ArticleThe Laryngoscope2025
Can the Repetitive Saliva Swallow Test Predict Airway Invasion in All Cause Dysphagia?
Article in The Laryngoscope, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesThe repetitive saliva swallow test (RSST) is a simple, noninvasive screening tool for oropharyngeal dysphagia, validated to detect aspiration in individuals with neurogenic dysphagia. This study aims to evaluate the diagnostic properties of the RSST in predicting airway invasion in an all-cause dysphagia population using fiberoptic endoscopic evaluation of swallowing (FEES) as the gold standard.
methodsA retrospective review including 87 adult outpatients from a dysphagia clinic was conducted. Each patient underwent both RSST and FEES. The primary outcome measure was the RSST's diagnostic performance against FEES-determined airway invasion (penetration-aspiration scale, PAS ≥ 3).
resultsThe study cohort had a median RSST score of 5, and 32% demonstrated airway invasion on FEES. Higher RSST scores were associated with a lower likelihood of airway invasion (OR: 0.79, p = 0.03). On receiver operating characteristic curve analysis, RSST had an area under the curve of 0.64, with an optimal cutoff of ≤ 6 swallows, yielding 89% sensitivity and 34% specificity.
conclusionThe RSST demonstrates statistical compatibility for airway invasion screening in an all-cause dysphagia population. However, its high cutoff values hinder its clinical utility due to modest specificity. LEVEL OF EVIDENCE: 3:
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