Movement disorders : official journal of the Movement Disorder Society · 2021
Gray and White Matter Correlates of Dysphagia in Progressive Supranuclear Palsy.
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Clark Heather M, Tosakulwong Nirubol, Weigand Stephen D, Ali Farwa, Botha Hugo, Pham Nha Trang Thu, Schwarz Christopher G, Reid Robert I, Senjem Matthew L, Jack Clifford R, Lowe Val J, Ahlskog J Eric, Josephs Keith A, Whitwell Jennifer L
Аннотация
BACKGROUND: Dysphagia is a common symptom of progressive supranuclear palsy often leading to aspiration pneumonia and death.
OBJECTIVE: The aim of this study was to examine how impairments of the oral and pharyngeal phases of the swallow and airway incursion during liquid swallows relate to gray and white matter integrity.
METHODS: Thirty-eight participants with progressive supranuclear palsy underwent videofluorographic swallowing assessment and structural and diffusion tensor head magnetic resonance imaging. Penalized linear regression models assessed relationships between swallowing metrics and regional gray matter volumes and white matter fractional anisotropy and mean diffusivity.
RESULTS: Oral phase impairments were associated with reduced superior parietal volumes and abnormal diffusivity in parietal and sensorimotor white matter, posterior limb of the internal capsule, and superior longitudinal fasciculus. Pharyngeal phase impairments were associated with disruption to medial frontal lobe, corticospinal tract, and cerebral peduncle. No regions were predictive of airway incursion.
CONCLUSIONS: Differential patterns of neuroanatomical impairment corresponded to oral and pharyngeal phase swallowing impairments. © 2021 International Parkinson and Movement Disorder Society.
OBJECTIVE: The aim of this study was to examine how impairments of the oral and pharyngeal phases of the swallow and airway incursion during liquid swallows relate to gray and white matter integrity.
METHODS: Thirty-eight participants with progressive supranuclear palsy underwent videofluorographic swallowing assessment and structural and diffusion tensor head magnetic resonance imaging. Penalized linear regression models assessed relationships between swallowing metrics and regional gray matter volumes and white matter fractional anisotropy and mean diffusivity.
RESULTS: Oral phase impairments were associated with reduced superior parietal volumes and abnormal diffusivity in parietal and sensorimotor white matter, posterior limb of the internal capsule, and superior longitudinal fasciculus. Pharyngeal phase impairments were associated with disruption to medial frontal lobe, corticospinal tract, and cerebral peduncle. No regions were predictive of airway incursion.
CONCLUSIONS: Differential patterns of neuroanatomical impairment corresponded to oral and pharyngeal phase swallowing impairments. © 2021 International Parkinson and Movement Disorder Society.