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Area of Science:

  • Otolaryngology
  • Speech Pathology

Background:

  • Transient hypernasality is a common post-tonsillectomy complication.
  • Understanding anatomical factors influencing hypernasality is crucial for patient management.

Purpose of the Study:

  • To investigate the relationship between specific throat anatomical conditions and the degree and duration of post-tonsillectomy transient hypernasality.
  • To identify anatomical predictors of significant post-tonsillectomy hypernasality.

Main Methods:

  • 82 tonsillectomies were performed, with participants categorized into four groups based on tonsil size and soft palate position.
  • Key variables included: diameter of vapor (DV) during nasal speech, uvula-to-pharyngeal wall distance, healing grade, and hypernasality assessment.
  • Pre- and post-operative measurements were compared.

Main Results:

  • Hypernasality was most pronounced in patients with large tonsils and a low soft palate position (group 4).
  • The diameter of vapor (DV) measurements indicated significant changes after surgery, varying across groups.
  • Group 2 showed the lowest mean hypernasality, while group 4 exhibited the highest.

Conclusions:

  • Post-tonsillectomy hypernasality is significantly influenced by the interplay between tonsil size and soft palate positioning relative to the tongue base.
  • Patients with large tonsils and a low soft palate position are at higher risk for greater and more prolonged hypernasality.