Validation of the DIGEST-FEES as a Global Outcome Measure for Pharyngeal Dysphagia in Parkinson's Disease.
Bendix Labeit, Sriramya Lapa, Paul Muhle and 7 others
PMID 38135841WHAT IT FOUND
The DIGEST-FEES score reliably grades pharyngeal dysphagia severity in Parkinson's patients.
It correlates strongly with residue scales and oral intake, but weakly with aspiration events. Use it to track swallowing efficiency, not as a standalone safety check for silent aspiration.
Key findings
01Inter-rater reliability for the overall DIGEST-FEES was Kappa = 0.82, and intra-rater reliability was Kappa = 0.87.
02The DIGEST-FEES score correlated significantly with the Yale Residue Scales, the Functional Oral Intake Scale (FOIS), and the UPDRS swallowing items.
03There was no significant correlation between the overall DIGEST-FEES score and the Penetration-Aspiration Scale (PAS).
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The study cohort had mild dysphagia, with 63.6% of patients having no impairment of oral intake (FOIS 7). Penetration and aspiration events were rare in the sample (only 1.5% had PAS > 5), which may explain why the global score failed to correlate with aspiration. The expert panel was small (10 people), and all were authors of the paper. Patients with deep brain stimulation or feeding tubes were excluded, limiting generalizability to more complex Parkinson's cases.
Declared interests
Funding was provided by Clexio Biosciences Ltd, Else Kröner-Fresenius-Stiftung, and Universitätsklinikum Düsseldorf. The expert panel consisted of the paper's authors.
The easy way to misread this
Do not assume the DIGEST-FEES global score detects aspiration. In this study, the global score did not correlate with the Penetration-Aspiration Scale because most patients had mild disease and the score was driven by residue. Use the safety subscore or PAS directly if aspiration risk is the primary concern.