Hypersialorrhea in Wilson's Disease.

Area of Science:

• Neurology
• Gastroenterology
• Speech and Language Pathology

Background:

• Hypersialorrhea, or excessive salivation, is a common symptom in Wilson's disease, particularly the neurological form.
• The prevalence and underlying mechanisms of hypersialorrhea in Wilson's disease patients remain incompletely understood.

Purpose of the Study:

• To evaluate the frequency of hypersialorrhea in Wilson's disease patients.
• To investigate the mechanisms contributing to excessive salivation and drooling in this population.

Main Methods:

• A survey of 87 consecutive Wilson's disease patients assessed the sensation of excess saliva.
• A sub-sample of 10 patients with drooling underwent quantitative/qualitative measures, including endoscopic examination and swallowing assessments.
• Oropharyngeal sensitivity was evaluated in the sub-sample.

Main Results:

• 46% of patients reported excessive salivation, predominantly those with neurological symptoms (98%).
• Patients with hypersialorrhea produced significantly higher resting saliva volumes compared to controls.
• Reduced swallowing frequency, delayed swallow latencies, impaired swallowing capacity, and oropharyngeal sensitivity deficits were observed, suggesting multifactorial causes.

Conclusions:

• Hypersialorrhea in Wilson's disease is multifactorial, involving increased saliva production, impaired swallowing function, and sensory deficits.
• Multidisciplinary evaluation is crucial for identifying mechanisms and guiding therapeutic strategies, including speech therapy and adaptive treatments.