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Quantitative, reliable measures of swallowing physiology can be made from an modified barium swallowing study. These quantitative measures have not been previously employed to study large dysphagic patient populations. The present retrospective study of 139 consecutive patients with dysphagia seen in a university tertiary voice and swallowing clinic sought to use objective measures of swallowing physiology...
The increasing incidence of pediatric dysphagia has raised questions about how to identify children at risk for aspiration. Multiple investigative imaging modalities are considered in diagnostic algorithms, since dysphagia may involve any or all phases of swallowing. Although upper gastrointestinal (UGI) series and videofluoroscopic swallow study (VFSS) are common procedures, the utility of UGI for...
A clinical swallowing examination (CSE) is generally believed to be inadequate for making judgments regarding swallowing physiology compared to objective assessments. A large volume of studies has heavily focused on identifying aspiration using a CSE and research addressing physiologic information gathered from a CSE is sparse. The purpose of this study was to examine the utility of the CSE for assessing...
The objective of this investigation was to determine if there were differences in identifying airway invasion (penetration or aspiration) during fiberoptic endoscopic evaluations of swallowing (FEES) for green-dyed versus non-dyed liquids. Forty adult inpatients in an acute care hospital underwent FEES, with both green-dyed liquids and naturally white liquids. Three speech-language pathologists rated...
Dysphagia is a symptom suggestive of severe underlying pathology, although its causes include organic and non-organic disorders. The epidemiology of dysphagia is, however, poorly understood. We evaluated the prevalence of dysphagia in outpatients in Japan, measured the proportion ultimately found to have an organic cause, and recorded the nature of their symptoms and the underlying disorder. Of 5362...
Killian-Jamieson diverticulum is a outpouching of the lateral cervical esophageal wall adjacent to the insertion of the recurrent laryngeal to the larynx and is much less common in clinical practice than Zenkers Diverticulum. Surgical management of Killian-Jamieson diverticulum requires open transcervical diverticulectomy due to the proximity of the recurrent laryngeal nerve to the base of the pouch...
This study examined the relationships between subjective descriptors and objective airflow measures of cough. We hypothesized that coughs with specific airflow characteristics would share common subjective perceptual descriptions. Thirty clinicians (speech-language pathologists, otolaryngologists, and neurologists) perceptually evaluated ten cough audio samples with specific airflow characteristics...
This study examined the method by which the viscosity of mealtime and videofluoroscopy fluid can be matched through adjustment of the amount of xanthan gum-based thickener added to them. Viscosity measurement was made with a cone-plate viscometer. Samples were tested at 5, 25, 45, and 65 ± 0.1 °C and shear rates of 5–200 s−1. We found that the adjusted amount of thickener differs depending on the...
Swallowing is an important physiological response that protects the airway. Although aspiration during sleep may cause aspiration pneumonia, the mechanisms responsible have not yet been elucidated. We evaluated the coordination between respiration and swallowing by infusing water into the pharynx of healthy young adults during each sleep stage. Seven normal subjects participated in the study. During...
Dysphagia has been estimated to affect around 8–16 % of healthy elderly individuals living in the community. The present study investigated the stability of perceived dysphagia symptoms over a 3-year period and whether such symptoms predicted death outcomes. A population of 800 and 550 elderly community-dwelling individuals were sent the Sydney Swallow Questionnaire (SSQ) in 2009 and 2012, respectively,...
Some stroke patients with a unilateral lesion demonstrate acute dysphagia characterized by a markedly prolonged swallowing time, making us think they are reluctant to swallow. In order to clarify the clinical characteristics and causative lesions of delayed swallowing, we conducted a retrospective analysis of 20 right-handed patients without a history of swallowing dysfunction who underwent videofluorography...
The objective of this study was to determine the clinical characteristics of swallowing disorders in severe brain injury in the arousal phase after coma. Between December 1, 2013 and June 30, 2014, eleven patients with severe acquired brain injury who were admitted to rehabilitation center (Male 81.8 %; 40.7 ± 14.6 years) were included in the study. Evaluation of swallowing included a functional examination,...
Acoustic Pharyngometry (APh) is a method for quantifying oropharyngeal tract configuration using sound wave reflection and is commonly used in diagnostics and research of sleep apnea. The standard preset output of APh (minimal cross-sectional area) has been established as reliable. However, by conducting post-processing measures on specific breathing tasks, APh data can also reveal oral length, oral...
Videofluoroscopic swallowing study (VFSS) is considered the standard diagnostic imaging technique to investigate swallowing disorders and dysphagia. Few studies have been reported concerning the dose of radiation a patient receives and the scattering radiation dose received by a physician during VFSS. In this study, we investigated the dose of radiation (entrance skin dose, ESD) estimated to be received...
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