Ertekin C, Aydogdu I. Neurophysiology of swallowing. Clin Neurophysiol. 2003;114:2226–44. https://doi.org/10.1016/s1388-2457(03)00237-2.

Article  PubMed  Google Scholar 

Jean A. Brain stem control of swallowing: neuronal network and cellular mechanisms. Physiol Rev. 2001;81:929–69. https://doi.org/10.1152/physrev.2001.81.2.929.

Article  CAS  PubMed  Google Scholar 

Cho SY, Choung RS, Saito YA, Schleck CD, Zinsmeister AR, Locke GR 3rd, et al. Prevalence and risk factors for dysphagia: a USA community study. Neurogastroenterol Motil. 2015;27:212–9. https://doi.org/10.1111/nmo.12467.

Article  CAS  PubMed  Google Scholar 

Gandhi P, Steele CM. Effectiveness of interventions for dysphagia in parkinson disease: a systematic review. Am J Speech Lang Pathol. 2022;31:463–85. https://doi.org/10.1044/2021_AJSLP-21-00145.

Article  PubMed  Google Scholar 

Wang X, You G, Chen H, Cai X. Clinical course and cause of death in elderly patients with idiopathic Parkinson’s disease. Chin Med J Engl. 2002;115:1409–11.

PubMed  Google Scholar 

Beyer MK, Herlofson K, Arsland D, Larsen JP. Causes of death in a community-based study of Parkinson’s disease. Acta Neurol Scand. 2001;103:7–11. https://doi.org/10.1034/j.1600-0404.2001.00191.x.

Article  CAS  PubMed  Google Scholar 

Banda KJ, Chu H, Kang XL, Liu D, Pien LC, Jen HJ, et al. Prevalence of dysphagia and risk of pneumonia and mortality in acute stroke patients: a meta-analysis. BMC Geriatr. 2022;22:420. https://doi.org/10.1186/s12877-022-02960-5.

Article  PubMed  PubMed Central  Google Scholar 

Rinaldi D, Imbalzano G, Galli S, Bianchini E, Ledda C, De Carolis L, et al. The impact of dysphagia in Parkinson’s disease patients treated with levodopa/carbidopa intestinal gel. Park Relat Disord. 2023;109:105368. https://doi.org/10.1016/j.parkreldis.2023.105368.

Article  Google Scholar 

Fabbri M, Coelho M, Abreu D, Guedes LC, Rosa MM, Godinho C, et al. Dysphagia predicts poor outcome in late-stage Parkinson’s disease. Park Relat Disord. 2019;64:73–81.

Google Scholar 

Narula N, Narula T, Mira-Avendano I, Wang B, Abril A. Interstitial lung disease in patients with mixed connective tissue disease: pilot study on predictors of lung involvement. Clin Exp Rheumatol. 2018;36:648–51.

PubMed  Google Scholar 

Langmore SE, Pisegna JM. Efficacy of exercises to rehabilitate dysphagia: a critique of the literature. Int J Speech Lang Pathol. 2015;11:222–9. https://doi.org/10.3109/17549507.2015.1024171.

Article  Google Scholar 

Kang J-H, Park R-Y, Lee S-J, Kim J-Y, Yoon S-R, Jung K-I. The effect of bedside exercise program on stroke patients with dysphagia. Ann Rehabil Med. 2012;36:512. https://doi.org/10.5535/arm.2012.36.4.512.

Article  PubMed  PubMed Central  Google Scholar 

Carnaby G, Hankey GJ, Pizzi J. Behavioural intervention for dysphagia in acute stroke: a randomised controlled trial. Lancet Neurol. 2006;5:31–7. https://doi.org/10.1016/S1474-4422(05)70252-0.

Article  PubMed  Google Scholar 

Speyer R, Baijens L, Heijnen M, Zwijnenberg I. Effects of therapy in oropharyngeal dysphagia by speech and language therapists: a systematic review. Dysphagia. 2010;25:40–65. https://doi.org/10.1007/s00455-009-9239-7.

Article  PubMed  Google Scholar 

Yang S, Park J-W, Min K, Lee YS, Song Y-J, Choi SH, et al. Clinical practice guidelines for oropharyngeal dysphagia. Ann Rehabil Med. 2023;47:S1. https://doi.org/10.5535/arm.23069.

Article  PubMed  PubMed Central  Google Scholar 

McCullough GH, Kim Y. Effects of the mendelsohn maneuver on extent of hyoid movement and UES opening post-stroke. Dysphagia. 2013. https://doi.org/10.1007/s00455-013-9461-1.

Article  PubMed  PubMed Central  Google Scholar 

McCullough GH, Kamarunas E, Mann GC, Schmidley JW, Robbins JA, Crary MA. Effects of mendelsohn maneuver on measures of swallowing duration post-stroke. Top Stroke Rehabil. 2012;19:234. https://doi.org/10.1310/tsr1903-234.

