Speech pathology for chronic cough: a new approach
Peter G Gibson1, Anne E Vertigan
1Centre for Asthma and Respiratory Diseases, John Hunter Hospital University of Newcastle, Newcastle, NSW, Australia. peter.Gibson@hnehealth.nsw.gov.au
Refractory chronic cough, often linked to laryngeal hypersensitivity, may improve with speech pathology. This intervention targets cough, voice, and breathing symptoms effectively.
Area of Science:
- Otolaryngology
- Speech-Language Pathology
Background:
- Refractory chronic cough persists despite medical treatment for conditions like asthma and GERD.
- Many patients exhibit laryngeal hypersensitivity, affecting cough reflex and vocal function.
- This hypersensitivity can manifest as heightened cough reflex sensitivity and vocal cord dysfunction.
Purpose of the Study:
- To evaluate the effectiveness of a multidimensional speech pathology program for refractory chronic cough.
- To assess the impact of speech pathology on cough, breathing, voice, and laryngeal symptoms.
Main Methods:
- A single-blind, randomized, placebo-controlled trial was conducted with 87 patients.
- The intervention group received a speech pathology program including education, vocal hygiene, cough suppression, and counseling.
- The control group received placebo intervention.
Main Results:
- The speech pathology group showed significant reductions in cough, breathing, voice, and upper airway symptoms.
- Auditory perceptual ratings of voice quality (breathiness, roughness, strain, glottal fry) improved.
- Significant improvements were observed in voice acoustic parameters like maximum phonation time, jitter, and harmonic-to-noise ratio.
Conclusions:
- Speech pathology intervention is an effective treatment for refractory chronic cough.
- The multidimensional program addresses both sensory and motor laryngeal aspects contributing to chronic cough.
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