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Late Dysphagia Following Radiotherapy After Nasopharyngeal Carcinoma: A Case Series.

Abstract：

:Purpose Standard treatment for nasopharyngeal carcinoma (NPC) is radiation therapy (RT); however, long-term effects of RT frequently include significant swallowing impairments (dysphagia; Gaziano, 2002; Hui, Chan, & Le, 2018). Our objective was to describe swallowing physiology in consecutive outpatients with a history of NPC following RT using standardized methods. Understanding dysphagia characteristics in this patient population could ultimately inform rehabilitation strategies and improve patient outcomes. Method We conducted a retrospective, observational, descriptive study of consecutive outpatients undergoing videofluoroscopic swallowing (VFS) exams at our clinic, from 2009 to 2014. We included those with a diagnosis of NPC treated with RT. Those with other cancer diagnoses; previous tracheostomy; acute neurological injury; and progressive, degenerative neurological conditions were excluded. Two registered MBSImP clinicians, blinded to each other, reviewed and scored the VFS exams according to previously published methods (Martin-Harris et al., 2008). Following unblinding, a single reviewer collected demographic data from the electronic medical record. We reported overall impairment and MBSImP component scores descriptively. Results Of 158 outpatients undergoing VFS, 6 (N) met our inclusion criteria. The median time from completion of RT to outpatient VFS was 21.0 years. Patients reported a variety of dysphagia symptoms. All patients had high oral and pharyngeal residue scores (scores ≥ 2) and high impairment scores on components contributing to bolus transport and airway closure. Conclusions All patients presented with impairments in oral-pharyngeal bolus transport and airway protection. Our results identify specific swallowing impairments for this patient group highlighting possible latent RT effects on swallowing. This population would benefit from dysphagia rehabilitation and maintenance programs informed by multimodal diagnostic approaches.

journal_name

Am J Speech Lang Pathol

journal_title

American journal of speech-language pathology

authors

Schreiber AM,Dawson C,Skoretz SA

doi

10.1044/2019_AJSLP-19-0116

subject

Has Abstract

pub_date

2020-02-07 00:00:00

pages

319-326

issue

eissn

1058-0360

issn

1558-9110

journal_volume

pub_type

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Late Dysphagia Following Radiotherapy After Nasopharyngeal Carcinoma: A Case Series.