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Updated: Aug 9, 2026

Ultrasound-guided Botulinum Toxin-A Injections: A Method of Treating Sialorrhea
Published on: November 9, 2016
Controlling sialorrhoea: a review of available treatment options
Anna Potulska1, Andrzej Friedman
1Medical University, Warsaw, Department of Neurology, Poland.
Abstract:
Sialorrhoea (drooling or excessive salivation) is a common symptom of many neurological diseases (e.g., amyotropic lateral sclerosis, cerebral palsy and Parkinson's disease) and otolaryngologic diseases (tumours of upper aerodigestive tract). It is mostly caused by poor oral and facial muscle control in patients with swallowing dysfunction (secondary sialorrhoea). However, some cases of sialorrhoea are due to hypersecretion of saliva. These cases represent so-called primary sialorrhoea.
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