Aortic arch compliance and idiopathic unilateral vocal fold paralysis

Journal of Applied Physiology
Reza BehkamJulie M Barkmeier-Kraemer

Abstract

Unilateral vocal fold paralysis (UVP) occurs related to recurrent laryngeal nerve (RLN) impairment associated with impaired swallowing, voice production, and breathing functions. The majority of UVP cases occur subsequent to surgical intervention with approximately 12-42% having no known cause for the disease (i.e., idiopathic). Approximately two-thirds of those with UVP exhibit left-sided injury with the average onset at ≥50 yr of age in those diagnosed as idiopathic. Given the association between the RLN and the subclavian and aortic arch vessels, we hypothesized that changes in vascular tissues would result in increased aortic compliance in patients with idiopathic left-sided UVP compared with those without UVP. Gated MRI data enabled aortic arch diameter measures normalized to blood pressure across the cardiac cycles to derive aortic arch compliance. Compliance was compared between individuals with left-sided idiopathic UVP and age- and sex-matched normal controls. Three-way factorial ANOVA test showed that aortic arch compliance (P = 0.02) and aortic arch diameter change in one cardiac cycle (P = 0.04) are significantly higher in patients with idiopathic left-sided UVP compared with the controls. As previously demonstrated...Continue Reading

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Citations

Aug 21, 2018·The Annals of Otology, Rhinology, and Laryngology·Neel K BhattRandal C Paniello
May 29, 2019·Stroke; a Journal of Cerebral Circulation·Fiona MaloneLiam Morris
Oct 20, 2020·The Annals of Thoracic Surgery·Emily K PlowmanEric I Jeng

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