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[Vocal cord dyskinesia and/or asthma]
J J Braun1, C Delmas2, A Charloux3
1Service d'ORL-CCF, hôpital de Hautepierre, hôpitaux universitaires de Strasbourg, 67098 Strasbourg cedex, France; Service de pneumologie et d'allergologie, pôle de pathologie thoracique, NHC, hôpitaux universitaires de Strasbourg, 67091 Strasbourg cedex, France.
Revue Des Maladies Respiratoires
|February 5, 2018
Summary
Vocal cord dysfunction (VCD) is often misdiagnosed, mimicking asthma and leading to delayed treatment. Early diagnosis through laryngoscopy is crucial to avoid unnecessary interventions for this laryngeal airflow limitation.
Area of Science:
- Otolaryngology
- Pulmonology
- Respiratory Medicine
Background:
- Vocal cord dysfunction (VCD) involves intermittent abnormal vocal cord adduction, causing laryngeal airflow limitation without organic disease.
- Symptoms include wheezing, stridor, and apparent upper airway obstruction, often mimicking asthma.
- VCD affects various ages, is more common in women, and frequently leads to delayed diagnosis and inappropriate treatments.
Purpose of the Study:
- To describe the clinical features and diagnostic strategies for VCD.
- To analyze cases of isolated VCD and VCD associated with asthma.
Main Methods:
- Retrospective study of 15 VCD cases (8 isolated, 7 with asthma).
- Review of clinical presentations and diagnostic approaches.
Main Results:
- Apparent upper airway obstruction necessitates ENT examination and laryngoscopy.
- Laryngoscopy confirms paradoxical vocal cord adduction during dyspnea or provocation tests (exercise, irritants).
- Differential diagnosis is essential for accurate VCD identification.
Conclusions:
- VCD is under-recognized and frequently misdiagnosed, often confused with asthma.
- Delayed diagnosis by various specialists results in unnecessary treatments and increased patient morbidity.
- Prompt and accurate diagnosis is vital for effective VCD management.
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