The relationship between dysphagia and clinical types in Parkinson?s disease

Dysphagia is a common symptom in Parkinson’s disease, but the cause and mechanism are still unclear. It is known that the manifestations may be derived from dysphagia motor symptoms characteristic of Parkinson’s disease. Thus, the study aims to investigate whether the literature indicates the relationship between dysphagia and clinical types (predominant symptoms) in Parkinson’s disease and levodopa influences swallowing in these patients. The search was performed using databases: portal Bireme (Medline, Lilacs, IBECS, Scielo, Cochrane Library, among other banks portal) and the Pubmed website. There was no restriction regarding the year of publication and language. The descriptors used were: Parkinson’s disease and Parkinson’s disease or Swallow or deglutition or swallowing and dysphagia and Levodopa. 29 papers were found, of which only two were included in the eligibility criteria. But the articles selected are not a clear relationship between dysphagia and the classic symptoms of Parkinson’s disease, but the results show that point to an improvement in swallowing after levodopa in some patients or in patients with dyskinesia. More studies are needed that can clarify this issue, helping to guide therapeutic interventions more targeted and effective.