeth) and the right or left pyriform fossa. Thirty- five volunteer intubators were asked to identify tube placement using the transilluminated glow from the flexible nasotracheal lighted stylet. A total of 168 placements were made in 40 trials. Only one of 56 intratracheal placements was misidentified as esophageal. Of 112 extratracheal placements (esophagus or pyriform fossa), one was misidentified as intratracheal. The level of experience or training bore no relationship to the ability of the intubator to identify correct placement. We conclude from the study that this technique is a rapid and reliable method of confirming correct placement of endotracheal tubes. The use of this method could reduce, if not eliminate, unrecognized esophageal intubation in the field, emergency department, the critical care unit, and the operating room.


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 Anesth. Analg.Home page
S. Knapp, J. Kofler, B. Stoiser, F. Thalhammer, H. Burgmann, M. Posch, R. Hofbauer, M. Stanzel, and M. Frass
The Assessment of Four Different Methods to Verify Tracheal Tube Placement in the Critical Care Setting
Anesth. Analg., April 1, 1999; 88(4): 766 - 766.
[Abstract] [Full Text] [PDF]


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Copyright © 1987 by the American College of Chest Physicians.