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Updated: Jun 21, 2026

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
Published on: March 1, 2015
Detecting dysphagia in inclusion body myositis
F M Cox1, J J Verschuuren, B M Verbist
1Department of Neurology, Leiden University Medical Centre, P.O. Box 9600, 2300 RC Leiden, The Netherlands. f.cox@lumc.nl
Dysphagia (swallowing difficulty) is common in inclusion body myositis (IBM), affecting 65% of patients. Many underreport symptoms, highlighting the need for specific questioning to identify this disabling condition.
Area of Science:
- Neurology
- Gastroenterology
- Swallowing Disorders
Background:
- Dysphagia is an underrecognized symptom in inclusion body myositis (IBM).
- It can lead to significant disability and pose life-threatening risks.
- Understanding its prevalence and correlation with objective findings is crucial.
Purpose of the Study:
- To determine the prevalence of dysphagia in IBM patients.
- To correlate patient-reported symptoms with videofluoroscopy (VFS) findings.
- To identify reliable methods for detecting dysphagia in IBM.
Main Methods:
- Interviewed 57 IBM patients using a dysphagia questionnaire.
- Performed swallowing videofluoroscopy (VFS) on 43 patients.
- Analyzed symptom-sign correlation between reported dysphagia and VFS results.
Main Results:
- Dysphagia symptoms were reported by 65% of IBM patients.
- Impaired propulsion (IP) and aspiration-related symptoms were frequent.
- VFS confirmed swallowing abnormalities in 79% of patients, with 92% concordance for reported IP.
Conclusions:
- Dysphagia is highly prevalent in IBM but often underreported.
- Specific questions about food sticking or repeated swallowing can predict VFS findings.
- Early identification through targeted questioning aids in VFS selection and treatment.
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