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Odor provocation test for laryngeal hypersensitivity.

Jackie L Gartner-Schmidt1, Clark A Rosen, Nandhakumar Radhakrishnan

  • 1University of Pittsburgh Voice Center, Department of Otolaryngology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15213, USA. jgs@pitt.edu

Journal of Voice : Official Journal of the Voice Foundation
|May 22, 2007
PubMed
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This study developed a test for odor-induced laryngeal hypersensitivity. Results suggest reactions may stem from odor, cognitive factors, or secondary gain, requiring further investigation.

Area of Science:

  • Otolaryngology
  • Neurology
  • Psychology

Background:

  • Laryngeal hypersensitivity can be triggered by odors, impacting voice quality.
  • Distinguishing true hypersensitivity from psychological factors or secondary gain is clinically challenging.

Observation:

  • A novel odor provocation test was administered to a patient with suspected odor-induced dysphonia.
  • Laryngeal hypersensitivity was assessed during separate nasal and oral breathing phases.
  • A healthy control (HC) group was included for comparison, showing no adverse reactions.

Findings:

  • The patient exhibited differential responses to odors during nasal versus oral breathing.
  • Oral breathing resulted in less severe and frequent hypersensitive reactions.
  • Findings suggest a complex interplay of olfactory perception, cognitive influences, and potential secondary gain.

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Implications:

  • This study presents a structured, repeatable method for investigating odor-induced laryngeal hypersensitivity.
  • The findings highlight the need for careful differential diagnosis in patients with suspected odor-related laryngeal symptoms.
  • Further research is warranted to elucidate the precise etiological mechanisms and differentiate organic from psychogenic components.