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07:42
Nerve Excitability Assessment in Chemotherapy-induced Neurotoxicity
Published on: April 26, 2012
Toxin-induced chemosensory dysfunction: a case series and review
Wendy M Smith1, Terence M Davidson, Claire Murphy
1Department of Surgery, Division of Otolaryngology-Head and Neck Surgery and Continuing Medical Education, University of California, San Diego School of Medicine, San Diego, California 92103, USA. wmsmith@ucsd.edu
American Journal of Rhinology & Allergy
|December 5, 2009
Summary
Toxic chemical exposures can cause olfactory and gustatory dysfunction. This study reviews cases, highlighting the broad range of symptoms and providing a diagnostic and therapeutic framework for patients with toxin-induced smell and taste loss.
Area of Science:
- Otolaryngology
- Toxicology
- Neuroscience
Background:
- Toxic chemical exposures are a significant cause of olfactory disorders, accounting for 1-5% of cases.
- Olfactory neurons and taste buds are vulnerable to environmental toxins due to their exposed anatomical locations.
- This study aims to outline diagnostic and therapeutic strategies for toxin-induced chemosensory dysfunction.
Observation:
- A retrospective chart review identified patients with toxin-induced olfactory or gustatory dysfunction.
- Patient ages ranged from 31 to 67 years, with exposures including ammonia, gasoline, and chemotherapy agents.
- The majority of patients (71%) presented with olfactory dysfunction alone.
Findings:
- Severe hyposmia to anosmia was observed in 72% of patients with olfactory loss.
- Taste dysfunction, specifically hypogeusia, was present in patients reporting taste disorders.
- Only 14% of patients reported parosmias, indicating distorted smell perception.
Implications:
- This case series demonstrates the diverse clinical presentations of toxin-induced chemosensory impairment.
- A structured diagnostic and treatment approach is crucial for managing these patients.
- Understanding the impact of toxins on smell and taste can guide preventative measures and clinical interventions.
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