The critical integration of timing and patterning between respiratory and swallowing events was studied with simultaneous videofluoroscopic and respiratory recording during single liquid swallows. Respiratory phase patterns and the onsets and durations of 12 predetermined swallowing events and associated respiratory activities were studied. Results showed four highly repeatable, temporally orie...

Previous investigations of human pharyngeal muscle activation patterns during swallowing found a relatively invariant muscle activation onset sequence in the upright position. However, different gravitational forces influence a liquid bolus when supine and could modify the central timing control of laryngeal airway protection during swallowing. The purpose of this study was to determine whether...

Swallowing problems can affect as many as one in three patients in the period immediately after a stroke. In some cases this can lead to serious morbidity, in particular malnutrition and pulmonary aspiration. Despite this, swallowing usually recovers to a safe level in the majority of patients within weeks. This propensity for recovery is likely to relate to how the swallowing motor cortex is o...

INTRODUCTION Disorders affecting the oropharynx and esophagus are relatively common in dogs, and are typically associated with dysphagia. Despite the frequency of this problem, the diagnosis of disorders affecting the oropharyngeal, esophageal or gastroesophageal phase of swallowing can be extremely challenging, and warrant a thorough physical examination, followed by clinical observations of t...

Organ preservation protocols of high-dose chemoradiotherapy have become fairly common to treat head and neck cancers. However, significant swallowing problems can occur. This study examines swallowing, oral tongue pressures, and tongue base-to-pharyngeal wall pressures in a patient who underwent total laryngectomy for improvement of swallowing after chemoradiotherapy for treatment of a hypophar...

BACKGROUND Various functional resonance imaging, magnetoencephalographic and lesion studies suggest the involvement of the insular cortex in the control of swallowing. However, the exact location of insular activation during swallowing and its functional significance remain unclear. CASE PRESENTATION Invasive electroencephalographic monitoring was performed in a 24-year-old man with medically...

The aim of the present study was to evaluate the swallowing patterns of the tongue using B-mode sonography. A total of 65 patients aged between eight and 35 years were enrolled in the study including 25 controls. The swallowing patterns of the 40 patients were divided into groups of ten normal, 12 inconsistent, and 18 abnormal. Eight patients with a swallowing abnormality had Angle Class I occl...

OBJECTIVE To investigate effects of tracheostomy tube on the movement of the hyoid bone and larynx during swallowing by quantitative analysis of videofluoroscopic swallowing study. METHOD 19 adult stroke patients with tracheostomies, who met the criteria of decannulation participated. Serial videofluroscopic swallowing studies were done over 14 days before decannulation, within 24 hours befor...

Investigation of the neurophysiologic control of swallowing presents the researcher with a fascinating and challenging journey through the varied terrains of neuromotor control. A unique task by virtue of its complexity, the swallowing process is engaged both volitionally and reflexively, presumably driven by both cortical and subcortical neural structures, and is complicated by the nature of s...

OBJECTIVE To investigate swallowing laterality in hemiplegic patients with stroke and recovery of dysphagia according to the laterality. METHOD The sample was comprised of 46 dysphagic patients with hemiplegia after their first stroke. The sample's videofluoroscopic swallowing study (VFSS) was reviewed. Swallowing laterality was determined by the anterior-posterior view of VFSS. We measured w...