Article  PubMed  PubMed Central  Google Scholar 

Lazarus CL, Husaini H, Falciglia D, DeLacure M, Branski RC, Kraus D, et al. Effects of exercise on swallowing and tongue strength in patients with oral and oropharyngeal cancer treated with primary radiotherapy with or without chemotherapy. Int J Oral Maxillofac Surg. 2013;43:523. https://doi.org/10.1016/j.ijom.2013.10.023.

Article  PubMed  PubMed Central  Google Scholar 

Bath PM, Lee HS, Everton LF. Swallowing therapy for dysphagia in acute and subacute stroke. Cochrane Database Syst Rev. 2018;10:CD000323.

PubMed  Google Scholar 

Duncan S, McAuley DF, Walshe M, McGaughey J, Anand R, Fallis R, et al. Interventions for oropharyngeal dysphagia in acute and critical care: a systematic review and meta-analysis. Intensive Care Med. 2020;46:1326–38. https://doi.org/10.1007/s00134-020-06126-y.

Article  PubMed  PubMed Central  Google Scholar 

Balou M, Herzberg EG, Kamelhar D, Molfenter SM. An intensive swallowing exercise protocol for improving swallowing physiology in older adults with radiographically confirmed dysphagia. Clin Interv Aging. 2019;14:283–8. https://doi.org/10.2147/CIA.S194723.

Article  PubMed  PubMed Central  Google Scholar 

Martin-Harris B, Brodsky MB, Michel Y, Castell DO, Schleicher M, Sandidge J, et al. MBS measurement tool for swallow impairment—MBSImp: establishing a standard. Dysphagia. 2008;23:392–405. https://doi.org/10.1007/s00455-008-9185-9.

Article  PubMed  PubMed Central  Google Scholar 

Rosenbek JC, Robbins JA, Roecker EB, Coyle JL, Wood JL. A penetration-aspiration scale. Dysphagia. 1996;11:93–8. https://doi.org/10.1007/BF00417897.

Article  CAS  PubMed  Google Scholar 

Cichero JAY, Lam P, Steele CM, Hanson B, Chen J, Dantas RO, et al. Development of international terminology and definitions for texture-modified foods and thickened fluids used in dysphagia management: the IDDSI framework. Dysphagia. 2017;32:293–314. https://doi.org/10.1007/s00455-016-9758-y.

Article  PubMed  Google Scholar 

Beall J, Hill EG, Armeson K, Garand KL, Davidson K, Martin-Harris B. Classification of physiologic swallowing impairment severity: a latent class analysis of modified barium swallow impairment profile scores. Am J Speech Lang Pathol. 2020;29:1001–11. https://doi.org/10.23641/asha.12315677.

Article  PubMed  PubMed Central  Google Scholar 

Robbins J, Coyle J, Rosenbek J, Roecker E, Wood J. Differentiation of normal and abnormal airway protection during swallowing using the penetration-aspiration scale. Dysphagia. 1999;14:228–32. https://doi.org/10.1007/PL00009610.

Article  CAS  PubMed  Google Scholar 

Leder SB, Suiter DM, Green BG. Silent aspiration risk is volume-dependent. Dysphagia. 2011;26:304–9. https://doi.org/10.1007/s00455-010-9312-2.

Article  PubMed  Google Scholar 

Jordan Hazelwood R, Armeson KE, Hill EG, Bonilha HS, Martin-Harris B. Identification of swallowing tasks from a modified barium swallow study that optimize the detection of physiological impairment. J Speech Lang Hear Res JSLHR. 2017;60:1855–63. https://doi.org/10.1044/2017_JSLHR-S-16-0117.

Article  PubMed  Google Scholar 

R Core Team. R: A language and environment for statistical computing. Vienna, Austria: R Foundation for Statistical Computing; 2023.

Google Scholar 

Christensen RHB. 2022 ordinal - Regression models for ordinal data. https://CRAN.R-project.org/package=ordinal

Bates D, Mächler M, Bolker B, Walker S. Fitting linear mixed-effects models using lme4. J Stat Softw. 2015;67:1–48. https://doi.org/10.18637/jss.v067.i01.

Article  Google Scholar 

Wickham H. ggplot2: elegant graphics for data analysis. Verlag, New York: Springer; 2016.

Google Scholar 

Eltringham SA, Kilner K, Gee M, Sage K, Bray BD, Smith CJ, et al. Factors associated with risk of stroke-associated pneumonia in patients with dysphagia: a systematic review. Dysphagia. 2020;35:735–44. https://doi.org/10.1007/s00455-019-10061-6.

Article  PubMed  Google Scholar 

Eskildsen SJ, Poulsen I, Jakobsen D, Riberholt CG, Curtis DJ. Scoping review to identify and map non-pharmacological, non-surgical treatments for dysphagia following moderate-to-severe acquired brain injury. BMJ Open. 2021;11:e053244.