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Surgeons who perform pediatric laryngotracheal reconstruction (LTR) have traditionally measured outcomes based on successful airway restoration. Additional information regarding post-surgical vocal function may help guide outcomes toward optimal voice. This investigation documented the relationship between the site of vocal tract vibratory source (glottic versus supraglottic versus mixed) and vocal function in children following LTR.

Endoscopic evaluation of voice source was completed in 16 participants who had LTR as children. Three judges rated vocal quality using the Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V). Acoustic analysis was completed to obtain fundamental frequency and determine the periodicity of the vibratory signal.

Seven participants were identified to have glottic vibration and nine had supraglottic or mixed-source vibration for voice. All …