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Interarytenoid Notch Height Relative to the Vocal Folds Pilot Study

1994; SAGE Publishing; Volume: 103; Issue: 10 Linguagem: Inglês

10.1177/000348949410301002

1943-572X

Richard J. Smith, Michael B. Neville, Nancy M. Bauman,

Voice and Speech Disorders

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.