June 1987

Improvement of Olfaction With a Larynx Bypass Device After Laryngectomy

Author Affiliations

Burlington, Mass

Arch Otolaryngol Head Neck Surg. 1987;113(6):591. doi:10.1001/archotol.1987.01860060017001

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David M. Swartz, MD, of Upstate Medical Center, Syracuse, NY, received the Resident Award at the January 1987 Eastern Section Meeting of the Triological Society for his investigation on the improvement of hyposmia following laryngectomy using a larynx bypass device. Odorant detection thresholds with confusion matrix identification tests were administered to laryngectomees and control patients to determine whether the olfactory deficit could be reversed by restoring nasal airflow. The various nasal stimulants administered were divided into those producing trigeminal nerve stimuli and those that primarily stimulate the olfactory epithelium.

Data were collected on nasal airflow characteristics with and without the bypass in both control and laryngectomee groups. Loss of nasal airflow was identified as the major factor in appreciation of the trigeminal irritants. Restoration of nasal airflow rates with the larynx bypass device reversed the hyposmia for trigeminal nerve stimuli. The olfactory epithelium stimulants, though, were not found to be

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