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Swallowing and esophageal function in Parkinson's disease
B T Johnston1, Q Li, J A Castell
1Department of Medicine, Graduate Hospital, Philadelphia, Pennsylvania, USA.
The American Journal of Gastroenterology
|October 1, 1995
Summary
Parkinson's disease (PD) often causes swallowing difficulties (dysphagia) and saliva drooling, increasing aspiration risk. Understanding these multifactorial swallowing defects is key to managing PD complications.
Area of Science:
- Neurology
- Gastroenterology
Background:
- Dysphagia and drooling affect a majority of Parkinson's disease (PD) patients.
- Swallowing impairments in PD contribute significantly to morbidity and mortality through aspiration.
Purpose of the Study:
- To review current knowledge on swallowing abnormalities in Parkinson's disease.
- To explore the multifactorial pathogenesis of dysphagia and drooling in PD.
Main Methods:
- Review of existing literature on swallowing disorders in PD.
- Analysis of videofluoroscopic and manometric studies of oral, pharyngeal, and esophageal phases of swallowing.
- Discussion of combined manofluoroscopy for upper esophageal sphincter and pharyngeal assessment.
Main Results:
- Swallowing defects in PD involve oral, pharyngeal, and esophageal phases, often preceding motor symptoms.
- Pathogenesis is multifactorial, including neurological, autonomic, cognitive, and psychological factors.
- Videofluoroscopy and manometry reveal mechanical and functional abnormalities in PD patients.
Conclusions:
- Combined manofluoroscopy shows promise for understanding and treating PD-related swallowing defects.
- Voluntary airway protection techniques may reduce aspiration but require clinical validation.
- Further research is needed to develop effective therapeutic strategies for swallowing dysfunction in PD.