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Levodopa responsiveness of dysphagia in advanced Parkinson's disease and reliability testing of the FEES-Levodopa-test.

Published on Jul 1, 2016in Parkinsonism & Related Disorders4.36
· DOI :10.1016/j.parkreldis.2016.04.034
Tobias Warnecke24
Estimated H-index: 24
,
Inga Suttrup7
Estimated H-index: 7
+ 5 AuthorsRainer Dziewas35
Estimated H-index: 35
Sources
Abstract
Abstract Background It is still controversially discussed whether central dopaminergic stimulation improves swallowing ability in Parkinson's disease (PD). We evaluated the effect of oral levodopa application on dysphagia in advanced PD patients with motor fluctuations. Methods In 15 PD patients (mean age 71.93 ± 8.29 years, mean disease duration 14.33 ± 5.94 years) with oropharyngeal dysphagia and motor fluctuations endoscopic swallowing evaluation was performed in the off state and on state condition following a specifically developed protocol (FEES-levodopa-test). The respective dysphagia score covered three salient parameters, i. e. premature spillage, penetration/aspiration events and residues, each tested with liquid as well as semisolid and solid food consistencies. An improvement of >30% in this score indicated levodopa responsiveness of dysphagia. Measures were compared between the off- and on-state condition by using the Wilcoxon Test and marginal homogeneity test. Inter- and intrarater reliability was also investigated. Results Severity of swallowing dysfunction in the off state varied widely. The lowest dysphagia score was 15 points (dysphagia without any aspiration risk). The highest dysphagia score was 84 points (dysphagia with aspiration of all consistencies). Seven patients showed a marked improvement of dysphagia in the on state condition. Eight PD patients did not respond. Inter- and intrarater reliability was excellent for all three subscales in the off state and on state conditions. Conclusions A significant proportion of advanced PD patients with motor fluctuations and mild to moderate oropharyngeal dysphagia may demonstrate a clinically relevant improvement of swallowing after levodopa challenge. The FEES-levodopa-test is a reliable and sensitive tool to differentiate these responders from non-responders.
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More than 80 % of patients with Parkinson’s disease (PD) develop dysphagia during the course of their disease. Swallowing impairment reduces quality of life, complicates medication intake and leads to malnutrition and aspiration pneumonia, which is a major cause of death in PD. Although the underlying pathophysiology is poorly understood, it has been shown that dopaminergic and non-dopaminergic mechanisms are involved in the development of dysphagia in PD. Clinical assessment of dysphagia in PD ...
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#2Chiharu Isono (Kindai University)H-Index: 6
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Abnormal swallowing, dysphagia, is a potentially fatal symptom in Parkinson’s disease (PD) and is characterized by frequent silent aspiration, an unrecognized risk of suffocation and aspiration pneumonia. Several studies have reported that the injection of apomorphine, a dopamine agonist, alleviated dysphagia in some patients with PD. The effects of other antiparkinson medications against dysphagia remain controversial. Rotigotine is another dopamine agonist with non-oral administration, i.e., a...
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#1M. R. A. van Hooren (UM: Maastricht University)H-Index: 2
#2Laura W. J. Baijens (UM: Maastricht University)H-Index: 19
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Abstract The role of levodopa in the treatment of dysphagia in Parkinson's disease (PD) has recently been questioned. There are good reasons, however, to “question the question.” In this essay, evidence from published literature and clinical experience is presented, as well as a critical review of the first meta-analysis to explore this issue. The evidence presented supports the traditional view that PD dysphagia is responsive to levodopa.
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