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Related Experiment Videos

Wheezing and vocal cord dysfunction mimicking asthma.

A H Bahrainwala1, M R Simon

  • 1Department of Pediatrics, Children's Hospital of Michigan, Wayne State University School of Medicine, Detroit, Michigan 48201, USA. abahrain@pol.net

Current Opinion in Pulmonary Medicine
|January 5, 2001
PubMed
Summary

Vocal cord dysfunction (VCD) causes airway obstruction due to paradoxical vocal cord closure. Early diagnosis and management, including speech therapy, are crucial to avoid misdiagnosis as asthma and its complications.

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Area of Science:

  • Pulmonology
  • Otolaryngology

Background:

  • Vocal cord dysfunction (VCD) is a respiratory disorder causing obstructive airway symptoms.
  • VCD symptoms overlap with asthma, leading to potential misdiagnosis.
  • Misdiagnosis can result in inappropriate steroid use and increased healthcare utilization.

Purpose of the Study:

  • To highlight the characteristics of VCD.
  • To differentiate VCD from asthma.
  • To emphasize diagnostic and therapeutic strategies for VCD.

Main Methods:

  • Review of clinical presentation and diagnostic findings.
  • Discussion of spirometry patterns (attenuated inspiratory flow volume loop).
  • Emphasis on laryngoscopy as the gold standard for diagnosis.

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Main Results:

  • VCD presents with variable symptoms like stridor and wheezing.
  • Spirometry may show characteristic inspiratory loop changes.
  • Laryngoscopy confirms paradoxical vocal cord movement during attacks.

Conclusions:

  • VCD requires accurate diagnosis to prevent asthma misclassification.
  • Effective management includes patient education, speech therapy, and psychological support.