Dysphagia Screening in Parkinson's Disease. A diagnostic accuracy cross‐sectional study investigating the applicability of the Gugging Swallowing Screen (GUSS)

Abstract

The multi-texture screening tool GUSS in its current form, although applicable with good inter-rater reliability, does not detect aspiration in PD patients with acceptable accuracy. Modifications of the GUSS parameters "coughing," "voice change" and "delayed swallowing" might enhance validity. The GUSS' diet recommendations overestimate the need for oral intake restriction in PD patients and should be verified by instrumental swallowing examination.