ArticleAmerican journal of speech-language pathology2026
Upward Effortful Pitch Glide as a Predictor of Pharyngeal Constriction in Individuals With Upper Versus Lower Motor Neuron Lesions.
Article in American journal of speech-language pathology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThis study tested the validity of using nasoendoscopy ratings of volitional maximum pharyngeal constriction (PCmax) during nasoendoscopy recordings of effortful upward pitch glide to predict pharyngeal area at maximum constriction (PAM) during swallowing recordings (VFSSs) in individuals with upper motor neuron (UMN) versus lower motor neuron (LMN) lesions.
methodRetrospective analysis of electronic medical records identified individuals with UMN or LMN lesions who underwent both VFSS and nasoendoscopy within 3 months. Blinded expert judges rated the degree and symmetry of PCmax in paired nasoendoscopic images of quiet breathing (minimum pharyngeal constriction) and highest pitch production (PCmax). Sixty-five percent of paired images were rated twice for intra- and interrater reliability estimates of agreement; consensus-based ratings were used when disagreement occurred. Comparisons between PCmax ratings and dichotomized VFSS PAM measures from 3-cc and 20-cc liquid bolus trials within UMN and LMN groups were assessed using univariate logistic regression.
resultsForty-six individuals (
conclusionThose with LMN lesions show predictable correspondence between PCmax and PAM outcomes, while the PCmax measures of a volitional task may not predict PAM in UMN lesioned individuals.
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