Both subjective and objective evidence of laryngeal dysfunction may be common in individuals with chronic cough and cough hypersensitivity syndrome (CHS), according to a study published in the Journal of Allergy and Clinical Immunology: In Practice.

Laryngeal dysfunction may also contribute to CHS mechanisms, and could potentially benefit from interventions such as speech pathology.

Researchers recruited 69 individuals with chronic cough, vocal cord dysfunction (VCD), and muscle tension dysphonia (MTD), as well as healthy controls. The purpose of the study was to determine the presence and severity of laryngeal dysfunction in individuals with chronic cough and compare these findings with known VCD and MTD. Researchers hypothesized that laryngeal dysfunction would be present in individuals with chronic refractory cough and that it would be similar in individuals with VCD and MTD.