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Related Experiment Videos

Olfactory disturbance in pediatric tracheotomy

M A Rothschild1, C M Myer, H J Duncan

  • 1Department of Pediatric Otolaryngology, Children's Hospital Medical Center, University of Cincinnati School of Medicine, OH 45229, USA.

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|July 1, 1995
PubMed
Summary

Tracheotomy in children can impair their sense of smell, specifically their ability to identify familiar odors. This reduction in olfactory identification may persist even after the breathing tube is removed, affecting children

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Area of Science:

  • Otolaryngology
  • Pediatric Medicine
  • Neuroscience

Background:

  • Hyposmia (reduced sense of smell) is documented after laryngectomy, often linked to decreased nasal airflow.
  • Children with nasal obstruction exhibit elevated olfactory detection thresholds due to reduced airflow.
  • Tracheotomy in children can cause similar nasal airflow reductions, raising concerns about olfactory function.

Purpose of the Study:

  • To investigate the impact of tracheotomy on olfactory identification abilities in children.
  • To determine if reduced nasal airflow due to tracheotomy affects the capacity to recognize familiar odors.
  • To assess potential long-term effects on olfactory function post-decannulation.

Main Methods:

  • Studied children aged 4-16 years with upper airway obstruction requiring tracheotomy.

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  • Compared olfactory identification of familiar odorants in tracheotomy patients versus a control group.
  • Ensured no participants had intrinsic mucosal or olfactory pathology.

    • Main Results:

    • Children with tracheotomies showed significantly lower olfactory identification scores compared to controls.
    • Statistical analyses (Student's t test, Wilcoxon rank sum test) confirmed this reduction.
    • Age was identified as an independent prognostic variable affecting olfactory identification ability.

    Conclusions:

    • Tracheotomy is associated with a reduced ability in children to identify familiar odorants.
    • Altered nasal airflow secondary to tracheotomy likely contributes to impaired olfactory identification.
    • Early olfactory stimulation may be crucial for normal development, suggesting potential persistent deficits.