This study evaluates changes in swallowing using endoscopic swallowing studies and measuring of pharyngeal sensitivity, taste and smell in stroke patients. Younger (\<60 years) and older (\>60 years) volunteers will serve as control.
Stroke is the second leading cause of death. At least 50% of stroke patients develop dysphagia, leading to aspiration pneumonia, which is the main cause of death in stroke \[2\]. It is assumed that normal sensitivity is vital for aspiration-free swallowing and for the triggering of the swallowing reflex. Ali et al. demonstrated aspiration-free swallowing in healthy volunteers who underwent local anaesthesia of oral and pharyngeal structures \[1\]. Power et al. showed a reduced sensitivity of pharyngeal structures in stroke patients prone to aspiration \[3\]. By combining measuring sensitivity and flexible endoscopic swallowing studies, this study further investigates the role of sensitivity in swallowing Neuropsychological deficits of swallowing, such as swallowing apraxia or buccal hemineglect, is assessed by neuropsychological testing. Additionally, there is no systematic research investigating the change in smell and taste in correlation with changes in stroke patients
Study Type
OBSERVATIONAL
Enrollment
200
Endoscopical swallowing study in stroke patients only
Determining sensitivity threshold using a pudendal electrode
Taste-/smell-test
Universitätsklinikum Gießen
Giessen, Hesse, Germany
RECRUITINGDysphagia
Changes found in endoscopic swallowing study : Presence and severity of dysphagia (measured with Rosenbek's Penetration/Aspiration-scale)
Time frame: 96 hours after initial symptoms
Neuropsychological deficits
Agnosia, neglect
Time frame: 96 hours after initial symptoms
Lesion site
Side, vascular territory, swallowing relevant structures
Time frame: 96 hours after initial symptoms
Sensitivity
Sensitivity of faucial pillar region
Time frame: 96 hours after initial symptoms
Taste/Smell
Smell-/Taste-score
Time frame: 96 hours after initial symptoms
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Neuropsychological testing for neglect, agnosia