1. Laryngeal Complications of Prolonged Intubation
Gene L. Colice, M.D., Therese A. Stukel, Ph.D., Bradley Dain, M.S. 
CHEST 
Volume 96, Issue 4, Pages (October 1989)
DOI: /chest
Copyright © 1989 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Left: A schematic view looking into the larynx with an endotracheal tube positioned between the vocal cords is shown. Right: At laryngoscopy; following extubation or tracheostomy, ulcers along the posterior aspects of both vocal cords were commonly seen as shown in this schematic. The site of these ulcers corresponds to the area where the translaryngeal endotracheal tube pressed against the vocal cords.
CHEST  , DOI: ( /chest )
Copyright © 1989 The American College of Chest Physicians Terms and Conditions

3. Figure 2
Posterior view of a larynx removed at autopsy in a patient having had TLI for seven days shows typical ulcers (1) along the posterior aspects of both vocal cords. Swelling of the true and false vocal cords (2) is also apparent.
CHEST  , DOI: ( /chest )
Copyright © 1989 The American College of Chest Physicians Terms and Conditions

4. Figure 3
Time period of resolution of laryngeal damage, determined by serial laryngoscopies, is shown. Asterisks (*) indicate time periods when moderate and severe adverse clinical events were noted. Two patients died within two weeks and one patient within four weeks of entry into the study of aspiration-related problems. Two patients required tracheostomy (trached) within two weeks of study entry. Four patients had chronic hoarseness (with laryngeal polyps) at four months after entry into the study. One patient (not indicated) had transient stridor immediately postextubation.
CHEST  , DOI: ( /chest )
Copyright © 1989 The American College of Chest Physicians Terms and Conditions