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Related Experiment Videos

Laryngeal mobility and dysphagia

O Bretan1, M A Henry

  • 1Department de Ophthalmology, Otorrhinolaringology and Head and Neck Surgery, School of Medicine of Botucatu, State University of São Paulo, Botucatu, Brazil.

Arquivos De Gastroenterologia
|July 1, 1997
PubMed
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Physical examination of laryngeal movement during swallowing aids in assessing oropharyngeal swallowing disorders. This noninvasive method detects defective laryngeal motion and associated functional impairments, aiding dysphagia evaluation.

Area of Science:

  • Otolaryngology
  • Gastroenterology
  • Neurology

Background:

  • Swallowing disorders (dysphagia) affect the oropharyngeal region.
  • Accurate assessment of laryngeal function during deglutition is crucial for diagnosing dysphagia.
  • Current diagnostic methods may not fully capture the nuances of laryngeal mobility.

Purpose of the Study:

  • To evaluate the utility of physical palpation and measurement of laryngeal movement during swallowing.
  • To establish normal laryngeal elevation values for comparison.
  • To identify abnormal laryngeal motion and displacement in patients with dysphagia.

Main Methods:

  • Physical examination involving measurement and palpation of the larynx during deglutition.
  • Study included 14 patients with dysphagia and two normal control groups.

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  • Normal laryngeal elevation values were established from control groups.

    • Main Results:

    • Normal laryngeal elevation ranged from 1.80 to 2.50 cm.
    • Eight dysphagic patients exhibited defective laryngeal motion (0 to 1.50 cm).
    • Anomalous displacements like lateral shifting and lowering of the larynx were observed; impaired pharyngeal and upper esophageal sphincter function noted in some patients.

    Conclusions:

    • Direct measurement and palpation of laryngeal mobility is a noninvasive method for evaluating dysphagia.
    • This physical assessment aids in identifying aspiration risk and monitoring disorder evolution.
    • The method reveals subtle laryngeal dysfunctions and associated functional impairments.