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Interarytenoid notch height relative to the vocal folds. Pilot study
R J Smith1, M B Neville, N M Bauman
1Department of Otolaryngology-Head and Neck Surgery, The University of Iowa College of Medicine, Iowa City.
The Annals of Otology, Rhinology, and Laryngology
|October 1, 1994
Abstract:
We measured interarytenoid notch height (IANH) in 20 young children who required direct laryngoscopy under general anesthesia. By means of a specifically designed instrument, we found that the average IANH approximated 3 mm. Laryngeal incompetence on swallowing or in the presence of gastroesophageal reflux is associated with a low IANH (p < .0001). Therefore, IANH may be a measure of relative laryngeal incompetence.