Searching for meaningful differences in viscosity. Effect of swallowed bolus variables on oral and pharyngeal phases of swallowing. The effect of high- vs low-density barium preparations on the quantitative features of swallowing. Premature infant swallowing: Patterns of tongue–soft palate coordination based upon videofluoroscopy. Timing of events in normal swallowing: a videofluoroscopic study. Hyoid motion during swallowing: Factors affecting forward and upward displacement. Quantitative assessment of hyoid bone displacement from video images during swallowing. Pharyngeal effects of bolus volume, viscosity, and temperature in patients with dysphagia resulting from neurologic impairment and in normal subjects.
Effects of bolus volume, viscosity, and repeated swallows in nonstroke subjects and stroke patients.
The influence of bolus volume and viscosity on anterior lingual force during the oral stage of swallowing. Deglutitive tongue force modulation by volition, volume, and viscosity in humans. Preliminary ultrasound observation of lingual movement patterns during nutritive versus non-nutritive sucking in a premature infant. Development of co-ordination of sucking, swallowing and breathing: ultrasound study of term and preterm infants. Ultrasound demonstration of tongue motions during suckle feeding. Swallowing dysfunction in infants less than 1 year of age. Image processing in swallowing and speech research. Viscosity in infant dysphagia management: comparison of viscosity of thickened liquids used in assessment and thickened liquids used in treatment.
Nectar thick liquids series#
Feeding difficulties in the first days of life: findings on upper gastrointestinal series and the role of videofluoroscopic swallowing study. Pediatric swallowing and feeding: assessment and management. Assessment of infant oral sensorimotor and swallowing function. Coordination of sucking, swallowing, and breathing and oxygen saturation during early infant breast-feeding and bottle-feeding. Together, the results suggest that slower-moving bolus transits may promote greater opportunity for available sensory information to be used to modulate timing of tongue–soft palate movements so that they are more effective for pumping liquids. Analysis of successive swallows indicated that tongue–soft palate coordination variability decreased with nectar-thick but not with thin-consistency barium. During swallows of nectar-thick compared to thin barium, tongue–soft palate coordination was more likely to be antiphase, bolus head pharyngeal transit time was longer, and coordination was significantly correlated with bolus head pharyngeal transit. Sequences of coordinated tongue–soft palate movements and bolus transits during swallows of thin-consistency and nectar-thick-consistency barium were digitized, and time series data were used to calculate continuous relative phase, a measure of coordination. Tongue–soft palate coordination and bolus head pharyngeal transit were studied by means of postacquisition kinematic analysis of videofluoroscopic swallowing images of ten preterm infants referred from hospital NICUs due to poor oral feeding and suspicion of aspiration.