Abstract
Swallowing is a coordinated activity that allows the uninterrupted passage of oral contents (food, saliva, and/or secretions) into the stomach. Any disorder in the swallowing process that presents a risk of penetration/aspiration is called dysphagia. The term oropharyngeal dysphagia is used when alterations are characterized by impairment in the oral and pharyngeal phases of swallowing. Oropharyngeal dysphagia is a symptom with a high prevalence and severity in patients with Parkinson's disease (PD), which impairs the safe swallowing of food and/or saliva, leading to risks such as dehydration, malnutrition, aspiration pneumonia, and even mortality.
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