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Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
Published on: March 1, 2015
Videofluoroscopic swallow study in dysphagia stroke patients
Martina Kelblová1, Jiří Vaníček1, Viktor Weiss2
1Department of Medical Imaging, St. Anne's University Hospital and Faculty of Medicine, Masaryk University, Brno, Czechia.
Frontiers in Neurology
|July 23, 2026
Summary
Ischemic stroke location impacts oral swallowing difficulties, with supratentorial lesions causing more impairment. Videofluoroscopic swallow study (VFSS) is beneficial for diagnosing dysphagia in stroke patients, irrespective of lesion site.
Area of Science:
- Neurology
- Gastroenterology
- Speech-Language Pathology
Background:
- Dysphagia is a frequent complication following ischemic stroke, potentially leading to severe outcomes like aspiration pneumonia.
- Videofluoroscopic swallow study (VFSS) is crucial for assessing swallowing function and guiding therapy.
- Understanding the link between stroke lesion location and dysphagia characteristics is vital for patient management.
Purpose of the Study:
- To investigate the relationship between the location of ischemic stroke lesions and the specific patterns of swallowing impairment.
- To determine how lesion location influences the frequency and severity of aspiration in post-stroke dysphagia patients.
Main Methods:
- A retrospective analysis of 27 dysphagia patients post-ischemic stroke was conducted.
- Brain MRI identified precise lesion locations, while CT scans were negative for stroke.
- Patients underwent VFSS with modified barium swallow impairment profile (MBSImP) assessment, including oral impairment (OI) and pharyngeal impairment (PI) variables, and aspiration was scored using the Penetration-Aspiration Scale (PAS).
Main Results:
- Oral phase impairment (OI) was significantly greater in patients with supratentorial lesions (p < 0.001).
- Pharyngeal phase impairment (PI) did not show statistically significant differences based on lesion location.
- No significant correlation was found between lesion location (supratentorial or infratentorial) and the frequency or severity of aspiration (PAS scores).
Conclusions:
- Ischemic stroke lesion location in the corticobulbar tract can predict the nature of swallowing disorders, particularly affecting the oral phase in supratentorial lesions.
- While aspiration is common in corticobulbar tract damage, its relationship with specific lesion location remains unclear.
- VFSS is a valuable diagnostic tool for dysphagia in mild to moderate stroke patients, regardless of the identified lesion location.
