Endoscopic characteristics and levodopa responsiveness of swallowing function in progressive supranuclear palsy

Dysphagia is a frequent and early symptom in progressive supranuclear palsy (PSP) predisposing patients to aspiration pneumonia. Fiberoptic endoscopic evaluation of swallowing (FEES®) has emerged as a valuable apparative tool for objective evaluation of neurogenic dysphagia. This is the first study using FEES® to investigate the nature of swallowing impairment in PSP. Eighteen consecutive PSP patients (mean age 69.7 ± 9.0 years) were included....